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authorBin Cheng <bin.cheng@arm.com>2017-12-07 18:03:53 +0000
committerBin Cheng <amker@gcc.gnu.org>2017-12-07 18:03:53 +0000
commitfbdec14e80e9399cd301ed30340268bdc5b5c2eb (patch)
tree6174dc33b68cbeea645678d9d23bde9cd4603643 /gcc/common.opt
parent75214935bee043e659ca7172a84451ded10e8987 (diff)
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re PR tree-optimization/81303 (410.bwaves regression caused by r249919)
PR tree-optimization/81303 * Makefile.in (gimple-loop-interchange.o): New object file. * common.opt (floop-interchange): Reuse the option from graphite. * doc/invoke.texi (-floop-interchange): Ditto. New document for -floop-interchange and mention it for -O3. * opts.c (default_options_table): Enable -floop-interchange at -O3. * gimple-loop-interchange.cc: New file. * params.def (PARAM_LOOP_INTERCHANGE_MAX_NUM_STMTS): New parameter. (PARAM_LOOP_INTERCHANGE_STRIDE_RATIO): New parameter. * passes.def (pass_linterchange): New pass. * timevar.def (TV_LINTERCHANGE): New time var. * tree-pass.h (make_pass_linterchange): New declaration. * tree-ssa-loop-ivcanon.c (create_canonical_iv): Change to external interchange. Record IV before/after increment in new parameters. * tree-ssa-loop-ivopts.h (create_canonical_iv): New declaration. * tree-vect-loop.c (vect_is_simple_reduction): Factor out reduction path check into... (check_reduction_path): ...New function here. * tree-vectorizer.h (check_reduction_path): New declaration. gcc/testsuite * gcc.dg/tree-ssa/loop-interchange-1.c: New test. * gcc.dg/tree-ssa/loop-interchange-1b.c: New test. * gcc.dg/tree-ssa/loop-interchange-2.c: New test. * gcc.dg/tree-ssa/loop-interchange-3.c: New test. * gcc.dg/tree-ssa/loop-interchange-4.c: New test. * gcc.dg/tree-ssa/loop-interchange-5.c: New test. * gcc.dg/tree-ssa/loop-interchange-6.c: New test. * gcc.dg/tree-ssa/loop-interchange-7.c: New test. * gcc.dg/tree-ssa/loop-interchange-8.c: New test. * gcc.dg/tree-ssa/loop-interchange-9.c: New test. * gcc.dg/tree-ssa/loop-interchange-10.c: New test. * gcc.dg/tree-ssa/loop-interchange-11.c: New test. * gcc.dg/tree-ssa/loop-interchange-12.c: New test. * gcc.dg/tree-ssa/loop-interchange-13.c: New test. Co-Authored-By: Richard Biener <rguenther@suse.de> From-SVN: r255472
Diffstat (limited to 'gcc/common.opt')
-rw-r--r--gcc/common.opt4
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/common.opt b/gcc/common.opt
index 682755f..6fab2ab 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1504,8 +1504,8 @@ Common Alias(floop-nest-optimize)
Enable loop nest transforms. Same as -floop-nest-optimize.
floop-interchange
-Common Alias(floop-nest-optimize)
-Enable loop nest transforms. Same as -floop-nest-optimize.
+Common Report Var(flag_loop_interchange) Optimization
+Enable loop interchange on trees.
floop-block
Common Alias(floop-nest-optimize)