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2009-04-10 Paolo Bonzini <bonzini@gnu.org>
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2009-04-10  Paolo Bonzini  <bonzini@gnu.org>
2
3         PR tree-optimization/39701
4         * doc/invoke.texi (Optimization Options): Document change in
5         meaning and initialization of -fdelete-null-pointer-checks.
6
7 2009-04-10  H.J. Lu  <hongjiu.lu@intel.com>
8
9         PR middle-end/39701
10         * common.opt (-fdelete-null-pointer-checks): Initialize to 1.
11
12         * opts.c (decode_options): Don't set flag_delete_null_pointer_checks
13         here.
14
15         * doc/invoke.texi: Update -fdelete-null-pointer-checks.
16
17 2009-04-10  Chao-ying Fu  <fu@mips.com>
18
19         * doc/tm.texi (Instruction Output): Document
20         TARGET_ASM_FINAL_POSTSCAN_INSN.
21         * target.h (final_postscan_insn): New field in asm_out.
22         * target-def.h (TARGET_ASM_FINAL_POSTSCAN_INSN): New define.
23         (TARGET_ASM_OUT): Add TARGET_ASM_FINAL_POSTSCAN_INSN.
24         * final.c (final_scan_insn): Call
25         targetm.asm_out.final_postscan_insn after outputting
26         an asm macro and a normal instruction.
27
28         * config/mips/mips.h (FINAL_PRESCAN_INSN): New define.
29         * config/mips/mips-protos.h (mips_final_prescan_insn): Declare.
30         * config/mips/mips.c (mips_at_reg_p): New for_each_rtx callback.
31         (mips_final_prescan_insn, mips_final_postscan_insn): New functions.
32         (TARGET_ASM_FINAL_POSTSCAN_INSN): New define.
33
34 2009-04-10  Paolo Bonzini  <bonzini@gnu.org>
35
36         PR middle-end/39701
37         * fold-const.c (tree_single_nonzero_warnv_p): Pass non-static
38         variables as non-NULL even with -fdelete-null-pointer-checks.
39
40 2009-04-10  H.J. Lu  <hongjiu.lu@intel.com>
41
42         * config/rs6000/darwin-vecsave.asm: Remove extra "*/".
43
44 2009-04-09  H.J. Lu  <hongjiu.lu@intel.com>
45
46         PR target/39678
47         * config/i386/i386.c (classify_argument): Handle SCmode with
48         (bit_offset % 64) != 0.
49
50 2009-04-09  Sandra Loosemore  <sandra@codesourcery.com>
51
52         * doc/invoke.texi (Optimize Options): Add cross-reference to
53         -Q --help=optimizers examples.
54
55 2009-04-10  Ben Elliston  <bje@au.ibm.com>
56
57         PR target/36800
58         * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Do not set
59         regalign for the reg == fpr and TDmode case.
60
61 2009-04-09  David Ayers  <ayers@fsfe.org>
62
63         PR objc/29200
64         * objc/objc-act.c (warn_with_method): Remove helper function.
65         (check_duplicates): Call warning and inform directly.
66         (really_start_method): Likewise.
67
68 2009-04-09  Paolo Bonzini  <bonzini@gnu.org>
69
70         * expmed.c (expand_divmod): Always use a comparison for a division
71         by a large unsigned integer.
72
73         * fold-const.c (tree_single_nonzero_warnv_p): Always treat decls
74         for things others than variables or functions as nonzero.
75
76 2009-04-09  Nick Clifton  <nickc@redhat.com>
77
78         * unwind-compat.c: Change copyright header to refer to version
79         3 of the GNU General Public License with version 3.1 of the
80         GCC Runtime Library Exception and to point readers at the
81         COPYING3 and COPYING3.RUNTIME files and the FSF's license web page.
82         * config/alpha/crtfastmath.c: Likewise.
83         * config/alpha/linux-unwind.h: Likewise.
84         * config/alpha/qrnnd.asm: Likewise.
85         * config/alpha/vms-crt0-64.c: Likewise.
86         * config/alpha/vms-crt0.c: Likewise.
87         * config/alpha/vms-dwarf2.asm: Likewise.
88         * config/alpha/vms-dwarf2eh.asm: Likewise.
89         * config/alpha/vms-psxcrt0-64.c: Likewise.
90         * config/alpha/vms-psxcrt0.c: Likewise.
91         * config/alpha/vms_tramp.asm: Likewise.
92         * config/arc/initfini.c: Likewise.
93         * config/arc/lib1funcs.asm: Likewise.
94         * config/arm/bpabi-v6m.S: Likewise.
95         * config/arm/bpabi.S: Likewise.
96         * config/arm/bpabi.c: Likewise.
97         * config/arm/crti.asm: Likewise.
98         * config/arm/crtn.asm: Likewise.
99         * config/arm/ieee754-df.S: Likewise.
100         * config/arm/ieee754-sf.S: Likewise.
101         * config/arm/lib1funcs.asm: Likewise.
102         * config/arm/libunwind.S: Likewise.
103         * config/arm/linux-atomic.c: Likewise.
104         * config/arm/mmintrin.h: Likewise.
105         * config/arm/pr-support.c: Likewise.
106         * config/arm/unaligned-funcs.c: Likewise.
107         * config/arm/unwind-arm.c: Likewise.
108         * config/arm/unwind-arm.h: Likewise.
109         * config/avr/libgcc.S: Likewise.
110         * config/bfin/crti.s: Likewise.
111         * config/bfin/crtlibid.s: Likewise.
112         * config/bfin/crtn.s: Likewise.
113         * config/bfin/lib1funcs.asm: Likewise.
114         * config/bfin/linux-unwind.h: Likewise.
115         * config/cris/arit.c: Likewise.
116         * config/cris/cris_abi_symbol.c: Likewise.
117         * config/darwin-64.c: Likewise.
118         * config/darwin-crt2.c: Likewise.
119         * config/darwin-crt3.c: Likewise.
120         * config/darwin.h: Likewise.
121         * config/dbxelf.h: Likewise.
122         * config/dfp-bit.c: Likewise.
123         * config/dfp-bit.h: Likewise.
124         * config/elfos.h: Likewise.
125         * config/fixed-bit.c: Likewise.
126         * config/fixed-bit.h: Likewise.
127         * config/fp-bit.c: Likewise.
128         * config/fp-bit.h: Likewise.
129         * config/fr30/crti.asm: Likewise.
130         * config/fr30/crtn.asm: Likewise.
131         * config/fr30/lib1funcs.asm: Likewise.
132         * config/freebsd-spec.h: Likewise.
133         * config/frv/cmovd.c: Likewise.
134         * config/frv/cmovh.c: Likewise.
135         * config/frv/cmovw.c: Likewise.
136         * config/frv/frvbegin.c: Likewise.
137         * config/frv/frvend.c: Likewise.
138         * config/frv/lib1funcs.asm: Likewise.
139         * config/glibc-stdint.h: Likewise.
140         * config/h8300/clzhi2.c: Likewise.
141         * config/h8300/crti.asm: Likewise.
142         * config/h8300/crtn.asm: Likewise.
143         * config/h8300/ctzhi2.c: Likewise.
144         * config/h8300/fixunssfsi.c: Likewise.
145         * config/h8300/lib1funcs.asm: Likewise.
146         * config/h8300/parityhi2.c: Likewise.
147         * config/h8300/popcounthi2.c: Likewise.
148         * config/i386/ammintrin.h: Likewise.
149         * config/i386/att.h: Likewise.
150         * config/i386/avxintrin.h: Likewise.
151         * config/i386/biarch64.h: Likewise.
152         * config/i386/bmmintrin.h: Likewise.
153         * config/i386/cpuid.h: Likewise.
154         * config/i386/cross-stdarg.h: Likewise.
155         * config/i386/crtfastmath.c: Likewise.
156         * config/i386/crtprec.c: Likewise.
157         * config/i386/cygming-crtbegin.c: Likewise.
158         * config/i386/cygming-crtend.c: Likewise.
159         * config/i386/cygwin.asm: Likewise.
160         * config/i386/emmintrin.h: Likewise.
161         * config/i386/gmm_malloc.h: Likewise.
162         * config/i386/gthr-win32.c: Likewise.
163         * config/i386/i386.h: Likewise.
164         * config/i386/immintrin.h: Likewise.
165         * config/i386/linux-unwind.h: Likewise.
166         * config/i386/linux64.h: Likewise.
167         * config/i386/mm3dnow.h: Likewise.
168         * config/i386/mmintrin-common.h: Likewise.
169         * config/i386/mmintrin.h: Likewise.
170         * config/i386/nmmintrin.h: Likewise.
171         * config/i386/pmm_malloc.h: Likewise.
172         * config/i386/pmmintrin.h: Likewise.
173         * config/i386/smmintrin.h: Likewise.
174         * config/i386/sol2-c1.asm: Likewise.
175         * config/i386/sol2-ci.asm: Likewise.
176         * config/i386/sol2-cn.asm: Likewise.
177         * config/i386/sol2-gc1.asm: Likewise.
178         * config/i386/tmmintrin.h: Likewise.
179         * config/i386/unix.h: Likewise.
180         * config/i386/w32-unwind.h: Likewise.
181         * config/i386/wmmintrin.h: Likewise.
182         * config/i386/x86-64.h: Likewise.
183         * config/i386/x86intrin.h: Likewise.
184         * config/i386/xmmintrin.h: Likewise.
185         * config/ia64/crtbegin.asm: Likewise.
186         * config/ia64/crtend.asm: Likewise.
187         * config/ia64/crtfastmath.c: Likewise.
188         * config/ia64/crti.asm: Likewise.
189         * config/ia64/crtn.asm: Likewise.
190         * config/ia64/fde-glibc.c: Likewise.
191         * config/ia64/lib1funcs.asm: Likewise.
192         * config/ia64/linux-unwind.h: Likewise.
193         * config/ia64/quadlib.c: Likewise.
194         * config/ia64/unwind-ia64.c: Likewise.
195         * config/linux.h: Likewise.
196         * config/m32c/m32c-lib1.S: Likewise.
197         * config/m32c/m32c-lib2-trapv.c: Likewise.
198         * config/m32c/m32c-lib2.c: Likewise.
199         * config/m32r/initfini.c: Likewise.
200         * config/m68hc11/larith.asm: Likewise.
201         * config/m68hc11/m68hc11-crt0.S: Likewise.
202         * config/m68k/cf.md: Likewise.
203         * config/m68k/crti.s: Likewise.
204         * config/m68k/crtn.s: Likewise.
205         * config/m68k/lb1sf68.asm: Likewise.
206         * config/m68k/linux-unwind.h: Likewise.
207         * config/mcore/crti.asm: Likewise.
208         * config/mcore/crtn.asm: Likewise.
209         * config/mcore/lib1.asm: Likewise.
210         * config/mips/linux-unwind.h: Likewise.
211         * config/mips/loongson.h: Likewise.
212         * config/mips/mips16.S: Likewise.
213         * config/mmix/crti.asm: Likewise.
214         * config/mmix/crtn.asm: Likewise.
215         * config/pa/fptr.c: Likewise.
216         * config/pa/hpux-unwind.h: Likewise.
217         * config/pa/lib2funcs.asm: Likewise.
218         * config/pa/linux-atomic.c: Likewise.
219         * config/pa/linux-unwind.h: Likewise.
220         * config/pa/milli64.S: Likewise.
221         * config/pa/quadlib.c: Likewise.
222         * config/pa/stublib.c: Likewise.
223         * config/picochip/libgccExtras/adddi3.asm: Likewise.
224         * config/picochip/libgccExtras/ashlsi3.asm: Likewise.
225         * config/picochip/libgccExtras/ashlsi3.c: Likewise.
226         * config/picochip/libgccExtras/ashrsi3.asm: Likewise.
227         * config/picochip/libgccExtras/ashrsi3.c: Likewise.
228         * config/picochip/libgccExtras/cmpsi2.asm: Likewise.
229         * config/picochip/libgccExtras/divmod15.asm: Likewise.
230         * config/picochip/libgccExtras/divmodhi4.asm: Likewise.
231         * config/picochip/libgccExtras/divmodsi4.asm: Likewise.
232         * config/picochip/libgccExtras/longjmp.asm: Likewise.
233         * config/picochip/libgccExtras/lshrsi3.asm: Likewise.
234         * config/picochip/libgccExtras/lshrsi3.c: Likewise.
235         * config/picochip/libgccExtras/parityhi2.asm: Likewise.
236         * config/picochip/libgccExtras/popcounthi2.asm: Likewise.
237         * config/picochip/libgccExtras/setjmp.asm: Likewise.
238         * config/picochip/libgccExtras/subdi3.asm: Likewise.
239         * config/picochip/libgccExtras/ucmpsi2.asm: Likewise.
240         * config/picochip/libgccExtras/udivmodhi4.asm: Likewise.
241         * config/picochip/libgccExtras/udivmodsi4.asm: Likewise.
242         * config/rs6000/750cl.h: Likewise.
243         * config/rs6000/altivec.h: Likewise.
244         * config/rs6000/biarch64.h: Likewise.
245         * config/rs6000/crtresfpr.asm: Likewise.
246         * config/rs6000/crtresgpr.asm: Likewise.
247         * config/rs6000/crtresxfpr.asm: Likewise.
248         * config/rs6000/crtresxgpr.asm: Likewise.
249         * config/rs6000/crtsavfpr.asm: Likewise.
250         * config/rs6000/crtsavgpr.asm: Likewise.
251         * config/rs6000/darwin-asm.h: Likewise.
252         * config/rs6000/darwin-fallback.c: Likewise.
253         * config/rs6000/darwin-fpsave.asm: Likewise.
254         * config/rs6000/darwin-ldouble.c: Likewise.
255         * config/rs6000/darwin-tramp.asm: Likewise.
256         * config/rs6000/darwin-unwind.h: Likewise.
257         * config/rs6000/darwin-vecsave.asm: Likewise.
258         * config/rs6000/darwin-world.asm: Likewise.
259         * config/rs6000/e500crtres32gpr.asm: Likewise.
260         * config/rs6000/e500crtres64gpr.asm: Likewise.
261         * config/rs6000/e500crtres64gprctr.asm: Likewise.
262         * config/rs6000/e500crtrest32gpr.asm: Likewise.
263         * config/rs6000/e500crtrest64gpr.asm: Likewise.
264         * config/rs6000/e500crtresx32gpr.asm: Likewise.
265         * config/rs6000/e500crtresx64gpr.asm: Likewise.
266         * config/rs6000/e500crtsav32gpr.asm: Likewise.
267         * config/rs6000/e500crtsav64gpr.asm: Likewise.
268         * config/rs6000/e500crtsav64gprctr.asm: Likewise.
269         * config/rs6000/e500crtsavg32gpr.asm: Likewise.
270         * config/rs6000/e500crtsavg64gpr.asm: Likewise.
271         * config/rs6000/e500crtsavg64gprctr.asm: Likewise.
272         * config/rs6000/eabi-ci.asm: Likewise.
273         * config/rs6000/eabi-cn.asm: Likewise.
274         * config/rs6000/eabi.asm: Likewise.
275         * config/rs6000/linux-unwind.h: Likewise.
276         * config/rs6000/linux64.h: Likewise.
277         * config/rs6000/paired.h: Likewise.
278         * config/rs6000/paired.md: Likewise.
279         * config/rs6000/ppc64-fp.c: Likewise.
280         * config/rs6000/ppu_intrinsics.h: Likewise.
281         * config/rs6000/rs6000.h: Likewise.
282         * config/rs6000/si2vmx.h: Likewise.
283         * config/rs6000/sol-ci.asm: Likewise.
284         * config/rs6000/sol-cn.asm: Likewise.
285         * config/rs6000/spe.h: Likewise.
286         * config/rs6000/spu2vmx.h: Likewise.
287         * config/rs6000/sysv4.h: Likewise.
288         * config/rs6000/tramp.asm: Likewise.
289         * config/rs6000/vec_types.h: Likewise.
290         * config/s390/linux-unwind.h: Likewise.
291         * config/s390/tpf-unwind.h: Likewise.
292         * config/score/crti.asm: Likewise.
293         * config/score/crtn.asm: Likewise.
294         * config/sh/crt1.asm: Likewise.
295         * config/sh/crti.asm: Likewise.
296         * config/sh/crtn.asm: Likewise.
297         * config/sh/divtab-sh4-300.c: Likewise.
298         * config/sh/divtab-sh4.c: Likewise.
299         * config/sh/divtab.c: Likewise.
300         * config/sh/lib1funcs-4-300.asm: Likewise.
301         * config/sh/lib1funcs-Os-4-200.asm: Likewise.
302         * config/sh/lib1funcs.asm: Likewise.
303         * config/sh/lib1funcs.h: Likewise.
304         * config/sh/linux-atomic.asm: Likewise.
305         * config/sh/linux-unwind.h: Likewise.
306         * config/sh/shmedia.h: Likewise.
307         * config/sh/sshmedia.h: Likewise.
308         * config/sh/ushmedia.h: Likewise.
309         * config/sparc/crtfastmath.c: Likewise.
310         * config/sparc/linux-unwind.h: Likewise.
311         * config/sparc/sol2-c1.asm: Likewise.
312         * config/sparc/sol2-ci.asm: Likewise.
313         * config/sparc/sol2-cn.asm: Likewise.
314         * config/spu/divmodti4.c: Likewise.
315         * config/spu/divv2df3.c: Likewise.
316         * config/spu/float_disf.c: Likewise.
317         * config/spu/float_unsdidf.c: Likewise.
318         * config/spu/float_unsdisf.c: Likewise.
319         * config/spu/float_unssidf.c: Likewise.
320         * config/spu/mfc_multi_tag_release.c: Likewise.
321         * config/spu/mfc_multi_tag_reserve.c: Likewise.
322         * config/spu/mfc_tag_release.c: Likewise.
323         * config/spu/mfc_tag_reserve.c: Likewise.
324         * config/spu/mfc_tag_table.c: Likewise.
325         * config/spu/multi3.c: Likewise.
326         * config/spu/spu_internals.h: Likewise.
327         * config/spu/spu_intrinsics.h: Likewise.
328         * config/spu/spu_mfcio.h: Likewise.
329         * config/spu/vec_types.h: Likewise.
330         * config/spu/vmx2spu.h: Likewise.
331         * config/stormy16/stormy16-lib2.c: Likewise.
332         * config/svr4.h: Likewise.
333         * config/sync.c: Likewise.
334         * config/v850/lib1funcs.asm: Likewise.
335         * config/vxlib-tls.c: Likewise.
336         * config/vxlib.c: Likewise.
337         * config/vxworks-dummy.h: Likewise.
338         * config/xtensa/crti.asm: Likewise.
339         * config/xtensa/crtn.asm: Likewise.
340         * config/xtensa/ieee754-df.S: Likewise.
341         * config/xtensa/ieee754-sf.S: Likewise.
342         * config/xtensa/lib1funcs.asm: Likewise.
343         * config/xtensa/lib2funcs.S: Likewise.
344         * config/xtensa/linux-unwind.h: Likewise.
345         * config/xtensa/unwind-dw2-xtensa.c: Likewise.
346         * config/xtensa/unwind-dw2-xtensa.h: Likewise.
347         * coretypes.h: Likewise.
348         * crtstuff.c: Likewise.
349         * defaults.h: Likewise.
350         * dwarf2.h: Likewise.
351         * emutls.c: Likewise.
352         * gbl-ctors.h: Likewise.
353         * gcov-io.h: Likewise.
354         * ginclude/float.h: Likewise.
355         * ginclude/iso646.h: Likewise.
356         * ginclude/stdarg.h: Likewise.
357         * ginclude/stdbool.h: Likewise.
358         * ginclude/stddef.h: Likewise.
359         * ginclude/stdfix.h: Likewise.
360         * ginclude/stdint-gcc.h: Likewise.
361         * ginclude/tgmath.h: Likewise.
362         * gthr-aix.h: Likewise.
363         * gthr-dce.h: Likewise.
364         * gthr-gnat.c: Likewise.
365         * gthr-gnat.h: Likewise.
366         * gthr-lynx.h: Likewise.
367         * gthr-mipssde.h: Likewise.
368         * gthr-nks.h: Likewise.
369         * gthr-posix.c: Likewise.
370         * gthr-posix.h: Likewise.
371         * gthr-posix95.h: Likewise.
372         * gthr-rtems.h: Likewise.
373         * gthr-single.h: Likewise.
374         * gthr-solaris.h: Likewise.
375         * gthr-tpf.h: Likewise.
376         * gthr-vxworks.h: Likewise.
377         * gthr-win32.h: Likewise.
378         * gthr.h: Likewise.
379         * libgcc2.c: Likewise.
380         * libgcc2.h: Likewise.
381         * libgcov.c: Likewise.
382         * tsystem.h: Likewise.
383         * typeclass.h: Likewise.
384         * unwind-c.c: Likewise.
385         * unwind-compat.h: Likewise.
386         * unwind-dw2-fde-compat.c: Likewise.
387         * unwind-dw2-fde-darwin.c: Likewise.
388         * unwind-dw2-fde-glibc.c: Likewise.
389         * unwind-dw2-fde.c: Likewise.
390         * unwind-dw2-fde.h: Likewise.
391         * unwind-dw2.c: Likewise.
392         * unwind-dw2.h: Likewise.
393         * unwind-generic.h: Likewise.
394         * unwind-pe.h: Likewise.
395         * unwind-sjlj.c: Likewise.
396         * unwind.inc: Likewise.
397         * config/arm/neon-gen.ml: Change generated copyright header to
398         refer to version 3 of the GNU General Public License with
399         version 3.1 of the GCC Runtime Library Exception and to point
400         readers at the COPYING3 and COPYING3.RUNTIME files and the
401         FSF's license web page.
402         * config/arm/arm_neon.h: Regenerate.
403
404 2009-04-09  Jakub Jelinek  <jakub@redhat.com>
405
406         * config/cris/cris.md: Change copyright header to refer to version
407         3 of the GNU General Public License.
408         * doc/install.texi2html: Change copyright header to refer to version
409         3 of the GNU General Public License and to point readers at the
410         COPYING3 file and the FSF's license web page.
411         * config/vax/linux.h: Likewise.
412
413 2009-04-09  Paolo Bonzini  <bonzini@gnu.org>
414
415         * config/i386/i386.md (cmpcc): New.
416         * config/i386/sync.md (sync_compare_and_swap*): Set FLAGS_REG.
417         (sync_compare_and_swap_cc*): Delete.
418
419         * config/s390/s390.c (s390_compare_emitted): Remove.
420         (s390_emit_compare): Handle MODE_CC s390_compare_op0 like
421         s390_compare_emitted used to be handled.  Assert that modes match.
422         (s390_emit_compare_and_swap): Use s390_emit_compare, do not
423         refer to sync_compare_and_swap_ccsi.
424         * config/s390/s390.h (s390_compare_emitted): Remove.
425         * config/s390/s390.md (seq): Look for MODE_CC s390_compare_op0
426         instead of s390_compare_emitted.
427         (stack_protect_test, sync_compare_and_swap_cc): Set s390_compare_op0
428         instead of s390_compare_emitted.
429         * config/s390/s390.md (cmpcc): New.
430         (sync_compare_and_swapqi, sync_compare_and_swaphi): Clobber
431         CC_REGNUM, do not pretend it's set.
432         (sync_compare_and_swap_cc*): Delete.
433         * config/s390/predicates.md (cc_reg_operand): New.
434
435         * expr.c (sync_compare_and_swap_cc): Delete.
436         * optabs.h (sync_compare_and_swap_cc): Delete.
437         * optabs.c (prepare_cmp_insn): Ignore which specific CCmode
438         is being used with can_compare_p.
439         (emit_cmp_and_jump_insn_1): Likewise when looking in the optab.
440         (find_cc_set): New.
441         (expand_bool_compare_and_swap): Do not use sync_compare_and_swap_cc,
442         look for a MODE_CC set instead.  Use emit_store_flag.
443         (expand_compare_and_swap_loop): Likewise, with some additional
444         complication to avoid a force_reg when useless.  Use
445         emit_cmp_and_jump_insns.
446         * genopinit.c (optabs): Delete sync_compare_and_swap_cc.
447         * doc/md.texi (sync_compare_and_swap_cc): Merge with
448         sync_compare_and_swap documentation.
449
450 2009-04-09  Jan Hubicka  <jh@suse.cz>
451
452         * except.c (find_prev_try): Break out from ....
453         (duplicate_eh_regions): ... here; properly update prev_try pointers
454         when duplication part of tree.
455         (dump_eh_tree): Improve dumping.
456         (verify_eh_region): New.
457         (verify_eh_tree): Use it.
458
459 2009-04-06  Richard Guenther  <rguenther@suse.de>
460
461         * c-gimplify.c (c_gimplify_expr): Fix the invalid GENERIC
462         &ARRAY addresses by adjusting their types and prepending
463         a conversion.
464         * tree-cfg.c (verify_gimple_assign_single): Verify that
465         addresses are correct.
466
467 2009-04-09  Richard Guenther  <rguenther@suse.de>
468
469         * tree-ssa-ccp.c (maybe_fold_stmt_addition): Move non-constant
470         indices into an array reference if possible.
471         * tree-ssa-forwprop.c (tree_ssa_forward_propagate_single_use_vars):
472         Fold POINTER_PLUS_EXPR statements with invariant address.
473
474 2009-04-09  Alan Modra  <amodra@bigpond.net.au>
475
476         PR target/39634
477         * config.gcc (powerpc64-*-linux*): Always build biarch.
478
479 2009-04-09  Joseph Myers  <joseph@codesourcery.com>
480
481         PR c/39613
482         * c-typeck.c (do_case): If case label is not an INTEGER_CST, fold
483         it and pedwarn if this results in an INTEGER_CST.
484
485 2009-04-08  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
486
487         * doc/install.texi: Update minimum GMP version.  Remove obsolete
488         text in MPFR section.
489
490 2009-04-08  Jakub Jelinek  <jakub@redhat.com>
491
492         * dwarf2out.c (class_scope_p): New static inline.
493         (class_or_namespace_scope_p): Use it.
494         (gen_variable_die): Use DW_TAG_member tag for static data member
495         declarations instead of DW_TAG_variable.
496
497         PR middle-end/39573
498         * omp-low.c (expand_omp_taskreg): Finalize taskreg static local_decls
499         variables.
500
501 2009-04-08  Richard Guenther  <rguenther@suse.de>
502
503         * tree-ssa-sccvn.c (valueize_refs): Do not continue to
504         valueize random data.
505
506 2009-04-08  David Edelsohn  <edelsohn@gnu.org>
507
508         * config.gcc (aix tm_file):  Add aix-stdint.h.
509         (aix tm clause use_gcc_stdint):  Set to wrap.
510         * config/rs6000/aix-stdint.h:  New file.
511         
512 2009-04-08  Richard Guenther  <rguenther@suse.de>
513
514         PR middle-end/36291
515         * tree-dfa.c (add_referenced_var): Do not recurse into
516         global initializers.
517         * tree-ssa-ccp.c (get_symbol_constant_value): Add newly
518         exposed variables.
519         (fold_const_aggregate_ref): Likewise.
520
521 2009-04-08  Paolo Bonzini  <bonzini@gnu.org>
522
523         * recog.c (ordered_comparison_operator): New.
524         * gensupport.c (std_preds): Add it.
525         * doc/md.texi (Machine-Independent Predicates): Document it.
526
527 2009-04-08  Jan Hubicka  <jh@suse.cz>
528
529         * tree-eh.c (cleanup_eh): When not optimizing, do not try EH merging.
530         * function.h (rtl_eh): Remove exception_handler_label_map.
531         * except.c (ehl_hash, ehl_eq, add_ehl_entry,
532         remove_exception_handler_label, for_each_eh_label_1): Remove.
533         (rtl_remove_unreachable_regions): Remove.
534         (convert_from_eh_region_ranges): Do not remove unreachable regions.
535         (find_exception_handler_labels): Don't build the hashtable.
536         (maybe_remove_eh_handler): Remove.
537         (for_each_eh_label): Rewrite to walk the tree.
538         (rest_of_handle_eh): Do not cleanup cfg prior EH construction.
539         * except.h (maybe_remove_eh_handler): Remove.
540         * passes.c (init_optimization_passes): Schedule second EH cleanup
541         before out-of-ssa.
542         * cfgrtl.c (rtl_delete_block, rtl_merge_blocks,
543         cfg_layout_merge_blocks): Do not call maybe_remove_eh_handler.
544
545 2009-04-08  Paolo Bonzini  <bonzini@gnu.org>
546
547         * genoutput.c (validate_optab_operands): New.
548         (gen_insn, gen_expand): Call it.
549
550         * genflags.c (gen_insn): Detect misused iterators.
551         (main): Pass line_no to gen_insn, exit with status 1 on error.
552
553         * genextract.c (line_no): Make global.
554         (VEC_safe_set_locstr): Change assertion to error message.
555         (main): Exit with status 1 on error.
556
557 2009-04-08  Joseph Myers  <joseph@codesourcery.com>
558
559         PR c/39614
560         PR c/39673
561         * c-common.h (C_MAYBE_CONST_EXPR_PRE, C_MAYBE_CONST_EXPR_EXPR,
562         C_MAYBE_CONST_EXPR_INT_OPERANDS, C_MAYBE_CONST_EXPR_NON_CONST,
563         EXPR_INT_CONST_OPERANDS): Remove duplicate definitions.
564         * c-convert.c (convert): Do not call fold on results of conversion
565         functions when the result is a C_MAYBE_CONST_EXPR.
566         * c-parser.c (c_parser_postfix_expression): Do not fold condition
567         of __builtin_choose_expr.
568         * c-typeck.c (remove_c_maybe_const_expr): New.
569         (build_unary_op, build_conditional_expr, build_compound_expr,
570         build_binary_op, c_objc_common_truthvalue_conversion): Call
571         remove_c_maybe_const_expr on any input C_MAYBE_CONST_EXPR with
572         integer operands.
573
574 2009-04-08 Bingfeng Mei <bmei@broadcom.com>
575
576         * fold-const.c (const_binop): Combine two VECTOR_CST under operation 
577         CODE to produce a new one. Add a prototype to use fold_convert_const
578
579 2009-04-08  Danny Smith  <dannysmith@users.sourceforge.net>
580
581         PR bootstrap/39660
582         * config/i386/host-mingw32.c (mingw32_gt_pch_use_address): Don't
583         mix declarations and code.
584
585 2009-04-08  Ben Elliston  <bje@au.ibm.com>
586
587         * gcc.c: Replace `CC' with `GCC' throughout.
588
589 2009-04-07  H.J. Lu  <hongjiu.lu@intel.com>
590
591         * doc/invoke.texi: Document Atom support.
592
593 2009-04-07  Jason Merrill  <jason@redhat.com>
594
595         PR c++/25185
596         * c-common.h, c-common.c: Add flag_pretty_templates.
597         * c-opts.c (c_common_handle_option): Set it.
598         * c.opt: Add -fno-pretty-templates.
599         * doc/invoke.texi (C++ Dialect Options): Likewise.
600
601 2009-04-07  Uros Bizjak  <ubizjak@gmail.com>
602
603         * config/ia64/ia64.c (ia64_builtins): Add IA64_BUILTIN_HUGE_VALQ.
604         (ia64_init_builtins): Handle IA64_BUILTIN_HUGE_VALQ.
605         (ia64_expand_builtin): Likewise.
606
607 2009-04-07  Martin Jambor  <mjambor@suse.cz>
608
609         * tree-ssa-alias.c (refs_may_alias_p_1): Check for
610         is_gimple_min_invariant rather than CONSTANT_CLASS_P so that invariant
611         ADDR_EXPRS are include too.
612
613 2009-04-07  Richard Guenther  <rguenther@suse.de>
614
615         * tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Non-aliased
616         decls are only used if passes as parameters or if they are
617         local statics and the call is not to a builtin.
618         (call_may_clobber_ref_p_1): Likewise.
619
620 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
621
622         * expr.c (do_store_flag): Remove last argument.  Simplify code
623         to avoid duplication of tests already done by can_compare_p.
624         (expand_expr_real_1): Adjust caller.
625
626 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
627
628         * optabs.c (can_compare_p): Test the predicate of a
629         cbranch and cstore pattern.
630
631 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
632
633         * expr.c (convert_move): Use emit_store_flag instead of
634         "emulating" it.
635
636 2009-04-07  Paolo Bonzini  <bonzini@gnu.org>
637
638         * config/i386/i386.c (ix86_compare_emitted): Remove.
639         (ix86_expand_compare, ix86_expand_branch): Handle MODE_CC
640         ix86_compare_op0 like ix86_compare_emitted used to be handled.
641         * config/i386/i386.h (ix86_compare_emitted): Remove.
642         * config/i386/i386.md (stack_protect_test): Set ix86_compare_op0
643         instead of ix86_compare_emitted.
644         * config/i386/sync.md (sync_compare_and_swap_cc): Likewise.
645
646 2009-04-07  Andrew Stubbs  <ams@codesourcery.com>
647
648         * config.gcc (sh-*-*): Add sysroot-suffix.h to tm_file.
649         Add t-sysroot-suffix to tmake_file.
650         * config/print-sysroot-suffix.sh: New file.
651         * config/t-sysroot-suffix: New file.
652
653 2009-04-07  Ben Elliston  <bje@au.ibm.com>
654
655         * libgcc2.c (INFINITY): Use __builtin_huge_val, not __builtin_inf,
656         as the latter produces a warning when the target does not support
657         infinity.
658
659 2009-04-07  Ben Elliston  <bje@au.ibm.com>
660
661         * dfp.c: Replace type punning assignments with memcpy throughout.
662         * Makefile.in (dfp.o-warn): Remove.
663         
664 2009-04-07  Alan Modra  <amodra@bigpond.net.au>
665
666         PR target/39634
667         * config.gcc: Merge powerpc-*-linux* and powerpc64-*-linux*.
668         Include soft-fp/t-softfp after rs6000/t-linux64.
669
670 2009-04-06  Eric Botcazou  <ebotcazou@adacore.com>
671
672         * stor-layout.c (set_sizetype): Use the full precision of their
673         machine mode for bitsize types.
674
675 2009-04-06  H.J. Lu  <hongjiu.lu@intel.com>
676
677         * config/i386/i386.md: Revert 2 accidental checkins.
678
679 2009-04-06  Joey Ye  <joey.ye@intel.com>
680             Xuepeng Guo <xuepeng.guo@intel.com>
681             H.J. Lu  <hongjiu.lu@intel.com>
682
683         Atom pipeline model, tuning and insn selection.
684         * config.gcc (atom): Add atom config options and target.
685
686         * config/i386/atom.md: New.
687
688         * config/i386/i386.c (atom_cost): New cost.
689         (m_ATOM): New macro flag.
690         (initial_ix86_tune_features): Set m_ATOM.
691         (x86_accumulate_outgoing_args): Likewise.
692         (x86_arch_always_fancy_math_387): Likewise.
693         (processor_target): Add Atom cost.
694         (cpu_names): Add Atom cpu name.
695         (override_options): Set Atom ISA.
696         (ix86_issue_rate): New case PROCESSOR_ATOM.
697         (ix86_adjust_cost): Likewise.
698
699         * config/i386/i386.h (TARGET_ATOM): New target macro.
700         (ix86_tune_indices): Add X86_TUNE_OPT_AGU.
701         (TARGET_OPT_AGU): New target option.
702         (target_cpu_default): Add TARGET_CPU_DEFAULT_atom.
703         (processor_type): Add PROCESSOR_ATOM.
704
705         * config/i386/i386.md (cpu): Add new value "atom".
706         (use_carry, movu): New attr.
707         (atom.md): Include atom.md.
708         (adddi3_carry_rex64): Set attr "use_carry".
709         (addqi3_carry): Likewise.
710         (addhi3_carry): Likewise.
711         (addsi3_carry): Likewise.
712         (*addsi3_carry_zext): Likewise.
713         (subdi3_carry_rex64): Likewise.
714         (subqi3_carry): Likewise.
715         (subhi3_carry): Likewise.
716         (subsi3_carry): Likewise.
717         (x86_movdicc_0_m1_rex64): Likewise.
718         (*x86_movdicc_0_m1_se): Likewise.
719         (x86_movsicc_0_m1): Likewise.
720         (*x86_movsicc_0_m1_se): Likewise.
721         (*adddi_1_rex64): Emit add insn as much as possible.
722         (*addsi_1): Likewise.
723         (return_internal): Set atom_unit.
724         (return_internal_long): Likewise.
725         (return_pop_internal): Likewise.
726         (*rcpsf2_sse): Set atom_sse_attr attr.
727         (*qrt<mode>2_sse): Likewise.
728         (*prefetch_sse): Likewise.
729
730         * config/i386/i386-c.c (ix86_target_macros_internal): New case
731         PROCESSOR_ATOM.
732         (ix86_target_macros_internal): Likewise.
733
734         * config/i386/sse.md (cpu): Set attr "atom_sse_attr".
735         (*prefetch_sse_rex): Likewise.
736         (sse_rcpv4sf2): Likewise.
737         (sse_vmrcpv4sf2): Likewise.
738         (sse_sqrtv4sf2): Likewise.
739         (<sse>_vmsqrt<mode>2): Likewise.
740         (sse_ldmxcsr): Likewise.
741         (sse_stmxcsr): Likewise.
742         (*sse_sfence): Likewise.
743         (sse2_clflush): Likewise.
744         (*sse2_mfence): Likewise.
745         (*sse2_lfence): Likewise.
746         (avx_movup<avxmodesuffixf2c><avxmodesuffix>): Set attr "movu".
747         (<sse>_movup<ssemodesuffixf2c>): Likewise.
748         (avx_movdqu<avxmodesuffix>): Likewise.
749         (avx_lddqu<avxmodesuffix>): Likewise.
750         (sse2_movntv2di): Change attr "type" to "ssemov".
751         (sse2_movntsi): Likewise.
752         (rsqrtv8sf2): Change attr "type" to "sseadd".
753         (sse3_addsubv2df3): Set attr "atom_unit".
754         (sse3_h<plusminus_insn>v4sf3): Likewise.
755         (*sse2_pmaddwd): Likewise.
756         (*vec_extractv2di_1_rex64): Likewise.
757         (*vec_extractv2di_1_avx): Likewise.
758         (sse2_psadbw): Likewise.
759         (ssse3_phaddwv8hi3): Likewise.
760         (ssse3_phaddwv4hi3): Likewise.
761         (ssse3_phadddv4si3): Likewise.
762         (ssse3_phadddv2si3): Likewise.
763         (ssse3_phaddswv8hi3): Likewise.
764         (ssse3_phaddswv4hi3): Likewise.
765         (ssse3_phsubwv8hi3): Likewise.
766         (ssse3_phsubwv4hi3): Likewise.
767         (ssse3_phsubdv4si3): Likewise.
768         (ssse3_phsubdv2si3): Likewise.
769         (ssse3_phsubswv8hi3): Likewise.
770         (ssse3_phsubswv4hi3): Likewise.
771         (ssse3_pmaddubsw128): Likewise.
772         (sse3_pmaddubsw: Likewise.
773         (ssse3_palignrti): Likewise.
774         (ssse3_palignrdi): Likewise.
775
776 2009-04-06  Gerald Pfeifer  <gerald@pfeifer.com>
777
778         * doc/install.texi (Specific): Fix two cross-references to MinGW.
779
780 2009-04-06  Richard Guenther  <rguenther@suse.de>
781
782         PR tree-optimization/28868
783         * tree-ssa-pre.c (inserted_phi_names): New bitmap to keep track
784         of which PHI results we inserted.
785         (insert_into_preds_of_block): Record inserted PHIs.
786         (eliminate): Eliminate redundant PHI nodes.
787         (init_pre): Init inserted_phi_names.
788
789 2009-04-06  Richard Guenther  <rguenther@suse.de>
790
791         PR tree-optimization/39643
792         * tree-ssa-ccp.c (ccp_fold): Fold REALPART_EXPRs and
793         IMAGPART_EXPRs of complex constants.
794         (execute_fold_all_builtins): If we folded a call queue
795         TODO_update_address_taken.
796
797 2009-04-06  Jan Hubicka  <jh@suse.cz>
798
799         PR middle-end/39659
800         * except.c (remove_unreachable_regions): Propagate may_contain_throw
801         flag.
802
803 2009-04-06  Andrew Stubbs  <ams@codesourcery.com>
804
805         * config/sh/lib1funcs.asm (ic_invalidate): Move ICBI out of the
806         delay slot.
807         (ic_invalidate_array): Likewise.
808
809 2009-04-06  Hariharan Sandanagobalane <hariharan@picochip.com>
810
811         * calls.c (emit_library_call_value_1): Fix a problem with parameter
812         alignment for library calls.
813
814 2009-04-06  Danny Smith  <dannysmith@users.sourceforge.net>
815
816         * config.gcc (mingw32 tm_file):  Add mingw-stdint.h.
817         (mingw32 tm clause use_gcc_stdint):  Set to wrap.
818         * config/i386/mingw-stdint.h:  New file.
819
820 2009-04-05  Richard Guenther  <rguenther@suse.de>
821
822         PR tree-optimization/39648
823         * tree-ssa-sccvn.c (vn_reference_fold_indirect): Work around
824         our &A vs. &A[0] IL deficiencies.
825
826 2009-04-04  Jan Hubicka  <jh@suse.cz>
827
828         * except.c (sjlj_find_directly_reachable_regions): Be ready for
829         removed toplevel regions.
830         (sjlj_mark_call_sites): Likewise.
831
832 2009-04-04  Dave Korn  <dave.korn.cygwin@gmail.com>
833
834         * config.gcc (cygwin tm_file):  Add cygwin-stdint.h.
835         (cygwin tm clause use_gcc_stdint):  Set to wrap.
836         * config/i386/cygwin-stdint.h:  New file.
837
838 2009-04-04  Richard Guenther  <rguenther@suse.de>
839
840         * Makefile.in (tree-ssa-copy.o): Add $(CFGLOOP_H) dependency.
841         * tree-ssa-copy.c (init_copy_prop): Do not propagate through
842         single-argument PHIs if we are in loop-closed SSA form.
843         * tree-vect-loop-manip.c (slpeel_add_loop_guard): Pass extra guards
844         for the pre-condition.
845         (slpeel_tree_peel_loop_to_edge): Likewise.
846         (vect_build_loop_niters): Take an optional sequence to append stmts.
847         (vect_generate_tmps_on_preheader): Likewise.
848         (vect_do_peeling_for_loop_bound): Take extra guards for the
849         pre-condition.
850         (vect_do_peeling_for_alignment): Adjust.  Unconditionally apply
851         the cost model check.
852         (vect_loop_versioning): Take stmt and stmt list to put pre-condition
853         guards if we are going to peel.  Do not apply versioning in that case.
854         * tree-vectorizer.h (vect_loop_versioning): Adjust declaration.
855         (vect_do_peeling_for_loop_bound): Likewise.
856         * tree-vect-loop.c (vect_transform_loop): If we are peeling for
857         loop bound only record extra pre-conditions, do not apply loop
858         versioning.
859
860 2009-04-04  Richard Guenther  <rguenther@suse.de>
861
862         * tree-ssa-operands.c (pop_stmt_changes): Remove automatic
863         renaming code.
864
865 2009-04-04  Jan Hubicka  <jh@suse.cz>
866
867         * tree-ssa-uncprop.c (associate_equivalences_with_edges): Use
868         last_basic_block for size of bb->index indexed array.
869         * bt-load.c (compute_defs_uses_and_gen, compute_kill,
870         compute_out, link_btr_uses, build_btr_def_use_webs,
871         build_btr_def_use_webs, migrate_btr_defs): Likewise.
872
873 2009-04-04  Jan Hubicka  <jh@suse.cz>
874
875         * except.c (remove_eh_handler_and_replace): Break out from ...
876         (remove_eh_handler): ... here.
877         (bring_to_root): New function.
878         (remove_unreachable_regions): Collect MUST_NOT_THROW, unify runtime
879         handled ones, bring others to root of tree.
880
881 2009-04-04  Jan Hubicka  <jh@suse.cz>
882
883         * tree-eh.c (tree_empty_eh_handler_p): Pattern match more curefully.
884         (all_phis_safe_to_merge): New function.
885         (update_info): New structure.
886         (make_eh_edge_and_update_phi, update_eh_edges): New functions.
887         (cleanup_empty_eh): Update SSA if possible.
888
889 2009-04-04  Richard Guenther  <rguenther@suse.de>
890
891         * tree-ssa.c (verify_ssa): With -O0 we do not need VOPs.
892         * tree-ssa-operands.c (append_vdef): Do not append VOPs at -O0.
893         (append_vuse): Likewise.
894
895 2009-04-04  Jakub Jelinek  <jakub@redhat.com>
896
897         * unwind-dw2.h (_Unwind_FrameState): Add REG_UNDEFINED enum value.
898         * unwind-dw2.c (execute_cfa_program): Set how to REG_UNDEFINED
899         instead of REG_UNSAVED for DW_CFA_undefined.
900         (uw_update_context_1): Handle REG_UNDEFINED the same as REG_UNSAVED.
901         (uw_update_context): If RA column is REG_UNDEFINED, mark it as
902         outermost frame.
903
904 2009-04-04  Richard Earnshaw  <rearnsha@arm.com>
905
906         PR target/39501
907         * arm.md (movsfcc): Disable if not TARGET_HARD_FLOAT.
908         * testsuite/gcc.c-torture/execute/pr39501.c: New file.
909         * testsuite/gcc.c-torture/execute/pr39501.x: New file.
910
911 2009-04-04  Richard Guenther  <rguenther@suse.de>
912
913         PR tree-optimization/8781
914         PR tree-optimization/37892
915         * tree-ssa-sccvn.h (vn_reference_fold_indirect): Declare.
916         * tree-ssa-sccvn.c (vn_reference_fold_indirect): New function.
917         (valueize_refs): Call it for *& valueizations.
918         (shared_reference_ops_from_ref): Rename to ...
919         (valueize_shared_reference_ops_from_ref): ... this and valueize.
920         (shared_reference_ops_from_call): Rename to ...
921         (valueize_shared_reference_ops_from_call): ... this and valueize.
922         (vn_reference_lookup): Update.
923         (visit_reference_op_call): Likewise.
924         * tree-ssa-pre.c (phi_translate_1): Fold *&.
925         (eliminate): Value-replace the call address in call statements.
926
927 2009-04-04  Richard Guenther  <rguenther@suse.de>
928
929         PR tree-optimization/39636
930         * tree-ssa-forwprop.c
931         (forward_propagate_addr_into_variable_array_index): Check for
932         GIMPLE_ASSIGN before accessing the rhs code.
933
934 2009-04-03  Jason Merrill  <jason@redhat.com>
935
936         * stor-layout.c (set_sizetype): Set TYPE_CANONICAL.
937
938 2009-04-03  Steve Ellcey  <sje@cup.hp.com>
939
940         * config/ia64/ia64.md (extendsfdf2, extendsfxf2, extenddfxf2,
941         truncdfsf2, truncxfsf2, truncxfdf2, floatdixf2, fix_truncsfdi2,
942         fix_truncdfdi2, fix_truncxfdi2, fix_truncxfdi2_alts, floatunsdisf2,
943         floatunsdidf2, floatunsdixf2, fixuns_truncsfdi2, fixuns_truncdfdi2,
944         fixuns_truncxfdi2, fixuns_truncxfdi2_alts, divsi3_internal,
945         smuldi3_highpart, umuldi3_highpart, ctzdi2, *getf_exp_xf,
946         divdi3_internal_lat, divdi3_internal_thr, mulditi3, *mulditi3_internal,
947         umulditi3, *umulditi3_internal, addsf3, mulsf3, abssf2, negsf2,
948         *nabssf2, sminsf3, smaxsf3, *maddsf4, *msubsf4, *nmulsf3, *nmaddsf4,
949         *nmaddsf4_alts, divsf3, *sqrt_approx, sqrtsf2, sqrtsf2_internal_thr,
950         adddf3, *adddf3_trunc, muldf3, *muldf3_trunc, absdf2, negdf2, *nabsdf2,
951         smindf3, smaxdf3, *madddf4, *madddf4_trunc, *msubdf4, *msubdf4_trunc,
952         *nmuldf3, *nmuldf3_trunc, *nmadddf4, *nmadddf4_alts, *nmadddf4_truncsf,
953         *nmadddf4_truncsf_alts, divdf3, sqrtdf2, sqrtdf2_internal_thr, divxf3,
954         sqrtxf2, sqrtxf2_internal_thr, *recip_approx):
955         Use fr_reg_or_fp01_operand instead of fr_register_operand
956
957         * config/ia64/div.md (extend<mode>rf2, truncrf<mode>2,
958         recip_approx_rf, divsf3_internal_thr, divsf3_internal_lat,
959         divdf3_internal_thr, divdf3_internal_lat divxf3_internal): Ditto.
960
961 2009-04-03  Vladimir Makarov  <vmakarov@redhat.com>
962
963         PR rtl-optimization/39607
964         PR rtl-optimization/39631
965
966         Revert:
967         
968         2009-03-30  Vladimir Makarov  <vmakarov@redhat.com>
969         * reload.c (push_reload, find_dummy_reload): Use df_get_live_out
970         instead of DF_LR_OUT.
971         * ira-lives.c (process_bb_node_lives): Ditto.
972         * ira-color.c (ira_loop_edge_freq): Use df_get_live_{out,in}
973         instead of DF_LR_{OUT,IN}.
974         * ira-emit.c (generate_edge_moves, add_ranges_and_copies): Ditto.
975         * ira-build.c (create_bb_allocnos, create_loop_allocnos): Ditto.
976
977 2009-04-03  Steven Bosscher  <steven@gcc.gnu.org>
978
979         * omp-low.c (pass_expand_omp): Don't claim to provide PROP_gimple_lomp.
980         (execute_lower_omp): Always run but take the short way out if -fopenmp
981         is not given.
982         (gate_lower_omp): Remove, forcing the pass manager to always run the
983         pass and always set PROP_gimple_lomp.
984         (pass_lower_omp): Remove gate function.
985         * matrix-reorg.c (pass_ipa_matrix_reorg): Don't claim to provide
986         PROP_trees.  Instead, require it.
987         * ipa-cp.c (pass_ipa_cp): Likewise.
988         * ipa-inline.c (pass_early_inline): Don't claim to provide PROP_cfg.
989         (pass_ipa_early_inline, pass_inline_parameters, pass_ipa_inline): Idem.
990         * tree-profile.c (pass_tree_profile): Don't claim to provide PROP_cfg
991         and PROP_gimple_leh.
992
993 2009-04-03  Richard Guenther  <rguenther@suse.de>
994
995         PR middle-end/13146
996         PR tree-optimization/23940
997         PR tree-optimization/33237
998         PR middle-end/33974
999         PR middle-end/34093
1000         PR tree-optimization/36201
1001         PR tree-optimization/36230
1002         PR tree-optimization/38049
1003         PR tree-optimization/38207
1004         PR tree-optimization/38230
1005         PR tree-optimization/38301
1006         PR tree-optimization/38585
1007         PR middle-end/38895
1008         PR tree-optimization/38985
1009         PR tree-optimization/39299
1010         * tree-ssa-structalias.h: Remove.
1011         * tree-ssa-operands.h (NULL_USE_OPERAND_P): Make of type use_operand_p.
1012         (NULL_DEF_OPERAND_P): Make of type def_operand_p.
1013         (struct vuse_element_d): Remove.
1014         (struct vuse_vec_d): Likewise.
1015         (VUSE_VECT_NUM_ELEM, VUSE_VECT_ELEMENT_NC, VUSE_ELEMENT_PTR_NC,
1016         VUSE_ELEMENT_VAR_NC, VUSE_VECT_ELEMENT, VUSE_ELEMENT_PTR,
1017         SET_VUSE_VECT_ELEMENT, SET_VUSE_ELEMENT_VAR, SET_VUSE_ELEMENT_PTR,
1018         VUSE_ELEMENT_VAR): Likewise.
1019         (struct voptype_d): Likewise.
1020         (NUM_VOP_FREE_BUCKETS): Likewise.
1021         (struct ssa_operands): Remove vop_free_buckets and mpt_table fields.
1022         (struct stmt_operands_d): Remove.
1023         (VUSE_OP_PTR, VUSE_OP, SET_VUSE_OP, VUSE_NUM, VUSE_VECT,
1024         VDEF_RESULT_PTR, VDEF_RESULT, VDEF_OP_PTR, VDEF_OP, SET_VDEF_OP,
1025         VDEF_NUM, VDEF_VECT): Likewise.
1026         (copy_virtual_operands): Remove.
1027         (operand_build_cmp): Likewise.
1028         (create_ssa_artificial_load_stmt): Likewise.
1029         (enum ssa_op_iter_type): Remove ssa_op_iter_vdef.
1030         (struct ssa_operand_iterator_d): Remove vuses, vdefs, mayusesm
1031         vuse_index and mayuse_index members.  Pack and move done and iter_type
1032         members to the front.
1033         (SSA_OP_VMAYUSE): Remove.
1034         (SSA_OP_VIRTUAL_USES): Adjust.
1035         (FOR_EACH_SSA_VDEF_OPERAND): Remove.
1036         (unlink_stmt_vdef): Declare.
1037         (add_to_addressable_set): Remove.
1038         * tree-vrp.c (stmt_interesting_for_vrp): Adjust.
1039         (vrp_visit_stmt): Likewise.
1040         * doc/tree-ssa.texi (Alias analysis): Update.
1041         * doc/invoke.texi (max-aliased-vops): Remove docs.
1042         (avg-aliased-vops): Likewise.
1043         * tree-into-ssa.c (syms_to_rename): Remove.
1044         (need_to_update_vops_p): Likewise.
1045         (need_to_initialize_update_ssa_p): Rename to ...
1046         (update_ssa_initialized_fn): ... this.  Track function we are
1047         initialized for.
1048         (symbol_marked_for_renaming): Simplify.
1049         (add_new_name_mapping): Do not set need_to_update_vops_p.
1050         (dump_currdefs): Use SYMS_TO_RENAME.
1051         (rewrite_update_stmt): Always walk all uses/defs.
1052         (dump_update_ssa): Adjust.
1053         (init_update_ssa): Take function argument.  Track what we are
1054         initialized for.
1055         (delete_update_ssa): Reset SYMS_TO_RENAME and update_ssa_initialized_fn.
1056         (create_new_def_for): Initialize for cfun, assert we are initialized
1057         for cfun.
1058         (mark_sym_for_renaming): Simplify.
1059         (mark_set_for_renaming): Do not initialize update-ssa.
1060         (need_ssa_update_p): Simplify.  Take function argument.
1061         (name_mappings_registered_p): Assert we ask for the correct function.
1062         (name_registered_for_update_p): Likewise.
1063         (ssa_names_to_replace): Likewise.
1064         (release_ssa_name_after_update_ssa): Likewise.
1065         (update_ssa): Likewise.  Use SYMS_TO_RENAME.
1066         (dump_decl_set): Do not print a newline.
1067         (debug_decl_set): Do it here.
1068         (dump_update_ssa): And here.
1069         * tree-ssa-loop-im.c (move_computations): Adjust.
1070         (movement_possibility): Likewise.
1071         (determine_max_movement): Likewise.
1072         (gather_mem_refs_stmt): Likewise.
1073         * tree-dump.c (dequeue_and_dump): Do not handle SYMBOL_MEMORY_TAG
1074         or NAME_MEMORY_TAG.
1075         * tree-complex.c (update_all_vops): Remove.
1076         (expand_complex_move): Adjust.
1077         * tree-ssa-loop-niter.c (chain_of_csts_start): Use NULL_TREE.
1078         Simplify test for memory referencing statement.  Exclude
1079         non-invariant ADDR_EXPRs.
1080         * tree-pretty-print.c (dump_generic_node): Do not handle memory tags.
1081         * tree-loop-distribution.c (generate_memset_zero): Adjust.
1082         (rdg_flag_uses): Likewise.
1083         * tree-tailcall.c (suitable_for_tail_opt_p): Remove memory-tag
1084         related code.
1085         (tree_optimize_tail_calls_1): Also split the
1086         edge from the entry block if we have degenerate PHI nodes in
1087         the first basic block.
1088         * tree.c (init_ttree): Remove memory-tag related code.
1089         (tree_code_size): Likewise.
1090         (tree_node_structure): Likewise.
1091         (build7_stat): Re-write to be build6_stat.
1092         * tree.h (MTAG_P, TREE_MEMORY_TAG_CHECK, TMR_TAG): Remove.
1093         (SSA_VAR_P): Adjust.
1094         (struct tree_memory_tag): Remove.
1095         (struct tree_memory_partition_tag): Likewise.
1096         (union tree_node): Adjust.
1097         (build7): Re-write to be build6.
1098         * tree-pass.h (pass_reset_cc_flags): Remove.
1099         (TODO_update_address_taken): New flag.
1100         (pass_simple_dse): Remove.
1101         * ipa-cp.c (ipcp_update_callgraph): Update SSA form.
1102         * params.h (MAX_ALIASED_VOPS): Remove.
1103         (AVG_ALIASED_VOPS): Likewise.
1104         * omp-low.c (expand_omp_taskreg): Update SSA form.
1105         * tree-ssa-dse.c (dse_optimize_stmt): Properly query if the rhs
1106         aliases the lhs in a copy stmt.
1107         * tree-ssa-dse.c (struct address_walk_data): Remove.
1108         (memory_ssa_name_same): Likewise.
1109         (memory_address_same): Likewise.
1110         (get_kill_of_stmt_lhs): Likewise.
1111         (dse_possible_dead_store_p): Simplify, use the oracle.  Handle
1112         unused stores.  Look through PHI nodes into post-dominated regions.
1113         (dse_optimize_stmt): Simplify.  Properly remove stores.
1114         (tree_ssa_dse): Compute dominators.
1115         (execute_simple_dse): Remove.
1116         (pass_simple_dse): Likewise.
1117         * ipa-reference.c (scan_stmt_for_static_refs): Open-code
1118         gimple_loaded_syms and gimple_stored_syms computation.
1119         * toplev.c (dump_memory_report): Dump alias and pta stats.
1120         * tree-ssa-sccvn.c (vn_reference_compute_hash): Simplify.
1121         (vn_reference_eq): Likewise.
1122         (vuses_to_vec, copy_vuses_from_stmt, vdefs_to_vec,
1123         copy_vdefs_from_stmt, shared_lookup_vops, shared_vuses_from_stmt,
1124         valueize_vuses): Remove.
1125         (get_def_ref_stmt_vuses): Simplify.  Rename to ...
1126         (get_def_ref_stmt_vuse): ... this.
1127         (vn_reference_lookup_2): New function.
1128         (vn_reference_lookup_pieces): Use walk_non_aliased_vuses for
1129         walking equivalent vuses.  Simplify.
1130         (vn_reference_lookup): Likewise.
1131         (vn_reference_insert): Likewise.
1132         (vn_reference_insert_pieces): Likewise.
1133         (visit_reference_op_call): Simplify.
1134         (visit_reference_op_load): Likewise.
1135         (visit_reference_op_store): Likewise.
1136         (init_scc_vn): Remove shared_lookup_vuses initialization.
1137         (free_scc_vn): Remove shared_lookup_vuses freeing.
1138         (sort_vuses, sort_vuses_heap): Remove.
1139         (get_ref_from_reference_ops): Export.
1140         * tree-ssa-sccvn.h (struct vn_reference_s): Replace vuses
1141         vector with single vuse pointer.
1142         (vn_reference_lookup_pieces, vn_reference_lookup,
1143         vn_reference_insert, vn_reference_insert_pieces): Adjust prototypes.
1144         (shared_vuses_from_stmt): Remove.
1145         (get_ref_from_reference_ops): Declare.
1146         * tree-ssa-loop-manip.c (slpeel_can_duplicate_loop_p): Adjust.
1147         * tree-ssa-copyrename.c (copy_rename_partition_coalesce): Remove
1148         memory-tag related code.
1149         * tree-ssa-ccp.c (get_symbol_constant_value): Remove memory-tag code.
1150         (likely_value): Add comment, skip static-chain of call statements.
1151         (surely_varying_stmt_p): Adjust.
1152         (gimplify_and_update_call_from_tree): Likewise.
1153         (execute_fold_all_builtins): Do not rebuild alias info.
1154         (gimplify_and_update_call_from_tree): Properly update VOPs.
1155         * tree-ssa-loop-ivopts.c (get_ref_tag): Remove.
1156         (copy_ref_info): Remove memory-tag related code.
1157         * tree-call-cdce.c (tree_call_cdce): Rename the VOP.
1158         * ipa-pure-const.c (check_decl): Remove memory-tag related code.
1159         (check_stmt): Open-code gimple_loaded_syms and gimple_stored_syms
1160         computation.
1161         * tree-ssa-dom.c (gimple_p): Remove typedef.
1162         (eliminate_redundant_computations): Adjust.
1163         (record_equivalences_from_stmt): Likewise.
1164         (avail_expr_hash): Likewise.
1165         (avail_expr_eq): Likewise.
1166         * tree-ssa-propagate.c (update_call_from_tree): Properly update VOPs.
1167         (stmt_makes_single_load): Likewise.
1168         (stmt_makes_single_store): Likewise.
1169         * tree-ssa-alias.c: Rewrite completely.
1170         (debug_memory_partitions, dump_mem_ref_stats, debug_mem_ref_stats,
1171         debug_mem_sym_stats, dump_mem_sym_stats_for_var,
1172         debug_all_mem_sym_stats, debug_mp_info, update_mem_sym_stats_from_stmt,
1173         delete_mem_ref_stats, create_tag_raw, dump_points_to_info,
1174         dump_may_aliases_for, debug_may_aliases_for, new_type_alias):
1175         Remove public functions.
1176         (pass_reset_cc_flags): Remove.
1177         (pass_build_alias): Move ...
1178         * tree-ssa-structalias.c (pass_build_alias): ... here.
1179         * tree-ssa-alias.c (may_be_aliased): Move ...
1180         * tree-flow-inline.h (may_be_aliased): ... here.
1181         tree-ssa-alias.c (struct count_ptr_d, count_ptr_derefs,
1182         count_uses_and_derefs): Move ...
1183         * gimple.c: ... here.
1184         * gimple.h (count_uses_and_derefs): Declare.
1185         * tree-ssa-alias.c (dump_alias_stats, ptr_deref_may_alias_global_p,
1186         ptr_deref_may_alias_decl_p, ptr_derefs_may_alias_p,
1187         same_type_for_tbaa, nonaliasing_component_refs_p, decl_refs_may_alias_p,
1188         indirect_ref_may_alias_decl_p, indirect_refs_may_alias_p,
1189         ref_maybe_used_by_call_p, ref_maybe_used_by_stmt_p,
1190         call_may_clobber_ref_p, stmt_may_clobber_ref_p, maybe_skip_until,
1191         get_continuation_for_phi, walk_non_aliased_vuses, walk_aliased_vdefs):
1192         New functions.
1193         * tree-dfa.c (refs_may_alias_p): Move ...
1194         * tree-ssa-alias.c (refs_may_alias_p): ... here.  Extend.
1195         * tree-ssa-alias.h: New file.
1196         * tree-ssa-sink.c (is_hidden_global_store): Adjust.
1197         (statement_sink_location): Likewise.
1198         * opts.c (decode_options): Do not adjust max-aliased-vops or
1199         avg-aliased-vops values.
1200         * timevar.def (TV_TREE_MAY_ALIAS): Remove.
1201         (TV_CALL_CLOBBER): Likewise.
1202         (TV_FLOW_SENSITIVE): Likewise.
1203         (TV_FLOW_INSENSITIVE): Likewise.
1204         (TV_MEMORY_PARTITIONING): Likewise.
1205         (TV_ALIAS_STMT_WALK): New timevar.
1206         * tree-ssa-loop-ivcanon.c (empty_loop_p): Adjust.
1207         * tree-ssa-address.c (create_mem_ref_raw): Use build6.
1208         (get_address_description): Remove memory-tag related code.
1209         * tree-ssa-ifcombine.c (bb_no_side_effects_p): Adjust.
1210         * treestruct.def (TS_MEMORY_TAG, TS_MEMORY_PARTITION_TAG): Remove.
1211         * tree-eh.c (cleanup_empty_eh): Do not leave stale SSA_NAMEs
1212         and immediate uses in statements.  Document.
1213         * gimple-pretty-print.c (dump_gimple_mem_ops): Adjust.
1214         (dump_symbols): Remove.
1215         (dump_gimple_mem_ops): Do not dump loaded or stored syms.
1216         * alias.c (get_deref_alias_set): New function split out from ...
1217         (get_alias_set): ... here.
1218         * alias.h (get_deref_alias_set): Declare.
1219         * tree-vect-data-refs.c (vect_create_data_ref_ptr): Remove unused
1220         type parameter.  Remove restrict pointer handling.  Create a
1221         ref-all pointer in case type-based alias sets do not conflict.
1222         (vect_analyze_data_refs): Remove SMT related code.
1223         * tree-vect-stmts.c (vectorizable_store): Re-instantiate TBAA assert.
1224         (vectorizable_load): Likewise.
1225         * tree-data-ref.h (struct dr_alias): Remove symbol_tag field.
1226         (DR_SYMBOL_TAG, DR_VOPS): Remove.
1227         * tree-data-ref.c (dr_may_alias_p): Use the alias-oracle.
1228         Ignore vops and SMTs.
1229         (dr_analyze_alias): Likewise..
1230         (free_data_ref): Likewise.
1231         (create_data_ref): Likewise.
1232         (analyze_all_data_dependences): Likewise.
1233         (get_references_in_stmt): Adjust.
1234         * tree-flow-inline.h (gimple_aliases_computed_p,
1235         gimple_addressable_vars, gimple_call_clobbered_vars,
1236         gimple_call_used_vars, gimple_global_var, may_aliases, memory_partition,
1237         factoring_name_p, mark_call_clobbered, clear_call_clobbered,
1238         compare_ssa_operands_equal, symbol_mem_tag, set_symbol_mem_tag,
1239         gimple_mem_ref_stats): Remove.
1240         (gimple_vop): New function.
1241         (op_iter_next_use): Remove vuses and mayuses cases.
1242         (op_iter_next_def): Remove vdefs case.
1243         (op_iter_next_tree): Remove vuses, mayuses and vdefs cases.
1244         (clear_and_done_ssa_iter): Do not set removed fields.
1245         (op_iter_init): Likewise.  Skip vuse and/or vdef if requested.
1246         Assert we are not iterating over vuses or vdefs if not also
1247         iterating over uses or defs.
1248         (op_iter_init_use): Likewise.
1249         (op_iter_init_def): Likewise.
1250         (op_iter_next_vdef): Remove.
1251         (op_iter_next_mustdef): Likewise.
1252         (op_iter_init_vdef): Likewise.
1253         (compare_ssa_operands_equal): Likewise.
1254         (link_use_stmts_after): Handle vuse operand.
1255         (is_call_used): Use is_call_clobbered.
1256         (is_call_clobbered): Global variables are always call clobbered,
1257         query the call-clobbers bitmap.
1258         (mark_call_clobbered): Ignore global variables.
1259         (clear_call_clobbered): Likewise.
1260         * tree-ssa-coalesce.c (create_outofssa_var_map): Adjust
1261         virtual operands sanity check.
1262         * tree.def (NAME_MEMORY_TAG, SYMBOL_MEMORY_TAG, MEMORY_PARTITION_TAG):
1263         Remove.
1264         (TARGET_MEM_REF): Remove TMR_TAG operand.
1265         * tree-dfa.c (add_referenced_var): Initialize call-clobber state.
1266         Remove call-clobber related code.
1267         (remove_referenced_var): Likewise.  Do not clear mpt or symbol_mem_tag.
1268         (dump_variable): Do not dump SMTs, memory stats, may-aliases or
1269         partitions or escape reason.
1270         (get_single_def_stmt, get_single_def_stmt_from_phi,
1271         get_single_def_stmt_with_phi): Remove.
1272         (dump_referenced_vars): Tidy.
1273         (get_ref_base_and_extent): Allow bare decls.
1274         (collect_dfa_stats): Adjust.
1275         * graphite.c (rename_variables_in_stmt): Adjust.
1276         (graphite_copy_stmts_from_block): Likewise.
1277         (translate_clast): Likewise.
1278         * tree-ssa-pre.c (struct bb_bitmap_sets): Add expr_dies bitmap.
1279         (EXPR_DIES): New.
1280         (translate_vuse_through_block): Use the oracle.
1281         (phi_translate_1): Adjust.
1282         (value_dies_in_block_x): Use the oracle.  Cache the outcome
1283         in EXPR_DIES.
1284         (valid_in_sets): Check if the VUSE for
1285         a REFERENCE is available.
1286         (eliminate): Do not remove stmts during elimination,
1287         instead queue and remove them afterwards.
1288         (do_pre): Do not rebuild alias info.
1289         (pass_pre): Run TODO_rebuild_alias before PRE.
1290         * tree-ssa-live.c (remove_unused_locals): Remove memory-tag code.
1291         * tree-sra.c (sra_walk_function): Use gimple_references_memory_p.
1292         (mark_all_v_defs_stmt): Remove.
1293         (mark_all_v_defs_seq): Adjust.
1294         (sra_replace): Likewise.
1295         (scalarize_use): Likewise.
1296         (scalarize_copy): Likewise.
1297         (scalarize_init): Likewise.
1298         (scalarize_ldst): Likewise.
1299         (todoflags): Remove.
1300         (tree_sra): Do not rebuild alias info.
1301         (tree_sra_early): Adjust.
1302         (pass_sra): Run TODO_update_address_taken before SRA.
1303         * tree-predcom.c (set_alias_info): Remove.
1304         (prepare_initializers_chain): Do not call it.
1305         (mark_virtual_ops_for_renaming): Adjust.
1306         (mark_virtual_ops_for_renaming_list): Remove.
1307         (initialize_root_vars): Adjust.
1308         (initialize_root_vars_lm): Likewise.
1309         (prepare_initializers_chain): Likewise.
1310         * tree-ssa-copy.c (may_propagate_copy): Remove memory-tag related code.
1311         (may_propagate_copy_into_stmt): Likewise.
1312         (merge_alias_info): Do nothing for now.
1313         (propagate_tree_value_into_stmt): Adjust.
1314         (stmt_may_generate_copy): Likewise.
1315         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr): Do
1316         not mark symbols for renaming.
1317         (forward_propagate_addr_expr): Match up push/pop_stmt_changes
1318         with the same statement, make sure to update the new pointed-to one.
1319         * tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not copy
1320         call statements, do not mark symbols for renaming.
1321         (mark_operand_necessary): Dump something.
1322         (ref_may_be_aliased): New function.
1323         (mark_aliased_reaching_defs_necessary_1): New helper function.
1324         (mark_aliased_reaching_defs_necessary): Likewise.
1325         (mark_all_reaching_defs_necessary_1): Likewise.
1326         (mark_all_reaching_defs_necessary): Likewise.
1327         (propagate_necessity): Do not process virtual PHIs.  For
1328         non-aliased loads mark all reaching definitions as necessary.
1329         For aliased loads and stores mark the immediate dominating
1330         aliased clobbers as necessary.
1331         (visited): New global static.
1332         (perform_tree_ssa_dce): Free visited bitmap after propagating
1333         necessity.
1334         (remove_dead_phis): Perform simple dead virtual PHI removal.
1335         (remove_dead_stmt): Properly unlink virtual operands when
1336         removing stores.
1337         (eliminate_unnecessary_stmts): Schedule PHI removal after
1338         stmt removal.
1339         * tree-ssa-ter.c (is_replaceable_p): Adjust.
1340         (process_replaceable): Likewise.
1341         (find_replaceable_in_bb): Likewise.
1342         * tree-ssa.c (verify_ssa_name): Verify all VOPs are
1343         based on the single gimple vop.
1344         (verify_flow_insensitive_alias_info): Remove.
1345         (verify_flow_sensitive_alias_info): Likewise.
1346         (verify_call_clobbering): Likewise.
1347         (verify_memory_partitions): Likewise.
1348         (verify_alias_info): Likewise.
1349         (verify_ssa): Adjust..
1350         (execute_update_addresses_taken): Export.  Update SSA
1351         manually.  Optimize only when optimizing.  Use a local bitmap.
1352         (pass_update_address_taken): Remove TODO_update_ssa, add
1353         TODO_dump_func.
1354         (pass_update_address_taken): Just use TODO_update_address_taken.
1355         (init_tree_ssa): Do not initialize addressable_vars.
1356         (verify_ssa): Verify new VUSE / VDEF properties.
1357         Verify that all stmts definitions have the stmt as SSA_NAME_DEF_STMT.
1358         Do not call verify_alias_info.
1359         (delete_tree_ssa): Clear the VUSE, VDEF operands.
1360         Do not free the loaded and stored syms bitmaps.  Reset the escaped
1361         and callused solutions.  Do not free addressable_vars.
1362         Remove memory-tag related code.
1363         (warn_uninitialized_var): Aliases are always available.
1364         * tree-ssa-loop-prefetch.c (gather_memory_references): Adjust.
1365         * lambda-code.c (can_put_in_inner_loop): Adjust.
1366         (can_put_after_inner_loop): Likewise.
1367         (perfect_nestify): Likewise.
1368         * tree-vect-stmts.c (vect_stmt_relevant_p): Adjust.
1369         (vect_gen_widened_results_half): Remove CALL_EXPR handling.
1370         (vectorizable_conversion): Do not mark symbols for renaming.
1371         * tree-inline.c (remap_gimple_stmt): Clear VUSE/VDEF.
1372         (expand_call_inline): Unlink the calls virtual operands before
1373         replacing it.
1374         (tree_function_versioning): Do not call update_ssa if we are not
1375         updating clones.  Simplify.
1376         * tree-ssa-phiprop.c (phivn_valid_p): Adjust.
1377         (propagate_with_phi): Likewise..
1378         * tree-outof-ssa.c (create_temp): Remove memory tag and call
1379         clobber code.  Assert we are not aliased or global.
1380         * tree-flow.h: Include tree-ssa-alias.h
1381         (enum escape_type): Remove.
1382         (struct mem_sym_stats_d): Likewise.
1383         (struct mem_ref_stats_d): Likewise.
1384         (struct gimple_df): Add vop member.  Remove global_var,
1385         call_clobbered_vars, call_used_vars, addressable_vars,
1386         aliases_compted_p and mem_ref_stats members.  Add syms_to_rename,
1387         escaped and callused members.
1388         (struct ptr_info_def): Remove all members, add points-to solution
1389         member pt.
1390         (struct var_ann_d): Remove in_vuse_list, in_vdef_list,
1391         call_clobbered, escape_mask, mpt and symbol_mem_tag members.
1392         * Makefile.in (TREE_FLOW_H): Add tree-ssa-alias.h.
1393         (tree-ssa-structalias.o): Remove tree-ssa-structalias.h.
1394         (tree-ssa-alias.o): Likewise.
1395         (toplev.o): Add tree-ssa-alias.h
1396         (GTFILES): Remove tree-ssa-structalias.h, add tree-ssa-alias.h.
1397         * gimple.c (gimple_set_bb): Fix off-by-one error.
1398         (is_gimple_reg): Do not handle memory tags.
1399         (gimple_copy): Also copy virtual operands.
1400         Delay updating the statement.  Do not reset loaded and stored syms.
1401         (gimple_set_stored_syms): Remove.
1402         (gimple_set_loaded_syms): Likewise.
1403         (gimple_call_copy_skip_args): Copy the virtual operands
1404         and mark the new statement modified.
1405         * tree-ssa-structalias.c (may_alias_p): Remove.
1406         (set_uids_in_ptset): Take the alias set to prune with as
1407         parameter.  Fold in the alias test of may_alias_p.
1408         (compute_points_to_sets): Compute whether a ptr is dereferenced
1409         in a local sbitmap.
1410         (process_constraint): Deal with &ANYTHING on the lhs, reject all
1411         other ADDRESSOF constraints on the lhs.
1412         (get_constraint_for_component_ref): Assert that we don't get
1413         ADDRESSOF constraints from the base of the reference.
1414         Properly generate UNKNOWN_OFFSET for DEREF if needed.
1415         (struct variable_info): Remove collapsed_to member.
1416         (get_varinfo_fc): Remove.
1417         (new_var_info): Do not set collapsed_to.
1418         (dump_constraint): Do not follow cycles.
1419         (dump_constraint_graph): Likewise.
1420         (build_pred_graph): Likewise.
1421         (build_succ_graph): Likewise.
1422         (rewrite_constraints): Likewise.
1423         (do_simple_structure_copy): Remove.
1424         (do_rhs_deref_structure_copy): Remove.
1425         (do_lhs_deref_structure_copy): Remove.
1426         (collapse_rest_of_var): Remove.
1427         (do_structure_copy): Re-implement.
1428         (pta_stats): New global variable.
1429         (dump_pta_stats): New function.
1430         (struct constraint_expr): Make offset signed.
1431         (UNKNOWN_OFFSET): Define special value.
1432         (dump_constraint): Dump UNKNOWN_OFFSET as UNKNOWN.
1433         (solution_set_expand): New helper function split out from ...
1434         (do_sd_constraint): ... here.
1435         (solution_set_add): Handle UNKNOWN_OFFSET.  Handle negative offsets.
1436         (do_ds_constraint): Likewise.
1437         (do_sd_constraint): Likewise.  Do not special-case ESCAPED = *ESCAPED
1438         and CALLUSED = *CALLUSED.
1439         (set_union_with_increment): Make inc argument signed.
1440         (type_safe): Remove.
1441         (get_constraint_for_ptr_offset): Handle unknown and negative
1442         constant offsets.
1443         (first_vi_for_offset): Handle offsets before start.  Bail
1444         out early for offsets beyond the variable extent.
1445         (first_or_preceding_vi_for_offset): New function.
1446         (init_base_vars): Add ESCAPED = ESCAPED + UNKNOWN_OFFSET constraint.
1447         Together with ESCAPED = *ESCAPED this properly computes reachability.
1448         (find_what_var_points_to): New function.
1449         (find_what_p_points_to): Implement in terms of find_what_var_points_to.
1450         (pt_solution_reset, pt_solution_empty_p, pt_solution_includes_global,
1451         pt_solution_includes_1, pt_solution_includes, pt_solutions_intersect_1,
1452         pt_solutions_intersect): New functions.
1453         (compute_call_used_vars): Remove.
1454         (compute_may_aliases): New main entry into PTA computation.
1455         * gimple.h (gimple_p): New typedef.
1456         (struct gimple_statement_base): Remove references_memory_p.
1457         (struct gimple_statement_with_memory_ops_base): Remove
1458         vdef_ops, vuse_ops, stores and loads members.  Add vdef and vuse
1459         members.
1460         (gimple_vuse_ops, gimple_set_vuse_ops, gimple_vdef_ops,
1461         gimple_set_vdef_ops, gimple_loaded_syms, gimple_stored_syms,
1462         gimple_set_references_memory): Remove.
1463         (gimple_vuse_op, gimple_vdef_op, gimple_vuse, gimple_vdef,
1464         gimple_vuse_ptr, gimple_vdef_ptri, gimple_set_vuse, gimple_set_vdef):
1465         New functions.
1466         * tree-cfg.c (move_block_to_fn): Fix off-by-one error.
1467         (verify_expr): Allow RESULT_DECL.
1468         (gimple_duplicate_bb): Do not copy virtual operands.
1469         (gimple_duplicate_sese_region): Adjust.
1470         (gimple_duplicate_sese_tail): Likewise.
1471         (mark_virtual_ops_in_region): Remove.
1472         (move_sese_region_to_fn): Do not call it.
1473         * passes.c (init_optimization_passes): Remove pass_reset_cc_flags
1474         and pass_simple_dse.
1475         (execute_function_todo): Handle TODO_update_address_taken,
1476         call execute_update_addresses_taken for TODO_rebuild_alias.
1477         (execute_todo): Adjust.
1478         (execute_one_pass): Init dump files early.
1479         * ipa-struct-reorg.c (finalize_var_creation): Do not mark vars
1480         call-clobbered.
1481         (create_general_new_stmt): Clear vops.
1482         * tree-ssa-reassoc.c (get_rank): Adjust.
1483         * tree-vect-slp.c (vect_create_mask_and_perm): Do not mark
1484         symbols for renaming.
1485         * params.def (PARAM_MAX_ALIASED_VOPS): Remove.
1486         (PARAM_AVG_ALIASED_VOPS): Likewise.
1487         * tree-ssanames.c (init_ssanames): Allocate SYMS_TO_RENAME.
1488         (duplicate_ssa_name_ptr_info): No need to copy the shared bitmaps.
1489         * tree-ssa-operands.c: Simplify for new virtual operand representation.
1490         (operand_build_cmp, copy_virtual_operands,
1491         create_ssa_artificial_load_stmt, add_to_addressable_set,
1492         gimple_add_to_addresses_taken): Remove public functions.
1493         (unlink_stmt_vdef): New function.
1494
1495 2009-04-03  Alan Modra  <amodra@bigpond.net.au>
1496
1497         * config.gcc (powerpc-*-linux*): Merge variants.
1498
1499 2009-04-02  Chao-ying Fu  <fu@mips.com>
1500             James Grosbach <james.grosbach@microchip.com>
1501
1502         * config/mips/mips.c (mips_frame_info): Add acc_mask, num_acc,
1503         num_cop0_regs, acc_save_offset, cop0_save_offset, acc_sp_offset,
1504         cop0_sp_offset.
1505         (machine_function): Add interrupt_handler_p, use_shadow_register_set_p,
1506         keep_interrupts_masked_p, use_debug_exception_return_p.
1507         (mips_attribute_table): Add interrupt, use_shadow_register_set,
1508         keep_interrupts_masked, use_debug_exception_return.
1509         (mips_interrupt_type_p, mips_use_shadow_register_set_p,
1510         mips_keep_interrupts_masked_p, mips_use_debug_exception_return_p):
1511         New functions.
1512         (mips_function_ok_for_sibcall): Return false for interrupt handlers.
1513         (mips_print_operand): Process COP0 registers to print $0 .. $31
1514         correctly for GAS to process.
1515         (mips_interrupt_extra_call_saved_reg_p): New function.
1516         (mips_cfun_call_saved_reg_p): For interrupt handlers, we need to check
1517         extra registers.
1518         (mips_cfun_might_clobber_call_saved_reg_p): Likewise.
1519         (mips_compute_frame_info): Add supports for interrupt context that
1520         includes doubleword accumulators and COP0 registers.
1521         (mips_for_each_saved_acc): New function.
1522         (mips_for_each_saved_gpr_and_fpr): Change the function name from
1523         mips_for_each_saved_reg.
1524         (mips_save_reg): Save accumulators.
1525         (mips_kernel_reg_p): A new for_each_rtx callback.
1526         (mips_expand_prologue): Support interrupt handlers.
1527         (mips_restore_reg): Restore accumulators.
1528         (mips_expand_epilogue): Support interrupt handlers.
1529         (mips_can_use_return_insn): Return false for interrupt handlers.
1530         (mips_epilogue_uses): New function.
1531         * config/mips/mips.md (UNSPEC_ERET, UNSPEC_DERET, UNSPEC_DI,
1532         UNSPEC_EHB, UNSPEC_RDPGPR, UNSPEC_COP0): New UNSPEC.
1533         (mips_eret, mips_deret, mips_di, mips_ehb, mips_rdpgpr,
1534         cop0_move): New instructions.
1535         * config/mips/mips-protos.h (mips_epilogue_uses): Declare.
1536         * config/mips/mips.h (K0_REG_NUM, K1_REG_NUM, KERNEL_REG_P): New
1537         defines.
1538         (COP0_STATUS_REG_NUM, COP0_CAUSE_REG_NUM, COP0_EPC_REG_NUM):
1539         New defines.
1540         (CAUSE_IPL, SR_IPL, SR_EXL, SR_IE): New defines.
1541         (MIPS_PROLOGUE_TEMP_REGNUM, MIPS_EPILOGUE_TEMP_REGNUM): For
1542         interrupt handlers, we use K0 as the temporary register.
1543         (EPILOGUE_USES): Change to a function call.
1544         * config/mips/sde.h (MIPS_EPILOGUE_TEMP_REGNUM): For interrupt
1545         handlers, we use K0 as the temporary register.
1546         
1547         * doc/extend.texi (Function Attributes): Document interrupt,
1548         use_shadow_register_set, keep_interrupts_masked,
1549         use_debug_exception_return for MIPS attributes.
1550
1551 2009-04-03  Alan Modra  <amodra@bigpond.net.au>
1552
1553         * config.gcc (powerpc64-*-gnu*): Add rs6000/default64.h to tm_file.
1554         Remove a number of t-files from tmake_file.
1555         * config/rs6000/sysv4.opt (mprototype): Name variable target_prototype.
1556         * config/rs6000/sysv4.h (TARGET_PROTOTYPE): Define.
1557         * config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Set
1558         target_prototype, not TARGET_PROTOTYPE.
1559         (LINK_OS_GNU_SPEC): Define.
1560         * config/rs6000/t-linux64 (LIB2FUNCS_EXTRA): Delete tramp.S
1561         and darwin-ldoubdle.c.
1562
1563 2009-04-02  Michael Meissner  <meissner@linux.vnet.ibm.com>
1564
1565         PR driver/39293
1566         * gcc.c (save_temps_flag): Add support for -save-temps=obj.
1567         (cpp_options): Ditto.
1568         (default_compilers): Ditto.
1569         (display_help): Ditto.
1570         (process_command): Ditto.
1571         (do_spec_1): Ditto.
1572         (set_input): Use lbasename instead of duplicate code.
1573         (save_temps_prefix): New static for -save-temps=obj.
1574         (save_temps_length): Ditto.
1575         
1576         * doc/invoke.texi (-save-temps=obj): Document new variant to
1577         -save-temps switch.
1578
1579 2009-04-02  Jeff Law  <law@redhat.com>
1580
1581         * reload1.c (fixup_eh_region_notes): Remove write-only "trap_count"
1582         variable.
1583
1584 2009-04-02  H.J. Lu  <hongjiu.lu@intel.com>
1585
1586         * configure.ac: Support -Bstatic/-Bdynamic for linker version > 2.
1587         * configure: Regenerated.
1588
1589 2009-04-02  Rafael Avila de Espindola  <espindola@google.com>
1590
1591         * c-decl.c (merge_decls): Make sure newdecl and olddecl don't
1592         share the argument list.
1593
1594 2009-04-02  Rafael Avila de Espindola  <espindola@google.com>
1595
1596         Merge
1597
1598         2009-02-12  Diego Novillo  <dnovillo@google.com>
1599
1600         * varpool.c (debug_varpool): New.
1601         * cgraph.h (debug_varpool): Declare.
1602
1603 2009-04-02  Jan Hubicka  <jh@suse.cz>
1604
1605         * passes.c (init_optimization_passes): Remove two copies of ehcleanup
1606         pass.
1607
1608 2009-04-02  H.J. Lu  <hongjiu.lu@intel.com>
1609
1610         * config/i386/i386.c (ix86_abi): Move initialization to ...
1611         (override_options): Here.
1612
1613 2009-04-02  Christian Bruel  <christian.bruel@st.com>
1614
1615         * config/sh/sh.c (sh_dwarf_register_span): New function.
1616         (TARGET_DWARF_REGISTER_SPAN): Define.
1617         * config/sh/sh-protos.h (sh_dwarf_register_span): Declare.
1618         
1619 2009-04-02  Ira Rosen  <irar@il.ibm.com>
1620
1621         PR tree-optimization/39595
1622         * tree-vect-slp.c (vect_build_slp_tree): Check that the size of 
1623         interleaved loads group is not  greater than the SLP group size.
1624
1625 2009-04-02  Rafael Avila de Espindola  <espindola@google.com>
1626
1627         * builtins.c (is_builtin_name): New.
1628         (called_as_built_in): Use is_builtin_name.
1629         * tree.h (is_builtin_name): New.
1630         * varasm.c (incorporeal_function_p): Use is_builtin_name
1631
1632 2009-04-02  Andrew Stubbs  <ams@codesourcery.com>
1633
1634         * config/sh/linux-unwind.h: Disable when inhibit_libc is defined.
1635
1636 2009-04-02  Dodji Seketeli  <dodji@redhat.com>
1637
1638         PR c++/26693
1639         * c-decl.c: (clone_underlying_type): Move this ...
1640         * c-common.c (set_underlying_type): ... here.
1641         Also, make sure the function properly sets TYPE_STUB_DECL() on
1642         the newly created typedef variant type.
1643         * c-common.h (is_typedef_decl, set_underlying_type): Declare ...
1644         * c-common.c (is_typedef_decl, set_underlying_type): ... new entry
1645         points.
1646
1647 2009-04-02  Richard Guenther  <rguenther@suse.de>
1648
1649         PR tree-optimization/37221
1650         * tree-flow.h (degenerate_phi_result): Declare.
1651         * tree-ssa-dom.c (degenerate_phi_result): Export.
1652         * tree-scalar-evolution.c (analyze_initial_condition): If
1653         the initial condition is defined by a degenerate PHI node
1654         use the degenerate value.
1655
1656 2009-04-01  Eric Botcazou  <ebotcazou@adacore.com>
1657
1658         PR rtl-optimization/39588
1659         * combine.c (merge_outer_ops): Do not set the constant when this
1660         is not necessary.
1661         (simplify_shift_const_1): Do not modify it either in this case.
1662
1663 2009-04-01  Steven Bosscher  <steven@gcc.gnu.org>
1664
1665         * config/ia64/ia64.c (ia64_handle_option): Inform user that Itanium1
1666         tuning is deprecated if -mtune value is set to an Itanium1 variant.
1667
1668 2009-04-01  Janis Johnson  <janis187@us.ibm.com>
1669
1670         PR c/29027
1671         * c-lex.c (interpret_float): Default (no suffix) is double.
1672
1673 2009-04-1  Xinliang David Li  <davidxl@google.com>
1674
1675         * config/i386/i386.c (legitimate_constant_p): Recognize
1676         all one vector constant.
1677
1678 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1679
1680         * gcc/config/vax/vax.c: Add #includes to silence warnings.
1681         Change #include order to silence two warnings.
1682
1683 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1684
1685         * gcc/config/vax/linux.h (TARGET_DEFAULT): Add the MASK_QMATH flag bit.
1686         (ASM_SPEC): Pass -k to the assembler for PIC code.
1687
1688 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1689
1690         * gcc/config.gcc: Add vax-*-linux* to the switch.
1691         * gcc/config/vax/linux.h: New file. (TARGET_VERSION,
1692         TARGET_OS_CPP_BUILTINS, TARGET_DEFAULT, CPP_SPEC, LINK_SPEC): Define.
1693
1694 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1695
1696         * gcc/config/vax/vax.c (vax_output_int_move, adjacent_operands_p):
1697         Use predicate macros instead of GET_CODE() == foo.
1698         * gcc/config/vax/vax.md (movsi_2, movstrictqi, and<mode>3, ashrsi3,
1699         ashlsi3, rotrsi3, <unnamed>): Likewise.
1700
1701 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1702
1703         * gcc/config/vax/builtins.md (jbbssiqi, jbbssihi, jbbssisi, jbbcciqi,
1704         jbbccihi, jbbccisi): Remova trailing whitespace.
1705         * gcc/config/vax/constraints.md: Likewise.
1706         * gcc/config/vax/elf.h: (ASM_PREFERRED_EH_DATA_FORMAT): Likewise.
1707         * gcc/config/vax/openbsd1.h (OBSD_OLD_GAS): Likewise.
1708         * gcc/config/vax/predicates.md: Likewise.
1709         * gcc/config/vax/vax.c (print_operand_address, vax_output_int_move,
1710         vax_expand_addsub_di_operands, adjacent_operands_p): Likewise.
1711         * gcc/config/vax/vax.h: Likewise.
1712         * gcc/config/vax/vax.md (nonlocal_goto): Likewise.
1713
1714 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1715
1716         * gcc/config/vax/vax.c (vax_float_literal, vax_output_int_move)
1717         (indirectable_address_p, adjacent_operands_p): Add spaces around
1718         braces.
1719         * gcc/config/vax/vax-protos.h (adjacent_operands_p): Likewise.
1720
1721 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1722
1723         * gcc/config/vax/vax.c (legitimate_constant_address_p,
1724         legitimate_constant_p, indirectable_address_p, nonindexed_address_p,
1725         index_term_p, reg_plus_index_p, legitimate_address_p,
1726         vax_mode_dependent_address_p): Update comments to match functions
1727         modified by the recent int->bool conversion.
1728
1729 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1730
1731         * gcc/config/vax/builtins.md: Update copyright message.
1732         * gcc/config/vax/constraints.md: Likewise.
1733         * gcc/config/vax/netbsd-elf.h: Likewise.
1734         * gcc/config/vax/predicates.md: Likewise.
1735         * gcc/config/vax/vax-protos.h: Likewise.
1736         * gcc/config/vax/vax.c: Likewise.
1737         * gcc/config/vax/vax.h: Likewise.
1738         * gcc/config/vax/vax.md: Likewise.
1739         * gcc/config/vax/vax.opt: Likewise.
1740
1741 2009-04-01  Jan-Benedict Glaw <jbglaw@jbglaw-dev.homezone.telefonica.de>
1742
1743         * gcc/config/vax/builtins.md (ffssi2, ffssi2_internal,
1744         sync_lock_test_and_set<mode>, sync_lock_release<mode>): Fix indention.
1745         * gcc/config/vax/constraints.md (B, R): Likewise.
1746         * gcc/config/vax/predicates.md (external_memory_operand,
1747         nonimmediate_addsub_di_operand): Likewise.
1748         * gcc/config/vax/vax.c (vax_output_int_add): Likewise.
1749         * gcc/config/vax/vax.md (movsi, movsi_2, mov<mode>, call_value,
1750         untyped_call): Likewise.
1751
1752 2009-04-01  Matt Thomas <matt@3am-software.com>
1753
1754         * config/vax/predicates.md: New file.
1755         (symbolic_operand, local_symbolic_operand, external_symbolic_operand,
1756         external_const_operand, nonsymbolic_operand, external_memory_operand,
1757         indirect_memory_operand, indexed_memory_operand,
1758         illegal_blk_memory_operand, illegal_addsub_di_memory_operand,
1759         nonimmediate_addsub_di_operand, general_addsub_di_operand): New
1760         predicate.
1761         * config/vax/constraints.md: New file.
1762         (Z0, U06,  U08, U16, CN6, S08, S16, I, J, K, L, M, N, O, G, Q, B, R, T):
1763         New constraint.
1764         * config/vax/builtins.md: New file.
1765         (ffssi2, ffssi2_internal, sync_lock_test_and_set<mode>, jbbssiqi,
1766         jbbssihi, jbbssisi, sync_lock_release<mode>, jbbcciqi, jbbccihi,
1767         jbbccisi): Define.
1768         * config/vax/vax.opt (mqmath): Add option.
1769         * config/vax/vax.md (isfx): Extend with DI.
1770         (VAXintQH, VAXintQHSD): Define.
1771         (tst<mode>, cmp<mode>, *bit<mode>, movmemhi1, truncsiqi2, truncsihi2,
1772         mulsidi3, add<mode>3, sub<mode>, mul<mode>3, div<mode>3, and<mode>,
1773         and<mode>_const_int, ior<mode>3, xor<mode>3, neg<mode>2,
1774         one_cmpl<mode>2, ashlsi3, lshrsi3, rotlsi3): Update constraints.
1775         (movdi): Update constraints and use vax_output_int_move().
1776         (movsi, movsi_2, pushlclsymreg, pushextsymreg, movlclsymreg,
1777         movextsymreg, adddi3, adcdi3, subdi3, sbcdi3, pushextsym, movextsym,
1778         pushlclsym, movlclsym, movaddr<mode>, pushaddr<mode>,
1779         nonlocal_goto): New.
1780         (mov<mode>): Extend accepted operand types.
1781         (subdi3_old): Rename from subdi3, change update constraints and use
1782         a new implementation.
1783         * gcc/config/vax/vax.h (PCC_BITFIELD_TYPE_MATTERS): Add space.
1784         (FRAME_POINTER_CFA_OFFSET, IRA_COVER_CLASSES, CLASS_MAX_NREGS,
1785         MOVE_RATIO, CLEAR_RATIO): Define.
1786         (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P,
1787         CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
1788         (PRINT_OPERAND): Redefine using a function instead of inlined code.
1789         * gcc/config/vax/vax.c (TARGET_BUILTIN_SETJMP_FRAME_VALUE): Define.
1790         (split_quadword_operands): Make static and really allow variable
1791         splitting.
1792         (print_operand_address): Update for PIC generation.
1793         (print_operand, vax_builtin_setjmp_frame_value, vax_output_int_subtract,
1794         indexable_address_p, fixup_mathdi_operand,
1795         vax_expand_addsub_di_operands, adjacent_operands_p): New.
1796         (vax_float_literal, legitimate_constant_p,
1797         indirectable_constant_address_p, index_term_p,
1798         reg_plus_index_p): Return bool instead of int.
1799         (vax_rtx_costs): Fix cost for CONST_INT, indent and use HOST_WIDE_INT
1800         where needed.
1801         (vax_output_int_move, vax_output_int_add): Extend to allow PIC
1802         generation.
1803         (vax_output_conditional_branch): Indent.
1804         (legitimate_constant_address_p, indirectable_constant_address_p,
1805         indirectable_address_p, nonindexed_address_p, legitimate_address_p,
1806         vax_mode_dependent_address_p): Return bool instead of int, update for
1807         PIC generation.
1808         * config/vax/vax-protos.h (legitimate_constant_address_p,
1809         legitimate_constant_p, legitimate_address_p,
1810         vax_mode_dependent_address_p): Change declaration to bool.
1811         (legitimate_pic_operand_p, adjacent_operands_p, print_operand,
1812         vax_expand_addsub_di_operands, vax_output_int_subtract,
1813         vax_output_movmemsi): Declare.
1814         (split_quadword_operands, vax_float_literal): Delete declaration.
1815         * config/vax/netbsd-elf.h (CC1_SPEC, CC1PLUS_SPEC) Define.
1816         * config/vax/elf.h (NO_EXTERNAL_INDIRECT_ADDRESS,
1817         VAX_CC1_AND_CC1PLUS_SPEC, ASM_PREFERRED_EH_DATA_FORMAT,
1818         ASM_OUTPUT_DWARF_PCREL): Define.
1819         (ASM_SPEC): Change definition to allow PIC generation.
1820
1821 2009-04-01  Steve Ellcey  <sje@cup.hp.com>
1822
1823         * doc/sourcebuild.texi: Update front-end requirements.
1824
1825 2009-04-01  Jakub Jelinek  <jakub@redhat.com>
1826
1827         PR target/39226
1828         * config/rs6000/rs6000.md (andsi3_internal5_nomc,
1829         anddi3_internal2_nomc, anddi3_internal3_nomc): Removed.
1830         (booldi3_internal3): Use boolean_or_operator instead of
1831         boolean_operator.
1832
1833 2009-04-01  Joseph Myers  <joseph@codesourcery.com>
1834
1835         PR c/39605
1836         * c-decl.c (grokdeclarator): Pedwarn for file-scope array
1837         declarator whose size is not an integer constant expression but
1838         folds to an integer constant, then treat it as a constant
1839         subsequently.
1840
1841 2009-04-01  Richard Guenther  <rguenther@suse.de>
1842
1843         * fold-const.c (fold_plusminus_mult_expr): Do not fold
1844         i * 4 + 2 to (i * 2 + 1) * 2.
1845
1846 2009-04-01  Jakub Jelinek  <jakub@redhat.com>
1847
1848         PR c/37772
1849         * c-parser.c (c_parser_asm_statement): Skip until close paren and
1850         return if c_parser_asm_string_literal returned NULL.
1851
1852 2009-04-01  Nick Clifton  <nickc@redhat.com>
1853
1854         * config/m32c/m32c.h (LIBGCC2_UNITS_PER_WORD): Define if not
1855         already defined.
1856         * config/m32c/t-m32c (LIB2FUNCS_EXTRA): Add m32c-lib2-trapv.c.
1857         * config/m32c/m32c-lib2.c: Remove unused typedefs.  Rename the
1858         other typedefs to avoid conflicts with libgcc2.c.  Define labels
1859         to gain 16-bit bit-manipulation functions from libgcc2.c and then
1860         include it.
1861         * config/m32c/m32c-lib2-trapv.c: New file.  Define labels
1862         to gain 16-bit trapping arithmetic functions from libgcc2.c and
1863         then include it.
1864
1865 2009-04-01  Rafael Avila de Espindola  <espindola@google.com>
1866
1867         * varasm.c (default_function_rodata_section): Declare DOT as
1868         const char*.
1869
1870 2009-04-01  Kai Tietz  <kai.tietz@onevision.com>
1871             Andrey Galkin <agalkin@hypercom.com>
1872
1873         PR/39492
1874         * config/i386/host-mingw32.c (mingw32_gt_pch_use_address):
1875         Make object_name unique for each process.
1876
1877 2009-04-01  Jakub Jelinek  <jakub@redhat.com>
1878
1879         PR other/39591
1880         * omp-low.c (remove_exit_barrier): Don't optimize if there are any
1881         addressable variables in the parallel that could go out of scope while
1882         running queued tasks.
1883
1884 2009-04-01  Anatoly Sokolov  <aesok@post.ru>
1885
1886         * config/avr/avr.h (avr_case_values_threshold): Remove declaration.
1887         (CASE_VALUES_THRESHOLD): Redefine.
1888         * config/avr/avr.c (avr_override_options): Remove initialization of
1889         avr_case_values_threshold variable.
1890         (avr_case_values_threshold): Remove variable. Add new function.
1891         * config/avr/avr-protos.h (avr_case_values_threshold): Declare.
1892         * config/avr/avr.opt (mno-tablejump): Remove option.
1893         * doc/invoke.texi (AVR Options): Remove -mno-tablejump.
1894
1895 2009-04-01  DJ Delorie  <dj@redhat.com>
1896
1897         * varasm.c (default_function_rodata_section): Don't assume
1898         anything about where the first '.' in the section name is.
1899
1900 2009-04-01  Alan Modra  <amodra@bigpond.net.au>
1901
1902         * config/rs6000/rs6000.c (rs6000_emit_stack_reset): Delete redundant
1903         rs6000_emit_stack_tie.
1904
1905 2009-03-31  Ian Lance Taylor  <iant@google.com>
1906
1907         * tree-eh.c (tree_remove_unreachable_handlers): Compare
1908         gimple_code with GIMPLE_RESX, not RESX.
1909
1910 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
1911
1912         * c-common.c (c_get_ident): New.
1913         (c_common_nodes_and_builtins): Call it for type names that may be NULL.
1914
1915 2009-04-01  Ben Elliston  <bje@au.ibm.com>
1916
1917         * config/rs6000/sysv4.opt (msdata): Improve option description.
1918
1919 2009-03-31  Steve Ellcey  <sje@cup.hp.com>
1920
1921         * config/ia64/ia64.md (divsf3_internal_lat): Remove.
1922         (divdf3_internal_lat): Remove.
1923         (divxf3_internal_lat): Remove.
1924         (divxf3_internal_thr): Remove.
1925         (divxf): Use divxf3_internal.
1926         * config/ia64/div.md (divsf3_internal_lat): New.
1927         (divdf3_internal_lat): New.
1928         (divxf3_internal): New.
1929
1930 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
1931
1932         PR c/448
1933         * Makefile.in (USE_GCC_STDINT): Define.
1934         (stmp-int-hdrs): Install stdint.h if applicable.
1935         * c-common.c (CHAR16_TYPE): Define in terms of UINT_LEAST16_TYPE
1936         if known.
1937         (CHAR32_TYPE): Define in terms of UINT_LEAST32_TYPE if known.
1938         (SIG_ATOMIC_TYPE, INT8_TYPE, INT16_TYPE, INT32_TYPE, INT64_TYPE,
1939         UINT8_TYPE, UINT16_TYPE, UINT32_TYPE, UINT64_TYPE,
1940         INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
1941         INT_LEAST64_TYPE, UINT_LEAST8_TYPE, UINT_LEAST16_TYPE,
1942         UINT_LEAST32_TYPE, UINT_LEAST64_TYPE, INT_FAST8_TYPE,
1943         INT_FAST16_TYPE, INT_FAST32_TYPE, INT_FAST64_TYPE,
1944         UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
1945         UINT_FAST64_TYPE, INTPTR_TYPE, UINTPTR_TYPE): Define.
1946         (c_common_nodes_and_builtins): Initialize
1947         underlying_wchar_type_node.  Do not initialize
1948         signed_wchar_type_node or unsigned_wchar_type_node.  Initialize
1949         nodes for new types.
1950         (c_stddef_cpp_builtins): Define macros for new types.
1951         * c-common.h (CTI_SIGNED_WCHAR_TYPE, CTI_UNSIGNED_WCHAR_TYPE):
1952         Remove.
1953         (CTI_UNDERLYING_WCHAR_TYPE, CTI_SIG_ATOMIC_TYPE, CTI_INT8_TYPE,
1954         CTI_INT16_TYPE, CTI_INT32_TYPE, CTI_INT64_TYPE, CTI_UINT8_TYPE,
1955         CTI_UINT16_TYPE, CTI_UINT32_TYPE, CTI_UINT64_TYPE,
1956         CTI_INT_LEAST8_TYPE, CTI_INT_LEAST16_TYPE, CTI_INT_LEAST32_TYPE,
1957         CTI_INT_LEAST64_TYPE, CTI_UINT_LEAST8_TYPE, CTI_UINT_LEAST16_TYPE,
1958         CTI_UINT_LEAST32_TYPE, CTI_UINT_LEAST64_TYPE, CTI_INT_FAST8_TYPE,
1959         CTI_INT_FAST16_TYPE, CTI_INT_FAST32_TYPE, CTI_INT_FAST64_TYPE,
1960         CTI_UINT_FAST8_TYPE, CTI_UINT_FAST16_TYPE, CTI_UINT_FAST32_TYPE,
1961         CTI_UINT_FAST64_TYPE, CTI_INTPTR_TYPE, CTI_UINTPTR_TYPE): Define.
1962         (signed_wchar_type_node, unsigned_wchar_type_node): Remove.
1963         (underlying_wchar_type_node, sig_atomic_type_node, int8_type_node,
1964         int16_type_node, int32_type_node, int64_type_node,
1965         uint8_type_node, uint16_type_node, c_uint32_type_node,
1966         c_uint64_type_node, int_least8_type_node, int_least16_type_node,
1967         int_least32_type_node, int_least64_type_node,
1968         uint_least8_type_node, uint_least16_type_node,
1969         uint_least32_type_node, uint_least64_type_node,
1970         int_fast8_type_node, int_fast16_type_node, int_fast32_type_node,
1971         int_fast64_type_node, uint_fast8_type_node, uint_fast16_type_node,
1972         uint_fast32_type_node, uint_fast64_type_node, intptr_type_node,
1973         uintptr_type_node): Define.
1974         * c-cppbuiltin.c (builtin_define_constants,
1975         builtin_define_type_minmax): New.
1976         (builtin_define_stdint_macros): Define more macros.
1977         (c_cpp_builtins): Define more limit macros.
1978         (type_suffix): New.
1979         (builtin_define_type_max): Define in terms of
1980         builtin_define_type_minmax.  Remove is_long parameter.  All
1981         callers changed.
1982         * config.gcc (use_gcc_stdint): Define.
1983         (tm_file): Add glibc-stdint.h for targets using glibc or uClibc.
1984         Add newlib-stdint.h for generic targets.
1985         * config/glibc-stdint.h, config/newlib-stdint.h,
1986         ginclude/stdint-gcc.h, ginclude/stdint-wrap.h: New.
1987         * config/m32c/m32c.h (UINTPTR_TYPE): Define.
1988         * config/score/score.h (UINTPTR_TYPE): Define.
1989         * config/sol2.h (SIG_ATOMIC_TYPE, INT8_TYPE, INT16_TYPE,
1990         INT32_TYPE, INT64_TYPE, UINT8_TYPE, UINT16_TYPE, UINT32_TYPE,
1991         UINT64_TYPE, INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
1992         INT_LEAST64_TYPE, UINT_LEAST8_TYPE, UINT_LEAST16_TYPE,
1993         UINT_LEAST32_TYPE, UINT_LEAST64_TYPE, INT_FAST8_TYPE,
1994         INT_FAST16_TYPE, INT_FAST32_TYPE, INT_FAST64_TYPE,
1995         UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
1996         UINT_FAST64_TYPE, INTPTR_TYPE, UINTPTR_TYPE): Define.
1997         * config/spu/spu.h (STDINT_LONG32): Define.
1998         * configure.ac (use_gcc_stdint): Substitute.
1999         * configure: Regenerate.
2000         * doc/cpp.texi (__SIG_ATOMIC_TYPE__, __INT8_TYPE__,
2001         __INT16_TYPE__, __INT32_TYPE__, __INT64_TYPE__, __UINT8_TYPE__,
2002         __UINT16_TYPE__, __UINT32_TYPE__, __UINT64_TYPE__,
2003         __INT_LEAST8_TYPE__, __INT_LEAST16_TYPE__, __INT_LEAST32_TYPE__,
2004         __INT_LEAST64_TYPE__, __UINT_LEAST8_TYPE__, __UINT_LEAST16_TYPE__,
2005         __UINT_LEAST32_TYPE_, __UINT_LEAST64_TYPE__, __INT_FAST8_TYPE__,
2006         __INT_FAST16_TYPE__, __INT_FAST32_TYPE__, __INT_FAST64_TYPE__,
2007         __UINT_FAST8_TYPE__, __UINT_FAST16_TYPE__, __UINT_FAST32_TYPE__,
2008         __UINT_FAST64_TYPE__, __INTPTR_TYPE__, __UINTPTR_TYPE__,
2009         __WINT_MAX__, __SIZE_MAX__, __PTRDIFF_MAX__, __UINTMAX_MAX__,
2010         __SIG_ATOMIC_MAX__, __INT8_MAX__, __INT16_MAX__, __INT32_MAX__,
2011         __INT64_MAX__, __UINT8_MAX__, __UINT16_MAX__, __UINT32_MAX__,
2012         __UINT64_MAX__, __INT_LEAST8_MAX__, __INT_LEAST16_MAX__,
2013         __INT_LEAST32_MAX__, __INT_LEAST64_MAX__, __UINT_LEAST8_MAX__,
2014         __UINT_LEAST16_MAX__, __UINT_LEAST32_MAX__, __UINT_LEAST64_MAX__,
2015         __INT_FAST8_MAX__, __INT_FAST16_MAX__, __INT_FAST32_MAX__,
2016         __INT_FAST64_MAX__, __UINT_FAST8_MAX__, __UINT_FAST16_MAX__,
2017         __UINT_FAST32_MAX__, __UINT_FAST64_MAX__, __INTPTR_MAX__,
2018         __UINTPTR_MAX__, __WCHAR_MIN__, __WINT_MIN__, __SIG_ATOMIC_MIN__,
2019         __INT8_C, __INT16_C, __INT32_C, __INT64_C, __UINT8_C, __UINT16_C,
2020         __UINT32_C, __UINT64_C, __INTMAX_C, __UINTMAX_C): Document.
2021         * doc/tm.texi (SIG_ATOMIC_TYPE, INT8_TYPE, INT16_TYPE, INT32_TYPE,
2022         INT64_TYPE, UINT8_TYPE, UINT16_TYPE, UINT32_TYPE, UINT64_TYPE,
2023         INT_LEAST8_TYPE, INT_LEAST16_TYPE, INT_LEAST32_TYPE,
2024         INT_LEAST64_TYPE, UINT_LEAST8_TYPE, UINT_LEAST16_TYPE,
2025         UINT_LEAST32_TYPE, UINT_LEAST64_TYPE, INT_FAST8_TYPE,
2026         INT_FAST16_TYPE, INT_FAST32_TYPE, INT_FAST64_TYPE,
2027         UINT_FAST8_TYPE, UINT_FAST16_TYPE, UINT_FAST32_TYPE,
2028         UINT_FAST64_TYPE, INTPTR_TYPE, UINTPTR_TYPE): Document.
2029
2030 2009-03-31  Bernd Schmidt  <bernd.schmidt@analog.com>
2031
2032         * loop-iv.c (suitable_set_for_replacement): Renamed from
2033         simplify_using_assignment; changed to return bool and to accept new
2034         args DEST and SRC.  Return true iff we find a source/destination pair
2035         that can be used to make a replacement, and fill SRC and DEST if so.
2036         Remove arg ALTERED.  Don't deal with altered regs here.  All callers
2037         changed.
2038         (simplify_using_initial_values): Deal with altered regs here and track
2039         more precisely the effect they have on the validity of our expression.
2040
2041         * loop-iv.c (simplify_using_condition): A condition of the form
2042         (EQ REG CONST) can be used to simply make a substitution.
2043         (simplify_using_initial_values): Keep track of conditions we have seen
2044         and keep using them to simplify new expressions, while applying the
2045         same substitutions to them as to the expression.
2046
2047         * simplify-rtx.c (simplify_relational_operation_1): Simplify
2048         (LTU (PLUS a C) C) or (LTU (PLUS a C) a) to (GEU a -C); likewise with
2049         GEU/LTU reversed.
2050
2051         * loop-iv.c (determine_max_iter): New arg OLD_NITER.  All callers
2052         changed.  Use this when trying to improve the upper bound.
2053         Generate the comparison by using simplify_gen_relational.
2054
2055         * loop-iv.c (simple_rhs_p): Allow more kinds of expressions.
2056
2057         * loop-iv.c (replace_single_def_regs, replace_in_expr): New static
2058         functions.
2059         (simplify_using_assignment, simplify_using_initial_values): Call 
2060         replace_in_expr to make replacements.  Call replace_single_def_regs
2061         once on the initial version of the expression.
2062
2063 2009-03-31  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
2064
2065         PR target/27237
2066         * doc/invoke.texi (ARM Options): Update documentation for -mthumb.
2067         
2068 2009-03-31  Richard Guenther  <rguenther@suse.de>
2069
2070         PR middle-end/31029
2071         * fold-const.c (fold_binary): Fold X +- Y CMP X to Y CMP 0 for
2072         equality comparisons.  Fold C - X CMP X if C % 2 == 1.
2073
2074 2009-03-31  Richard Guenther  <rguenther@suse.de>
2075
2076         * tree.h (div_if_zero_remainder): Declare.
2077         * fold-const.c (div_if_zero_remainder): Export.
2078         * tree-ssa-forwprop.c
2079         (forward_propagate_addr_into_variable_array_index): Handle
2080         constant array index addition outside of the variable index.
2081
2082 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
2083
2084         PR target/39592
2085         * config/i386/i386.md (*floatunssi<mode>2_1, two unnamed
2086         define_splits, floatunssi<mode>2): Require x87 conversions from
2087         DImode to be permitted.
2088
2089 2009-03-31  Joseph Myers  <joseph@codesourcery.com>
2090
2091         PR preprocessor/15638
2092         * c-common.c (c_cpp_error): Handle CPP_DL_FATAL.
2093
2094 2009-03-31  Richard Guenther  <rguenther@suse.de>
2095
2096         PR middle-end/23401
2097         PR middle-end/27810
2098         * tree.h (DECL_GIMPLE_FORMAL_TEMP_P): Remove.
2099         (struct tree_decl_with_vis): Remove gimple_formal_temp member.
2100         * tree-eh.c (lower_eh_constructs_2): Move LHS assignment to
2101         a separate statement.
2102         * gimplify.c (pop_gimplify_context): Remove formal temp handling.
2103         (lookup_tmp_var): Likewise.
2104         (is_gimple_formal_tmp_or_call_rhs): Remove.
2105         (is_gimple_reg_or_call_rhs): Rename to ...
2106         (is_gimple_reg_rhs_or_call): ... this.
2107         (is_gimple_mem_or_call_rhs): Rename to ...
2108         (is_gimple_mem_rhs_or_call): ... this.
2109         (internal_get_tmp_var): Use is_gimple_reg_rhs_or_call.  Set
2110         DECL_GIMPLE_REG_P only if is_formal is true.
2111         (gimplify_compound_lval): Use is_gimple_reg.  Remove workaround
2112         for non-proper post-modify expression gimplification.
2113         (gimplify_self_mod_expr): For post-modify expressions gimplify
2114         the lvalue to a minimal lvalue.
2115         (rhs_predicate_for): Remove formal temp case.
2116         (gimplify_modify_expr_rhs): Likewise.
2117         (gimplify_addr_expr): Use is_gimple_reg.
2118         (gimplify_expr): Remove formal temp cases.
2119         (gimple_regimplify_operands): Likewise.
2120         * tree-ssa-pre.c (get_or_alloc_expr_for): Treat EXC_PTR_EXPR
2121         and FILTER_EXPR like constants.
2122         * gimple.c (walk_gimple_op): Fix val_only initialization, use
2123         is_gimple_reg.
2124         (is_gimple_formal_tmp_rhs): Remove.
2125         (is_gimple_reg_rhs): Remove special casing.
2126         (is_gimple_mem_rhs): Fix.
2127         (is_gimple_reg): Move DECL_GIMPLE_REG_P handling earlier.
2128         (is_gimple_formal_tmp_var): Remove.
2129         (is_gimple_formal_tmp_reg): Likewise.
2130         (is_gimple_min_lval): Allow invariant component ref parts.
2131         * gimple.h (is_gimple_formal_tmp_rhs, is_gimple_formal_tmp_var,
2132         is_gimple_formal_tmp_reg): Remove declarations.
2133         * tree-cfg.c (verify_expr): Verify that variables with address
2134         taken do not have DECL_GIMPLE_REG_P set.
2135         * tree-mudflap.c (mf_build_check_statement_for): Use
2136         force_gimple_operand instead of gimplify_expr.
2137
2138 2009-03-31  Ayal Zaks  <zaks@il.ibm.com>
2139
2140         * modulo-sched.c (sms_schedule_by_order): Pass the actual
2141         schedulable rows to compute_split_row.
2142
2143 2009-03-31  Ben Elliston  <bje@au.ibm.com>
2144
2145         PR target/31635
2146         * config/rs6000/rs6000.c (rs6000_handle_option): Handle
2147         OPT_mvrsave.
2148
2149 2009-03-31  Alan Modra  <amodra@bigpond.net.au>
2150
2151         * doc/invoke.texi (RS/6000 and PowerPC Options):Document mtls-markers.
2152         * configure.ac (HAVE_AS_TLS_MARKERS): New gas feature check.
2153         * configure: Regenerate.
2154         * config.in: Regenerate.
2155         * config/rs6000/rs6000.opt (mtls-markers): Add.
2156         * config/rs6000/rs6000.h (TARGET_TLS_MARKERS): Define.
2157         * config/rs6000/rs6000.md (tls_gd_aix, tls_gd_sysv): Add splitter.
2158         (tls_ld_aix, tls_ld_sysv): Likewise.
2159         (tls_gd, tls_gd_call_aix, tls_gd_call_sysv): New insns.
2160         (tls_ld, tls_ld_call_aix, tls_ld_call_sysv): Likewise.
2161
2162 2009-03-31  Alan Modra  <amodra@bigpond.net.au>
2163
2164         * config/spu/spu.c (spu_expand_prologue): Delete redundant code.
2165
2166 2009-03-30  Jan Hubicka  <jh@suse.cz>
2167
2168         * tree-eh.c (make_eh_edges): Set probability 100% to first edge
2169         out of RESX.
2170         (tree_remove_unreachable_handlers): Cleanup EH predecestor
2171         detection and label handling.
2172
2173 2009-03-30  Vladimir Makarov  <vmakarov@redhat.com>
2174
2175         * ira-int.h (ira_allocno): Rename left_conflicts_num to
2176         left_conflicts_size.
2177         (ALLOCNO_LEFT_CONFLICTS_NUM): Rename to
2178         ALLOCNO_LEFT_CONFLICTS_SIZE.
2179
2180         * ira-color.c (allocno_spill_priority, push_allocno_to_stack,
2181         remove_allocno_from_bucket_and_push,
2182         allocno_spill_priority_compare, push_allocnos_to_stack,
2183         setup_allocno_available_regs_num): Use ALLOCNO_LEFT_CONFLICTS_SIZE
2184         instead of ALLOCNO_LEFT_CONFLICTS_NUM.
2185         (setup_allocno_left_conflicts_num): Ditto.  Rename to
2186         setup_allocno_left_conflicts_size.
2187         (put_allocno_into_bucket): Use ALLOCNO_LEFT_CONFLICTS_SIZE
2188         instead of ALLOCNO_LEFT_CONFLICTS_NUM and
2189         setup_allocno_left_conflicts_size instead of
2190         setup_allocno_left_conflicts_num.
2191
2192         * ira-build.c (ira_create_allocno): Use
2193         ALLOCNO_LEFT_CONFLICTS_SIZE instead of
2194         ALLOCNO_LEFT_CONFLICTS_NUM.
2195                 
2196 2009-03-30  Vladimir Makarov  <vmakarov@redhat.com>
2197
2198         * reload.c (push_reload, find_dummy_reload): Use df_get_live_out
2199         instead of DF_LR_OUT.
2200
2201         * ira-lives.c (process_bb_node_lives): Ditto.
2202
2203         * ira-color.c (ira_loop_edge_freq): Use df_get_live_{out,in}
2204         instead of DF_LR_{OUT,IN}.
2205
2206         * ira-emit.c (generate_edge_moves, add_ranges_and_copies): Ditto.
2207
2208         * ira-build.c (create_bb_allocnos, create_loop_allocnos): Ditto.
2209
2210 2009-03-30  Jan Hubicka  <jh@suse.cz>
2211
2212         * except.c (label_to_region_map): Fix thinko.
2213
2214 2009-03-30  Steve Ellcey  <sje@cup.hp.com>
2215
2216         PR middle-end/38237
2217         * tree.h (tree_find_value): New declaration.
2218         * tree.c (tree_find_value): New function.
2219         * varasm.c (assemble_external): Avoid duplicate entries on lists.
2220
2221 2009-03-30  Jakub Jelinek  <jakub@redhat.com>
2222
2223         PR debug/39563
2224         * c-decl.c (struct c_binding): Add locus field.
2225         (bind): Add locus argument, set locus field from it.
2226         (pop_scope): For b->nested VAR_DECL or FUNCTION_DECL,
2227         add a DECL_EXTERNAL copy of b->decl to current BLOCK_VARS.
2228         (push_file_scope, pushtag, pushdecl, pushdecl_top_level,
2229         implicitly_declare, undeclared_variable, lookup_label,
2230         declare_label, c_make_fname_decl, c_builtin_function,
2231         c_builtin_function_ext_scope, store_parm_decls_newstyle): Adjust
2232         bind callers.
2233
2234 2008-03-30  H.J. Lu  <hongjiu.lu@intel.com>
2235
2236         PR target/38781
2237         * config/i386/i386.c (classify_argument): Check total size of
2238         structure.
2239
2240 2009-03-30  Martin Jambor  <mjambor@suse.cz>
2241
2242         * ipa-prop.h (jump_func_type): Rename IPA_UNKNOWN, IPA_CONST,
2243         IPA_CONST_MEMBER_PTR, and IPA_PASS_THROUGH to IPA_JF_UNKNOWN,
2244         IPA_JF_CONST, IPA_JF_CONST_MEMBER_PTR, and IPA_JF_PASS_THROUGH
2245         respectively.
2246
2247         * tree-dfa.c (get_ref_base_and_extent): Return -1 maxsize if
2248         seen_variable_array_ref while also traversing a union.
2249
2250         * tree-inline.c (optimize_inline_calls): Do not call
2251         cgraph_node_remove_callees.
2252         * cgraphbuild.c (remove_cgraph_callee_edges): New function.
2253         (pass_remove_cgraph_callee_edges): New variable.
2254         * passes.c (init_optimization_passes): Add
2255         pass_remove_cgraph_callee_edges after early inlining and before all
2256         late intraprocedural passes.
2257
2258         * omp-low.c (expand_omp_taskreg): Always set current_function_decl.
2259
2260 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2261
2262         * config/sparc/sparc.md (*nand<V64mode>_vis, *nand<V32mode>_vis):
2263         Fix typos in names.
2264
2265 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2266
2267         * combine.c (simplify_comparison): Use have_insn_for.
2268         * dojump.c (do_jump): Likewise.
2269
2270 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2271
2272         * config/sparc/sparc.c (sparc_compare_emitted): Remove.
2273         (gen_compare_reg, emit_v9_brxx_insn): Handle MODE_CC
2274         sparc_compare_op0 like sparc_compare_emitted used to be handled.
2275         (sparc_expand_compare_and_swap_12): Set sparc_compare_op0
2276         instead of sparc_compare_emitted.
2277         * config/sparc/sparc.h (sparc_compare_emitted): Remove.
2278         * config/sparc/sparc.md (stack_protect_test): Set sparc_compare_op0
2279         instead of sparc_compare_emitted.
2280
2281 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2282
2283         * bb-reorder.c (partition_hot_cold_basic_blocks): Do not
2284         enter/exit cfglayout mode.
2285         (pass_partition_block): Require it.
2286         * combine.c (find_single_use, reg_dead_at_p): Use CFG.
2287         (combine_instructions): Track basic blocks instead of labels.
2288         (update_cfg_for_uncondjump): New.
2289         (try_combine): Use it.  Update jumps after rescanning.
2290         (pass_combine): Require PROP_cfglayout.
2291         * passes.c (pass_outof_cfg_layout_mode): Move after regmove.
2292
2293 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2294
2295         * cfglayout.c (pass_into_cfg_layout_mode, pass_outof_cfg_layout_mode):
2296         Provide/destroy PROP_cfglayout respectively.
2297         * gcse.c (pass_jump_bypass, pass_gcse): Require it.
2298         * tree-pass.h (PROP_cfglayout): New.
2299
2300 2009-03-30  Paolo Bonzini  <bonzini@gnu.org>
2301
2302         * fold-const.c (const_binop, fold_convert_const_real_from_fixed,
2303         fold_convert_const_fixed_from_fixed,
2304         fold_convert_const_fixed_from_int,
2305         fold_convert_const_fixed_from_real, fold_negate_const): Do not
2306         set TREE_CONSTANT_OVERFLOW.
2307         * tree.def: Remove mention of TREE_CONSTANT_OVERFLOW.
2308         * tree.h (TREE_CONSTANT_OVERFLOW): Delete.
2309
2310 2009-03-30  Ira Rosen  <irar@il.ibm.com>
2311
2312         * tree-vect-loop-manip.c: New file.
2313         * tree-vectorizer.c: Update documentation and included files.
2314         (vect_loop_location): Make extern.
2315         (rename_use_op): Move to tree-vect-loop-manip.c
2316         (rename_variables_in_bb, rename_variables_in_loop, 
2317         slpeel_update_phis_for_duplicate_loop, 
2318         slpeel_update_phi_nodes_for_guard1,
2319         slpeel_update_phi_nodes_for_guard2, slpeel_make_loop_iterate_ntimes,
2320         slpeel_tree_duplicate_loop_to_edge_cfg, slpeel_add_loop_guard,
2321         slpeel_can_duplicate_loop_p, slpeel_verify_cfg_after_peeling,
2322         set_prologue_iterations, slpeel_tree_peel_loop_to_edge, 
2323         find_loop_location): Likewise.
2324         (new_stmt_vec_info): Move to tree-vect-stmts.c.
2325         (init_stmt_vec_info_vec, free_stmt_vec_info_vec, free_stmt_vec_info,
2326         get_vectype_for_scalar_type, vect_is_simple_use,
2327         supportable_widening_operation, supportable_narrowing_operation):
2328         Likewise.
2329         (bb_in_loop_p): Move to tree-vect-loop.c.
2330         (new_loop_vec_info, destroy_loop_vec_info, 
2331         reduction_code_for_scalar_code, report_vect_op, 
2332         vect_is_simple_reduction, vect_is_simple_iv_evolution): Likewise.
2333         (vect_can_force_dr_alignment_p): Move to tree-vect-data-refs.c.
2334         (vect_supportable_dr_alignment): Likewise.
2335         * tree-vectorizer.h (tree-data-ref.h): Include.
2336         (vect_loop_location): Declare.
2337         Reorganize function declarations according to the new file structure.
2338         * tree-vect-loop.c: New file.
2339         * tree-vect-analyze.c: Remove. Move functions to tree-vect-data-refs.c, 
2340         tree-vect-stmts.c, tree-vect-slp.c, tree-vect-loop.c.
2341         * tree-vect-data-refs.c: New file.
2342         * tree-vect-patterns.c (timevar.h): Don't include.
2343         * tree-vect-stmts.c: New file.
2344         * tree-vect-transform.c: Remove. Move functions to tree-vect-stmts.c, 
2345         tree-vect-slp.c, tree-vect-loop.c.
2346         * Makefile.in (OBJS-common): Remove tree-vect-analyze.o and 
2347         tree-vect-transform.o. Add tree-vect-data-refs.o, tree-vect-stmts.o, 
2348         tree-vect-loop.o, tree-vect-loop-manip.o, tree-vect-slp.o.
2349         (tree-vect-analyze.o): Remove.
2350         (tree-vect-transform.o): Likewise.
2351         (tree-vect-data-refs.o): Add rule.
2352         (tree-vect-stmts.o, tree-vect-loop.o, tree-vect-loop-manip.o, 
2353         tree-vect-slp.o): Likewise.
2354         (tree-vect-patterns.o): Remove redundant dependencies.
2355         (tree-vectorizer.o): Likewise.
2356         * tree-vect-slp.c: New file.
2357
2358 2009-03-30  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
2359
2360         * optc-gen.awk: Warn if an option flag has multiple different
2361         help strings.
2362
2363 2009-03-30  Sebastian Pop  <sebastian.pop@amd.com>
2364
2365         * doc/invoke.texi (-floop-interchange, -floop-strip-mine,
2366         -floop-block): Document dependences on PPL, CLooG and Graphite.
2367
2368 2009-03-30  Joseph Myers  <joseph@codesourcery.com>
2369
2370         PR rtl-optimization/323
2371         * c-common.c (c_fully_fold, convert_and_check,
2372         c_common_truthvalue_conversion): Handle EXCESS_PRECISION_EXPR.
2373         (c_fully_fold_internal): Disallow EXCESS_PRECISION_EXPR.
2374         * c-common.def (EXCESS_PRECISION_EXPR): New.
2375         * c-cppbuiltin.c (builtin_define_float_constants): Define
2376         constants with enough digits for long double.
2377         * c-lex.c (interpret_float): Interpret constant with excess
2378         precision where appropriate.
2379         * c-opts.c (c_common_post_options): Set
2380         flag_excess_precision_cmdline.  Give an error for
2381         -fexcess-precision=standard for C++ for processors where the
2382         option is significant.
2383         * c-parser.c (c_parser_conditional_expression): Handle excess
2384         precision in condition.
2385         * c-typeck.c (convert_arguments): Handle arguments with excess
2386         precision.
2387         (build_unary_op): Move excess precision outside operation.
2388         (build_conditional_expr): Likewise.
2389         (build_compound_expr): Likewise.
2390         (build_c_cast): Do cast on operand of EXCESS_PRECISION_EXPR.
2391         (build_modify_expr): Handle excess precision in RHS.
2392         (convert_for_assignment): Handle excess precision in converted
2393         value.
2394         (digest_init, output_init_element, process_init_element): Handle
2395         excess precision in initializer.
2396         (c_finish_return): Handle excess precision in return value.
2397         (build_binary_op): Handle excess precision in operands and add
2398         excess precision as needed for operation.
2399         * common.opt (-fexcess-precision=): New option.
2400         * config/i386/i386.h (X87_ENABLE_ARITH, X87_ENABLE_FLOAT): New.
2401         * config/i386/i386.md (float<SSEMODEI24:mode><X87MODEF:mode>2):
2402         For standard excess precision, output explicit conversion to and
2403         truncation from XFmode.
2404         (*float<SSEMODEI24:mode><X87MODEF:mode>2_1,
2405         *float<SSEMODEI24:mode><X87MODEF:mode>2_i387_with_temp,
2406         *float<SSEMODEI24:mode><X87MODEF:mode>2_i387, two unnamed
2407         define_splits, floatdi<X87MODEF:mode>2_i387_with_xmm, two unnamed
2408         define_splits, *floatunssi<mode>2_1, two unnamed define_splits,
2409         floatunssi<mode>2, add<mode>3, sub<mode>3, mul<mode>3, divdf3,
2410         divsf3, *fop_<mode>_comm_i387, *fop_<mode>_1_i387,
2411         *fop_<MODEF:mode>_2_i387, *fop_<MODEF:mode>_3_i387,
2412         *fop_df_4_i387, *fop_df_5_i387, *fop_df_6_i387, two unnamed
2413         define_splits, sqrt<mode>2): Disable where appropriate for
2414         standard excess precision.
2415         * convert.c (convert_to_real): Do not shorten arithmetic to type
2416         for which excess precision would be used.
2417         * defaults.h (TARGET_FLT_EVAL_METHOD_NON_DEFAULT): Define.
2418         * doc/invoke.texi (-fexcess-precision=): Document option.
2419         (-mfpmath=): Correct index entry.
2420         * flags.h (enum excess_precision, flag_excess_precision_cmdline,
2421         flag_excess_precision): New.
2422         * langhooks.c (lhd_post_options): Set
2423         flag_excess_precision_cmdline.
2424         * opts.c (common_handle_option): Handle -fexcess-precision=.
2425         * toplev.c (flag_excess_precision_cmdline, flag_excess_precision,
2426         init_excess_precision): New.
2427         (lang_dependent_init_target): Call init_excess_precision.
2428         * tree.c (excess_precision_type): New.
2429         * tree.h (excess_precision_type): Declare.
2430
2431 2009-03-30  Joseph Myers  <joseph@codesourcery.com>
2432
2433         PR c/35235
2434         * c-typeck.c (build_component_ref): Do not copy qualifiers from
2435         non-lvalue to component.
2436
2437 2009-03-29  Joseph Myers  <joseph@codesourcery.com>
2438
2439         PR preprocessor/34695
2440         * Makefile.in (c-opts.o): Depend on c-tree.h.
2441         * c-common.c: Move down include of diagnostic.h.
2442         (done_lexing, c_cpp_error): New.
2443         * c-common.h (done_lexing): Declare.
2444         * c-decl.c (c_write_global_declarations): Don't check cpp_errors
2445         (parse_in).
2446         * c-opts.c: Include c-tree.h.
2447         (c_common_init_options): Set preprocessor error callback.
2448         (c_common_handle_option): Do not set preprocessor
2449         inhibit_warnings, warnings_are_errors, warn_system_headers,
2450         pedantic_errors or inhibit_warnings flags.
2451         (c_common_post_options): Do not check cpp_errors (parse_in).
2452         (c_common_finish): Do not output dependencies if there were
2453         errors.  Do not check return value of cpp_finish.
2454         * c-ppoutput.c (pp_file_change): Set input_location.
2455         * c-tree.h (c_cpp_error): Declare.
2456         * diagnostic.c (diagnostic_set_info_translated): Also initialize
2457         override_column.
2458         (diagnostic_build_prefix): Check override_column.
2459         * diagnostic.h (diagnostic_info): Add override_column field.
2460         (diagnostic_override_column): Define.
2461
2462 2009-03-28  Paolo Bonzini  <bonzini@gnu.org>
2463
2464         * c-common.c (c_expand_expr, c_staticp): Remove.
2465         * c-common.def (COMPOUND_LITERAL_EXPR): Delete.
2466         * c-common.h (emit_local_var, c_staticp, COMPOUND_LITERAL_EXPR_DECL,
2467         COMPOUND_LITERAL_EXPR_DECL_EXPR): Remove.
2468         * c-gimplify.c (gimplify_compound_literal_expr,
2469         optimize_compound_literals_in_ctor): Remove.
2470         (c_gimplify_expr): Remove COMPOUND_LITERAL_EXPR handling.
2471         * c-objc-common.h (LANG_HOOKS_STATICP): Remove.
2472         * c-semantics.c (emit_local_var): Remove.
2473
2474         * langhooks-def.h (lhd_expand_expr): Remove.
2475         * langhooks.c (lhd_expand_expr): Remove.
2476         * langhooks.h (LANG_HOOKS_DEF): Remove LANG_HOOKS_EXPAND_EXPR.
2477
2478         * expr.c (expand_expr_real_1): Move COMPOUND_LITERAL_EXPR
2479         handling from c-semantics.c; don't call into langhook.
2480         (expand_expr_addr_expr_1): Check that we don't get non-GENERIC trees.
2481         * gimplify.c (gimplify_compound_literal_expr,
2482         optimize_compound_literals_in_ctor): Move from c-gimplify.c.
2483         (gimplify_init_constructor): Call optimize_compound_literals_in_ctor.
2484         (gimplify_modify_expr_rhs, gimplify_expr): Handle COMPOUND_LITERAL_EXPR
2485         as was done in c-gimplify.c.
2486         * tree.c (staticp): Move COMPOUND_LITERAL_EXPR handling from c_staticp.
2487         * tree.h (COMPOUND_LITERAL_EXPR_DECL, COMPOUND_LITERAL_EXPR_DECL_EXPR):
2488         Move from c-common.h.
2489         * tree.def (COMPOUND_LITERAL_EXPR): Move from c-common.def.
2490
2491         * tree.c (staticp): Do not call langhook.
2492         * langhooks.c (lhd_staticp): Delete.
2493         * langhooks-def.h (lhd_staticp): Delete prototype.
2494         (LANG_HOOKS_STATICP): Delete.
2495         (LANG_HOOKS_INITIALIZER): Delete LANG_HOOKS_STATICP.
2496
2497         * doc/c-tree.texi (Expression nodes): Refer to DECL_EXPRs
2498         instead of DECL_STMTs.
2499
2500 2009-03-29  Joseph Myers  <joseph@codesourcery.com>
2501
2502         PR c/456
2503         PR c/5675
2504         PR c/19976
2505         PR c/29116
2506         PR c/31871
2507         PR c/35198
2508         * builtins.c (fold_builtin_sincos): Build COMPOUND_EXPR in
2509         void_type_node.
2510         (fold_call_expr): Return a NOP_EXPR from folding rather than the
2511         contained expression.
2512         * c-common.c (c_fully_fold, c_fully_fold_internal, c_save_expr): New.
2513         (c_common_truthvalue_conversion): Use c_save_expr.  Do not fold
2514         conditional expressions for C.
2515         (decl_constant_value_for_optimization): Move from
2516         decl_constant_value_for_broken_optimization in c-typeck.c.  Check
2517         whether optimizing and that the expression is a VAR_DECL not of
2518         array type instead of doing such checks in the caller.  Do not
2519         check pedantic.  Call gcc_unreachable for C++.
2520         * c-common.def (C_MAYBE_CONST_EXPR): New.
2521         * c-common.h (c_fully_fold, c_save_expr,
2522         decl_constant_value_for_optimization): New prototypes.
2523         (C_MAYBE_CONST_EXPR_PRE, C_MAYBE_CONST_EXPR_EXPR,
2524         C_MAYBE_CONST_EXPR_INT_OPERANDS, C_MAYBE_CONST_EXPR_NON_CONST,
2525         EXPR_INT_CONST_OPERANDS): Define.
2526         * c-convert.c (convert): Strip nops from expression.
2527         * c-decl.c (groktypename): Take extra parameters expr and
2528         expr_const_operands.  Update call to grokdeclarator.
2529         (start_decl): Update call to grokdeclarator.  Add statement for
2530         expressions used in type of decl.
2531         (grokparm): Update call to grokdeclarator.
2532         (push_parm_decl): Update call to grokdeclarator.
2533         (build_compound_literal): Add parameter non_const and build a
2534         C_MAYBE_COSNT_EXPR if applicable.
2535         (grokdeclarator): Take extra parameters expr and
2536         expr_const_operands.  Track expressions used in declaration
2537         specifiers and declarators.  Fold array sizes and track whether
2538         they are constant expressions and whether they are integer
2539         constant expressions.
2540         (parser_xref_tag): Set expr and expr_const_operands fields in
2541         return value.
2542         (grokfield): Update call to grokdeclarator.
2543         (start_function): Update call to grokdeclarator.
2544         (build_null_declspecs): Set expr and expr_const_operands fields in
2545         return value.
2546         (declspecs_add_type): Handle expressions in typeof specifiers.
2547         * c-parser.c (c_parser_declspecs): Set expr and
2548         expr_const_operands fields for declaration specifiers.
2549         (c_parser_enum_specifier): Likewise.
2550         (c_parser_struct_or_union_specifier): Likewise.
2551         (c_parser_typeof_specifier): Likewise.  Update call to
2552         groktypename.  Fold expression as needed.  Return expressions with
2553         type instead of adding statements.
2554         (c_parser_attributes): Update calls to c_parser_expr_list.
2555         (c_parser_statement_after_labels): Fold expression before passing
2556         to objc_build_throw_stmt.
2557         (c_parser_condition): Fold expression.
2558         (c_parser_asm_operands): Fold expression.
2559         (c_parser_conditional_expression): Use c_save_expr.  Update call
2560         to build_conditional_expr.
2561         (c_parser_alignof_expression): Update call to groktypename.
2562         (c_parser_postfix_expression): Preserve C_MAYBE_CONST_EXPR as
2563         original_code.  Fold expression argument of va_arg.  Create
2564         C_MAYBE_CONST_EXPR to preserve side effects of expressions in type
2565         argument to va_arg.  Update calls to groktypename.  Fold array
2566         index for offsetof.  Verify that first argument to
2567         __builtin_choose_expr has integer type.
2568         (c_parser_postfix_expression_after_paren_type): Update calls to
2569         groktypename and build_compound_literal.  Handle expressions with
2570         side effects in type name.
2571         (c_parser_postfix_expression_after_primary): Update call to
2572         c_parser_expr_list.  Set original_code for calls to
2573         __builtin_constant_p.
2574         (c_parser_expr_list): Take extra parameter fold_p.  Fold
2575         expressions if requested.
2576         (c_parser_objc_type_name): Update call to groktypename.
2577         (c_parser_objc_synchronized_statement): Fold expression.
2578         (c_parser_objc_receiver): Fold expression.
2579         (c_parser_objc_keywordexpr): Update call to c_parser_expr_list.
2580         (c_parser_omp_clause_num_threads, c_parser_omp_clause_schedule,
2581         c_parser_omp_atomic, c_parser_omp_for_loop): Fold expressions.
2582         * c-tree.h (CONSTRUCTOR_NON_CONST): Define.
2583         (struct c_typespec): Add elements expr and expr_const_operands.
2584         (struct c_declspecs): Add elements expr and expr_const_operands.
2585         (groktypename, build_conditional_expr, build_compound_literal):
2586         Update prototypes.
2587         (in_late_binary_op): Declare.
2588         * c-typeck.c (note_integer_operands): New function.
2589         (in_late_binary_op): New variable.
2590         (decl_constant_value_for_broken_optimization): Move to c-common.c
2591         and rename to decl_constant_value_for_optimization.
2592         (default_function_array_conversion): Do not strip nops.
2593         (default_conversion): Do not call
2594         decl_constant_value_for_broken_optimization.
2595         (build_array_ref): Do not fold result.
2596         (c_expr_sizeof_expr): Fold operand.  Use C_MAYBE_CONST_EXPR for
2597         result when operand is a VLA.
2598         (c_expr_sizeof_type): Update call to groktypename.  Handle
2599         expressions included in type name.  Use C_MAYBE_CONST_EXPR for
2600         result when operand names a VLA type.
2601         (build_function_call): Update call to build_compound_literal.
2602         Only fold result for calls to __builtin_* functions.  Strip
2603         NOP_EXPR from INTEGER_CST returned from such functions.  Fold
2604         the function designator.
2605         (convert_arguments): Fold arguments.  Update call to
2606         convert_for_assignment.
2607         (build_unary_op): Handle increment and decrement of
2608         C_MAYBE_CONST_EXPR.  Move lvalue checks for increment and
2609         decrement earlier.  Fold operand of increment and decrement.
2610         Handle address of C_MAYBE_CONST_EXPR.  Only fold expression being
2611         built for integer operand.  Wrap returns that are INTEGER_CSTs
2612         without being integer constant expressions or that have integer
2613         constant operands without being INTEGER_CSTs.
2614         (lvalue_p): Handle C_MAYBE_CONST_EXPR.
2615         (build_conditional_expr): Add operand ifexp_bcp.  Track whether
2616         result is an integer constant expression or can be used in
2617         unevaluated parts of one and avoid folding and wrap as
2618         appropriate.  Fold operands before possibly doing -Wsign-compare
2619         warnings.
2620         (build_compound_expr): Wrap result for C99 if operands can be used
2621         in integer constant expressions.
2622         (build_c_cast): Update call to digest_init.  Do not ignore
2623         overflow from casting floating-point constants to integers.  Wrap
2624         results that could be confused with integer constant expressions,
2625         null pointer constants or floating-point constants.
2626         (c_cast_expr): Update call to groktypename.  Handle expressions
2627         included in type name.
2628         (build_modify_expr): Handle modifying a C_MAYBE_CONST_EXPR.  Fold
2629         lhs inside possible SAVE_EXPR.  Fold RHS before assignment.
2630         Update calls to convert_for_assignment.
2631         (convert_for_assignment): Take new parameter
2632         null_pointer_constant.  Do not strip nops or call
2633         decl_constant_value_for_broken_optimization.  Set
2634         in_late_binary_op for conversions to boolean.
2635         (store_init_value): Update call to digest_init.
2636         (digest_init): Take new parameter null_pointer_constant.  Do not
2637         call decl_constant_value_for_broken_optimization.  pedwarn for
2638         initializers not constant expressions.  Update calls to
2639         convert_for_assignment.
2640         (constructor_nonconst): New.
2641         (struct constructor_stack): Add nonconst element.
2642         (really_start_incremental_init, push_init_level, pop_init_level):
2643         Handle constructor_nonconst and nonconst element.
2644         (set_init_index): Call constant_expression_warning for array
2645         designators.
2646         (output_init_element): Fold value.  Set constructor_nonconst as
2647         applicable.  pedwarn for initializers not constant expressions.
2648         Update call to digest_init.  Call constant_expression_warning
2649         where constant initializers are required.
2650         (process_init_element): Use c_save_expr.
2651         (c_finish_goto_ptr): Fold expression.
2652         (c_finish_return): Fold return value.  Update call to
2653         convert_for_assignment.
2654         (c_start_case): Fold switch expression.
2655         (c_process_expr_stmt): Fold expression.
2656         (c_finish_stmt_expr): Create C_MAYBE_CONST_EXPR as needed to
2657         ensure statement expression is not evaluated in constant expression.
2658         (build_binary_op): Track whether results are integer constant
2659         expressions or may occur in such, disable folding and wrap results
2660         as applicable.  Fold operands for -Wsign-compare warnings unless
2661         in_late_binary_op.
2662         (c_objc_common_truthvalue_conversion): Handle results folded to
2663         integer constants that are not integer constant expressions.
2664         * doc/extend.texi: Document when typeof operands are evaluated,
2665         that condition of __builtin_choose_expr is an integer constant
2666         expression, and more about use of __builtin_constant_p in
2667         initializers.
2668
2669 2009-03-29  Richard Guenther  <rguenther@suse.de>
2670
2671         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Properly
2672         propagate addresses of array references.
2673
2674 2009-03-29  Steven Bosscher  <steven@gcc.gnu.org>
2675
2676         * regmove.c (perhaps_ends_bb_p): Remove.
2677         (optimize_reg_copy_1): Don't call perhaps_ends_bb_p.  Get basic block
2678         from INSN and check that the main loop stays within that basic block.
2679         (optimize_reg_copy_1, optimize_reg_copy_3, fixup_match_2): Likewise.
2680         (regmove_forward_pass): Split out from regmove_optimize.  Use
2681         FOR_EACH_BB and FOR_BB_INSNS instead of traversing the insns stream.
2682         (regmove_backward_pass): Split out from regmove_optimize.  Use
2683         FOR_EACH_BB_REVERSE and FOR_BB_INSNS_REVERS_SAFE.
2684         (regmove_optimize): Simplify.
2685
2686 2009-03-29  H.J. Lu  <hongjiu.lu@intel.com>
2687
2688         PR target/39545
2689         * config/i386/i386.c (classify_argument): Ignore flexible array
2690         member in struct and warn ABI change.
2691
2692 2009-03-29  H.J. Lu  <hongjiu.lu@intel.com>
2693
2694         * config/i386/i386-protos.h (ix86_agi_dependent): New.
2695
2696         * config/i386/i386.c (ix86_agi_dependent): Rewrite.
2697         (ix86_adjust_cost): Updated.
2698
2699 2009-03-29  Jan Hubicka  <jh@suse.cz>
2700
2701         PR middle-end/28850
2702         * tree-pass.h (pass_cleanup_eh): New function.
2703         (remove_unreachable_regions): Break code handling RTL
2704         to rtl_remove_unreachable_regions; remove ERT_MUST_NOT_THROW
2705         that can not be reached by runtime.
2706         (can_be_reached_by_runtime): New function.
2707         (label_to_region_map): New function.
2708         (num_eh_regions): New function.
2709         (rtl_remove_unreachable_regions): New function.
2710         (convert_from_eh_region_ranges): Call rtl_remove_unreachable_regions.
2711         (remove_eh_region): New function.
2712         * except.h: Include sbitmap and vecprim.
2713         (remove_eh_region, remove_unreachable_regions, label_to_region_map,
2714         num_eh_regions): Declare.
2715         * passes.c (init_optimization_passes): Schedule cleanup_eh.
2716         * Makefile.in (EXCEPT_H): New; replace all uses of except.h by it.
2717         * tree-eh.c (tree_remove_unreachable_handlers): New function.
2718         (tree_empty_eh_handler_p): New function.
2719         (cleanup_empty_eh): New function.
2720         (cleanup_eh): New function.
2721         (pass_cleanup_eh): New function.
2722
2723 2009-03-29  Jan Hubicka  <jh@suse.cz>
2724
2725         * except.c (verify_eh_tree): Fix handling of fun!=cfun; be ready
2726         for removed regions.
2727
2728 2009-03-29  Jan Hubicka  <jh@suse.cz>
2729
2730         * except.c (dump_eh_tree): Dump all datastructures.
2731
2732 2009-03-29  Jan Hubicka  <jh@suse.cz>
2733
2734         * except.c (duplicate_eh_regions_0): Handle AKA bitmap.
2735         (duplicate_eh_regions_1): Likewise.
2736         (duplicate_eh_regions): Likewise; cleanup code gorwing the region
2737         vector; call EH verification.
2738         (foreach_reachable_handler, can_throw_internal_1, can_throw_external_1):
2739         Be ready for region being removed.
2740
2741 2009-03-29  Jan Hubicka  <jh@suse.cz>
2742
2743         * bitmap.c (bitmap_last_set_bit): New function.
2744         * bitmap.h (bitmap_last_set_bit): Declare.
2745
2746 2009-03-29  David Ayers  <ayers@fsfe.org>
2747
2748         PR objc/27377
2749         * c-typeck.c (build_conditional_expr): Emit ObjC warnings
2750         by calling objc_compare_types and surpress warnings about
2751         incompatible C pointers that are compatible ObjC pointers.
2752         
2753 2009-03-29  Adam Nemet  <anemet@caviumnetworks.com>
2754
2755         * cgraphbuild.c (build_cgraph_edges, rebuild_cgraph_edges): Don't
2756         call initialize_inline_failed.
2757         (initialize_inline_failed): Move it from here ...
2758         * cgraph.c (initialize_inline_failed): ... to here.
2759         (cgraph_create_edge): Call initialize_inline_failed rather than
2760         setting inline_failed directly.
2761
2762 2009-03-29  Ben Elliston  <bje@au.ibm.com>
2763
2764         PR target/32542
2765         * sysv4.opt (msdata): Improve comment.
2766         * linux64.h (ASM_SPEC32): Do not pass -memb when -msdata is given.
2767         * sysv4.h (SVR4_ASM_SPEC): Likewise.
2768
2769 2009-03-29  Ben Elliston  <bje@au.ibm.com>
2770
2771         PR target/30451
2772         * config/rs6000/rs6000.md (*movti_ppc64): Correct the order of
2773         load and store attributes.
2774
2775 2009-03-29  Ben Elliston  <bje@au.ibm.com>
2776
2777         * config/i386/i386.c (enum ix86_builtins): Add IX86_BUILTIN_HUGE_VALQ.
2778         (ix86_init_builtins): Add built-in function __builtin_huge_valq.
2779         (ix86_expand_builtin): Handle IX86_BUILTIN_HUGE_VALQ.
2780         * doc/extend.texi (X86 Built-in Functions): Add index entries for
2781         __builtin_infq and __builtin_huge_valq.
2782
2783 2009-03-28  Anatoly Sokolov  <aesok@post.ru>
2784
2785         * config/avr/avr.c (avr_mcu_t): Add atmega8c1, atmega16c1 and
2786         atmega8m1 devices.
2787         * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
2788         * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.)
2789
2790 2009-03-28  Xinliang David Li  <davidxl@google.com>
2791
2792         * tree-ssa-ccp.c (ccp_finalize): Add dbg_count support. 
2793         (do_dbg_cnt): New function.
2794
2795 2009-03-28  Jan Hubicka  <jh@suse.cz>
2796
2797         Merge from pretty-ipa:
2798
2799         2009-03-27  Jan Hubicka  <jh@suse.cz>
2800
2801         * cgraph.c (dump_cgraph_node): Add replace output flag by process.
2802         * tree-pass.h (function_called_by_processed_nodes_p): Declare.
2803         * passes.c (function_called_by_processed_nodes_p): New.
2804         * ipa-pure-const.c (check_call): Fix handling of operands.
2805         (analyze_function): Dump debug output for skipped bodies.
2806         (local_pure_const): Use function_called_by_processed_nodes_p.
2807         * dwarf2out.c (reference_to_unused): Use output.
2808         * passes.c (do_per_function_toporder): Likewise.
2809
2810         2008-11-12  Jan Hubicka  <jh@suse.cz>
2811
2812         * tree-pass.h (pass_fixup_cfg, pass_local_pure_const): Declare.
2813         * ipa-pure-const.c (funct_state_d): Add can throw field; make
2814         state_set_in_source enum
2815         (check_decl): Ignore memory tags; do not set fake looping flags;
2816         dump diagnostics.
2817         (check_operand, check_tree, check_rhs_var, check_lhs_var,
2818         get_asm_expr_operands, scan_function_op, scan_function_stmt): Remove.
2819         (check_call, analyze_function): Rewrite.
2820         (check_stmt): New.
2821         (add_new_function): Update call of analyze_function.
2822         (generate_summary): Add call of analyze_function.
2823         (propagate): Propagate can_throw; handle state_set_in_source correctly.
2824         (local_pure_const): New function.
2825         (pass_local_pure_const): New pass.
2826         * ipa-inline.c (inline_transform): Set after_inlining.
2827         * tree-eh.c (stmt_can_throw_external): New.
2828         * tree-optimize.c (execute_fixup_cfg): Do not set after_inlining;
2829         work with aliasing built.
2830         * tree-flow.h (stmt_can_throw_external): New.
2831         * passes.c (init_optimization_passes): Schedule fixup_cfg pass early;
2832         and local pure/const pass in early and late optimization queue.
2833
2834 2009-03-28  Martin Jambor  <mjambor@suse.cz>
2835
2836         * fold-const.c (get_pointer_modulus_and_residue): New parameter
2837         allow_func_align.
2838         (fold_binary): Allow function decl aligment consideration is the
2839         second argument is integer constant one.
2840         * tree-ssa-forwprop.c (simplify_bitwise_and): New function.
2841         (tree_ssa_forward_propagate_single_use_vars): Handle assing statements
2842         with BIT_AND_EXPR on the RHS by calling simplify_bitwise_and.
2843
2844 2009-03-28  Jan Hubicka  <jh@suse.cz>
2845
2846         * dwarf2out.c (dwarf2out_begin_prologue): Use crtl->nothrow
2847         * tree-eh.c (stmt_could_throw_p): Remove check for WEAK decls.
2848         * function.h (rtl_data): Add nothrow flag.
2849         * except.c (set_nothrow_function_flags): Use crtl->nothrow;
2850         set DECL_NOTHROW for AVAILABLE functions.
2851
2852 2009-03-28  Jakub Jelinek  <jakub@redhat.com>
2853
2854         * config/rs6000/rs6000-c.c (rs6000_macro_to_expand): If macro
2855         following vector keyword has expansion starting with pixel or bool
2856         keyword, expand vector to __vector and pixel or bool to __pixel or
2857         __bool.
2858
2859         PR c++/39554
2860         * opts.c (warning_disallowed_functions, warn_disallowed_functions,
2861         warn_if_disallowed_function_p): Removed.
2862         (common_handle_option): Don't handle OPT_Wdisallowed_function_list_.
2863         * c-parser.c (c_parser_postfix_expression_after_primary): Don't call
2864         warning_if_disallowed_function_p.
2865         * flags.h (warn_if_disallowed_function_p,
2866         warn_disallowed_functions): Removed.
2867         * common.opt (Wdisallowed-function-list=): Removed.
2868         * doc/invoke.texi (-Wdisallowed-function-list=): Removed.
2869
2870 2009-03-28  Richard Guenther  <rguenther@suse.de>
2871
2872         PR tree-optimization/38723
2873         * tree-ssa-pre.c (compute_avail): Add all default definitions to
2874         the entry block.
2875
2876 2009-03-28  Jan Hubicka  <jh@suse.cz>
2877
2878         * tree-ssa-structalias.c (ipa_pta_execute): Fix bogus node->analyzed
2879         test introduced by my previous patch.
2880
2881 2009-03-28  Richard Guenther  <rguenther@suse.de>
2882
2883         * tree-ssa-copy.c (copy_prop_visit_phi_node): Do not leave
2884         the PHIs value undefined.
2885
2886 2009-03-28  Jan Hubicka  <jh@suse.cz>
2887
2888         * tree-pass.h (pass_fixup_cfg): New pass.
2889         * ipa-inline.c (inline_transform): Set
2890         always_inline_functions_inlined/after_inlining.
2891         * tree-optimize.c (execute_fixup_cfg): Do not set them here.
2892         (pass_fixup_cfg): New pass.
2893         * passes.c (init_optimization_passes): Add fixup_cfg.
2894
2895 2009-03-28  Richard Guenther  <rguenther@suse.de>
2896
2897         PR tree-optimization/38458
2898         * tree-ssa-copy.c (copy_prop_visit_phi_node): For the first
2899         argument use the arguments copy-of value.
2900
2901 2009-03-28  Richard Guenther  <rguenther@suse.de>
2902
2903         PR tree-optimization/38180
2904         * tree-ssa-ccp.c (get_default_value): Simplify.
2905         (likely_value): Likewise.
2906         (surely_varying_stmt_p): Properly handle VOP case.
2907         (ccp_initialize): Likewise.
2908         (ccp_fold): Handle propagating through *&.
2909         (fold_const_aggregate_ref): Also handle decls.
2910
2911 2009-03-28  Jan Hubicka  <jh@suse.cz>
2912
2913         * cgraph.c (dump_cgraph_node): Add replace output flag by process.
2914         * cgraph.h (cgraph_node): Likewise.
2915         * cgraphunit.c (cgraph_process_new_functions): Set process flag.
2916         (cgraph_reset_node): Use process flag.
2917         (cgraph_mark_functions_to_output): Likewise.
2918         (cgraph_expand_function): Likewise.
2919         (cgraph_expand_all_functions): Likewise.
2920         (cgraph_output_in_order): Likewise.
2921         * dwarf2out.c (reference_to_unused): Likewise.
2922         * passes.c do_per_function_toporder): Likewise.
2923
2924 2009-03-28  Jan Hubicka  <jh@suse.cz>
2925
2926         Bring from lto-branch:
2927
2928         2008-09-03  Doug Kwan  <dougkwan@google.com>
2929
2930         * cgraphbuild.c (initialize_inline_failed): Use cgraph_inline_failed_t
2931         enums instead of reason strings.
2932         * cgraph.c (cgraph_create_edge): Same.
2933         (cgraph_inline_failed_string): New function.
2934         * cgraph.h (cgraph_inline_failed_t): New enum type.
2935         (cgraph_inline_failed_string): New prototype.
2936         (struct cgraph_edge): Change type of INLINED_FAILED from constant
2937         char pointer to cgraph_inline_failed_t.
2938         (cgraph_inline_p): Adjust prototype to use cgraph_inline_failed_t.
2939         (cgraph_default_inline_p): Ditto.
2940         * gcc/cgraphunit.c (cgraph_inline_p): Change type of parameter REASON
2941         to cgraph_inline_failed_t pointer.
2942         * cif-code.def: New file.
2943         * ipa-inline.c (cgraph_mark_inline_edge): Use an enum instead of a
2944         reason string.
2945         (cgraph_check_inline_limits): Change type of REASON to pointer to
2946         cgraph_inline_failed_t.  Replace reason strings with enums.
2947         (cgraph_default_inline_p): Ditto.
2948         (cgraph_recursive_inlining_p): Ditto.
2949         (update_caller_keys): Change type of FAILED_REASON to
2950         cgraph_inline_failed_t.
2951         (cgraph_set_inline_failed): Change type of REASON to pointer to
2952         cgraph_inline_failed_t.  Call cgraph_inline_failed_string to
2953         convert enums to strings for text output.
2954         (cgraph_decide_inlining_of_small_function): Change FAILED_REASON
2955         to be of type cgraph_inline_failed_t.  Replace reason strings with
2956         enums.  Call cgraph_inline_failed_string to covert enums
2957         to strings for text output.
2958         (cgraph_decide_inlining): Replace reason strings with enums.
2959         (cgraph_decide_inlining_incrementally): Change type of FAILED_REASON
2960         to cgraph_inline_failed_t type.  Call cgraph_inline_failed_string
2961         for text output.
2962         * tree-inline.c (expand_call_inline): Change type of REASON
2963         to cgraph_inline_failed_t.  Replace reason strings with enums.
2964         Call cgraph_inline_failed_string for text output.
2965         * Makefile.in (CGRAPH_H): Add cif-code.def to dependencies.
2966         (cgraph.o): Ditto.
2967
2968 2009-03-28  Jan Hubicka  <jh@suse.cz>
2969
2970         * cgraph.c (cgraph_node, cgraph_remove_node, dump_cgraph_node,
2971         cgraph_clone_node): Remove master clone handling.
2972         (cgraph_is_master_clone, cgraph_master_clone): Remove.
2973         * cgraph.h (master_clone): Remove.
2974         (cgraph_is_master_clone, cgraph_master_clone): Remove.
2975         * ipa-type-escape.c (type_escape_execute): Remove use of master clone.
2976         (tree-ssa-structalias.c (ipa_pta_execute): Likewise.
2977
2978 2009-03-28  Jan Hubicka  <jh@suse.cz>
2979
2980         * cgraph.c (cgraph_function_body_availability): Functions declared
2981         inline are always safe to assume that it is not going to be replaced.
2982
2983 2009-03-28  Richard Guenther  <rguenther@suse.de>
2984
2985         PR tree-optimization/38513
2986         * tree-ssa-pre.c (eliminate): Remove redundant stores.
2987         * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle
2988         EXC_PTR_EXPR and FILTER_EXPR.
2989         (get_ref_from_reference_ops): Likewise.
2990
2991 2009-03-28  Richard Guenther  <rguenther@suse.de>
2992
2993         PR tree-optimization/38968
2994         * tree-vect-analyze.c (vect_compute_data_ref_alignment):
2995         Use FLOOR_MOD_EXPR to compute misalignment.
2996
2997 2009-03-28  Richard Guenther  <rguenther@suse.de>
2998
2999         PR tree-optimization/37795
3000         * tree.h (combine_comparisons): Declare.
3001         * fold-const.c (combine_comparisons): Export.
3002         * tree-ssa-ifcombine.c (ifcombine_ifandif): Optimize two successive
3003         comparisons.
3004         (ifcombine_iforif): Use combine_comparisons.
3005
3006 2009-03-28  Jan Hubicka  <jh@suse.cz>
3007
3008         * tree-eh.c (inlinable_call_p): New function.
3009         (make_eh_edges): Use it.
3010         (verify_eh_edges): Use it.
3011         (stmt_can_throw_external, stmt_can_throw_internal): Use it.
3012         * except.c (reachable_next_level): Add inlinable_function argument
3013         (sjlj_find_directly_reachable_regions): Update.
3014         (add_reachable_handler): Do not set saw_any_handlers.
3015         (reachable_next_level): Handle MUST_NOT_THROW more curefully.
3016         (foreach_reachable_handler, can_throw_internal_1, can_throw_external_1):
3017         Add new inlinable call parameter.
3018         (can_throw_internal, can_throw_external): Update.
3019         * except.h (can_throw_internal_1, can_throw_external_1,
3020         foreach_reachable_handler): Update declaration.
3021
3022 2009-03-28  Joseph Myers  <joseph@codesourcery.com>
3023
3024         * config/arm/t-arm-coff, config/h8300/coff.h,
3025         config/i386/i386-aout.h, config/i386/i386-coff.h,
3026         config/libgloss.h, config/m68k/coff.h, config/m68k/m68k-aout.h,
3027         config/pdp11/2bsd.h, config/rs6000/aix41.h,
3028         config/rs6000/aix41.opt, config/rs6000/t-newas, config/sh/coff.h,
3029         fix-header.c, fixproto, gen-protos.c, protoize.c, scan-decls.c,
3030         scan-types.sh, scan.c, scan.h, sort-protos, sys-protos.h,
3031         sys-types.h: Remove.
3032         * Makefile.in: Remove protoize and fixproto support and references
3033         in comments.
3034         (SYSCALLS.c.X-warn, TARGET_GETGROUPS_T, STMP_FIXPROTO,
3035         PROTOIZE_INSTALL_NAME, UNPROTOIZE_INSTALL_NAME, FIXPROTO_DEFINES):
3036         Remove.
3037         (ALL_HOST_OBJS): Remove $(PROTO_OBJS).
3038         (MOSTLYCLEANFILES): Remove protoize$(exeext) and
3039         unprotoize$(exeext).
3040         (rest.encap): Don't depend on $(STMP_FIXPROTO)
3041         (.PHONY): Don't depend on proto.
3042         (libgcc-support): Don't depend on $(STMP_FIXPROTO).
3043         (proto, PROTO_OBJS, protoize$(exeext), unprotoize$(exeext),
3044         protoize.o, unprotoize.o, SYSCALLS.c.X, test-protoize-simple,
3045         deduced.h, GEN_PROTOS_OBJS, build/gen-protos$(build_exeext),
3046         build/gen-protos.o, build/scan.o, xsys-protos.h,
3047         build/fix-header$(build_exeext), build/fix-header.o,
3048         build/scan-decls.o, fixhdr.ready, stmp-fixproto,
3049         stmp-install-fixproto): Remove.
3050         (mostlyclean): Don't remove xsys-protos.hT, SYSCALLS.c.X,
3051         SYSCALLS.c or fixproto files.
3052         (install-common): Don't install protoize.
3053         (install-headers-tar, install-headers-cpio, install-headers-cp):
3054         Don't depend on $(STMP_FIXPROTO).
3055         (install-mkheaders): Don't depend on $(STMP_FIXPROTO).  Don't
3056         install fixproto files or write out fixproto settings.
3057         (uninstall): Don't uninstall protoize.
3058         * config.gcc (use_fixproto): Remove.
3059         (arm-*-coff*, armel-*-coff*, h8300-*-*, i[34567]86-*-aout*,
3060         i[34567]86-*-coff*, m68k-*-aout*, m68k-*-coff*, pdp11-*-bsd,
3061         rs6000-ibm-aix4.[12]*, powerpc-ibm-aix4.[12]*, sh-*-*): Remove.
3062         * config/m32r/t-linux (STMP_FIXPROTO): Remove.
3063         * config/m68k/m68k.c: Remove M68K_TARGET_COFF-conditional code.
3064         * config/mips/t-iris (FIXPROTO_DEFINES): Remove.
3065         * config/pa/t-pa-hpux (FIXPROTO_DEFINES): Remove.
3066         * config/pdp11/pdp11.c: Remove TWO_BSD-conditional code.
3067         * config/t-svr4 (FIXPROTO_DEFINES): Remove.
3068         * config/t-vxworks (STMP_FIXPROTO): Remove.
3069         * configure.ac (AC_TYPE_GETGROUPS, TARGET_GETGROUPS_T,
3070         STMP_FIXPROTO): Remove.
3071         * config.in, configure: Regenerate.
3072         * crtstuff.c (gid_t, uid_t): Don't undefine.
3073         * doc/install.texi: Change m68k-coff to m68k-elf in example.
3074         (arm-*-coff, arm-*-aout: Remove target entries.
3075         (*-ibm-aix*): Mention removal of support for AIX 4.2 and older.
3076         Remove mention of AIX 4.1.
3077         (m68k-*-*): Remove mention of m68k-*-aout and m68k-*-coff*.
3078         * doc/invoke.texi (Running Protoize): Remove.
3079         * doc/trouble.texi (Actual Bugs): Remove mention of fixproto.
3080         (Protoize Caveats): Remove.
3081         * tsystem.h: Update comments on headers assumed to exist.
3082
3083 2009-03-27  Vladimir Makarov  <vmakarov@redhat.com>
3084
3085         * genautomata.c: Add a new year to the copyright.  Add a new
3086         reference.
3087         (struct insn_reserv_decl): Add comments for member bypass_list.
3088         (find_bypass): Remove.
3089         (insert_bypass): New.
3090         (process_decls): Use insert_bypass.
3091         (output_internal_insn_latency_func): Output all bypasses with the
3092         same input insn in one switch case.
3093
3094         * rtl.def (define_bypass): Describe bypass choice.
3095         * doc/md.texi (define_bypass): Ditto.
3096
3097 2009-03-27  Richard Guenther  <rguenther@suse.de>
3098
3099         * gimplify.c (mark_addressable): Export.
3100         * tree-flow.h (mark_addressable): Declare.
3101         * tree-ssa-loop-manip.c (create_iv): Mark the base addressable.
3102         * tree-ssa.c (verify_phi_args): Verify that address taken
3103         variables have TREE_ADDRESSABLE set.
3104
3105 2009-03-27  Richard Guenther  <rguenther@suse.de>
3106
3107         * fold-const.c (build_fold_addr_expr_with_type_1): Rename back to ...
3108         (build_fold_addr_expr_with_type): ... this.  Remove in_fold handling.
3109         Do not mark decls TREE_ADDRESSABLE.
3110         (build_fold_addr_expr): Adjust.
3111         (fold_addr_expr): Remove.
3112         (fold_unary): Use build_fold_addr_expr.
3113         (fold_comparison): Likewise.
3114         (split_address_to_core_and_offset): Likewise.
3115         * coverage.c (tree_coverage_counter_addr): Mark the array decl
3116         TREE_ADDRESSABLE.
3117         * gimplify.c (mark_addressable): Do not exclude RESULT_DECLs.
3118         (gimplify_modify_expr_to_memcpy): Mark source and destination
3119         addressable.
3120         * omp-low.c (create_omp_child_function): Mark the object decl
3121         TREE_ADDRESSABLE.
3122         (lower_rec_input_clauses): Mark the var we take the address of
3123         TREE_ADDRESSABLE.
3124         (lower_omp_taskreg): Mark the sender decl TREE_ADDRESSABLE.
3125
3126 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3127
3128         PR middle-end/39315
3129         * cfgexpand.c (expand_one_stack_var_at): Change alignment
3130         limit to MAX_SUPPORTED_STACK_ALIGNMENT.
3131
3132 2009-03-27  Richard Guenther  <rguenther@suse.de>
3133
3134         PR tree-optimization/39120
3135         * tree-ssa-structalias.c (handle_rhs_call): Fill out return
3136         constraints.
3137         (handle_lhs_call): Process return constraints.  Add escape
3138         constraints if necessary.
3139         (handle_const_call): Fill out return constraints.  Make nested
3140         case more precise.  Avoid consttmp if possible.
3141         (handle_pure_call): Fill out return constraints.  Avoid
3142         callused if possible.
3143         (find_func_aliases): Simplify call handling.
3144
3145 2009-03-27  Richard Guenther  <rguenther@suse.de>
3146
3147         PR tree-optimization/39120
3148         * tree-ssa-structalias.c (do_sd_constraint): Do not use CALLUSED
3149         as a representative.
3150         (solve_graph): Do propagate CALLUSED.
3151         (handle_pure_call): Use a scalar constraint from CALLUSED for
3152         the return value.
3153         (find_what_p_points_to): CALLUSED shall not appear in poins-to
3154         solutions.
3155
3156 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3157
3158         PR c/39323
3159         * c-common.c (handle_aligned_attribute): Properly check alignment
3160         overflow.  Use (1U << i) instead of (1 << i).
3161
3162         * emit-rtl.c (get_mem_align_offset): Use "unsigned int" for align.
3163
3164         * expr.h (get_mem_align_offset): Updated.
3165
3166         * tree.h (tree_decl_common): Change align to "unsigned int" and
3167         move it before pointer_alias_set.
3168
3169 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3170             Jakub Jelinek  <jakub@redhat.com>
3171
3172         PR target/38034
3173         * config/ia64/sync.md (cmpxchg_rel_<mode>): Replace input
3174         gr_register_operand with gr_reg_or_0_operand.
3175         (cmpxchg_rel_di): Likewise.
3176         (sync_lock_test_and_set<mode>): Likewise.
3177
3178 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3179
3180         * jump.c (rtx_renumbered_equal_p): Use subreg_get_info.
3181         (true_regnum): Likewise.
3182
3183         * rtlanal.c (subreg_info): Moved to ...
3184         * rtl.h (subreg_info): Here.  New.
3185         (subreg_get_info): New.
3186
3187         * rtlanal.c (subreg_get_info): Make it extern.
3188
3189 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3190
3191         PR target/39472
3192         * config/i386/i386.c (ix86_abi): New.
3193         (override_options): Handle -mabi=.
3194         (ix86_function_arg_regno_p): Replace DEFAULT_ABI with ix86_abi.
3195         (ix86_call_abi_override): Likewise.
3196         (init_cumulative_args): Likewise.
3197         (function_arg_advance): Likewise.
3198         (function_arg_64): Likewise.
3199         (function_arg): Likewise.
3200         (ix86_pass_by_reference): Likewise.
3201         (ix86_function_value_regno_p): Likewise.
3202         (ix86_build_builtin_va_list_abi): Likewise.
3203         (setup_incoming_varargs_64): Likewise.
3204         (is_va_list_char_pointer): Likewise.
3205         (ix86_init_machine_status): Likewise.
3206         (ix86_reg_parm_stack_space): Use enum calling_abi on call_abi.
3207         (ix86_function_type_abi): Return enum calling_abi.  Rewrite
3208         for 64bit.  Replace DEFAULT_ABI with ix86_abi.
3209         (ix86_function_abi): Make it static and return enum calling_abi.
3210         (ix86_cfun_abi): Return enum calling_abi.  Replace DEFAULT_ABI
3211         with ix86_abi.
3212         (ix86_fn_abi_va_list): Updated.
3213
3214         * config/i386/i386.h (ix86_abi): New.
3215         (STACK_BOUNDARY): Replace DEFAULT_ABI with ix86_abi.
3216         (CONDITIONAL_REGISTER_USAGE): Likewise.
3217         (CUMULATIVE_ARGS): Change call_abi type to enum calling_abi.
3218         (machine_function): Likewise.
3219
3220         * config/i386/i386.md (untyped_call): Replace DEFAULT_ABI
3221         with ix86_abi.
3222         * config/i386/cygming.h (TARGET_64BIT_MS_ABI): Likewise.
3223         (STACK_BOUNDARY): Likewise.
3224         * config/i386/mingw32.h (EXTRA_OS_CPP_BUILTINS): Likewise.
3225
3226         * config/i386/i386.opt (mabi=): New.
3227
3228         * config/i386/i386-protos.h (ix86_cfun_abi): Changed to
3229         return enum calling_abi.
3230         (ix86_function_type_abi): Likewise.
3231         (ix86_function_abi): Removed.
3232
3233         * doc/invoke.texi: Document -mabi= option for x86.
3234
3235 2009-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
3236
3237         * builtins.c (real_dconstp): Delete.
3238         (fold_builtin_logarithm): Remove inaccurate log(e) special case.
3239
3240 2009-03-27  Dodji Seketeli  <dodji@redhat.com>
3241             Jakub Jelinek  <jakub@redhat.com>
3242
3243         PR debug/37959
3244         * dwarf2out.c (dwarf_attr_name): Handle DW_AT_explicit attribute.
3245         (gen_subprogram_die): When a function is explicit, generate the
3246         DW_AT_explicit attribute.
3247         * langhooks.h (struct lang_hooks_for_decls): Add
3248         function_decl_explicit_p langhook.
3249         * langhooks-def.h (LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P): Define.
3250         (LANG_HOOKS_DECLS): Add LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P.
3251
3252 2009-03-27  Jakub Jelinek  <jakub@redhat.com>
3253
3254         * builtins.c (fold_builtin_memory_op): Optimize memmove
3255         into memcpy if we can prove source and destination don't overlap.
3256
3257         * tree-inline.c: Include gt-tree-inline.h.
3258         (clone_fn_id_num): New variable.
3259         (clone_function_name): New function.
3260         (tree_function_versioning): Use it.
3261         * Makefile.in (GTFILES): Add tree-inline.c.
3262
3263 2009-03-27  Mark Mitchell  <mark@codesourcery.com>
3264
3265         * BASE-VER: Change to 4.5.0.
3266
3267 2009-03-27  Xinliang David Li  <davidxl@google.com>
3268
3269         PR tree-optimization/39557
3270         * tree-ssa.c (warn_uninitialized_vars): free postdom info.
3271
3272 2009-03-27  Xinliang David Li  <davidxl@google.com>
3273
3274         PR tree-optimization/39548
3275         * tree-ssa-copy.c (copy_prop_visit_phi_node): Add copy 
3276         candidate check.
3277
3278 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3279
3280         * c-common.c (pointer_int_sum): Use %wd on return from
3281         tree_low_cst.
3282
3283 2009-03-27  H.J. Lu  <hongjiu.lu@intel.com>
3284
3285         * c-common.c (pointer_int_sum): Use HOST_WIDE_INT_PRINT_DEC
3286         on return from tree_low_cst.
3287
3288 2009-03-27  Andrew Pinski  <andrew_pinski@playstation.sony.com>
3289
3290         PR c++/36799
3291         * ginclude/stdarg.h (va_copy): Define also for
3292         __GXX_EXPERIMENTAL_CXX0X__.
3293
3294 2009-03-27  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
3295
3296         PR c++/35652
3297         * builtins.h (c_strlen): Do not warn here.
3298         * c-typeck.c (build_binary_op): Adjust calls to pointer_int_sum.
3299         * c-common.c (pointer_int_sum): Take an explicit location.
3300         Warn about offsets out of bounds.
3301         * c-common.h (pointer_int_sum): Adjust declaration.
3302
3303 2009-03-26  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3304
3305         * doc/invoke.texi (i386 and x86-64 Windows Options): Fix texinfo
3306         markup glitch.
3307
3308 2009-03-26  Jakub Jelinek  <jakub@redhat.com>
3309
3310         PR c++/39554
3311         * opts.c (warn_if_disallowed_function_p): Don't assume
3312         get_callee_fndecl must return non-NULL.
3313
3314 2009-03-26  Vladimir Makarov  <vmakarov@redhat.com>
3315
3316         PR rtl-optimization/39522
3317         * reload1.c (reload_as_needed): Invalidate reg_last_reload_reg too
3318         when reg_reloaded_valid is set.
3319
3320 2009-03-26  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
3321
3322         * config/spu/divv2df3.c: New file.
3323         * config/spu/t-spu-elf (LIB2FUNCS_STATIC_EXTRA): Add it.
3324         (DPBIT_FUNCS): Filter out _div_df.
3325
3326 2009-03-26  Bernd Schmidt  <bernd.schmidt@analog.com>
3327
3328         * config/bfin/bfin.c (bfin_optimize_loop): If the LSETUP goes before
3329         a jump insn, count that jump in the distance to the loop start.
3330
3331 2009-03-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3332
3333         PR target/39523
3334         * config/sh/sh.c (calc_live_regs): Fix condition for global
3335         registers except PIC_OFFSET_TABLE_REGNUM.
3336
3337 2009-03-25  Kai Tietz  <kai.tietz@onevision.com>
3338
3339         PR/39518
3340         * doc/invoke.texi (-mconsole): New.
3341         (-mcygwin): New.
3342         (-mno-cygwin): New.
3343         (-mdll): New.
3344         (-mnop-fun-dllimport): New.
3345         (-mthread): New.
3346         (-mwin32): New.
3347         (-mwindows): New.
3348         (sub section "i386 and x86-64 Windows Options"): New.
3349
3350 2009-03-25  Ralf Cors├ępius <ralf.corsepius@rtems.org>
3351
3352         * config/arm/rtems-elf.h: Remove LINK_GCC_C_SEQUENCE_SPEC.
3353         * config/rs6000/t-rtems: Remove MULTILIB_EXTRA_OPTS.
3354
3355 2009-03-25  Richard Guenther  <rguenther@suse.de>
3356
3357         PR middle-end/39497
3358         * Makefile.in (dfp.o-warn): Use -fno-strict-aliasing instead
3359         of -Wno-error.
3360
3361 2009-03-25  Andrey Belevantsev  <abel@ispras.ru>
3362
3363         * config/ia64/ia64.c (ia64_set_sched_flags): Zero spec_info->mask when
3364         neither of haifa/selective schedulers are working.
3365
3366 2009-03-25  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
3367
3368         * doc/invoke.texi (Debugging Options): Fix description of
3369         -fno-merge-debug-strings.
3370