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* loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
2
3         * loop-iv.c (iv_analysis_loop_init): Use df in more conservative way.
4
5 2006-01-20  Richard Sandiford  <richard@codesourcery.com>
6
7         * stmt.c (case_bit_test_cmp): Stabilize the sort using code
8         label numbers.
9
10 2006-01-20  Richard Guenther  <rguenther@suse.de>
11         Steven Bosscher <stevenb.gcc@gmail.com>
12
13         PR rtl-optimization/24626
14         * cfgloopmanip.c (lv_adjust_loop_entry_edge): Don't set
15         EDGE_TRUE_VALUE if in RTL mode.
16
17         Revert
18         2005-03-30 Mostafa Hagog <mustafa@il.ibm.com>
19         * cfgrtl.c (rtl_verify_flow_info_1): Fix.
20
21 2006-01-20  Dirk Mueller  <dmueller@suse.com>
22
23         PR c++/5520
24         * c-parser.c (c_parser_if_body): Use build_empty_stmt()
25         instead of a special NOP marker.
26         * c-typeck.c (c_finish_if_stmt): Remove obsoleted special
27         NOP marker handling.
28         * c-common.h (empty_body_warning): Add forward declaration.
29         * c-common.c (empty_body_warning): Add (from c_finish_if_stmt).
30         Now uses IS_EMPTY_STMT() instead of special NOP markers.
31
32 2005-01-20  Paul Brook  <paul@codesourcery.com>
33
34         * Makefile.in (lang_checks): Keep going if mkdir fails.
35
36 2005-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
37
38         * df-scan.c (df_scan_free_bb_info): Added basic block parameter to
39         be able to clean out basic block when not necessary.
40         (df_scan_free): Fixed to properly delete information if df is
41         unused before calling df_finish.
42         (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink,
43         df_insn_create_insn_record, df_bb_refs_record): Fixed formatting
44         or comment typos.
45         (df_bb_refs_delete): New function.
46         (df_refs_delete): Moved per block code to df_bb_refs_delete.
47         * df-core.c (df_set_blocks): Added code to properly clean out
48         unused blocks if they are not part of the blocks to consider.
49         Added additional null check.
50         (df_compact_blocks): Added basic block parameter to free_bb_fun to
51         be able to clean out basic block when not necessary
52         * df.h (df_free_bb_function): Ditto.
53         (df_bb_refs_delete): New function.
54         * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info,
55         df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added
56         basic block parameter to be able to clean out basic block when not
57         necessary.
58         (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test.
59         (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free):
60         Fixed to properly delete information if df is unused before
61         calling df_finish.
62
63 2005-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>
64
65         PR rtl-optimization/25799 
66         * df-problems.c (df_ru_confluence_n, df_rd_confluence_n):
67         Corrected confluence operator to remove bits from op2 before oring
68         with op1 rather than removing bits from op1.
69         (df_ru_transfer_function): Corrected test on wrong bitmap which
70         caused infinite loop.  Both of these problems were introduced in
71         the dataflow rewrite.
72
73 2006-01-19  DJ Delorie  <dj@redhat.com>
74
75         * reload1.c (find_reload_regs): Note the details of reload
76         failures in the dump file.
77         (spill_failure): Likewise.
78
79 2006-01-20  Zdenek Dvorak <dvorakz@suse.cz>
80
81         * loop-iv.c: Include df.h and hashtab.h.
82         (enum iv_grd_result): New enum.
83         (DF_REF_IV, DF_REF_IV_SET): New macros.
84         (struct biv_entry): New.
85         (df, bivs): New global variables.
86         (struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
87         assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
88         Removed.
89         (clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
90         iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
91         analyzed_for_bivness_p, record_biv): New functions.
92         (iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
93         get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
94         iv_analyze, biv_p, iv_analysis_done): Work with df representation of
95         UD chains.
96         (iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
97         analysed.
98         (iv_number_of_iterations): Use new interface to iv analysis.
99         * loop-unroll.c: Do not include varray.h.
100         (analyze_iv_to_split_insn): Use new interface to iv
101         analysis.
102         * loop-unswitch.c (may_unswitch_on): Ditto.
103         * df.c (df_bitmaps_free): Only work for bbs for that structures are
104         allocated.
105         (df_bb_modify): Realloc tables to the new index.
106         (df_find_use): New function.
107         * df.h (df_find_use): Declare.
108         * optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
109         outmode.
110         * cfgloop.h (struct rtx_iv): Remove analysed field.
111         (iv_get_reaching_def): Removed.
112         (iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
113         * Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
114         (loop-iv.o): Add df.h and hashtab.h dependency.
115         * df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
116
117 2006-01-20  Alan Modra  <amodra@bigpond.net.au>
118
119         * libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended
120         Double TFmode.
121         (__floatundisf, __floatundidf): Likewise.
122         * libgcc2.h (IS_IBM_EXTENDED): Define.
123
124 2006-01-19  DJ Delorie  <dj@redhat.com>
125
126         * config/m32c/m32c.h (REG_ALLOC_ORDER): Define.
127
128 2006-01-19  Paul Brook  <paul@codesourcery.com>
129
130         * gcc/config/arm/arm.c (arm_compute_func_type): Treat all functions
131         as nothrow when unwinding tables are disabled.
132
133 2006-01-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
134
135         PR testsuite/25171
136         * c-decl.c (check_bitfield_type_and_width): Don't issue pedwarn "type
137         of bit-field" when in system header.
138
139 2006-01-19  DJ Delorie  <dj@redhat.com>
140
141         * config/m32c/m32c.c (m32c_prepare_shift): Add code to deal with
142         the 16 bit shift limit of the m16c.
143
144 2006-01-19  Andrew Pinski  <pinskia@physics.uc.edu>
145
146         PR target/22099
147         * config/i386/i386.md (builtin_setjmp_receiver): Don't emit the label.
148         * config/i386/i386.c (output_set_got): Output the label if we have one
149         for the TARGET_DEEP_BRANCH_PREDICTION case.
150
151 2006-01-19  Jan Hubicka  <jh@suse.cz>
152             H.J. Lu  <hongjiu.lu@intel.com>
153             Evandro Menezes <evandro.menezes@amd.com>
154
155         * invoke.texi (generic): Document
156         (i686) Update.
157         * config.gcc: Make x86_64-* and i686-* default to generic tunning.
158         * i386.h (TARGET_GENERIC32, TARGET_GENERIC64, TARGET_GENERIC,
159         TARGET_USE_INCDEC, TARGET_PAD_RETURNS): New macros.
160         (x86_use_incdec, x86_pad_returns): New variables
161         (TARGET_CPU_DEFAULT_generic): New constant
162         (TARGET_CPU_DEFAULT_NAMES): Add generic.
163         (enum processor_type): Add generic32 and generic64.
164         * i386.md (cpu attribute): Add generic32/generic64
165         (movhi splitter): Behave sanely when both partial_reg_dependency and
166         partial_reg_stall are set.
167         (K8 splitters): Enable for generic as well.
168         * predicates.md (incdec_operand): Use TARGET_INCDEC
169         (aligned_operand): Avoid memory mismatch stalls.
170         * athlon.md: Enable for generic64, new patterns for 128bit moves.
171         * ppro.md: Enable for generic32
172         * i386.c (generic64_cost, generic32_cost): New.
173         (m_GENERIC32, m_GENERIC64, m_GENERIC): New macros.
174         (x86_use_leave): Enable for generic64.  (x86_use_sahf,
175         x86_ext_80387_constants): Enable for generic32.  (x86_push_memory,
176         x86_movx, x86_unroll_strlen, x86_deep_branch, x86_use_simode_fiop,
177         x86_use_cltd, x86_promote_QImode, x86_sub_esp_4, x86_sub_esp_8,
178         x86_add_esp_4, x86_add_esp_8, x86_integer_DFmode_moves,
179         x86_partial_reg_dependency, x86_memory_mismatch_stall,
180         x86_accumulate_outgoing_args, x86_prologue_using_move,
181         x86_epilogue_using_move, x86_arch_always_fancy_math_387,
182         x86_sse_partial_reg_dependency, x86_four_jump_limit, x86_schedule):
183         Enable for generic.
184         (x86_use_incdec, x86_pad_returns): New.
185         (override_options): Add generic32 and generic64, translate "generic"
186         to generic32/generic64 and "i686" to "generic32", refuse
187         "generic32"/"generic64" as arch target.
188         (ix86_issue_rate, ix86_adjust_cost): Handle generic as athlon.
189         (ix86_reorg): Honor PAD_RETURNS.
190
191 2006-01-19  Diego Novillo  <dnovillo@redhat.com>
192
193         * tree-pretty-print.c (dump_generic_node): Handle
194         OMP_PARALLEL_FN, OMP_PARALLEL_DATA_ARG and OMP_RETURN_EXPR.
195         * cgraph.c (cgraph_expand_queue): Rename from
196         cgraph_analyze_queue.  Update all users.
197         * cgraphunit.c (cgraph_assemble_pending_functions): Process
198         cgraph_expand_queue.
199         (cgraph_expand_all_functions): Likewise.
200         (cgraph_finalize_pending_functions): Remove.  Update callers.
201
202         * tree.h (OMP_DIRECTIVE_P): Define.
203         (OMP_PARALLEL_FN): Define.
204         (OMP_PARALLEL_DATA_ARG): Define.
205         (OMP_SECTIONS_SECTIONS): Define.
206         * tree-pass.h (pass_expand_omp): Declare.
207         * omp-low.c (struct omp_region): Declare.
208         (struct omp_context): Remove fields 'parallel_type',
209         'parallel_start_ix' and 'parallel_start_additional_args'.
210         Update all users.
211         (struct omp_for_data): Rename from struct expand_omp_for_data.
212         (omp_regions): New static variable.
213         (root_omp_region): New static variable.
214         (find_omp_clause): Make static.
215         (is_in_combined_parallel_ctx): Remove.
216         (is_combined_parallel): New.
217         (extract_omp_for_data): Move earlier in the file.
218         (workshare_safe_to_combine_p): New.
219         (get_ws_args_for): New.
220         (determine_parallel_type): Move earlier in the file.
221         (omp_copy_decl_2): Do not set DECL_CONTEXT of new local to the
222         child function.
223         (omp_copy_decl): Likewise.
224         (create_omp_child_function): Likewise.
225         (lookup_omp_region): New.
226         (dump_omp_region): New.
227         (debug_omp_region): New.
228         (debug_all_omp_regions): New.
229         (new_omp_region): New.
230         (scan_omp_parallel): If parallel_nesting_level > 1, the
231         directive is nested within another parallel directive.
232         Set OMP_PARALLEL_FN.
233         (scan_omp_for): Do not try to handle combined parallel+for
234         cases.
235         Remove FIXME comment.
236         (scan_omp_nested): Remove.
237         (scan_omp_1): Do not call scan_omp_nested when
238         parallel_nesting_level is > 1.
239         Do not change the DECL_CONTEXT of local variables found.
240         (lookup_decl_in_outer_ctx): New.
241         (lower_rec_input_clauses): Rename from expand_rec_input_clauses.
242         (lower_lastprivate_clauses): Rename from expand_lastprivate_clauses.
243         (lower_reduction_clauses): Rename from expand_reduction_clauses.
244         (lower_copyprivate_clauses): Rename from expand_copyprivate_clauses.
245         If CTX is nested, lookup VAR in the outer context when
246         building copy assignment.
247         (lower_send_clauses): Rename from expand_send_clauses.
248         If CTX is nested, lookup VAR in the outer context when
249         building copy assignments.
250         (lower_send_shared_vars): Rename from expand_send_shared_vars.
251         If CTX is nested, lookup VAR in the outer context when
252         building copy assignments.
253         (expand_parallel_call): Rename from build_parallel_call.
254         Handle combined parallel+workshare cases.
255         Re-implement to emit code into the CFG.
256         (list2chain): New.
257         (expand_omp_parallel): Re-implement to emit code into the CFG.
258         Call move_sese_region_to_fn to outline the sub-graph
259         containing the parallel region.
260         (expand_omp_for_1): Remove.
261         (expand_omp_for_generic): Re-implement to emit code into the
262         CFG.
263         (expand_omp_for_static_nochunk): Likewise.
264         (expand_omp_for_static_chunk): Likewise.
265         (expand_omp_for): Likewise.
266         (expand_omp_sections): Likewise.
267         (remove_exit_barriers): New.
268         (expand_omp_synch): New.
269         (expand_omp): New.
270         (build_omp_regions_1): New.
271         (build_omp_regions): New.
272         (execute_expand_omp): New.
273         (gate_expand_omp): New.
274         (pass_expand_omp): Define.
275         (lower_omp_sections): Rename from expand_omp_sections.
276         Set OMP_SECTIONS_SECTIONS.
277         (lower_omp_single_simple): Rename from expand_omp_single_simple.
278         (lower_omp_single_copy): Rename from expand_omp_single_copy.
279         (lower_omp_single): Rename from expand_omp_simple.
280         (lower_omp_master): Rename from expand_omp_master.
281         (lower_omp_ordered): Rename from expand_omp_ordered.
282         (lower_omp_critical): Rename from expand_omp_critical.
283         (lower_omp_for_lastprivate): Rename from expand_omp_for_lastprivate.
284         (lower_omp_for): Re-implement.
285         (lower_omp_parallel): Re-implement.
286         (lower_regimplify): Rename from expand_regimplify.
287         (lower_omp_1): Rename from expand_omp_1.
288         If there are syntax errors in the program, replace every
289         OpenMP directive with NOP.
290         Call lower_omp_* instead of expand_omp_*.
291         (lower_omp): Rename from expand_omp.
292
293         * tree-gimple.c (is_gimple_stmt): Handle OMP_RETURN_EXPR.
294         * tree-gimple.h (enum omp_parallel_type): Remove.
295         (gimple_boolify): Declare extern.
296         (find_omp_clause, determine_parallel_type): Remove.
297
298         * gimple-low.c (lower_omp_directive): New.
299         (lower_stmt): Call it.
300         (record_vars_into): Move from ...
301         (record_vars): ... here.
302         Call record_vars_into with current_function_decl.
303
304         * gimplify.c (struct gimplify_ctx): Remove fields
305         combined_pre_p and combined_ctxp.  Update users.
306         (get_formal_tmp_var): Add documentation.
307         (gimple_boolify): Make extern.
308         (gimplify_expr_in_ctx): Remove.  Update callers.
309         (gimplify_omp_parallel): Do not assume that OMP_PARALLEL_BODY
310         will always be a BIND_EXPR.
311         (gimplify_expr): Handle OMP_RETURN_EXPR.
312         * tree.def (BLOCK): Remove documentation about BLOCK_TYPE_TAGS.
313         (OMP_PARALLEL): Add 3 operands.
314         (OMP_SECTIONS): Add 1 operand.
315         (OMP_RETURN_EXPR): Define.
316
317         * tree-inline.c (estimate_num_insns_1): Handle OpenMP directives.
318         (copy_tree_r): Restore TREE_CHAIN in OMP_CLAUSE_*.
319         * tree-iterator.c (alloc_stmt_list): Assert that we are not
320         creating a circular free list.
321         (free_stmt_list): Assert that we are not freeing stmt_list_cache.
322
323         * tree-flow.h (move_sese_region_to_fn): Declare.
324         (record_vars_into): Declare.
325         * tree-cfg.c (make_omp_sections_edges): New.
326         (make_exit_edges): Handle OMP_PARALLEL, OMP_FOR, OMP_SINGLE,
327         OMP_MASTER, OMP_ORDERED, OMP_CRITICAL, OMP_RETURN_EXPR,
328         OMP_SECTIONS and OMP_SECTION.
329         (is_ctrl_altering_stmt): Return true for OMP_DIRECTIVE_P.
330         (set_bb_for_stmt): Undo change to check currently_expanding_to_rtl.
331         (verify_stmt): Do not handle OMP_DIRECTIVE_P.
332         (gather_blocks_in_sese_region): New.
333         (struct move_stmt_d): Declare.
334         (move_stmt_r): New.
335         (move_block_to_fn): New.
336         (move_sese_region_to_fn): New.
337
338         * passes.c (init_optimization_passes): Schedule
339         pass_expand_omp after pass_init_datastructures.
340
341         * tree-ssa-operands.c (get_expr_operands): Handle
342         OMP_PARALLEL, OMP_SECTIONS, OMP_FOR, OMP_RETURN_EXPR,
343         OMP_SINGLE, OMP_MASTER, OMP_ORDERED, OMP_CRITICAL.
344
345 2006-01-19  Jeff Law  <law@redhat.com>
346
347         * tree-vrp.c (extract_range_from_assert): Refine the result range
348         if the variable referenced by the ASSERT_EXPR has a range and
349         either the tentative result range or the previous range is a 
350         VR_ANTI_RANGE.
351
352 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
353
354         * c-decl.c (add_flexible_array_elts_to_size): Simplify vector accesses.
355
356 2006-01-19  Jan Hubicka  <jh@suse.cz>
357
358         * tree-vect-patterns.c (vect_pattern_recog_1): Prevent parse error.
359
360 2006-01-19  Paolo Bonzini  <bonzini@gnu.org>
361
362         * combine.c (try_combine): Do not worry about MEMs wrapped by USEs.
363         (expand_compound_operation, expand_field_assignment): Fail if the
364         bit lengths of an extract operation are out of range.
365         (make_extraction): Compute wanted_inner_mode based on the position
366         and length of the extraction.  Make it extraction_mode for non-constant
367         positions, and do not modify offset in that case.  When generating a
368         new MEM, use a mode that can hold the extraction while keeping correct
369         alignment.  Remove code that supported MEMs wrapped by USEs.
370         (simplify_shift_const_1, force_to_mode) <case USE>: Remove.
371
372 2006-01-19  Andreas Krebbel  <krebbel1@de.ibm.com>
373
374         * config/s390/s390.md ("Y", "y"): New mode attribute.
375         ("*cmpdi_ccs", "*cmpsi_ccs", "*adddi3_imm_cc", "*adddi3_carry1_cc", 
376         "*adddi3_carry1_cconly", "*adddi3_carry2_cc", "*adddi3_carry2_cconly",
377         "*adddi3_cc", "*adddi3_cconly", "*adddi3_cconly2", "*adddi3_64", 
378         "*addsi3_imm_cc", "*addsi3_carry1_cc", 
379         "*addsi3_carry1_cconly", "*addsi3_carry2_cc", "*addsi3_carr2_cconly",
380         "*addsi3_cc", "*addsi3_cconly", "*addsi3_cconly2",
381         "*subdi3_borrow_cc", "*subdi3_borrow_cconly", "*subdi3_cc", 
382         "*subdi3_cc2", "*subdi3_cconly", "*subdi3_cconly2", "*subdi3_64",
383         "*subsi3_borrow_cc", "*subsi3_borrow_cconly", "*subsi3_cc",
384         "*subsi3_cc2", "*subsi3_cconly", "*subsi3_cconly", "*subsi3_cconly2",
385         "addsi3", "subsi3"): Insn patterns removed.
386         ("*add<mode>3_carry1_cc", "*add<mode>3_carry1_cconly",
387         "*add<mode>3_carry2_cc", "*add<mode>3_carry2_cconly", "*add<mode>3_cc",
388         "*add<mode>3_cconly", "*add<mode>3_cconly2", "*add<mode>3_imm_cc",
389         "*sub<mode>3_borrow_cc", "*sub<mode>3_borrow_cconly",
390         "*sub<mode>3_cc", "*sub<mode>3_cc2", "*sub<mode>3_cconly", 
391         "*sub<mode>3_cconly2"): New insn patterns.
392         ("addsi3", "subsi3"): New expanders.
393
394 2006-01-19  Dorit Nuzman  <dorit@il.ibm.com>
395
396         * Makefile.in (tree-vect-patterns.o): Add rule for new file.
397         * tree-vect-analyze.c (vect_determine_vectorization_factor): Use
398         existing STMT_VINFO_VECTYPE if available.
399         (vect_mark_relevant): Add special handling for stmts that are
400         marked as STMT_VINFO_IN_PATTERN_P.
401         (vect_analyze_loop): Call vect_pattern_recog.
402         * tree-vectorizer.c (new_stmt_vec_info): Initialize new fields.
403         * tree-vectorizer.h (in_pattern_p, related_stmt): New fields in
404         stmt_info.
405         (STMT_VINFO_IN_PATTERN_P, STMT_VINFO_RELATED_STMT): New macros.
406         (vect_recog_func_ptr): New function-pointer type.
407         * tree-vect-patterns.c: New file.
408         (vect_recog_widen_sum_pattern, vect_recog_widen_mult_pattern):
409         (vect_recog_dot_prod_pattern, vect_pattern_recog):
410         (vect_pattern_recog_1): New functions.
411         (vect_pattern_recog_funcs): New array of function pointers.
412
413         * tree-vectorizer.h (ternary_op): New enum value.
414         * tree-vect-transform.c (vect_create_epilog_for_reduction): Added
415         declaration. Revised documentation. Removed redundant dump prints.
416         Removed redundant argument. Added support for reduction patterns.
417         (vectorizable_reduction): Added support for reduction patterns.
418         (vect_transform_stmt): Added support for patterns.
419
420         * expr.c (expand_expr_real_1): Added case for DOT_PROD_EXPR.
421         * genopinit.c (udot_prod_optab, sdot_prod_optab): Initialize.
422         * optabs.c (optab_for_tree_code): Added case for DOT_PROD_EXPR.
423         (expand_widen_pattern_expr): New function.
424         (init_optabs): Initialize new optabs udot_prod_optab,
425         sdot_prod_optab.
426         * optabs.h (OTI_sdot_prod, OTI_udot_prod): New.
427         (sdot_prod_optab, udot_prod_optab): Define new optabs.
428         (expand_widen_pattern_expr): New function declaration.
429         * tree.def (DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR): New
430         tree-codes.
431         * tree-inline.c (estimate_num_insns_1): Added cases for new
432         tree-codes DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
433         * tree-pretty-print.c (dump_generic_node): Likewise.
434         (op_prio): Likewise.
435         (op_symbol): Added cases for WIDEN_SUM_EXPR, WIDEN_MULT_EXPR.
436         * tree-ssa-operands.c (get_expr_operands): Added case for
437         DOT_PROD_EXPR.
438         * tree-vect-patterns.c (widened_name_p): New function.
439         (vect_recog_dot_prod_pattern): Added function implementation.
440         * tree-vect-transform.c (get_initial_def_for_reduction): Added
441         cases for DOT_PROD_EXPR, WIDEN_SUM_EXPR.
442         * config/rs6000/altivec.md (udot_prod<mode>, sdot_prodv8hi): New.
443         * config/i386/sse.md (sdot_prodv8hi, udot_prodv4si): New.
444
445         * expr.c (expand_expr_real_1): Added case for WIDEN_SUM_EXPR.
446         * genopinit.c (widen_ssum_optab, widen_usum_optab): Initialize.
447         * optabs.c (optab_for_tree_code): Added case for WIDEN_SUM_EXPR.
448         (init_optabs): Initialize new optabs widen_ssum_optab,
449         widen_usum_optab.
450         * optabs.h (OTI_widen_ssum, OTI_widen_usum): New.
451         (widen_ssum_optab, widen_usum_optab): Define new optabs.
452         * tree-vect-generic.c: (expand_vector_operations_1): Check type of
453         use instead of type of def.
454         * tree-vect-patterns.c (vect_recog_widen_sum_pattern): Added
455         function implementation.
456         * config/rs6000/altivec.md (widen_usum<mode>, widen_ssumv16qi,
457         widen_ssumv8hi): New.
458
459         * doc/tm.texi (ssum_widen, usum_widen, sdot_prod, udot_prod): New
460         patterns.
461
462 2006-01-19  Richard Sandiford  <richard@codesourcery.com>
463
464         PR c/25805
465         * c-decl.c (add_flexible_array_elts_to_size): New function.
466         (finish_decl): Use it.
467
468 2006-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
469
470         * diagnostic.h: Include options.h.
471         * config/rs6000/x-darwin (host-ppc-darwin.o): Correct the
472         dependancies for diagnostic.h.
473         * Makefile.in (DIAGNOSTIC_H): Add options.h.
474
475 2006-01-16  Daniel Berlin  <dberlin@dberlin.org>
476
477         * tree-ssa-operands.h (ssa_call_clobbered_cache_valid): Remove.
478         (ssa_ro_call_cache_valid): Ditto.
479         * tree-ssa-alias.c (sort_tags_by_id): New function.
480         (init_transitive_clobber_worklist): Ditto.
481         (add_to_worklist): Ditto.
482         (mark_aliases_call_clobbered): Ditto.
483         (compute_tag_properties): Ditto.
484         (set_initial_properties): Ditto.
485         (compute_call_clobbered): Ditto.
486         (compute_may_aliases):  Call compute_call_clobbered and grouping.
487         (compute_flow_sensitive_aliasing): Remove clobbering related code.
488         (compute_flow_insensitive_aliasing): Grouping now happens in our
489         caller.
490         (setup_pointers_and_addressables): Remove clobbering related code.
491         (add_may_alias): Ditto.
492         (replace_may_alias): Ditto.
493         (get_nmt_for): Ditto.
494         (create_global_var): 
495         (is_escape_site): Return an escape_type enumeration.
496         * tree-flow-inline.h (is_call_clobbered):  Global var does not
497         imply call clobbered.
498         (mark_call_clobbered): Take a reason for marking this. Remove
499         marking of globalness, and cache invalidation.
500         (clear_call_clobbered): Remove cache invalidation code.
501         * tree-dfa.c (dump_variable): If details is on, dump the reason
502         for escaping.
503         * tree-outof-ssa.c (create_temp): Copy escape mask from original
504         variable. 
505         * tree-flow.h (struct ptr_info_def): Add escape mask member.
506         (struct var_ann_d): Ditto.
507         (enum escape_type): New.
508         (mark_call_clobbered): Adjust prototype.
509         * tree-ssa-structalias.c (update_alias_info): Unmodifiable vars
510         are never call clobbered. 
511         Record reasons for escaping.
512         * tree-ssa-structalias.h (is_escape_site): Update prototype.
513         * tree-ssa-operands.c (ssa_call_clobbered_cache_valid): Remove.
514         (ssa_ro_call_cache_valid): Ditto.
515         (clobbered_v_may_defs): Ditto.
516         (clobbered_vuses): Ditto.
517         (ro_call_vuses): Ditto.
518         (clobber_stats): New.
519         (init_ssa_operands): Zero out clobber stats.
520         (fini_ssa_operands): Print out clobber stats.
521         (get_call_expr_operands): Pass callee fndecl to
522         add_call_read_ops).
523         (add_call_clobber_ops): Remove use of cache.
524         Add use of PURE_CONST information.
525         (add_call_read_ops): Remove use of cache.
526         Add use of static not_read information.
527         
528 2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
529
530         Introduce TLS descriptors for i386 and x86_64.
531         * config/i386/i386.h (TARGET_GNU2_TLS): New macro.
532         (TARGET_ANY_GNU_TLS): New macro.
533         (enum tls_dialect): Added TLS_DIALECT_GNU2.
534         (struct machine_function): Add tls_descriptor_call_expanded_p.
535         (ix86_tls_descriptor_calls_expande_in_cfun): New macro.
536         (ix86_current_function_calls_tls_descriptor): Likewise.
537         * config/i386/i386.c (ix86_tls_dialect): Fix typo in comment.
538         (override_options): Introduce gnu2 tls dialect.
539         (ix86_frame_pointer_required): Functions containing TLSCALLs are
540         not leaves.
541         (ix86_select_alt_pic_regnum, ix86_compute_frame_layout):
542         Likewise.
543         (legitimize_tls_address): Adjust logic for GNU2 TLS.
544         (ix86_init_machine_status): Initialize new field.
545         (ix86_tls_get_addr): Use TARGET_ANY_GNU_TLS.
546         (ix86_tls_module_base): New.
547         * config/i386/i386-protos.h (ix86_tls_module_base): Declare it.
548         * config/i386/i386.md (UNSPEC_TLSDESC): New constant.
549         (tls_global_dynamic_32, tls_global_dynamic_64): Handle GNU2 TLS.
550         (tls_local_dynamic_base_32, tls_local_dynamic_base_64): Likewise.
551         (tls_dynamic_gnu2_32, *tls_dynamic_lea_32): New patterns.
552         (*tls_dynamic_call_32, *tls_dynamic_gnu2_combine_32): Likewise.
553         (tls_dynamic_gnu2_64, *tls_dynamic_lea_64): Likewise.
554         (*tls_dynamic_call_64, *tls_dynamic_gnu2_combine_64): Likewise.
555         * config/i386/predicates.md (tls_modbase_operand): New.
556         (tp_or_register_operand): New.
557
558 2006-01-18  Daniel Berlin  <dberlin@dberlin.org>
559
560         * ipa-reference.c (check_operand):  Allow FUNCTION_DECL.
561         (look_for_address_of): Ditto.
562         (ipa_init): Walk the function decls.
563         (static_execute): Don't set readonly on FUNCTION_DECL's.
564
565 2006-01-18  Roger Sayle  <roger@eyesopen.com>
566
567         * config/i386/i386.md (shift spliter): Fix a a typo in the splitter
568         for shifts where the source and destination registers are different.
569
570 2006-01-18  Paul Brook  <paul@codesourcery.com>
571
572         Merge from csl-arm-branch.
573         2005-03-14  Julian Brown  <julian@codesourcery.com>
574         * config/arm/lib1funcs.asm (ashldi3): Don't define on SymbianOS.
575         (aeabi_llsl): Likewise.
576         (ashrdi3): Likewise.
577         (aeabi_lasr): Likewise.
578         (lshrdi3): Likewise.
579         (aeabi_llsr): Likewise. 
580         2005-03-10  Julian Brown  <julian@codesourcery.com>
581         * config.gcc: Disable shared libgcc for SymbianOS.
582         * config/arm/t-symbian (LIB2ADDEH): Include config/arm/pr-support.c.
583
584 2006-01-18  DJ Delorie  <dj@redhat.com>
585
586         * c-pragma.c (handle_pragma_diagnostic): New.
587         (init_pragma): Register it.
588         * doc/extend.texi: Document it.
589
590         * diagnostic.def: Add DK_UNSPECIFIED and DK_IGNORED.
591         * diagnostic.h (diagnostic_classify_diagnostic): Declare.
592         (diagnostic_context): Add classify_diagnostic[].
593         * diagnostic.c (diagnostic_count_diagnostic): Don't count warnings
594         as errors if they're overridden to DK_WARNING.
595         (diagnostic_initialize): Initialize classify_diagnostic[].
596         (diagnostic_set_kind_override): New.
597         (diagnostic_report_diagnostic): Check for kind changes.
598         * opts.c (common_handle_option): Take lang_mask.  Update callers.
599         Handle OPT_Werror_.
600         * common.opt (Werror=): New.
601         * doc/invoke.texi: Document -Werror=*
602
603 2006-01-18  Jeff Law  <law@redhat.com>
604
605         * tree-vrp.c (test_for_singularity): Correct test for new
606         min limit.  Use operand_equal_p rather than pointer equality
607         for testing if new min/max values are equal.
608
609         * tree-ssa-propagate.c (substitute_and_fold): Delay simplifications
610         using range information until after propagation and folding.
611
612 2006-01-18  Richard Henderson  <rth@redhat.com>
613             Aldy Hernandez  <aldyh@redhat.com>
614             Jakub Jelinek  <jakub@redhat.com>
615             Diego Novillo  <dnovillo@redhat.com>
616
617         * omp-low.c: New file.
618         * c-omp.c: New file.
619
620 2006-01-18  Richard Henderson  <rth@redhat.com>
621             Jakub Jelinek  <jakub@redhat.com>
622             Diego Novillo  <dnovillo@redhat.com>
623
624         * doc/invoke.texi: Document -fopenmp.
625         * tree-dump.h (debug_function): Declare.
626         * hooks.c (hook_bool_tree_bool_false): New function.
627         (hook_tree_tree_null): Remove.
628         (hook_tree_tree_tree_null): New.
629         * hooks.h: Update to match.
630         * tree-pretty-print.c (debug_tree_chain): New.
631         (print_generic_expr): Handle TDF_CHAIN.
632         (dump_generic_node): Handle BLOCK.
633         Do not abort with incomplete SWITCH_EXPRs.
634         Do not dump body of an OpenMP directive if TDF_SLIM is given.
635         <case OMP_PARALLEL, OMP_FOR, OMP_SECTIONS>: Don't
636         print space after directive name.
637         <OMP_FOR>: Handle printing OMP_FOR_PRE_BODY.
638         Handle OMP_MASTER and OMP_ORDERED.
639         Handle printing of OMP_BODY just in one place, goto
640         dump_omp_body in the rest of OMP_* nodes that have
641         OMP_BODY.
642         Don't handle clause nodes here.  Update omp statements to
643         use dump_omp_clauses.
644         Handle OMP_SINGLE, OMP_SECTIONS, OMP_SECTION,
645         OMP_CLAUSE_ORDERED, OMP_CLAUSE_SCHEDULE, OMP_ATOMIC,
646         OMP_CRITICAL, OMP_CLAUSE_NOWAIT, GOMP_CLAUSE_IF,
647         GOMP_CLAUSE_NUM_THREADS, GOMP_FOR, GOMP_CLAUSE_SHARED,
648         GOMP_CLAUSE_FIRSTPRIVATE, GOMP_CLAUSE_LASTPRIVATE,
649         GOMP_CLAUSE_COPYIN and GOMP_CLAUSE_COPYPRIVATE.
650         Adjust output for GOMP_PARALLEL.
651         (dump_omp_clauses): New.
652         (print_declaration): Dump DECL_VALUE_EXPR.
653         (op_symbol_1): Split out of op_symbol.
654         (dumping_stmts): Remove.  Update all users.
655         * cgraph.c (cgraph_analyze_queue): New.
656         (cgraph_add_new_function): New.
657         * cgraph.h (cgraph_analyze_queue): Declare.
658         (cgraph_add_new_function): Declare.
659         (cgraph_lower_function): Remove.
660         * tree.c (walk_tree): Walk OMP_CLAUSE_CHAIN of OMP_CLAUSE_*
661         nodes.  Use switch for all nodes, handle most of IS_EXPR_CODE_CLASS
662         and TYPE_P nodes in its default clause.
663         (empty_body_p): New.
664         (tree_range_check_failed): New.
665         (build5_stat): New.
666         * tree.h (OMP_CLAUSE_REDUCTION_INIT,
667         OMP_CLAUSE_REDUCTION_MERGE,
668         OMP_CLAUSE_REDUCTION_PLACEHOLDER,
669         OMP_CLAUSE_PRIVATE_DEBUG,
670         OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE, OMP_FOR_PRE_BODY,
671         OMP_MASTER_BODY, OMP_ORDERED_BODY OMP_BODY,
672         OMP_CLAUSES, OMP_CLAUSE_DECL, OMP_CLAUSE_DEFAULT_KIND,
673         OMP_CLAUSE_CHAIN, OMP_CLAUSE_OUTER_DECL,
674         OMP_CLAUSE_INNER_DECL, OMP_CLAUSE_NUM_THREADS_EXPR,
675         OMP_CLAUSE_IF_EXPR, OMP_CLAUSE_SCHEDULE_CHUNK_EXPR,
676         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE. OMP_PARALLEL_VAR_INIT,
677         OMP_PARALLEL_VAR_REDUC, OMP_FOR_VAR_INIT,
678         OMP_FOR_VAR_LAST, OMP_FOR_VAR_REDUC,
679         OMP_SECTIONS_VAR_INIT, OMP_SECTIONS_VAR_LAST,
680         OMP_SECTIONS_VAR_REDUC, OMP_CLAUSE_REDUCTION_CODE
681         OMP_SINGLE_CLAUSES, OMP_SINGLE_BODY,
682         OMP_CLAUSE_SCHEDULE_CHUNK_SIZE, OMP_SECTION_BODY,
683         OMP_CRITICAL_NAME, OMP_CRITICAL_BODY): New.
684         (TREE_RANGE_CHECK): New.
685         (empty_body_p): Declare.
686         (enum omp_clause_default_kind): New.
687         (build_string_literal): Declare.
688         (enum omp_clause_schedule_kind, OMP_CLAUSE_SCHEDULE_KIND): New.
689         (build5_stat, build5): Declare.
690         * tree-pass.h (TDF_CHAIN): Define.
691         * tree-pass.h (PROP_gimple_lomp): Define.
692         (pass_lower_omp): Declare.
693         * diagnostic.h (debug_tree_chain): Declare.
694         * builtins.c (get_builtin_sync_mode): Use 0 as last argument to
695         mode_for_size.
696         (expand_builtin): Handle sync BUILT_IN_*_16 builtins.
697         * builtins.c (build_string_literal): Make extern.
698         * gcc.c (include_spec_function): New.
699         (static_spec_functions): Add it.
700         (main): Move load of libgomp.spec ...
701         (LINK_COMMAND_SPEC): ... here.
702         (link_gomp_spec): New.
703         (static_specs): Include it.
704         (LINK_COMMAND_SPEC): Add link_gomp.
705         (GOMP_SELF_SPECS): New.
706         (driver_self_specs): Include it.
707         (switch_matches): Don't mark inline.
708         (main): Load libgomp.spec.
709         * tree-gimple.c (is_gimple_stmt): True for OMP_MASTER,
710         OMP_ORDERED, OMP_CRITICAL, OMP_SECTIONS, OMP_SECTION,
711         and OMP_SINGLE, OMP_FOR and OMP_PARALLEL.
712         * tree-gimple.h (enum omp_parallel): Declare.
713         (determine_parallel_type): Declare.
714         (omp_firstprivatize_variable): Declare.
715         (omp_reduction_init): Declare.
716         (diagnose_omp_structured_block_errors): Declare.
717         (struct walk_stmt_info): Add want_return_expr.
718         (struct walk_stmt_info): Add want_bind_expr, want_locations.
719         (find_omp_clause): Declare.
720         (insert_field_into_struct): Declare.
721         (struct walk_stmt_info): Move from tree-nested.c
722         (walk_stmts): Declare.
723         * c-cppbuiltin.c (c_cpp_builtins): If -fopenmp, #define _OPENMP
724         to 200505.
725         * cgraphunit.c (cgraph_lower_function): Make static.
726         (cgraph_finalize_pending_functions): New.
727         (cgraph_finalize_function): Call it.
728         (cgraph_finalize_compilation_unit): Likewise.
729         * builtin-types.def (BT_I16, BT_FN_I16_VPTR_I16,
730         BT_FN_BOOL_VPTR_I16_I16, BT_FN_I16_VPTR_I16_I16): Add.
731         (BT_FN_UINT_UINT): New.
732         (DEF_FUNCTION_TYPE_6, DEF_FUNCTION_TYPE_7,
733         DEF_FUNCTION_TYPE_VAR_4): Document.
734         (BT_PTR_LONG, BT_PTR_PTR, BT_FN_BOOL, BT_FN_INT,
735         BT_FN_VOID_PTRPTR, BT_PTR_FN_VOID_PTR,
736         BT_FN_BOOL_LONGPTR_LONGPTR, BT_FN_VOID_OMPFN_PTR_UINT,
737         BT_FN_VOID_OMPFN_PTR_UINT_UINT,
738         BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
739         BT_FN_BOOL_LONG_LONG_LONG_LONG_LONGPTR_LONGPTR,
740         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG,
741         BT_FN_VOID_OMPFN_PTR_UINT_LONG_LONG_LONG_LONG): New.
742         * builtins.def: Update DEF_BUILTIN comment to include COND argument.
743         Move all DEF_SYNC_BUILTIN () and DEF_GOMP_BUILTIN () builtins
744         into separate files.
745         (DEF_GOMP_BUILTIN): New.
746         (BUILT_IN_OMP_GET_THREAD_NUM, BUILT_IN_GOMP_BARRIER,
747         BUILT_IN_GOMP_CRITICAL_START, BUILT_IN_GOMP_CRITICAL_END,
748         BUILT_IN_GOMP_CRITICAL_NAME_START, BUILT_IN_GOMP_CRITICAL_NAME_END,
749         BUILT_IN_GOMP_LOOP_STATIC_START, BUILT_IN_GOMP_LOOP_DYNAMIC_START,
750         BUILT_IN_GOMP_LOOP_GUIDED_START, BUILT_IN_GOMP_LOOP_RUNTIME_START,
751         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_START,
752         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_START,
753         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_START,
754         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_START,
755         BUILT_IN_GOMP_LOOP_STATIC_NEXT, BUILT_IN_GOMP_LOOP_DYNAMIC_NEXT,
756         BUILT_IN_GOMP_LOOP_GUIDED_NEXT, BUILT_IN_GOMP_LOOP_RUNTIME_NEXT,
757         BUILT_IN_GOMP_LOOP_ORDERED_STATIC_NEXT,
758         BUILT_IN_GOMP_LOOP_ORDERED_DYNAMIC_NEXT,
759         BUILT_IN_GOMP_LOOP_ORDERED_GUIDED_NEXT,
760         BUILT_IN_GOMP_LOOP_ORDERED_RUNTIME_NEXT,
761         BUILT_IN_GOMP_PARALLEL_LOOP_STATIC_START,
762         BUILT_IN_GOMP_PARALLEL_LOOP_DYNAMIC_START,
763         BUILT_IN_GOMP_PARALLEL_LOOP_GUIDED_START,
764         BUILT_IN_GOMP_PARALLEL_LOOP_RUNTIME_START,
765         BUILT_IN_GOMP_LOOP_END, BUILT_IN_GOMP_LOOP_END_NOWAIT,
766         BUILT_IN_GOMP_ORDERED_START, BUILT_IN_GOMP_ORDERED_END,
767         BUILT_IN_GOMP_PARALLEL_START, BUILT_IN_GOMP_PARALLEL_END,
768         BUILT_IN_GOMP_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_NEXT,
769         BUILT_IN_GOMP_PARALLEL_SECTIONS_START, BUILT_IN_GOMP_SECTIONS_END,
770         BUILT_IN_GOMP_SECTIONS_END_NOWAIT, BUILT_IN_GOMP_SINGLE_START,
771         BUILT_IN_GOMP_SINGLE_COPY_START, BUILT_IN_GOMP_SINGLE_COPY_END): New.
772         * sync-builtins.def: New file, moved from builtins.def.
773         * omp-builtins.def: New file, moved from builtins.def.
774         * c-objc-common.h (LANG_HOOKS_OMP_PREDETERMINED_SHARING): Redefine.
775         * gimple-low.c (lower_function_body): Clear data.
776         (lower_stmt): Do not handle COMPOUND_EXPR.
777         Remove call to print_node_brief.
778         * c-tree.h (c_finish_omp_clauses): New prototype.
779         (C_DECL_THREADPRIVATE_P): Define.
780         (lookup_name_no_remap, c_omp_remap_private): Remove
781         (c_begin_omp_parallel, c_finish_omp_parallel): Update.
782         (check_for_loop_decls): Update decl.
783         (lookup_name_no_remap, c_omp_remap_private): Declare.
784         (build_indirect_ref, build_modify_expr, pushdecl,
785         pushdecl_top_level): Move to c-common.h.
786         * dwarf2out.c (loc_descriptor_from_tree_1): Don't set unsignedp
787         before the switch, but just in the 2 places that need it.
788         * c-decl.c (diagnose_mismatched_decls): Do not check for
789         mismatched thread-local attributes when OLDDECL is marked
790         threadprivate and NEWDECL has no thread-local attributes.
791         (merge_decls): Merge C_DECL_THREADPRIVATE_P.
792         (c_gimple_diagnostics_recursively): Rename from
793         c_warn_unused_result_recursively.  Invoke
794         diagnose_omp_structured_block_errors.
795         (check_for_loop_decls): Return a singular decl found.
796         * langhooks.c (lhd_omp_predetermined_sharing): Return
797         OMP_CLAUSE_DEFAULT_SHARED for DECL_ARTIFICIAL decls.
798         (lhd_omp_firstprivatize_type_sizes): New.
799         (lhd_omp_assignment): New.
800         (lhd_omp_predetermined_sharing): New.
801         * langhooks.h (struct gimplify_omp_ctx): Forward declare.
802         (struct lang_hooks_for_types): Add
803         omp_firstprivatize_type_sizes, omp_privatize_by_reference,
804         omp_predetermined_sharing, omp_disregard_value_expr,
805         omp_private_debug_clause, omp_clause_default_ctor,
806         omp_clause_copy_ctor, omp_clause_assign_op, omp_clause_dtor.
807         (c_finish_omp_clauses): New.
808         (c_finish_bc_stmt): Diagnose break within omp for.
809         (c_begin_omp_parallel, c_finish_omp_parallel): New.
810         (build_unary_op): Return error_mark after reporting
811         a readonly_error.
812         (build_modify_expr): Likewise.
813         * gimplify.c: Include optabs.h and pointer-set.h.
814         (enum gimplify_omp_var_data): Declare.
815         (struct gimplify_omp_ctx): Declare.
816         (struct gimplify_ctx): Add fields prev_context, combined_pre_p
817         and combined_ctxp.
818         (gimplify_ctxp, gimplify_omp_ctxp): New local variables.
819         (push_gimplify_context, pop_gimplify_context): Allow nesting.
820         (splay_tree_compare_decl_uid): New.
821         (new_omp_context): New.
822         (delete_omp_context): New.
823         (gimple_add_tmp_var): Call omp_add_variable.
824         (gimplify_bind_expr): Likewise.
825         (gimplify_var_or_parm_decl): If omp_notice_variable returned
826         true, disregard DECL_VALUE_EXPR on the decl if any.
827         (gimplify_expr_in_ctx): New.
828         (omp_firstprivatize_variable, omp_firstprivatize_type_sizes
829         omp_add_variable, omp_notice_variable, omp_is_private
830         gimplify_scan_omp_clauses, gimplify_adjust_omp_clauses_1
831         gimplify_adjust_omp_clauses, gimplify_omp_parallel
832         gimplify_omp_for, gimplify_omp_workshare, goa_lhs_expr_p
833         gimplify_omp_atomic_fetch_op, goa_stabilize_expr
834         gimplify_omp_atomic_pipeline, gimplify_omp_atomic_mutex
835         gimplify_omp_atomic): New.
836         (gimplify_expr): Handle OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
837         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
838         OMP_CRITICAL and OMP_ATOMIC.
839         (gimplify_body): Verify gimplify_ctxp is empty after gimplification.
840         * c-pragma.h (enum pragma_kind): Add
841         PRAGMA_OMP_ATOMIC, PRAGMA_OMP_BARRIER,
842         PRAGMA_OMP_CRITICAL, PRAGMA_OMP_FLUSH, PRAGMA_OMP_FOR,
843         PRAGMA_OMP_MASTER, PRAGMA_OMP_ORDERED,
844         PRAGMA_OMP_PARALLEL, PRAGMA_OMP_PARALLEL_FOR,
845         PRAGMA_OMP_PARALLEL_SECTIONS, PRAGMA_OMP_SECTION,
846         PRAGMA_OMP_SECTIONS, PRAGMA_OMP_SINGLE,
847         PRAGMA_OMP_THREADPRIVATE.
848         * tree.def (OMP_PARALLEL, OMP_FOR, OMP_SECTIONS,
849         OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
850         OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE_PRIVATE,
851         OMP_CLAUSE_SHARED, OMP_CLAUSE_FIRSTPRIVATE,
852         OMP_CLAUSE_LASTPRIVATE, OMP_CLAUSE_REDUCTION,
853         OMP_CLAUSE_COPYIN, OMP_CLAUSE_COPYPRIVATE,
854         OMP_CLAUSE_IF, OMP_CLAUSE_NUM_THREADS,
855         OMP_CLAUSE_SCHEDULE, OMP_CLAUSE_NOWAIT,
856         OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Define.
857         * print-tree.c (print_node): Dump DECL_VALUE_EXPR.
858         * tree-ssa-dce.c (find_control_dependence): Do not assume that
859         ENTRY_BLOCK_PTR->next_bb == single_succ (ENTRY_BLOCK_PTR).
860         * tree-nested.c (convert_call_expr): Call walk_body on OMP_BODY for
861         OpenMP directives.
862         (struct nesting_info): Add field_map,
863         suppress_expansion, debug_var_chain.
864         (create_nesting_tree): Initialize them.
865         (lookup_field_for_decl): Use field_map.
866         (get_nonlocal_debug_decl, get_local_debug_decl): New.
867         (convert_local_omp_clauses): New.
868         (finalize_nesting_tree_1): Add debug_var_chain to toplevel block.
869         (walk_body): Split out of walk_function.
870         (convert_nonlocal_omp_clauses, convert_local_omp_clauses): New.
871         (convert_nonlocal_reference): Handle omp statements.
872         (convert_local_reference): Likewise.
873         (unnest_nesting_tree_1): Split out of finalize_nesting_tree_1.
874         (unnest_nesting_tree): New.
875         (lower_nested_functions): Call it.
876         (insert_field_into_struct): Make extern.
877         (struct walk_stmt_info): Move to tree-gimple.h.
878         (walk_stmts): Make extern.
879         * omp-builtins.def: New file.
880         * tree-iterator.c (expr_only): Clarify comment.
881         * c-common.h (pushdecl_top_level, pushdecl,
882         build_modify_expr, build_indirect_ref,
883         c_finish_omp_master, c_finish_omp_critical,
884         c_finish_omp_ordered, c_finish_omp_barrier,
885         c_finish_omp_atomic, c_finish_omp_flush,
886         c_finish_omp_for, c_split_parallel_clauses,
887         omp_clause_default_kind, c_omp_sharing_predetermined,
888         c_omp_remap_decl): Declare.
889         * Makefile.in (BUILTINS_DEF): Add omp-builtins.def.
890         (OBJS-common): Add omp-low.o.
891         (c-omp.o, omp-low.o): Add.
892         (gimplify.o): Add dependency on $(OPTABS_H).
893         (GTFILES): Add omp-low.c.
894         (gt-stringpool.h): Add.
895         * tree-cfg.c (set_bb_for_stmt): Do not update the
896         block-to-labels map if we are currently expanding to RTL.
897         (tree_node_can_be_shared): Remove unnecessary CONSTANT_CLASS_P
898         checks.
899         Handle IDENTIFIER_NODE.
900         (tree_verify_flow_info): Do not ICE when emitting error
901         messages about invalid labels.
902         (dump_function_to_file): Reset CFUN before emitting the body
903         of the function.
904         (debug_function): New.
905         * passes.c (init_optimization_passes): Schedule
906         pass_lower_omp.
907         * langhooks-def.h (lhd_omp_predetermined_sharing,
908         lhd_omp_assignment, lhd_omp_firstprivatize_type_sizes):
909         Declare.
910         (LANG_HOOKS_OMP_FIRSTPRIVATIZE_TYPE_SIZES): Define.
911         (LANG_HOOKS_FOR_TYPES_INITIALIZER): Use it.
912         (LANG_HOOKS_OMP_PRIVATIZE_BY_REFERENCE,
913         LANG_HOOKS_OMP_PREDETERMINED_SHARING,
914         LANG_HOOKS_OMP_DISREGARD_VALUE_EXPR,
915         LANG_HOOKS_OMP_PRIVATE_DEBUG_CLAUSE,
916         LANG_HOOKS_OMP_CLAUSE_DEFAULT_CTOR,
917         LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
918         LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP,
919         LANG_HOOKS_OMP_CLAUSE_DTOR): Define.
920         (LANG_HOOK_DECLS): Use them.
921
922 2006-01-18  Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
923             Richard Henderson  <rth@redhat.com>
924             Jakub Jelinek  <jakub@redhat.com>
925             Diego Novillo  <dnovillo@redhat.com>
926
927         * c-parser.c (pragma_omp_clause): Define.
928         (c_parser_declaration_or_fndef): Document OpenMP syntax.
929         (c_parser_compound_statement): Likewise.
930         (c_parser_statement): Likewise.
931         (c_parser_pragma): Handle omp pragmas.
932         (OMP_FOR_CLAUSE_MASK, OMP_SECTIONS_CLAUSE_MASK,
933         OMP_PARALLEL_CLAUSE_MASK, OMP_SINGLE_CLAUSE_MASK): Define.
934         (c_parser_omp_clause_name, check_no_duplicate_clause,
935         c_parser_omp_variable_list,
936         c_parser_omp_var_list_parens, c_parser_omp_clause_copyin,
937         c_parser_omp_clause_copyprivate,
938         c_parser_omp_clause_default,
939         c_parser_omp_clause_firstprivate, c_parser_omp_clause_if,
940         c_parser_omp_clause_lastprivate,
941         c_parser_omp_clause_nowait,
942         c_parser_omp_clause_num_threads,
943         c_parser_omp_clause_ordered, c_parser_omp_clause_private,
944         c_parser_omp_clause_reduction,
945         c_parser_omp_clause_schedule, c_parser_omp_clause_shared,
946         c_parser_omp_all_clauses, c_parser_omp_structured_block,
947         c_parser_omp_atomic, c_parser_omp_barrier,
948         c_parser_omp_critical, c_parser_omp_flush,
949         c_parser_omp_for_loop, c_parser_omp_for,
950         c_parser_omp_master, c_parser_omp_ordered,
951         c_parser_omp_sections_scope, c_parser_omp_sections,
952         c_parser_omp_parallel, c_parser_omp_single,
953         c_parser_omp_construct, c_parser_omp_threadprivate): New.
954         * c-pragma.c (init_pragma): Do omp pragma registration here.
955         * c.opt (fopenmp): New flag.
956
957 2006-01-18  Eric Christopher  <echristo@apple.com>
958
959         * gcc.c (GOMP_SELF_SPECS): Bracket in #ifndef/#endif.
960         * config/darwin.h (GOMP_SELF_SPECS): Define.
961
962 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
963
964         * rtl.h: Remove the prototype for reg_alloc.
965
966 2006-01-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
967
968         PR target/25731
969         * config.gcc (hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*,
970         hppa[12]*-*-hpux11*): Override default shared libgcc version for both
971         sjlj and dwarf2 exception handling.
972         * pa/t-hpux-shlib (SHLIB_SOVERSION): New make variable.
973         Rework to allow overriding SHLIB_EXT and SHLIB_SOVERSION.
974         * pa/pa.c (function_value): Treat complex and vector types as
975         aggregates.
976         (function_arg): Likewise.  Only pass scalar floats in the floating
977         point argument registers.
978         * pa/t-slibgcc-dwarf-ver: New file.
979         * pa/t-slibgcc-sjlj-ver: New file.
980         * pa/t-slibgcc-elf-ver: Delete file.
981
982 2006-01-19  Alan Modra  <amodra@bigpond.net.au>
983
984         * config/rs6000/rs6000.c (rs6000_assemble_integer): Correct
985         unlikely_test_section_p test.
986
987 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
988
989         * mode-switching.c (optimize_mode_switching): Make it static.
990         * basic-block.h: Remove the prototype for
991         optimize_mode_switching.
992
993         * modulo-sched.c (sms_schedule): Make it static.
994         * rtl.h: Remove the prototype for sms_schedule.
995
996         * postreload-gcse.c (gcse_after_reload_main): Make it static.
997         * rtl.h: Remove the prototype for gcse_after_reload_main.
998
999         * reg-stack.c (reg_to_stack): Make it static.
1000         * rtl.h: Remove the prototype for reg_to_stack.
1001
1002         * regrename.c (regrename_optimize, copyprop_hardreg_forward):
1003         Make them static.
1004         * rtl.h: Remove the prototypes for regrename_optimize and
1005         copyprop_hardreg_forward.
1006
1007 2006-01-18  Eric Botcazou  <ebotcazou@adacore.com>
1008
1009         * config/alpha/alpha.c (alpha_split_tfmode_pair): Rename into
1010         alpha_split_tmode_pair.  Add 'mode' and 'fixup_overlap' arguments.
1011         Test against the appropriate null constant for the mode.
1012         If 'fixup_overlap' is true, swap the operands if they overlap.
1013         (alpha_split_tfmode_frobsign): Adjust call to alpha_split_tfmode_pair.
1014         * config/alpha/alpha-protos.h (alpha_split_tfmode_pair): Rename into
1015         alpha_split_tmode_pair and adjust for above change.
1016         * config/alpha/alpha.md (movtf_internal): Adjust call to
1017         alpha_split_tfmode_pair and rely on it to swap the operands.
1018         (movti_internal): New insn and post-reload splitter.
1019         (movti): New expander.
1020
1021 2006-01-18  Philippe De Muyter  <phdm@macqel.be>
1022
1023         * config/m68k/m68k.md (*addsi3_5200): Allow addq/subq to memory
1024         operands.
1025
1026 2006-01-18  Kazu Hirata  <kazu@codesourcery.com>
1027
1028         * rtlanal.c (global_reg_mentioned_p_1,
1029         global_reg_mentioned_p): Remove.
1030         * rtl.h: Remove the prototype for global_reg_mentioned_p.
1031
1032         * flow.c (initialize_uninitialized_subregs): Make it static.
1033         * rtl.h: Remove the prototype for
1034         initialize_uninitialized_subregs.
1035
1036         * function.c (instantiate_virtual_regs): Make it static.
1037         * function.h: Remove the prototype for
1038         instantiate_virtual_regs.
1039
1040         * regmove.c (regmove_optimize, combine_stack_adjustments):
1041         Make them static.
1042         * rtl.h: Remove the prototypes for regmove_optimize and
1043         combine_stack_adjustments.
1044
1045 2006-01-17  Roger Sayle  <roger@eyesopen.com>
1046
1047         * config/i386/i386.c (COSTS_N_BYTES): New macro.
1048         (size_cost): Encode costs in bytes so that a reg-reg addition is
1049         equivalent to COSTS_N_INSNS(1).
1050         (override_options): Use the size_cost.branch_cost as the default
1051         ix86_branch_cost when optimizing for size.
1052
1053 2006-01-18  Ben Elliston  <bje@au.ibm.com>      
1054
1055         * Makefile.in (D32PBIT_FUNCS): New.
1056         (D64PBIT_FUNCS, D128PBIT_FUNCS): Likewise.
1057         (libgcc.mk): Set D32PBIT, D64PBIT, D128PBIT, D32PBIT_FUNCS,
1058         D64PBIT_FUNCS and D128PBIT_FUNCS.
1059         (LIBGCC_DEPS): Include $(D32PBIT), $(D64PBIT), $(D128PBIT).
1060         * mklibgcc.in Bring in the DFP support code if D32PBIT, D64PBIT or
1061         D128PBIT are set.
1062         (decnumber_dep): Define.
1063         * doc/libgcc.texi (Decimal float library routines): New node.
1064         * config/dfp-bit.h, config/dfp-bit.c: New files.
1065
1066 2006-01-18  Ben Elliston  <bje@au.ibm.com>      
1067
1068         * expr.c (emit_move_change_mode): Always adjust addresses, not
1069         just during reload.  Copy replacements only during reload.
1070         (emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
1071         emit_move_via_integer.
1072
1073 2006-01-17  Shantonu Sen  <ssen@opendarwin.org>
1074
1075         * Makefile.in (check-%, check-consistency): Use $${srcdir}
1076         instead of $(srcdir) and ${srcdir}.
1077
1078 2006-01-17  Richard Earnshaw  <rearnsha@arm.com>
1079
1080         PR target/592
1081         PR middle-end/11135
1082         * arm.h (struct machine_function): Add pic_reg.
1083         * arm.c (arm_pic_register): Make unsigned.
1084         (arm_override_options): Only set arm_pic_register if
1085         TARGET_SINGLE_PIC_BASE.
1086         (use_return_insn): Only test for a pic register if it is fixed.
1087         (arm_compute_save_reg0_reg12_mask): Likewise.
1088         (thumb_compute_save_reg_mask): Likewise.
1089         (legitimate_pic_operand): Factor out some known invariants.
1090         (legitimize_pic_address): If we don't have a fixed pic register,
1091         then set up a pseudo in the function entry sequence.  Handle the
1092         pic base being in a pseudo.
1093         (arm_load_pic_register): Handle the pic register being in a pseudo.
1094         (arm_expand_prologue): Only set up the pic register if it is fixed.
1095         (thumb_expand_prologue): Likewise.
1096         * arm.md (pic_load_addr_based): Handle the pic base being a pseudo.
1097         (pic_load_addr_based_insn): Likewise.
1098         (builtin_setjmp_receiver): Don't restore the pic base if it isn't
1099         fixed.
1100
1101 2006-01-18  Ben Elliston  <bje@au.ibm.com>
1102
1103         * config/rs6000/rs6000.c (rs6000_hard_regno_mode_ok): Reject
1104         decimal float modes for all floating point registers.
1105
1106         * config/rs6000/predicates.md (reg_or_mem_operand): Pair up
1107         match_code "mem" with match_test "macho_lo_sum_memory_operand".
1108
1109 2006-01-17  Jakub Jelinek  <jakub@redhat.com>
1110
1111         PR c/25682
1112         * c-typeck.c (build_unary_op): Fold offsetof-like expressions
1113         even when the pointer is not NULL.
1114
1115 2006-01-16  Ian Lance Taylor  <ian@airs.com>
1116
1117         * common.opt (ftoplevel-reorder): New option.
1118         * cgraph.c (cgraph_asm_nodes): New global variable.
1119         (cgraph_asm_last_node): New static variable.
1120         (cgraph_order): New global variable.
1121         (cgraph_create_node): Set new order field.
1122         (cgraph_varpool_node): Likewise.
1123         (decide_is_variable_needed): Return true if not
1124         flag_toplevel_reorder.
1125         (cgraph_add_asm_node): New function.
1126         * cgraph.h (struct cgraph_node): Add order field.
1127         (struct cgraph_varpool_node): Add order field.
1128         (struct cgraph_asm_node): Define.
1129         (cgraph_asm_nodes, cgraph_order): Declare.
1130         (cgraph_add_asm_node): Declare.
1131         * cgraphunit.c (cgraph_varpool_assemble_decl): New static
1132         function.
1133         (cgraph_varpool_assemble_pending_decls): Call it.
1134         (cgraph_output_pending_asms): New static function.
1135         (cgraph_finalize_compilation_unit): Call it.
1136         (struct cgraph_order_sort): Define.
1137         (cgraph_output_in_order): New static function.
1138         (cgraph_optimize): Call cgraph_output_pending_asms.  Add code for
1139         !flag_toplevel_reorder case.
1140         * c-parser.c: Include "cgraph.h".
1141         (c_parser_asm_definition): Call cgraph_add_asm_node rather than
1142         assemble_asm.
1143         * Makefile.in (CRTSTUFF_CFLAGS): Use -fno-toplevel-reorder rather
1144         than -fno-unit-at-a-time.
1145         * doc/invoke.texi (Option Summary): Mention
1146         -fno-toplevel-reorder.
1147         (Optimize Options): Document -fno-toplevel-reorder.  Mention it in
1148         -funit-at-a-time documentation.
1149
1150 2006-01-17  Hans-Peter Nilsson  <hp@axis.com>
1151             Kazu Hirata  <kazu@codesourcery.com>
1152
1153         * Makefile.in (FUNCTION_H, LAMBDA_H): Use $(TREE_H), not tree.h.
1154
1155 2006-01-17  Kazu Hirata  <kazu@codesourcery.com>
1156
1157         * Makefile.in (FUNCTION_H): New.  Use it instead of
1158         function.h throughout the file.
1159         * function.h: Include tree.h.
1160
1161 2006-01-17  Ben Elliston  <bje@au.ibm.com>
1162
1163         * recog.c: Separate some functions with whitespace.
1164
1165 2006-01-16  Richard Henderson  <rth@redhat.com>
1166
1167         Merge from gomp branch:
1168         * Makefile.in (TREE_INLINE_H): New.  Use it as needed.
1169         * tree-inline.h (struct copy_body_data): Move from tree-inline.c
1170         and rename from struct inline_data.  Rename callee* to dst*; 
1171         caller* to src*; add copy_decl hook, transform_call_graph_edges,
1172         transform_new_cfg, transform_return_to_modify, and
1173         transform_lang_insert_block flags; remove cloning_p, versioning_p,
1174         update_clones_p.
1175         (copy_body_r, insert_decl_map, remap_decl, remap_type): Declare.
1176         (copy_decl_for_dup): Remove.
1177         * tree-inline.c (struct inline_data): Move to header.
1178         (insert_decl_map): Export.
1179         (remap_decl): Update for member name changes.  Use copy_decl hook.
1180         Allow for replacement to be a non-decl.  Remove dead code.
1181         (remap_type_1): Check for existing mapping.
1182         (remap_type): Export.
1183         (remap_decls): Update for member name changes.
1184         (remap_block, copy_bb, copy_cfg_body, copy_generic_body): Likewise.
1185         (copy_body, setup_one_parameter, declare_return_variable): Likewise.
1186         (expand_call_inline, optimize_inline_calls, clone_body): Likewise.
1187         (copy_tree_r, mark_local_for_remap_r, unsave_expr_now): Likewise.
1188         (tree_function_versioning, build_duplicate_type): Likewise.
1189         (copy_body_r): Likewise.  Export.
1190         (copy_decl_for_dup): Split into ...
1191         (copy_decl_for_dup_finish, copy_decl_to_var,
1192         copy_decl_no_change, copy_decl_maybe_to_var): ... these.
1193         (replace_ref_tree, inlining_p): Remove.
1194
1195 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
1196
1197         * ifcvt.c (if_convert): Make it static.
1198         * rtl.h: Remove the prototype for if_convert.
1199
1200         * local-alloc.c (local_alloc): Make it static.
1201         * rtl.h: Remove the prototype for local_alloc.
1202
1203         * loop.c (loop_optimize): Make it static.
1204         * cfgloop.h: Remove the prototype for loop_optimize.
1205         * rtl.h: Likewise.
1206
1207 2006-01-16  DJ Delorie  <dj@redhat.com>
1208
1209         * reload.c (reg_overlap_mentioned_for_reload_p): Handle subregs of
1210         mems.
1211
1212 2006-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1213
1214         * pa.md: Disparage copies between general and floating-point registers
1215         in 32-bit move patterns.
1216
1217 2006-01-16  H.J. Lu  <hongjiu.lu@intel.com>
1218
1219         PR testsuite/25741
1220         * Makefile.in (check-%): Depend on site.exp instead of
1221         $(TESTSUITEDIR)/site.exp. Run "runtest" in separate language
1222         directories.
1223
1224 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
1225
1226         * global.c (global_alloc): Make it static.
1227         * rtl.h: Remove the prototype for global_alloc.
1228
1229 2006-01-16  Richard Guenther  <rguenther@suse.de>
1230
1231         * tree-ssa-alias.c (struct used_part): Add write_only field.
1232         (get_or_create_used_part_for): Initialize it to true.
1233         (create_overlap_variables_for): Don't create structure variables
1234         for structures that only are written to.
1235         (find_used_portions): Handle MODIFY_EXPR to track whether a
1236         structure is only written to.
1237
1238 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
1239
1240         * bb-reorder.c (partition_hot_cold_basic_blocks): Make it
1241         static.
1242         * basic-block.h: Remove the prototype for
1243         partition_hot_cold_basic_blocks.
1244
1245 2006-01-16  Rafael \81\81Ã\81vila de Esp\81\81Ã\81\81­ndola <rafael.espindola@gmail.com>
1246
1247         * cppspec.c (lang_specific_spec_functions): remove
1248         * gcc.c (lookup_spec_function): use static_spec_functions directelly
1249         * gcc.h (lang_specific_spec_functions): remove
1250         * gccspec.c (lang_specific_spec_functions): remove
1251
1252 2005-01-16  Paolo Bonzini  <bonzini@gnu.org>
1253
1254         * combine.c (record_value_for_reg): Invalidate registers
1255         if INSN is null.
1256         (record_dead_and_set_regs_1): Likewise, by passing them to
1257         record_value_for_reg.
1258         (record_dead_and_set_regs): Invalidate stores made by a
1259         call.  We do not combine across a call, but we still
1260         relied on equivalences.
1261
1262 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
1263
1264         * tree-vrp.c (extract_range_from_binary_expr): Cope with
1265         vrp_int_const_binop returning non-constant nodes.
1266
1267 2006-01-16  Paul Brook  <paul@codesourcery.com>
1268
1269         * config/m68k/m68k.c (output_move_const_into_data_reg):
1270         Output correct mnemonic for mvz and mvs.
1271
1272 2006-01-16  Gabor Loki  <loki@gcc.gnu.org>
1273
1274         * rtl-factoring.c: Add sequence abstraction algorithm.
1275         * cfgcleanup.c (outgoing_edges_match): Extra checks.
1276         (try_crossjump_to_edge): Avoid deleting preserve label when redirecting
1277         ABNORMAL edges.
1278         (block_has_preserve_label): New function.
1279         * common.opt: Register new pass.
1280         * Makefile.in: Ditto.
1281         * passes.c: Ditto.
1282         * timevar.def: Ditto.
1283         * tree-pass.h: Ditto.
1284         * emit-rtl.c (make_jump_insn_raw): Remove forward decl.
1285         * rtl.h (make_jump_insn_raw): Add forward decl.
1286         * doc/invoke.texi: Add documentation for -frtl-abstract-sequences.
1287
1288 2006-01-16  Eric Botcazou  <ebotcazou@adacore.com>
1289             Roger Sayle  <roger@eyesopen.com> 
1290
1291         * fold-const.c (fold_minmax): New static function.
1292         (fold_binary) <MIN_EXPR>: Call it.
1293         <MAX_EXPR>: Likewise.
1294         * stor-layout.c (place_field): Use DECL_SIZE consistently
1295         in the computation of the new record size.
1296
1297 2006-01-16  Kazu Hirata  <kazu@codesourcery.com>
1298
1299         * cse.c (cse_condition_code_reg): Make it static.
1300         * rtl.h: Remove the prototype for cse_condition_code_reg.
1301
1302         * combine.c (combine_instructions): Make it static.
1303         * rtl.h: Remove the prototype for combine_instructions.
1304
1305 2006-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1306
1307         PR target/25168
1308         * tree.c (get_file_function_name_long): Concatenate the first global
1309         object name with a string derived from the input filename of the object
1310         for type "F".
1311
1312 2006-01-16  Ben Elliston  <bje@au.ibm.com>
1313
1314         * config/i386/winnt-stubs.c: Update FSF address.
1315         * config/xtensa/ieee754-df.S: Ditto.
1316         * config/xtensa/ieee754-sf.S: Ditto.
1317
1318 2006-01-14  Ian Lance Taylor  <ian@airs.com>
1319
1320         * ifcvt.c (noce_init_if_info): New static function, broken out of
1321         noce_process_if_block.
1322         (noce_process_if_block): Call noce_init_if_info.
1323         (check_cond_move_block): New static function.
1324         (cond_move_process_if_block): New static function.
1325         (process_if_block): Call cond_move_process_if_block.
1326
1327 2006-01-15  Kazu Hirata  <kazu@codesourcery.com>
1328
1329         * cselib.c (hash_table): Rename to cselib_hash_table.
1330         (cselib_clear_table, discard_useless_values,
1331         remove_useless_values, cselib_lookup_mem, cselib_lookup,
1332         cselib_init, cselib_finish): Adjust uses of hash_table.
1333
1334 2006-01-14  Kazu Hirata  <kazu@codesourcery.com>
1335
1336         PR tree-optimization/25485
1337         * tree-vrp.c (extract_range_from_binary_expr): Handle cases
1338         where one of the operands of TRUTH_AND_EXPR and TRUTH_OR_EXPR
1339         is known to be false and true, respectively.
1340
1341 2006-01-14  Richard Guenther  <rguenther@suse.de>
1342
1343         PR tree-optimization/22548
1344         PR tree-optimization/22555
1345         PR tree-optimization/22501
1346         * Makefile.in (tree-ssa-structalias.o): Depend on $(PARAMS_H).
1347         * params.def (salias-max-array-elements): New parameter.
1348         * params.h (SALIAS_MAX_ARRAY_ELEMENTS): Define.
1349         * doc/invoke.texi (salias-max-array-elements): Document.
1350         * tree-flow-inline.h (var_can_have_subvars): We also handle
1351         arrays now.
1352         * tree-ssa-alias.c (find_used_portions): Handle ARRAY_REF like
1353         COMPONENT_REF.
1354         * tree-ssa-structalias.c (params.h): Include.
1355         (push_fields_onto_fieldstack): Handle ARRAY_TYPE.
1356         (find_func_aliases): Handle multiple constraints from ARRAY_REF.
1357         (get_constraint_for): For ADDR_EXPR operating on something
1358         containing an ARRAY_REF, add all subvars to the solution.
1359         (handle_ptr_arith): Handle ARRAY_TYPE like RECORD_TYPE types.
1360         * tree-ssa-operands.c (parse_ssa_operands): Handle ARRAY_REF
1361         for creating MUST_DEFs.
1362         (get_expr_operands): Treat ARRAY_REF like COMPONENT_REF wrt subvars.
1363
1364 2006-01-14  Zdenek Dvorak <dvorakz@suse.cz>
1365
1366         * tree-ssa-loop-niter.c (number_of_iterations_cond): Split into several
1367         functions.
1368         (number_of_iterations_ne, number_of_iterations_lt_to_ne,
1369         assert_no_overflow_lt, assert_loop_rolls_lt, number_of_iterations_lt,
1370         number_of_iterations_le): New functions.
1371         (number_of_iterations_special): Removed.
1372         (number_of_iterations_exit): Do not use number_of_iterations_special.
1373         * tree.c (unsigned_type_for): Always return integer type.
1374
1375 2006-01-14  Steven Bosscher  <stevenb.gcc@gmail.com>
1376         Richard Guenther  <rguenther@suse.de>
1377
1378         PR rtl-optimization/24257
1379         * gcse.c (find_moveable_store): Only consider a store movable
1380         when the SET_SRC of the insn can be assigned to a register.
1381
1382 2006-01-14  Ian Lance Taylor  <ian@airs.com>
1383
1384         * tree.c (tree_not_class_check_failed): New function.
1385         * tree.h (NON_TYPE_CHECK): Call tree_not_class_check_failed.
1386         (tree_not_class_check_failed): Declare.
1387
1388 2006-01-13  Ian Lance Taylor  <ian@airs.com>
1389
1390         * reload1.c (do_output_reload): Add assertion rejecting a
1391         CALL_INSN.
1392
1393 2006-01-13  Adam Nemet  <anemet@caviumnetworks.com>
1394
1395         * combine.c (struct reg_stat): Add new fields truncation_label and
1396         truncated_to_mode.
1397         (record_value_for_reg): Reset truncated_to_mode.
1398         (record_truncated_value): New function.
1399         (check_promoted_subreg): Call it.  Rename to check_conversions.
1400         (combine_instructions): Rename check_promoted_subreg to
1401         check_conversions.
1402         (reg_truncated_to_mode): New function.
1403         (make_extraction): Use it.  Check TRULY_NOOP_TRUNCATION.
1404         (gen_lowpart_or_truncate): New function.
1405         (force_to_mode): Use it instead of gen_lowpart.
1406
1407 2006-01-13  Diego Novillo  <dnovillo@redhat.com>
1408
1409         * tree-ssa-alias.c (add_type_alias): Fix typo.  Test whether
1410         VAR is a tag, not its type tag.
1411
1412 2006-01-13  Alexandre Oliva  <aoliva@redhat.com>
1413
1414         * config/i386/sse.md (*vec_extractv2di_1_sse2): Reorder
1415         alternatives to match style of other entries.
1416         (*vec_extractv2di_1_sse): Likewise.  Fix mode attr.
1417
1418 2006-01-13  Daniel Berlin  <dberlin@dberlin.org>
1419
1420         PR tree-optimization/25771
1421         * tree-ssa-pre.c (insert_extra_phis): Don't insert merges of abnormal
1422         SSA_NAMES.
1423
1424 2006-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
1425
1426         PR tree-opt/24365
1427         * tree-inline.c (declare_return_variable): If the return variable
1428         was marked as a non gimple complex, set the return slot variable
1429         to be a non gimple comple variable.
1430
1431 2006-01-13  Richard Guenther  <rguenther@suse.de>
1432
1433         * builtins.c (expand_builtin_sincos): New function.
1434         (expand_builtin_mathfn_3): Remove dead code, sin and cos
1435         do not set errno.
1436         (expand_builtin): Expand sincos using expand_builtin_sincos.
1437
1438 2006-01-12  DJ Delorie  <dj@redhat.com>
1439
1440         * config/m32c/shift.md: Rewrite: Allow arbitrary operands for
1441         shift counts, separate SI shifts for m32c vs m16c, pass shift type
1442         so that constant shifts can be split.
1443         * config/m32c/m32c.c (m32c_const_ok_for_constraint_p): Add In6.
1444         (m32c_valid_pointer_mode): Make static.
1445         (shift_gen_func_for): New.
1446         (m32c_prepare_shift): Use it.  Split large const shifts into
1447         multiple shifts.
1448         * config/m32c/predicates.md (shiftcount_operand): Allow more
1449         general operands.
1450         (longshiftcount_operand): New.
1451         * doc/md.texi (Machine Constraints): Document In6.
1452
1453 2006-01-13  Ben Elliston  <bje@au.ibm.com>
1454
1455         * doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
1456         REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL128
1457         documentation.
1458
1459 2006-01-12  Daniel Berlin  <dberlin@dberlin.org>
1460
1461         * tree-ssa-operands.c (add_call_clobber_ops): Use SFT_PARENT_VAR
1462         to try to avoid clobbering pieces of structures when we know
1463         something about the whole structure.
1464         * tree-ssa-alias.c (create_sft): Set SFT_PARENT_VAR
1465
1466 2006-01-13  Ben Elliston  <bje@au.ibm.com>
1467
1468         * doc/rtl.texi (Insns): Remove statement that libcalls cannot
1469         return in memory, as this is no limitation is no longer present.
1470
1471 2006-01-12  DJ Delorie  <dj@redhat.com>
1472
1473         * config/m32c/addsub.md (addhi3): Add two more alternatives, for
1474         mova with fb, and for fb+0 -> An.
1475
1476         * config/m32c/mov.md (peephole2): Fix enabling logic.
1477
1478         * config/m32c/m32c.h (CTOR_LIST_BEGIN, CTOR_LIST_END,
1479         DTOR_LIST_BEGIN, DTOR_LIST_END, CTORS_SECTION_ASM_OP,
1480         DTORS_SECTION_ASM_OP, INIT_ARRAY_SECTION_ASM_OP,
1481         FINI_ARRAY_SECTION_ASM_OP): Define.
1482
1483         * config/m32c/m32c.c (m32c_legitimize_address): Remove temporary
1484         variable.
1485         (m32c_legitimize_reload_address): New logic to reload FB to An.
1486         (m32c_output_reg_push): Add newline.
1487         (m32c_output_reg_pop): Likewise.
1488
1489 2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
1490
1491         * struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
1492
1493 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
1494
1495         * config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.
1496
1497 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
1498
1499         * config/sh/predicates.md (sh_rep_vec): Add parallel to
1500         match_code.
1501
1502 2006-01-11  Ben Elliston  <bje@au.ibm.com>
1503
1504         * rtlanal.c (find_reg_note): Assert insn is not null.
1505
1506 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
1507
1508         * df-scan.c (df_hard_reg_init): Move declaration of i outside
1509         ifdef.
1510
1511 2006-01-11  Jeff Law  <law@redhat.com>
1512
1513         * tree-ssa-threadupdate.c (threaded_edges): New VEC to
1514         hold edge pairs.
1515         (mark_threaded_blocks, register_jump_thread): New functions.
1516         (thread_through_all_blocks): Remove unwanted argument.  No
1517         longer rely on e->aux to communicate thread target info.
1518         Call mark_threaded_blocks.  Release the threaded_blocks
1519         bitmap and threaded_edges vector when complete.
1520         * tree-ssa-dom.c (struct edge_info): Remove redirection_target field.
1521         (threaded_blocks): Remove.
1522         (tree_ssa_dominator_optimize): Remove initialization and
1523         finalization of threaded_blocks.  Simplify call to
1524         thread_through_all_blocks.
1525         (thread_across_edge): Call register_jump_thread rather than
1526         storing thread information into e->aux.
1527         (free_all_edge_infos): Simplify now that e->aux is no longer
1528         used to communicate with thread_through_all_blocks.
1529         * tree-flow.h (thread_through_all_blocks): Update prototype.
1530         (register_jump_thread): Prototype.
1531         
1532 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
1533
1534         * df-core.c (df_compact_blocks, df_bb_replace): Use
1535         SET_BASIC_BLOCK instead of BASIC_BLOCK.
1536
1537 2006-01-11  Richard Guenther  <rguenther@suse.de>
1538
1539         PR tree-optimization/25734
1540         * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
1541         stop propagation after successful propagation to the LHS.
1542
1543 2006-01-11  Kazu Hirata  <kazu@codesourcery.com>
1544
1545         * basic-block.h (control_flow_graph): Change the type of
1546         x_basic_block_info to VEC(basic_block,gc) *.
1547         (BASIC_BLOCK_FOR_FUNCTION, BASIC_BLOCK): Adjust the uses of
1548         basic_block_info.
1549         (SET_BASIC_BLOCK): New.
1550         * cfg.c (compact_blocks, expunge_block): Use SET_BASIC_BLOCK
1551         instead of BASIC_BLOCK when assigning to BASIC_BLOCK.
1552         * cfgbuild.c (find_basic_blocks): Likewise.
1553         * cfglayout.c (fixup_reorder_chain): Likewise.
1554         * cfgrtl.c (create_basic_block_structure,
1555         rtl_create_basic_block): Likewise.
1556         * ifcvt.c (find_if_case_1): Likewise.
1557         * tree-cfg.c (init_empty_tree_cfg, build_tree_cfg, create_bb):
1558         Likewise.
1559
1560 2005-01-11  Kenneth Zadeck <zadeck@naturalbridge.com>
1561
1562         * Makefile.in: Removed rotted odf.c entry.
1563         
1564 2006-01-11  Hans-Peter Nilsson  <hp@axis.com>
1565
1566         PR target/25706
1567         * config/cris/cris.md ("*extopqihi_side", "*extop<mode>si_side")
1568         ("*extop<mode>si_swap_side_biap", "*extop<mode>si_swap_side",
1569         ("*extopqihi", "*extop<mode>si", "*extop<mode>si_swap"): Use %E
1570         output pattern modifier, not %e.
1571         * config/cris/cris.c (cris_op_str): Update comment about pattern
1572         modifier.
1573         (cris_print_operand) <case 'e'>: Clear cris_output_insn_is_bound
1574         before falling through into...
1575         <case 'E'>: Redefined from old 'e' case.
1576
1577 2006-01-11  Jan Hubicka  <jh@suse.cz>
1578
1579         PR target/25042
1580         * i386.c (ix86_init_mmx_sse_builtins): Do not delcare float128
1581
1582 2006-01-11  Jan Hubicka  <jh@suse.cz>
1583
1584         * i386.h (TARGET_DECOMPOSE_LEA): Kill.
1585         * i386.c (x86_decompose_lea): Kill.
1586         (ix86_rtx_costs): Kill.
1587
1588 2006-01-11  Jan Hubicka  <jh@suse.cz>
1589
1590         * cgraph.c (cgraph_insert_node_to_hashtable): New function.
1591         * cgraph.h (cgraph_node): Add inline_decl.
1592         (cgraph_insert_node_to_hashtable): Declare.
1593         (save_inline_function_body): Declare.
1594         * cgraphunit.c (verify_cgraph_node): Inline edges might point to inline
1595         clones.
1596         (cgraph_preserve_function_body_p): Do not presrve when dump is enabled.
1597         (cgraph_function_versioning): Update call of tree_function_versioning.
1598         (save_inline_function_body): New function.
1599         * function.h (struct function): Kill saved_eh, saved_cfg, saved_args,
1600         saved_static_chain_decl, saved_blocks and saved-unexpanded_var_list.
1601         * ipa-inline.c (cgraph_mark_inline_edge): Look for inline clones.
1602         (cgraph_default_inline_p): Likewise.
1603         (cgraph_decide_inlining_incrementally): Likewise.
1604         * tree-inline.c (inline_data): Kill saving_p add update_clones_p.
1605         (copy_bb): Kill saving; do updating of clones.
1606         (copy_cfg_body): Kill saving.
1607         (initialize_inlined-parameters): Likewise.
1608         (expand_call_inline): Likewise.
1609         (save_body): Kill.
1610         (tree_function_versioning): New parameter "update_clones".
1611         (inlining_p): Kill saving.
1612         * tree-inline.h (tree_function_versioning): Update prototype.
1613         * tree-optimize.c (tree_rest_of_compilation): Use clonning instead of
1614         saving.
1615
1616 2006-01-11  Ian Lance Taylor <ian@airs.com>
1617
1618         * combine.c (struct undo): Remove is_int.  Enumify types of undos.
1619         Allow undoing set of machine mode.
1620         (do_SUBST): Use enums instead of is_int.
1621         (do_SUBST_MODE): New function.
1622         (SUBST_MODE): New macro.
1623         (try_combine): Use SUBST_MODE/PUT_MODE instead of generating a new
1624         reg and trying to replace reg_regno_rtx with a new register.
1625         (undo_all): Use new enums, handle undoing a PUT_MODE change.
1626         (simplify_set): Use SUBST_MODE.
1627         (distribute_notes): Remove code that tried to update reg notes
1628         for regno_reg_rtx changes.
1629
1630 2006-01-11  Paolo Bonzini  <bonzini@gnu.org>
1631
1632         PR tree-optimization/23109
1633         PR tree-optimization/23948
1634         PR tree-optimization/24123
1635
1636         * Makefile.in (tree-ssa-math-opts.o): Adjust dependencies.
1637         * tree-cfg.c (single_noncomplex_succ): New.
1638         * tree-flow.h (single_noncomplex_succ): Declare it.
1639         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
1640         * tree-ssa-math-opts.c (enum place_reciprocal): Remove.
1641         (struct occurrence, occ_head, occ_pool, is_divide_by, compute_merit,
1642         insert_bb, register_division_in, insert_reciprocals,
1643         replace_reciprocal, free_bb): New.
1644         (execute_cse_reciprocals_1): Rewritten.
1645         (execute_cse_reciprocals): Adjust calls to execute_cse_reciprocals_1.
1646         Do not commit any edge insertion.  Always compute dominators and
1647         create the allocation pool.
1648         * target-def.h (TARGET_MIN_DIVISIONS_FOR_RECIP_MUL): New.
1649         * target.h (struct gcc_target): Add min_divistions_for_recip_mul.
1650         * targhooks.c (default_min_divistions_for_recip_mul): New.
1651         * targhooks.h (default_min_divistions_for_recip_mul): New prototype.
1652         * passes.c (init_optimization_passes): Run recip after tree loop
1653         optimizations.
1654         * doc/tm.texi (Misc): Document TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.
1655
1656 2005-01-11  Danny Berlin <dberlin@dberlin.org>
1657             Kenneth Zadeck <zadeck@naturalbridge.com>
1658
1659         * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN,
1660         DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN,
1661         DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS,
1662         DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO,
1663         DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT,
1664         DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN,
1665         DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO,
1666         DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO,
1667         DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN,
1668         DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG,
1669         DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P,
1670         DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P,
1671         DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET,
1672         DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET,
1673         DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF,
1674         DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET,
1675         DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES,
1676         DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS,
1677         DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL,
1678         DF_SCAN_POST_ALLOC): New macros.
1679         (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function,
1680         df_free_bb_function, df_local_compute_function, df_init_function,
1681         df_dataflow_function, df_confluence_function_0,
1682         df_confluence_function_n, df_transfer_function,
1683         df_finalizer_function, df_free_function, df_dump_problem_function,
1684         df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link,
1685         df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info,
1686         df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info,
1687         df_urec_bb_info, ) New types.
1688         (df_invalidated_by_call, df_all_hard_regs, df_state) New public
1689         variables.
1690         (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze,
1691         df_analyze_simple_change_some_blocks,
1692         df_analyze_simple_change_one_block, df_compact_blocks,
1693         df_bb_replace, df_bb_regno_last_use_find,
1694         df_bb_regno_first_def_find, df_bb_regno_last_def_find,
1695         df_insn_regno_def_p, df_find_def, df_find_use,
1696         df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump,
1697         df_regs_chain_dump, df_insn_debug, df_insn_debug_regno,
1698         df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno,
1699         debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref,
1700         debug_df_chain, df_get_dependent_problem, df_chain_create,
1701         df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out,
1702         df_grow_bb_info, df_chain_dump, df_print_bb_index,
1703         df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem,
1704         df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info,
1705         df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem,
1706         df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem,
1707         df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem,
1708         df_rescan_blocks, df_ref_create, df_get_artificial_defs,
1709         df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink,
1710         df_ref_remove, df_insn_refs_delete, df_refs_delete,
1711         df_reorganize_refs, df_set_state, df_hard_reg_init,
1712         df_read_modify_subreg_p) New public functions.
1713         * df-core.c: The core dataflow solver and glue routines for rtl
1714         dataflow.
1715         (df_init, df_add_problem, df_set_blocks, df_finish,
1716         df_hybrid_search_forward, df_hybrid_search_backward,
1717         df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem,
1718         df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace,
1719         df_bb_regno_last_use_find, df_bb_regno_first_def_find,
1720         df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def,
1721         df_reg_defined, df_find_use, df_reg_used, df_dump,
1722         df_refs_chain_dump, df_regs_chain_dump, df_insn_debug,
1723         df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn,
1724         debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno,
1725         debug_df_useno, reset_df_after_reload): New functions.
1726         * df-scan.c: The scanning fuctions, once in df.c, completely
1727         rewritten so that they now fully model the functionality of
1728         register usage at the backend.
1729         (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info,
1730         df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump,
1731         df_scan_add_problem, df_grow_reg_info, df_grow_ref_info,
1732         df_grow_insn_info, df_rescan_blocks, df_ref_create,
1733         df_get_artificial_defs, df_get_artificial_uses,
1734         df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink,
1735         df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete,
1736         df_refs_delete, df_reorganize_refs, df_set_state,
1737         df_ref_create_structure, df_ref_record, df_read_modify_subreg_p,
1738         df_def_record_1, df_defs_record, df_uses_record,
1739         df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record,
1740         df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg,
1741         df_record_exit_block_uses, df_hard_reg_init): New functions.
1742
1743         * df-problems.c: Seven concrete dataflow problems that use the
1744         scanning in df-scan.c and are solved by the engine in df-core.c.
1745         (df_get_dependent_problem, df_chain_create, df_chain_unlink,
1746         df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info,
1747         df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen,
1748         df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info,
1749         df_ru_free_bb_info, df_ru_alloc,
1750         df_ru_bb_local_compute_process_def,
1751         df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
1752         df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
1753         df_ru_transfer_function, df_ru_free, df_ru_dump,
1754         df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info,
1755         df_rd_free_bb_info, df_rd_alloc,
1756         df_rd_bb_local_compute_process_def, df_rd_bb_local_compute,
1757         df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n,
1758         df_rd_transfer_function, df_rd_free, df_rd_dump,
1759         df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info,
1760         df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute,
1761         df_lr_local_compute, df_lr_init, df_lr_confluence_0,
1762         df_lr_confluence_n, df_lr_transfer_function, df_lr_free,
1763         df_lr_dump, df_lr_add_problem, df_ur_get_bb_info,
1764         df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc,
1765         df_ur_bb_local_compute, df_ur_local_compute, df_ur_init,
1766         df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function,
1767         df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info,
1768         df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc,
1769         df_urec_mark_reg_change, df_urec_check_earlyclobber,
1770         df_urec_mark_reg_use_for_earlyclobber,
1771         df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute,
1772         df_urec_local_compute, df_urec_init, df_urec_local_finalize,
1773         df_urec_confluence_n, df_urec_transfer_function, df_urec_free,
1774         df_urec_dump, df_urec_add_problem, df_chain_alloc,
1775         df_chain_create_bb_process_use, df_chain_create_bb,
1776         df_chain_finalize, df_chain_free, df_chains_dump,
1777         df_chain_add_problem, df_ri_alloc, df_ri_bb_compute,
1778         df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem,
1779         df_reg_lifetime): New functions.
1780         * df.c: Deleted file.
1781         * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code
1782         consistent with new df api.
1783         * modulo-sched.c (sms_schedule, rest_of_handle_sms,
1784         rest_of_handle_sms): Ditto.
1785         * web.c (unionfind_union, union_defs, entry_register, web_main):
1786         Ditto.
1787         * loop_invariant.c (invariant_for_use, hash_invariant_expr_1,
1788         invariant_expr_equal_p, find_defs, check_dependencies,
1789         find_invariant_insn, find_invariants_to_move, move_invariant_reg,
1790         free_inv_motion_data, move_loop_invariants): Ditto.
1791         * Makefile.in (df.c, df-scan.c df-problems.c df-core.c): 
1792         Update dependencies.
1793         (odf.c): Added defective entry that was deleted later in day.
1794         * sched-deps.c (sched_analyze_1): Ditto.
1795
1796 2006-01-11  Zdenek Dvorak <dvorakz@suse.cz>
1797
1798         * tree-ssa-operands.c (get_expr_operands): Record addressable
1799         variables directly.  Do not call add_stmt_operands for CONST_DECLs
1800         and ARRAY_DECLs.
1801         (get_indirect_ref_operands): Remove handling of *(&a + offset) case.
1802         (add_stmt_operands): Handle only objects satisfying SSA_VAR_P.
1803
1804 2006-01-11  Ben Elliston  <bje@au.ibm.com>
1805
1806         * config/i386/i386.c (ix86_return_in_memory): Fix comment: this
1807         function returns true in the positive case.
1808
1809 2006-01-10  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1810
1811         PR target/20754
1812         * config/pa/pa.md: Create separate 32 and 64-bit move patterns
1813         for SI, DI, SF and DF modes.  Add alternatives to copy between
1814         general and floating point registers to the 32-bit patterns.
1815         * config/pa/pa-64.h (SECONDARY_MEMORY_NEEDED_RTX): Delete undefine.
1816         * config/pa/pa.h (SECONDARY_MEMORY_NEEDED_RTX): Delete define.
1817         (SECONDARY_MEMORY_NEEDED): Secondary memory is only needed when
1818         generating 64-bit code.
1819         * config/pa/pa.c (output_move_double): Handle copies between general
1820         and floating registers.
1821
1822 2006-01-10  Stuart Hastings  <stuart@apple.com>
1823
1824         * config/i386/i386.md (set_got): Update.
1825         (set_got_labelled): New.  (UNSPEC_LD_MPIC): New.
1826         (builtin_setjmp_receiver): Mach-O support.
1827         * config/i386/darwin.h (TARGET_ASM_FILE_END) Define.
1828         (GOT_SYMBOL_NAME): Define.
1829         (FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN): New.
1830         (TARGET_DEEP_BRANCH_PREDICTION): Remove.
1831         * config/i386/i386.c (override_options): Revise for Darwin.
1832         (USE_HIDDEN_LINKONCE): Enable for Mach-O.  (ix86_file_end): Mach-O
1833         support.  (darwin_x86_file_end): New.  (output_set_got): Add label
1834         parameter, revise for Mach-O.  (x86_output_mi_thunk): Likewise.
1835         * config/i386/i386-protos.h (output_set_got): Likewise.
1836         * config/darwin.c (machopic_legitimize_pic_address): Update
1837         regs_ever_live[].
1838
1839 2006-01-10  Kaz Kojima  <kkojima@gcc.gnu.org>
1840
1841         * config/sh/sh.h (SH5_WOULD_BE_PARTIAL_NREGS): Use GET_MODE_SIZE
1842         when MODE isn't BLKmode.
1843
1844 2006-01-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
1845
1846         PR rtl-optimization/25367
1847         * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro.
1848
1849 2006-01-10  Hans-Peter Nilsson  <hp@axis.com>
1850
1851         PR target/25718
1852         * config/cris/cris.md ("uminsi3"): Don't use 8- or 16-bit sizes
1853         for a negative bound.
1854
1855 2006-01-10  Richard Guenther  <rguenther@suse.de>
1856
1857         * tree-ssa-structalias.c (get_constraint_for_component_ref):
1858         Never override with anything constraint.
1859
1860 2006-01-10  Jan Beulich  <jbeulich@novell.com>
1861
1862         * config/i386/i386.c (ix86_data_alignment): Don't force alignment to
1863         256 bits when optimize_size.
1864
1865 2006-01-10  Jan Beulich  <jbeulich@novell.com>
1866
1867         * config/i386/netware.h (TARGET_SUBTARGET_DEFAULT): Include
1868         MASK_ALIGN_DOUBLE.
1869         * config/i386/nwld.h (LINK_SPEC): Add --extensions:GNU option.
1870         * config/i386/t-nwld (SHLIB_LINK): Insert spaces between expr
1871         arguments.
1872
1873 2006-01-10  Ben Elliston  <bje@au.ibm.com>
1874
1875         * config/rs6000/predicates.md (easy_fp_constant): Discount decimal
1876         float modes.
1877         * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
1878         (TARGET_SCALAR_MODE_SUPPORTED_P): Define.
1879         (USE_FP_FOR_ARG): Reject decimal float modes.
1880         (function_arg_advance): Likewise.
1881         (output_toc): Handle emitting TDmode, DDmode and SDmode constants.
1882         (rs6000_handle_altivec_attribute): Do not permit decimal floating
1883         point types in AltiVec vectors.
1884         (rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
1885         (rs6000_libcall_value): Likewise.
1886
1887 2006-01-09  Bob Wilson  <bob.wilson@acm.org>
1888
1889         * config/xtensa/ieee754-df.S: New file.
1890         * config/xtensa/ieee754-sf.S: New file.
1891         * config/xtensa/t-xtensa (LIB2FUNCS_EXTRA): Remove fp-bit.c & dp-bit.c.
1892         (LIB1ASMFUNCS): Add SFmode and DFmode floating-point functions.
1893         * config/xtensa/lib1funcs.asm: Include ieee754-df.S and ieee754-sf.S.
1894
1895 2006-01-09  Kazu Hirata  <kazu@codesourcery.com>
1896
1897         * config/sh/predicates.md (binary_float_operator,
1898         binary_logical_operator, commutative_float_operator,
1899         equality_comparison_operator, greater_comparison_operator,
1900         less_comparison_operator, logical_operator,
1901         noncommutative_float_operator, shift_operator,
1902         symbol_ref_operand, unary_float_operator): Remove redundant
1903         conditionals.
1904
1905 2006-01-09  Jeff Law  <law@redhat.com>
1906
1907         * tree-ssa-dom.c (simplify_cond_and_lookup_avail_expr): Remove
1908         code to propagate the RHS of a cast into COND_EXPR_COND.  Remove
1909         now unused arguments.  Callers updated.
1910         (eliminate_redundant_computations): Remove now unused arguments,
1911         callers updated.
1912         (local_fold): Remove, no longer used.
1913         (find_equivalent_equality_comparison): Removed from tree-ssa-dom.c
1914         and moved to...
1915         * tree-ssa-forwprop.c (find_equivalent_equality_comparison): Here.
1916         (simplify_cond): New function.
1917         (forward_propagate_into_cond): Call simplify_cond.
1918
1919 2006-01-09  Alexandre Oliva  <aoliva@redhat.com>
1920
1921         * config/i386/sse.md (*vec_extractv2di_1_sse2): New.
1922         (*vec_extractv2di_1_sse): New.
1923
1924 2006-01-09  Ben Elliston  <bje@au.ibm.com>
1925
1926         * config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.
1927
1928 2006-01-08  Richard Guenther  <rguenther@suse.de>
1929
1930         * tree-ssa-structalias.c (get_constraint_for): Remove
1931         anyoffset argument.
1932         (get_constraint_for_component_ref): Likewise.
1933         (do_deref): Likewise.
1934         (get_constraint_for): Likewise.
1935         (do_structure_copy): Likewise.
1936         (handle_ptr_arith): Likewise.
1937         (find_func_aliases): Likewise.  Remove unused need_anyoffset
1938         variable.
1939
1940 2006-01-08  J"orn Rennecke  <joern.rennecke@st.com>
1941             Kaz Kojima  <kkojima@gcc.gnu.org>
1942
1943         * config/sh/sh.h (CONST_OK_FOR_K16): Define.
1944         (CONST_OK_FOR_K): Add CONST_OK_FOR_K16 case.
1945         (EXTRA_CONSTRAINT_C16): Remove.
1946         (EXTRA_CONSTRAINT_Css, EXTRA_CONSTRAINT_Csu): Define.
1947         (EXTRA_CONSTRAINT_C): Remove EXTRA_CONSTRAINT_C16 case and add
1948         EXTRA_CONSTRAINT_Css and EXTRA_CONSTRAINT_Csu cases.
1949         * config/sh/sh.c (print_operand): Handle unsigned 16-bit symbolic
1950         constants of SHmedia.  Handle nested constant expressions of
1951         SHmedia correctly.
1952         (andcosts): Fix the costs for SHmedia constants.
1953         (sh_rtx_costs): Take account of outer_code for SHmedia constants.
1954         * config/sh/sh.md (*movsi_media): Use Css constraint instead of C16.
1955         (*movsi_media_nofpu, *movqi_media, *movhi_media): Likewise.
1956         (*movdi_media, *movdi_media_nofpu, movv8qi_i, movv2hi_i): Likewise.
1957         (movv4hi_i, movv2si_i): Likewise.
1958         (movsi_const): Adjust the second operand of ior so to match with
1959         the Csu constraint.
1960         (movdi_const, movdi_const_32bit): Likewise.
1961         (movdi_const_16bit+1): Don't sign-extend LOW.
1962         (movdi_const_16bit+2): Likewise.  Remove the zero_extend and truncate
1963         step.
1964         (*double_shori): Fix the split condition.  Use GEN_INT instead
1965         of get_int_mode calls.  Mask lower 16-bit of the argument of
1966         the last GEN_INT.
1967         (sym2GOTPLT): Remove.
1968         (symGOTPLT2reg): Replace gen_sym2GOTPLT with gen_rtx_CONST and
1969         gen_rtx_UNSPEC.
1970         * config/sh/predicates.md (arith_operand): Use EXTRA_CONSTRAINT_Css
1971         instead of EXTRA_CONSTRAINT_C16.
1972
1973 2006-01-07  Ian Lance Taylor  <ian@airs.com>
1974             David Edelsohn  <edelsohn@gnu.org>
1975
1976         PR rtl-optimization/25662
1977         * optabs.c (simplify_expand_binop): Use simplify_binary_operation
1978         for constant operands instead of simplify_gen_binary.
1979         * simplify-rtx.c (simplify_gen_binary): Swap commutative operands
1980         after trying simplify_binary_operation
1981
1982 2006-01-06  Daniel Berlin  <dberlin@dberlin.org>
1983
1984         * tree.c (iterative_hash_expr): Hash decls based on UID.
1985
1986 2006-01-06  Eric Christopher  <echristo@apple.com>
1987
1988         * doc/tm.texi (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): Document.
1989         (TARGET_UNWIND_EMIT): Fix spelling.
1990         * target.h (gcc_target): Add except_table_label.
1991         * except.c (output_function_exception_table): Use.
1992         * varasm.c (default_emit_except_table_label): New.
1993         * target-def.h (TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL): New default
1994         define.
1995         (asm_out): Add here.
1996         * output.h (default_emit_except_table_label): Prototype.
1997         * config/darwin-protos.h (darwin_emit_except_table_label): Ditto.
1998         * config/darwin.c (darwin_emit_except_table_label): Define.
1999         * config/darwin.h (TARGET_ASM_EMIT_EXCEPT_TABLE): Ditto.
2000
2001 2006-01-06  Zdenek Dvorak <dvorakz@suse.cz>
2002
2003         PR tree-optimization/18527
2004         * tree-ssa-loop-niter.c (number_of_iterations_cond,
2005         number_of_iterations_special, number_of_iterations_exit):
2006         Move base and step of an iv to a single structure.  Add
2007         no_overflow flag, and use it in # of iterations analysis.
2008         * tree-scalar-evolution.c (analyze_scalar_evolution_in_loop): Add
2009         folded_casts argument.
2010         (simple_iv): Pass base and step in a structure.  Set no_overflow
2011         flag.
2012         (scev_const_prop): Add argument to analyze_scalar_evolution_in_loop.
2013         Evaluate expensiveness of computing # of iterations instead of
2014         the final expression.
2015         * tree-scalar-evolution.h (affine_iv): New structure.
2016         (simple_iv): Declaration changed.
2017         * tree-chrec.c (chrec_apply): Handle chrecs containing symbols.
2018         * tree-ssa-loop-ivopts.c (determine_biv_step, find_givs_in_stmt_scev,
2019         find_givs_in_stmt): Changed due to simple_iv change.
2020
2021 2006-01-06  Jeff Law  <law@redhat.com>
2022
2023         PR ada/24994
2024         * tree-cfg.c (bsi_replace): Rename final argument from
2025         PRESERVE_EH_INFO to UPDATE_EH_INFO.  Fix typo in last
2026         change (stmt -> orig_stmt).
2027         * tree-eh.c (verify_eh_throw_stmt_node): New function.
2028         (bsi_remove): Add new argument.  Remove EH information
2029         if requested.
2030         (verify_eh_throw_table_statements): New function.
2031         (bsi_remove): Add new argument REMOVE_EH_INFO.  All callers
2032         updated.
2033         * tree-optimize.c (execute_free_cfg_annotations): Verify
2034         the EH throw statement table after removing annotations.
2035         * except.h (verify_eh_throw_table_statements): Prototype.
2036         * tree-flow.h (bsi_remove): Update prototype.
2037         * tree-vrp.c (remove_range_assertions): Add new argument to
2038         bsi_remove call.
2039         * tree-ssa-loop-im.c (move_computations_stmt): Likewise.
2040         * tree-complex.c (expand_complex_div_wide): Likewise.
2041         * tree-ssa-threadupdate.c (remove_ctrl_stmt_and_useless_edges): Likewise
2042         * tree-tailcall.c (eliminate_tailcall): Likewise.
2043         * tree-ssa-dse.c (dse_optimize_stmt): Likewise.
2044         * tree-ssa-loop-ivopts.c (remove_statement): Likewise.
2045         * tree-nrv.c (tree_nrv): Likewise.
2046         * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Likewise.
2047         * tree-if-conv.c (tree_if_convert_cond_expr): Likewise.
2048         (combine_blocks): Likewise.
2049         * tree-ssa-phiopt.c (replace_phi_edge_with_variable): Likewise.
2050         * tree-cfgcleanup.c (cleanup_ctrl_expr_graph): Likewise.
2051         (cleanup_control_flow): Likewise.
2052         (remove_forwarder_block): Likewise.
2053         * tree-ssa-pre.c (remove_dead_inserted_code): Likewise.
2054         * tree-sra.c (sra_replace): Likewise.
2055         * tree-ssa-forwprop.c (forward_propagate_into_cond): Likewise.
2056         (forward_propagate_single_use_vars): Likewise.
2057         * tree-ssa-dce.c (remove_dead_stmt): Likewise.
2058         * tree-inline.c (expand_call_inline): Likewise.
2059         * tree-vect-transform.c (vect_transform_loop): Likewise.
2060         * tree-outof-ssa.c (rewrite_trees): Likewise.
2061         * tree-cfg.c (make_goto_expr_edges): Likewise.
2062         (cleanup_dead_labels): Likewise.
2063         (tree_merge_blocks, remove_bb, disband_implicit_edges): Likewise.
2064         (bsi_move_before, bsi_move_after): Likewise.
2065         (bsi_move_to_bb_end, try_redirect_by_replacing_jump): Likewise
2066         (tree_redirect_edge_and_branch, tree_split_block): Likewise.
2067
2068 2006-01-06  Andrew Pinski  <pinskia@physics.uc.edu>
2069
2070         PR tree-opt/25528
2071         * tree-ssa-alias.c (find_used_portions): Handle REALPART_EXPR
2072         and IMAGPART_EXPR.
2073         * tree-flow-inline.h (var_can_have_subvars): Handle complex types
2074         on non gimple variables.  Also add checks at the top for decls and
2075         mtags.
2076         * tree-ssa-structalias.c (push_fields_onto_fieldstack): Handle
2077         complex types.
2078         * tree-ssa-operands.c (parse_ssa_operands): Handle REALPART_EXPR
2079         and IMAGPART_EXPR for creating MUST_DEFs.
2080         (get_expr_operands): Handle SSA_NAME, STRUCT_FIELD_TAG, TYPE_MEMORY_TAG,
2081         and NAME_MEMORY_TAG separately from the DECLs.
2082
2083 2006-01-06  Richard Guenther  <rguenther@suse.de>
2084
2085         * tree-dfa.c (mark_new_vars_to_rename): Create stmt
2086         annotation, if necessary.
2087         * tree-ssa-pre.c (create_expression_by_pieces): Remove
2088         redundant calls to update_stmt.
2089         * tree-ssa-forwprop.c (tidy_after_forward_propagate_addr):
2090         Likewise.
2091
2092 2006-01-05  Richard Henderson  <rth@redhat.com>
2093
2094         * c-parser.c (c_parser_objc_methodprotolist): Handle CPP_PRAGMA.
2095
2096 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
2097
2098         * c-typeck.c: Update copyright date.
2099
2100 2006-01-05  Carlos O'Donell  <carlos@codesourcery.com>
2101
2102         * c-typeck.c (build_c_cast): Always warn when casting
2103         from a pointer to an integer of different size, even if
2104         the node was constant.
2105
2106 2006-01-05  Richard Guenther  <rguenther@suse.de>
2107
2108         PR tree-optimization/22555
2109         * tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
2110         if one structure field is an array.
2111         * tree-ssa-operands.c (get_expr_operands): Continue scanning
2112         operands even if we found a subvar, but ignore VOPs in this
2113         case.
2114         * tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
2115         for renaming.
2116         * tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
2117
2118 2006-01-05  Richard Earnshaw  <rearnsha@arm.com>
2119
2120         PR middle-end/24998
2121         * arm/t-netbsd (LIB2FUNCS_EXTRA): Define.
2122
2123 2006-01-05  Richard Guenther  <rguenther@suse.de>
2124             Diego Novillo  <dnovillo@redhat.com>
2125
2126         * tree-pass.h (TODO_remove_unused_locals): Define.
2127         * gimple-low.c (expand_var_p, remove_useless_vars,
2128         pass_remove_useless_vars): Remove.  Update all users.
2129         * tree-ssa-live.c (mark_all_vars_used_1): Handle SSA names.
2130         (remove_unused_locals): New function.
2131         * tree-flow.h (remove_unused_locals): Declare.
2132         * passes.c (execute_todo): Call remove_unused_locals if
2133         TODO_remove_unused_locals is set.
2134         * tree-into-ssa.c (pass_build_ssa): Add TODO_remove_unused_locals.
2135         * tree-ssa-dce.c (pass_dce): Likewise.
2136         * tree-outof-ssa.c (pass_del_ssa): Likewise.
2137
2138 2006-01-05  Richard Guenther  <rguenther@suse.de>
2139
2140         * tree-flow.h (struct fieldoff): Decompose field to
2141         type, size and decl.
2142         * tree-ssa-alias.c (create_sft): Take type as parameter.
2143         (create_overlap_variables_for): Store type, size and decl
2144         in the fieldoff structure.
2145         * tree-ssa-structalias.c (fieldoff_compare): Adjust users
2146         of struct fieldoff.
2147         (push_fields_onto_fieldstack): Likewise.
2148         (create_variable_info_for): Likewise.  Use offset for the
2149         SFT name if the decl is not available.
2150
2151 2006-01-04  Paul Brook  <paul@codesourcery.com>
2152
2153         * config/m68k/m68k.c (m68k_output_mi_thunk): Use jmp, not jsr.
2154
2155 2006-01-04  Daniel Berlin  <dberlin@dberlin.org>
2156
2157         * lambda-code.c (can_put_in_inner_loop): Relax
2158         restrictions.
2159         (can_put_after_inner_loop): New function.
2160         (can_convert_to_perfect_nest): Use can_put_after_inner_loop as well.
2161         (perfect_nestify): Change to make copies and modify uses.
2162
2163 2006-01-04  Richard Henderson  <rth@redhat.com>
2164
2165         Merge from gomp branch:
2166         * c-lex.c (c_lex_with_flags) <CPP_PRAGMA>: Smuggle pragma id
2167         via integer constant.
2168         (pragma_lex): Remove.
2169         * c-pch.c (c_common_pch_pragma): Accept the name as an argument,
2170         rather than parsing it.
2171         * c-pragma.c (handle_pragma_weak, handle_pragma_redefine_extname,
2172         handle_pragma_extern_prefix): Add %< %> quotes.
2173         (registered_pragmas): New.
2174         (c_register_pragma_1): New.
2175         (c_register_pragma): Use it.
2176         (c_register_pragma_with_expansion): Likewise.
2177         (c_invoke_pragma_handler): New.
2178         (init_pragma): Use cpp_register_deferred_pragma directly for
2179         pch_preprocess.
2180         * c-pragma.h (enum pragma_kind): New.
2181         (pragma_handler): New.
2182         (c_invoke_pragma_handler): Declare.
2183         * c-common.c (c_parse_error): Pretty print CPP_PRAGMA and
2184         CPP_PRAGMA_EOL.
2185         * c-common.h (c_common_pch_pragma): Update decl.
2186         * Makefile.in (c-parser.o): Update dependencies.
2187         (GTFILES): Add c-pragma.h.
2188         * c-parser.c (struct c_token): Add pragma_kind.
2189         (struct c_parser): Add in_pragma.
2190         (c_lex_one_token): Always initialize keyword and pragma_kind.
2191         Extract data for CPP_PRAGMA.
2192         (c_parser_peek_2nd_token): Deny CPP_PRAGMA_EOL.
2193         (c_parser_consume_token): Don't allow CPP_PRAGMA unless errors.
2194         Don't allow CPP_PRAGMA_EOL if in_pragma.
2195         (c_parser_consume_pragma): New.
2196         (c_parser_skip_until_found): Stop on CPP_PRAGMA_EOL.
2197         (c_parser_skip_to_end_of_parameter): Likewise.
2198         (c_parser_skip_to_end_of_block_or_statement): Likewise.
2199         (c_parser_skip_to_pragma_eol): New.
2200         (c_parser_external_declaration): Handle CPP_PRAGMA.
2201         (c_parser_compound_statement_nostart): Likewise.
2202         (c_parser_statement_after_labels): Likewise.
2203         (c_parser_pragma): New.
2204         (pragma_lex): Likewise.
2205         (c_parser_pragma_pch_preprocess): New.
2206         (c_parser_new): Merge into ...
2207         (c_parse_file): ... here.  Call c_parser_pragma_pch_preprocess.
2208
2209 2006-01-04  Jeff Law  <law@redhat.com>
2210
2211         PR ada/24994
2212         * tree-cfg.c (bsi_replace): Remove the original statement
2213         from the EH throw statement table.
2214
2215 2006-01-04  Jakub Jelinek  <jakub@redhat.com>
2216
2217         * config/i386/pmm_malloc.h (posix_memalign): If __cplusplus,
2218         make the prototype extern "C" and add throw ().
2219
2220         PR target/25554
2221         * config/i386/i386.md (testqi_ext_3): Ensure len is positive
2222         and pos non-negative and pos + len <= 32.
2223         (testqi_ext_3_rex64): Ensure len is positive and pos non-negative,
2224         drop pos + len < HOST_BITS_PER_WIDE_INT test.
2225         (testqi_ext_3* splitter): Handle pos + len == HOST_BITS_PER_WIDE_INT.
2226
2227         PR c/25559
2228         * c-common.c (handle_vector_size_attribute): Reject zero vector size
2229         as well as sizes not multiple of component size.
2230
2231         PR debug/25562
2232         * function.c (instantiate_expr): New function.
2233         (instantiate_decls_1, instantiate_decls): If DECL_HAS_VALUE_EXPR_P,
2234         walk its DECL_VALUE_EXPR with instantiate_expr.
2235
2236         * dwarf2out.c (loc_descriptor_from_tree_1): Don't add
2237         DW_OP_deref{,_size} if address isn't going to be added.
2238
2239 2006-01-04  Ben Elliston  <bje@au.ibm.com>
2240
2241         * config/fp-bit.h: Use top-of-file comment from libgcc2.c.
2242         * config/fp-bit.c: Likewise.
2243
2244 2006-01-03  Daniel Berlin  <dberlin@dberlin.org>
2245
2246         * dominance.c: Add comment about why we use DFS numbering
2247         of dominance tree.
2248
2249 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
2250             Richard Henderson  <rth@redhat.com>
2251
2252         Merge from gomp-branch:
2253         * varasm.c (assemble_variable): Handle thread-local COMMON data.
2254         * defaults.h (ASM_OUTPUT_TLS_COMMON): Define.
2255
2256 2006-01-03  Paolo Bonzini  <bonzini@gnu.org>
2257
2258         PR rtl-optimization/25578
2259         * combine.c (combine_simplify_rtx, force_to_mode): Don't
2260         pass a parameter to simplify_shift_const if changing ASHIFTRT
2261         to LSHIFTRT.
2262
2263 2006-01-03  Adrian Straetling  <straetling@de.ibm.com>
2264
2265         * builtins.c (get_builtin_sync_mem): New function.
2266         (expand_builtin_sync_operation, expand_builtin_compare_and_swap,
2267         expand_builtin_lock_test_and_set, expand_builtin_lock_release):
2268         Call get_builtin_sync_mem to generate mem rtx.
2269
2270 2006-01-03  Richard Guenther  <rguenther@suse.de>
2271
2272         PR c/25183
2273         * stmt.c (add_case_node): Make sure to clear overflow flags
2274         from ranges.
2275
2276 2006-01-03  Jakub Jelinek  <jakub@redhat.com>
2277
2278         Merge from gomp-branch.
2279         * config/sparc/sync.md: New file.
2280         * config/sparc/sparc.md (UNSPECV_MEMBAR, UNSPECV_CAS, UNSPECV_SWAP,
2281         UNSPECV_LDSTUB): New constants.
2282         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): New function.
2283         * config/sparc/predicates.md (memory_reg_operand): New predicate.
2284         * config/sparc/sparc-protos.h (sparc_expand_compare_and_swap_12): New
2285         prototype.
2286
2287 2006-01-03  Roger Sayle  <roger@eyesopen.com>
2288
2289         * combine.c (reg_subword_p): New predicate to test whether the
2290         destination of a set refers to a subword/piece of a register.
2291         (try_combine): Generalize the code to merge the setting of a
2292         pseudo to a constant followed by a set of a subword of that
2293         register to a constant.
2294
2295 2006-01-03  Kazu Hirata  <kazu@codesourcery.com>
2296
2297         * basic-block.h (control_flow_graph): Change the type of
2298         x_label_to_block_map to VEC(basic_block,gc) *.
2299         * tree-cfg.c (init_empty_tree_cfg, label_to_block_fn,
2300         set_bb_for_stmt): Adjust the uses of x_label_to_block_map.
2301
2302         * tree-ssa-propagate.c (cfg_blocks): Change the type to
2303         VEC(basic_block,heap) *.
2304         (cfg_blocks_add, cfg_blocks_get, ssa_prop_init,
2305         ssa_prop_fini): Adjust the uses of cfg_blocks.
2306
2307 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
2308
2309         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
2310         COMPONENT_REFs.
2311         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
2312         hashing trees instead of a pointer hash.
2313         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
2314         compare for MEM_EXPR.
2315
2316         PR rtl-optimization/25130
2317         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
2318         when comparing MEMs for GCSE
2319
2320 2006-01-03  Ben Elliston  <bje@au.ibm.com>
2321
2322         * targhooks.h (default_decimal_float_supported_p): Declare.
2323         * targhooks.c (default_decimal_float_supported_p): Define.
2324         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
2325         `default_decimal_float_supported_p'.
2326         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
2327
2328 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
2329
2330         * combine.c (apply_distributive_law <SUBREG>): Check
2331         TRULY_NOOP_TRUNCATION.
2332
2333 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
2334
2335         * dwarf2out.c (have_switched_text_section): Delete.
2336         (have_multiple_function_sections): New.
2337         (have_location_lists): Make 'bool'.
2338         (add_AT_loc_list): Use 'true' not '1'.
2339         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
2340         (output_loc_list): Use have_multiple_function_sections.
2341         (output_ranges): Likewise.
2342         (dwarf2out_begin_function): Set have_multiple_function_sections if
2343         necessary.
2344         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
2345         Check function_section rather than DECL_SECTION_NAME.
2346         (dwarf2out_finish): Use have_multiple_function_sections.
2347         Don't clear have_location_lists.
2348
2349 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
2350             Jan Hubicka  <jh@suse.cz>
2351
2352         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
2353         case of conditional jump jumping to the next instruction.
2354         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
2355         cases of conditional jump jumping to the next instruction.
2356
2357 2006-01-02  Jan Hubicka  <jh@suse.cz>
2358
2359         * i386.c (*_cost): Add COSTS_N_INSNS.
2360         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
2361
2362 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
2363
2364         PR target/25259
2365         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
2366
2367 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
2368
2369         * config/arm/arm.c (all_fpus): Fix comment typo.
2370         * config/darwin.c: Likewise.
2371         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
2372         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
2373         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
2374
2375 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
2376
2377         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
2378         (rs6000_split_compare_and_swapqhi): New.
2379         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
2380         (sync_compare_and_swapqhi_internal): New.
2381         * config/rs6000/rs6000-protos.h: Declare.