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2009-04-09 Paolo Bonzini <bonzini@gnu.org>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2009-04-09  Paolo Bonzini  <bonzini@gnu.org>
2
3         * expmed.c (expand_divmod): Always use a comparison for a division
4         by a large unsigned integer.
5
6         * fold-const.c (tree_single_nonzero_warnv_p): Always treat decls
7         for things others than variables or functions as nonzero.
8
9 2009-04-09  Nick Clifton  <nickc@redhat.com>
10
11         * unwind-compat.c: Change copyright header to refer to version
12         3 of the GNU General Public License with version 3.1 of the
13         GCC Runtime Library Exception and to point readers at the
14         COPYING3 and COPYING3.RUNTIME files and the FSF's license web
15         page.
16         * config/alpha/crtfastmath.c: Likewise.
17         * config/alpha/linux-unwind.h: Likewise.
18         * config/alpha/qrnnd.asm: Likewise.
19         * config/alpha/vms-crt0-64.c: Likewise.
20         * config/alpha/vms-crt0.c: Likewise.
21         * config/alpha/vms-dwarf2.asm: Likewise.
22         * config/alpha/vms-dwarf2eh.asm: Likewise.
23         * config/alpha/vms-psxcrt0-64.c: Likewise.
24         * config/alpha/vms-psxcrt0.c: Likewise.
25         * config/alpha/vms_tramp.asm: Likewise.
26         * config/arc/initfini.c: Likewise.
27         * config/arc/lib1funcs.asm: Likewise.
28         * config/arm/bpabi-v6m.S: Likewise.
29         * config/arm/bpabi.S: Likewise.
30         * config/arm/bpabi.c: Likewise.
31         * config/arm/crti.asm: Likewise.
32         * config/arm/crtn.asm: Likewise.
33         * config/arm/ieee754-df.S: Likewise.
34         * config/arm/ieee754-sf.S: Likewise.
35         * config/arm/lib1funcs.asm: Likewise.
36         * config/arm/libunwind.S: Likewise.
37         * config/arm/linux-atomic.c: Likewise.
38         * config/arm/mmintrin.h: Likewise.
39         * config/arm/pr-support.c: Likewise.
40         * config/arm/unaligned-funcs.c: Likewise.
41         * config/arm/unwind-arm.c: Likewise.
42         * config/arm/unwind-arm.h: Likewise.
43         * config/avr/libgcc.S: Likewise.
44         * config/bfin/crti.s: Likewise.
45         * config/bfin/crtlibid.s: Likewise.
46         * config/bfin/crtn.s: Likewise.
47         * config/bfin/lib1funcs.asm: Likewise.
48         * config/bfin/linux-unwind.h: Likewise.
49         * config/cris/arit.c: Likewise.
50         * config/cris/cris_abi_symbol.c: Likewise.
51         * config/darwin-64.c: Likewise.
52         * config/darwin-crt2.c: Likewise.
53         * config/darwin-crt3.c: Likewise.
54         * config/darwin.h: Likewise.
55         * config/dbxelf.h: Likewise.
56         * config/dfp-bit.c: Likewise.
57         * config/dfp-bit.h: Likewise.
58         * config/elfos.h: Likewise.
59         * config/fixed-bit.c: Likewise.
60         * config/fixed-bit.h: Likewise.
61         * config/fp-bit.c: Likewise.
62         * config/fp-bit.h: Likewise.
63         * config/fr30/crti.asm: Likewise.
64         * config/fr30/crtn.asm: Likewise.
65         * config/fr30/lib1funcs.asm: Likewise.
66         * config/freebsd-spec.h: Likewise.
67         * config/frv/cmovd.c: Likewise.
68         * config/frv/cmovh.c: Likewise.
69         * config/frv/cmovw.c: Likewise.
70         * config/frv/frvbegin.c: Likewise.
71         * config/frv/frvend.c: Likewise.
72         * config/frv/lib1funcs.asm: Likewise.
73         * config/glibc-stdint.h: Likewise.
74         * config/h8300/clzhi2.c: Likewise.
75         * config/h8300/crti.asm: Likewise.
76         * config/h8300/crtn.asm: Likewise.
77         * config/h8300/ctzhi2.c: Likewise.
78         * config/h8300/fixunssfsi.c: Likewise.
79         * config/h8300/lib1funcs.asm: Likewise.
80         * config/h8300/parityhi2.c: Likewise.
81         * config/h8300/popcounthi2.c: Likewise.
82         * config/i386/ammintrin.h: Likewise.
83         * config/i386/att.h: Likewise.
84         * config/i386/avxintrin.h: Likewise.
85         * config/i386/biarch64.h: Likewise.
86         * config/i386/bmmintrin.h: Likewise.
87         * config/i386/cpuid.h: Likewise.
88         * config/i386/cross-stdarg.h: Likewise.
89         * config/i386/crtfastmath.c: Likewise.
90         * config/i386/crtprec.c: Likewise.
91         * config/i386/cygming-crtbegin.c: Likewise.
92         * config/i386/cygming-crtend.c: Likewise.
93         * config/i386/cygwin.asm: Likewise.
94         * config/i386/emmintrin.h: Likewise.
95         * config/i386/gmm_malloc.h: Likewise.
96         * config/i386/gthr-win32.c: Likewise.
97         * config/i386/i386.h: Likewise.
98         * config/i386/immintrin.h: Likewise.
99         * config/i386/linux-unwind.h: Likewise.
100         * config/i386/linux64.h: Likewise.
101         * config/i386/mm3dnow.h: Likewise.
102         * config/i386/mmintrin-common.h: Likewise.
103         * config/i386/mmintrin.h: Likewise.
104         * config/i386/nmmintrin.h: Likewise.
105         * config/i386/pmm_malloc.h: Likewise.
106         * config/i386/pmmintrin.h: Likewise.
107         * config/i386/smmintrin.h: Likewise.
108         * config/i386/sol2-c1.asm: Likewise.
109         * config/i386/sol2-ci.asm: Likewise.
110         * config/i386/sol2-cn.asm: Likewise.
111         * config/i386/sol2-gc1.asm: Likewise.
112         * config/i386/tmmintrin.h: Likewise.
113         * config/i386/unix.h: Likewise.
114         * config/i386/w32-unwind.h: Likewise.
115         * config/i386/wmmintrin.h: Likewise.
116         * config/i386/x86-64.h: Likewise.
117         * config/i386/x86intrin.h: Likewise.
118         * config/i386/xmmintrin.h: Likewise.
119         * config/ia64/crtbegin.asm: Likewise.
120         * config/ia64/crtend.asm: Likewise.
121         * config/ia64/crtfastmath.c: Likewise.
122         * config/ia64/crti.asm: Likewise.
123         * config/ia64/crtn.asm: Likewise.
124         * config/ia64/fde-glibc.c: Likewise.
125         * config/ia64/lib1funcs.asm: Likewise.
126         * config/ia64/linux-unwind.h: Likewise.
127         * config/ia64/quadlib.c: Likewise.
128         * config/ia64/unwind-ia64.c: Likewise.
129         * config/linux.h: Likewise.
130         * config/m32c/m32c-lib1.S: Likewise.
131         * config/m32c/m32c-lib2-trapv.c: Likewise.
132         * config/m32c/m32c-lib2.c: Likewise.
133         * config/m32r/initfini.c: Likewise.
134         * config/m68hc11/larith.asm: Likewise.
135         * config/m68hc11/m68hc11-crt0.S: Likewise.
136         * config/m68k/cf.md: Likewise.
137         * config/m68k/crti.s: Likewise.
138         * config/m68k/crtn.s: Likewise.
139         * config/m68k/lb1sf68.asm: Likewise.
140         * config/m68k/linux-unwind.h: Likewise.
141         * config/mcore/crti.asm: Likewise.
142         * config/mcore/crtn.asm: Likewise.
143         * config/mcore/lib1.asm: Likewise.
144         * config/mips/linux-unwind.h: Likewise.
145         * config/mips/loongson.h: Likewise.
146         * config/mips/mips16.S: Likewise.
147         * config/mmix/crti.asm: Likewise.
148         * config/mmix/crtn.asm: Likewise.
149         * config/pa/fptr.c: Likewise.
150         * config/pa/hpux-unwind.h: Likewise.
151         * config/pa/lib2funcs.asm: Likewise.
152         * config/pa/linux-atomic.c: Likewise.
153         * config/pa/linux-unwind.h: Likewise.
154         * config/pa/milli64.S: Likewise.
155         * config/pa/quadlib.c: Likewise.
156         * config/pa/stublib.c: Likewise.
157         * config/picochip/libgccExtras/adddi3.asm: Likewise.
158         * config/picochip/libgccExtras/ashlsi3.asm: Likewise.
159         * config/picochip/libgccExtras/ashlsi3.c: Likewise.
160         * config/picochip/libgccExtras/ashrsi3.asm: Likewise.
161         * config/picochip/libgccExtras/ashrsi3.c: Likewise.
162         * config/picochip/libgccExtras/cmpsi2.asm: Likewise.
163         * config/picochip/libgccExtras/divmod15.asm: Likewise.
164         * config/picochip/libgccExtras/divmodhi4.asm: Likewise.
165         * config/picochip/libgccExtras/divmodsi4.asm: Likewise.
166         * config/picochip/libgccExtras/longjmp.asm: Likewise.
167         * config/picochip/libgccExtras/lshrsi3.asm: Likewise.
168         * config/picochip/libgccExtras/lshrsi3.c: Likewise.
169         * config/picochip/libgccExtras/parityhi2.asm: Likewise.
170         * config/picochip/libgccExtras/popcounthi2.asm: Likewise.
171         * config/picochip/libgccExtras/setjmp.asm: Likewise.
172         * config/picochip/libgccExtras/subdi3.asm: Likewise.
173         * config/picochip/libgccExtras/ucmpsi2.asm: Likewise.
174         * config/picochip/libgccExtras/udivmodhi4.asm: Likewise.
175         * config/picochip/libgccExtras/udivmodsi4.asm: Likewise.
176         * config/rs6000/750cl.h: Likewise.
177         * config/rs6000/altivec.h: Likewise.
178         * config/rs6000/biarch64.h: Likewise.
179         * config/rs6000/crtresfpr.asm: Likewise.
180         * config/rs6000/crtresgpr.asm: Likewise.
181         * config/rs6000/crtresxfpr.asm: Likewise.
182         * config/rs6000/crtresxgpr.asm: Likewise.
183         * config/rs6000/crtsavfpr.asm: Likewise.
184         * config/rs6000/crtsavgpr.asm: Likewise.
185         * config/rs6000/darwin-asm.h: Likewise.
186         * config/rs6000/darwin-fallback.c: Likewise.
187         * config/rs6000/darwin-fpsave.asm: Likewise.
188         * config/rs6000/darwin-ldouble.c: Likewise.
189         * config/rs6000/darwin-tramp.asm: Likewise.
190         * config/rs6000/darwin-unwind.h: Likewise.
191         * config/rs6000/darwin-vecsave.asm: Likewise.
192         * config/rs6000/darwin-world.asm: Likewise.
193         * config/rs6000/e500crtres32gpr.asm: Likewise.
194         * config/rs6000/e500crtres64gpr.asm: Likewise.
195         * config/rs6000/e500crtres64gprctr.asm: Likewise.
196         * config/rs6000/e500crtrest32gpr.asm: Likewise.
197         * config/rs6000/e500crtrest64gpr.asm: Likewise.
198         * config/rs6000/e500crtresx32gpr.asm: Likewise.
199         * config/rs6000/e500crtresx64gpr.asm: Likewise.
200         * config/rs6000/e500crtsav32gpr.asm: Likewise.
201         * config/rs6000/e500crtsav64gpr.asm: Likewise.
202         * config/rs6000/e500crtsav64gprctr.asm: Likewise.
203         * config/rs6000/e500crtsavg32gpr.asm: Likewise.
204         * config/rs6000/e500crtsavg64gpr.asm: Likewise.
205         * config/rs6000/e500crtsavg64gprctr.asm: Likewise.
206         * config/rs6000/eabi-ci.asm: Likewise.
207         * config/rs6000/eabi-cn.asm: Likewise.
208         * config/rs6000/eabi.asm: Likewise.
209         * config/rs6000/linux-unwind.h: Likewise.
210         * config/rs6000/linux64.h: Likewise.
211         * config/rs6000/paired.h: Likewise.
212         * config/rs6000/paired.md: Likewise.
213         * config/rs6000/ppc64-fp.c: Likewise.
214         * config/rs6000/ppu_intrinsics.h: Likewise.
215         * config/rs6000/rs6000.h: Likewise.
216         * config/rs6000/si2vmx.h: Likewise.
217         * config/rs6000/sol-ci.asm: Likewise.
218         * config/rs6000/sol-cn.asm: Likewise.
219         * config/rs6000/spe.h: Likewise.
220         * config/rs6000/spu2vmx.h: Likewise.
221         * config/rs6000/sysv4.h: Likewise.
222         * config/rs6000/tramp.asm: Likewise.
223         * config/rs6000/vec_types.h: Likewise.
224         * config/s390/linux-unwind.h: Likewise.
225         * config/s390/tpf-unwind.h: Likewise.
226         * config/score/crti.asm: Likewise.
227         * config/score/crtn.asm: Likewise.
228         * config/sh/crt1.asm: Likewise.
229         * config/sh/crti.asm: Likewise.
230         * config/sh/crtn.asm: Likewise.
231         * config/sh/divtab-sh4-300.c: Likewise.
232         * config/sh/divtab-sh4.c: Likewise.
233         * config/sh/divtab.c: Likewise.
234         * config/sh/lib1funcs-4-300.asm: Likewise.
235         * config/sh/lib1funcs-Os-4-200.asm: Likewise.
236         * config/sh/lib1funcs.asm: Likewise.
237         * config/sh/lib1funcs.h: Likewise.
238         * config/sh/linux-atomic.asm: Likewise.
239         * config/sh/linux-unwind.h: Likewise.
240         * config/sh/shmedia.h: Likewise.
241         * config/sh/sshmedia.h: Likewise.
242         * config/sh/ushmedia.h: Likewise.
243         * config/sparc/crtfastmath.c: Likewise.
244         * config/sparc/linux-unwind.h: Likewise.
245         * config/sparc/sol2-c1.asm: Likewise.
246         * config/sparc/sol2-ci.asm: Likewise.
247         * config/sparc/sol2-cn.asm: Likewise.
248         * config/spu/divmodti4.c: Likewise.
249         * config/spu/divv2df3.c: Likewise.
250         * config/spu/float_disf.c: Likewise.
251         * config/spu/float_unsdidf.c: Likewise.
252         * config/spu/float_unsdisf.c: Likewise.
253         * config/spu/float_unssidf.c: Likewise.
254         * config/spu/mfc_multi_tag_release.c: Likewise.
255         * config/spu/mfc_multi_tag_reserve.c: Likewise.
256         * config/spu/mfc_tag_release.c: Likewise.
257         * config/spu/mfc_tag_reserve.c: Likewise.
258         * config/spu/mfc_tag_table.c: Likewise.
259         * config/spu/multi3.c: Likewise.
260         * config/spu/spu_internals.h: Likewise.
261         * config/spu/spu_intrinsics.h: Likewise.
262         * config/spu/spu_mfcio.h: Likewise.
263         * config/spu/vec_types.h: Likewise.
264         * config/spu/vmx2spu.h: Likewise.
265         * config/stormy16/stormy16-lib2.c: Likewise.
266         * config/svr4.h: Likewise.
267         * config/sync.c: Likewise.
268         * config/v850/lib1funcs.asm: Likewise.
269         * config/vxlib-tls.c: Likewise.
270         * config/vxlib.c: Likewise.
271         * config/vxworks-dummy.h: Likewise.
272         * config/xtensa/crti.asm: Likewise.
273         * config/xtensa/crtn.asm: Likewise.
274         * config/xtensa/ieee754-df.S: Likewise.
275         * config/xtensa/ieee754-sf.S: Likewise.
276         * config/xtensa/lib1funcs.asm: Likewise.
277         * config/xtensa/lib2funcs.S: Likewise.
278         * config/xtensa/linux-unwind.h: Likewise.
279         * config/xtensa/unwind-dw2-xtensa.c: Likewise.
280         * config/xtensa/unwind-dw2-xtensa.h: Likewise.
281         * coretypes.h: Likewise.
282         * crtstuff.c: Likewise.
283         * defaults.h: Likewise.
284         * dwarf2.h: Likewise.
285         * emutls.c: Likewise.
286         * gbl-ctors.h: Likewise.
287         * gcov-io.h: Likewise.
288         * ginclude/float.h: Likewise.
289         * ginclude/iso646.h: Likewise.
290         * ginclude/stdarg.h: Likewise.
291         * ginclude/stdbool.h: Likewise.
292         * ginclude/stddef.h: Likewise.
293         * ginclude/stdfix.h: Likewise.
294         * ginclude/stdint-gcc.h: Likewise.
295         * ginclude/tgmath.h: Likewise.
296         * gthr-aix.h: Likewise.
297         * gthr-dce.h: Likewise.
298         * gthr-gnat.c: Likewise.
299         * gthr-gnat.h: Likewise.
300         * gthr-lynx.h: Likewise.
301         * gthr-mipssde.h: Likewise.
302         * gthr-nks.h: Likewise.
303         * gthr-posix.c: Likewise.
304         * gthr-posix.h: Likewise.
305         * gthr-posix95.h: Likewise.
306         * gthr-rtems.h: Likewise.
307         * gthr-single.h: Likewise.
308         * gthr-solaris.h: Likewise.
309         * gthr-tpf.h: Likewise.
310         * gthr-vxworks.h: Likewise.
311         * gthr-win32.h: Likewise.
312         * gthr.h: Likewise.
313         * libgcc2.c: Likewise.
314         * libgcc2.h: Likewise.
315         * libgcov.c: Likewise.
316         * tsystem.h: Likewise.
317         * typeclass.h: Likewise.
318         * unwind-c.c: Likewise.
319         * unwind-compat.h: Likewise.
320         * unwind-dw2-fde-compat.c: Likewise.
321         * unwind-dw2-fde-darwin.c: Likewise.
322         * unwind-dw2-fde-glibc.c: Likewise.
323         * unwind-dw2-fde.c: Likewise.
324         * unwind-dw2-fde.h: Likewise.
325         * unwind-dw2.c: Likewise.
326         * unwind-dw2.h: Likewise.
327         * unwind-generic.h: Likewise.
328         * unwind-pe.h: Likewise.
329         * unwind-sjlj.c: Likewise.
330         * unwind.inc: Likewise.
331         * config/arm/neon-gen.ml: Change generated copyright header to
332         refer to version 3 of the GNU General Public License with
333         version 3.1 of the GCC Runtime Library Exception and to point
334         readers at the COPYING3 and COPYING3.RUNTIME files and the
335         FSF's license web page.
336         * config/arm/arm_neon.h: Regenerate.
337
338 2009-04-09  Jakub Jelinek  <jakub@redhat.com>
339
340         * config/cris/cris.md: Change copyright header to refer to version
341         3 of the GNU General Public License.
342         * doc/install.texi2html: Change copyright header to refer to version
343         3 of the GNU General Public License and to point readers at the
344         COPYING3 file and the FSF's license web page.
345         * config/vax/linux.h: Likewise.
346
347 2009-04-09  Paolo Bonzini  <bonzini@gnu.org>
348
349         * config/i386/i386.md (cmpcc): New.
350         * config/i386/sync.md (sync_compare_and_swap*): Set FLAGS_REG.
351         (sync_compare_and_swap_cc*): Delete.
352
353         * config/s390/s390.c (s390_compare_emitted): Remove.
354         (s390_emit_compare): Handle MODE_CC s390_compare_op0 like
355         s390_compare_emitted used to be handled.  Assert that modes match.
356         (s390_emit_compare_and_swap): Use s390_emit_compare, do not
357         refer to sync_compare_and_swap_ccsi.
358         * config/s390/s390.h (s390_compare_emitted): Remove.
359         * config/s390/s390.md (seq): Look for MODE_CC s390_compare_op0
360         instead of s390_compare_emitted.
361         (stack_protect_test, sync_compare_and_swap_cc): Set s390_compare_op0
362         instead of s390_compare_emitted.
363         * config/s390/s390.md (cmpcc): New.
364         (sync_compare_and_swapqi, sync_compare_and_swaphi): Clobber
365         CC_REGNUM, do not pretend it's set.
366         (sync_compare_and_swap_cc*): Delete.
367         * config/s390/predicates.md (cc_reg_operand): New.
368
369         * expr.c (sync_compare_and_swap_cc): Delete.
370         * optabs.h (sync_compare_and_swap_cc): Delete.
371         * optabs.c (prepare_cmp_insn): Ignore which specific CCmode
372         is being used with can_compare_p.
373         (emit_cmp_and_jump_insn_1): Likewise when looking in the optab.
374         (find_cc_set): New.
375         (expand_bool_compare_and_swap): Do not use sync_compare_and_swap_cc,
376         look for a MODE_CC set instead.  Use emit_store_flag.
377         (expand_compare_and_swap_loop): Likewise, with some additional
378         complication to avoid a force_reg when useless.  Use
379         emit_cmp_and_jump_insns.
380         * genopinit.c (optabs): Delete sync_compare_and_swap_cc.
381         * doc/md.texi (sync_compare_and_swap_cc): Merge with
382         sync_compare_and_swap documentation.
383 =======
384         * config/i386/i386.md (cmpcc): New.
385         * config/i386/sync.md (sync_compare_and_swap*): Set FLAGS_REG.
386         (sync_compare_and_swap_cc*): Delete.
387
388         * config/s390/s390.c (s390_compare_emitted): Remove.
389         (s390_emit_compare): Handle MODE_CC s390_compare_op0 like
390         s390_compare_emitted used to be handled.  Assert that modes match.
391         (s390_emit_compare_and_swap): Use s390_emit_compare, do not
392         refer to sync_compare_and_swap_ccsi.
393         * config/s390/s390.h (s390_compare_emitted): Remove.
394         * config/s390/s390.md (seq): Look for MODE_CC s390_compare_op0
395         instead of s390_compare_emitted.
396         (stack_protect_test, sync_compare_and_swap_cc): Set s390_compare_op0
397         instead of s390_compare_emitted.
398         * config/s390/s390.md (cmpcc): New.
399         (sync_compare_and_swapqi, sync_compare_and_swaphi): Clobber
400         CC_REGNUM, do not pretend it's set.
401         (sync_compare_and_swap_cc*): Delete.
402         * config/s390/predicates.md (cc_reg_operand): New.
403
404         * expr.c (sync_compare_and_swap_cc): Delete.
405         * optabs.h (sync_compare_and_swap_cc): Delete.
406         * optabs.c (prepare_cmp_insn): Ignore which specific CCmode
407         is being used with can_compare_p.
408         (emit_cmp_and_jump_insn_1): Likewise when looking in the optab.
409         (find_cc_set): New.
410         (expand_bool_compare_and_swap): Do not use sync_compare_and_swap_cc,
411         look for a MODE_CC set instead.  Use emit_store_flag.
412         (expand_compare_and_swap_loop): Likewise, with some additional
413         complication to avoid a force_reg when useless.  Use
414         emit_cmp_and_jump_insns.
415         * genopinit.c (optabs): Delete sync_compare_and_swap_cc.
416         * doc/md.texi (sync_compare_and_swap_cc): Merge with
417         sync_compare_and_swap documentation.
418
419 2009-04-09  Jan Hubicka  <jh@suse.cz>
420
421         * except.c (find_prev_try): Break out from ....
422         (duplicate_eh_regions): ... here; properly update prev_try pointers
423         when duplication part of tree.
424         (dump_eh_tree): Improve dumping.
425         (verify_eh_region): New.
426         (verify_eh_tree): Use it.
427
428 2009-04-06  Richard Guenther  <rguenther@suse.de>
429
430         * c-gimplify.c (c_gimplify_expr): Fix the invalid GENERIC
431         &ARRAY addresses by adjusting their types and prepending
432         a conversion.
433         * tree-cfg.c (verify_gimple_assign_single): Verify that
434         addresses are correct.
435
436 2009-04-09  Richard Guenther  <rguenther@suse.de>
437
438         * tree-ssa-ccp.c (maybe_fold_stmt_addition): Move non-constant
439         indices into an array reference if possible.
440         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
441         Fold POINTER_PLUS_EXPR statements with invariant address.
442
443 2009-04-09  Alan Modra  <amodra@bigpond.net.au>
444
445         PR target/39634
446         * config.gcc (powerpc64-*-linux*): Always build biarch.
447
448 2009-04-09  Joseph Myers  <joseph@codesourcery.com>
449
450         PR c/39613
451         * c-typeck.c (do_case): If case label is not an INTEGER_CST, fold
452         it and pedwarn if this results in an INTEGER_CST.
453
454 2009-04-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
455
456         * doc/install.texi: Update minimum GMP version.  Remove obsolete
457         text in MPFR section.
458
459 2009-04-08  Jakub Jelinek  <jakub@redhat.com>
460
461         * dwarf2out.c (class_scope_p): New static inline.
462         (class_or_namespace_scope_p): Use it.
463         (gen_variable_die): Use DW_TAG_member tag for static data member
464         declarations instead of DW_TAG_variable.
465
466         PR middle-end/39573
467         * omp-low.c (expand_omp_taskreg): Finalize taskreg static local_decls
468         variables.
469
470 2009-04-08  Richard Guenther  <rguenther@suse.de>
471
472         * tree-ssa-sccvn.c (valueize_refs): Do not continue to
473         valueize random data.
474
475 2009-04-08  David Edelsohn  <edelsohn@gnu.org>
476
477         * config.gcc (aix tm_file):  Add aix-stdint.h.
478         (aix tm clause use_gcc_stdint):  Set to wrap.
479         * config/rs6000/aix-stdint.h:  New file.
480         
481 2009-04-08  Richard Guenther  <rguenther@suse.de>
482
483         PR middle-end/36291
484         * tree-dfa.c (add_referenced_var): Do not recurse into
485         global initializers.
486         * tree-ssa-ccp.c (get_symbol_constant_value): Add newly
487         exposed variables.
488         (fold_const_aggregate_ref): Likewise.
489
490 2009-04-08  Paolo Bonzini  <bonzini@gnu.org>
491
492         * recog.c (ordered_comparison_operator): New.
493         * gensupport.c (std_preds): Add it.
494         * doc/md.texi (Machine-Independent Predicates): Document it.
495
496 2009-04-08  Jan Hubicka  <jh@suse.cz>
497
498         * tree-eh.c (cleanup_eh): When not optimizing, do not try EH merging.
499         * function.h (rtl_eh): Remove exception_handler_label_map.
500         * except.c (ehl_hash, ehl_eq, add_ehl_entry,
501         remove_exception_handler_label, for_each_eh_label_1): Remove.
502         (rtl_remove_unreachable_regions): Remove.
503         (convert_from_eh_region_ranges): Do not remove unreachable regions.
504         (find_exception_handler_labels): Don't build the hashtable.
505         (maybe_remove_eh_handler): Remove.
506         (for_each_eh_label): Rewrite to walk the tree.
507         (rest_of_handle_eh): Do not cleanup cfg prior EH construction.
508         * except.h (maybe_remove_eh_handler): Remove.
509         * passes.c (init_optimization_passes): Schedule second EH cleanup
510         before out-of-ssa.
511         * cfgrtl.c (rtl_delete_block, rtl_merge_blocks,
512         cfg_layout_merge_blocks): Do not call maybe_remove_eh_handler.
513
514 2009-04-08  Paolo Bonzini  <bonzini@gnu.org>
515
516         * genoutput.c (validate_optab_operands): New.
517         (gen_insn, gen_expand): Call it.
518
519         * genflags.c (gen_insn): Detect misused iterators.
520         (main): Pass line_no to gen_insn, exit with status 1 on error.
521
522         * genextract.c (line_no): Make global.
523         (VEC_safe_set_locstr): Change assertion to error message.
524         (main): Exit with status 1 on error.
525
526 2009-04-08  Joseph Myers  <joseph@codesourcery.com>
527
528         PR c/39614
529         PR c/39673
530         * c-common.h (C_MAYBE_CONST_EXPR_PRE, C_MAYBE_CONST_EXPR_EXPR,
531         C_MAYBE_CONST_EXPR_INT_OPERANDS, C_MAYBE_CONST_EXPR_NON_CONST,
532         EXPR_INT_CONST_OPERANDS): Remove duplicate definitions.
533         * c-convert.c (convert): Do not call fold on results of conversion
534         functions when the result is a C_MAYBE_CONST_EXPR.
535         * c-parser.c (c_parser_postfix_expression): Do not fold condition
536         of __builtin_choose_expr.
537         * c-typeck.c (remove_c_maybe_const_expr): New.
538         (build_unary_op, build_conditional_expr, build_compound_expr,
539         build_binary_op, c_objc_common_truthvalue_conversion): Call
540         remove_c_maybe_const_expr on any input C_MAYBE_CONST_EXPR with
541         integer operands.
542
543 2009-04-08 Bingfeng Mei <bmei@broadcom.com>
544
545         * fold-const.c (const_binop): Combine two VECTOR_CST under operation 
546         CODE to produce a new one. Add a prototype to use fold_convert_const
547
548 2009-04-08  Danny Smith  <dannysmith@users.sourceforge.net>
549
550         PR bootstrap/39660
551         * config/i386/host-mingw32.c (mingw32_gt_pch_use_address): Don't
552         mix declarations and code.
553
554 2009-04-08  Ben Elliston  <bje@au.ibm.com>
555
556         * gcc.c: Replace `CC' with `GCC' throughout.
557
558 2009-04-07  H.J. Lu  <hongjiu.lu@intel.com>
559
560         * doc/invoke.texi: Document Atom support.
561
562 2009-04-07  Jason Merrill  <jason@redhat.com>
563
564         PR c++/25185
565         * c-common.h, c-common.c: Add flag_pretty_templates.
566         * c-opts.c (c_common_handle_option): Set it.
567         * c.opt: Add -fno-pretty-templates.
568         * doc/invoke.texi (C++ Dialect Options): Likewise.
569
570 2009-04-07  Uros Bizjak  <ubizjak@gmail.com>
571
572         * config/ia64/ia64.c (ia64_builtins): Add IA64_BUILTIN_HUGE_VALQ.
573         (ia64_init_builtins): Handle IA64_BUILTIN_HUGE_VALQ.
574         (ia64_expand_builtin): Likewise.
575
576 2009-04-07  Martin Jambor  <mjambor@suse.cz>
577
578         * tree-ssa-alias.c (refs_may_alias_p_1): Check for
579         is_gimple_min_invariant rather than CONSTANT_CLASS_P so that invariant
580         ADDR_EXPRS are include too.
581
582 2009-04-07  Richard Guenther  <rguenther@suse.de>
583
584         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Non-aliased
585         decls are only used if passes as parameters or if they are
586         local statics and the call is not to a builtin.
587         (call_may_clobber_ref_p_1): Likewise.
588
589 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
590
591         * expr.c (do_store_flag): Remove last argument.  Simplify code
592         to avoid duplication of tests already done by can_compare_p.
593         (expand_expr_real_1): Adjust caller.
594
595 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
596
597         * optabs.c (can_compare_p): Test the predicate of a
598         cbranch and cstore pattern.
599
600 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
601
602         * expr.c (convert_move): Use emit_store_flag instead of
603         "emulating" it.
604
605 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
606
607         * config/i386/i386.c (ix86_compare_emitted): Remove.
608         (ix86_expand_compare, ix86_expand_branch): Handle MODE_CC
609         ix86_compare_op0 like ix86_compare_emitted used to be handled.
610         * config/i386/i386.h (ix86_compare_emitted): Remove.
611         * config/i386/i386.md (stack_protect_test): Set ix86_compare_op0
612         instead of ix86_compare_emitted.
613         * config/i386/sync.md (sync_compare_and_swap_cc): Likewise.
614
615 2009-04-07  Andrew Stubbs  <ams@codesourcery.com>
616
617         * config.gcc (sh-*-*): Add sysroot-suffix.h to tm_file.
618         Add t-sysroot-suffix to tmake_file.
619         * config/print-sysroot-suffix.sh: New file.
620         * config/t-sysroot-suffix: New file.
621
622 2009-04-07  Ben Elliston  <bje@au.ibm.com>
623
624         * libgcc2.c (INFINITY): Use __builtin_huge_val, not __builtin_inf,
625         as the latter produces a warning when the target does not support
626         infinity.
627
628 2009-04-07  Ben Elliston  <bje@au.ibm.com>
629
630         * dfp.c: Replace type punning assignments with memcpy throughout.
631         * Makefile.in (dfp.o-warn): Remove.
632         
633 2009-04-07  Alan Modra  <amodra@bigpond.net.au>
634
635         PR target/39634
636         * config.gcc: Merge powerpc-*-linux* and powerpc64-*-linux*.
637         Include soft-fp/t-softfp after rs6000/t-linux64.
638
639 2009-04-06  Eric Botcazou  <ebotcazou@adacore.com>
640
641         * stor-layout.c (set_sizetype): Use the full precision of their
642         machine mode for bitsize types.
643
644 2009-04-06  H.J. Lu  <hongjiu.lu@intel.com>
645
646         * config/i386/i386.md: Revert 2 accidental checkins.
647
648 2009-04-06  Joey Ye  <joey.ye@intel.com>
649             Xuepeng Guo <xuepeng.guo@intel.com>
650             H.J. Lu  <hongjiu.lu@intel.com>
651
652         Atom pipeline model, tuning and insn selection.
653         * config.gcc (atom): Add atom config options and target.
654
655         * config/i386/atom.md: New.
656
657         * config/i386/i386.c (atom_cost): New cost.
658         (m_ATOM): New macro flag.
659         (initial_ix86_tune_features): Set m_ATOM.
660         (x86_accumulate_outgoing_args): Likewise.
661         (x86_arch_always_fancy_math_387): Likewise.
662         (processor_target): Add Atom cost.
663         (cpu_names): Add Atom cpu name.
664         (override_options): Set Atom ISA.
665         (ix86_issue_rate): New case PROCESSOR_ATOM.
666         (ix86_adjust_cost): Likewise.
667
668         * config/i386/i386.h (TARGET_ATOM): New target macro.
669         (ix86_tune_indices): Add X86_TUNE_OPT_AGU.
670         (TARGET_OPT_AGU): New target option.
671         (target_cpu_default): Add TARGET_CPU_DEFAULT_atom.
672         (processor_type): Add PROCESSOR_ATOM.
673
674         * config/i386/i386.md (cpu): Add new value "atom".
675         (use_carry, movu): New attr.
676         (atom.md): Include atom.md.
677         (adddi3_carry_rex64): Set attr "use_carry".
678         (addqi3_carry): Likewise.
679         (addhi3_carry): Likewise.
680         (addsi3_carry): Likewise.
681         (*addsi3_carry_zext): Likewise.
682         (subdi3_carry_rex64): Likewise.
683         (subqi3_carry): Likewise.
684         (subhi3_carry): Likewise.
685         (subsi3_carry): Likewise.
686         (x86_movdicc_0_m1_rex64): Likewise.
687         (*x86_movdicc_0_m1_se): Likewise.
688         (x86_movsicc_0_m1): Likewise.
689         (*x86_movsicc_0_m1_se): Likewise.
690         (*adddi_1_rex64): Emit add insn as much as possible.
691         (*addsi_1): Likewise.
692         (return_internal): Set atom_unit.
693         (return_internal_long): Likewise.
694         (return_pop_internal): Likewise.
695         (*rcpsf2_sse): Set atom_sse_attr attr.
696         (*qrt<mode>2_sse): Likewise.
697         (*prefetch_sse): Likewise.
698
699         * config/i386/i386-c.c (ix86_target_macros_internal): New case
700         PROCESSOR_ATOM.
701         (ix86_target_macros_internal): Likewise.
702
703         * config/i386/sse.md (cpu): Set attr "atom_sse_attr".
704         (*prefetch_sse_rex): Likewise.
705         (sse_rcpv4sf2): Likewise.
706         (sse_vmrcpv4sf2): Likewise.
707         (sse_sqrtv4sf2): Likewise.
708         (<sse>_vmsqrt<mode>2): Likewise.
709         (sse_ldmxcsr): Likewise.
710         (sse_stmxcsr): Likewise.
711         (*sse_sfence): Likewise.
712         (sse2_clflush): Likewise.
713         (*sse2_mfence): Likewise.
714         (*sse2_lfence): Likewise.
715         (avx_movup<avxmodesuffixf2c><avxmodesuffix>): Set attr "movu".
716         (<sse>_movup<ssemodesuffixf2c>): Likewise.
717         (avx_movdqu<avxmodesuffix>): Likewise.
718         (avx_lddqu<avxmodesuffix>): Likewise.
719         (sse2_movntv2di): Change attr "type" to "ssemov".
720         (sse2_movntsi): Likewise.
721         (rsqrtv8sf2): Change attr "type" to "sseadd".
722         (sse3_addsubv2df3): Set attr "atom_unit".
723         (sse3_h<plusminus_insn>v4sf3): Likewise.
724         (*sse2_pmaddwd): Likewise.
725         (*vec_extractv2di_1_rex64): Likewise.
726         (*vec_extractv2di_1_avx): Likewise.
727         (sse2_psadbw): Likewise.
728         (ssse3_phaddwv8hi3): Likewise.
729         (ssse3_phaddwv4hi3): Likewise.
730         (ssse3_phadddv4si3): Likewise.
731         (ssse3_phadddv2si3): Likewise.
732         (ssse3_phaddswv8hi3): Likewise.
733         (ssse3_phaddswv4hi3): Likewise.
734         (ssse3_phsubwv8hi3): Likewise.
735         (ssse3_phsubwv4hi3): Likewise.
736         (ssse3_phsubdv4si3): Likewise.
737         (ssse3_phsubdv2si3): Likewise.
738         (ssse3_phsubswv8hi3): Likewise.
739         (ssse3_phsubswv4hi3): Likewise.
740         (ssse3_pmaddubsw128): Likewise.
741         (sse3_pmaddubsw: Likewise.
742         (ssse3_palignrti): Likewise.
743         (ssse3_palignrdi): Likewise.
744
745 2009-04-06  Gerald Pfeifer  <gerald@pfeifer.com>
746
747         * doc/install.texi (Specific): Fix two cross-references to MinGW.
748
749 2009-04-06  Richard Guenther  <rguenther@suse.de>
750
751         PR tree-optimization/28868
752         * tree-ssa-pre.c (inserted_phi_names): New bitmap to keep track
753         of which PHI results we inserted.
754         (insert_into_preds_of_block): Record inserted PHIs.
755         (eliminate): Eliminate redundant PHI nodes.
756         (init_pre): Init inserted_phi_names.
757
758 2009-04-06  Richard Guenther  <rguenther@suse.de>
759
760         PR tree-optimization/39643
761         * tree-ssa-ccp.c (ccp_fold): Fold REALPART_EXPRs and
762         IMAGPART_EXPRs of complex constants.
763         (execute_fold_all_builtins): If we folded a call queue
764         TODO_update_address_taken.
765
766 2009-04-06  Jan Hubicka  <jh@suse.cz>
767
768         PR middle-end/39659
769         * except.c (remove_unreachable_regions): Propagate may_contain_throw
770         flag.
771
772 2009-04-06  Andrew Stubbs  <ams@codesourcery.com>
773
774         * config/sh/lib1funcs.asm (ic_invalidate): Move ICBI out of the
775         delay slot.
776         (ic_invalidate_array): Likewise.
777
778 2009-04-06  Hariharan Sandanagobalane <hariharan@picochip.com>
779
780         * calls.c (emit_library_call_value_1): Fix a problem with parameter
781         alignment for library calls.
782
783 2009-04-06  Danny Smith  <dannysmith@users.sourceforge.net>
784
785         * config.gcc (mingw32 tm_file):  Add mingw-stdint.h.
786         (mingw32 tm clause use_gcc_stdint):  Set to wrap.
787         * config/i386/mingw-stdint.h:  New file.
788
789 2009-04-05  Richard Guenther  <rguenther@suse.de>
790
791         PR tree-optimization/39648
792         * tree-ssa-sccvn.c (vn_reference_fold_indirect): Work around
793         our &A vs. &A[0] IL deficiencies.
794
795 2009-04-04  Jan Hubicka  <jh@suse.cz>
796
797         * except.c (sjlj_find_directly_reachable_regions): Be ready for
798         removed toplevel regions.
799         (sjlj_mark_call_sites): Likewise.
800
801 2009-04-04  Dave Korn  <dave.korn.cygwin@gmail.com>
802
803         * config.gcc (cygwin tm_file):  Add cygwin-stdint.h.
804         (cygwin tm clause use_gcc_stdint):  Set to wrap.
805         * config/i386/cygwin-stdint.h:  New file.
806
807 2009-04-04  Richard Guenther  <rguenther@suse.de>
808
809         * Makefile.in (tree-ssa-copy.o): Add $(CFGLOOP_H) dependency.
810         * tree-ssa-copy.c (init_copy_prop): Do not propagate through
811         single-argument PHIs if we are in loop-closed SSA form.
812         * tree-vect-loop-manip.c (slpeel_add_loop_guard): Pass extra guards
813         for the pre-condition.
814         (slpeel_tree_peel_loop_to_edge): Likewise.
815         (vect_build_loop_niters): Take an optional sequence to append stmts.
816         (vect_generate_tmps_on_preheader): Likewise.
817         (vect_do_peeling_for_loop_bound): Take extra guards for the
818         pre-condition.
819         (vect_do_peeling_for_alignment): Adjust.  Unconditionally apply
820         the cost model check.
821         (vect_loop_versioning): Take stmt and stmt list to put pre-condition
822         guards if we are going to peel.  Do not apply versioning in that
823         case.
824         * tree-vectorizer.h (vect_loop_versioning): Adjust declaration.
825         (vect_do_peeling_for_loop_bound): Likewise.
826         * tree-vect-loop.c (vect_transform_loop): If we are peeling for
827         loop bound only record extra pre-conditions, do not apply loop
828         versioning.
829
830 2009-04-04  Richard Guenther  <rguenther@suse.de>
831
832         * tree-ssa-operands.c (pop_stmt_changes): Remove automatic
833         renaming code.
834
835 2009-04-04  Jan Hubicka  <jh@suse.cz>
836
837         * tree-ssa-uncprop.c (associate_equivalences_with_edges): Use
838         last_basic_block for size of bb->index indexed array.
839         * bt-load.c (compute_defs_uses_and_gen, compute_kill,
840         compute_out, link_btr_uses, build_btr_def_use_webs,
841         build_btr_def_use_webs, migrate_btr_defs): Likewise.
842
843 2009-04-04  Jan Hubicka  <jh@suse.cz>
844
845         * except.c (remove_eh_handler_and_replace): Break out from ...
846         (remove_eh_handler): ... here.
847         (bring_to_root): New function.
848         (remove_unreachable_regions): Collect MUST_NOT_THROW, unify runtime
849         handled ones, bring others to root of tree.
850
851 2009-04-04  Jan Hubicka  <jh@suse.cz>
852
853         * tree-eh.c (tree_empty_eh_handler_p): Pattern match more curefully.
854         (all_phis_safe_to_merge): New function.
855         (update_info): New structure.
856         (make_eh_edge_and_update_phi, update_eh_edges): New functions.
857         (cleanup_empty_eh): Update SSA if possible.
858
859 2009-04-04  Richard Guenther  <rguenther@suse.de>
860
861         * tree-ssa.c (verify_ssa): With -O0 we do not need VOPs.
862         * tree-ssa-operands.c (append_vdef): Do not append VOPs at -O0.
863         (append_vuse): Likewise.
864
865 2009-04-04  Jakub Jelinek  <jakub@redhat.com>
866
867         * unwind-dw2.h (_Unwind_FrameState): Add REG_UNDEFINED enum value.
868         * unwind-dw2.c (execute_cfa_program): Set how to REG_UNDEFINED
869         instead of REG_UNSAVED for DW_CFA_undefined.
870         (uw_update_context_1): Handle REG_UNDEFINED the same as REG_UNSAVED.
871         (uw_update_context): If RA column is REG_UNDEFINED, mark it as
872         outermost frame.
873
874 2009-04-04  Richard Earnshaw  <rearnsha@arm.com>
875
876         PR target/39501
877         * arm.md (movsfcc): Disable if not TARGET_HARD_FLOAT.
878         * testsuite/gcc.c-torture/execute/pr39501.c: New file.
879         * testsuite/gcc.c-torture/execute/pr39501.x: New file.
880
881 2009-04-04  Richard Guenther  <rguenther@suse.de>
882
883         PR tree-optimization/8781
884         PR tree-optimization/37892
885         * tree-ssa-sccvn.h (vn_reference_fold_indirect): Declare.
886         * tree-ssa-sccvn.c (vn_reference_fold_indirect): New function.
887         (valueize_refs): Call it for *& valueizations.
888         (shared_reference_ops_from_ref): Rename to ...
889         (valueize_shared_reference_ops_from_ref): ... this and valueize.
890         (shared_reference_ops_from_call): Rename to ...
891         (valueize_shared_reference_ops_from_call): ... this and valueize.
892         (vn_reference_lookup): Update.
893         (visit_reference_op_call): Likewise.
894         * tree-ssa-pre.c (phi_translate_1): Fold *&.
895         (eliminate): Value-replace the call address in call statements.
896
897 2009-04-04  Richard Guenther  <rguenther@suse.de>
898
899         PR tree-optimization/39636
900         * tree-ssa-forwprop.c
901         (forward_propagate_addr_into_variable_array_index): Check for
902         GIMPLE_ASSIGN before accessing the rhs code.
903
904 2009-04-03  Jason Merrill  <jason@redhat.com>
905
906         * stor-layout.c (set_sizetype): Set TYPE_CANONICAL.
907
908 2009-04-03  Steve Ellcey  <sje@cup.hp.com>
909
910         * config/ia64/ia64.md (extendsfdf2, extendsfxf2, extenddfxf2,
911         truncdfsf2, truncxfsf2, truncxfdf2, floatdixf2, fix_truncsfdi2,
912         fix_truncdfdi2, fix_truncxfdi2, fix_truncxfdi2_alts, floatunsdisf2,
913         floatunsdidf2, floatunsdixf2, fixuns_truncsfdi2, fixuns_truncdfdi2,
914         fixuns_truncxfdi2, fixuns_truncxfdi2_alts, divsi3_internal,
915         smuldi3_highpart, umuldi3_highpart, ctzdi2, *getf_exp_xf,
916         divdi3_internal_lat, divdi3_internal_thr, mulditi3, *mulditi3_internal,
917         umulditi3, *umulditi3_internal, addsf3, mulsf3, abssf2, negsf2,
918         *nabssf2, sminsf3, smaxsf3, *maddsf4, *msubsf4, *nmulsf3, *nmaddsf4,
919         *nmaddsf4_alts, divsf3, *sqrt_approx, sqrtsf2, sqrtsf2_internal_thr,
920         adddf3, *adddf3_trunc, muldf3, *muldf3_trunc, absdf2, negdf2, *nabsdf2,
921         smindf3, smaxdf3, *madddf4, *madddf4_trunc, *msubdf4, *msubdf4_trunc,
922         *nmuldf3, *nmuldf3_trunc, *nmadddf4, *nmadddf4_alts, *nmadddf4_truncsf,
923         *nmadddf4_truncsf_alts, divdf3, sqrtdf2, sqrtdf2_internal_thr, divxf3,
924         sqrtxf2, sqrtxf2_internal_thr, *recip_approx):
925         Use fr_reg_or_fp01_operand instead of fr_register_operand
926
927         * config/ia64/div.md (extend<mode>rf2, truncrf<mode>2,
928         recip_approx_rf, divsf3_internal_thr, divsf3_internal_lat,
929         divdf3_internal_thr, divdf3_internal_lat divxf3_internal): Ditto.
930
931 2009-04-03  Vladimir Makarov  <vmakarov@redhat.com>
932
933         PR rtl-optimization/39607
934         PR rtl-optimization/39631
935         Revert
936         2009-03-30  Vladimir Makarov  <vmakarov@redhat.com>
937         * reload.c (push_reload, find_dummy_reload): Use df_get_live_out
938         instead of DF_LR_OUT.
939         * ira-lives.c (process_bb_node_lives): Ditto.
940         * ira-color.c (ira_loop_edge_freq): Use df_get_live_{out,in}
941         instead of DF_LR_{OUT,IN}.
942         * ira-emit.c (generate_edge_moves, add_ranges_and_copies): Ditto.
943         * ira-build.c (create_bb_allocnos, create_loop_allocnos): Ditto.
944
945 2009-04-03  Steven Bosscher  <steven@gcc.gnu.org>
946
947         * omp-low.c (pass_expand_omp): Don't claim to provide PROP_gimple_lomp.
948         (execute_lower_omp): Always run but take the short way out if -fopenmp
949         is not given.
950         (gate_lower_omp): Remove, forcing the pass manager to always run the
951         pass and always set PROP_gimple_lomp.
952         (pass_lower_omp): Remove gate function.
953         * matrix-reorg.c (pass_ipa_matrix_reorg): Don't claim to provide
954         PROP_trees.  Instead, require it.
955         * ipa-cp.c (pass_ipa_cp): Likewise.
956         * ipa-inline.c (pass_early_inline): Don't claim to provide PROP_cfg.
957         (pass_ipa_early_inline, pass_inline_parameters, pass_ipa_inline): Idem.
958         * tree-profile.c (pass_tree_profile): Don't claim to provide PROP_cfg
959         and PROP_gimple_leh.
960
961 2009-04-03  Richard Guenther  <rguenther@suse.de>
962
963         PR middle-end/13146
964         PR tree-optimization/23940
965         PR tree-optimization/33237
966         PR middle-end/33974
967         PR middle-end/34093
968         PR tree-optimization/36201
969         PR tree-optimization/36230
970         PR tree-optimization/38049
971         PR tree-optimization/38207
972         PR tree-optimization/38230
973         PR tree-optimization/38301
974         PR tree-optimization/38585
975         PR middle-end/38895
976         PR tree-optimization/38985
977         PR tree-optimization/39299
978         * tree-ssa-structalias.h: Remove.
979         * tree-ssa-operands.h (NULL_USE_OPERAND_P): Make of type use_operand_p.
980         (NULL_DEF_OPERAND_P): Make of type def_operand_p.
981         (struct vuse_element_d): Remove.
982         (struct vuse_vec_d): Likewise.
983         (VUSE_VECT_NUM_ELEM, VUSE_VECT_ELEMENT_NC, VUSE_ELEMENT_PTR_NC,
984         VUSE_ELEMENT_VAR_NC, VUSE_VECT_ELEMENT, VUSE_ELEMENT_PTR,
985         SET_VUSE_VECT_ELEMENT, SET_VUSE_ELEMENT_VAR, SET_VUSE_ELEMENT_PTR,
986         VUSE_ELEMENT_VAR): Likewise.
987         (struct voptype_d): Likewise.
988         (NUM_VOP_FREE_BUCKETS): Likewise.
989         (struct ssa_operands): Remove vop_free_buckets and mpt_table fields.
990         (struct stmt_operands_d): Remove.
991         (VUSE_OP_PTR, VUSE_OP, SET_VUSE_OP, VUSE_NUM, VUSE_VECT,
992         VDEF_RESULT_PTR, VDEF_RESULT, VDEF_OP_PTR, VDEF_OP, SET_VDEF_OP,
993         VDEF_NUM, VDEF_VECT): Likewise.
994         (copy_virtual_operands): Remove.
995         (operand_build_cmp): Likewise.
996         (create_ssa_artificial_load_stmt): Likewise.
997         (enum ssa_op_iter_type): Remove ssa_op_iter_vdef.
998         (struct ssa_operand_iterator_d): Remove vuses, vdefs, mayusesm
999         vuse_index and mayuse_index members.  Pack and move done and iter_type
1000         members to the front.
1001         (SSA_OP_VMAYUSE): Remove.
1002         (SSA_OP_VIRTUAL_USES): Adjust.
1003         (FOR_EACH_SSA_VDEF_OPERAND): Remove.
1004         (unlink_stmt_vdef): Declare.
1005         (add_to_addressable_set): Remove.
1006         * tree-vrp.c (stmt_interesting_for_vrp): Adjust.
1007         (vrp_visit_stmt): Likewise.
1008         * doc/tree-ssa.texi (Alias analysis): Update.
1009         * doc/invoke.texi (max-aliased-vops): Remove docs.
1010         (avg-aliased-vops): Likewise.
1011         * tree-into-ssa.c (syms_to_rename): Remove.
1012         (need_to_update_vops_p): Likewise.
1013         (need_to_initialize_update_ssa_p): Rename to ...
1014         (update_ssa_initialized_fn): ... this.  Track function we are
1015         initialized for.
1016         (symbol_marked_for_renaming): Simplify.
1017         (add_new_name_mapping): Do not set need_to_update_vops_p.
1018         (dump_currdefs): Use SYMS_TO_RENAME.
1019         (rewrite_update_stmt): Always walk all uses/defs.
1020         (dump_update_ssa): Adjust.
1021         (init_update_ssa): Take function argument.  Track what we are
1022         initialized for.
1023         (delete_update_ssa): Reset SYMS_TO_RENAME and update_ssa_initialized_fn.
1024         (create_new_def_for): Initialize for cfun, assert we are initialized
1025         for cfun.
1026         (mark_sym_for_renaming): Simplify.
1027         (mark_set_for_renaming): Do not initialize update-ssa.
1028         (need_ssa_update_p): Simplify.  Take function argument.
1029         (name_mappings_registered_p): Assert we ask for the correct function.
1030         (name_registered_for_update_p): Likewise.
1031         (ssa_names_to_replace): Likewise.
1032         (release_ssa_name_after_update_ssa): Likewise.
1033         (update_ssa): Likewise.  Use SYMS_TO_RENAME.
1034         (dump_decl_set): Do not print a newline.
1035         (debug_decl_set): Do it here.
1036         (dump_update_ssa): And here.
1037         * tree-ssa-loop-im.c (move_computations): Adjust.
1038         (movement_possibility): Likewise.
1039         (determine_max_movement): Likewise.
1040         (gather_mem_refs_stmt): Likewise.
1041         * tree-dump.c (dequeue_and_dump): Do not handle SYMBOL_MEMORY_TAG
1042         or NAME_MEMORY_TAG.
1043         * tree-complex.c (update_all_vops): Remove.
1044         (expand_complex_move): Adjust.
1045         * tree-ssa-loop-niter.c (chain_of_csts_start): Use NULL_TREE.
1046         Simplify test for memory referencing statement.  Exclude
1047         non-invariant ADDR_EXPRs.
1048         * tree-pretty-print.c (dump_generic_node): Do not handle memory tags.
1049         * tree-loop-distribution.c (generate_memset_zero): Adjust.
1050         (rdg_flag_uses): Likewise.
1051         * tree-tailcall.c (suitable_for_tail_opt_p): Remove memory-tag
1052         related code.
1053         (tree_optimize_tail_calls_1): Also split the
1054         edge from the entry block if we have degenerate PHI nodes in
1055         the first basic block.
1056         * tree.c (init_ttree): Remove memory-tag related code.
1057         (tree_code_size): Likewise.
1058         (tree_node_structure): Likewise.
1059         (build7_stat): Re-write to be build6_stat.
1060         * tree.h (MTAG_P, TREE_MEMORY_TAG_CHECK, TMR_TAG): Remove.
1061         (SSA_VAR_P): Adjust.
1062         (struct tree_memory_tag): Remove.
1063         (struct tree_memory_partition_tag): Likewise.
1064         (union tree_node): Adjust.
1065         (build7): Re-write to be build6.
1066         * tree-pass.h (pass_reset_cc_flags): Remove.
1067         (TODO_update_address_taken): New flag.
1068         (pass_simple_dse): Remove.
1069         * ipa-cp.c (ipcp_update_callgraph): Update SSA form.
1070         * params.h (MAX_ALIASED_VOPS): Remove.
1071         (AVG_ALIASED_VOPS): Likewise.
1072         * omp-low.c (expand_omp_taskreg): Update SSA form.
1073         * tree-ssa-dse.c (dse_optimize_stmt): Properly query if the rhs
1074         aliases the lhs in a copy stmt.
1075         * tree-ssa-dse.c (struct address_walk_data): Remove.
1076         (memory_ssa_name_same): Likewise.
1077         (memory_address_same): Likewise.
1078         (get_kill_of_stmt_lhs): Likewise.
1079         (dse_possible_dead_store_p): Simplify, use the oracle.  Handle
1080         unused stores.  Look through PHI nodes into post-dominated regions.
1081         (dse_optimize_stmt): Simplify.  Properly remove stores.
1082         (tree_ssa_dse): Compute dominators.
1083         (execute_simple_dse): Remove.
1084         (pass_simple_dse): Likewise.
1085         * ipa-reference.c (scan_stmt_for_static_refs): Open-code
1086         gimple_loaded_syms and gimple_stored_syms computation.
1087         * toplev.c (dump_memory_report): Dump alias and pta stats.
1088         * tree-ssa-sccvn.c (vn_reference_compute_hash): Simplify.
1089         (vn_reference_eq): Likewise.
1090         (vuses_to_vec, copy_vuses_from_stmt, vdefs_to_vec,
1091         copy_vdefs_from_stmt, shared_lookup_vops, shared_vuses_from_stmt,
1092         valueize_vuses): Remove.
1093         (get_def_ref_stmt_vuses): Simplify.  Rename to ...
1094         (get_def_ref_stmt_vuse): ... this.
1095         (vn_reference_lookup_2): New function.
1096         (vn_reference_lookup_pieces): Use walk_non_aliased_vuses for
1097         walking equivalent vuses.  Simplify.
1098         (vn_reference_lookup): Likewise.
1099         (vn_reference_insert): Likewise.
1100         (vn_reference_insert_pieces): Likewise.
1101         (visit_reference_op_call): Simplify.
1102         (visit_reference_op_load): Likewise.
1103         (visit_reference_op_store): Likewise.
1104         (init_scc_vn): Remove shared_lookup_vuses initialization.
1105         (free_scc_vn): Remove shared_lookup_vuses freeing.
1106         (sort_vuses, sort_vuses_heap): Remove.
1107         (get_ref_from_reference_ops): Export.
1108         * tree-ssa-sccvn.h (struct vn_reference_s): Replace vuses
1109         vector with single vuse pointer.
1110         (vn_reference_lookup_pieces, vn_reference_lookup,
1111         vn_reference_insert, vn_reference_insert_pieces): Adjust prototypes.
1112         (shared_vuses_from_stmt): Remove.
1113         (get_ref_from_reference_ops): Declare.
1114         * tree-ssa-loop-manip.c (slpeel_can_duplicate_loop_p): Adjust.
1115         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Remove
1116         memory-tag related code.
1117         * tree-ssa-ccp.c (get_symbol_constant_value): Remove memory-tag code.
1118         (likely_value): Add comment, skip static-chain of call statements.
1119         (surely_varying_stmt_p): Adjust.
1120         (gimplify_and_update_call_from_tree): Likewise.
1121         (execute_fold_all_builtins): Do not rebuild alias info.
1122         (gimplify_and_update_call_from_tree): Properly update VOPs.
1123         * tree-ssa-loop-ivopts.c (get_ref_tag): Remove.
1124         (copy_ref_info): Remove memory-tag related code.
1125         * tree-call-cdce.c (tree_call_cdce): Rename the VOP.
1126         * ipa-pure-const.c (check_decl): Remove memory-tag related code.
1127         (check_stmt): Open-code gimple_loaded_syms and gimple_stored_syms
1128         computation.
1129         * tree-ssa-dom.c (gimple_p): Remove typedef.
1130         (eliminate_redundant_computations): Adjust.
1131         (record_equivalences_from_stmt): Likewise.
1132         (avail_expr_hash): Likewise.
1133         (avail_expr_eq): Likewise.
1134         * tree-ssa-propagate.c (update_call_from_tree): Properly
1135         update VOPs.
1136         (stmt_makes_single_load): Likewise.
1137         (stmt_makes_single_store): Likewise.
1138         * tree-ssa-alias.c: Rewrite completely.
1139         (debug_memory_partitions, dump_mem_ref_stats, debug_mem_ref_stats,
1140         debug_mem_sym_stats, dump_mem_sym_stats_for_var,
1141         debug_all_mem_sym_stats, debug_mp_info, update_mem_sym_stats_from_stmt,
1142         delete_mem_ref_stats, create_tag_raw, dump_points_to_info,
1143         dump_may_aliases_for, debug_may_aliases_for, new_type_alias):
1144         Remove public functions.
1145         (pass_reset_cc_flags): Remove.
1146         (pass_build_alias): Move ...
1147         * tree-ssa-structalias.c (pass_build_alias): ... here.
1148         * tree-ssa-alias.c (may_be_aliased): Move ...
1149         * tree-flow-inline.h (may_be_aliased): ... here.
1150         tree-ssa-alias.c (struct count_ptr_d, count_ptr_derefs,
1151         count_uses_and_derefs): Move ...
1152         * gimple.c: ... here.
1153         * gimple.h (count_uses_and_derefs): Declare.
1154         * tree-ssa-alias.c (dump_alias_stats, ptr_deref_may_alias_global_p,
1155         ptr_deref_may_alias_decl_p, ptr_derefs_may_alias_p,
1156         same_type_for_tbaa, nonaliasing_component_refs_p, decl_refs_may_alias_p,
1157         indirect_ref_may_alias_decl_p, indirect_refs_may_alias_p,
1158         ref_maybe_used_by_call_p, ref_maybe_used_by_stmt_p,
1159         call_may_clobber_ref_p, stmt_may_clobber_ref_p, maybe_skip_until,
1160         get_continuation_for_phi, walk_non_aliased_vuses, walk_aliased_vdefs):
1161         New functions.
1162         * tree-dfa.c (refs_may_alias_p): Move ...
1163         * tree-ssa-alias.c (refs_may_alias_p): ... here.  Extend.
1164         * tree-ssa-alias.h: New file.
1165         * tree-ssa-sink.c (is_hidden_global_store): Adjust.
1166         (statement_sink_location): Likewise.
1167         * opts.c (decode_options): Do not adjust max-aliased-vops or
1168         avg-aliased-vops values.
1169         * timevar.def (TV_TREE_MAY_ALIAS): Remove.
1170         (TV_CALL_CLOBBER): Likewise.
1171         (TV_FLOW_SENSITIVE): Likewise.
1172         (TV_FLOW_INSENSITIVE): Likewise.
1173         (TV_MEMORY_PARTITIONING): Likewise.
1174         (TV_ALIAS_STMT_WALK): New timevar.
1175         * tree-ssa-loop-ivcanon.c (empty_loop_p): Adjust.
1176         * tree-ssa-address.c (create_mem_ref_raw): Use build6.
1177         (get_address_description): Remove memory-tag related code.
1178         * tree-ssa-ifcombine.c (bb_no_side_effects_p): Adjust.
1179         * treestruct.def (TS_MEMORY_TAG, TS_MEMORY_PARTITION_TAG): Remove.
1180         * tree-eh.c (cleanup_empty_eh): Do not leave stale SSA_NAMEs
1181         and immediate uses in statements.  Document.
1182         * gimple-pretty-print.c (dump_gimple_mem_ops): Adjust.
1183         (dump_symbols): Remove.
1184         (dump_gimple_mem_ops): Do not dump loaded or stored syms.
1185         * alias.c (get_deref_alias_set): New function split out from ...
1186         (get_alias_set): ... here.
1187         * alias.h (get_deref_alias_set): Declare.
1188         * tree-vect-data-refs.c (vect_create_data_ref_ptr): Remove unused
1189         type parameter.  Remove restrict pointer handling.  Create a
1190         ref-all pointer in case type-based alias sets do not conflict.
1191         (vect_analyze_data_refs): Remove SMT related code.
1192         * tree-vect-stmts.c (vectorizable_store): Re-instantiate TBAA assert.
1193         (vectorizable_load): Likewise.
1194         * tree-data-ref.h (struct dr_alias): Remove symbol_tag field.
1195         (DR_SYMBOL_TAG, DR_VOPS): Remove.
1196         * tree-data-ref.c (dr_may_alias_p): Use the alias-oracle.
1197         Ignore vops and SMTs.
1198         (dr_analyze_alias): Likewise..
1199         (free_data_ref): Likewise.
1200         (create_data_ref): Likewise.
1201         (analyze_all_data_dependences): Likewise.
1202         (get_references_in_stmt): Adjust.
1203         * tree-flow-inline.h (gimple_aliases_computed_p,
1204         gimple_addressable_vars, gimple_call_clobbered_vars,
1205         gimple_call_used_vars, gimple_global_var, may_aliases, memory_partition,
1206         factoring_name_p, mark_call_clobbered, clear_call_clobbered,
1207         compare_ssa_operands_equal, symbol_mem_tag, set_symbol_mem_tag,
1208         gimple_mem_ref_stats): Remove.
1209         (gimple_vop): New function.
1210         (op_iter_next_use): Remove vuses and mayuses cases.
1211         (op_iter_next_def): Remove vdefs case.
1212         (op_iter_next_tree): Remove vuses, mayuses and vdefs cases.
1213         (clear_and_done_ssa_iter): Do not set removed fields.
1214         (op_iter_init): Likewise.  Skip vuse and/or vdef if requested.
1215         Assert we are not iterating over vuses or vdefs if not also
1216         iterating over uses or defs.
1217         (op_iter_init_use): Likewise.
1218         (op_iter_init_def): Likewise.
1219         (op_iter_next_vdef): Remove.
1220         (op_iter_next_mustdef): Likewise.
1221         (op_iter_init_vdef): Likewise.
1222         (compare_ssa_operands_equal): Likewise.
1223         (link_use_stmts_after): Handle vuse operand.
1224         (is_call_used): Use is_call_clobbered.
1225         (is_call_clobbered): Global variables are always call clobbered,
1226         query the call-clobbers bitmap.
1227         (mark_call_clobbered): Ignore global variables.
1228         (clear_call_clobbered): Likewise.
1229         * tree-ssa-coalesce.c (create_outofssa_var_map): Adjust
1230         virtual operands sanity check.
1231         * tree.def (NAME_MEMORY_TAG, SYMBOL_MEMORY_TAG, MEMORY_PARTITION_TAG):
1232         Remove.
1233         (TARGET_MEM_REF): Remove TMR_TAG operand.
1234         * tree-dfa.c (add_referenced_var): Initialize call-clobber state.
1235         Remove call-clobber related code.
1236         (remove_referenced_var): Likewise.  Do not clear mpt or symbol_mem_tag.
1237         (dump_variable): Do not dump SMTs, memory stats, may-aliases or
1238         partitions or escape reason.
1239         (get_single_def_stmt, get_single_def_stmt_from_phi,
1240         get_single_def_stmt_with_phi): Remove.
1241         (dump_referenced_vars): Tidy.
1242         (get_ref_base_and_extent): Allow bare decls.
1243         (collect_dfa_stats): Adjust.
1244         * graphite.c (rename_variables_in_stmt): Adjust.
1245         (graphite_copy_stmts_from_block): Likewise.
1246         (translate_clast): Likewise.
1247         * tree-ssa-pre.c (struct bb_bitmap_sets): Add expr_dies bitmap.
1248         (EXPR_DIES): New.
1249         (translate_vuse_through_block): Use the oracle.
1250         (phi_translate_1): Adjust.
1251         (value_dies_in_block_x): Use the oracle.  Cache the outcome
1252         in EXPR_DIES.
1253         (valid_in_sets): Check if the VUSE for
1254         a REFERENCE is available.
1255         (eliminate): Do not remove stmts during elimination,
1256         instead queue and remove them afterwards.
1257         (do_pre): Do not rebuild alias info.
1258         (pass_pre): Run TODO_rebuild_alias before PRE.
1259         * tree-ssa-live.c (remove_unused_locals): Remove memory-tag code.
1260         * tree-sra.c (sra_walk_function): Use gimple_references_memory_p.
1261         (mark_all_v_defs_stmt): Remove.
1262         (mark_all_v_defs_seq): Adjust.
1263         (sra_replace): Likewise.
1264         (scalarize_use): Likewise.
1265         (scalarize_copy): Likewise.
1266         (scalarize_init): Likewise.
1267         (scalarize_ldst): Likewise.
1268         (todoflags): Remove.
1269         (tree_sra): Do not rebuild alias info.
1270         (tree_sra_early): Adjust.
1271         (pass_sra): Run TODO_update_address_taken before SRA.
1272         * tree-predcom.c (set_alias_info): Remove.
1273         (prepare_initializers_chain): Do not call it.
1274         (mark_virtual_ops_for_renaming): Adjust.
1275         (mark_virtual_ops_for_renaming_list): Remove.
1276         (initialize_root_vars): Adjust.
1277         (initialize_root_vars_lm): Likewise.
1278         (prepare_initializers_chain): Likewise.
1279         * tree-ssa-copy.c (may_propagate_copy): Remove memory-tag related code.
1280         (may_propagate_copy_into_stmt): Likewise.
1281         (merge_alias_info): Do nothing for now.
1282         (propagate_tree_value_into_stmt): Adjust.
1283         (stmt_may_generate_copy): Likewise.
1284         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr): Do
1285         not mark symbols for renaming.
1286         (forward_propagate_addr_expr): Match up push/pop_stmt_changes
1287         with the same statement, make sure to update the new pointed-to one.
1288         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not copy
1289         call statements, do not mark symbols for renaming.
1290         (mark_operand_necessary): Dump something.
1291         (ref_may_be_aliased): New function.
1292         (mark_aliased_reaching_defs_necessary_1): New helper function.
1293         (mark_aliased_reaching_defs_necessary): Likewise.
1294         (mark_all_reaching_defs_necessary_1): Likewise.
1295         (mark_all_reaching_defs_necessary): Likewise.
1296         (propagate_necessity): Do not process virtual PHIs.  For
1297         non-aliased loads mark all reaching definitions as necessary.
1298         For aliased loads and stores mark the immediate dominating
1299         aliased clobbers as necessary.
1300         (visited): New global static.
1301         (perform_tree_ssa_dce): Free visited bitmap after propagating
1302         necessity.
1303         (remove_dead_phis): Perform simple dead virtual PHI removal.
1304         (remove_dead_stmt): Properly unlink virtual operands when
1305         removing stores.
1306         (eliminate_unnecessary_stmts): Schedule PHI removal after
1307         stmt removal.
1308         * tree-ssa-ter.c (is_replaceable_p): Adjust.
1309         (process_replaceable): Likewise.
1310         (find_replaceable_in_bb): Likewise.
1311         * tree-ssa.c (verify_ssa_name): Verify all VOPs are
1312         based on the single gimple vop.
1313         (verify_flow_insensitive_alias_info): Remove.
1314         (verify_flow_sensitive_alias_info): Likewise.
1315         (verify_call_clobbering): Likewise.
1316         (verify_memory_partitions): Likewise.
1317         (verify_alias_info): Likewise.
1318         (verify_ssa): Adjust..
1319         (execute_update_addresses_taken): Export.  Update SSA
1320         manually.  Optimize only when optimizing.  Use a local bitmap.
1321         (pass_update_address_taken): Remove TODO_update_ssa, add
1322         TODO_dump_func.
1323         (pass_update_address_taken): Just use TODO_update_address_taken.
1324         (init_tree_ssa): Do not initialize addressable_vars.
1325         (verify_ssa): Verify new VUSE / VDEF properties.
1326         Verify that all stmts definitions have the stmt as SSA_NAME_DEF_STMT.
1327         Do not call verify_alias_info.
1328         (delete_tree_ssa): Clear the VUSE, VDEF operands.
1329         Do not free the loaded and stored syms bitmaps.  Reset the escaped
1330         and callused solutions.  Do not free addressable_vars.
1331         Remove memory-tag related code.
1332         (warn_uninitialized_var): Aliases are always available.
1333         * tree-ssa-loop-prefetch.c (gather_memory_references): Adjust.
1334         * lambda-code.c (can_put_in_inner_loop): Adjust.
1335         (can_put_after_inner_loop): Likewise.
1336         (perfect_nestify): Likewise.
1337         * tree-vect-stmts.c (vect_stmt_relevant_p): Adjust.
1338         (vect_gen_widened_results_half): Remove CALL_EXPR handling.
1339         (vectorizable_conversion): Do not mark symbols for renaming.
1340         * tree-inline.c (remap_gimple_stmt): Clear VUSE/VDEF.
1341         (expand_call_inline): Unlink the calls virtual operands before
1342         replacing it.
1343         (tree_function_versioning): Do not call update_ssa if we are not
1344         updating clones.  Simplify.
1345         * tree-ssa-phiprop.c (phivn_valid_p): Adjust.
1346         (propagate_with_phi): Likewise..
1347         * tree-outof-ssa.c (create_temp): Remove memory tag and call
1348         clobber code.  Assert we are not aliased or global.
1349         * tree-flow.h: Include tree-ssa-alias.h
1350         (enum escape_type): Remove.
1351         (struct mem_sym_stats_d): Likewise.
1352         (struct mem_ref_stats_d): Likewise.
1353         (struct gimple_df): Add vop member.  Remove global_var,
1354         call_clobbered_vars, call_used_vars, addressable_vars,
1355         aliases_compted_p and mem_ref_stats members.  Add syms_to_rename,
1356         escaped and callused members.
1357         (struct ptr_info_def): Remove all members, add points-to solution
1358         member pt.
1359         (struct var_ann_d): Remove in_vuse_list, in_vdef_list,
1360         call_clobbered, escape_mask, mpt and symbol_mem_tag members.
1361         * Makefile.in (TREE_FLOW_H): Add tree-ssa-alias.h.
1362         (tree-ssa-structalias.o): Remove tree-ssa-structalias.h.
1363         (tree-ssa-alias.o): Likewise.
1364         (toplev.o): Add tree-ssa-alias.h
1365         (GTFILES): Remove tree-ssa-structalias.h, add tree-ssa-alias.h.
1366         * gimple.c (gimple_set_bb): Fix off-by-one error.
1367         (is_gimple_reg): Do not handle memory tags.
1368         (gimple_copy): Also copy virtual operands.
1369         Delay updating the statement.  Do not reset loaded and stored syms.
1370         (gimple_set_stored_syms): Remove.
1371         (gimple_set_loaded_syms): Likewise.
1372         (gimple_call_copy_skip_args): Copy the virtual operands
1373         and mark the new statement modified.
1374         * tree-ssa-structalias.c (may_alias_p): Remove.
1375         (set_uids_in_ptset): Take the alias set to prune with as
1376         parameter.  Fold in the alias test of may_alias_p.
1377         (compute_points_to_sets): Compute whether a ptr is dereferenced
1378         in a local sbitmap.
1379         (process_constraint): Deal with &ANYTHING on the lhs, reject all
1380         other ADDRESSOF constraints on the lhs.
1381         (get_constraint_for_component_ref): Assert that we don't get
1382         ADDRESSOF constraints from the base of the reference.
1383         Properly generate UNKNOWN_OFFSET for DEREF if needed.
1384         (struct variable_info): Remove collapsed_to member.
1385         (get_varinfo_fc): Remove.
1386         (new_var_info): Do not set collapsed_to.
1387         (dump_constraint): Do not follow cycles.
1388         (dump_constraint_graph): Likewise.
1389         (build_pred_graph): Likewise.
1390         (build_succ_graph): Likewise.
1391         (rewrite_constraints): Likewise.
1392         (do_simple_structure_copy): Remove.
1393         (do_rhs_deref_structure_copy): Remove.
1394         (do_lhs_deref_structure_copy): Remove.
1395         (collapse_rest_of_var): Remove.
1396         (do_structure_copy): Re-implement.
1397         (pta_stats): New global variable.
1398         (dump_pta_stats): New function.
1399         (struct constraint_expr): Make offset signed.
1400         (UNKNOWN_OFFSET): Define special value.
1401         (dump_constraint): Dump UNKNOWN_OFFSET as UNKNOWN.
1402         (solution_set_expand): New helper function split out from ...
1403         (do_sd_constraint): ... here.
1404         (solution_set_add): Handle UNKNOWN_OFFSET.  Handle negative offsets.
1405         (do_ds_constraint): Likewise.
1406         (do_sd_constraint): Likewise.  Do not special-case ESCAPED = *ESCAPED
1407         and CALLUSED = *CALLUSED.
1408         (set_union_with_increment): Make inc argument signed.
1409         (type_safe): Remove.
1410         (get_constraint_for_ptr_offset): Handle unknown and negative
1411         constant offsets.
1412         (first_vi_for_offset): Handle offsets before start.  Bail
1413         out early for offsets beyond the variable extent.
1414         (first_or_preceding_vi_for_offset): New function.
1415         (init_base_vars): Add ESCAPED = ESCAPED + UNKNOWN_OFFSET constraint.
1416         Together with ESCAPED = *ESCAPED this properly computes reachability.
1417         (find_what_var_points_to): New function.
1418         (find_what_p_points_to): Implement in terms of find_what_var_points_to.
1419         (pt_solution_reset, pt_solution_empty_p, pt_solution_includes_global,
1420         pt_solution_includes_1, pt_solution_includes, pt_solutions_intersect_1,
1421         pt_solutions_intersect): New functions.
1422         (compute_call_used_vars): Remove.
1423         (compute_may_aliases): New main entry into PTA computation.
1424         * gimple.h (gimple_p): New typedef.
1425         (struct gimple_statement_base): Remove references_memory_p.
1426         (struct gimple_statement_with_memory_ops_base): Remove
1427         vdef_ops, vuse_ops, stores and loads members.  Add vdef and vuse
1428         members.
1429         (gimple_vuse_ops, gimple_set_vuse_ops, gimple_vdef_ops,
1430         gimple_set_vdef_ops, gimple_loaded_syms, gimple_stored_syms,
1431         gimple_set_references_memory): Remove.
1432         (gimple_vuse_op, gimple_vdef_op, gimple_vuse, gimple_vdef,
1433         gimple_vuse_ptr, gimple_vdef_ptri, gimple_set_vuse, gimple_set_vdef):
1434         New functions.
1435         * tree-cfg.c (move_block_to_fn): Fix off-by-one error.
1436         (verify_expr): Allow RESULT_DECL.
1437         (gimple_duplicate_bb): Do not copy virtual operands.
1438         (gimple_duplicate_sese_region): Adjust.
1439         (gimple_duplicate_sese_tail): Likewise.
1440         (mark_virtual_ops_in_region): Remove.
1441         (move_sese_region_to_fn): Do not call it.
1442         * passes.c (init_optimization_passes): Remove pass_reset_cc_flags
1443         and pass_simple_dse.
1444         (execute_function_todo): Handle TODO_update_address_taken,
1445         call execute_update_addresses_taken for TODO_rebuild_alias.
1446         (execute_todo): Adjust.
1447         (execute_one_pass): Init dump files early.
1448         * ipa-struct-reorg.c (finalize_var_creation): Do not mark vars
1449         call-clobbered.
1450         (create_general_new_stmt): Clear vops.
1451         * tree-ssa-reassoc.c (get_rank): Adjust.
1452         * tree-vect-slp.c (vect_create_mask_and_perm): Do not mark
1453         symbols for renaming.
1454         * params.def (PARAM_MAX_ALIASED_VOPS): Remove.
1455         (PARAM_AVG_ALIASED_VOPS): Likewise.
1456         * tree-ssanames.c (init_ssanames): Allocate SYMS_TO_RENAME.
1457         (duplicate_ssa_name_ptr_info): No need to copy the shared bitmaps.
1458         * tree-ssa-operands.c: Simplify for new virtual operand
1459         representation.
1460         (operand_build_cmp, copy_virtual_operands,
1461         create_ssa_artificial_load_stmt, add_to_addressable_set,
1462         gimple_add_to_addresses_taken): Remove public functions.
1463         (unlink_stmt_vdef): New function.
1464
1465 2009-04-03  Alan Modra  <amodra@bigpond.net.au>
1466
1467         * config.gcc (powerpc-*-linux*): Merge variants.
1468
1469 2009-04-02  Chao-ying Fu  <fu@mips.com>
1470             James Grosbach <james.grosbach@microchip.com>
1471
1472         * config/mips/mips.c (mips_frame_info): Add acc_mask, num_acc,
1473         num_cop0_regs, acc_save_offset, cop0_save_offset, acc_sp_offset,
1474         cop0_sp_offset.
1475         (machine_function): Add interrupt_handler_p, use_shadow_register_set_p,
1476         keep_interrupts_masked_p, use_debug_exception_return_p.
1477         (mips_attribute_table): Add interrupt, use_shadow_register_set,
1478         keep_interrupts_masked, use_debug_exception_return.
1479         (mips_interrupt_type_p, mips_use_shadow_register_set_p,
1480         mips_keep_interrupts_masked_p, mips_use_debug_exception_return_p):
1481         New functions.
1482         (mips_function_ok_for_sibcall): Return false for interrupt handlers.
1483         (mips_print_operand): Process COP0 registers to print $0 .. $31
1484         correctly for GAS to process.
1485         (mips_interrupt_extra_call_saved_reg_p): New function.
1486         (mips_cfun_call_saved_reg_p): For interrupt handlers, we need to check
1487         extra registers.
1488         (mips_cfun_might_clobber_call_saved_reg_p): Likewise.
1489         (mips_compute_frame_info): Add supports for interrupt context that
1490         includes doubleword accumulators and COP0 registers.
1491         (mips_for_each_saved_acc): New function.
1492         (mips_for_each_saved_gpr_and_fpr): Change the function name from
1493         mips_for_each_saved_reg.
1494         (mips_save_reg): Save accumulators.
1495         (mips_kernel_reg_p): A new for_each_rtx callback.
1496         (mips_expand_prologue): Support interrupt handlers.
1497         (mips_restore_reg): Restore accumulators.
1498         (mips_expand_epilogue): Support interrupt handlers.
1499         (mips_can_use_return_insn): Return false for interrupt handlers.
1500         (mips_epilogue_uses): New function.
1501         * config/mips/mips.md (UNSPEC_ERET, UNSPEC_DERET, UNSPEC_DI,
1502         UNSPEC_EHB, UNSPEC_RDPGPR, UNSPEC_COP0): New UNSPEC.
1503         (mips_eret, mips_deret, mips_di, mips_ehb, mips_rdpgpr,
1504         cop0_move): New instructions.
1505         * config/mips/mips-protos.h (mips_epilogue_uses): Declare.
1506         * config/mips/mips.h (K0_REG_NUM, K1_REG_NUM, KERNEL_REG_P): New
1507         defines.
1508         (COP0_STATUS_REG_NUM, COP0_CAUSE_REG_NUM, COP0_EPC_REG_NUM):
1509         New defines.
1510         (CAUSE_IPL, SR_IPL, SR_EXL, SR_IE): New defines.
1511         (MIPS_PROLOGUE_TEMP_REGNUM, MIPS_EPILOGUE_TEMP_REGNUM): For
1512         interrupt handlers, we use K0 as the temporary register.
1513         (EPILOGUE_USES): Change to a function call.
1514         * config/mips/sde.h (MIPS_EPILOGUE_TEMP_REGNUM): For interrupt
1515         handlers, we use K0 as the temporary register.
1516         
1517         * doc/extend.texi (Function Attributes): Document interrupt,
1518         use_shadow_register_set, keep_interrupts_masked,
1519         use_debug_exception_return for MIPS attributes.
1520
1521 2009-04-03  Alan Modra  <amodra@bigpond.net.au>
1522
1523         * config.gcc (powerpc64-*-gnu*): Add rs6000/default64.h to tm_file.
1524         Remove a number of t-files from tmake_file.
1525         * config/rs6000/sysv4.opt (mprototype): Name variable target_prototype.
1526         * config/rs6000/sysv4.h (TARGET_PROTOTYPE): Define.
1527         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Set
1528         target_prototype, not TARGET_PROTOTYPE.
1529         (LINK_OS_GNU_SPEC): Define.
1530         * config/rs6000/t-linux64 (LIB2FUNCS_EXTRA): Delete tramp.S
1531         and darwin-ldoubdle.c.
1532
1533 2009-04-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
1534
1535         PR driver/39293
1536         * gcc.c (save_temps_flag): Add support for -save-temps=obj.
1537         (cpp_options): Ditto.
1538         (default_compilers): Ditto.
1539         (display_help): Ditto.
1540         (process_command): Ditto.
1541         (do_spec_1): Ditto.
1542         (set_input): Use lbasename instead of duplicate code.
1543         (save_temps_prefix): New static for -save-temps=obj.
1544         (save_temps_length): Ditto.
1545         
1546         * doc/invoke.texi (-save-temps=obj): Document new variant to
1547         -save-temps switch.
1548
1549 2009-04-02  Jeff Law  <law@redhat.com>
1550
1551         * reload1.c (fixup_eh_region_notes): Remove write-only "trap_count"
1552         variable.
1553
1554 2009-04-02  H.J. Lu  <hongjiu.lu@intel.com>
1555
1556         * configure.ac: Support -Bstatic/-Bdynamic for linker version > 2.
1557         * configure: Regenerated.
1558
1559 2009-04-02  Rafael Avila de Espindola  <espindola@google.com>
1560
1561         * c-decl.c (merge_decls): Make sure newdecl and olddecl don't
1562         share the argument list.
1563
1564 2009-04-02  Rafael Avila de Espindola  <espindola@google.com>
1565
1566         Merge
1567
1568         2009-02-12  Diego Novillo  <dnovillo@google.com>
1569
1570         * varpool.c (debug_varpool): New.
1571         * cgraph.h (debug_varpool): Declare.
1572
1573 2009-04-02  Jan Hubicka  <jh@suse.cz>
1574
1575         * passes.c (init_optimization_passes): Remove two copies of ehcleanup
1576         pass.
1577
1578 2009-04-02  H.J. Lu  <hongjiu.lu@intel.com>
1579
1580         * config/i386/i386.c (ix86_abi): Move initialization to ...
1581         (override_options): Here.
1582
1583 2009-04-02  Christian Bruel  <christian.bruel@st.com>
1584
1585         * config/sh/sh.c (sh_dwarf_register_span): New function.
1586         (TARGET_DWARF_REGISTER_SPAN): Define.
1587         * config/sh/sh-protos.h (sh_dwarf_register_span): Declare.
1588         
1589 2009-04-02  Ira Rosen  <irar@il.ibm.com>
1590
1591         PR tree-optimization/39595
1592         * tree-vect-slp.c (vect_build_slp_tree): Check that the size of 
1593         interleaved loads group is not  greater than the SLP group size.
1594
1595 2009-04-02  Rafael Avila de Espindola  <espindola@google.com>
1596
1597         * builtins.c (is_builtin_name): New.
1598         (called_as_built_in): Use is_builtin_name.
1599         * tree.h (is_builtin_name): New.
1600         * varasm.c (incorporeal_function_p): Use is_builtin_name
1601
1602 2009-04-02  Andrew Stubbs  <ams@codesourcery.com>
1603
1604         * config/sh/linux-unwind.h: Disable when inhibit_libc is defined.
1605
1606 2009-04-02  Dodji Seketeli  <dodji@redhat.com>
1607
1608         PR c++/26693
1609         * c-decl.c: (clone_underlying_type): Move this ...
1610         * c-common.c (set_underlying_type): ... here.
1611         Also, make sure the function properly sets TYPE_STUB_DECL() on
1612         the newly created typedef variant type.
1613         * c-common.h (is_typedef_decl, set_underlying_type): Declare ...
1614         * c-common.c (is_typedef_decl, set_underlying_type): ... new entry points.
1615
1616 2009-04-02  Richard Guenther  <rguenther@suse.de>
1617
1618         PR tree-optimization/37221
1619         * tree-flow.h (degenerate_phi_result): Declare.
1620         * tree-ssa-dom.c (degenerate_phi_result): Export.
1621         * tree-scalar-evolution.c (analyze_initial_condition): If
1622         the initial condition is defined by a degenerate PHI node
1623         use the degenerate value.
1624
1625 2009-04-01  Eric Botcazou  <ebotcazou@adacore.com>
1626
1627         PR rtl-optimization/39588
1628         * combine.c (merge_outer_ops): Do not set the constant when this
1629         is not necessary.
1630         (simplify_shift_const_1): Do not modify it either in this case.
1631
1632 2009-04-01  Steven Bosscher  <steven@gcc.gnu.org>
1633
1634         * config/ia64/ia64.c (ia64_handle_option): Inform user that Itanium1
1635         tuning is deprecated if -mtune value is set to an Itanium1 variant.
1636
1637 2009-04-01  Janis Johnson  <janis187@us.ibm.com>
1638
1639         PR c/29027
1640         * c-lex.c (interpret_float): Default (no suffix) is double.
1641
1642 2009-04-1  Xinliang David Li  <davidxl@google.com>
1643
1644         * config/i386/i386.c (legitimate_constant_p): Recognize
1645         all one vector constant.
1646
1647 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1648
1649         * gcc/config/vax/vax.c: Add #includes to silence warnings.
1650         Change #include order to silence two warnings.
1651
1652 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1653
1654         * gcc/config/vax/linux.h (TARGET_DEFAULT): Add the MASK_QMATH flag bit.
1655         (ASM_SPEC): Pass -k to the assembler for PIC code.
1656
1657 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1658
1659         * gcc/config.gcc: Add vax-*-linux* to the switch.
1660         * gcc/config/vax/linux.h: New file. (TARGET_VERSION,
1661         TARGET_OS_CPP_BUILTINS, TARGET_DEFAULT, CPP_SPEC, LINK_SPEC): Define.
1662
1663 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1664
1665         * gcc/config/vax/vax.c (vax_output_int_move, adjacent_operands_p):
1666         Use predicate macros instead of GET_CODE() == foo.
1667         * gcc/config/vax/vax.md (movsi_2, movstrictqi, and<mode>3, ashrsi3,
1668         ashlsi3, rotrsi3, <unnamed>): Likewise.
1669
1670 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1671
1672         * gcc/config/vax/builtins.md (jbbssiqi, jbbssihi, jbbssisi, jbbcciqi,
1673         jbbccihi, jbbccisi): Remova trailing whitespace.
1674         * gcc/config/vax/constraints.md: Likewise.
1675         * gcc/config/vax/elf.h: (ASM_PREFERRED_EH_DATA_FORMAT): Likewise.
1676         * gcc/config/vax/openbsd1.h (OBSD_OLD_GAS): Likewise.
1677         * gcc/config/vax/predicates.md: Likewise.
1678         * gcc/config/vax/vax.c (print_operand_address, vax_output_int_move,
1679         vax_expand_addsub_di_operands, adjacent_operands_p): Likewise.
1680         * gcc/config/vax/vax.h: Likewise.
1681         * gcc/config/vax/vax.md (nonlocal_goto): Likewise.
1682
1683 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1684
1685         * gcc/config/vax/vax.c (vax_float_literal, vax_output_int_move)
1686         (indirectable_address_p, adjacent_operands_p): Add spaces around
1687         braces.
1688         * gcc/config/vax/vax-protos.h (adjacent_operands_p): Likewise.
1689
1690 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1691
1692         * gcc/config/vax/vax.c (legitimate_constant_address_p,
1693         legitimate_constant_p, indirectable_address_p, nonindexed_address_p,
1694         index_term_p, reg_plus_index_p, legitimate_address_p,
1695         vax_mode_dependent_address_p): Update comments to match functions
1696         modified by the recent int->bool conversion.
1697
1698 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1699
1700         * gcc/config/vax/builtins.md: Update copyright message.
1701         * gcc/config/vax/constraints.md: Likewise.
1702         * gcc/config/vax/netbsd-elf.h: Likewise.
1703         * gcc/config/vax/predicates.md: Likewise.
1704         * gcc/config/vax/vax-protos.h: Likewise.
1705         * gcc/config/vax/vax.c: Likewise.
1706         * gcc/config/vax/vax.h: Likewise.
1707         * gcc/config/vax/vax.md: Likewise.
1708         * gcc/config/vax/vax.opt: Likewise.
1709
1710 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1711
1712         * gcc/config/vax/builtins.md (ffssi2, ffssi2_internal,
1713         sync_lock_test_and_set<mode>, sync_lock_release<mode>): Fix indention.
1714         * gcc/config/vax/constraints.md (B, R): Likewise.
1715         * gcc/config/vax/predicates.md (external_memory_operand,
1716         nonimmediate_addsub_di_operand): Likewise.
1717         * gcc/config/vax/vax.c (vax_output_int_add): Likewise.
1718         * gcc/config/vax/vax.md (movsi, movsi_2, mov<mode>, call_value,
1719         untyped_call): Likewise.
1720
1721 2009-04-01  Matt Thomas <matt@3am-software.com>
1722
1723         * config/vax/predicates.md: New file. (symbolic_operand,
1724         local_symbolic_operand, external_symbolic_operand,
1725         external_const_operand, nonsymbolic_operand, external_memory_operand,
1726         indirect_memory_operand, indexed_memory_operand,
1727         illegal_blk_memory_operand, illegal_addsub_di_memory_operand,
1728         nonimmediate_addsub_di_operand, general_addsub_di_operand): New
1729         predicate.
1730         * config/vax/constraints.md: New file. (Z0, U06,  U08, U16, CN6, S08,
1731         S16, I, J, K, L, M, N, O, G, Q, B, R, T): New constraint.
1732         * config/vax/builtins.md: New file. (ffssi2, ffssi2_internal,
1733         sync_lock_test_and_set<mode>, jbbssiqi, jbbssihi, jbbssisi,
1734         sync_lock_release<mode>, jbbcciqi, jbbccihi, jbbccisi): Define.
1735         * config/vax/vax.opt (mqmath): Add option.
1736         * config/vax/vax.md (isfx): Extend with DI.
1737         (VAXintQH, VAXintQHSD): Define.
1738         (tst<mode>, cmp<mode>, *bit<mode>, movmemhi1, truncsiqi2, truncsihi2,
1739         mulsidi3, add<mode>3, sub<mode>, mul<mode>3, div<mode>3, and<mode>,
1740         and<mode>_const_int, ior<mode>3, xor<mode>3, neg<mode>2,
1741         one_cmpl<mode>2, ashlsi3, lshrsi3, rotlsi3): Update constraints.
1742         (movdi): Update constraints and use vax_output_int_move().
1743         (movsi, movsi_2, pushlclsymreg, pushextsymreg, movlclsymreg,
1744         movextsymreg, adddi3, adcdi3, subdi3, sbcdi3, pushextsym, movextsym,
1745         pushlclsym, movlclsym, movaddr<mode>, pushaddr<mode>,
1746         nonlocal_goto): New.
1747         (mov<mode>): Extend accepted operand types.
1748         (subdi3_old): Rename from subdi3, change update constraints and use
1749         a new implementation.
1750         * gcc/config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Add space.
1751         (FRAME_POINTER_CFA_OFFSET, IRA_COVER_CLASSES, CLASS_MAX_NREGS,
1752         MOVE_RATIO, CLEAR_RATIO): Define.
1753         (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P,
1754         CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
1755         (PRINT_OPERAND): Redefine using a function instead of inlined code.
1756         * gcc/config/vax/vax.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Define.
1757         (split_quadword_operands): Make static and really allow variable
1758         splitting.
1759         (print_operand_address): Update for PIC generation.
1760         (print_operand, vax_builtin_setjmp_frame_value, vax_output_int_subtract,
1761         indexable_address_p, fixup_mathdi_operand,
1762         vax_expand_addsub_di_operands, adjacent_operands_p): New.
1763         (vax_float_literal, legitimate_constant_p,
1764         indirectable_constant_address_p, index_term_p,
1765         reg_plus_index_p): Return bool instead of int.
1766         (vax_rtx_costs): Fix cost for CONST_INT, indent and use HOST_WIDE_INT
1767         where needed.
1768         (vax_output_int_move, vax_output_int_add): Extend to allow PIC
1769         generation.
1770         (vax_output_conditional_branch): Indent.
1771         (legitimate_constant_address_p, indirectable_constant_address_p,
1772         indirectable_address_p, nonindexed_address_p, legitimate_address_p,
1773         vax_mode_dependent_address_p): Return bool instead of int, update for
1774         PIC generation.
1775         * config/vax/vax-protos.h (legitimate_constant_address_p,
1776         legitimate_constant_p, legitimate_address_p,
1777         vax_mode_dependent_address_p): Change declaration to bool.
1778         (legitimate_pic_operand_p, adjacent_operands_p, print_operand,
1779         vax_expand_addsub_di_operands, vax_output_int_subtract,
1780         vax_output_movmemsi): Declare.
1781         (split_quadword_operands, vax_float_literal): Delete declaration.
1782         * config/vax/netbsd-elf.h (CC1_SPEC, CC1PLUS_SPEC) Define.
1783         * config/vax/elf.h (NO_EXTERNAL_INDIRECT_ADDRESS,
1784         VAX_CC1_AND_CC1PLUS_SPEC, ASM_PREFERRED_EH_DATA_FORMAT,
1785         ASM_OUTPUT_DWARF_PCREL): Define.
1786         (ASM_SPEC): Change definition to allow PIC generation.
1787
1788 2009-04-01  Steve Ellcey  <sje@cup.hp.com>
1789
1790         * doc/sourcebuild.texi: Update front-end requirements.
1791
1792 2009-04-01  Jakub Jelinek  <jakub@redhat.com>
1793
1794         PR target/39226
1795         * config/rs6000/rs6000.md (andsi3_internal5_nomc,
1796         anddi3_internal2_nomc, anddi3_internal3_nomc): Removed.
1797         (booldi3_internal3): Use boolean_or_operator instead of
1798         boolean_operator.
1799
1800 2009-04-01  Joseph Myers  <joseph@codesourcery.com>
1801
1802         PR c/39605
1803         * c-decl.c (grokdeclarator): Pedwarn for file-scope array
1804         declarator whose size is not an integer constant expression but
1805         folds to an integer constant, then treat it as a constant
1806         subsequently.
1807
1808 2009-04-01  Richard Guenther  <rguenther@suse.de>
1809
1810         * fold-const.c (fold_plusminus_mult_expr): Do not fold
1811         i * 4 + 2 to (i * 2 + 1) * 2.
1812
1813 2009-04-01  Jakub Jelinek  <jakub@redhat.com>
1814
1815         PR c/37772
1816         * c-parser.c (c_parser_asm_statement): Skip until close paren and
1817         return if c_parser_asm_string_literal returned NULL.
1818
1819 2009-04-01  Nick Clifton  <nickc@redhat.com>
1820
1821         * config/m32c/m32c.h (LIBGCC2_UNITS_PER_WORD): Define if not
1822         already defined.
1823         * config/m32c/t-m32c (LIB2FUNCS_EXTRA): Add m32c-lib2-trapv.c.
1824         * config/m32c/m32c-lib2.c: Remove unused typedefs.  Rename the
1825         other typedefs to avoid conflicts with libgcc2.c.  Define labels
1826         to gain 16-bit bit-manipulation functions from libgcc2.c and then
1827         include it.
1828         * config/m32c/m32c-lib2-trapv.c: New file.  Define labels
1829         to gain 16-bit trapping arithmetic functions from libgcc2.c and
1830         then include it.
1831
1832 2009-04-01  Rafael Avila de Espindola  <espindola@google.com>
1833
1834        * varasm.c (default_function_rodata_section): Declare DOT as const char*.
1835
1836 2009-04-01  Kai Tietz  <kai.tietz@onevision.com>
1837             Andrey Galkin <agalkin@hypercom.com>
1838
1839         PR/39492
1840         * config/i386/host-mingw32.c (mingw32_gt_pch_use_address):
1841         Make object_name unique for each process.
1842
1843 2009-04-01  Jakub Jelinek  <jakub@redhat.com>
1844
1845         PR other/39591
1846         * omp-low.c (remove_exit_barrier): Don't optimize if there are any
1847         addressable variables in the parallel that could go out of scope while
1848         running queued tasks.
1849
1850 2009-04-01  Anatoly Sokolov  <aesok@post.ru>
1851
1852         * config/avr/avr.h (avr_case_values_threshold): Remove declaration.
1853         (CASE_VALUES_THRESHOLD): Redefine.
1854         * config/avr/avr.c (avr_override_options): Remove initialization of
1855         avr_case_values_threshold variable.
1856         (avr_case_values_threshold): Remove variable. Add new function.
1857         * config/avr/avr-protos.h (avr_case_values_threshold): Declare.
1858         * config/avr/avr.opt (mno-tablejump): Remove option.
1859         * doc/invoke.texi (AVR Options): Remove -mno-tablejump.
1860
1861 2009-04-01  DJ Delorie  <dj@redhat.com>
1862
1863         * varasm.c (default_function_rodata_section): Don't assume
1864         anything about where the first '.' in the section name is.
1865
1866 2009-04-01  Alan Modra  <amodra@bigpond.net.au>
1867
1868         * config/rs6000/rs6000.c (rs6000_emit_stack_reset): Delete redundant
1869         rs6000_emit_stack_tie.
1870
1871 2009-03-31  Ian Lance Taylor  <iant@google.com>
1872
1873         * tree-eh.c (tree_remove_unreachable_handlers): Compare
1874         gimple_code with GIMPLE_RESX, not RESX.
1875
1876 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
1877
1878         * c-common.c (c_get_ident): New.
1879         (c_common_nodes_and_builtins): Call it for type names that may be
1880         NULL.
1881
1882 2009-04-01  Ben Elliston  <bje@au.ibm.com>
1883
1884         * config/rs6000/sysv4.opt (msdata): Improve option description.
1885
1886 2009-03-31  Steve Ellcey  <sje@cup.hp.com>
1887
1888         * config/ia64/ia64.md (divsf3_internal_lat): Remove.
1889         (divdf3_internal_lat): Remove.
1890         (divxf3_internal_lat): Remove.
1891         (divxf3_internal_thr): Remove.
1892         (divxf): Use divxf3_internal.
1893         * config/ia64/div.md (divsf3_internal_lat): New.
1894         (divdf3_internal_lat): New.
1895         (divxf3_internal): New.
1896
1897 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
1898
1899         PR c/448
1900         * Makefile.in (USE_GCC_STDINT): Define.
1901         (stmp-int-hdrs): Install stdint.h if applicable.
1902         * c-common.c (CHAR16_TYPE): Define in terms of UINT_LEAST16_TYPE
1903         if known.
1904         (CHAR32_TYPE): Define in terms of UINT_LEAST32_TYPE if known.
1905         (SIG_ATOMIC_TYPE, INT8_TYPE, INT16_TYPE, INT32_TYPE, INT64_TYPE,
1906         UINT8_TYPE, UINT16_TYPE, UINT32_TYPE, UINT64_TYPE,
1907         INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
1908         INT_LEAST64_TYPE, UINT_LEAST8_TYPE, UINT_LEAST16_TYPE,
1909         UINT_LEAST32_TYPE, UINT_LEAST64_TYPE, INT_FAST8_TYPE,
1910         INT_FAST16_TYPE, INT_FAST32_TYPE, INT_FAST64_TYPE,
1911         UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
1912         UINT_FAST64_TYPE, INTPTR_TYPE, UINTPTR_TYPE): Define.
1913         (c_common_nodes_and_builtins): Initialize
1914         underlying_wchar_type_node.  Do not initialize
1915         signed_wchar_type_node or unsigned_wchar_type_node.  Initialize
1916         nodes for new types.
1917         (c_stddef_cpp_builtins): Define macros for new types.
1918         * c-common.h (CTI_SIGNED_WCHAR_TYPE, CTI_UNSIGNED_WCHAR_TYPE):
1919         Remove.
1920         (CTI_UNDERLYING_WCHAR_TYPE, CTI_SIG_ATOMIC_TYPE, CTI_INT8_TYPE,
1921         CTI_INT16_TYPE, CTI_INT32_TYPE, CTI_INT64_TYPE, CTI_UINT8_TYPE,
1922         CTI_UINT16_TYPE, CTI_UINT32_TYPE, CTI_UINT64_TYPE,
1923         CTI_INT_LEAST8_TYPE, CTI_INT_LEAST16_TYPE, CTI_INT_LEAST32_TYPE,
1924         CTI_INT_LEAST64_TYPE, CTI_UINT_LEAST8_TYPE, CTI_UINT_LEAST16_TYPE,
1925         CTI_UINT_LEAST32_TYPE, CTI_UINT_LEAST64_TYPE, CTI_INT_FAST8_TYPE,
1926         CTI_INT_FAST16_TYPE, CTI_INT_FAST32_TYPE, CTI_INT_FAST64_TYPE,
1927         CTI_UINT_FAST8_TYPE, CTI_UINT_FAST16_TYPE, CTI_UINT_FAST32_TYPE,
1928         CTI_UINT_FAST64_TYPE, CTI_INTPTR_TYPE, CTI_UINTPTR_TYPE): Define.
1929         (signed_wchar_type_node, unsigned_wchar_type_node): Remove.
1930         (underlying_wchar_type_node, sig_atomic_type_node, int8_type_node,
1931         int16_type_node, int32_type_node, int64_type_node,
1932         uint8_type_node, uint16_type_node, c_uint32_type_node,
1933         c_uint64_type_node, int_least8_type_node, int_least16_type_node,
1934         int_least32_type_node, int_least64_type_node,
1935         uint_least8_type_node, uint_least16_type_node,
1936         uint_least32_type_node, uint_least64_type_node,
1937         int_fast8_type_node, int_fast16_type_node, int_fast32_type_node,
1938         int_fast64_type_node, uint_fast8_type_node, uint_fast16_type_node,
1939         uint_fast32_type_node, uint_fast64_type_node, intptr_type_node,
1940         uintptr_type_node): Define.
1941         * c-cppbuiltin.c (builtin_define_constants,
1942         builtin_define_type_minmax): New.
1943         (builtin_define_stdint_macros): Define more macros.
1944         (c_cpp_builtins): Define more limit macros.
1945         (type_suffix): New.
1946         (builtin_define_type_max): Define in terms of
1947         builtin_define_type_minmax.  Remove is_long parameter.  All
1948         callers changed.
1949         * config.gcc (use_gcc_stdint): Define.
1950         (tm_file): Add glibc-stdint.h for targets using glibc or uClibc.
1951         Add newlib-stdint.h for generic targets.
1952         * config/glibc-stdint.h, config/newlib-stdint.h,
1953         ginclude/stdint-gcc.h, ginclude/stdint-wrap.h: New.
1954         * config/m32c/m32c.h (UINTPTR_TYPE): Define.
1955         * config/score/score.h (UINTPTR_TYPE): Define.
1956         * config/sol2.h (SIG_ATOMIC_TYPE, INT8_TYPE, INT16_TYPE,
1957         INT32_TYPE, INT64_TYPE, UINT8_TYPE, UINT16_TYPE, UINT32_TYPE,
1958         UINT64_TYPE, INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
1959         INT_LEAST64_TYPE, UINT_LEAST8_TYPE, UINT_LEAST16_TYPE,
1960         UINT_LEAST32_TYPE, UINT_LEAST64_TYPE, INT_FAST8_TYPE,
1961         INT_FAST16_TYPE, INT_FAST32_TYPE, INT_FAST64_TYPE,
1962         UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
1963         UINT_FAST64_TYPE, INTPTR_TYPE, UINTPTR_TYPE): Define.
1964         * config/spu/spu.h (STDINT_LONG32): Define.
1965         * configure.ac (use_gcc_stdint): Substitute.
1966         * configure: Regenerate.
1967         * doc/cpp.texi (__SIG_ATOMIC_TYPE__, __INT8_TYPE__,
1968         __INT16_TYPE__, __INT32_TYPE__, __INT64_TYPE__, __UINT8_TYPE__,
1969         __UINT16_TYPE__, __UINT32_TYPE__, __UINT64_TYPE__,
1970         __INT_LEAST8_TYPE__, __INT_LEAST16_TYPE__, __INT_LEAST32_TYPE__,
1971         __INT_LEAST64_TYPE__, __UINT_LEAST8_TYPE__, __UINT_LEAST16_TYPE__,
1972         __UINT_LEAST32_TYPE_, __UINT_LEAST64_TYPE__, __INT_FAST8_TYPE__,
1973         __INT_FAST16_TYPE__, __INT_FAST32_TYPE__, __INT_FAST64_TYPE__,
1974         __UINT_FAST8_TYPE__, __UINT_FAST16_TYPE__, __UINT_FAST32_TYPE__,
1975         __UINT_FAST64_TYPE__, __INTPTR_TYPE__, __UINTPTR_TYPE__,
1976         __WINT_MAX__, __SIZE_MAX__, __PTRDIFF_MAX__, __UINTMAX_MAX__,
1977         __SIG_ATOMIC_MAX__, __INT8_MAX__, __INT16_MAX__, __INT32_MAX__,
1978         __INT64_MAX__, __UINT8_MAX__, __UINT16_MAX__, __UINT32_MAX__,
1979         __UINT64_MAX__, __INT_LEAST8_MAX__, __INT_LEAST16_MAX__,
1980         __INT_LEAST32_MAX__, __INT_LEAST64_MAX__, __UINT_LEAST8_MAX__,
1981         __UINT_LEAST16_MAX__, __UINT_LEAST32_MAX__, __UINT_LEAST64_MAX__,
1982         __INT_FAST8_MAX__, __INT_FAST16_MAX__, __INT_FAST32_MAX__,
1983         __INT_FAST64_MAX__, __UINT_FAST8_MAX__, __UINT_FAST16_MAX__,
1984         __UINT_FAST32_MAX__, __UINT_FAST64_MAX__, __INTPTR_MAX__,
1985         __UINTPTR_MAX__, __WCHAR_MIN__, __WINT_MIN__, __SIG_ATOMIC_MIN__,
1986         __INT8_C, __INT16_C, __INT32_C, __INT64_C, __UINT8_C, __UINT16_C,
1987         __UINT32_C, __UINT64_C, __INTMAX_C, __UINTMAX_C): Document.
1988         * doc/tm.texi (SIG_ATOMIC_TYPE, INT8_TYPE, INT16_TYPE, INT32_TYPE,
1989         INT64_TYPE, UINT8_TYPE, UINT16_TYPE, UINT32_TYPE, UINT64_TYPE,
1990         INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
1991         INT_LEAST64_TYPE, UINT_LEAST8_TYPE, UINT_LEAST16_TYPE,
1992         UINT_LEAST32_TYPE, UINT_LEAST64_TYPE, INT_FAST8_TYPE,
1993         INT_FAST16_TYPE, INT_FAST32_TYPE, INT_FAST64_TYPE,
1994         UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
1995         UINT_FAST64_TYPE, INTPTR_TYPE, UINTPTR_TYPE): Document.
1996
1997 2009-03-31  Bernd Schmidt  <bernd.schmidt@analog.com>
1998
1999         * loop-iv.c (suitable_set_for_replacement): Renamed from
2000         simplify_using_assignment; changed to return bool and to accept new
2001         args DEST and SRC.  Return true iff we find a source/destination pair
2002         that can be used to make a replacement, and fill SRC and DEST if so.
2003         Remove arg ALTERED.  Don't deal with altered regs here.  All callers
2004         changed.
2005         (simplify_using_initial_values): Deal with altered regs here and track
2006         more precisely the effect they have on the validity of our expression.
2007
2008         * loop-iv.c (simplify_using_condition): A condition of the form
2009         (EQ REG CONST) can be used to simply make a substitution.
2010         (simplify_using_initial_values): Keep track of conditions we have seen
2011         and keep using them to simplify new expressions, while applying the
2012         same substitutions to them as to the expression.
2013
2014         * simplify-rtx.c (simplify_relational_operation_1): Simplify
2015         (LTU (PLUS a C) C) or (LTU (PLUS a C) a) to (GEU a -C); likewise with
2016         GEU/LTU reversed.
2017
2018         * loop-iv.c (determine_max_iter): New arg OLD_NITER.  All callers
2019         changed.  Use this when trying to improve the upper bound.
2020         Generate the comparison by using simplify_gen_relational.
2021
2022         * loop-iv.c (simple_rhs_p): Allow more kinds of expressions.
2023
2024         * loop-iv.c (replace_single_def_regs, replace_in_expr): New static
2025         functions.
2026         (simplify_using_assignment, simplify_using_initial_values): Call 
2027         replace_in_expr to make replacements.  Call replace_single_def_regs
2028         once on the initial version of the expression.
2029
2030 2009-03-31  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2031
2032         PR target/27237
2033         * doc/invoke.texi (ARM Options): Update documentation for -mthumb.
2034         
2035 2009-03-31  Richard Guenther  <rguenther@suse.de>
2036
2037         PR middle-end/31029
2038         * fold-const.c (fold_binary): Fold X +- Y CMP X to Y CMP 0 for
2039         equality comparisons.  Fold C - X CMP X if C % 2 == 1.
2040
2041 2009-03-31  Richard Guenther  <rguenther@suse.de>
2042
2043         * tree.h (div_if_zero_remainder): Declare.
2044         * fold-const.c (div_if_zero_remainder): Export.
2045         * tree-ssa-forwprop.c
2046         (forward_propagate_addr_into_variable_array_index): Handle
2047         constant array index addition outside of the variable index.
2048
2049 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
2050
2051         PR target/39592
2052         * config/i386/i386.md (*floatunssi<mode>2_1, two unnamed
2053         define_splits, floatunssi<mode>2): Require x87 conversions from
2054         DImode to be permitted.
2055
2056 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
2057
2058         PR preprocessor/15638
2059         * c-common.c (c_cpp_error): Handle CPP_DL_FATAL.
2060
2061 2009-03-31  Richard Guenther  <rguenther@suse.de>
2062
2063         PR middle-end/23401
2064         PR middle-end/27810
2065         * tree.h (DECL_GIMPLE_FORMAL_TEMP_P): Remove.
2066         (struct tree_decl_with_vis): Remove gimple_formal_temp member.
2067         * tree-eh.c (lower_eh_constructs_2): Move LHS assignment to
2068         a separate statement.
2069         * gimplify.c (pop_gimplify_context): Remove formal temp handling.
2070         (lookup_tmp_var): Likewise.
2071         (is_gimple_formal_tmp_or_call_rhs): Remove.
2072         (is_gimple_reg_or_call_rhs): Rename to ...
2073         (is_gimple_reg_rhs_or_call): ... this.
2074         (is_gimple_mem_or_call_rhs): Rename to ...
2075         (is_gimple_mem_rhs_or_call): ... this.
2076         (internal_get_tmp_var): Use is_gimple_reg_rhs_or_call.  Set
2077         DECL_GIMPLE_REG_P only if is_formal is true.
2078         (gimplify_compound_lval): Use is_gimple_reg.  Remove workaround
2079         for non-proper post-modify expression gimplification.
2080         (gimplify_self_mod_expr): For post-modify expressions gimplify
2081         the lvalue to a minimal lvalue.
2082         (rhs_predicate_for): Remove formal temp case.
2083         (gimplify_modify_expr_rhs): Likewise.
2084         (gimplify_addr_expr): Use is_gimple_reg.
2085         (gimplify_expr): Remove formal temp cases.
2086         (gimple_regimplify_operands): Likewise.
2087         * tree-ssa-pre.c (get_or_alloc_expr_for): Treat EXC_PTR_EXPR
2088         and FILTER_EXPR like constants.
2089         * gimple.c (walk_gimple_op): Fix val_only initialization, use
2090         is_gimple_reg.
2091         (is_gimple_formal_tmp_rhs): Remove.
2092         (is_gimple_reg_rhs): Remove special casing.
2093         (is_gimple_mem_rhs): Fix.
2094         (is_gimple_reg): Move DECL_GIMPLE_REG_P handling earlier.
2095         (is_gimple_formal_tmp_var): Remove.
2096         (is_gimple_formal_tmp_reg): Likewise.
2097         (is_gimple_min_lval): Allow invariant component ref parts.
2098         * gimple.h (is_gimple_formal_tmp_rhs, is_gimple_formal_tmp_var,
2099         is_gimple_formal_tmp_reg): Remove declarations.
2100         * tree-cfg.c (verify_expr): Verify that variables with address
2101         taken do not have DECL_GIMPLE_REG_P set.
2102         * tree-mudflap.c (mf_build_check_statement_for): Use
2103         force_gimple_operand instead of gimplify_expr.
2104
2105 2009-03-31  Ayal Zaks  <zaks@il.ibm.com>
2106
2107         * modulo-sched.c (sms_schedule_by_order): Pass the actual
2108         schedulable rows to compute_split_row.
2109
2110 2009-03-31  Ben Elliston  <bje@au.ibm.com>
2111
2112         PR target/31635
2113         * config/rs6000/rs6000.c (rs6000_handle_option): Handle
2114         OPT_mvrsave.
2115
2116 2009-03-31  Alan Modra  <amodra@bigpond.net.au>
2117
2118         * doc/invoke.texi (RS/6000 and PowerPC Options):Document mtls-markers.
2119         * configure.ac (HAVE_AS_TLS_MARKERS): New gas feature check.
2120         * configure: Regenerate.
2121         * config.in: Regenerate.
2122         * config/rs6000/rs6000.opt (mtls-markers): Add.
2123         * config/rs6000/rs6000.h (TARGET_TLS_MARKERS): Define.
2124         * config/rs6000/rs6000.md (tls_gd_aix, tls_gd_sysv): Add splitter.
2125         (tls_ld_aix, tls_ld_sysv): Likewise.
2126         (tls_gd, tls_gd_call_aix, tls_gd_call_sysv): New insns.
2127         (tls_ld, tls_ld_call_aix, tls_ld_call_sysv): Likewise.
2128
2129 2009-03-31  Alan Modra  <amodra@bigpond.net.au>
2130
2131         * config/spu/spu.c (spu_expand_prologue): Delete redundant code.
2132
2133 2009-03-30  Jan Hubicka  <jh@suse.cz>
2134
2135         * tree-eh.c (make_eh_edges): Set probability 100% to first edge
2136         out of RESX.
2137         (tree_remove_unreachable_handlers): Cleanup EH predecestor
2138         detection and label handling.
2139
2140 2009-03-30  Vladimir Makarov  <vmakarov@redhat.com>
2141
2142         * ira-int.h (ira_allocno): Rename left_conflicts_num to
2143         left_conflicts_size.
2144         (ALLOCNO_LEFT_CONFLICTS_NUM): Rename to
2145         ALLOCNO_LEFT_CONFLICTS_SIZE.
2146
2147         * ira-color.c (allocno_spill_priority, push_allocno_to_stack,
2148         remove_allocno_from_bucket_and_push,
2149         allocno_spill_priority_compare, push_allocnos_to_stack,
2150         setup_allocno_available_regs_num): Use ALLOCNO_LEFT_CONFLICTS_SIZE
2151         instead of ALLOCNO_LEFT_CONFLICTS_NUM.
2152         (setup_allocno_left_conflicts_num): Ditto.  Rename to
2153         setup_allocno_left_conflicts_size.
2154         (put_allocno_into_bucket): Use ALLOCNO_LEFT_CONFLICTS_SIZE
2155         instead of ALLOCNO_LEFT_CONFLICTS_NUM and
2156         setup_allocno_left_conflicts_size instead of
2157         setup_allocno_left_conflicts_num.
2158
2159         * ira-build.c (ira_create_allocno): Use
2160         ALLOCNO_LEFT_CONFLICTS_SIZE instead of
2161         ALLOCNO_LEFT_CONFLICTS_NUM.
2162                 
2163 2009-03-30  Vladimir Makarov  <vmakarov@redhat.com>
2164
2165         * reload.c (push_reload, find_dummy_reload): Use df_get_live_out
2166         instead of DF_LR_OUT.
2167
2168         * ira-lives.c (process_bb_node_lives): Ditto.
2169
2170         * ira-color.c (ira_loop_edge_freq): Use df_get_live_{out,in}
2171         instead of DF_LR_{OUT,IN}.
2172
2173         * ira-emit.c (generate_edge_moves, add_ranges_and_copies): Ditto.
2174
2175         * ira-build.c (create_bb_allocnos, create_loop_allocnos): Ditto.
2176
2177 2009-03-30  Jan Hubicka  <jh@suse.cz>
2178
2179         * except.c (label_to_region_map): Fix thinko.
2180
2181 2009-03-30  Steve Ellcey  <sje@cup.hp.com>
2182
2183         PR middle-end/38237
2184         * tree.h (tree_find_value): New declaration.
2185         * tree.c (tree_find_value): New function.
2186         * varasm.c (assemble_external): Avoid duplicate entries on lists.
2187
2188 2009-03-30  Jakub Jelinek  <jakub@redhat.com>
2189
2190         PR debug/39563
2191         * c-decl.c (struct c_binding): Add locus field.
2192         (bind): Add locus argument, set locus field from it.
2193         (pop_scope): For b->nested VAR_DECL or FUNCTION_DECL,
2194         add a DECL_EXTERNAL copy of b->decl to current BLOCK_VARS.
2195         (push_file_scope, pushtag, pushdecl, pushdecl_top_level,
2196         implicitly_declare, undeclared_variable, lookup_label,
2197         declare_label, c_make_fname_decl, c_builtin_function,
2198         c_builtin_function_ext_scope, store_parm_decls_newstyle): Adjust
2199         bind callers.
2200
2201 2008-03-30  H.J. Lu  <hongjiu.lu@intel.com>
2202
2203         PR target/38781
2204         * config/i386/i386.c (classify_argument): Check total size of
2205         structure.
2206
2207 2009-03-30  Martin Jambor  <mjambor@suse.cz>
2208
2209         * ipa-prop.h (jump_func_type): Rename IPA_UNKNOWN, IPA_CONST,
2210         IPA_CONST_MEMBER_PTR, and IPA_PASS_THROUGH to IPA_JF_UNKNOWN,
2211         IPA_JF_CONST, IPA_JF_CONST_MEMBER_PTR, and IPA_JF_PASS_THROUGH
2212         respectively.
2213
2214         * tree-dfa.c (get_ref_base_and_extent): Return -1 maxsize if
2215         seen_variable_array_ref while also traversing a union.
2216
2217         * tree-inline.c (optimize_inline_calls): Do not call
2218         cgraph_node_remove_callees.
2219         * cgraphbuild.c (remove_cgraph_callee_edges): New function.
2220         (pass_remove_cgraph_callee_edges): New variable.
2221         * passes.c (init_optimization_passes): Add
2222         pass_remove_cgraph_callee_edges after early inlining and before all
2223         late intraprocedural passes.
2224
2225         * omp-low.c (expand_omp_taskreg): Always set current_function_decl.
2226
2227 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2228
2229         * config/sparc/sparc.md (*nand<V64mode>_vis, *nand<V32mode>_vis):
2230         Fix typos in names.
2231
2232 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2233
2234         * combine.c (simplify_comparison): Use have_insn_for.
2235         * dojump.c (do_jump): Likewise.
2236
2237 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2238
2239         * config/sparc/sparc.c (sparc_compare_emitted): Remove.
2240         (gen_compare_reg, emit_v9_brxx_insn): Handle MODE_CC
2241         sparc_compare_op0 like sparc_compare_emitted used to be handled.
2242         (sparc_expand_compare_and_swap_12): Set sparc_compare_op0
2243         instead of sparc_compare_emitted.
2244         * config/sparc/sparc.h (sparc_compare_emitted): Remove.
2245         * config/sparc/sparc.md (stack_protect_test): Set sparc_compare_op0
2246         instead of sparc_compare_emitted.
2247
2248 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2249
2250         * bb-reorder.c (partition_hot_cold_basic_blocks): Do not
2251         enter/exit cfglayout mode.
2252         (pass_partition_block): Require it.
2253         * combine.c (find_single_use, reg_dead_at_p): Use CFG.
2254         (combine_instructions): Track basic blocks instead of labels.
2255         (update_cfg_for_uncondjump): New.
2256         (try_combine): Use it.  Update jumps after rescanning.
2257         (pass_combine): Require PROP_cfglayout.
2258         * passes.c (pass_outof_cfg_layout_mode): Move after regmove.
2259
2260 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2261
2262         * cfglayout.c (pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode):
2263         Provide/destroy PROP_cfglayout respectively.
2264         * gcse.c (pass_jump_bypass, pass_gcse): Require it.
2265         * tree-pass.h (PROP_cfglayout): New.
2266
2267 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2268
2269         * fold-const.c (const_binop, fold_convert_const_real_from_fixed,
2270         fold_convert_const_fixed_from_fixed,
2271         fold_convert_const_fixed_from_int,
2272         fold_convert_const_fixed_from_real, fold_negate_const): Do not
2273         set TREE_CONSTANT_OVERFLOW.
2274         * tree.def: Remove mention of TREE_CONSTANT_OVERFLOW.
2275         * tree.h (TREE_CONSTANT_OVERFLOW): Delete.
2276
2277 2009-03-30  Ira Rosen  <irar@il.ibm.com>
2278
2279         * tree-vect-loop-manip.c: New file.
2280         * tree-vectorizer.c: Update documentation and included files.
2281         (vect_loop_location): Make extern.
2282         (rename_use_op): Move to tree-vect-loop-manip.c
2283         (rename_variables_in_bb, rename_variables_in_loop, 
2284         slpeel_update_phis_for_duplicate_loop, 
2285         slpeel_update_phi_nodes_for_guard1,
2286         slpeel_update_phi_nodes_for_guard2, slpeel_make_loop_iterate_ntimes,
2287         slpeel_tree_duplicate_loop_to_edge_cfg, slpeel_add_loop_guard,
2288         slpeel_can_duplicate_loop_p, slpeel_verify_cfg_after_peeling,
2289         set_prologue_iterations, slpeel_tree_peel_loop_to_edge, 
2290         find_loop_location): Likewise.
2291         (new_stmt_vec_info): Move to tree-vect-stmts.c.
2292         (init_stmt_vec_info_vec, free_stmt_vec_info_vec, free_stmt_vec_info,
2293         get_vectype_for_scalar_type, vect_is_simple_use,
2294         supportable_widening_operation, supportable_narrowing_operation):
2295         Likewise.
2296         (bb_in_loop_p): Move to tree-vect-loop.c.
2297         (new_loop_vec_info, destroy_loop_vec_info, 
2298         reduction_code_for_scalar_code, report_vect_op, 
2299         vect_is_simple_reduction, vect_is_simple_iv_evolution): Likewise.
2300         (vect_can_force_dr_alignment_p): Move to tree-vect-data-refs.c.
2301         (vect_supportable_dr_alignment): Likewise.
2302         * tree-vectorizer.h (tree-data-ref.h): Include.
2303         (vect_loop_location): Declare.
2304         Reorganize function declarations according to the new file structure.
2305         * tree-vect-loop.c: New file.
2306         * tree-vect-analyze.c: Remove. Move functions to tree-vect-data-refs.c, 
2307         tree-vect-stmts.c, tree-vect-slp.c, tree-vect-loop.c.
2308         * tree-vect-data-refs.c: New file.
2309         * tree-vect-patterns.c (timevar.h): Don't include.
2310         * tree-vect-stmts.c: New file.
2311         * tree-vect-transform.c: Remove. Move functions to tree-vect-stmts.c, 
2312         tree-vect-slp.c, tree-vect-loop.c.
2313         * Makefile.in (OBJS-common): Remove tree-vect-analyze.o and 
2314         tree-vect-transform.o. Add tree-vect-data-refs.o, tree-vect-stmts.o, 
2315         tree-vect-loop.o, tree-vect-loop-manip.o, tree-vect-slp.o.
2316         (tree-vect-analyze.o): Remove.
2317         (tree-vect-transform.o): Likewise.
2318         (tree-vect-data-refs.o): Add rule.
2319         (tree-vect-stmts.o, tree-vect-loop.o, tree-vect-loop-manip.o, 
2320         tree-vect-slp.o): Likewise.
2321         (tree-vect-patterns.o): Remove redundant dependencies.
2322         (tree-vectorizer.o): Likewise.
2323         * tree-vect-slp.c: New file.
2324
2325 2009-03-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2326
2327         * optc-gen.awk: Warn if an option flag has multiple different
2328         help strings.
2329
2330 2009-03-30  Sebastian Pop  <sebastian.pop@amd.com>
2331
2332         * doc/invoke.texi (-floop-interchange, -floop-strip-mine,
2333         -floop-block): Document dependences on PPL, CLooG and Graphite.
2334
2335 2009-03-30  Joseph Myers  <joseph@codesourcery.com>
2336
2337         PR rtl-optimization/323
2338         * c-common.c (c_fully_fold, convert_and_check,
2339         c_common_truthvalue_conversion): Handle EXCESS_PRECISION_EXPR.
2340         (c_fully_fold_internal): Disallow EXCESS_PRECISION_EXPR.
2341         * c-common.def (EXCESS_PRECISION_EXPR): New.
2342         * c-cppbuiltin.c (builtin_define_float_constants): Define
2343         constants with enough digits for long double.
2344         * c-lex.c (interpret_float): Interpret constant with excess
2345         precision where appropriate.
2346         * c-opts.c (c_common_post_options): Set
2347         flag_excess_precision_cmdline.  Give an error for
2348         -fexcess-precision=standard for C++ for processors where the
2349         option is significant.
2350         * c-parser.c (c_parser_conditional_expression): Handle excess
2351         precision in condition.
2352         * c-typeck.c (convert_arguments): Handle arguments with excess
2353         precision.
2354         (build_unary_op): Move excess precision outside operation.
2355         (build_conditional_expr): Likewise.
2356         (build_compound_expr): Likewise.
2357         (build_c_cast): Do cast on operand of EXCESS_PRECISION_EXPR.
2358         (build_modify_expr): Handle excess precision in RHS.
2359         (convert_for_assignment): Handle excess precision in converted
2360         value.
2361         (digest_init, output_init_element, process_init_element): Handle
2362         excess precision in initializer.
2363         (c_finish_return): Handle excess precision in return value.
2364         (build_binary_op): Handle excess precision in operands and add
2365         excess precision as needed for operation.
2366         * common.opt (-fexcess-precision=): New option.
2367         * config/i386/i386.h (X87_ENABLE_ARITH, X87_ENABLE_FLOAT): New.
2368         * config/i386/i386.md (float<SSEMODEI24:mode><X87MODEF:mode>2):
2369         For standard excess precision, output explicit conversion to and
2370         truncation from XFmode.
2371         (*float<SSEMODEI24:mode><X87MODEF:mode>2_1,
2372         *float<SSEMODEI24:mode><X87MODEF:mode>2_i387_with_temp,
2373         *float<SSEMODEI24:mode><X87MODEF:mode>2_i387, two unnamed
2374         define_splits, floatdi<X87MODEF:mode>2_i387_with_xmm, two unnamed
2375         define_splits, *floatunssi<mode>2_1, two unnamed define_splits,
2376         floatunssi<mode>2, add<mode>3, sub<mode>3, mul<mode>3, divdf3,
2377         divsf3, *fop_<mode>_comm_i387, *fop_<mode>_1_i387,
2378         *fop_<MODEF:mode>_2_i387, *fop_<MODEF:mode>_3_i387,
2379         *fop_df_4_i387, *fop_df_5_i387, *fop_df_6_i387, two unnamed
2380         define_splits, sqrt<mode>2): Disable where appropriate for
2381         standard excess precision.
2382         * convert.c (convert_to_real): Do not shorten arithmetic to type
2383         for which excess precision would be used.
2384         * defaults.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Define.
2385         * doc/invoke.texi (-fexcess-precision=): Document option.
2386         (-mfpmath=): Correct index entry.
2387         * flags.h (enum excess_precision, flag_excess_precision_cmdline,
2388         flag_excess_precision): New.
2389         * langhooks.c (lhd_post_options): Set
2390         flag_excess_precision_cmdline.
2391         * opts.c (common_handle_option): Handle -fexcess-precision=.
2392         * toplev.c (flag_excess_precision_cmdline, flag_excess_precision,
2393         init_excess_precision): New.
2394         (lang_dependent_init_target): Call init_excess_precision.
2395         * tree.c (excess_precision_type): New.
2396         * tree.h (excess_precision_type): Declare.
2397
2398 2009-03-30  Joseph Myers  <joseph@codesourcery.com>
2399
2400         PR c/35235
2401         * c-typeck.c (build_component_ref): Do not copy qualifiers from
2402         non-lvalue to component.
2403
2404 2009-03-29  Joseph Myers  <joseph@codesourcery.com>
2405
2406         PR preprocessor/34695
2407         * Makefile.in (c-opts.o): Depend on c-tree.h.
2408         * c-common.c: Move down include of diagnostic.h.
2409         (done_lexing, c_cpp_error): New.
2410         * c-common.h (done_lexing): Declare.
2411         * c-decl.c (c_write_global_declarations): Don't check cpp_errors
2412         (parse_in).
2413         * c-opts.c: Include c-tree.h.
2414         (c_common_init_options): Set preprocessor error callback.
2415         (c_common_handle_option): Do not set preprocessor
2416         inhibit_warnings, warnings_are_errors, warn_system_headers,
2417         pedantic_errors or inhibit_warnings flags.
2418         (c_common_post_options): Do not check cpp_errors (parse_in).
2419         (c_common_finish): Do not output dependencies if there were
2420         errors.  Do not check return value of cpp_finish.
2421         * c-ppoutput.c (pp_file_change): Set input_location.
2422         * c-tree.h (c_cpp_error): Declare.
2423         * diagnostic.c (diagnostic_set_info_translated): Also initialize
2424         override_column.
2425         (diagnostic_build_prefix): Check override_column.
2426         * diagnostic.h (diagnostic_info): Add override_column field.
2427         (diagnostic_override_column): Define.
2428
2429 2009-03-28  Paolo Bonzini  <bonzini@gnu.org>
2430
2431         * c-common.c (c_expand_expr, c_staticp): Remove.
2432         * c-common.def (COMPOUND_LITERAL_EXPR): Delete.
2433         * c-common.h (emit_local_var, c_staticp, COMPOUND_LITERAL_EXPR_DECL,
2434         COMPOUND_LITERAL_EXPR_DECL_EXPR): Remove.
2435         * c-gimplify.c (gimplify_compound_literal_expr,
2436         optimize_compound_literals_in_ctor): Remove.
2437         (c_gimplify_expr): Remove COMPOUND_LITERAL_EXPR handling.
2438         * c-objc-common.h (LANG_HOOKS_STATICP): Remove.
2439         * c-semantics.c (emit_local_var): Remove.
2440
2441         * langhooks-def.h (lhd_expand_expr): Remove.
2442         * langhooks.c (lhd_expand_expr): Remove.
2443         * langhooks.h (LANG_HOOKS_DEF): Remove LANG_HOOKS_EXPAND_EXPR.
2444
2445         * expr.c (expand_expr_real_1): Move COMPOUND_LITERAL_EXPR
2446         handling from c-semantics.c; don't call into langhook.
2447         (expand_expr_addr_expr_1): Check that we don't get non-GENERIC trees.
2448         * gimplify.c (gimplify_compound_literal_expr,
2449         optimize_compound_literals_in_ctor): Move from c-gimplify.c.
2450         (gimplify_init_constructor): Call optimize_compound_literals_in_ctor.
2451         (gimplify_modify_expr_rhs, gimplify_expr): Handle COMPOUND_LITERAL_EXPR
2452         as was done in c-gimplify.c.
2453         * tree.c (staticp): Move COMPOUND_LITERAL_EXPR handling from c_staticp.
2454         * tree.h (COMPOUND_LITERAL_EXPR_DECL, COMPOUND_LITERAL_EXPR_DECL_EXPR):
2455         Move from c-common.h.
2456         * tree.def (COMPOUND_LITERAL_EXPR): Move from c-common.def.
2457
2458         * tree.c (staticp): Do not call langhook.
2459         * langhooks.c (lhd_staticp): Delete.
2460         * langhooks-def.h (lhd_staticp): Delete prototype.
2461         (LANG_HOOKS_STATICP): Delete.
2462         (LANG_HOOKS_INITIALIZER): Delete LANG_HOOKS_STATICP.
2463
2464         * doc/c-tree.texi (Expression nodes): Refer to DECL_EXPRs
2465         instead of DECL_STMTs.
2466
2467 2009-03-29  Joseph Myers  <joseph@codesourcery.com>
2468
2469         PR c/456
2470         PR c/5675
2471         PR c/19976
2472         PR c/29116
2473         PR c/31871
2474         PR c/35198
2475         * builtins.c (fold_builtin_sincos): Build COMPOUND_EXPR in
2476         void_type_node.
2477         (fold_call_expr): Return a NOP_EXPR from folding rather than the
2478         contained expression.
2479         * c-common.c (c_fully_fold, c_fully_fold_internal, c_save_expr): New.
2480         (c_common_truthvalue_conversion): Use c_save_expr.  Do not fold
2481         conditional expressions for C.
2482         (decl_constant_value_for_optimization): Move from
2483         decl_constant_value_for_broken_optimization in c-typeck.c.  Check
2484         whether optimizing and that the expression is a VAR_DECL not of
2485         array type instead of doing such checks in the caller.  Do not
2486         check pedantic.  Call gcc_unreachable for C++.
2487         * c-common.def (C_MAYBE_CONST_EXPR): New.
2488         * c-common.h (c_fully_fold, c_save_expr,
2489         decl_constant_value_for_optimization): New prototypes.
2490         (C_MAYBE_CONST_EXPR_PRE, C_MAYBE_CONST_EXPR_EXPR,
2491         C_MAYBE_CONST_EXPR_INT_OPERANDS, C_MAYBE_CONST_EXPR_NON_CONST,
2492         EXPR_INT_CONST_OPERANDS): Define.
2493         * c-convert.c (convert): Strip nops from expression.
2494         * c-decl.c (groktypename): Take extra parameters expr and
2495         expr_const_operands.  Update call to grokdeclarator.
2496         (start_decl): Update call to grokdeclarator.  Add statement for
2497         expressions used in type of decl.
2498         (grokparm): Update call to grokdeclarator.
2499         (push_parm_decl): Update call to grokdeclarator.
2500         (build_compound_literal): Add parameter non_const and build a
2501         C_MAYBE_COSNT_EXPR if applicable.
2502         (grokdeclarator): Take extra parameters expr and
2503         expr_const_operands.  Track expressions used in declaration
2504         specifiers and declarators.  Fold array sizes and track whether
2505         they are constant expressions and whether they are integer
2506         constant expressions.
2507         (parser_xref_tag): Set expr and expr_const_operands fields in
2508         return value.
2509         (grokfield): Update call to grokdeclarator.
2510         (start_function): Update call to grokdeclarator.
2511         (build_null_declspecs): Set expr and expr_const_operands fields in
2512         return value.
2513         (declspecs_add_type): Handle expressions in typeof specifiers.
2514         * c-parser.c (c_parser_declspecs): Set expr and
2515         expr_const_operands fields for declaration specifiers.
2516         (c_parser_enum_specifier): Likewise.
2517         (c_parser_struct_or_union_specifier): Likewise.
2518         (c_parser_typeof_specifier): Likewise.  Update call to
2519         groktypename.  Fold expression as needed.  Return expressions with
2520         type instead of adding statements.
2521         (c_parser_attributes): Update calls to c_parser_expr_list.
2522         (c_parser_statement_after_labels): Fold expression before passing
2523         to objc_build_throw_stmt.
2524         (c_parser_condition): Fold expression.
2525         (c_parser_asm_operands): Fold expression.
2526         (c_parser_conditional_expression): Use c_save_expr.  Update call
2527         to build_conditional_expr.
2528         (c_parser_alignof_expression): Update call to groktypename.
2529         (c_parser_postfix_expression): Preserve C_MAYBE_CONST_EXPR as
2530         original_code.  Fold expression argument of va_arg.  Create
2531         C_MAYBE_CONST_EXPR to preserve side effects of expressions in type
2532         argument to va_arg.  Update calls to groktypename.  Fold array
2533         index for offsetof.  Verify that first argument to
2534         __builtin_choose_expr has integer type.
2535         (c_parser_postfix_expression_after_paren_type): Update calls to
2536         groktypename and build_compound_literal.  Handle expressions with
2537         side effects in type name.
2538         (c_parser_postfix_expression_after_primary): Update call to
2539         c_parser_expr_list.  Set original_code for calls to
2540         __builtin_constant_p.
2541         (c_parser_expr_list): Take extra parameter fold_p.  Fold
2542         expressions if requested.
2543         (c_parser_objc_type_name): Update call to groktypename.
2544         (c_parser_objc_synchronized_statement): Fold expression.
2545         (c_parser_objc_receiver): Fold expression.
2546         (c_parser_objc_keywordexpr): Update call to c_parser_expr_list.
2547         (c_parser_omp_clause_num_threads, c_parser_omp_clause_schedule,
2548         c_parser_omp_atomic, c_parser_omp_for_loop): Fold expressions.
2549         * c-tree.h (CONSTRUCTOR_NON_CONST): Define.
2550         (struct c_typespec): Add elements expr and expr_const_operands.
2551         (struct c_declspecs): Add elements expr and expr_const_operands.
2552         (groktypename, build_conditional_expr, build_compound_literal):
2553         Update prototypes.
2554         (in_late_binary_op): Declare.
2555         * c-typeck.c (note_integer_operands): New function.
2556         (in_late_binary_op): New variable.
2557         (decl_constant_value_for_broken_optimization): Move to c-common.c
2558         and rename to decl_constant_value_for_optimization.
2559         (default_function_array_conversion): Do not strip nops.
2560         (default_conversion): Do not call
2561         decl_constant_value_for_broken_optimization.
2562         (build_array_ref): Do not fold result.
2563         (c_expr_sizeof_expr): Fold operand.  Use C_MAYBE_CONST_EXPR for
2564         result when operand is a VLA.
2565         (c_expr_sizeof_type): Update call to groktypename.  Handle
2566         expressions included in type name.  Use C_MAYBE_CONST_EXPR for
2567         result when operand names a VLA type.
2568         (build_function_call): Update call to build_compound_literal.
2569         Only fold result for calls to __builtin_* functions.  Strip
2570         NOP_EXPR from INTEGER_CST returned from such functions.  Fold
2571         the function designator.
2572         (convert_arguments): Fold arguments.  Update call to
2573         convert_for_assignment.
2574         (build_unary_op): Handle increment and decrement of
2575         C_MAYBE_CONST_EXPR.  Move lvalue checks for increment and
2576         decrement earlier.  Fold operand of increment and decrement.
2577         Handle address of C_MAYBE_CONST_EXPR.  Only fold expression being
2578         built for integer operand.  Wrap returns that are INTEGER_CSTs
2579         without being integer constant expressions or that have integer
2580         constant operands without being INTEGER_CSTs.
2581         (lvalue_p): Handle C_MAYBE_CONST_EXPR.
2582         (build_conditional_expr): Add operand ifexp_bcp.  Track whether
2583         result is an integer constant expression or can be used in
2584         unevaluated parts of one and avoid folding and wrap as
2585         appropriate.  Fold operands before possibly doing -Wsign-compare
2586         warnings.
2587         (build_compound_expr): Wrap result for C99 if operands can be used
2588         in integer constant expressions.
2589         (build_c_cast): Update call to digest_init.  Do not ignore
2590         overflow from casting floating-point constants to integers.  Wrap
2591         results that could be confused with integer constant expressions,
2592         null pointer constants or floating-point constants.
2593         (c_cast_expr): Update call to groktypename.  Handle expressions
2594         included in type name.
2595         (build_modify_expr): Handle modifying a C_MAYBE_CONST_EXPR.  Fold
2596         lhs inside possible SAVE_EXPR.  Fold RHS before assignment.
2597         Update calls to convert_for_assignment.
2598         (convert_for_assignment): Take new parameter
2599         null_pointer_constant.  Do not strip nops or call
2600         decl_constant_value_for_broken_optimization.  Set
2601         in_late_binary_op for conversions to boolean.
2602         (store_init_value): Update call to digest_init.
2603         (digest_init): Take new parameter null_pointer_constant.  Do not
2604         call decl_constant_value_for_broken_optimization.  pedwarn for
2605         initializers not constant expressions.  Update calls to
2606         convert_for_assignment.
2607         (constructor_nonconst): New.
2608         (struct constructor_stack): Add nonconst element.
2609         (really_start_incremental_init, push_init_level, pop_init_level):
2610         Handle constructor_nonconst and nonconst element.
2611         (set_init_index): Call constant_expression_warning for array
2612         designators.
2613         (output_init_element): Fold value.  Set constructor_nonconst as
2614         applicable.  pedwarn for initializers not constant expressions.
2615         Update call to digest_init.  Call constant_expression_warning
2616         where constant initializers are required.
2617         (process_init_element): Use c_save_expr.
2618         (c_finish_goto_ptr): Fold expression.
2619         (c_finish_return): Fold return value.  Update call to
2620         convert_for_assignment.
2621         (c_start_case): Fold switch expression.
2622         (c_process_expr_stmt): Fold expression.
2623         (c_finish_stmt_expr): Create C_MAYBE_CONST_EXPR as needed to
2624         ensure statement expression is not evaluated in constant expression.
2625         (build_binary_op): Track whether results are integer constant
2626         expressions or may occur in such, disable folding and wrap results
2627         as applicable.  Fold operands for -Wsign-compare warnings unless
2628         in_late_binary_op.
2629         (c_objc_common_truthvalue_conversion): Handle results folded to
2630         integer constants that are not integer constant expressions.
2631         * doc/extend.texi: Document when typeof operands are evaluated,
2632         that condition of __builtin_choose_expr is an integer constant
2633         expression, and more about use of __builtin_constant_p in
2634         initializers.
2635
2636 2009-03-29  Richard Guenther  <rguenther@suse.de>
2637
2638         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Properly
2639         propagate addresses of array references.
2640
2641 2009-03-29  Steven Bosscher  <steven@gcc.gnu.org>
2642
2643         * regmove.c (perhaps_ends_bb_p): Remove.
2644         (optimize_reg_copy_1): Don't call perhaps_ends_bb_p.  Get basic block
2645         from INSN and check that the main loop stays within that basic block.
2646         (optimize_reg_copy_1, optimize_reg_copy_3, fixup_match_2): Likewise.
2647         (regmove_forward_pass): Split out from regmove_optimize.  Use
2648         FOR_EACH_BB and FOR_BB_INSNS instead of traversing the insns stream.
2649         (regmove_backward_pass): Split out from regmove_optimize.  Use
2650         FOR_EACH_BB_REVERSE and FOR_BB_INSNS_REVERS_SAFE.
2651         (regmove_optimize): Simplify.
2652
2653 2009-03-29  H.J. Lu  <hongjiu.lu@intel.com>
2654
2655         PR target/39545
2656         * config/i386/i386.c (classify_argument): Ignore flexible array
2657         member in struct and warn ABI change.
2658
2659 2009-03-29  H.J. Lu  <hongjiu.lu@intel.com>
2660
2661         * config/i386/i386-protos.h (ix86_agi_dependent): New.
2662
2663         * config/i386/i386.c (ix86_agi_dependent): Rewrite.
2664         (ix86_adjust_cost): Updated.
2665
2666 2009-03-29  Jan Hubicka  <jh@suse.cz>
2667
2668         PR middle-end/28850
2669         * tree-pass.h (pass_cleanup_eh): New function.
2670         (remove_unreachable_regions): Break code handling RTL
2671         to rtl_remove_unreachable_regions; remove ERT_MUST_NOT_THROW
2672         that can not be reached by runtime.
2673         (can_be_reached_by_runtime): New function.
2674         (label_to_region_map): New function.
2675         (num_eh_regions): New function.
2676         (rtl_remove_unreachable_regions): New function.
2677         (convert_from_eh_region_ranges): Call rtl_remove_unreachable_regions.
2678         (remove_eh_region): New function.
2679         * except.h: Include sbitmap and vecprim.
2680         (remove_eh_region, remove_unreachable_regions, label_to_region_map,
2681         num_eh_regions): Declare.
2682         * passes.c (init_optimization_passes): Schedule cleanup_eh.
2683         * Makefile.in (EXCEPT_H): New; replace all uses of except.h by it.
2684         * tree-eh.c (tree_remove_unreachable_handlers): New function.
2685         (tree_empty_eh_handler_p): New function.
2686         (cleanup_empty_eh): New function.
2687         (cleanup_eh): New function.
2688         (pass_cleanup_eh): New function.
2689
2690 2009-03-29  Jan Hubicka  <jh@suse.cz>
2691
2692         * except.c (verify_eh_tree): Fix handling of fun!=cfun; be ready
2693         for removed regions.
2694
2695 2009-03-29  Jan Hubicka  <jh@suse.cz>
2696
2697         * except.c (dump_eh_tree): Dump all datastructures.
2698
2699 2009-03-29  Jan Hubicka  <jh@suse.cz>
2700
2701         * except.c (duplicate_eh_regions_0): Handle AKA bitmap.
2702         (duplicate_eh_regions_1): Likewise.
2703         (duplicate_eh_regions): Likewise; cleanup code gorwing the region
2704         vector; call EH verification.
2705         (foreach_reachable_handler, can_throw_internal_1, can_throw_external_1):
2706         Be ready for region being removed.
2707
2708 2009-03-29  Jan Hubicka  <jh@suse.cz>
2709
2710         * bitmap.c (bitmap_last_set_bit): New function.
2711         * bitmap.h (bitmap_last_set_bit): Declare.
2712
2713 2009-03-29  David Ayers  <ayers@fsfe.org>
2714
2715         PR objc/27377
2716         * c-typeck.c (build_conditional_expr): Emit ObjC warnings
2717         by calling objc_compare_types and surpress warnings about
2718         incompatible C pointers that are compatible ObjC pointers.
2719         
2720 2009-03-29  Adam Nemet  <anemet@caviumnetworks.com>
2721
2722         * cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges): Don't
2723         call initialize_inline_failed.
2724         (initialize_inline_failed): Move it from here ...
2725         * cgraph.c (initialize_inline_failed): ... to here.
2726         (cgraph_create_edge): Call initialize_inline_failed rather than
2727         setting inline_failed directly.
2728
2729 2009-03-29  Ben Elliston  <bje@au.ibm.com>
2730
2731         PR target/32542
2732         * sysv4.opt (msdata): Improve comment.
2733         * linux64.h (ASM_SPEC32): Do not pass -memb when -msdata is given.
2734         * sysv4.h (SVR4_ASM_SPEC): Likewise.
2735
2736 2009-03-29  Ben Elliston  <bje@au.ibm.com>
2737
2738         PR target/30451
2739         * config/rs6000/rs6000.md (*movti_ppc64): Correct the order of
2740         load and store attributes.
2741
2742 2009-03-29  Ben Elliston  <bje@au.ibm.com>
2743
2744         * config/i386/i386.c (enum ix86_builtins): Add IX86_BUILTIN_HUGE_VALQ.
2745         (ix86_init_builtins): Add built-in function __builtin_huge_valq.
2746         (ix86_expand_builtin): Handle IX86_BUILTIN_HUGE_VALQ.
2747         * doc/extend.texi (X86 Built-in Functions): Add index entries for
2748         __builtin_infq and __builtin_huge_valq.
2749
2750 2009-03-28  Anatoly Sokolov  <aesok@post.ru>
2751
2752         * config/avr/avr.c (avr_mcu_t): Add atmega8c1, atmega16c1 and
2753         atmega8m1 devices.
2754         * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
2755         * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.)
2756
2757 2009-03-28  Xinliang David Li  <davidxl@google.com>
2758
2759         * tree-ssa-ccp.c (ccp_finalize): Add dbg_count support. 
2760         (do_dbg_cnt): New function.
2761
2762 2009-03-28  Jan Hubicka  <jh@suse.cz>
2763
2764         Merge from pretty-ipa:
2765
2766         2009-03-27  Jan Hubicka  <jh@suse.cz>
2767
2768         * cgraph.c (dump_cgraph_node): Add replace output flag by process.
2769         * tree-pass.h (function_called_by_processed_nodes_p): Declare.
2770         * passes.c (function_called_by_processed_nodes_p): New.
2771         * ipa-pure-const.c (check_call): Fix handling of operands.
2772         (analyze_function): Dump debug output for skipped bodies.
2773         (local_pure_const): Use function_called_by_processed_nodes_p.
2774         * dwarf2out.c (reference_to_unused): Use output.
2775         * passes.c (do_per_function_toporder): Likewise.
2776
2777         2008-11-12  Jan Hubicka  <jh@suse.cz>
2778
2779         * tree-pass.h (pass_fixup_cfg, pass_local_pure_const): Declare.
2780         * ipa-pure-const.c (funct_state_d): Add can throw field; make
2781         state_set_in_source enum
2782         (check_decl): Ignore memory tags; do not set fake looping flags;
2783         dump diagnostics.
2784         (check_operand, check_tree, check_rhs_var, check_lhs_var,
2785         get_asm_expr_operands, scan_function_op, scan_function_stmt): Remove.
2786         (check_call, analyze_function): Rewrite.
2787         (check_stmt): New.
2788         (add_new_function): Update call of analyze_function.
2789         (generate_summary): Add call of analyze_function.
2790         (propagate): Propagate can_throw; handle state_set_in_source correctly.
2791         (local_pure_const): New function.
2792         (pass_local_pure_const): New pass.
2793         * ipa-inline.c (inline_transform): Set after_inlining.
2794         * tree-eh.c (stmt_can_throw_external): New.
2795         * tree-optimize.c (execute_fixup_cfg): Do not set after_inlining;
2796         work with aliasing built.
2797         * tree-flow.h (stmt_can_throw_external): New.
2798         * passes.c (init_optimization_passes): Schedule fixup_cfg pass early;
2799         and local pure/const pass in early and late optimization queue.
2800
2801 2009-03-28  Martin Jambor  <mjambor@suse.cz>
2802
2803         * fold-const.c (get_pointer_modulus_and_residue): New parameter
2804         allow_func_align.
2805         (fold_binary): Allow function decl aligment consideration is the
2806         second argument is integer constant one.
2807         * tree-ssa-forwprop.c (simplify_bitwise_and): New function.
2808         (tree_ssa_forward_propagate_single_use_vars): Handle assing statements
2809         with BIT_AND_EXPR on the RHS by calling simplify_bitwise_and.
2810
2811 2009-03-28  Jan Hubicka  <jh@suse.cz>
2812
2813         * dwarf2out.c (dwarf2out_begin_prologue): Use crtl->nothrow
2814         * tree-eh.c (stmt_could_throw_p): Remove check for WEAK decls.
2815         * function.h (rtl_data): Add nothrow flag.
2816         * except.c (set_nothrow_function_flags): Use crtl->nothrow;
2817         set DECL_NOTHROW for AVAILABLE functions.
2818
2819 2009-03-28  Jakub Jelinek  <jakub@redhat.com>
2820
2821         * config/rs6000/rs6000-c.c (rs6000_macro_to_expand): If macro
2822         following vector keyword has expansion starting with pixel or bool
2823         keyword, expand vector to __vector and pixel or bool to __pixel or
2824         __bool.
2825
2826         PR c++/39554
2827         * opts.c (warning_disallowed_functions, warn_disallowed_functions,
2828         warn_if_disallowed_function_p): Removed.
2829         (common_handle_option): Don't handle OPT_Wdisallowed_function_list_.
2830         * c-parser.c (c_parser_postfix_expression_after_primary): Don't call
2831         warning_if_disallowed_function_p.
2832         * flags.h (warn_if_disallowed_function_p,
2833         warn_disallowed_functions): Removed.
2834         * common.opt (Wdisallowed-function-list=): Removed.
2835         * doc/invoke.texi (-Wdisallowed-function-list=): Removed.
2836
2837 2009-03-28  Richard Guenther  <rguenther@suse.de>
2838
2839         PR tree-optimization/38723
2840         * tree-ssa-pre.c (compute_avail): Add all default definitions to
2841         the entry block.
2842
2843 2009-03-28  Jan Hubicka  <jh@suse.cz>
2844
2845         * tree-ssa-structalias.c (ipa_pta_execute): Fix bogus node->analyzed
2846         test introduced by my previous patch.
2847
2848 2009-03-28  Richard Guenther  <rguenther@suse.de>
2849
2850         * tree-ssa-copy.c (copy_prop_visit_phi_node): Do not leave
2851         the PHIs value undefined.
2852
2853 2009-03-28  Jan Hubicka  <jh@suse.cz>
2854
2855         * tree-pass.h (pass_fixup_cfg): New pass.
2856         * ipa-inline.c (inline_transform): Set
2857         always_inline_functions_inlined/after_inlining.
2858         * tree-optimize.c (execute_fixup_cfg): Do not set them here.
2859         (pass_fixup_cfg): New pass.
2860         * passes.c (init_optimization_passes): Add fixup_cfg.
2861
2862 2009-03-28  Richard Guenther  <rguenther@suse.de>
2863
2864         PR tree-optimization/38458
2865         * tree-ssa-copy.c (copy_prop_visit_phi_node): For the first
2866         argument use the arguments copy-of value.
2867
2868 2009-03-28  Richard Guenther  <rguenther@suse.de>
2869
2870         PR tree-optimization/38180
2871         * tree-ssa-ccp.c (get_default_value): Simplify.
2872         (likely_value): Likewise.
2873         (surely_varying_stmt_p): Properly handle VOP case.
2874         (ccp_initialize): Likewise.
2875         (ccp_fold): Handle propagating through *&.
2876         (fold_const_aggregate_ref): Also handle decls.
2877
2878 2009-03-28  Jan Hubicka  <jh@suse.cz>
2879
2880         * cgraph.c (dump_cgraph_node): Add replace output flag by process.
2881         * cgraph.h (cgraph_node): Likewise.
2882         * cgraphunit.c (cgraph_process_new_functions): Set process flag.
2883         (cgraph_reset_node): Use process flag.
2884         (cgraph_mark_functions_to_output): Likewise.
2885         (cgraph_expand_function): Likewise.
2886         (cgraph_expand_all_functions): Likewise.
2887         (cgraph_output_in_order): Likewise.
2888         * dwarf2out.c (reference_to_unused): Likewise.
2889         * passes.c do_per_function_toporder): Likewise.
2890
2891 2009-03-28  Jan Hubicka  <jh@suse.cz>
2892
2893         Bring from lto-branch:
2894
2895         2008-09-03  Doug Kwan  <dougkwan@google.com>
2896
2897         * cgraphbuild.c (initialize_inline_failed): Use cgraph_inline_failed_t
2898         enums instead of reason strings.
2899         * cgraph.c (cgraph_create_edge): Same.
2900         (cgraph_inline_failed_string): New function.
2901         * cgraph.h (cgraph_inline_failed_t): New enum type.
2902         (cgraph_inline_failed_string): New prototype.
2903         (struct cgraph_edge): Change type of INLINED_FAILED from constant
2904         char pointer to cgraph_inline_failed_t.
2905         (cgraph_inline_p): Adjust prototype to use cgraph_inline_failed_t.
2906         (cgraph_default_inline_p): Ditto.
2907         * gcc/cgraphunit.c (cgraph_inline_p): Change type of parameter REASON
2908         to cgraph_inline_failed_t pointer.
2909         * cif-code.def: New file.
2910         * ipa-inline.c (cgraph_mark_inline_edge): Use an enum instead of a
2911         reason string.
2912         (cgraph_check_inline_limits): Change type of REASON to pointer to
2913         cgraph_inline_failed_t.  Replace reason strings with enums.
2914         (cgraph_default_inline_p): Ditto.
2915         (cgraph_recursive_inlining_p): Ditto.
2916         (update_caller_keys): Change type of FAILED_REASON to
2917         cgraph_inline_failed_t.
2918         (cgraph_set_inline_failed): Change type of REASON to pointer to
2919         cgraph_inline_failed_t.  Call cgraph_inline_failed_string to
2920         convert enums to strings for text output.
2921         (cgraph_decide_inlining_of_small_function): Change FAILED_REASON
2922         to be of type cgraph_inline_failed_t.  Replace reason strings with
2923         enums.  Call cgraph_inline_failed_string to covert enums
2924         to strings for text output.
2925         (cgraph_decide_inlining): Replace reason strings with enums.
2926         (cgraph_decide_inlining_incrementally): Change type of FAILED_REASON
2927         to cgraph_inline_failed_t type.  Call cgraph_inline_failed_string
2928         for text output.
2929         * tree-inline.c (expand_call_inline): Change type of REASON
2930         to cgraph_inline_failed_t.  Replace reason strings with enums.
2931         Call cgraph_inline_failed_string for text output.
2932         * Makefile.in (CGRAPH_H): Add cif-code.def to dependencies.
2933         (cgraph.o): Ditto.
2934
2935 2009-03-28  Jan Hubicka  <jh@suse.cz>
2936
2937         * cgraph.c (cgraph_node, cgraph_remove_node, dump_cgraph_node,
2938         cgraph_clone_node): Remove master clone handling.
2939         (cgraph_is_master_clone, cgraph_master_clone): Remove.
2940         * cgraph.h (master_clone): Remove.
2941         (cgraph_is_master_clone, cgraph_master_clone): Remove.
2942         * ipa-type-escape.c (type_escape_execute): Remove use of master clone.
2943         (tree-ssa-structalias.c (ipa_pta_execute): Likewise.
2944
2945 2009-03-28  Jan Hubicka  <jh@suse.cz>
2946
2947         * cgraph.c (cgraph_function_body_availability): Functions declared
2948         inline are always safe to assume that it is not going to be replaced.
2949
2950 2009-03-28  Richard Guenther  <rguenther@suse.de>
2951
2952         PR tree-optimization/38513
2953         * tree-ssa-pre.c (eliminate): Remove redundant stores.
2954         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
2955         EXC_PTR_EXPR and FILTER_EXPR.
2956         (get_ref_from_reference_ops): Likewise.
2957
2958 2009-03-28  Richard Guenther  <rguenther@suse.de>
2959
2960         PR tree-optimization/38968
2961         * tree-vect-analyze.c (vect_compute_data_ref_alignment):
2962         Use FLOOR_MOD_EXPR to compute misalignment.
2963
2964 2009-03-28  Richard Guenther  <rguenther@suse.de>
2965
2966         PR tree-optimization/37795
2967         * tree.h (combine_comparisons): Declare.
2968         * fold-const.c (combine_comparisons): Export.
2969         * tree-ssa-ifcombine.c (ifcombine_ifandif): Optimize two successive
2970         comparisons.
2971         (ifcombine_iforif): Use combine_comparisons.
2972
2973 2009-03-28  Jan Hubicka  <jh@suse.cz>
2974
2975         * tree-eh.c (inlinable_call_p): New function.
2976         (make_eh_edges): Use it.
2977         (verify_eh_edges): Use it.
2978         (stmt_can_throw_external, stmt_can_throw_internal): Use it.
2979         * except.c (reachable_next_level): Add inlinable_function argument
2980         (sjlj_find_directly_reachable_regions): Update.
2981         (add_reachable_handler): Do not set saw_any_handlers.
2982         (reachable_next_level): Handle MUST_NOT_THROW more curefully.
2983         (foreach_reachable_handler, can_throw_internal_1, can_throw_external_1):
2984         Add new inlinable call parameter.
2985         (can_throw_internal, can_throw_external): Update.
2986         * except.h (can_throw_internal_1, can_throw_external_1,
2987         foreach_reachable_handler): Update declaration.
2988
2989 2009-03-28  Joseph Myers  <joseph@codesourcery.com>
2990
2991         * config/arm/t-arm-coff, config/h8300/coff.h,
2992         config/i386/i386-aout.h, config/i386/i386-coff.h,
2993         config/libgloss.h, config/m68k/coff.h, config/m68k/m68k-aout.h,
2994         config/pdp11/2bsd.h, config/rs6000/aix41.h,
2995         config/rs6000/aix41.opt, config/rs6000/t-newas, config/sh/coff.h,
2996         fix-header.c, fixproto, gen-protos.c, protoize.c, scan-decls.c,
2997         scan-types.sh, scan.c, scan.h, sort-protos, sys-protos.h,
2998         sys-types.h: Remove.
2999         * Makefile.in: Remove protoize and fixproto support and references
3000         in comments.
3001         (SYSCALLS.c.X-warn, TARGET_GETGROUPS_T, STMP_FIXPROTO,
3002         PROTOIZE_INSTALL_NAME, UNPROTOIZE_INSTALL_NAME, FIXPROTO_DEFINES):
3003         Remove.
3004         (ALL_HOST_OBJS): Remove $(PROTO_OBJS).
3005         (MOSTLYCLEANFILES): Remove protoize$(exeext) and
3006         unprotoize$(exeext).
3007         (rest.encap): Don't depend on $(STMP_FIXPROTO)
3008         (.PHONY): Don't depend on proto.
3009         (libgcc-support): Don't depend on $(STMP_FIXPROTO).
3010         (proto, PROTO_OBJS, protoize$(exeext), unprotoize$(exeext),
3011         protoize.o, unprotoize.o, SYSCALLS.c.X, test-protoize-simple,
3012         deduced.h, GEN_PROTOS_OBJS, build/gen-protos$(build_exeext),
3013         build/gen-protos.o, build/scan.o, xsys-protos.h,
3014         build/fix-header$(build_exeext), build/fix-header.o,
3015         build/scan-decls.o, fixhdr.ready, stmp-fixproto,
3016         stmp-install-fixproto): Remove.
3017         (mostlyclean): Don't remove xsys-protos.hT, SYSCALLS.c.X,
3018         SYSCALLS.c or fixproto files.
3019         (install-common): Don't install protoize.
3020         (install-headers-tar, install-headers-cpio, install-headers-cp):
3021         Don't depend on $(STMP_FIXPROTO).
3022         (install-mkheaders): Don't depend on $(STMP_FIXPROTO).  Don't
3023         install fixproto files or write out fixproto settings.
3024         (uninstall): Don't uninstall protoize.
3025         * config.gcc (use_fixproto): Remove.
3026         (arm-*-coff*, armel-*-coff*, h8300-*-*, i[34567]86-*-aout*,
3027         i[34567]86-*-coff*, m68k-*-aout*, m68k-*-coff*, pdp11-*-bsd,
3028         rs6000-ibm-aix4.[12]*, powerpc-ibm-aix4.[12]*, sh-*-*): Remove.
3029         * config/m32r/t-linux (STMP_FIXPROTO): Remove.
3030         * config/m68k/m68k.c: Remove M68K_TARGET_COFF-conditional code.
3031         * config/mips/t-iris (FIXPROTO_DEFINES): Remove.
3032         * config/pa/t-pa-hpux (FIXPROTO_DEFINES): Remove.
3033         * config/pdp11/pdp11.c: Remove TWO_BSD-conditional code.
3034         * config/t-svr4 (FIXPROTO_DEFINES): Remove.
3035         * config/t-vxworks (STMP_FIXPROTO): Remove.
3036         * configure.ac (AC_TYPE_GETGROUPS, TARGET_GETGROUPS_T,
3037         STMP_FIXPROTO): Remove.
3038         * config.in, configure: Regenerate.
3039         * crtstuff.c (gid_t, uid_t): Don't undefine.
3040         * doc/install.texi: Change m68k-coff to m68k-elf in example.
3041         (arm-*-coff, arm-*-aout: Remove target entries.
3042         (*-ibm-aix*): Mention removal of support for AIX 4.2 and older.
3043         Remove mention of AIX 4.1.
3044         (m68k-*-*): Remove mention of m68k-*-aout and m68k-*-coff*.
3045         * doc/invoke.texi (Running Protoize): Remove.
3046         * doc/trouble.texi (Actual Bugs): Remove mention of fixproto.
3047         (Protoize Caveats): Remove.
3048         * tsystem.h: Update comments on headers assumed to exist.
3049
3050 2009-03-27  Vladimir Makarov  <vmakarov@redhat.com>
3051
3052         * genautomata.c: Add a new year to the copyright.  Add a new
3053         reference.
3054         (struct insn_reserv_decl): Add comments for member bypass_list.
3055         (find_bypass): Remove.
3056         (insert_bypass): New.
3057         (process_decls): Use insert_bypass.
3058         (output_internal_insn_latency_func): Output all bypasses with the
3059         same input insn in one switch case.
3060
3061         * rtl.def (define_bypass): Describe bypass choice.
3062         * doc/md.texi (define_bypass): Ditto.
3063
3064 2009-03-27  Richard Guenther  <rguenther@suse.de>
3065
3066         * gimplify.c (mark_addressable): Export.
3067         * tree-flow.h (mark_addressable): Declare.
3068         * tree-ssa-loop-manip.c (create_iv): Mark the base addressable.
3069         * tree-ssa.c (verify_phi_args): Verify that address taken
3070         variables have TREE_ADDRESSABLE set.
3071
3072 2009-03-27  Richard Guenther  <rguenther@suse.de>
3073
3074         * fold-const.c (build_fold_addr_expr_with_type_1): Rename back to ...
3075         (build_fold_addr_expr_with_type): ... this.  Remove in_fold handling.
3076         Do not mark decls TREE_ADDRESSABLE.
3077         (build_fold_addr_expr): Adjust.
3078         (fold_addr_expr): Remove.
3079         (fold_unary): Use build_fold_addr_expr.
3080         (fold_comparison): Likewise.
3081         (split_address_to_core_and_offset): Likewise.
3082         * coverage.c (tree_coverage_counter_addr): Mark the array decl
3083         TREE_ADDRESSABLE.
3084         * gimplify.c (mark_addressable): Do not exclude RESULT_DECLs.
3085         (gimplify_modify_expr_to_memcpy): Mark source and destination
3086         addressable.
3087         * omp-low.c (create_omp_child_function): Mark the object decl
3088         TREE_ADDRESSABLE.
3089         (lower_rec_input_clauses): Mark the var we take the address of
3090         TREE_ADDRESSABLE.
3091         (lower_omp_taskreg): Mark the sender decl TREE_ADDRESSABLE.
3092
3093 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3094
3095         PR middle-end/39315
3096         * cfgexpand.c (expand_one_stack_var_at): Change alignment
3097         limit to MAX_SUPPORTED_STACK_ALIGNMENT.
3098
3099 2009-03-27  Richard Guenther  <rguenther@suse.de>
3100
3101         PR tree-optimization/39120
3102         * tree-ssa-structalias.c (handle_rhs_call): Fill out return
3103         constraints.
3104         (handle_lhs_call): Process return constraints.  Add escape
3105         constraints if necessary.
3106         (handle_const_call): Fill out return constraints.  Make nested
3107         case more precise.  Avoid consttmp if possible.
3108         (handle_pure_call): Fill out return constraints.  Avoid
3109         callused if possible.
3110         (find_func_aliases): Simplify call handling.
3111
3112 2009-03-27  Richard Guenther  <rguenther@suse.de>
3113
3114         PR tree-optimization/39120
3115         * tree-ssa-structalias.c (do_sd_constraint): Do not use CALLUSED
3116         as a representative.
3117         (solve_graph): Do propagate CALLUSED.
3118         (handle_pure_call): Use a scalar constraint from CALLUSED for
3119         the return value.
3120         (find_what_p_points_to): CALLUSED shall not appear in poins-to
3121         solutions.
3122
3123 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3124
3125         PR c/39323
3126         * c-common.c (handle_aligned_attribute): Properly check alignment
3127         overflow.  Use (1U << i) instead of (1 << i).
3128
3129         * emit-rtl.c (get_mem_align_offset): Use "unsigned int" for align.
3130
3131         * expr.h (get_mem_align_offset): Updated.
3132
3133         * tree.h (tree_decl_common): Change align to "unsigned int" and
3134         move it before pointer_alias_set.
3135
3136 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3137             Jakub Jelinek  <jakub@redhat.com>
3138
3139         PR target/38034
3140         * config/ia64/sync.md (cmpxchg_rel_<mode>): Replace input
3141         gr_register_operand with gr_reg_or_0_operand.
3142         (cmpxchg_rel_di): Likewise.
3143         (sync_lock_test_and_set<mode>): Likewise.
3144
3145 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3146
3147         * jump.c (rtx_renumbered_equal_p): Use subreg_get_info.
3148         (true_regnum): Likewise.
3149
3150         * rtlanal.c (subreg_info): Moved to ...
3151         * rtl.h (subreg_info): Here.  New.
3152         (subreg_get_info): New.
3153
3154         * rtlanal.c (subreg_get_info): Make it extern.
3155
3156 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3157
3158         PR target/39472
3159         * config/i386/i386.c (ix86_abi): New.
3160         (override_options): Handle -mabi=.
3161         (ix86_function_arg_regno_p): Replace DEFAULT_ABI with ix86_abi.
3162         (ix86_call_abi_override): Likewise.
3163         (init_cumulative_args): Likewise.
3164         (function_arg_advance): Likewise.
3165         (function_arg_64): Likewise.
3166         (function_arg): Likewise.
3167         (ix86_pass_by_reference): Likewise.
3168         (ix86_function_value_regno_p): Likewise.
3169         (ix86_build_builtin_va_list_abi): Likewise.
3170         (setup_incoming_varargs_64): Likewise.
3171         (is_va_list_char_pointer): Likewise.
3172         (ix86_init_machine_status): Likewise.
3173         (ix86_reg_parm_stack_space): Use enum calling_abi on call_abi.
3174         (ix86_function_type_abi): Return enum calling_abi.  Rewrite
3175         for 64bit.  Replace DEFAULT_ABI with ix86_abi.
3176         (ix86_function_abi): Make it static and return enum calling_abi.
3177         (ix86_cfun_abi): Return enum calling_abi.  Replace DEFAULT_ABI
3178         with ix86_abi.
3179         (ix86_fn_abi_va_list): Updated.
3180
3181         * config/i386/i386.h (ix86_abi): New.
3182         (STACK_BOUNDARY): Replace DEFAULT_ABI with ix86_abi.
3183         (CONDITIONAL_REGISTER_USAGE): Likewise.
3184         (CUMULATIVE_ARGS): Change call_abi type to enum calling_abi.
3185         (machine_function): Likewise.
3186
3187         * config/i386/i386.md (untyped_call): Replace DEFAULT_ABI
3188         with ix86_abi.
3189         * config/i386/cygming.h (TARGET_64BIT_MS_ABI): Likewise.
3190         (STACK_BOUNDARY): Likewise.
3191         * config/i386/mingw32.h (EXTRA_OS_CPP_BUILTINS): Likewise.
3192
3193         * config/i386/i386.opt (mabi=): New.
3194
3195         * config/i386/i386-protos.h (ix86_cfun_abi): Changed to
3196         return enum calling_abi.
3197         (ix86_function_type_abi): Likewise.
3198         (ix86_function_abi): Removed.
3199
3200         * doc/invoke.texi: Document -mabi= option for x86.
3201
3202 2009-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3203
3204         * builtins.c (real_dconstp): Delete.
3205         (fold_builtin_logarithm): Remove inaccurate log(e) special case.
3206
3207 2009-03-27  Dodji Seketeli  <dodji@redhat.com>
3208             Jakub Jelinek  <jakub@redhat.com>
3209
3210         PR debug/37959
3211         * dwarf2out.c (dwarf_attr_name): Handle DW_AT_explicit attribute.
3212         (gen_subprogram_die): When a function is explicit, generate the
3213         DW_AT_explicit attribute.
3214         * langhooks.h (struct lang_hooks_for_decls): Add
3215         function_decl_explicit_p langhook.
3216         * langhooks-def.h (LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P): Define.
3217         (LANG_HOOKS_DECLS): Add LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P.
3218
3219 2009-03-27  Jakub Jelinek  <jakub@redhat.com>
3220
3221         * builtins.c (fold_builtin_memory_op): Optimize memmove
3222         into memcpy if we can prove source and destination don't overlap.
3223
3224         * tree-inline.c: Include gt-tree-inline.h.
3225         (clone_fn_id_num): New variable.
3226         (clone_function_name): New function.
3227         (tree_function_versioning): Use it.
3228         * Makefile.in (GTFILES): Add tree-inline.c.
3229
3230 2009-03-27  Mark Mitchell  <mark@codesourcery.com>
3231
3232         * BASE-VER: Change to 4.5.0.
3233
3234 2009-03-27  Xinliang David Li  <davidxl@google.com>
3235
3236         PR tree-optimization/39557
3237         * tree-ssa.c (warn_uninitialized_vars): free postdom info.
3238
3239 2009-03-27  Xinliang David Li  <davidxl@google.com>
3240
3241         PR tree-optimization/39548
3242         * tree-ssa-copy.c (copy_prop_visit_phi_node): Add copy 
3243         candidate check.
3244
3245 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3246
3247         * c-common.c (pointer_int_sum): Use %wd on return from
3248         tree_low_cst.
3249
3250 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3251
3252         * c-common.c (pointer_int_sum): Use HOST_WIDE_INT_PRINT_DEC
3253         on return from tree_low_cst.
3254
3255 2009-03-27  Andrew Pinski  <andrew_pinski@playstation.sony.com>
3256
3257         PR c++/36799
3258         * ginclude/stdarg.h (va_copy): Define also for
3259         __GXX_EXPERIMENTAL_CXX0X__.
3260
3261 2009-03-27  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3262
3263         PR c++/35652
3264         * builtins.h (c_strlen): Do not warn here.
3265         * c-typeck.c (build_binary_op): Adjust calls to pointer_int_sum.
3266         * c-common.c (pointer_int_sum): Take an explicit location.
3267         Warn about offsets out of bounds.
3268         * c-common.h (pointer_int_sum): Adjust declaration.
3269
3270 2009-03-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3271
3272         * doc/invoke.texi (i386 and x86-64 Windows Options): Fix texinfo
3273         markup glitch.
3274
3275 2009-03-26  Jakub Jelinek  <jakub@redhat.com>
3276
3277         PR c++/39554
3278         * opts.c (warn_if_disallowed_function_p): Don't assume
3279         get_callee_fndecl must return non-NULL.
3280
3281 2009-03-26  Vladimir Makarov  <vmakarov@redhat.com>
3282
3283         PR rtl-optimization/39522
3284         * reload1.c (reload_as_needed): Invalidate reg_last_reload_reg too
3285         when reg_reloaded_valid is set.
3286
3287 2009-03-26  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3288
3289         * config/spu/divv2df3.c: New file.
3290         * config/spu/t-spu-elf (LIB2FUNCS_STATIC_EXTRA): Add it.
3291         (DPBIT_FUNCS): Filter out _div_df.
3292
3293 2009-03-26  Bernd Schmidt  <bernd.schmidt@analog.com>
3294
3295         * config/bfin/bfin.c (bfin_optimize_loop): If the LSETUP goes before
3296         a jump insn, count that jump in the distance to the loop start.
3297
3298 2009-03-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3299
3300         PR target/39523
3301         * config/sh/sh.c (calc_live_regs): Fix condition for global
3302         registers except PIC_OFFSET_TABLE_REGNUM.
3303
3304 2009-03-25  Kai Tietz  <kai.tietz@onevision.com>
3305
3306         PR/39518
3307         * doc/invoke.texi (-mconsole): New.
3308         (-mcygwin): New.
3309         (-mno-cygwin): New.
3310         (-mdll): New.
3311         (-mnop-fun-dllimport): New.
3312         (-mthread): New.
3313         (-mwin32): New.
3314         (-mwindows): New.
3315         (sub section "i386 and x86-64 Windows Options"): New.
3316
3317 2009-03-25  Ralf Corsépius <ralf.corsepius@rtems.org>
3318
3319         * config/arm/rtems-elf.h: Remove LINK_GCC_C_SEQUENCE_SPEC.
3320         * config/rs6000/t-rtems: Remove MULTILIB_EXTRA_OPTS.
3321
3322 2009-03-25  Richard Guenther  <rguenther@suse.de>
3323
3324         PR middle-end/39497
3325         * Makefile.in (dfp.o-warn): Use -fno-strict-aliasing instead
3326         of -Wno-error.
3327
3328 2009-03-25  Andrey Belevantsev  <abel@ispras.ru>
3329
3330         * config/ia64/ia64.c (ia64_set_sched_flags): Zero spec_info->mask when
3331         neither of haifa/selective schedulers are working.
3332
3333 2009-03-25  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3334
3335         * doc/invoke.texi (Debugging Options): Fix description of
3336         -fno-merge-debug-strings.
3337
3338 2009-03-24  Hans-Peter Nilsson  <hp@axis.com>
3339
3340         * config/cris/libgcc.ver: New version-script.
3341         * config/cris/t-linux (SHLIB_MAPFILES): Use it.
3342
3343         * configure.ac <GAS features, nop mnemonic>: Add pattern
3344         crisv32-*-* for "nop".
3345         <GAS features, Thread-local storage>: Add item for CRIS and CRIS v32.
3346         * configure: Regenerate.
3347
3348 2009-03-24  Ira Rosen  <irar@il.ibm.com>
3349
3350         PR tree-optimization/39529
3351         * tree-vect-transform.c (vect_create_data_ref_ptr): Call
3352         mark_sym_for_renaming for the tag copied to the new vector
3353         pointer.
3354
3355 2009-03-24  Arthur Loiret  <aloiret@debian.org>
3356
3357         * config.host (alpha*-*-linux*): Use driver-alpha.o and alpha/x-alpha.
3358         * config/alpha/linux.h (host_detect_local_cpu): Declare, add to
3359         EXTRA_SPEC_FUNCTIONS.
3360         (MCPU_MTUNE_NATIVE_SPECS, DRIVER_SELF_SPECS): New macros.
3361         * config/alpha/driver-alpha.c, config/alpha/x-alpha: New.
3362         * doc/invoke.texi (DEC Alpha Options): Document 'native' value for
3363         -march and -mtune options.
3364
3365 2009-03-24  Ralf Corsépius <ralf.corsepius@rtems.org>
3366
3367         * config/m68k/t-rtems: Add m5329 multilib.
3368
3369 2009-03-24  Dodji Seketeli  <dodji@redhat.com>
3370             Jakub Jelinek  <jakub@redhat.com>
3371
3372         PR debug/39524
3373         * dwarf2out.c (gen_variable_die): Avoid adding duplicate declaration
3374         nodes.
3375
3376 2009-03-23  Jakub Jelinek  <jakub@redhat.com>
3377
3378         PR c/39495
3379         * c-parser.c (c_parser_omp_for_loop): Call c_parser_binary_expression
3380         instead of c_parser_expression_conv, if original_code isn't one of the
3381         4 allowed comparison codes, fail.
3382
3383 2009-03-23  Richard Guenther  <rguenther@suse.de>
3384
3385         * cgraph.h (struct cgraph_node): Reorder fields for 64-bit hosts.
3386         * tree.h (struct tree_type): Likewise.
3387         * reload.h (struct insn_chain): Likewise.
3388         * dwarf2out.c (struct dw_loc_descr_struct): Likewise.
3389         * function.h (struct function): Likewise.
3390         * tree-ssa-structalias.c (struct equiv_class_label): Likewise.
3391
3392 2009-03-23  Jakub Jelinek  <jakub@redhat.com>
3393
3394         PR tree-optimization/39516
3395         * lambda-code.c (perfect_nestify): Fix type of the uboundvar variable.
3396
3397 2009-03-23 Bingfeng Mei  <bmei@broadcom.com>
3398
3399         * config.gcc (need_64bit_hwint): Make clear that need_64bit_hwint 
3400         should be set true if BITS_PER_WORD of target is bigger than 32
3401
3402 2009-03-22  Hans-Peter Nilsson  <hp@axis.com>
3403
3404         * config/cris/linux.h (CRIS_LINK_SUBTARGET_SPEC):
3405         Translate -B-options to -rpath-link.  Correct existing
3406         rpath-link and conditionalize on !nostdlib.
3407
3408 2009-03-22  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3409
3410         * doc/extend.texi (Function Attributes, Variable Attributes):
3411         Fix typos.
3412         * doc/invoke.texi (Debugging Options, Optimize Options)
3413         (i386 and x86-64 Options, MCore Options): Likewise.
3414
3415 2009-03-20  Jakub Jelinek  <jakub@redhat.com>
3416
3417         PR debug/37890
3418         * dwarf2out.c (gen_namespace_die): Add context_die argument and use
3419         it for block local namespace aliases.
3420         (gen_decl_die): Pass context_die to gen_namespace_die.
3421
3422 2009-03-19  Jakub Jelinek  <jakub@redhat.com>
3423
3424         PR c/39495
3425         * c-omp.c (c_finish_omp_for): Allow NE_EXPR with TREE_TYPE (decl)'s
3426         minimum or maximum value.
3427
3428 2009-03-19  Alexandre Oliva  <aoliva@redhat.com>
3429
3430         * reginfo.c (globalize_reg): Recompute derived reg sets.
3431
3432 2009-03-19  Ozkan Sezer <sezeroz@gmail.com>
3433
3434         PR target/39063
3435         * libgcc2.c (mprotect): Do not use signed arguments for
3436         VirtualProtect, use DWORD arguments.  Also fix the 'may
3437         be used uninitialized' warning for the np variable.
3438
3439 2009-03-19  Jakub Jelinek  <jakub@redhat.com>
3440
3441         PR target/39496
3442         * config/i386/i386.c (ix86_function_regparm): Don't optimize local
3443         functions using regparm calling conventions when not optimizing.
3444         (ix86_function_sseregparm): Similarly for sseregparm calling
3445         conventions.
3446
3447 2009-03-19  Li Feng  <nemokingdom@gmail.com>
3448
3449         PR middle-end/39500
3450         * tree-data-ref.c (analyze_subscript_affine_affine): There is no
3451         dependence if the first conflict is after niter iterations.
3452
3453 2009-03-19  Hans-Peter Nilsson  <hp@axis.com>
3454
3455         PR middle-end/38609
3456         * config/cris/cris.h (FRAME_POINTER_REQUIRED): Force for all
3457         functions with dynamic stack-pointer adjustments.
3458
3459 2009-03-19  Ben Elliston  <bje@au.ibm.com>
3460
3461         * doc/invoke.texi (RS/6000 and PowerPC Options): Fix -msdata-data
3462         option; change to -msdata=data.
3463
3464 2009-03-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3465
3466         * c.opt: Unify help texts for -Wdeprecated, -Wsystem-headers,
3467         and -fopenmp.
3468
3469 2009-03-18  Eric Botcazou  <ebotcazou@adacore.com>
3470
3471         PR target/35180
3472         * config/sparc/sparc.md (do_builtin_setjmp_setup): Prettify asm output.
3473
3474 2009-03-18  Sandra Loosemore  <sandra@codesourcery.com>
3475
3476         * doc/invoke.texi (Code Gen Options): Expand discussion of
3477         -fno-common.
3478
3479 2009-03-18  Jakub Jelinek  <jakub@redhat.com>
3480
3481         * dse.c (struct group_info): Reorder fields for 64-bit hosts.
3482         * matrix-reorg.c (struct matrix_info): Likewise.
3483         * tree-ssa-loop-ivopts.c (struct ivopts_data): Likewise.
3484         * rtl.h (struct mem_attrs): Likewise.
3485         * df.h (struct df): Likewise.
3486         * tree-data-ref.h (struct data_dependence_relation): Likewise.
3487         * ira-int.h (struct ira_allocno): Likewise.
3488         * df-scan.c (struct df_collection_rec): Likewise.
3489         * ira.c (struct equivalence): Likewise.
3490         * function.c (struct temp_slot): Likewise.
3491         * cfgloop.h (struct loop): Likewise.
3492
3493         PR debug/39485
3494         * function.c (use_register_for_decl): When not optimizing, disregard
3495         register keyword for variables with types containing methods.
3496
3497 2009-03-18  Sebastian Pop  <sebastian.pop@amd.com>
3498
3499         PR middle-end/39447
3500         * graphite.c (exclude_component_ref): Renamed contains_component_ref_p.
3501         (is_simple_operand): Call contains_component_ref_p before calling data
3502         reference analysis that would fail on COMPONENT_REFs.
3503
3504         * tree-vrp.c (search_for_addr_array): Fix formatting.
3505
3506 2009-03-18  Richard Guenther  <rguenther@suse.de>
3507
3508         * tree-vect-transform.c (vect_loop_versioning): Fold the
3509         generated comparisons.
3510         * tree-vectorizer.c (set_prologue_iterations): Likewise.
3511         (slpeel_tree_peel_loop_to_edge): Likewise.
3512
3513 2009-03-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3514
3515         PR middle-end/37805
3516         * opts.c (print_specific_help): In addition to `undocumented',
3517         accept `separate' and `joined' flags if passed alone.  Describe
3518         output by the first matched one of those.
3519         (common_handle_option): Skip over empty strings.
3520         * gcc.c (display_help): Fix help string for `--help='.
3521         * doc/invoke.texi (Option Summary, Overall Options): With
3522         `--help=', classes and qualifiers can both be repeated, but
3523         only the latter can be negated.  One should not pass only
3524         negated qualifiers.  Fix markup and examples.
3525
3526         Revert
3527         2008-10-14  Jakub Jelinek  <jakub@redhat.com>
3528         PR middle-end/37805
3529         * opts.c (common_handle_option): Don't ICE on -fhelp=joined
3530         and -fhelp=separate.
3531
3532 2009-03-17  Jing Yu  <jingyu@google.com>
3533
3534         PR middle-end/39378
3535         * function.h (struct rtl_data): Move is_thunk from here...
3536         (struct function): ...to here.
3537         * cp/method.c (use_thunk): Change is_thunk from crtl to cfun.
3538         * varasm.c (assemble_start_function): Change is_thunk from crtl to
3539         cfun.
3540         * config/alpha/alpha.c (alpha_sa_mask): Change is_thunk from crtl to
3541         cfun.
3542         (alpha_does_function_need_gp, alpha_start_function): Likewise.
3543         (alpha_output_function_end_prologue): Likewise.
3544         (alpha_end_function, alpha_output_mi_thunk_osf): Likewise.
3545         * config/rs6000/rs6000.c (rs6000_ra_ever_killed): Likewise.
3546         (rs6000_output_function_epilogue): Likewise.
3547         * config/arm/arm.h (ARM_DECLARE_FUNCTION_NAME): Likewise.
3548
3549 2009-03-17  Uros Bizjak  <ubizjak@gmail.com>
3550
3551         PR target/39482
3552         * config/i386/i386.md (*truncdfsf_mixed): Avoid combining registers
3553         from different units in a single alternative.
3554         (*truncdfsf_i387): Ditto.
3555         (*truncxfsf2_mixed): Ditto.
3556         (*truncxfdf2_mixed): Ditto.
3557
3558 2009-03-17  Jakub Jelinek  <jakub@redhat.com>
3559
3560         * dwarf2out.c (dwarf2out_imported_module_or_decl_1): Allow
3561         non-NAMESPACE_DECL IMPORTED_DECL_ASSOCIATED_DECL.
3562
3563         PR debug/39474
3564         * tree-ssa-live.c (remove_unused_locals): Don't remove local
3565         unused non-artificial variables when not optimizing.
3566
3567         PR debug/39471
3568         * dwarf2out.c (dwarf2out_imported_module_or_decl_1): Emit
3569         DW_TAG_imported_module even if decl is IMPORTED_DECL with
3570         NAMESPACE_DECL in its DECL_INITIAL.
3571
3572         PR middle-end/39443
3573         * optabs.c (set_user_assembler_libfunc): New function.
3574         * expr.h (set_user_assembler_libfunc): New prototype.
3575         * c-common.c: Include libfuncs.h.
3576         (set_builtin_user_assembler_name): Call set_user_assembler_libfunc
3577         for memcmp, memset, memcpy, memmove and abort.
3578         * Makefile.in (c-common.o): Depend on libfuncs.h.
3579
3580         PR debug/39412
3581         * dwarf2out.c (gen_inlined_enumeration_type_die,
3582         gen_inlined_structure_type_die, gen_inlined_union_type_die,
3583         gen_tagged_type_instantiation_die): Removed.
3584         (gen_decl_die): For TYPE_DECL_IS_STUB with non-NULL decl_origin
3585         do nothing.
3586
3587 2009-03-17  Janis Johnson  <janis187@us.ibm.com>
3588
3589         PR testsuite/38526
3590         * Makefile.in (site.exp): Rename TEST_GCC_EXEC_PREFIX and comment
3591         its use.
3592         (check-%): Don't set GCC_EXEC_PREFIX when invoking runtest.
3593         (check-parallel-%): Ditto.
3594         (check-consistency): Ditto.
3595
3596 2009-03-17  Kai Tietz  <kai.tietz@onevision.com>
3597
3598         * ipa-struct-reorg.c (create_general_new_stmt): Initialize
3599         local variable rhs by NULL_TREE.
3600
3601 2009-03-17  H.J. Lu  <hongjiu.lu@intel.com>
3602
3603         PR target/39477
3604         * doc/extend.texi: Correct register behavior for regparm on Intel 386.
3605
3606 2009-03-17  H.J. Lu  <hongjiu.lu@intel.com>
3607
3608         PR target/39476
3609         * config/i386/i386.c (ix86_function_regparm): Rewrite for 64bit.
3610
3611 2009-03-17  H.J. Lu  <hongjiu.lu@intel.com>
3612
3613         PR target/39473
3614         * config/i386/i386.c (ix86_expand_call): Check extra clobbers
3615         for ms->sysv ABI calls only in 64bit mode.
3616
3617         * config/i386/i386.md (untyped_call): Support 32bit.
3618
3619 2009-03-16  H.J. Lu  <hongjiu.lu@intel.com>
3620
3621         * doc/extend.texi: Replace x86_65 with x86_64.
3622
3623 2009-03-16  Jakub Jelinek  <jakub@redhat.com>
3624
3625         PR tree-optimization/39455
3626         * tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Fix types
3627         mismatches for POINTER_TYPE_P (type).
3628         (number_of_iterations_le): Likewise.
3629
3630 2009-03-16  Hariharan Sandanagobalane <hariharan@picochip.com>
3631
3632         * config/picochip/picochip.c: Removed profiling support.
3633         * config/picochip/picochip.md: Removed profiling instruction.
3634         * config/picochip/picochip.h: Removed profiling builtin.
3635
3636 2009-03-16  Joseph Myers  <joseph@codesourcery.com>
3637
3638         * doc/install.texi (--with-host-libstdcxx): Document.
3639
3640 2009-03-14  Anatoly Sokolov  <aesok@post.ru>
3641
3642         PR target/34299
3643         * config/avr/avr.c (avr_handle_fndecl_attribute): Move code for
3644         generate a warning if the function name does not begin with
3645         "__vector" and the function has either the 'signal' or 'interrupt'
3646         attribute, from here to ...
3647         (avr_declare_function_name): ...here. New function.
3648         * config/avr/avr.h (ASM_DECLARE_FUNCTION_NAME): Redefine.
3649         * config/avr/avr-protos.h (avr_declare_function_name): Declare.
3650
3651 2009-03-14  Jakub Jelinek  <jakub@redhat.com>
3652
3653         PR bootstrap/39454
3654         * cse.c (fold_rtx): Don't modify original const_arg1 when
3655         canonicalizing SHIFT_COUNT_TRUNCATED shift count, do it on a
3656         separate variable instead.
3657         * rtlanal.c (nonzero_bits1) <case ASHIFTRT>: Don't assume anything
3658         from out of range shift counts.
3659         (num_sign_bit_copies1) <case ASHIFTRT, case ASHIFT>: Similarly.
3660
3661 2008-03-13  Catherine Moore  <clm@codesourcery.com>
3662
3663         * gcc/config/i386/x-mingw32 (host-mingw32.o): Replace
3664         diagnostic.h with $(DIAGNOSTIC_H).
3665
3666 2008-03-12  Jakub Jelinek  <jakub@redhat.com>
3667
3668         PR target/39431
3669         * config/i386/predicates.md (cmpxchg8b_pic_memory_operand): New
3670         predicate.
3671         * config/i386/sync.md (sync_compare_and_swap<mode>,
3672         sync_compare_and_swap_cc<mode>): For DImode with -m32 -fpic check
3673         if operands[1] is cmpxchg8b_pic_memory_operand, if not force address
3674         into a register.
3675         (sync_double_compare_and_swapdi_pic,
3676         sync_double_compare_and_swap_ccdi_pic): Require operand 1 to be
3677         cmpxchg8b_pic_memory_operand instead of just memory_operand.
3678
3679 2009-03-12  H.J. Lu  <hongjiu.lu@intel.com>
3680
3681         PR target/39445
3682         * config/i386/i386.c (ix86_expand_push): Don't set memory alignment.
3683
3684 2009-03-12  H.J. Lu  <hongjiu.lu@intel.com>
3685
3686         PR target/39327
3687         * config/i386/sse.md (avx_addsubv8sf3): Correct item bits.
3688         (avx_addsubv4df3): Likewise.
3689         (*avx_addsubv4sf3): Likewise.
3690         (sse3_addsubv4sf3): Likewise.
3691
3692 2009-03-12  H.J. Lu  <hongjiu.lu@intel.com>
3693
3694         PR target/38824
3695         * config/i386/i386.md: Compare REGNO on the new peephole2 patterns.
3696
3697 2009-03-12  Vladimir Makarov  <vmakarov@redhat.com>
3698
3699         PR debug/39432
3700         * ira-int.h (struct allocno): Fix comment for calls_crossed_num.
3701         * ira-conflicts.c (ira_build_conflicts): Prohibit call used
3702         registers for allocnos created from user-defined variables.
3703
3704 2009-03-11  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3705
3706         PR target/39181
3707         * config/spu/spu.c (spu_expand_mov): Handle invalid subregs
3708         of non-integer mode as well.
3709
3710 2009-03-11  Adam Nemet  <anemet@caviumnetworks.com>
3711
3712         * gimplify.c (gimplify_call_expr): Don't set CALL_CANNOT_INLINE_P
3713         for functions for which the parameter types are unknown.
3714
3715 2009-03-11  Jakub Jelinek  <jakub@redhat.com>
3716
3717         PR target/39137
3718         * cfgexpand.c (get_decl_align_unit): Use LOCAL_DECL_ALIGNMENT macro.
3719         * defaults.h (LOCAL_DECL_ALIGNMENT): Define if not yet defined.
3720         * config/i386/i386.h (LOCAL_DECL_ALIGNMENT): Define.
3721         * config/i386/i386.c (ix86_local_alignment): For
3722         -m32 -mpreferred-stack-boundary=2 use 32-bit alignment for
3723         long long variables on the stack to avoid dynamic realignment.
3724         Allow the first argument to be a decl rather than type.
3725         * doc/tm.texi (LOCAL_DECL_ALIGNMENT): Document.
3726
3727 2009-03-11  Nick Clifton  <nickc@redhat.com>
3728
3729         PR target/5362
3730         * config/mcore/mcore.opt: Remove deprecated m4align and m8align
3731         options.
3732         Add description to mno-lsim option.
3733         * config/mcore/mcore.h: Remove comment about deprecated m4align
3734         option.
3735         (TARGET_DEFAULT): Remove deprecated MASK_M8ALIGN.
3736         * doc/invoke.texi: Add description of mno-lsim and
3737         mstack-increment options.
3738
3739         * config/fr30/fr30.opt: Document the -mno-lsim option.
3740         * doc/invoke.texi: Add descriptions of the FR30's -msmall-model
3741         and -mno-lsim options.
3742
3743 2009-03-11  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3744
3745         * fold-const.c (fold_comparison): Only call fold_inf_compare
3746         if the mode supports infinities.
3747
3748 2009-03-11  Jason Merrill  <jason@redhat.com>
3749
3750         PR debug/39086
3751         * tree-nrv.c (tree_nrv): Don't do this optimization if the front
3752         end already did.  Notice GIMPLE_CALL modifications of the result.
3753         Don't copy debug information from an ignored decl or a decl from
3754         another function.
3755
3756 2009-03-10  Richard Guenther  <rguenther@suse.de>
3757             Nathan Froyd  <froydnj@codesourcery.com>
3758
3759         PR middle-end/37850
3760         * libgcc2.c (__mulMODE3): Use explicit assignments to form the result.
3761         (__divMODE3): Likewise.
3762
3763 2009-03-09  Jakub Jelinek  <jakub@redhat.com>
3764
3765         PR tree-optimization/39394
3766         * gimplify.c (gimplify_type_sizes): Gimplify DECL_SIZE and
3767         DECL_SIZE_UNIT of variable length FIELD_DECLs.
3768
3769 2009-03-09  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
3770
3771         * recog.c (verfiy_changes): Disallow renaming of hard regs in
3772         inline asms for register asm ("") declarations.
3773
3774 2009-03-09  Eric Botcazou  <ebotcazou@adacore.com>
3775
3776         * fold-const.c (fold_unary): Fix comment.
3777
3778 2009-03-07  Jan Hubicka  <jh@suse.cz>
3779
3780         PR target/39361
3781         * tree-inline.c (setup_one_parameter): Do replacement of const
3782         argument by constant in SSA form.
3783
3784 2009-03-07  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3785
3786         PR middle-end/38028
3787         * function.c (assign_parm_setup_stack): Use STACK_SLOT_ALIGNMENT to
3788         determine alignment passed to assign_stack_local.
3789         (assign_parms_unsplit_complex): Likewise.
3790         * except.c (sjlj_build_landing_pads): Likewise.
3791
3792 2009-03-06  Jakub Jelinek  <jakub@redhat.com>
3793
3794         PR middle-end/39360
3795         * tree-flow.h (add_referenced_var): Return bool instead of void.
3796         * tree-dfa.c (add_referenced_var): Return result of
3797         referenced_var_check_and_insert call.
3798         * tree-inline.c (expand_call_inline): Call add_referenced_var instead
3799         of referenced_var_check_and_insert.
3800
3801         PR debug/39372
3802         * dwarf2out.c (add_abstract_origin_attribute): Return origin_die.
3803         (gen_variable_die): Emit DW_AT_location on abstract static variable's
3804         DIE, don't emit it if abstract origin already has it.
3805         * tree-cfg.c (remove_useless_stmts_bind): GIMPLE_BINDs with any
3806         BLOCK_NONLOCALIZED_VARS in its gimple_bind_block aren't useless.
3807
3808 2009-03-06  Jan-Benedict Glaw  <jbglaw@lug-owl.de>
3809
3810         * genpreds.c (needs_variable): Fix parentheses at variable name
3811         detection.
3812         (write_tm_constrs_h): Indent generated code.
3813
3814 2009-03-06  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
3815
3816         * doc/extend.texi (Function Attributes): Add documentation
3817         for isr attributes.
3818
3819 2009-03-06  Jakub Jelinek  <jakub@redhat.com>
3820
3821         PR debug/39387
3822         * dwarf2out.c (dwarf2out_imported_module_or_decl_1): For IMPORTED_DECL
3823         take locus from its DECL_SOURCE_LOCATION instead of input_location.
3824
3825 2009-03-05  Bernd Schmidt  <bernd.schmidt@analog.com>
3826
3827         * config/bfin/bfin.c (bfin_discover_loop): When retrying fails, mark
3828         the loop as bad.
3829
3830 2009-03-05  Jakub Jelinek  <jakub@redhat.com>
3831
3832         PR debug/39379
3833         * tree-cfg.c (remove_useless_stmts_bind): Don't remove GIMPLE_BINDs
3834         with blocks containing IMPORTED_DECLs in BLOCK_VARS.
3835
3836 2009-03-05  Uros Bizjak  <ubizjak@gmail.com>
3837
3838         * config/i386/i386.md (R8_REG, R9_REG): New constants.
3839         * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Use named
3840         constants instead of magic numbers.
3841         (HARD_REGNO_CALLER_SAVE_MODE): Ditto.
3842         (QI_REG_P): Ditto.
3843         * config/i386/i386.c (x86_64_int_parameter_registers): Ditto.
3844         (x86_64_ms_abi_int_parameter_registers): Ditto.
3845         (x86_64_int_return_registers): Ditto.
3846         (ix86_maybe_switch_abi): Ditto.
3847         (ix86_expand_call): Ditto for clobbered_registers array.
3848         (ix86_hard_regno_mode_ok): Ditto.
3849         (x86_extended_QIreg_mentioned_p): Ditto.
3850
3851 2009-03-05  J"orn Rennecke  <joern.rennecke@arc.com>
3852
3853         PR tree-optimization/39349
3854         * cse.c (cse_insn): Fix loop to stop at VOIDmode.
3855
3856         * combine.c (gen_lowpart_for_combine): Use omode when generating
3857         clobber.
3858
3859 2009-03-04  J"orn Rennecke  <joern.rennecke@arc.com>
3860
3861         PR rtl-optimization/39235
3862         * loop-iv.c (get_simple_loop_desc): Use XCNEW.
3863
3864 2009-03-04  Zdenek Dvorak  <ook@ucw.cz>
3865
3866         * graphite.c (nb_reductions_in_loop): Update simple_iv arguments.
3867
3868 2009-03-04  Richard Guenther  <rguenther@suse.de>
3869
3870         PR tree-optimization/39362
3871         * tree-ssa-sccvn.c (visit_use): Stores and copies from SSA_NAMEs
3872         that occur in abnormal PHIs should be varying.
3873
3874 2009-03-04  Zdenek Dvorak  <ook@ucw.cz>
3875
3876         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop):
3877         Extend comments.
3878         (simple_iv):  Take loop as an argument instead of statement.
3879         * tree-scalar-evolution.h (simple_iv): Declaration changed.
3880         * tree-ssa-loop-niter.c (number_of_iterations_exit): Update calls
3881         to simple_iv.
3882         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev):
3883         Ditto.
3884         * tree-parloops.c (loop_parallel_p, canonicalize_loop_ivs): Ditto.
3885         * matrix-reorg.c (analyze_transpose): Ditto.
3886         * tree-data-ref.c (dr_analyze_innermost): Ditto.
3887         * tree-vect-analyze.c (vect_analyze_data_refs): Ditto.
3888         * tree-predcom.c (ref_at_iteration): Ditto.
3889         * tree-ssa-loop-prefetch.c (idx_analyze_ref): Ditto.
3890
3891 2009-03-04  Richard Guenther  <rguenther@suse.de>
3892
3893         PR tree-optimization/39358
3894         * tree-ssa-structalias.c (do_sd_constraint): Fix check for
3895         escaped_id and callused_id.
3896         (solve_graph): Likewise.
3897
3898 2009-03-04  Richard Guenther  <rguenther@suse.de>
3899
3900         PR tree-optimization/39339
3901         * tree-sra.c (try_instantiate_multiple_fields): Make it
3902         no longer ICE on the above.
3903
3904 2009-03-03  Joseph Myers  <joseph@codesourcery.com>
3905
3906         * emit-rtl.c (adjust_address_1): Reduce offset to a signed value
3907         that fits within Pmode.
3908
3909 2009-03-03  Steve Ellcey  <sje@cup.hp.com>
3910
3911         PR middle-end/10109
3912         * tm.texi (LIBCALL_VALUE): Update description.
3913
3914 2009-03-03  Steve Ellcey  <sje@cup.hp.com>
3915
3916         PR middle-end/34443
3917         * doc/extend.texi (section): Update description.
3918
3919 2009-03-03  H.J. Lu  <hongjiu.lu@intel.com>
3920
3921         PR middle-end/39345
3922         * tree-inline.c (remapped_type): New.
3923         (can_be_nonlocal): Call remapped_type instead of remap_type.
3924
3925 2009-03-03  Jakub Jelinek  <jakub@redhat.com>
3926
3927         PR fortran/39354
3928         * gimplify.c (goa_stabilize_expr): Handle tcc_comparison,
3929         TRUTH_ANDIF_EXPR and TRUTH_ORIF_EXPR.
3930
3931 2009-03-03  Richard Guenther  <rguenther@suse.de>
3932
3933         PR middle-end/39272
3934         * tree.c (tree_nonartificial_location): New function.
3935         * tree.h (tree_nonartificial_location): Declare.
3936         * builtins.c (expand_builtin_memory_chk): Provide location
3937         of the call location for artificial function pieces.
3938         (maybe_emit_chk_warning): Likewise.
3939         (maybe_emit_sprintf_chk_warning): Likewise.
3940         (maybe_emit_free_warning): Likewise.
3941         * expr.c (expand_expr_real_1): Likewise.
3942
3943 2009-03-03  Jakub Jelinek  <jakub@redhat.com>
3944
3945         PR tree-optimization/39343
3946         * tree-ssa-ccp.c (maybe_fold_offset_to_address): Don't check if
3947         COMPONENT_REF t has ARRAY_TYPE.
3948
3949 2009-03-02  Sebastian Pop  <sebastian.pop@amd.com>
3950
3951         PR middle-end/39335
3952         * tree-parloops.c (canonicalize_loop_ivs): Call fold_convert
3953         when the type precision of the induction variable should be
3954         larger than the type precision of nit.
3955         (gen_parallel_loop): Update use of canonicalize_loop_ivs.
3956         * graphite.c (graphite_loop_normal_form): Same.
3957         * tree-flow.h (canonicalize_loop_ivs): Update declaration.
3958
3959 2009-03-02  Uros Bizjak  <ubizjak@gmail.com>
3960
3961         * config/i386/i386.md (ST?_REG, MM?_REG): New constants.
3962         (*call_1_rex64_ms_sysv): Use named constants instead of magic
3963         numbers to describe clobbered registers.
3964         (*call_value_0_rex64_ms_sysv): Ditto.
3965         * config/i386/mmx.md (mmx_emms): Ditto.
3966         (mmx_femms): Ditto.
3967
3968 2009-03-02  Richard Sandiford  <rdsandiford@googlemail.com>
3969
3970         * config/mips/mips.c (mips_mdebug_abi_name): Fix the handling
3971         of ABI_64.
3972
3973 2009-03-02  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3974
3975         * config/spu/spu.c (TARGET_SECTION_TYPE_FLAGS): Define.
3976         (spu_section_type_flags): New function.
3977
3978 2009-03-02  Uros Bizjak  <ubizjak@gmail.com>
3979
3980         * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Do not copy
3981         reg_class_contents of FLOAT_REGS into a temporary.
3982
3983 2009-03-02  Richard Guenther  <rguenther@suse.de>
3984             Ira Rosen  <irar@il.ibm.com>
3985
3986         PR tree-optimization/39318
3987         * tree-vect-transform.c (vectorizable_call): Transfer the EH region
3988         information to the vectorized statement.
3989
3990 2009-03-01  Uros Bizjak  <ubizjak@gmail.com>
3991
3992         * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Do not shadow "i"
3993         variable.  Use defined names instead of magic constants for REX SSE
3994         registers.
3995
3996 2009-03-01  Richard Guenther  <rguenther@suse.de>
3997
3998         PR tree-optimization/39331
3999         * omp-low.c (lower_send_shared_vars): Do not receive new
4000         values for the reference of DECL_BY_REFERENCE parms or results.
4001
4002 2009-03-01  Jan Hubicka  <jh@suse.cz>
4003
4004         PR debug/39267
4005         * tree.h (BLOCK_NONLOCALIZED_VARS, BLOCK_NUM_NONLOCALIZED_VARS,
4006         BLOCK_NONLOCALIZED_VAR): New macros.
4007         (tree_block): Add nonlocalized_vars.
4008         * dwarf2out.c (gen_formal_parameter_die, gen_variable_die,
4009         gen_decl_die): Add origin argument.  Allow generation of die with
4010         origin at hand only.
4011         (gen_member_die, gen_type_die_with_usage, force_decl_die,
4012         declare_in_namespace, gen_namescpace_die, dwarf2out_decl): Update use
4013         of gen_*.
4014         (gen_block_die): Fix checking for unused blocks.
4015         (process_scope_var): Break out from .... ; work with origins only.
4016         (decls_for_scope) ... here; process nonlocalized list.
4017         (dwarf2out_ignore_block): Look for nonlocalized vars.
4018         * tree-ssa-live.c (remove_unused_scope_block_p): Look for nonlocalized
4019         vars.
4020         (dump_scope_block): Dump them.
4021         * tree-inline.c (remap_decls): Handle nonlocalized vars.
4022         (remap_block): Likewise.
4023         (can_be_nonlocal): New predicate.
4024         (copy_bind_expr, copy_gimple_bind): Update use of remap_block.
4025
4026 2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
4027
4028         * configure: Regenerate.
4029
4030 2009-03-01  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
4031
4032         * optc-gen.awk: No need to duplicate option flags twice.
4033         Reuse help texts for duplicate options which do not have any.
4034
4035         * gcc.c (display_help): Document --version.
4036
4037         * gcc.c (main): If print_help_list and verbose_flag, ensure
4038         driver output comes before subprocess output.
4039
4040         * optc-gen.awk: Assign all remaining fields to help string,
4041         space-separated, for multi-line help in *.opt.
4042
4043         * doc/invoke.texi (Warning Options): -Wsync-nand is C/C++ only.
4044         -Wno-pedantic-ms-format is for MinGW targets only.
4045
4046         * doc/options.texi (Option file format): Fix bad indentation,
4047         restoring dropped sentence.
4048
4049 2009-02-28  Jan Hubicka  <jh@suse.cz>
4050
4051         * tree-inline.c (tree_function_versioning): Output debug info.
4052
4053 2009-02-28  Jan Hubicka  <jh@suse.cz>
4054
4055         PR debug/39267
4056         * tree-inline.c (setup_one_parameter): Do not copy propagate
4057         arguments when not optimizing.
4058
4059 2009-02-28  H.J. Lu  <hongjiu.lu@intel.com>
4060
4061         PR target/39327
4062         * config/i386/sse.md (avx_addsubv8sf3): Correct item bits.
4063         (avx_addsubv4df3): Likewise.
4064         (*avx_addsubv4sf3): Likewise.
4065         (sse3_addsubv4sf3): Likewise.
4066         (*avx_addsubv2df3): Likewise.
4067         (sse3_addsubv2df3): Likewise.
4068         (avx_unpckhps256): Correct item selectors.
4069         (avx_unpcklps256): Likewise.
4070         (avx_unpckhpd256): Likewise.
4071         (avx_unpcklpd256): Likewise.
4072
4073 2009-02-28  Jan Hubicka  <jh@suse.cz>
4074
4075         * tree-inline.c (expand_call_inline): Avoid duplicate declarations of
4076         static vars.
4077         (copy_arguments_for_versioning): If var is declared don't declare it.
4078         (tree_function_versioning): First setup substitutions and then copy
4079         args.
4080
4081 2009-02-27  Jan Hubicka  <jh@suse.cz>
4082
4083         PR debug/39267
4084         * cgraph.h (varpool_output_debug_info): Remove.
4085         * cgraphunit.c (varpool_output_debug_info): Remove.
4086         * dwarf2out.c (deferred_locations_struct): New struct
4087         (deferred_locations): New type.
4088         (deferred_locations_list): New static var.
4089         (deffer_location): New function.
4090         (gen_variable_die): Use it.
4091         (decls_for_scope): Output info on local static vars.
4092         (dwarf2out_finish): Process deferred locations.
4093         * varpool.c (varpool_output_debug_info): Remove.
4094
4095 2009-02-27  Jan Hubicka  <jh@suse.cz>
4096
4097         PR debug/39267
4098         * tree.h (TREE_PROTECTED): Fix comment.
4099         (BLOCK_HANDLER_BLOCK): Remove.
4100         (struct tree_block): Remove handler_block add body_block.
4101         (inlined_function_outer_scope_p): New.
4102         (is_body_block): Remove.
4103         * dbxout.c (dbxout_block): Remove BLOCK_HANDLER_BLOCK.
4104         * dwarf2out.c (is_inlined_entry_point): Remove.
4105         (add_high_low_attributes): Use inlined_function_outer_scope_p.
4106         (gen_block_die): Use is_inlined_entry_point check.  Remove body block
4107         code.
4108         * langhooks.h (struct lang_hooks): Remove no_bodu_blocks.
4109         * gimplify.c (gimplify_expr): Gimplify body blocks.
4110         * tree-ssa-live.c (remove_unused_scope_block_p): Allow removing wrapper
4111         block with multiple subblocks.
4112         (dump_scope_block): Prettier output; dump more flags and info.
4113         (dump_scope_blocks): New.
4114         (remove_unused_locals): Use dump_scope_blocks.
4115         * tree-flow.h (dump_scope_blocks): Declare.
4116         * tree-cfg.c (execute_build_cfg): Dump scope blocks.
4117         * stmt.c (is_body_block): Remove.
4118         * tree-inline.c (remap_block): Copy BODY_BLOCK info.
4119         * langhooks-def.h (LANG_HOOKS_NO_BODY_BLOCKS): Remove.
4120
4121 2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>
4122
4123         PR middle-end/39308
4124         * graphite.c (graphite_loop_normal_form): Do not call 
4125         number_of_iterations_exit from a gcc_assert.
4126
4127 2009-02-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
4128
4129         * gcc/config/s390/s390.c (s390_swap_cmp): Look for conditional
4130         jumps if COND is NULL.
4131         (find_cond_jump): New function.
4132         (s390_z10_optimize_cmp): Handling for reg-reg compares added.
4133         * gcc/config/s390/s390.md: Remove z10_cobra attribute value.
4134
4135 2009-02-26  Uros Bizjak  <ubizjak@gmail.com>
4136
4137         * config/alpha/alpha.h (alpha_expand_mov): Return false if
4138         force_const_mem returns NULL_RTX.
4139
4140 2009-02-26  Jan Hubicka  <jh@suse.cz>
4141
4142         PR debug/39267
4143         * cgraph.h (varpool_output_debug_info): Remove.
4144         * cgraphunit.c (varpool_output_debug_info): Remove.
4145         * dwarf2out.c (deferred_locations_struct): New struct
4146         (deferred_locations): New type.
4147         (deferred_locations_list): New static var.
4148         (deffer_location): New function.
4149         (gen_variable_die): Use it.
4150         (decls_for_scope): Output info on local static vars.
4151         (dwarf2out_finish): Process deferred locations.
4152         * varpool.c (varpool_output_debug_info): Remove.
4153
4154 2009-02-25  H.J. Lu  <hongjiu.lu@intel.com>
4155
4156         PR rtl-optimization/39241
4157         * jump.c (rtx_renumbered_equal_p): Remove 2 superfluous calls
4158         to subreg_offset_representable_p.
4159
4160 2009-02-25  Paolo Bonzini  <bonzini@gnu.org>
4161
4162         * regmove.c (regmove_optimize): Conform to struct rtl_opt_pass
4163         execute function prototype.  Get f and nregs from max_reg_num
4164         and get_insns.  Remove the first backward pass as it's dead,
4165         guard the forward pass by flag_expensive_optimizations.
4166         (rest_of_handle_regmove): Delete.
4167         (pass_regmove): Replace it with regmove_optimize.
4168
4169 2009-02-25  Martin Jambor  <mjambor@suse.cz>
4170
4171         PR tree-optimization/39259
4172         * tree-inline.c (initialize_cfun): Remove asserts for calls_setjmp and
4173         calls_alloca function flags.
4174         (copy_bb): Set calls_setjmp and alls_alloca function flags if such
4175         calls are detected.
4176
4177 2009-02-25  Paolo Bonzini  <bonzini@gnu.org>
4178
4179         * regmove.c (discover_flags_reg, flags_set_1, mark_flags_life_zones,
4180         flags_set_1_rtx, flags_set_1_set): Delete.
4181         (regmove_optimize): Do not call mark_flags_life_zones.
4182
4183 2009-02-24  Julian Brown  <julian@codesourcery.com>
4184
4185         PR target/35965
4186         * config/arm/arm.c (require_pic_register): Only set
4187         cfun->machine->pic_reg once per function.
4188
4189 2009-02-24  Sandra Loosemore  <sandra@codesourcery.com>
4190
4191         * doc/invoke.texi (Link Options): Document an easier way to pass
4192         options that take arguments to the GNU linker using -Xlinker and -Wl.
4193
4194 2009-02-24  Steve Ellcey  <sje@cup.hp.com>
4195
4196         PR target/33785
4197         * doc/tm.texi (TARGET_C99_FUNCTIONS): Fix description.
4198
4199 2009-02-24  Richard Guenther  <rguenther@suse.de>
4200
4201         PR debug/39285
4202         * dwarf2out.c (gen_enumeration_type_die): Handle CONST_DECLs.
4203
4204 2009-02-24  Richard Guenther  <rguenther@suse.de>
4205             Zdenek Dvorak  <ook@ucw.cz>
4206
4207         PR tree-optimization/39233
4208         * tree-ssa-loop-ivopts.c (add_candidate_1): Do not except pointers
4209         from converting them to a generic type.
4210
4211 2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>
4212
4213         PR tree-optimization/39260
4214         * graphite.c (harmful_stmt_in_bb): Stop a SCoP when the basic block
4215         contains a condition with a real type.
4216         (build_scop_conditions_1): Conditions are always last_stmt of a bb.
4217
4218 2009-02-23  Jason Merrill  <jason@redhat.com>
4219
4220         PR c++/38880
4221         * varasm.c (initializer_constant_valid_p) [PLUS_EXPR]: Check
4222         narrowing_initializer_constant_valid_p.
4223         (narrowing_initializer_constant_valid_p): Don't return 
4224         null_pointer_node for adding a pointer to itself.
4225
4226 2009-02-23  Jan Hubicka  <jh@suse.cz>
4227
4228         PR c/12245
4229         * ggc.h (htab_create_ggc): Use ggc_free to free hashtable when
4230         resizing.
4231
4232 2009-02-23  Jan Hubicka  <jh@suse.cz>
4233
4234         PR tree-optimization/37709
4235         * tree.c (block_ultimate_origin): Move here from dwarf2out.
4236         * tree.h (block_ultimate_origin): Declare.
4237         * dwarf2out.c (block_ultimate_origin): Move to tree.c
4238         * tree-ssa-live.c (remove_unused_scope_block_p):
4239         Eliminate blocks containig no instructions nor live variables nor
4240         nested blocks.
4241         (dump_scope_block): New function.
4242         (remove_unused_locals): Enable removal of dead blocks by default;
4243         enable dumping at TDF_DETAILS.
4244
4245 2009-02-21  H.J. Lu  <hongjiu.lu@intel.com>
4246
4247         * config/i386/i386.c (classify_argument): Don't allow COImode
4248         and OImode.
4249         (function_arg_advance_32): Don't allow OImode.
4250         (function_arg_32): Likewise.
4251         (function_value_32): Likewise.
4252         (return_in_memory_32): Likewise.
4253         (function_arg_64): Remove OImode comment.
4254
4255 2009-02-21  H.J. Lu  <hongjiu.lu@intel.com>
4256
4257         PR target/39261
4258         * config/i386/i386.c (ix86_expand_vector_init_one_nonzero): Use
4259         ix86_expand_vector_set for V4DImode in 64bit mode only.
4260         (ix86_expand_vector_init_one_var): Likewise.
4261
4262 2009-02-21  Sebastian Pop  <sebastian.pop@amd.com>
4263
4264         * graphite.c (graphite_trans_loop_block): Adjust tile size to 51.
4265
4266 2009-02-21  Richard Sandiford  <rdsandiford@googlemail.com>
4267
4268         PR bootstrap/39257
4269         * loop-iv.c: Revert last change.
4270         * emit-rtl.c: Likewise.
4271
4272 2009-02-21  H.J. Lu  <hongjiu.lu@intel.com>
4273
4274         PR target/39256
4275         * config/i386/i386.c (type_natural_mode): Remove an extra
4276         space in the warning message.
4277         (function_value_32): Handle 32-byte vector modes.
4278         (return_in_memory_32): Likewise.
4279
4280 2009-02-21  Richard Sandiford  <rdsandiford@googlemail.com>
4281
4282         * loop-iv.c (truncate_value): New function.
4283         (iv_subreg, get_iv_value, iv_number_of_iterations): Use it instead
4284         of lowpart_subreg.
4285         (lowpart_subreg): Move to...
4286         * emit-rtl.c: ...here.
4287
4288 2009-02-21  Danny Smith  <dannysmith@users.sourceforge.net>
4289
4290         * config/i386/winnt.c (i386_pe_asm_output_aligned_decl_common): Revert
4291         accidental and undocumented change at revision 140860.
4292
4293 2009-02-21  Joseph Myers  <joseph@codesourcery.com>
4294
4295         * config/arm/arm.c (arm_gimplify_va_arg_expr): Update prototype to
4296         take gimple_seq * arguments.
4297         (arm_mangle_type): Use CONST_CAST_TREE on type argument passed to
4298         types_compatible_p langhook.
4299
4300 2009-02-20  Mark Mitchell  <mark@codesourcery.com>
4301             Joseph Myers  <joseph@codesourcery.com>
4302
4303         * config/arm/arm.c (arm_builtin_va_list): New function.
4304         (arm_expand_builtin_va_start): Likewise.
4305         (arm_gimplify_va_arg_expr): Likewise.
4306         (TARGET_BUILD_BUILTIN_VA_LIST): Define.
4307         (TARGET_BUILD_BUILTIN_VA_START): Likewise.
4308         (TARGET_BUILD_BUILTIN_VA_ARG_EXPR): Likewise.
4309         (va_list_type): New variable.
4310         (arm_mangle_type): Mangle va_list_type appropriately.
4311
4312 2009-02-20  Jakub Jelinek  <jakub@redhat.com>
4313
4314         PR middle-end/39157
4315         * Makefile.in (loop-invariant.o): Depend on $(PARAMS_H).
4316         * params.h (LOOP_INVARIANT_MAX_BBS_IN_LOOP): Define.
4317         * params.def (loop-invariant-max-bbs-in-loop): New parameter.
4318         * opts.c (decode_options): Set loop-invariant-max-bbs-in-loop
4319         parameter to 1000 for -O1 by default.
4320         * doc/invoke.texi (loop-invariant-max-bbs-in-loop): Document new
4321         parameter.
4322         * loop-invariant.c: Include params.h.
4323         (move_loop_invariants): Don't call move_single_loop_invariants on
4324         very large loops.
4325
4326 2009-02-20  Jaka Mocnik  <jaka@xlab.si>
4327
4328         * calls.c (emit_library_call_value_1): Use slot_offset instead of
4329         offset when calculating bounds for indexing stack_usage_map.  Fixes
4330         a buffer overflow with certain target setups.
4331
4332 2009-02-20  Jakub Jelinek  <jakub@redhat.com>
4333
4334         PR target/39240
4335         * calls.c (expand_call): Clear try_tail_call if caller and callee
4336         disagree in promotion of function return value.
4337
4338 2009-02-19  Jakub Jelinek  <jakub@redhat.com>
4339
4340         PR target/39175
4341         * c-common.c (c_determine_visibility): If visibility changed and
4342         DECL_RTL has been already set, call make_decl_rtl to update symbol
4343         flags.
4344
4345 2009-02-19  H.J. Lu  <hongjiu.lu@intel.com>
4346
4347         PR c++/39188
4348         * varasm.c (assemble_variable): Don't check DECL_NAME when
4349         globalizing a variable.
4350
4351 2009-02-19  Joseph Myers  <joseph@codesourcery.com>
4352
4353         PR c/38483
4354         * builtins.c (gimplify_va_arg_expr): Evaluate the va_list
4355         expression before any __builtin_trap call.
4356         * c-typeck.c (build_function_call): Convert and check function
4357         arguments before generating a call to a trap.  Evaluate the
4358         function arguments before the trap.
4359
4360 2009-02-19  Uros Bizjak  <ubizjak@gmail.com>
4361
4362         PR target/39228
4363         * config/i386/i386.md (isinfxf2): Split from isinf<mode>2.
4364         (UNSPEC_FXAM_MEM): New unspec.
4365         (fxam<mode>2_i387_with_temp): New insn and split pattern.
4366         (isinf<mode>2): Use MODEF mode iterator.  Force operand[1] through
4367         memory using fxam<mode>2_i387_with_temp to remove excess precision.
4368
4369 2009-02-19  Richard Guenther  <rguenther@suse.de>
4370
4371         PR tree-optimization/39207
4372         PR tree-optimization/39074
4373         * tree-ssa-structalias.c (storedanything_id, var_storedanything,
4374         storedanything_tree): New.
4375         (do_ds_constraint): Simplify ANYTHING shortcutting.  Update
4376         the STOREDANYTHING solution if the lhs solution contains ANYTHING.
4377         (build_succ_graph): Add edges from STOREDANYTHING to all
4378         non-direct nodes.
4379         (init_base_vars): Initialize STOREDANYTHING.
4380         (compute_points_to_sets): Free substitution info after
4381         building the succ graph.
4382         (ipa_pta_execute): Likewise.
4383
4384         * tree-ssa-structalias.c (struct variable_info): Add may_have_pointers
4385         field.
4386         (do_ds_constraint): Do not add to special var or non-pointer
4387         field solutions.
4388         (type_could_have_pointers): Split out from ...
4389         (could_have_pointers): ... here.  For arrays use the element type.
4390         (create_variable_info_for): Initialize may_have_pointers.
4391         (new_var_info): Likewise.
4392         (handle_lhs_call): Make the HEAP variable unknown-sized.
4393         (intra_create_variable_infos): Use a type with pointers for
4394         PARM_NOALIAS, make it unknown-sized.
4395
4396 2009-02-18  H.J. Lu  <hongjiu.lu@intel.com>
4397
4398         PR target/39224
4399         * config/i386/i386.c (ix86_return_in_memory): Properly check ABI.
4400
4401 2009-02-18  Jason Merrill  <jason@redhat.com>
4402
4403         PR target/39179
4404         * tree-ssa-ccp.c (get_symbol_constant_value): Don't assume zero
4405         value if DECL_EXTERNAL.
4406         * tree-sra.c (sra_walk_gimple_assign): Likewise.
4407         * target.h (gcc_target::binds_local_p): Clarify "module".
4408         * tree.h (TREE_PUBLIC): Clarify "module".
4409
4410 2009-02-17  Xuepeng Guo  <xuepeng.guo@intel.com>
4411
4412         PR target/38891
4413         * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move the hunk of
4414         initialization for MS_ABI prior to the hunk of !TARGET_MMX.
4415
4416 2009-02-17  H.J. Lu  <hongjiu.lu@intel.com>
4417
4418         PR target/39082
4419         * c.opt (Wabi): Support C and ObjC.
4420         (Wpsabi): New.
4421
4422         * c-opts.c (c_common_handle_option): Handle OPT_Wabi.
4423
4424         * config/i386/i386.c (classify_argument): Warn once about the ABI
4425         change when passing union with long double.
4426
4427         * doc/invoke.texi: Update -Wabi for warning psABI changes.
4428
4429 2009-02-18  Joseph Myers  <joseph@codesourcery.com>
4430
4431         PR c/35447
4432         * c-parser.c (c_parser_compound_statement): Always enter and leave
4433         a scope.
4434
4435 2009-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
4436
4437         PR target/34587
4438         * config/darwin.h (SUPPORTS_INIT_PRIORITY): Define.
4439
4440 2009-02-18  Jakub Jelinek  <jakub@redhat.com>
4441
4442         PR tree-optimization/36922
4443         * tree-data-ref.c (initialize_matrix_A): Handle BIT_NOT_EXPR.
4444         * tree-scalar-evolution.c (interpret_rhs_expr, instantiate_scev_1):
4445         Likewise.
4446
4447 2009-02-17  Richard Sandiford  <rdsandiford@googlemail.com>
4448
4449         * config/mips/mips.c (mips_override_options): Set flag_dwarf2_cfi_asm
4450         to 0 for EABI64.
4451
4452 2009-02-17  Richard Sandiford  <rdsandiford@googlemail.com>
4453
4454         * config/mips/mips.md (type): Reclassify lui_movf as "unknown".
4455
4456 2009-02-17  Richard Sandiford  <rdsandiford@googlemail.com>
4457
4458         * config/mips/mips.c (mips_gimplify_va_arg_expr): Fix invalid
4459         tree sharing.
4460
4461 2009-02-17  Ruan Beihong  <ruanbeihong@gmail.com>
4462             Richard Sandiford  <rdsandiford@googlemail.com>
4463
4464         * config/mips/mips.c (CODE_FOR_loongson_biadd): Delete.
4465         * config/mips/loongson.md (reduc_uplus_<mode>): Rename to...
4466         (loongson_biadd): ...this.
4467
4468 2009-02-17  Richard Guenther  <rguenther@suse.de>
4469
4470         PR tree-optimization/39202
4471         * tree-ssa-structalias.c (do_structure_copy): Before collapsing
4472         a var make sure to follow existing collapses.
4473
4474 2009-02-17  Richard Guenther  <rguenther@suse.de>
4475
4476         PR middle-end/39214
4477         * langhooks.c (lhd_print_error_function): Check for NULL block.
4478
4479 2009-02-17  Richard Guenther  <rguenther@suse.de>
4480
4481         PR tree-optimization/39204
4482         * tree-ssa-pre.c (phi_translate_1): Lookup the value-number
4483         of the PHI arg.
4484
4485 2009-02-17  Uros Bizjak  <ubizjak@gmail.com>
4486
4487         * config/soft-fp/double.h: Update from glibc CVS.
4488
4489 2009-02-17  Richard Guenther  <rguenther@suse.de>
4490
4491         PR tree-optimization/39207
4492         * tree-ssa-structalias.c (find_what_p_points_to): Do not emit
4493         strict-aliasing warnings for pointers pointing to NULL.
4494
4495 2009-02-16  Joseph Myers  <joseph@codesourcery.com>
4496
4497         PR c/35446
4498         * c-parser.c (c_parser_braced_init): Call pop_init_level when
4499         skipping until next close brace.
4500
4501 2009-02-16  H.J. Lu  <hongjiu.lu@intel.com>
4502
4503         PR target/37049
4504         * config/i386/i386.c (ix86_expand_push): Set memory alignment
4505         to function argument boundary.
4506
4507 2009-02-16  Hariharan Sandanagobalane  <hariharan@picochip.com>
4508
4509         * config/picochip/picochip.md (lea_add): Allow any nonimmediate
4510         in the lea_add. Reload eventually constraints it properly.
4511         * config/picochip/constraints.md : Remove the target constraint
4512         "b", since it is not needed anymore.
4513
4514 2009-02-16  Jakub Jelinek  <jakub@redhat.com>
4515
4516         * gthr-dce.h: Uglify function parameter and local variable names.
4517         * gthr-gnat.h: Likewise.
4518         * gthr-mipssde.h: Likewise.
4519         * gthr-nks.h: Likewise.
4520         * gthr-posix95.h: Likewise.
4521         * gthr-posix.h: Likewise.
4522         * gthr-rtems.h: Likewise.
4523         * gthr-single.h: Likewise.
4524         * gthr-solaris.h: Likewise.
4525         * gthr-tpf.h: Likewise.
4526         * gthr-vxworks.h: Likewise.
4527         * gthr-win32.h: Likewise.
4528
4529 2009-02-15  H.J. Lu  <hongjiu.lu@intel.com>
4530
4531         PR target/39196
4532         * config/i386/i386.md: Restrict the new peephole2 to move
4533         between MMX/SSE registers.
4534
4535 2009-02-15  Richard Guenther  <rguenther@suse.de>
4536
4537         Revert
4538         2009-02-13  Richard Guenther  <rguenther@suse.de>
4539
4540         * configure.ac: Enable LFS.
4541         * configure: Re-generate.
4542         * config.in: Likewise.
4543
4544 2009-02-13  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
4545
4546         * config/spu/spu_internals.h (spu_sr, spu_sra, spu_srqw,
4547         spu_srqwbyte, spu_srqwbytebc): Define.
4548         * config/spu/spu-builtins.def (spu_sr, spu_sra, spu_srqw,
4549         spu_srqwbyte, spu_srqwbytebc): New overloaded builtins.
4550         * config/spu/spu.md ("shrqbybi_<mode>", "shrqbi_<mode>",
4551         "shrqby_<mode>"): New insn-and-split patterns.
4552         * config/spu/spu.c (expand_builtin_args): Determine and return
4553         number of operands using spu_builtin_description data.
4554         (spu_expand_builtin_1): Use it.
4555
4556 2009-02-13  Steve Ellcey  <sje@cup.hp.com>
4557
4558         PR target/38056
4559         * config/ia64/ia64.c (ia64_function_ok_for_sibcall): Check
4560         TARGET_CONST_GP.
4561
4562 2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>
4563
4564         PR target/39149
4565         * config/i386/i386.c (override_options): Correct warning
4566         messages for -malign-loops, -malign-jumps and -malign-functions.
4567
4568 2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>
4569
4570         PR target/39152
4571         * config/i386/i386.md: Restrict the new peephole2 to move
4572         between the general purpose registers.
4573
4574 2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>
4575
4576         PR target/39162
4577         * config/i386/i386.c (type_natural_mode): Add a new argument.
4578         Return the original mode and warn ABI change if vector size is 32byte.
4579         (function_arg_advance): Updated.
4580         (function_arg): Likewise.
4581         (ix86_function_value): Likewise.
4582         (ix86_return_in_memory): Likewise.
4583         (ix86_sol10_return_in_memory): Likewise.
4584         (ix86_gimplify_va_arg): Likewise.
4585         (function_arg_32): Don't warn ABX ABI change here.
4586         (function_arg_64): Likewise.
4587
4588 2009-02-13  Bernd Schmidt  <bernd.schmidt@analog.com>
4589
4590         * loop-iv.c (implies_p): In the final case, test that operands 0
4591         of the two comparisons match.
4592
4593         * config/bfin/bfin.c (find_prev_insn_start): New function.
4594         (bfin_optimize_loop): Use it in some cases instead of PREV_INSN.
4595         (find_next_insn_start): Move.
4596
4597 2009-02-13  Richard Guenther  <rguenther@suse.de>
4598
4599         * configure.ac: Enable LFS.
4600         * configure: Re-generate.
4601         * config.in: Likewise.
4602
4603 2009-02-13  Joseph Myers  <joseph@codesourcery.com>
4604
4605         PR c/35444
4606         * c-parser.c (c_parser_parms_list_declarator): Discard pending
4607         sizes on syntax error after some arguments have been parsed.
4608
4609 2009-02-12  Jakub Jelinek  <jakub@redhat.com>
4610
4611         * doc/invoke.texi (-fira): Remove.
4612
4613 2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>
4614
4615         * caller-save.c: Replace regclass.c with reginfo.c in comments.
4616         * recog.c: Likewise.
4617         * rtl.h: Likewise.
4618
4619 2009-02-12  Uros Bizjak  <ubizjak@gmail.com>
4620
4621         * longlong.h (sub_ddmmss): New for ia64. Ported from GMP 4.2.
4622         (umul_ppmm): Likewise.
4623         (count_leading_zeros): Likewise.
4624         (count_trailing_zeros): Likewise.
4625         (UMUL_TIME): Likewise.
4626
4627 2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>
4628
4629         * config.gcc (ia64*-*-linux*): Add ia64/t-fprules-softfp and
4630         soft-fp/t-softfp to tmake_file.
4631
4632         * config/ia64/ia64.c (ia64_soft_fp_init_libfuncs): New.
4633         (ia64_expand_compare): Use HPUX library for TFmode only for HPUX.
4634         (ia64_builtins) [IA64_BUILTIN_COPYSIGNQ, IA64_BUILTIN_FABSQ,
4635         IA64_BUILTIN_INFQ]: New.
4636         (ia64_init_builtins): Initialize __builtin_infq,
4637         __builtin_fabsq and __builtin_copysignq if not HPUX.
4638         (ia64_expand_builtin): Handle IA64_BUILTIN_COPYSIGNQ,
4639         IA64_BUILTIN_FABSQ and IA64_BUILTIN_INFQ.
4640
4641         * config/ia64/lib1funcs.asm (__divtf3): Define only if
4642         SHARED is defined.
4643         (__fixtfti): Likewise.
4644         (__fixunstfti): Likewise.
4645         (__floattitf): Likewise.
4646
4647         * config/ia64/libgcc-glibc.ver: New.
4648         * config/ia64/t-fprules-softfp: Likewise.
4649         * config/ia64/sfp-machine.h: Likewise.
4650
4651         * config/ia64/linux.h (LIBGCC2_HAS_TF_MODE): New.
4652         (LIBGCC2_TF_CEXT): Likewise.
4653         (TF_SIZE): Likewise.
4654         (TARGET_INIT_LIBFUNCS): Likewise.
4655
4656         * config/ia64/t-glibc (SHLINB_MAPFILES):
4657         Add $(srcdir)/config/ia64/libgcc-glibc.ver.
4658
4659 2009-02-12  H.J. Lu  <hongjiu.lu@intel.com>
4660
4661         * config/i386/i386.c (construct_container): Rewrite processing
4662         BLKmode with X86_64_SSE_CLASS.
4663
4664 2009-02-12  Paolo Bonzini  <bonzini@gnu.org>
4665
4666         PR target/39152
4667         * config/i386/i386.md: Replace simplify_replace_rtx with
4668         replace_rtx in the new peephole2.
4669
4670 2009-02-12  Nathan Sidwell  <nathan@codesourcery.com>
4671
4672         * doc/invoke.texi (Optimize Options): Stop claiming inlining and
4673         loop unrolling do not happen at -O2.
4674
4675 2009-02-12  Michael Matz  <matz@suse.de>
4676
4677         * gcc.c (ASM_DEBUG_SPEC): Check for -g0.
4678
4679 2009-02-12  Jakub Jelinek  <jakub@redhat.com>
4680
4681         * dwarf2out.c (dwarf2out_finish): Force output of comp_unit_die
4682         for -g3.
4683
4684 2009-02-12  Ben Elliston  <bje@au.ibm.com>
4685
4686         * config/rs6000/rs6000.md (allocate_stack): Use _stack form of
4687         patterns when updating the back chain.  Missed in the 2009-02-10
4688         change.
4689
4690 2009-02-11  Janis Johnson  <janis187@us.ibm.com>
4691
4692         * doc/extend.texi (Decimal Floating Types): Update identifier of
4693         draft TR and list of missing support.
4694
4695 2009-02-11  Jakub Jelinek  <jakub@redhat.com>
4696
4697         PR middle-end/39154
4698         * gimplify.c (omp_notice_variable): If adding GOVD_SEEN
4699         bit to variable length decl's flags, add it also to its
4700         pointer replacement variable.
4701
4702 2009-02-11  Uros Bizjak  <ubizjak@gmail.com>
4703             Jakub Jelinek  <jakub@redhat.com>
4704
4705         PR target/39118
4706         * config/i386/i386.md (UNSPEC_MEMORY_BLOCKAGE): New constant.
4707         (memory_blockage): New expander.
4708         (*memory_blockage): New insn pattern.
4709         * config/i386/i386.c (ix86_expand_prologue): Use memory_blockage
4710         instead of general blockage at the end of function prologue when
4711         frame pointer is used to access red zone area.  Do not emit blockage
4712         when profiling, it is emitted in generic code.
4713         (ix86_expand_epilogue): Emit memory_blockage at the beginning of
4714         function epilogue when frame pointer is used to access red zone area.
4715
4716 2009-02-11  Paolo Bonzini  <bonzini@gnu.org>
4717
4718         PR target/38824
4719         * config/i386/i386.md: Add two new peephole2 to avoid mov followed
4720         by arithmetic with memory operands.
4721         * config/i386/predicates.md (commutative_operator): New.
4722
4723 2009-02-10  Janis Johnson  <janis187@us.ibm.com>
4724
4725         * doc/extend.texi (Fixed-Point Types): Break long paragraphs into
4726         bulleted lists.
4727
4728 2009-02-10  Eric Botcazou  <ebotcazou@adacore.com>
4729
4730         * alias.h (record_alias_subset): Declare.
4731         * alias.c (record_alias_subset): Make global.
4732
4733 2009-02-10  Nick Clifton  <nickc@redhat.com>
4734
4735         * tree-parloops.c: Change license to GPLv3.
4736         * ipa-struct-reorg.c: Change license to GPLv3.
4737         * ipa-struct-reorg.h: Change license to GPLv3.
4738
4739 2009-02-10  Steve Ellcey  <sje@cup.hp.com>
4740
4741         PR c/39084
4742         * c-decl.c (start_struct): Return NULL on error.
4743
4744 2009-02-10  Jakub Jelinek  <jakub@redhat.com>
4745
4746         PR middle-end/39124
4747         * cfgloopmanip.c (remove_path): Call remove_bbs after
4748         cancel_loop_tree, not before it.
4749
4750         PR target/39139
4751         * function.h (struct function): Add has_local_explicit_reg_vars bit.
4752         * gimplify.c (gimplify_bind_expr): Set it if local DECL_HARD_REGISTER
4753         VAR_DECLs were seen.
4754         * tree-ssa-live.c (remove_unused_locals): Recompute
4755         cfun->has_local_explicit_reg_vars.
4756         * tree-ssa-sink.c (statement_sink_location): Don't sink BLKmode
4757         copies or clearings if cfun->has_local_explicit_reg_vars.
4758
4759 2009-02-10  Uros Bizjak  <ubizjak@gmail.com>
4760
4761         PR target/39118
4762         * config/i386/i386.c (expand_prologue): Emit blockage at the end
4763         of function prologue when frame pointer is used to access
4764         red zone area.
4765
4766 2009-02-10  Richard Guenther  <rguenther@suse.de>
4767
4768         PR middle-end/39127
4769         * gimplify.c (gimple_regimplify_operands): Always look if
4770         we need to create a temporary.
4771
4772 2009-02-10  Richard Guenther  <rguenther@suse.de>
4773
4774         PR tree-optimization/39132
4775         * tree-loop-distribution.c (todo): New global var.
4776         (generate_memset_zero): Trigger TODO_rebuild_alias.
4777         (tree_loop_distribution): Return todo.
4778
4779 2009-02-10  H.J. Lu  <hongjiu.lu@intel.com>
4780
4781         PR target/39119
4782         * config/i386/i386.c (x86_64_reg_class): Remove X86_64_AVX_CLASS.
4783         (x86_64_reg_class_name): Removed.
4784         (classify_argument): Return 0 if bytes > 32.  Return 0 if the
4785         first one isn't X86_64_SSE_CLASS or any other ones aren't
4786         X86_64_SSEUP_CLASS when size > 16bytes.  Don't turn
4787         X86_64_SSEUP_CLASS into X86_64_SSE_CLASS if the preceded one
4788         is X86_64_SSEUP_CLASS.  Set AVX modes to 1 X86_64_SSE_CLASS
4789         and 3 X86_64_SSEUP_CLASS.
4790         (construct_container): Remove X86_64_AVX_CLASS.  Handle 4
4791         registers with 1 X86_64_SSE_CLASS and 3 X86_64_SSEUP_CLASS.
4792
4793 2009-02-10  Ben Elliston  <bje@au.ibm.com>
4794
4795         * config/rs6000/rs6000.md (allocate_stack): Always use an update
4796         form instruction to update the stack back chain word, even if the
4797         user has disabled the generation of update instructions.
4798         (movdi_<mode>_update_stack): New.
4799         (movsi_update_stack): Likewise.
4800         * config/rs6000/rs6000.c (rs6000_emit_allocate_stack): Likewise,
4801         always use an update form instruction to update the stack back
4802         chain word.
4803
4804 2009-02-09  Sebastian Pop  <sebastian.pop@amd.com>
4805
4806         PR middle-end/38953
4807         * graphite.c (if_region_set_false_region): After moving a region in
4808         the false branch of a condition, remove the empty dummy basic block.
4809         (gloog): Remove wrong fix for PR38953.
4810
4811 2009-02-09  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
4812
4813         * config/spu/spu.c (array_to_constant): Fix (latent) wrong-code
4814         generation due to implicit sign extension.
4815
4816 2009-02-09  Eric Botcazou  <ebotcazou@adacore.com>
4817
4818         PR middle-end/38981
4819         * tree-ssa-coalesce.c (add_coalesce): Cap the costs of coalesce pairs
4820         at MUST_COALESCE_COST-1 instead of MUST_COALESCE_COST.
4821
4822 2009-02-09  Richard Guenther  <rguenther@suse.de>
4823
4824         PR middle-end/35202
4825         * convert.c (convert_to_real): Disable (float)fn((double)x)
4826         to fnf(x) conversion if errno differences may occur and
4827         -fmath-errno is set.
4828
4829 2009-02-07  Anatoly Sokolov  <aesok@post.ru>
4830
4831         * config/avr/avr.c (avr_mcu_t): Add ata6289 device.
4832         * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
4833         * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).
4834
4835 2009-02-06  Joseph Myers  <joseph@codesourcery.com>
4836
4837         PR c/35434
4838         * c-common.c (handle_alias_attribute): Disallow attribute for
4839         anything not a FUNCTION_DECL or VAR_DECL.
4840
4841 2009-02-06  Janis Johnson  <janis187@us.ibm.com>
4842
4843         PR c/39035
4844         * real.c (do_compare): Special-case compare of zero against
4845         decimal float value.
4846
4847 2009-02-06  Joseph Myers  <joseph@codesourcery.com>
4848
4849         PR c/36432
4850         * c-decl.c (grokdeclarator): Don't treat [] declarators in fields
4851         as indicating flexible array members unless the field itself is
4852         being declarared as the incomplete array.
4853
4854 2009-02-06  Jan Hubicka  <jh@suse.cz>
4855
4856         PR tree-optimization/38844
4857         * ipa-inline.c (try_inline): Stop inlining recursion when edge
4858         is already inlined.
4859
4860 2009-02-06  Richard Guenther  <rguenther@suse.de>
4861
4862         PR middle-end/38977
4863         * tree-cfg.c (need_fake_edge_p): Force a fake edge for
4864         fork because we may expand it as __gcov_fork.
4865
4866 2009-02-06  Nick Clifton  <nickc@redhat.com>
4867
4868         * config/m32c/m32c.h (PCC_BITFIELD_TYPE_MATTERS): Define to zero.
4869
4870 2009-02-06  Paolo Bonzini  <bonzini@gnu.org>
4871
4872         PR tree-optimization/35659
4873         * tree-ssa-sccvn.c (vn_constant_eq, vn_reference_eq, vn_nary_op_eq
4874         vn_phi_eq): Shortcut if hashcode does not match.
4875         (vn_reference_op_compute_hash): Do not call iterative_hash_expr for
4876         NULL operands.
4877         * tree-ssa-pre.c (pre_expr_hash): Look at hashcode if available,
4878         and avoid iterative_hash_expr.
4879         (FOR_EACH_VALUE_ID_IN_SET): New.
4880         (value_id_compare): Remove.
4881         (sorted_array_from_bitmap_set): Use FOR_EACH_VALUE_ID_IN_SET to
4882         sort expressions by value id.
4883
4884 2009-02-05  Kaz Kojima  <kkojima@gcc.gnu.org>
4885
4886         PR target/38991
4887         * config/sh/predicates.md (general_movsrc_operand): Don't check
4888         the subreg of system registers here.
4889
4890 2009-02-05  Jakub Jelinek  <jakub@redhat.com>
4891
4892         PR c++/39106
4893         * cgraphunit.c (cgraph_function_versioning): Clear also DECL_VIRTUAL_P
4894         on the copied decl.
4895
4896 2009-02-05  Paolo Bonzini  <bonzini@gnu.org>
4897
4898         PR rtl-optimization/39110
4899         * rtlanal.c (rtx_addr_can_trap_p_1): Shortcut unaligned
4900         addresses, not aligned ones.
4901
4902 2009-02-05  Daniel Berlin  <dberlin@dberlin.org>
4903             Richard Guenther  <rguenther@suse.de>
4904
4905         PR tree-optimization/39100
4906         * tree-ssa-structalias.c (do_ds_constraint): Actually do what the
4907         comment says and add edges.
4908
4909 2009-02-05  Joseph Myers  <joseph@codesourcery.com>
4910
4911         PR c/35435
4912         * c-common.c (handle_tls_model_attribute): Ignore attribute for
4913         non-VAR_DECLs without checking DECL_THREAD_LOCAL_P.
4914
4915 2009-02-04  Tobias Grosser  <grosser@fim.uni-passau.de> 
4916
4917         * graphite.c (bb_in_sese_p, sese_build_livein_liveouts_use,
4918         sese_build_livein_liveouts_bb, sese_build_livein_liveouts,
4919         register_bb_in_sese, new_sese, free_sese): Moved.
4920         (dot_scop_1, build_scop_loop_nests, build_loop_iteration_domains,
4921         outermost_loop_in_scop, build_scop_iteration_domain,
4922         expand_scalar_variables_ssa_name, get_vdef_before_scop,
4923         limit_scops): Use bb_in_sese_p instead of bb_in_scop_p.
4924         Use loop_in_sese_p instead of loop_in_scop_p.
4925         (new_graphite_bb, gloog): Do not initialize SCOP_BBS_B.
4926         (new_scop, free_scop): Remove SCOP_LOOP2CLOOG_LOOP and SCOP_BBS_B.
4927         (scopdet_basic_block_info): Fix bug in scop detection.
4928         (new_loop_to_cloog_loop_str, hash_loop_to_cloog_loop,
4929         eq_loop_to_cloog_loop): Remove.
4930         (nb_loops_around_loop_in_scop, nb_loop
4931         ref_nb_loops): Moved here...
4932         * graphite.h (ref_nb_loops): ... from here.
4933         (struct scop): Remove bbs_b bitmap and loop2cloog_loop.
4934         (loop_domain_dim, loop_iteration_vector_dim): Remove.
4935         (SCOP_BBS_B, bb_in_scop_p, loop_in_scop_p): Removed.
4936         * testsuite/gcc.dg/graphite/scop-19.c: New
4937
4938 2009-02-04  Paolo Bonzini  <bonzini@gnu.org>
4939             Hans-Peter Nilsson  <hp@axis.com>
4940
4941         PR rtl-optimization/37889
4942         * rtlanal.c (rtx_addr_can_trap_p_1): Add offset and size arguments.
4943         Move offset handling from PLUS to before the switch.  Use new
4944         arguments when considering SYMBOL_REFs too.
4945         (rtx_addr_can_trap_p): Pass dummy offset and size.
4946         (enum may_trap_p_flags): Remove.
4947         (may_trap_p_1): Pass size from MEM_SIZE.
4948
4949         PR rtl-optimization/38921
4950         * loop-invariant.c (find_invariant_insn): Use may_trap_or_fault_p.
4951         * rtl.h (may_trap_after_code_motion_p): Delete prototype.
4952         * rtlanal.c (may_trap_after_code_motion_p): Delete.
4953         (may_trap_p, may_trap_or_fault_p): Pass 0/1 as flags.
4954
4955 2009-02-04  H.J. Lu  <hongjiu.lu@intel.com>
4956
4957         AVX Programming Reference (January, 2009)
4958         * config/i386/sse.md (*vpclmulqdq): New.
4959
4960 2009-02-04  Jakub Jelinek  <jakub@redhat.com>
4961
4962         PR tree-optimization/38977
4963         PR gcov-profile/38292
4964         * calls.c (special_function_p): Disregard __builtin_ prefix.
4965
4966 2009-02-04  Hariharan Sandanagobalane  <hariharan@picochip.com>
4967
4968         * config/picochip/picochip.c (GO_IF_LEGITIMATE_ADDRESS): Disallow
4969         non-indexable addresses even before reload.
4970
4971 2009-02-03  Joseph Myers  <joseph@codesourcery.com>
4972
4973         PR c/29129
4974         * c-decl.c (grokdeclarator): Mark [*] arrays in field declarators
4975         as having variable size.  Do not give an error for unnamed
4976         parameters with [*] declarators.  Give a warning for type names
4977         with [*] declarators and mark them as variable size.
4978         * c-parser.c (c_parser_sizeof_expression): Do not give an error
4979         for sizeof applied to [*] type names.
4980
4981 2009-02-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
4982
4983         PR C++/36607
4984         * convert.c (convert_to_integer): Treat OFFSET_TYPE like INTEGER_TYPE.
4985
4986 2009-02-03  Jakub Jelinek  <jakub@redhat.com>
4987
4988         * gcc.c (process_command): Update copyright notice dates.
4989         * gcov.c (print_version): Likewise.
4990         * gcov-dump.c (print_version): Likewise.
4991         * mips-tfile.c (main): Likewise.
4992         * mips-tdump.c (main): Likewise.
4993
4994 2009-02-03  Joseph Myers  <joseph@codesourcery.com>
4995
4996         PR c/35433
4997         * c-typeck.c (composite_type): Set TYPE_SIZE and TYPE_SIZE_UNIT
4998         for composite type involving a zero-length array type.
4999
5000 2009-02-03  Jakub Jelinek  <jakub@redhat.com>
5001
5002         PR target/35318
5003         * function.c (match_asm_constraints_1): Skip over
5004         initial optional % in the constraint.
5005
5006         PR inline-asm/39059
5007         * c-parser.c (c_parser_postfix_expression): If fixed point is not
5008         supported, don't accept FIXED_CSTs.
5009         * c-decl.c (finish_declspecs): Error if fixed point is not supported
5010         and _Sat is used without _Fract/_Accum.  Set specs->type to
5011         integer_type_node for cts_fract/cts_accum if fixed point is not
5012         supported.
5013
5014 2009-02-02  Catherine Moore  <clm@codesourcery.com>
5015
5016         * sde.h (SUBTARGET_ARM_SPEC): Don't assemble -fpic code as -mabicalls.
5017
5018 2009-02-02  Richard Sandiford  <rdsandiford@googlemail.com>
5019
5020         * config/mips/mips.h (FILE_HAS_64BIT_SYMBOLS): New macro.
5021         (ABI_HAS_64BIT_SYMBOLS): Use it.
5022         (DWARF2_ADDR_SIZE): Use it instead of ABI_HAS_64BIT_SYMBOLS.
5023
5024 2009-02-02  Paul Brook  <paul@codesourcery.com>
5025
5026         * config/arm/arm.md (arm_addsi3): Add r/r/k alternative.
5027
5028 2009-02-02  Jakub Jelinek  <jakub@redhat.com>
5029
5030         PR inline-asm/39058
5031         * recog.h (asm_operand_ok): Add constraints argument.
5032         * recog.c (asm_operand_ok): Likewise.  If it is set, for digits
5033         recurse on matching constraint.
5034         (check_asm_operands): Pass constraints as 3rd argument to
5035         asm_operand_ok.  Don't look up matching constraint here.
5036         * stmt.c (expand_asm_operands): Pass NULL as 3rd argument
5037         to asm_operand_ok.
5038
5039 2009-02-02  Ben Elliston  <bje@au.ibm.com>
5040
5041         * doc/tm.texi (Storage Layout): Fix TARGET_ALIGN_ANON_BITFIELD and
5042         TARGET_NARROW_VOLATILE_BITFIELD macro names.
5043
5044 2009-01-31  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5045
5046         * doc/install.texi (hppa*-hp-hpux*): Update binutils and linker
5047         information.  Remove some obsolete information.  Reorganize.
5048
5049         * config/pa/fptr.c: Revert license to GPL 2.
5050         * config/pa/milli64.S: Likewise.
5051
5052 2009-01-31  Dave Korn  <dave.korn.cygwin@gmail.com>
5053
5054         PR target/38904
5055         * mkmap-flat.awk (END):  Use pe_dll command-line arg to pass
5056         LIBRARY name in, instead of hard-coding it.
5057         * config.gcc (i[34567]86-*-pe | i[34567]86-*-cygwin*):  Add an
5058         extra target make frag to tmake_files according to EH model.
5059         (i[34567]86-*-mingw* | x86_64-*-mingw*):  Likewise.
5060         * config/i386/t-dw2-eh, config/i386/t-sjlj-eh:  Add new target
5061         frags that define makefile variable EH_MODEL appropriately.
5062         * config/i386/cygming.h (DWARF2_UNWIND_INFO):  Add comment.
5063         * config/i386/cygwin.h (LIBGCC_EH_EXTN):  Define to nothing or
5064         to "-sjlj" according to type of EH configured.
5065         (LIBGCC_SONAME):  Concatenate it to shared library base name.
5066         * config/i386/mingw32.h (LIBGCC_EH_EXTN):  Define to "_dw2" or
5067         to "_sjlj" according to type of EH configured.
5068         (LIBGCC_SONAME):  Concatenate it to shared library base name.
5069         * config/i386/t-cygming (SHLIB_SONAME):  Use EH_MODEL.
5070         (SHLIB_LINK):  Add missing semicolon to if-else construct.
5071         (SHLIB_MKMAP_OPTS):  Pass library name to mkmap-flat.awk as
5072         string value of "pe_dll" command-line option.
5073         * config/i386/t-cygwin (SHLIB_EH_EXTENSION):  New helper.
5074         (SHLIB_SONAME):  Use it when overriding t-cygming default.
5075         (SHLIB_IMPLIB):  Override t-cygming default.
5076         (SHLIB_MKMAP_OPTS):  Pass library name to mkmap-flat.awk as
5077         string value of "pe_dll" command-line option.
5078
5079 2009-01-31  Dave Korn  <dave.korn.cygwin@gmail.com>
5080
5081         PR target/38952
5082         * config/i386/i386.c (ix86_builtin_setjmp_frame_value): New.
5083         (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Override default to point at it.
5084
5085 2009-01-31  Richard Guenther  <rguenther@suse.de>
5086
5087         PR tree-optimization/38937
5088         * tree-ssa-structalias.c (do_sd_constraint): Do not shortcut
5089         computing the transitive closure.
5090
5091 2009-01-30  Richard Guenther  <rguenther@suse.de>
5092
5093         PR tree-optimization/39041
5094         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
5095         Propagate variable indices only if the types match for this stmt.
5096
5097 2009-01-30  Jakub Jelinek  <jakub@redhat.com>
5098
5099         PR target/39013
5100         * c-decl.c (pop_scope): Set DECL_EXTERNAL for functions declared
5101         inline but never defined.
5102
5103 2009-01-30  Wolfgang Gellerich  <gellerich@de.ibm.com>
5104
5105         * config/s390/s390.md (*insv<mode>_reg_extimm): Removed.
5106         (*insv_h_di_reg_extimm): New insn.
5107         (*insv_l<mode>_reg_extimm): New insn.
5108
5109 2009-01-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
5110
5111         * config/picochip/picochip.c (flag_conserve_stack): set
5112         PARAM_LARGE_STACK_FRAME and PARAM_STACK_FRAME_GROWTH to zero under
5113         fconserve-stack. Reduce call-overhead used by inliner.
5114
5115 2009-01-30  Hariharan Sandanagobalane  <hariharan@picochip.com>
5116
5117         PR/38157
5118         * common.opt (flag_conserve_stack): Initialised to zero.
5119
5120 2009-01-30  Kai Tietz  <kai.tietz@onevision.com>
5121
5122         PR/39002
5123         * config/i386/i386.c (ix86_can_use_return_insn_p): Check for nsseregs.
5124         (ix86_expand_epilogue): Take nsseregs in account to use proper restore
5125         method.
5126
5127 2009-01-29  H.J. Lu  <hongjiu.lu@intel.com>
5128
5129         * ira-color.c (allocno_reload_assign): Update comments.
5130         * regmove.c (regmove_optimize): Likewise.
5131
5132         * ra.h: Removed.
5133
5134 2009-01-29  Robert Millan  <rmh@aybabtu.com>
5135
5136         * gcc/config.gcc: Recognize GNU/kOpenSolaris (*-*-kopensolaris*-gnu).
5137         * gcc/config/i386/kopensolaris-gnu.h: New file.  Undefine
5138         `MD_UNWIND_SUPPORT'.
5139         * gcc/config/kopensolaris-gnu.h: New file (based on kfreebsd-gnu.h).
5140
5141 2009-01-29  Kazu Hirata  <kazu@codesourcery.com>
5142
5143         PR tree-optimization/39007
5144         * tree-loop-distribution.c (generate_builtin): Use
5145         recompute_dominator to compute the immediate dominator of the
5146         basic block just after the loop.
5147
5148 2009-01-29  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
5149
5150         * config/i386/sol2-10.h [!HAVE_AS_IX86_DIFF_SECT_DELTA]
5151         (ASM_OUTPUT_DWARF_PCREL): Define.
5152
5153 2009-01-29  Vladimir Makarov  <vmakarov@redhat.com>
5154
5155         * doc/tm.texi (TARGET_IRA_COVER_CLASSES): Modify description.
5156         * doc/passes.texi: Remove entries about regclass, local-alloc, and
5157         global.  Modify entries about regmove and IRA.
5158
5159         * ra-conflict.c: Remove the file.
5160
5161         * reload.c (push_reload, find_dummy_reload): Remove flag_ira.
5162
5163         * tree-pass.h (pass_local_alloc, pass_global_alloc): Remove.
5164         (pass_regclass_init): Rename to pass_reginfo_init.
5165
5166         * cfgloopanal.c (estimate_reg_pressure_cost): Remove flag_ira.
5167
5168         * toplev.h (flag_ira): Remove.
5169
5170         * caller-save.c (setup_save_areas): Remove flag_ira.
5171
5172         * ira-color.c (ira_reuse_stack_slot, ira_mark_new_stack_slot): Ditto.
5173
5174         * global.c: Remove the file.
5175
5176         * opts.c (decode_options): Remove flag_ira.
5177
5178         * hard-reg-set.h (losing_caller_save_reg_set): Remove.
5179
5180         * regmove.c: Modify file description.
5181         (find_use_as_address, try_auto_increment): Define them only if
5182         AUTO_INC_DEC is defined.
5183         (replacement_quality, replace_in_call_usage, fixup_match_1,
5184         stable_and_no_regs_but_for_p): Remove.
5185         (reg_set_in_bb): Make it static.
5186         (regmove_optimize): Remove flag_ira and code which worked for
5187         !flag_ira.
5188
5189         * local-alloc.c: Remove the file.
5190
5191         * common.opt (fira): Remove.
5192
5193         * ira.c: Include except.h.
5194         (eliminable_regset): Move from global.c.
5195         (mark_elimination): Ditto.  Remove flag_ira.
5196         (reg_renumber, struct equivalence, reg_equiv, equiv_mem,
5197         equiv_mem_modified, validate_equiv_mem_from_store,
5198         validate_equiv_mem, equiv_init_varies_p, equiv_init_movable_p,
5199         contains_replace_regs, memref_referenced_p, memref_used_between_p,
5200         no_equiv, recorded_label_ref): Move from local-alloc.c.
5201         (update_equiv_regs): Ditto.  Make it static.
5202         (print_insn_chain, print_insn_chains): Move it from global.c.
5203         (pseudo_for_reload_consideration_p): Ditto.  Remove flag_ira.
5204         (build_insn_chain): Ditto.  Make it static.
5205         (ra_init_live_subregs): Move from ra-conflict.c.  Make it static.
5206         Rename to init_live_subregs.
5207         (gate_ira): Remove flag_ira.
5208
5209         * regclass.c: Rename reginfo.c.  Change file description.
5210         (FORBIDDEN_INC_DEC_CLASSES): Remove.
5211         (reg_class_superclasses, forbidden_inc_dec_class, in_inc_dec): Remove.
5212         (init_reg_sets_1): Remove code for evaluation of
5213         reg_class_superclasses and losing_caller_save_reg_set.
5214         (init_regs): Remove init_reg_autoinc.
5215         (struct costs, costs, init_cost, ok_for_index_p_nonstrict,
5216         ok_for_base_p_nonstrict): Remove.
5217         (regclass_init): Rename to reginfo_init.  Don't initialize init_cost.
5218         (pass_regclass_init): Rename to pass_reginfo_init.  Modify
5219         corresponding entries.
5220         (dump_regclass, record_operand_costs, scan_one_insn,
5221         init_reg_autoinc, regclass, record_reg_classes, copy_cost,
5222         record_address_regs, auto_inc_dec_reg_p): Remove.
5223         (gt-regclass.h): Rename to gt-reginfo.h.
5224
5225         * rtl.h (dump_global_regs, retry_global_alloc,
5226         build_insn_chain, dump_local_alloc, update_equiv_regs): Remove.
5227
5228         * Makefile.in (RA_H): Remove.
5229         (OBJS-common): Remove global.o, local-alloc.o, and ra-conflict.o.
5230         Rename regclass.o to reginfo.o.
5231         (regclass.o): Rename to reginfo.o.  Rename gt-regclass.h to
5232         gt-reginfo.h.
5233         (global.o, local-alloc.o, ra-conflict.o): Remove entries.
5234         (GTFILES): Rename regclass.c to reginfo.c.
5235
5236         * passes.c (init_optimization_passes): Remove pass_local_alloc and
5237         pass_global_alloc.  Rename pass_regclass_init to pass_reginfo_init.
5238
5239         * reload1.c (compute_use_by_pseudos, reload, count_pseudo,
5240         count_spilled_pseudo, find_reg, alter_reg, delete_output_reload):
5241         Remove flag_ira.
5242         (finish_spills): Ditto.  Remove code for !flag_ira.
5243         
5244 2009-01-29  Kenneth Zadeck  <zadeck@naturalbridge.com>
5245
5246         PR middle-end/35854
5247         * doc/invoke.texi (rtl debug options): Complete rewrite.
5248         * auto-inc-dec.c (pass_inc_dec): Rename pass from "auto-inc-dec"
5249         to auto_inc_dec".
5250         * mode-switching.c (pass_mode_switching): Rename pass from
5251         "mode-sw" to "mode_sw".
5252         * except.c (pass_convert_to_eh_ranges): Rename pass from
5253         "eh-ranges" to "eh_ranges".
5254         * lower-subreg.c (pass_lower_subreg): Renamed pass from "subreg"
5255         to "subreg1".
5256                 
5257         
5258 2009-01-29  Andrey Belevantsev  <abel@ispras.ru>
5259             Alexander Monakov  <amonakov@ispras.ru>
5260
5261         PR middle-end/38857
5262         * sel-sched.c (count_occurrences_1): Check that *cur_rtx is a hard
5263         register.
5264         (move_exprs_to_boundary): Change return type and pass through
5265         should_move from move_op.  Relax assert.  Update usage ...
5266         (schedule_expr_on_boundary): ... here.  Use should_move instead of
5267         cant_move.
5268         (move_op_orig_expr_found): Indicate that insn was disconnected from
5269         stream.
5270         (code_motion_process_successors): Do not call after_merge_succs
5271         callback if original expression was not found when traversing any of
5272         the branches.
5273         (code_motion_path_driver): Change return type.  Update prototype.
5274         (move_op): Update comment.  Add a new parameter (should_move).  Update
5275         prototype.  Set *should_move based on indication provided by
5276         move_op_orig_expr_found.
5277
5278 2009-01-28  Pat Haugen  <pthaugen@us.ibm.com>
5279
5280         * doc/invoke.texi (avoid-indexed-addresses): Document new option.
5281         * config/rs6000/rs6000-protos.h (avoiding_indexed_address_p): Declare.
5282         * config/rs6000/rs6000.opt (avoid-indexed-addresses): New option.
5283         * config/rs6000/rs6000.c (rs6000_override_options): Default
5284         avoid-indexed-addresses on for Power6, off for everything else.
5285         (avoiding_indexed_address_p): New function.
5286         (rs6000_legitimize_address): Use it.
5287         (rs6000_legitimate_address): Likewise.
5288         * config/rs6000/rs6000.md (movXX_updateX): Likewise
5289
5290 2009-01-28  Kazu Hirata  <kazu@codesourcery.com>
5291
5292         PR tree-optimization/38997
5293         * tree-loop-distribution.c (generate_memset_zero): Use
5294         POINTER_PLUS_EXPR for a pointer addition.
5295
5296 2009-01-28  Andreas Krebbel  <krebbel1@de.ibm.com>
5297
5298         * config/s390/s390.md (bswap<mode>2): New pattern added.
5299
5300 2009-01-28  Wolfgang Gellerich  <gellerich@de.ibm.com>
5301
5302         * config/s390/s390.md (*tls_load_31): Added type attribute.
5303
5304 2009-01-28  Wolfgang Gellerich  <gellerich@de.ibm.com>
5305
5306         * config/s390/s390.md: Fix a few comments.
5307
5308 2009-01-28  Wolfgang Gellerich  <gellerich@de.ibm.com>
5309
5310         * config/s390/s390.md (*tmsi_reg): Fixed z10prop attribute.
5311         (*tm<mode>_full): Fixed z10prop attribute.
5312         (*tst<mode>_extimm): Fixed z10prop attribute.
5313         (*tst<mode>_cconly_extimm): Fixed z10prop attribute.
5314         (*tstqiCCT_cconly): Fixed z10prop attribute.
5315         (*cmpsi_ccu_zerohi_rlsi): Fixed z10prop attribute.
5316         (*movsi_larl): Fixed z10prop attribute.
5317         (*movsi_zarch): Fixed z10prop attribute.
5318         (*movsi_eas): Fixed z10prop attribute.
5319         (*movhi): Fixed z10prop attribute.
5320         (*movqi): Fixed z10prop attribute.
5321         (*movstrictqi): Fixed z10prop attribute.
5322         (*mov<mode>): Fixed z10prop attribute.
5323         (*movcc): Fixed z10prop attribute.
5324         (*sethighpartdi_64): Fixed z10prop attribute.
5325         (*zero_extendhi<mode>2_z10): Fixed z10prop attribute.
5326         (*negdi2_sign_cc): Fixed z10prop attribute.
5327         (*negdi2_sign): Fixed z10prop attribute.
5328         (*absdi2_sign_cc): Fixed z10prop attribute.
5329         (*absdi2_sign): Fixed z10prop attribute.
5330         (*negabsdi2_sign_cc): Fixed z10prop attribute.
5331         (*negabsdi2_sign): Fixed z10prop attribute.
5332         (*cmp_and_trap_signed_int<mode>): Fixed z10prop attribute.
5333         (*cmp_and_trap_unsigned_int<mode>): Fixed z10prop attribute.
5334         (doloop_si64): Fixed z10prop attribute.
5335         (doloop_si31): Fixed z10prop attribute.
5336         (doloop_long): Fixed z10prop attribute.
5337         (indirect_jump): Fixed z10prop attribute.
5338         (nop): Fixed z10prop attribute.
5339         (main_base_64): Fixed z10prop attribute.
5340         (reload_base_64): Fixed z10prop attribute.
5341
5342 2009-01-28  Jakub Jelinek  <jakub@redhat.com>
5343
5344         PR rtl-optimization/38740
5345         * reorg.c (gate_handle_delay_slots): Avoid dbr scheduling
5346         if !optimize.
5347         * config/mips/mips.c (mips_reorg): Likewise.
5348
5349 2009-01-28  Richard Guenther  <rguenther@suse.de>
5350
5351         PR tree-optimization/38926
5352         * tree-ssa-pre.c (add_to_value): Assert we add only expressions
5353         with the correct value id to a value.
5354         (do_regular_insertion): Use the value number of edoubleprime
5355         for the value number of the expr.
5356
5357         Revert
5358         2008-08-21  Richard Guenther  <rguenther@suse.de>
5359
5360         * tree-ssa-pre.c (insert_into_preds_of_block): Before inserting
5361         a PHI ask VN if it is already available.
5362         * tree-ssa-sccvn.h (vn_phi_lookup): Declare.
5363         * tree-ssa-sccvn.c (vn_phi_lookup): Export.
5364
5365 2009-01-28  Jakub Jelinek  <jakub@redhat.com>
5366
5367         PR middle-end/38934
5368         * tree-vrp.c (extract_range_from_assert): For LE_EXPR and LT_EXPR
5369         set to varying whenever max has TREE_OVERFLOW set, similarly
5370         for GE_EXPR and GT_EXPR and TREE_OVERFLOW min.
5371
5372 2009-01-28  Richard Guenther  <rguenther@suse.de>
5373
5374         PR middle-end/38908
5375         * tree-ssa.c (warn_uninitialized_var): Do not warn for seemingly
5376         uninitialized aggregate uses in call arguments.
5377
5378 2009-01-28  Paolo Bonzini  <bonzini@gnu.org>
5379
5380         PR tree-optimization/38984
5381         * tree-ssa-structalias.c (get_constraints_for_1): Do not use
5382         the nothing_id variable if -fno-delete-null-pointer-checks.
5383
5384 2009-01-28  Uros Bizjak  <ubizjak@gmail.com>
5385
5386         PR target/38988
5387         * config/i386/i386.md (set_rip_rex64): Wrap operand 1 in label_ref.
5388         (set_got_offset_rex64): Ditto.
5389
5390 2009-01-27  H.J. Lu  <hongjiu.lu@intel.com>
5391
5392         PR target/38941
5393         * doc/extend.texi: Improve local variable with asm reg.
5394
5395 2009-01-27  Adam Nemet  <anemet@caviumnetworks.com>
5396
5397         * c.opt (Wpacked-bitfield-compat): Change init value to -1.
5398         * c-opts.c (c_common_post_options): If -W*packed-bitfield-compat
5399         was not supplied then set warn_packed_bitfield_compat to the
5400         default value of 1.
5401         * stor-layout.c (place_field): Check warn_packed_bitfield_compat
5402         against 1.
5403
5404 2009-01-27  Richard Guenther  <rguenther@suse.de>
5405
5406         PR tree-optimization/38503
5407         * cfgexpand.c (expand_gimple_basic_block): Ignore
5408         GIMPLE_CHANGE_DYNAMIC_TYPE during expansion.
5409         * tree-ssa-structalias.c (set_uids_in_ptset): Do not prune
5410         variables that cannot have TBAA applied.
5411         (compute_points_to_sets): Do not remove GIMPLE_CHANGE_DYNAMIC_TYPE
5412         statements.
5413
5414 2009-01-27  Uros Bizjak  <ubizjak@gmail.com>
5415
5416         PR middle-end/38969
5417         * calls.c (initialize_argument_information): Do not wrap complex
5418         arguments in SAVE_EXPR.
5419
5420 2009-01-26  Andreas Tobler  <a.tobler@schweiz.org>
5421
5422         * config/t-vxworks (LIBGCC2_INCLUDES): Fix typo.
5423         (INSTALL_LIBGCC): Revert typo commit.
5424
5425 2009-01-26  Richard Guenther  <rguenther@suse.de>
5426
5427         PR tree-optimization/38745
5428         * tree-ssa-alias.c (update_alias_info_1): Exclude RESULT_DECL
5429         from special handling.
5430
5431 2009-01-26  Richard Guenther  <rguenther@suse.de>
5432
5433         PR tree-optimization/38745
5434         * tree-ssa.c (execute_update_addresses_taken): Do not include
5435         variables that cannot possibly be a register in not_reg_needs.
5436         Do not clear TREE_ADDRESSABLE on vars that may not become
5437         registers.
5438         * tree-ssa.c (update_alias_info_1): Include those in the set
5439         of addressable vars.
5440
5441 2009-01-26  Richard Guenther  <rguenther@suse.de>
5442
5443         PR middle-end/38851
5444         * Makefile.in (tree-ssa-dse.o): Add langhooks.h.
5445         * tree-ssa-dse.c: Include langhooks.h
5446         (execute_simple_dse): Remove stores with zero size.
5447
5448 2009-01-24  Jakub Jelinek  <jakub@redhat.com>
5449
5450         PR c/38957
5451         * c-typeck.c (c_finish_return): Handle POINTER_PLUS_EXPR the same way
5452         as PLUS_EXPR.
5453
5454 2009-01-24  Julian Brown  <julian@codesourcery.com>
5455
5456         * config/arm/t-linux-eabi (LIB2FUNCS_STATIC_EXTRA): Add
5457         config/arm/linux-atomic.c.
5458         * config/arm/linux-atomic.c: New.
5459
5460 2009-01-24  Eric Botcazou  <ebotcazou@adacore.com>
5461
5462         * config/sparc/linux.h (DBX_REGISTER_NUMBER): Delete.
5463         * config/sparc/linux64.h (DBX_REGISTER_NUMBER): Likewise.
5464         * config/sparc/sysv4.h (DBX_REGISTER_NUMBER): Likewise.
5465
5466 2009-01-24  H.J. Lu  <hongjiu.lu@intel.com>
5467
5468         PR c/38938
5469         * c-opts.c (c_common_handle_option): Update warn_pointer_sign
5470         properly.
5471
5472 2009-01-24  Sebastian Pop  <sebastian.pop@amd.com>
5473
5474         PR tree-optimization/38953
5475         * graphite.c (graphite_verify): Add a call to verify_loop_closed_ssa.
5476         (scop_adjust_phis_for_liveouts): Initialize false_i to zero.
5477         (gloog): Split the exit of the scop when the scop exit is a loop exit.
5478         (graphite_transform_loops): Only call cleanup_tree_cfg if gloog
5479         changed the CFG.
5480
5481 2009-01-24  Paul Brook  <paul@codesourcery.com>
5482
5483         * config/arm/neon.md (neon_type): Move to arm.md.
5484         (neon_mov<VSTRUCT>): Add neon_type attribute.
5485         * config/arm/arm.md (neon_type): Move to here.
5486         (conds): Add "unconditioal" and use as default for NEON insns.
5487
5488 2009-01-24  Ben Elliston  <bje@au.ibm.com>
5489
5490         * bitmap.h (BITMAP_FREE): Eliminate `implicit conversion from
5491         void *' warning from -Wc++-compat.
5492         * Makefile.in (dominance.o-warn): Remove.
5493
5494 2009-01-23  Paolo Bonzini  <bonzini@gnu.org>
5495
5496         PR tree-optimization/38932
5497         * fold-const.c (fold_unary_ignore_overflow): New.
5498         * tree.h (fold_unary_ignore_overflow): Declare.
5499         * tree-ssa-ccp.c (ccp_fold): Use fold_unary_ignore_overflow.
5500         * tree-ssa-sccvn.c (visit_reference_op_load,
5501         simplify_unary_expression): Likewise.
5502
5503 2009-01-22  Adam Nemet  <anemet@caviumnetworks.com>
5504
5505         * c-decl.c (finish_struct): Move code to set DECL_PACKED after
5506         DECL_BIT_FIELD is alreay known.  Also inherit packed for bitfields
5507         regardless of their type.
5508         * c-common.c (handle_packed_attribute): Don't ignore packed on
5509         bitfields.
5510         * c.opt (Wpacked-bitfield-compat): New warning option.
5511         * stor-layout.c (place_field): Warn if offset of a field changed.
5512         * doc/extend.texi (packed): Mention the ABI change.
5513         * doc/invoke.texi (-Wpacked-bitfield-compat): Document.
5514         (Warning Options): Add it to the list.
5515
5516 2009-01-22  H.J. Lu  <hongjiu.lu@intel.com>
5517
5518         * c-opts.c (c_common_post_options): Fix a typo in comments.
5519
5520 2009-01-22  Steve Ellcey  <sje@cup.hp.com>
5521
5522         PR middle-end/38615
5523         * gimplify.c (gimplify_init_constructor): Fix promotion of const
5524         variables to static.
5525         * doc/invoke.texi (-fmerge-all-constants): Update description.
5526
5527 2009-01-22  Uros Bizjak  <ubizjak@gmail.com>
5528
5529         PR target/38931
5530         * config/i386/i386.md (*movsi_1): Use type "mmx" for alternative 2.
5531         (*movdi_1_rex64): Use type "mmx" for alternative 5.
5532
5533 2009-01-22  Richard Earnshaw  <rearnsha@arm.com>
5534
5535         * arm.h (DATA_ALIGNMENT): Align structures, unions and arrays to
5536         a word boundary.
5537         (LOCAL_ALIGNMENT): Similarly.
5538
5539 2009-01-22  Mark Shinwell  <shinwell@codesourcery.com>
5540             Joseph Myers  <joseph@codesourcery.com>
5541
5542         * config/arm/arm.c (all_architectures): Add iWMMXt2 entry.
5543         * config/arm/arm-cores.def: New ARM_CORE entry for iWMMXt2.
5544         * config/arm/arm-tune.md: Regenerate.
5545         * doc/invoke.texi (ARM Options): Document -mcpu=iwmmxt2 and
5546         -march=iwmmxt2.
5547
5548 2009-01-22  Mark Shinwell  <shinwell@codesourcery.com>
5549
5550         * config/arm/bpabi.h (SUBTARGET_EXTRA_ASM_SPEC): Bump EABI
5551         version number to five.
5552
5553 2009-01-22  Dodji Seketeli  <dodji@redhat.com>
5554
5555         PR c++/38930
5556         * c-decl.c (clone_underlying_type): Revert PR c++/26693 changes.
5557         * c-common.c (set_underlying_type): Likewise.
5558         (is_typedef_decl ): Likewise
5559         * tree.h: Likewise
5560         (set_underlying_type): Likewise.
5561         (is_typedef_type): Likewise.
5562
5563 2009-01-21  Vladimir Makarov  <vmakarov@redhat.com>
5564
5565         PR middle-end/38587
5566         * ira-color.c (coalesce_spill_slots): Don't coalesce allocnos
5567         crossing setjmps.
5568
5569 2009-01-21  Dave Korn  <dave.korn.cygwin@gmail.com>
5570
5571         PR bootstrap/37660
5572         * config/i386/cygwin.h (SHARED_LIBGCC_SPEC):  New helper macro.
5573         (LIBGCC_SPEC):  Don't define.
5574         (REAL_LIBGCC_SPEC):  Define instead, using SHARED_LIBGCC_SPEC.
5575
5576 2009-01-21  Uros Bizjak  <ubizjak@gmail.com>
5577
5578         PR rtl-optimization/38879
5579         * alias.c (base_alias_check): Unaligned access via AND address can
5580         alias all surrounding object types except those with sizes equal
5581         or wider than the size of unaligned access.
5582
5583 2009-01-21  Dodji Seketeli  <dodji@redhat.com>
5584
5585         PR c++/26693
5586         * c-decl.c (clone_underlying_type): Move this ...
5587         * c-common.c (set_underlying_type): ... here.
5588         Also, make sure the function properly sets TYPE_STUB_DECL() on
5589         the newly created typedef variant type.
5590         (is_typedef_decl ): New entry point.
5591         * tree.h: Added a new member member_types_needing_access_check to
5592         struct tree_decl_non_common.
5593         (set_underlying_type): New entry point.
5594         (is_typedef_type): Likewise.
5595
5596 2009-01-21  Bingfeng Mei  <bmei@broadcom.com>
5597
5598         * alias.c (walk_mems_1, walk_mems_2, insn_alias_sets_conflict_p):
5599         Check whether two instructions have memory references that
5600         belong to conflicting alias sets.  walk_mems_1 and walk_mems_2
5601         are helper functions for traversing.
5602         * alias.h (insn_alias_sets_confilict_p): New prototypes.
5603         * ddg.c (add_inter_loop_mem_dep): Call insn_alias_sets_conflict_p
5604         not to draw dependency edge for instructions with non-conflicting
5605         alias sets.
5606
5607 2009-01-20  Joseph Myers  <joseph@codesourcery.com>
5608
5609         PR other/38758
5610         * longlong.h: Update copyright years.  Use soft-fp license notice.
5611         Sync __clz_tab declaration with glibc.
5612
5613 2009-01-20  Steve Ellcey  <sje@cup.hp.com>
5614
5615         PR target/30687
5616         * doc/extend.texi (syscall_linkage): New.
5617         (version_id): Modify.
5618
5619 2009-01-20  Andrew Pinski  <andrew_pinski@playstation.sony.com>
5620             Richard Guenther  <rguenther@suse.de>
5621
5622         PR tree-optimization/38747
5623         PR tree-optimization/38748
5624         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Disable the VCE
5625         conversion if the base address is an indirect reference and the
5626         aliasing sets could cause issues.
5627
5628 2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>
5629
5630         * common.opt (fgraphite, fgraphite-identity): Add comment for 
5631         explaining why these options are not documented.
5632
5633 2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>
5634
5635         * graphite.c (stmt_simple_for_scop_p): Also handle cases when
5636         gimple_call_lhs is NULL.
5637
5638 2009-01-20  Paolo Bonzini  <bonzini@gnu.org>
5639
5640         PR target/38868
5641         * emit-rtl.c (adjust_address_1): Make sure memref is never
5642         overwritten.
5643
5644 2009-01-20  Ben Elliston  <bje@au.ibm.com>
5645
5646         * libgcov.c (__gcov_execl, __gcov_execlp, __gcov_execle): Remove
5647         const qualifier from arg parameter. Remove unnecessary cast to char *.
5648         * gcov-io.h (__gcov_execl, __gcov_execlp, __gcov_execle): Remove
5649         const qualifier from arg 2.
5650
5651 2009-01-19  Iain Sandoe  <iain.sandoe@sandoe-acoustics.co.uk>
5652
5653         * config/darwin.h: Add static-libgfortran to LINK_SPEC.
5654
5655 2009-01-19  Vladimir Makarov  <vmakarov@redhat.com>
5656
5657         PR c/38869
5658         * rtl.h (reinit_regs): New prototype.
5659         * regclass.c: Include ira.h.
5660         (reinit_regs): New.
5661         * Makefile.in (regclass.o): Add ira.h.
5662         * config/i386/i386.c (ix86_maybe_switch_abi): Use reinit_regs.
5663
5664 2009-01-18  H.J. Lu  <hongjiu.lu@intel.com>
5665
5666         PR target/38736
5667         * c-common.c (handle_aligned_attribute): Use
5668         ATTRIBUTE_ALIGNED_VALUE instead of BIGGEST_ALIGNMENT for
5669         default alignment value.
5670
5671         * c-cppbuiltin.c (c_cpp_builtins): Define __BIGGEST_ALIGNMENT__.
5672
5673         * defaults.h (ATTRIBUTE_ALIGNED_VALUE): New.
5674         * config/i386/i386.h (ATTRIBUTE_ALIGNED_VALUE): Likewise.
5675
5676         * doc/extend.texi: Update __attribute__ ((aligned)).  Document
5677         __BIGGEST_ALIGNMENT__.
5678
5679         * doc/tm.texi: Document ATTRIBUTE_ALIGNED_VALUE.
5680
5681 2009-01-18  Richard Guenther  <rguenther@suse.de>
5682
5683         PR tree-optimization/38819
5684         * tree-flow.h (operation_could_trap_helper_p): Declare.
5685         * tree-eh.c (operation_could_trap_helper_p): Export.
5686         * tree-ssa-sccvn.h (vn_nary_may_trap): Declare.
5687         * tree-ssa-sccvn.c (vn_nary_may_trap): New function.
5688         * tree-ssa-pre.c (insert_into_preds_of_block): Check if we
5689         are about to insert a possibly trapping instruction and fail
5690         in this case.
5691
5692 2009-01-18  Andreas Schwab  <schwab@suse.de>
5693
5694         * doc/install.texi (Configuration): Remove obsolete paragraph
5695         about use of --with-gnu-ld with --with-gnu-as.
5696
5697 2009-01-18  Kazu Hirata  <kazu@codesourcery.com>
5698
5699         * doc/extend.texi, doc/gimple.texi, doc/invoke.texi,
5700         doc/md.texi, doc/sourcebuild.texi, doc/tm.texi: Fix typos.
5701         Follow spelling conventions.
5702
5703 2009-01-18  Ben Elliston  <bje@au.ibm.com>
5704
5705         * bitmap.c (bitmap_obstack_alloc_stat): Adjust cast to eliminate
5706         C++ warning about implicit conversion from void * to struct
5707         bitmap_head_def *.
5708         (bitmap_obstack_free): Likewise for bitmap_element *.
5709         * Makefile.in (bitmap.o-warn): Remove.
5710
5711 2009-01-17  Dave Korn  <dave.korn.cygwin@gmail.com>
5712
5713         * Makefile.in (BACKENDLIBS):  Reorder to match dependencies.
5714
5715 2009-01-17  Sebastian Pop  <sebastian.pop@amd.com>
5716             Tobias Grosser  <tobi.grosser@amd.com>
5717
5718         * graphite.c (graphite_trans_scop_block): Do not block single
5719         nested loops.
5720
5721 2009-01-16  Alexandre Oliva  <aoliva@redhat.com>
5722
5723         * ebitmap.h (ebitmap_iter_init): Initialize all fields.
5724         * ipa-struct-reorg.c (gen_struct_type): Replace known-true
5725         test with assertion.
5726
5727 2009-01-16  Richard Guenther  <rguenther@suse.de>
5728
5729         PR tree-optimization/38835
5730         PR middle-end/36227
5731         * fold-const.c (fold_binary): Remove PTR + INT -> (INT)(PTR p+ INT)
5732         and INT + PTR -> (INT)(PTR p+ INT) folding.
5733         * tree-ssa-address.c (create_mem_ref): Properly use POINTER_PLUS_EXPR.
5734
5735 2009-01-16  Adam Nemet  <anemet@caviumnetworks.com>
5736
5737         PR target/38554
5738         * expmed.c (expand_shift): With SHIFT_COUNT_TRUNCATED, don't lift
5739         the subreg from a lowpart subreg if it is also casting the value.
5740
5741 2009-01-16  Sebastian Pop  <sebastian.pop@amd.com>
5742             Tobias Grosser  <tobi.grosser@amd.com>
5743
5744         * graphite.c (compare_prefix_loops): New.
5745         (build_scop_canonical_schedules): Rewritten.
5746         (graphite_transform_loops): Move build_scop_canonical_schedules
5747         after build_scop_iteration_domain.
5748
5749 2009-01-16  Sebastian Pop  <sebastian.pop@amd.com>
5750             Tobias Grosser  <tobi.grosser@amd.com>
5751
5752         * graphite.c (add_conditions_to_domain): Add the loops to 
5753         the dimension of the iteration domain.  Do copy the domain
5754         only when it exists.
5755         (build_scop_conditions_1): Do not call add_conditions_to_domain.
5756         (add_conditions_to_constraints): New.
5757         (can_generate_code_stmt, can_generate_code): Removed.
5758         (gloog): Do not call can_generate_code.
5759         (graphite_transform_loops): Call add_conditions_to_constraints
5760         after building the iteration domain.
5761
5762 2009-01-16  Jakub Jelinek  <jakub@redhat.com>
5763
5764         PR tree-optimization/38789
5765         * tree-ssa-threadedge.c
5766         (record_temporary_equivalences_from_stmts_at_dest): Ignore calls to
5767         __builtin_constant_p.
5768
5769 2009-01-16  Kenneth Zadeck  <zadeck@naturalbridge.com>
5770
5771         * dce.c (delete_unmarked_insns): Reversed the order that insns are
5772         examined before deleting them.
5773         
5774 2009-01-16  Richard Earnshaw  <rearnsha@arm.com>
5775
5776         * function.c (aggregate_value_p): Correctly extract the function
5777         type from CALL_EXPR_FN lookup.
5778
5779 2009-01-16  Hariharan Sandanagobalane  <hariharan@picochip.com>
5780
5781         * config/picochip/picochip.c (picochip_override_options): Revert
5782         CFI asm flag disable commited previously.
5783
5784 2009-01-15  Sebastian Pop  <sebastian.pop@amd.com>
5785             Tobias Grosser  <tobi.grosser@amd.com>
5786             Jan Sjodin  <jan.sjodin@amd.com>
5787
5788         * graphite.c (scan_tree_for_params): On substractions negate
5789         all the coefficients of the term.
5790         (clast_to_gcc_expression_red): New.  Handle reduction expressions
5791         of more than two operands.
5792         (clast_to_gcc_expression): Call clast_to_gcc_expression_red.
5793         (get_vdef_before_scop): Handle also the case of default definitions.
5794
5795 2009-01-15  Richard Sandiford  <rdsandiford@googlemail.com>
5796
5797         * caller-save.c (add_used_regs_1, add_used_regs): New functions.
5798         (insert_one_insn): Use them instead of REG_DEAD and REG_INC notes.
5799         Also use them when walking CALL_INSN_FUNCTION_USAGE.
5800
5801 2009-01-15  H.J. Lu  <hongjiu.lu@intel.com>
5802             Joey Ye  <joey.ye@intel.com>
5803
5804         PR middle-end/37843
5805         * cfgexpand.c (expand_stack_alignment): Don't update stack
5806         boundary nor check incoming stack boundary here.
5807         (gimple_expand_cfg): Update stack boundary and check incoming
5808         stack boundary here.
5809
5810 2009-01-15  Kenneth Zadeck  <zadeck@naturalbridge.com>
5811
5812         * dce.c (find_call_stack_args, delete_unmarked_insns): Fixed comments.
5813         
5814 2009-01-14  Jakub Jelinek  <jakub@redhat.com>
5815
5816         PR rtl-optimization/38245
5817         * calls.c (expand_call): Add stack arguments to
5818         CALL_INSN_FUNCTION_USAGE even for pure calls (when
5819         ACCUMULATE_OUTGOING_ARGS) and even for args partially passed
5820         in regs and partially in memory or BLKmode arguments.
5821         (emit_library_call_value_1): Add stack arguments to
5822         CALL_INSN_FUNCTION_USAGE even for pure calls (when
5823         ACCUMULATE_OUTGOING_ARGS).
5824         * dce.c: Include tm_p.h.
5825         (find_call_stack_args): New function.
5826         (deletable_insn_p): Call it for CALL_P insns.  Add ARG_STORES
5827         argument.
5828         (mark_insn): Call find_call_stack_args for CALL_Ps.
5829         (prescan_insns_for_dce): Walk insns backwards in bb rather than
5830         forwards.  Allocate and free arg_stores bitmap if needed, pass it
5831         down to deletable_insn_p, don't mark stores set in arg_stores
5832         bitmap, clear the bitmap at the beginning of each bb.
5833         * Makefile.in (dce.o): Depend on $(TM_P_H).
5834
5835 2009-01-14  Michael Meissner  <gnu@the-meissners.org>
5836
5837         PR target/22599
5838         * config/i386/i386.c (print_operand): Add tests for 'D', 'C', 'F', 'f'
5839         to make sure the insn is a conditional test (bug 22599).  Reformat a
5840         few long lines.
5841
5842 2009-01-14  Sebastian Pop  <sebastian.pop@amd.com>
5843
5844         PR middle-end/38431
5845         * graphite.c (get_vdef_before_scop, scop_adjust_vphi): New.
5846         (scop_adjust_phis_for_liveouts): Call scop_adjust_vphi.
5847         (gloog): Do not call cleanup_tree_cfg.
5848         (graphite_transform_loops): Call cleanup_tree_cfg after all 
5849         scops have been code generated.
5850
5851 2009-01-14  Basile Starynkevitch  <basile@starynkevitch.net>
5852         * doc/gty.texi (Invoking the garbage collector): Added new node
5853         and section documenting ggc_collect.
5854
5855 2009-01-14  Richard Guenther  <rguenther@suse.de>
5856
5857         PR tree-optimization/38826
5858         PR middle-end/38477
5859         * tree-ssa-structalias.c (emit_alias_warning): Emit the pointer
5860         initialization notes only if we actually emitted a warning.
5861         (intra_create_variable_infos): Add constraints for a result decl
5862         that is passed by hidden reference.
5863         (build_pred_graph): Mark all related variables non-direct on
5864         address-taking.
5865
5866 2009-01-14  Nick Clifton  <nickc@redhat.com>
5867
5868         * ira-conflicts.c: Include addresses.h for the definition of
5869         base_reg_class.
5870         (ira_build_conflicts): Use base_reg_class instead of BASE_REG_CLASS.
5871         * Makefile.in: Add a dependency of ira-conflicts.o on addresses.h.
5872
5873 2009-01-13  Vladimir Makarov  <vmakarov@redhat.com>
5874
5875         PR target/38811
5876         * Makefile.in (ira-lives.o): Add except.h.
5877
5878         * ira-lives.c: Include except.h.
5879         (process_bb_node_lives): Process can_throw_internal.
5880
5881 2009-01-13  Jakub Jelinek  <jakub@redhat.com>
5882
5883         PR rtl-optimization/38774
5884         * combine.c (simplify_set): When undoing cc_use change, don't do
5885         PUT_CODE on the newly created comparison, but instead put back the
5886         old comparison.
5887
5888 2009-01-13  Joseph Myers  <joseph@codesourcery.com>
5889
5890         * doc/invoke.texi (ARM Options): Update lists of -mcpu and -march
5891         values.  Remove duplicate arm8 entry.
5892
5893 2009-01-13  Sebastian Pop  <sebastian.pop@amd.com>
5894
5895         PR tree-optimization/38786
5896         * graphite.c (expand_scalar_variables_ssa_name): New, outlined from
5897         the SSA_NAME case of expand_scalar_variables_expr.
5898         Set the type of an expression to the type of its assign statement.
5899         (expand_scalar_variables_expr): Also gather the scalar computation
5900         used to index the memory access.  Do not pass loop_p.
5901         Fix comment.  Stop recursion on tcc_constant or tcc_declaration.
5902         (expand_scalar_variables_stmt): Pass to expand_scalar_variables_expr
5903         the gimple_stmt_iterator where it inserts new code.
5904         Do not pass loop_p.
5905         (copy_bb_and_scalar_dependences): Do not pass loop_p.
5906         (translate_clast): Update call to copy_bb_and_scalar_dependences.
5907
5908 2009-01-13  Sebastian Pop  <sebastian.pop@amd.com>
5909
5910         * graphite.h (debug_value): Removed.
5911         * graphite.c (debug_value): Removed.
5912
5913 2009-01-13  Richard Earnshaw  <rearnsha@arm.com>
5914
5915         * config/arm/arm.c (output_move_double): Don't synthesize thumb-2
5916         ldrd/strd with two 32-bit instructions.
5917
5918 2009-01-13  Richard Earnshaw  <rearnsha@arm.com>
5919
5920         * config/arm/arm.c (struct processors): Pass for speed down into
5921         cost helper functions.
5922         (const_ok_for_op): Handle COMPARE and inequality nodes.
5923         (arm_rtx_costs_1): Rewrite.
5924         (arm_size_rtx_costs): Update prototype.
5925         (arm_rtx_costs): Pass speed down to helper functions.
5926         (arm_slowmul_rtx_costs): Rework cost calculations.
5927         (arm_fastmul_rtx_costs, arm_xscale_rtx_costs): Likewise.
5928         (arm_9e_rtx_costs): Likewise.
5929
5930 2009-01-13  Uros Bizjak  <ubizjak@gmail.com>
5931
5932         * config/alpha/alpha.c (alpha_legitimate_address_p): Explicit
5933         relocations of local symbols wider than UNITS_PER_WORD are not valid.
5934         (alpha_legitimize_address): Do not split local symbols wider than
5935         UNITS_PER_WORD into HIGH/LO_SUM parts.
5936
5937 2009-01-13  Danny Smith  <dannysmith@users.sourceforge.net>
5938
5939         PR bootstrap/38580
5940         * gcc.c (process_command): Replace call to execvp with calls
5941         to pex_one and exit.
5942
5943 2009-01-03  Anatoly Sokolov  <aesok@post.ru>
5944
5945         PR target/29141
5946         * config/avr/t-avr (LIB1ASMFUNCS): Add _tablejump_elpm.
5947         * config/avr/libgcc.S (__do_global_ctors, __do_global_dtors): Add
5948         variant for devices with 3-byte PC.
5949         (__tablejump_elpm__): New.
5950
5951 2009-01-12  Jakub Jelinek  <jakub@redhat.com>
5952
5953         PR c/32041
5954         * c-parser.c (c_parser_postfix_expression): Allow `->' in
5955         offsetof member-designator, handle it as `[0].'.
5956
5957 2009-01-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
5958
5959         * pa.c (pa_asm_output_mi_thunk): Use pc-relative branch to thunk
5960         function when not using named sections on targets with named sections
5961         if branch distance is less than 262132.
5962
5963 2009-01-12  Richard Earnshaw  <rearnsha@arm.com>
5964
5965         * combine.c (combine_instructions):  Recompute
5966         optimize_this_for_speed_p  for each BB in the main combine loop.
5967
5968 2009-01-12  Tomas Bily  <tbily@suse.cz>
5969
5970         PR middlend/38385
5971         * tree-loop-distribution.c (prop_phis): New function.
5972         (generate_builtin): Call prop_phis.
5973         * testsuite/gcc.dg/tree-ssa/pr38385.c: New file.
5974
5975 2009-01-12  Jakub Jelinek  <jakub@redhat.com>
5976
5977         PR tree-optimization/38807
5978         * tree-ssa-reassoc.c (remove_visited_stmt_chain): Don't look at
5979         gimple_visited_p unless stmt is GIMPLE_ASSIGN.
5980
5981 2009-01-11  Adam Nemet  <anemet@caviumnetworks.com>
5982
5983         * expmed.c (store_bit_field_1): Properly truncate the paradoxical
5984         subreg of op0 to the original op0.
5985
5986 2009-01-11  Laurent GUERBY  <laurent@guerby.net>
5987
5988         * doc/sourcebuild.texi (Source Tree): Move up intl and fixinc.
5989         
5990 2009-01-11  Markus Schoepflin  <markus.schoepflin@comsoft.de>
5991
5992         PR debug/7055
5993         * gcc/mips-tfile.c (parse_def): Fix parsing of def strings
5994         starting with digits.
5995
5996 2009-01-10  Jakub Jelinek  <jakub@redhat.com>
5997
5998         PR target/38695
5999         * config/arm/arm.c (arm_is_long_call_p): Don't call
6000         arm_function_in_section_p if decl isn't a FUNCTION_DECL.
6001
6002 2009-01-09  Steven Bosscher  <steven@gcc.gnu.org>
6003
6004         * regrename.c (regrename_optimize): Fix dumping.
6005         (find_oldest_value_reg): Preserve REG_POINTER.
6006         (copy_hardreg_forward_1): Likewise.
6007
6008 2009-01-09  Diego Novillo  <dnovillo@google.com>
6009
6010         * gimple.h (struct gimple_statement_base) <uid>: Document
6011         the restrictions on its use.
6012         (gimple_uid): Tidy.
6013         (gimple_set_uid): Tidy.
6014
6015 2009-01-09  Jakub Jelinek  <jakub@redhat.com>
6016
6017         * config/i386/i386.c (ix86_expand_movmem, ix86_expand_setmem): Add
6018         zero guard even if align_bytes != 0 and count is smaller than
6019         size_needed.
6020
6021 2009-01-09  Vladimir Makarov  <vmakarov@redhat.com>
6022
6023         PR rtl-optimization/38495
6024         * ira-emit.c (print_move_list, ira_debug_move_list): New functions.
6025         (add_range_and_copies_from_move_list): Print all added ranges.
6026         Add ranges to memory optimized destination.
6027
6028 2009-01-09  Jakub Jelinek  <jakub@redhat.com>
6029
6030         PR target/38686
6031         PR target/38708
6032         * config/i386/i386.c (override_options): Reject
6033         -mstringop-strategy=rep_8byte with -m32.
6034         (ix86_expand_movmem): For size_needed == 1 set epilogue_size_needed
6035         to 1.  Do count comparison against epilogue_size_needed at compile
6036         time even when count_exp was constant forced into register.  For
6037         size_needed don't jump to epilogue, instead just avoid aligning
6038         and invoke the body algorithm.  If need_zero_guard, add zero guard
6039         even if count is non-zero, but smaller than size_needed + number of
6040         bytes that could be stored for alignment.
6041         (ix86_expand_setmem): For size_needed == 1 set epilogue_size_needed
6042         to 1.  If need_zero_guard, add zero guard even if count is non-zero,
6043         but smaller than size_needed + number of bytes that could be stored
6044         for alignment.  Compare size_needed with epilogue_size_needed instead
6045         of desired_align - align, don't adjust size_needed, pass
6046         epilogue_size_needed to the epilogue expanders.
6047
6048         PR c/35742
6049         * c-pretty-print.c (pp_c_expression): Handle GOTO_EXPR like BIND_EXPR.
6050
6051 2009-01-09  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6052
6053         * pa.c (last_address): Change to unsigned.
6054         (update_total_code_bytes): Change argument to unsigned.  Don't
6055         check if insn addresses are set.
6056         (pa_output_function_epilogue): Set last_address to UINT_MAX if insn
6057         addresses are not set.
6058         (pa_asm_output_mi_thunk): Handle wrap when updating last_address.
6059
6060 2009-01-09  Nick Clifton  <nickc@redhat.com>
6061
6062         * config/sh/symbian.c: Replace uses of DECL_INLINE with
6063         DECL_DECLARED_INLINE_P.
6064
6065 2009-01-09  Jakub Jelinek  <jakub@redhat.com>
6066
6067         PR middle-end/38347
6068         * dojump.c (do_jump_by_parts_zero_rtx): Use mode instead of
6069         GET_MODE (op0) in operand_subword_force calls.
6070
6071         PR middle-end/38771
6072         * fold-const.c (fold_unary): For COMPOUND_EXPR and COND_EXPR,
6073         fold_convert arg0 operands to TREE_TYPE (op0) first.
6074
6075 2009-01-08  Vladimir Makarov  <vmakarov@redhat.com>
6076
6077         * params.def (ira-max-conflict-table-size): Decrease default value
6078         to 1000.
6079
6080 2009-01-08  Jakub Jelinek  <jakub@redhat.com>
6081
6082         PR tree-optimization/37031
6083         * lambda-code.c (lambda_collect_parameters): Call pointer_set_destroy
6084         on parameter_set.
6085         (build_access_matrix): Reserve correct size for AM_MATRIX vector,
6086         allocate it using gc instead of heap, use VEC_quick_push instead of
6087         VEC_safe_push.
6088         * graphite.c (build_access_matrix): Allocate AM_MATRIX vector using gc
6089         instead of heap, use VEC_quick_push instead of VEC_safe_push.
6090         * tree-data-ref.h (struct access_matrix): Change matrix to gc
6091         allocated vector from heap allocated.
6092         * lambda.h: Add DEF_VEC_ALLOC_P for gc allocated lambda_vector.
6093         * tree-loop-linear.c (linear_transform_loops): Allocate nest
6094         vector only after perfect_loop_nest_depth call.
6095
6096 2009-01-08  Sebastian Pop  <sebastian.pop@amd.com>
6097             Jan Sjodin  <jan.sjodin@amd.com>
6098
6099         PR tree-optimization/38559
6100         * graphite.c (debug_value, copy_constraint,
6101         swap_constraint_variables, scale_constraint_variable, ): New.
6102         (get_lower_bound, get_upper_bound): Removed.
6103         (graphite_trans_bb_strip_mine): Clean up this code that works
6104         only for constant number of iterations.  Fully copy upper and
6105         lower bound constraints, not only the constant part of them.
6106         * graphite.h (debug_value): Declared.
6107
6108 2009-01-08  Ira Rosen  <irar@il.ibm.com>
6109
6110         PR tree-optimization/37194
6111         * tree-vect-transform.c (vect_estimate_min_profitable_iters):
6112         Don't add the cost of cost model guard in prologue to scalar 
6113         outside cost in case of known number of iterations.
6114
6115 2009-01-07  Nathan Froyd  <froydnj@codesourcery.com>
6116             Alan Modra  <amodra@bigpond.net.au>
6117
6118         * config/rs6000/rs6000.c (rs6000_legitimize_address): Check for
6119         non-word-aligned REG+CONST addressing.
6120
6121 2009-01-07  Uros Bizjak  <ubizjak@gmail.com>
6122
6123         PR target/38706
6124         * config/alpha/alpha.c (alpha_end_function): For TARGET_ABI_OSF, call
6125         free_after_compilation when outputting a thunk.
6126         (alpha_output_mi_thunk_osf): Assert that we are processing a thunk.
6127         Do not call free_after_compilation here.
6128
6129 2009-01-07  Uros Bizjak  <ubizjak@gmail.com>
6130
6131         * config/i386/i386.c (ix86_target_string): Use ARRAY_SIZE.
6132         (ix86_valid_target_attribute_inner_p): Ditto.
6133
6134 2009-01-07  Jan Sjodin  <jan.sjodin@amd.com>
6135
6136         PR tree-optimization/38492
6137         PR tree-optimization/38498
6138         * tree-check.c (operator_is_linear, scev_is_linear_expression): New.
6139         * tree-chrec.h (scev_is_linear_expression): Declared.
6140         * graphite.c (graphite_cannot_represent_loop_niter): New.
6141         (scopdet_basic_block_info): Call graphite_cannot_represent_loop_niter.
6142         (graphite_loop_normal_form): Use gcc_assert.
6143         (scan_tree_for_params): Use CASE_CONVERT.
6144         (phi_node_is_iv, bb_contains_non_iv_scalar_phi_nodes): New.
6145         (build_scop_conditions_1): Call bb_contains_non_iv_scalar_phi_nodes.
6146         Use gcc_assert.  Discard scops that contain unhandled cases.
6147         (build_scop_conditions): Return a boolean status for unhandled cases.
6148         (strip_mine_profitable_p): Print the loop number, not its depth.
6149         (is_interchange_valid): Pass the depth of the loop nest, don't
6150         recompute it wrongly.
6151         (graphite_trans_bb_block): Same.
6152         (graphite_trans_bb_block): Print tentative of loop blocking.
6153         (graphite_trans_scop_block): Do not print that the loop has been
6154         blocked.
6155         (graphite_transform_loops): Do not handle scops that contain condition
6156         scalar phi nodes.
6157
6158 2009-01-07  H.J. Lu  <hongjiu.lu@intel.com>
6159
6160         AVX Programming Reference (December, 2008)
6161         * config/i386/avxintrin.h (_mm256_stream_si256): New.
6162         (_mm256_stream_pd): Likewise.
6163         (_mm256_stream_ps): Likewise.
6164
6165         * config/i386/i386.c (ix86_builtins): Add IX86_BUILTIN_MOVNTDQ256,
6166         IX86_BUILTIN_MOVNTPD256 and IX86_BUILTIN_MOVNTPS256.
6167         (ix86_special_builtin_type): Add VOID_FTYPE_PV4DI_V4DI.
6168         (bdesc_special_args): Add __builtin_ia32_movntdq256,
6169         __builtin_ia32_movntpd256 and __builtin_ia32_movntps256.
6170         (ix86_init_mmx_sse_builtins): Handle VOID_FTYPE_PV4DI_V4DI.
6171         (ix86_expand_special_args_builtin): Likewise.
6172
6173         * config/i386/sse.md (AVXMODEDI): New.
6174         (avx_movnt<mode>): Likewise.
6175         (avx_movnt<mode>): Likewise.
6176         (<sse>_movnt<mode>): Remove AVX support.
6177         (sse2_movntv2di): Likewise.
6178
6179 2009-01-07  Richard Guenther  <rguenther@suse.de>
6180
6181         PR middle-end/38751
6182         * fold-const.c (extract_muldiv): Remove obsolete comment.
6183         (fold_plusminus_mult_expr): Undo MINUS_EXPR
6184         to PLUS_EXPR canonicalization for the canonicalization.
6185
6186 2009-01-07  Gerald Pfeifer  <gerald@pfeifer.com>
6187
6188         * doc/install.texi (alpha*-dec-osf*): Remove note on 32-bit
6189         hosted cross-compilers generating less efficient code.
6190
6191 2009-01-06  Richard Sandiford  <rdsandiford@googlemail.com>
6192
6193         * function.h (rtl_data): Add a dbr_scheduled_p field.
6194         * reorg.c (dbr_schedule): Set it.
6195         (gate_handle_delay_slots): Check it.
6196         * config/mips/mips.c (mips_base_delayed_branch): Delete.
6197         (mips_reorg): Check flag_delayed_branch instead of
6198         mips_base_delayed_branch.
6199         (mips_override_options): Don't set mips_base_delayed_branch
6200         or flag_delayed_branch.
6201
6202 2009-01-06  Richard Sandiford  <rdsandiford@googlemail.com>
6203
6204         PR rtl-optimization/38426.
6205         * ira.c (ira): Set current_function_is_leaf earlier.
6206
6207 2009-01-06  Jakub Jelinek  <jakub@redhat.com>
6208
6209         PR rtl-optimization/38722
6210         * combine.c (try_combine): Don't modify PATTERN (i3) and notes
6211         too early, only set a flag and modify after last possible
6212         undo_all point.
6213
6214 2009-01-06  Janis Johnson  <janis187@us.ibm.com>
6215
6216         PR c/34252
6217         * ginclude/float.h: Rename DECnn_DEN to DECnn_SUBNORMAL_MIN.
6218         * real.c (decimal_single_format): Correct values of emin and emax.
6219         (decimal_double_format): Ditto.
6220         (decimal_quad_format): Ditto.
6221         * c-cppbuiltin.c (builtin_define_decimal_float_constants): Adjust
6222         computation of DECnn_MIN and DECnn_MAX for corrected values of
6223         emin and emax.  Define __DECnn_SUBNORMAL_MIN__ instead of
6224         __DECnn_MIN__, and adjust its computation for the corrected value
6225         of emin.
6226
6227 2009-01-06  Jan Hubicka  <jh@suse.cz>
6228
6229         PR target/38744
6230         * config/i386/i386.c (ix86_expand_call): Use ARRAY_SIZE.
6231
6232 2009-01-06  Gerald Pfeifer  <gerald@pfeifer.com>
6233
6234         * doc/contrib.texi (Contributors): Slightly adjust the end note.
6235         Add Robert Clark to the list of testers.
6236
6237 2009-01-06  Jan Hubicka  <jh@suse.cz>
6238             Kai Tietz  <kai.tietz@onevision.com>
6239
6240         * config/i386/i386.md (*msabi_syvabi): Add SSE regs clobbers.
6241         * config/i386/i386.c (ix86_expand_call): Add clobbers.
6242
6243 2009-01-06  Jan Hubicka  <jh@suse.cz>
6244             Kai Tietz  <kai.tietz@onevision.com>
6245
6246         * config/i386/i386.h (CONDITIONAL_CALL_USAGE): SSE regs are not used
6247         for w64 ABI.
6248         * config/i386/i386.c (struct ix86_frame): Add padding0 and nsseregs.
6249         (ix86_nsaved_regs): Count only general purpose regs.
6250         (ix86_nsaved_sseregs): New.
6251         (ix86_compute_frame_layout): Update nsseregs; set preferred alignment
6252         to 16 for w64; compute padding and size of sse reg save area.
6253         (ix86_emit_save_regs, ix86_emit_save_regs_using_mov): Save only
6254         general purpose regs.
6255         (ix86_emit_save_sse_regs_using_mov): New.
6256         (ix86_expand_prologue): Save SSE regs if needed.
6257         (ix86_emit_restore_regs_using_mov): Use only general purpose regs.
6258         (ix86_emit_restore_sse_regs_using_mov): New.
6259         (ix86_expand_epilogue): Save SSE regs if needed.
6260
6261 2009-01-06  Jan Hubicka  <jh@suse.cz>
6262             Kai Tietz  <kai.tietz@onevision.com>
6263
6264         * config/i386/i386.h (ACCUMULATE_OUTGOING_ARGS): Enable for MSABI
6265         * config/i386/i386.c (init_cumulative_args): Disallow calls of MSABI
6266         functions when accumulate outgoing args is off.
6267
6268 2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>
6269
6270         PR bootstrap/38742
6271         * ira-color.c (ira_reuse_stack_slot): Check ENABLE_IRA_CHECKING
6272         before using pseudos_have_intersected_live_ranges_p.
6273
6274         * ira-int.h (ira_assert): Always define.
6275
6276 2009-01-06  H.J. Lu  <hongjiu.lu@intel.com>
6277
6278         AVX Programming Reference (December, 2008)
6279         * config/i386/avxintrin.h (_mm_permute2_pd): Removed.
6280         (_mm256_permute2_pd): Likewise.
6281         (_mm_permute2_ps): Likewise.
6282         (_mm256_permute2_ps): Likewise.
6283         * config/i386/i386.md (UNSPEC_VPERMIL2): Likewise.
6284         * config/i386/sse.md (avx_vpermil2<mode>3): Likewise.
6285
6286         * config/i386/i386.c (ix86_builtins): Remove
6287         IX86_BUILTIN_VPERMIL2PD, IX86_BUILTIN_VPERMIL2PS,
6288         IX86_BUILTIN_VPERMIL2PD256 and IX86_BUILTIN_VPERMIL2PS256.
6289         (ix86_builtin_type): Remove V8SF_FTYPE_V8SF_V8SF_V8SI_INT,
6290         V4DF_FTYPE_V4DF_V4DF_V4DI_INT, V4SF_FTYPE_V4SF_V4SF_V4SI_INT
6291         and V2DF_FTYPE_V2DF_V2DF_V2DI_INT.
6292         (bdesc_args): Remove __builtin_ia32_vpermil2pd,
6293         __builtin_ia32_vpermil2ps, __builtin_ia32_vpermil2pd256 and
6294         __builtin_ia32_vpermil2ps256.
6295         (ix86_init_mmx_sse_builtins): Updated.
6296         (ix86_expand_args_builtin): Likewise.
6297
6298 2009-01-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
6299
6300         * pa.c (output_call): Relocate non-jump insns in the delay slot of
6301         long absolute calls when generating PA 2.0 code.
6302
6303 2009-01-05  Vladimir Makarov  <vmakarov@redhat.com>
6304
6305         PR rtl-optimization/38583
6306         * params.h (IRA_MAX_CONFLICT_TABLE_SIZE): New macro.
6307
6308         * params.def (ira-max-conflict-table-size): New.
6309
6310         * doc/invoke.texi (ira-max-conflict-table-size): Decribe.
6311         
6312         * ira.h (ira_conflicts_p): New external definition.
6313         
6314         * ira-conflicts.c (build_conflict_bit_table): Do not build too big
6315         table.  Report this.  Return result of building.
6316         (ira_build_conflicts): Use ira_conflicts_p.  Check result of
6317         building conflict table.
6318
6319         * ira-color.c (fast_allocation): Use num instead of ira_allocnos_num.
6320         (ira_color): Use ira_conflicts_p.
6321         
6322         * global.c: Include ira.h.
6323         (pseudo_for_reload_consideration_p, build_insn_chain): Use
6324         ira_conflicts_p.
6325
6326         * Makefile.in (global.o): Add ira.h.
6327         
6328         * ira-build.c (mark_all_loops_for_removal,
6329         propagate_some_info_from_allocno): New.
6330         (remove_unnecessary_allocnos): Call
6331         propagate_some_info_from_allocno.
6332         (remove_low_level_allocnos): New.
6333         (remove_unnecessary_regions): Add parameter.  Call
6334         mark_all_loops_for_removal and remove_low_level_allocnos.  Pass
6335         parameter to remove_unnecessary_regions.
6336         (ira_build): Remove all regions but root if the conflict table was
6337         not built.  Update conflict hard regs for allocnos crossing calls.
6338
6339         * ira.c (ira_conflicts_p): New global.
6340         (ira): Define and use ira_conflicts_p.
6341
6342         * reload1.c (compute_use_by_pseudos, reload, count_pseudo,
6343         count_spilled_pseudo, find_reg, alter_reg, finish_spills,
6344         emit_input_reload_insns, delete_output_reload): Use ira_conflicts_p.
6345         
6346 2009-01-06  Ben Elliston  <bje@au.ibm.com>
6347
6348         * gengtype-lex.l (YY_NO_INPUT): Define.
6349
6350 2009-01-05  Andrew Pinski  <andrew_pinski@playstation.sony.com>
6351
6352         PR c/34911
6353         * c-common.c (handle_vector_size_attribute): Also reject
6354         BOOLEAN_TYPE types.
6355
6356 2009-01-05  Sebastian Pop  <sebastian.pop@amd.com>
6357
6358         PR tree-optimization/38492
6359         * graphite.c (rename_map_elt, debug_rename_elt,
6360         debug_rename_map_1, debug_rename_map, new_rename_map_elt,
6361         rename_map_elt_info, eq_rename_map_elts,
6362         get_new_name_from_old_name, bb_in_sese_p): Moved around.
6363         (sese_find_uses_to_rename_use): Renamed sese_build_livein_liveouts_use.
6364         (sese_find_uses_to_rename_bb): Renamed sese_build_livein_liveouts_bb.
6365         (sese_build_livein_liveouts): New.
6366         (new_sese, free_sese): New.
6367         (new_scop): Call new_sese.
6368         (free_scop): Call free_sese.
6369         (rename_variables_from_edge, rename_phis_end_scop): Removed.
6370         (register_old_new_names): Renamed register_old_and_new_names.
6371         (register_scop_liveout_renames, add_loop_exit_phis,
6372         insert_loop_close_phis, struct igp,
6373         default_liveout_before_guard, add_guard_exit_phis,
6374         insert_guard_phis, copy_renames): New.
6375         (translate_clast): Call insert_loop_close_phis and insert_guard_phis.
6376         (sese_add_exit_phis_edge): Renamed scop_add_exit_phis_edge.
6377         (rewrite_into_sese_closed_ssa): Renamed scop_insert_phis_for_liveouts.
6378         (scop_adjust_phis_for_liveouts): New.
6379         (gloog): Call scop_adjust_phis_for_liveouts.
6380
6381         * graphite.h (struct sese): Documented.  Added fields liveout,
6382         num_ver and livein.
6383         (SESE_LIVEOUT, SESE_LIVEIN, SESE_LIVEIN_VER, SESE_NUM_VER): New.
6384         (new_sese, free_sese, sese_build_livein_liveouts): Declared.
6385         (struct scop): Added field liveout_renames.
6386         (SCOP_LIVEOUT_RENAMES): New.
6387
6388 2009-01-05  Harsha Jagasia  <harsha.jagasia@amd.com>
6389
6390         PR tree-optimization/38510
6391         * graphite.c (recompute_all_dominators): Call mark_irreducible_loops.
6392         (translate_clast): Call recompute_all_dominators before
6393         graphite_verify.
6394         (gloog): Call recompute_all_dominators before graphite_verify.
6395
6396 2009-01-05  Harsha Jagasia  <harsha.jagasia@amd.com>
6397             Jan Sjodin  <jan.sjodin@amd.com>
6398
6399         PR tree-optimization/38500
6400         * graphite.c (create_sese_edges): Call fix_loop_structure after
6401         splitting blocks.
6402
6403 2009-01-05  Joel Sherrill  <joel.sherrill@oarcorp.com>
6404
6405         * config.gcc: Add m32r*-*-rtems*.
6406         * config/m32r/rtems.h: New file.
6407
6408 2009-01-05  Ben Elliston  <bje@au.ibm.com>
6409
6410         * Makefile.in (.po.gmo): Use mkinstalldirs, not test -d || mkdir.
6411         (.po.pox): Likewise.
6412         (po/gcc.pot): Likewise.
6413
6414 2009-01-04  David S. Miller  <davem@davemloft.net>
6415
6416         * config/sparc/sparc.h (SECONDARY_MEMORY_NEEDED_RTX): Delete.
6417         (STARTING_FRAME_OFFSET): Always set to zero.
6418
6419 2009-01-04  Richard Sandiford  <rdsandiford@googlemail.com>
6420
6421         * tree.def (LSHIFT_EXPR, RSHIFT_EXPR): Add commentary.
6422         * tree-cfg.c (verify_gimple_assign_binary): Allow shifts of
6423         fixed-point types, and vectors of the same.
6424
6425 2009-01-04  Richard Sandiford  <rdsandiford@googlemail.com>
6426
6427         * config/mips/sync.md (*mb_barrier): Rename to...
6428         (*memory_barrier): ...this.
6429
6430 2009-01-04  Jonathan Wakely  <jwakely.gcc@gmail.com>
6431
6432         * doc/extend.texi (Function Attributes): Move @cindex after @item
6433         for 'artificial' and 'flatten'. Fix grammar for 'externally_visible'
6434         and put in alphabetical order. Fix 'target' name and put in order.
6435         * doc/invoke.texi (-Wstrict-null-sentinel, -fipa-matrix-reorg): Fix
6436         typos.
6437
6438 2009-01-04  Uros Bizjak  <ubizjak@gmail.com>
6439
6440         * config/s390/s390.md (UNSPEC_MB): Rename from UNSPECV_MB.
6441         (memory_barrier): Expand as unspec instead of unspec_volatile.
6442         Remove mem:BLK from insn operands.  Use Pmode scratch register.
6443         (*memory_barrier): Define as unspec instead of unspec_volatile.
6444         Use (match_dup 0) as input operand.
6445
6446         * config/sparc/sparc.md (UNSPEC_MEMBAR): Rename from UNSPECV_MEMBAR.
6447         * config/sparc/sync.md (memory_barrier): Expand as unspec instead of
6448         unspec_volatile.  Remove mem:BLK from insn operands.  Use Pmode
6449         scratch register.  Remove operand 1.
6450         (*stbar): Define as unspec instead of unspec_volatile.
6451         Use (match_dup 0) as input operand, remove (const_int 8).
6452         (*membar): Define as unspec instead of unspec_volatile.
6453         Use (match_dup 0) as input operand, remove input operand 2.
6454
6455         * config/xtensa/xtensa.md (UNSPEC_MEMW): Rename from UNSPECV_MEMW.
6456         (memory_barrier): Expand as unspec instead of unspec_volatile.
6457         Remove mem:BLK from insn operands.  Use Pmode scratch register.
6458         (*memory_barrier): Define as unspec instead of unspec_volatile.
6459         Use (match_dup 0) as input operand.
6460
6461         * config/ia64/sync.md (memory_barrier): Redefine as expander pattern.
6462         Remove mem:BLK from insn operands.  Use Pmode scratch register.
6463         Set volatile flag on operand 0.
6464         (*memory_barrier): New insn pattern.
6465
6466         * config/rs6000/sync.md (memory_barrier): Remove mem:BLK from
6467         insn operands.
6468         (*memory_barrier): Use (match_dup 0) as input operand.
6469
6470         * config/mips/sync.md (memory_barrier): Redefine as expander pattern.
6471         Remove mem:BLK from insn operands.  Use Pmode scratch register.
6472         Set volatile flag on operand 0.
6473         (*mb_internal): New insn pattern.
6474
6475         * config/alpha/sync.md (*memory_barrier): Rename from *mb_internal.
6476
6477 2009-01-04  Steven Bosscher  <steven@gcc.gnu.org>
6478
6479         PR middle-end/38586
6480         * function.c (struct temp_slot): Move to the section of the file
6481         that deals with temp slots.  Remove field 'address'.
6482         (temp_slot_address_table): New hash table of address -> temp slot.
6483         (struct temp_slot_address_entry): New struct, items for the table.
6484         (temp_slot_address_compute_hash, temp_slot_address_hash,
6485         temp_slot_address_eq, insert_temp_slot_address): Support functions
6486         for the new table.
6487         (find_temp_slot_from_address): Rewrite to use the new hash table.
6488         (remove_unused_temp_slot_addresses): Remove addresses of temp
6489         slots that have been made available.
6490         (remove_unused_temp_slot_addresses_1): Call-back for htab_traverse,
6491         worker function for remove_unused_temp_slot_addresses.
6492         (assign_stack_temp_for_type): Don't clear the temp slot address list.
6493         Add the temp slot address to the address -> temp slot map.
6494         (update_temp_slot_address): Update via insert_temp_slot_address.
6495         (free_temp_slots): Call remove_unused_temp_slot_addresses.
6496         (pop_temp_slots): Likewise.
6497         (init_temp_slots): Allocate the address -> temp slot map, or empty
6498         the map if it is already allocated.
6499         (prepare_function_start): Initialize temp slot processing.
6500
6501 2009-01-04  Steven Bosscher  <steven@gcc.gnu.org>
6502
6503         PR middle-end/38584
6504         * cfgexpand.c (estimate_stack_frame_size): Simplify the estimate:
6505         Calculate the size of all stack vars assuming no packing of stack
6506         vars will happen, replacing a quadratic algorithm with a linear one.
6507
6508 2009-01-03  Jakub Jelinek  <jakub@redhat.com>
6509
6510         PR target/38707
6511         * expmed.c (store_bit_field_1): Don't modify op0 if movstrict insn
6512         can't be used.
6513
6514 2009-01-03  Diego Novillo  <dnovillo@google.com>
6515
6516         * doc/contrib.texi: Update contributions.
6517
6518 2009-01-03  Jakub Jelinek  <jakub@redhat.com>
6519
6520         PR c++/38705
6521         * builtins.c (fold_builtin_memory_op): Give up if either operand
6522         is volatile.  Set srctype or desttype to non-qualified version
6523         of the other type.
6524
6525         PR c/38700
6526         * builtins.c (fold_builtin_expect): Only check DECL_WEAK for VAR_DECLs
6527         and FUNCTION_DECLs.
6528
6529 2009-01-02  Kenneth Zadeck  <zadeck@naturalbridge.com>
6530
6531         PR rtl-optimization/35805
6532         * df-problems.c (df_lr_finalize): Add recursive call to resolve lr
6533         problem if fast dce is able to remove any instructions.
6534         * dce.c (dce_process_block): Fix dump message.
6535         
6536 2009-01-02  Mark Mitchell  <mark@codesourcery.com>
6537
6538         PR 33649
6539         * tree-ssa-pre.c (compute_antic): Correct loop bounds.
6540
6541 2009-01-02  Jakub Jelinek  <jakub@redhat.com>
6542
6543         PR middle-end/38690
6544         * tree-flow.h (op_code_prio, op_prio): New prototypes.
6545         * tree-pretty-print.c (op_code_prio): New function.
6546         (op_prio): No longer static.  Use op_code_prio.
6547         * gimple-pretty-print.c (dump_unary_rhs, dump_binary_rhs):
6548         Use op_prio and op_code_prio to determine if () should be
6549         printed around operand(s) or not.
6550
6551         * gimple-pretty-print.c (dump_unary_rhs, dump_binary_rhs,
6552         dump_gimple_call, dump_gimple_switch, dump_gimple_cond,
6553         dump_gimple_label, dump_gimple_try, dump_symbols, dump_gimple_phi,
6554         dump_gimple_mem_ops, dump_bb_header, dump_bb_end, pp_cfg_jump): Use
6555         pp_character instead of pp_string for single letter printing.
6556
6557 2009-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
6558
6559         * doc/extend.texi: Fix '#pragma GCC option' typo.
6560
6561 2009-01-02  Richard Guenther  <rguenther@suse.de>
6562
6563         * doc/install.texi (--enable-checking): Mention different
6564         default for stage1.
6565         (--enable-stage1-checking): Document.
6566
6567 2009-01-01  Andrew Pinski  <pinskia@gmail.com>
6568
6569         PR middle-end/30142
6570         * tree-cfg.c (verify_expr): Add INDIRECT_REF case.  Change MODIFY_EXPR
6571         case to be an error.
6572
6573 2009-01-02  Ben Elliston  <bje@au.ibm.com>
6574
6575         * config/fp-bit.h (pack_d): Constify argument.
6576         * config/fp-bit.c (makenan): Constify return type. Remove casts.
6577         (isnan): Constify argument.
6578         (isinf): Likewise.
6579         (iszero): Likewise.
6580         (pack_d): Likewise.
6581         (_fpadd_parts): Constify return type.
6582         (_fpmul_parts): Likewise.
6583         (_fpdiv_parts): Likewise.
6584
6585 2009-01-01  Jakub Jelinek  <jakub@redhat.com>
6586
6587         PR c/36489
6588         * c-typeck.c (add_pending_init): Add IMPLICIT argument.  Only
6589         warn about overwriting initializer with side-effects or
6590         -Woverride-init if !IMPLICIT.
6591         (output_init_element): Likewise.  Pass IMPLICIT down to
6592         add_pending_init.
6593         (process_init_element): Add IMPLICIT argument.  Pass it down
6594         to output_init_element.
6595         (push_init_element, pop_init_level, set_designator): Adjust
6596         process_init_element callers.
6597         (set_nonincremental_init, set_nonincremental_init_from_string):
6598         Adjust add_pending_init callers.
6599         (output_pending_init_elements): Adjust output_init_element callers.
6600         * c-tree.h (process_init_element): Adjust prototype.
6601         * c-parser.c (c_parser_initelt, c_parser_initval): Adjust
6602         process_init_element callers.