diff options
| author | Bin Cheng <bin.cheng@arm.com> | 2017-12-07 18:03:53 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2017-12-07 18:03:53 +0000 |
| commit | fbdec14e80e9399cd301ed30340268bdc5b5c2eb (patch) | |
| tree | 6174dc33b68cbeea645678d9d23bde9cd4603643 /gcc/params.def | |
| parent | 75214935bee043e659ca7172a84451ded10e8987 (diff) | |
| download | gcc-fbdec14e80e9399cd301ed30340268bdc5b5c2eb.zip gcc-fbdec14e80e9399cd301ed30340268bdc5b5c2eb.tar.gz gcc-fbdec14e80e9399cd301ed30340268bdc5b5c2eb.tar.bz2 | |
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/params.def')
| -rw-r--r-- | gcc/params.def | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def index 0f4b367..923ebc8 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -790,6 +790,20 @@ DEFPARAM (PARAM_L2_CACHE_SIZE, "The size of L2 cache.", 512, 0, 0) +/* Maximum number of statements in loop nest for loop interchange. */ + +DEFPARAM (PARAM_LOOP_INTERCHANGE_MAX_NUM_STMTS, + "loop-interchange-max-num-stmts", + "The maximum number of stmts in loop nest for loop interchange.", + 64, 0, 0) + +/* Minimum stride ratio for loop interchange to be profitiable. */ + +DEFPARAM (PARAM_LOOP_INTERCHANGE_STRIDE_RATIO, + "loop-interchange-stride-ratio", + "The minimum stride ratio for loop interchange to be profitable", + 2, 0, 0) + /* Whether we should use canonical types rather than deep "structural" type checking. Setting this value to 1 (the default) improves compilation performance in the C++ and Objective-C++ front end; |