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* re PR tree-optimization/79390 (10% performance drop in SciMark2 LU after ↵Richard Biener2017-04-121-3/+7
| | | | | | | | | | | | r242550) 2017-04-12 Richard Biener <rguenther@suse.de> PR tree-optimization/79390 * gimple-ssa-split-paths.c (is_feasible_trace): Restrict threading case even more. From-SVN: r246869
* re PR tree-optimization/79389 (30% performance regression in SciMark2 ↵Richard Biener2017-02-241-5/+11
| | | | | | | | | | | | MonteCarlo) 2017-02-24 Richard Biener <rguenther@suse.de> PR tree-optimization/79389 * gimple-ssa-split-paths.c (is_feasible_trace): Properly skip debug insns. From-SVN: r245713
* re PR tree-optimization/79389 (30% performance regression in SciMark2 ↵Richard Biener2017-02-241-2/+47
| | | | | | | | | | | | | | | MonteCarlo) 2017-02-24 Richard Biener <rguenther@suse.de> PR tree-optimization/79389 * gimple-ssa-split-paths.c (is_feasible_trace): Verify more properly that a threading opportunity exists. Detect conditional copy/constant propagation opportunities. * gcc.dg/tree-ssa/split-path-10.c: New testcase. From-SVN: r245696
* re PR tree-optimization/77283 (Revision 238005 disables loop unrolling)Richard Biener2017-01-131-0/+55
| | | | | | | | | | | | | | | | 2017-01-13 Richard Biener <rguenther@suse.de> PR tree-optimization/77283 * gimple-ssa-split-paths.c: Include gimple-ssa.h, tree-phinodes.h and ssa-iterators.h. (is_feasible_trace): Implement a cost model based on joiner PHI node uses. * gcc.dg/tree-ssa/split-path-7.c: Adjust. * gcc.dg/tree-ssa/split-path-8.c: New testcase. * gcc.dg/tree-ssa/split-path-9.c: Likewise. From-SVN: r244392
* Update copyright years.Jakub Jelinek2017-01-011-1/+1
| | | | From-SVN: r243994
* gimple-ssa-split-paths.c (find_block_to_duplicate_for_splitting_pa): Handle ↵Richard Biener2016-07-051-8/+17
| | | | | | | | | | | | | empty else block. 2016-07-05 Richard Biener <rguenther@suse.de> * gimple-ssa-split-paths.c (find_block_to_duplicate_for_splitting_pa): Handle empty else block. (is_feasible_trace): Likewise. (split_paths): Likewise. From-SVN: r238005
* re PR tree-optimization/69999 (ICE in verify_loop_structure, at ↵Jeff Law2016-02-291-0/+18
| | | | | | | | | | | | | | cfgloop.c:1639 (error: loop with header 3 not in loop tree) at -O3 or -Ofast) PR tree-optimization/69999 * gimple-ssa-split-paths.c (split_paths): When duplicating a block with an outgoing edge marked with EDGE_IRREDUCIBLE_LOOP, schedule loop cleanups. PR tree-optimization/69999 * gcc.c-torture/compile/pr69999.c: New test. From-SVN: r233824
* re PR tree-optimization/68541 (Path splitting causes if-conversion miss)Jeff Law2016-02-051-12/+101
| | | | | | | | | | | | | | | | | | | | | PR tree-optimization/68541 * gimple-ssa-split-paths.c: Include tree-cfg.h and params.h. (count_stmts_in_block): New function. (poor_ifcvt_candidate_code): Likewise. (is_feasible_trace): Add some heuristics to determine when path splitting is profitable. (find_block_to_duplicate_for_splitting_paths): Make sure the graph is a diamond with a single exit. PR tree-optimization/68541 * gcc.dg/tree-ssa/split-path-2.c: New test. * gcc.dg/tree-ssa/split-path-3.c: New test. * gcc.dg/tree-ssa/split-path-4.c: New test. * gcc.dg/tree-ssa/split-path-5.c: New test. * gcc.dg/tree-ssa/split-path-6.c: New test. * gcc.dg/tree-ssa/split-path-7.c: New test. From-SVN: r233191
* tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the ↵Jakub Jelinek2016-01-231-1/+1
| | | | | | | | | | | | | | | | | | | | | the" with "the" in the comments. * tree-ssanames.c (release_free_names_and_compact_live_names): Replace "the the" with "the" in the comments. * ipa-devirt.c (build_type_inheritance_graph, update_type_inheritance_graph): Likewise. * tree.c (build_function_type_list_1): Likewise. * cfgloopmanip.c (scale_loop_profile): Likewise. * tree-ssa-loop-ivopts.c (get_shiftadd_cost): Likewise. * gimple-ssa-split-paths.c (find_block_to_duplicate_for_splitting_paths): Likewise. * tree-sra.c (init_subtree_with_zero, clobber_subtree): Likewise. * expr.c (convert_move): Likewise. * var-tracking.c (vt_stack_adjustments): Likewise. * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Likewise. * tree-vrp.c (test_for_singularity): Likewise. From-SVN: r232765
* Update copyright years.Jakub Jelinek2016-01-041-1/+1
| | | | From-SVN: r232055
* [PATCH] Avoid unnecessary block copying in path splittingJeff Law2015-12-221-5/+4
| | | | | | | * gimple-ssa-split-paths.c (split_paths): Avoid unnecessary block copying. From-SVN: r231915
* [PATCH] Limit path splitting to loops we optimize for speedJeff Law2015-12-171-1/+7
| | | | | | | | | | | | | | | * doc/invoke.texi (-O2 options): Remove -fsplit-paths. (-O3 options): Add -fsplit-paths. * gimple-ssa-split-paths.c: Include predict.h (split_paths): Only split paths in a loop that should be optimized for speed. * opts.c (default_options_table): Move -fsplit-paths from -O2 to -O3. * gcc.dg/tree-ssa/split-path-1.c: Explicitly ask for path splitting optimizations. From-SVN: r231790
* [Patch,tree-optimization]: Add new path Splitting pass on tree ssaAjit Agarwal2015-11-131-0/+270
representation * Makefile.in (OBJS): Add gimple-ssa-split-paths.o * common.opt (-fsplit-paths): New flag controlling path splitting. * doc/invoke.texi (fsplit-paths): Document. * opts.c (default_options_table): Add -fsplit-paths to -O2. * passes.def: Add split_paths pass. * timevar.def (TV_SPLIT_PATHS): New timevar. * tracer.c: Include "tracer.h" (ignore_bb_p): No longer static. (transform_duplicate): New function, broken out of tail_duplicate. (tail_duplicate): Use transform_duplicate. * tracer.h (ignore_bb_p): Declare (transform_duplicate): Likewise. * tree-pass.h (make_pass_split_paths): Declare. * gimple-ssa-split-paths.c: New file. * gcc.dg/tree-ssa/split-path-1.c: New test. Co-Authored-By: Jeff Law <law@redhat.com> From-SVN: r230364
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