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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2016-10-28 14:18:50 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2016-10-28 14:18:50 +0000 |
| commit | f663d9ad6eaa6ff32676981461e865f96cb7c151 (patch) | |
| tree | c6b6f30f38de29c8fcc46fc859446438b55c447f /gcc/common.opt | |
| parent | 1f5700e95225d0a95cae2f96c17699c4d133f5e0 (diff) | |
| download | gcc-f663d9ad6eaa6ff32676981461e865f96cb7c151.zip gcc-f663d9ad6eaa6ff32676981461e865f96cb7c151.tar.gz gcc-f663d9ad6eaa6ff32676981461e865f96cb7c151.tar.bz2 | |
GIMPLE store merging pass
2016-10-28 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR middle-end/22141
* Makefile.in (OBJS): Add gimple-ssa-store-merging.o.
* common.opt (fstore-merging): New Optimization option.
* opts.c (default_options_table): Add entry for
OPT_ftree_store_merging.
* fold-const.h (can_native_encode_type_p): Declare prototype.
* fold-const.c (can_native_encode_type_p): Define.
* params.def (PARAM_STORE_MERGING_ALLOW_UNALIGNED): Define.
(PARAM_MAX_STORES_TO_MERGE): Likewise.
* timevar.def (TV_GIMPLE_STORE_MERGING): New timevar.
* passes.def: Insert pass_tree_store_merging.
* tree-pass.h (make_pass_store_merging): Declare extern
prototype.
* gimple-ssa-store-merging.c: New file.
* doc/invoke.texi (Optimization Options): Document
-fstore-merging.
(--param documentation): Document store-merging-allow-unaligned
and max-stores-to-merge.
2016-10-28 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Jakub Jelinek <jakub@redhat.com>
Andrew Pinski <pinskia@gmail.com>
PR middle-end/22141
PR rtl-optimization/23684
* gcc.c-torture/execute/pr22141-1.c: New test.
* gcc.c-torture/execute/pr22141-2.c: Likewise.
* gcc.target/aarch64/ldp_stp_1.c: Adjust for -fstore-merging.
* gcc.target/aarch64/ldp_stp_4.c: Likewise.
* gcc.dg/store_merging_1.c: New test.
* gcc.dg/store_merging_2.c: Likewise.
* gcc.dg/store_merging_3.c: Likewise.
* gcc.dg/store_merging_4.c: Likewise.
* gcc.dg/store_merging_5.c: Likewise.
* gcc.dg/store_merging_6.c: Likewise.
* gcc.dg/store_merging_7.c: Likewise.
* gcc.target/i386/pr22141.c: Likewise.
* gcc.target/i386/pr34012.c: Add -fno-store-merging to dg-options.
* g++.dg/init/new17.C: Likewise.
Co-Authored-By: Andrew Pinski <pinskia@gmail.com>
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r241649
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index 1872d51..20dbfc1 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -1463,6 +1463,10 @@ fstrict-volatile-bitfields Common Report Var(flag_strict_volatile_bitfields) Init(-1) Optimization Force bitfield accesses to match their type width. +fstore-merging +Common Report Var(flag_store_merging) Optimization +Merge adjacent stores. + fguess-branch-probability Common Report Var(flag_guess_branch_prob) Optimization Enable guessing of branch probabilities. |