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2017-03-08re PR tree-optimization/79943 (Loop splitting breaks with loops of pointer type)Andrew Haley1-1/+0
2017-03-08 Andrew Haley <aph@redhat.com> PR tree-optimization/79943 * tree-ssa-loop-split.c (compute_new_first_bound): When calculating the new upper bound, (END-BEG) should be added, not subtracted. From-SVN: r245974
2017-02-05re PR tree-optimization/79347 (vect_do_peeling is messing up profile)Jan Hubicka1-1/+2
PR tree-ssa/79347 * cfgloopmanip.c (lv_adjust_loop_entry_edge, loop_version): Add ELSE_PROB. * cfgloopmanip.h (loop_version): Update prototype. * modulo-sched.c (sms_schedule): Update call of loop_version. * tree-if-conv.c(version_loop_for_if_conversion): Likewise. * tree-parloops.c (gen_parallel_loop): Likewise. * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Likewise. * tree-ssa-loop-split.c (split_loop): Likewise. * tree-ssa-loop-unswitch.c (tree_unswitch_loop): Likewise. * tree-vect-loop-manip.c (vect_loop_versioning): Likewise. * gcc.dg/tree-ssa/ifc-10.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-11.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-12.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-20040816-1.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-20040816-2.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-5.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-8.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-9.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-cd.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-pr56541.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-pr68583.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-pr69489-1.c: Match for profile mismatches. * gcc.dg/tree-ssa/ifc-pr69489-2.c: Match for profile mismatches. From-SVN: r245196
2017-01-23fix pr78384Michael Matz1-1/+1
PR tree-optimization/78384 * tree-ssa-loop-split.c (patch_loop_exit): Use correct edge. testsuite/ PR tree-optimization/78384 * gcc.dg/pr78384.c: New test. From-SVN: r244811
2017-01-05[bootstrap-O1] add initializers to avoid warnings at -O1Alexandre Oliva1-1/+1
Building with the bootstrap-O1 configuration option fails to compile a number of files due to AFAICT false-positive warnings about uses of uninitialized variables. This patch adds dummy initializers to silence them all. for gcc/ChangeLog * multiple_target.c (create_dispatcher_calls): Init e_next. * tree-ssa-loop-split.c (split_loop): Init border. * tree-vect-loop.c (vect_determine_vectorization_factor): Init scalar_type. From-SVN: r244086
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-12-13Fix pr78725Michael Matz1-2/+5
PR tree-optimization/78725 * tree-ssa-loop-split.c (split_at_bb_p): Check for overflow and at correct use point. testsuite/ PR tree-optimization/78725 * gcc.dg/pr78725.c: New test. * gcc.dg/pr78725-2.c: New test. From-SVN: r243606
2016-10-26fix pr78060 pr78061 pr78088Michael Matz1-18/+45
PR tree-optimization/78060 PR tree-optimization/78061 PR tree-optimization/78088 * tree-ssa-loop-split.c (easy_exit_values): New function. (tree_ssa_split_loops): Use it. (compute_new_first_bound): Change order of operations, fix invalid use of types. testsuite/ * g++.dg/pr78060.C: New test. * gfortran.dg/pr78061.f: New test. * g++.dg/pr78088.C: New test. From-SVN: r241551
2016-10-24re PR tree-optimization/78076 (Conditional jump or move depends on ↵Richard Biener1-2/+2
uninitialised value @ tree-vect-loop.c:2307) 2016-10-24 Richard Biener <rguenther@suse.de> PR tree-optimization/78076 * tree-ssa-loop-split.c (tree_ssa_split_loops): Reset aux also on the loop tree root. From-SVN: r241467
2016-10-21tree-ssa-loop-split.c: Remove trailing spaces.Eric Botcazou1-3/+3
* tree-ssa-loop-split.c: Remove trailing spaces. * match.pd: Likewise. From-SVN: r241398
2016-10-20loop splittingMichael Matz1-0/+687
(approved at https://gcc.gnu.org/ml/gcc-patches/2015-12/msg00648.html ) * common.opt (-fsplit-loops): New flag. * passes.def (pass_loop_split): Add. * opts.c (default_options_table): Add OPT_fsplit_loops entry at -O3. (enable_fdo_optimizations): Add loop splitting. * timevar.def (TV_LOOP_SPLIT): Add. * tree-pass.h (make_pass_loop_split): Declare. * tree-ssa-loop-manip.h (rewrite_into_loop_closed_ssa_1): Declare. * tree-ssa-loop-unswitch.c: Include tree-ssa-loop-manip.h, * tree-ssa-loop-split.c: New file. * Makefile.in (OBJS): Add tree-ssa-loop-split.o. * doc/invoke.texi (fsplit-loops): Document. * doc/passes.texi (Loop optimization): Add paragraph about loop splitting. testsuite/ * gcc.dg/loop-split.c: New test. * gcc.dg/tree-ssa/ifc-9.c: Update. * gcc.dg/tree-ssa/ifc-10.c: Update. From-SVN: r241374
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