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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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@245974 138bc75d-0d04-0410-961f-82ee72b054a4
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* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@245196 138bc75d-0d04-0410-961f-82ee72b054a4
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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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@244811 138bc75d-0d04-0410-961f-82ee72b054a4
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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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@244086 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243994 138bc75d-0d04-0410-961f-82ee72b054a4
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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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@243606 138bc75d-0d04-0410-961f-82ee72b054a4
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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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241551 138bc75d-0d04-0410-961f-82ee72b054a4
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PR tree-optimization/78076
* tree-ssa-loop-split.c (tree_ssa_split_loops): Reset aux
also on the loop tree root.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241467 138bc75d-0d04-0410-961f-82ee72b054a4
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* match.pd: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241398 138bc75d-0d04-0410-961f-82ee72b054a4
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(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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@241374 138bc75d-0d04-0410-961f-82ee72b054a4
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