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| author | Richard Biener <rguenther@suse.de> | 2019-10-15 07:28:26 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-10-15 07:28:26 +0000 |
| commit | e622a32db78300821fc1327637ec6413febc2c66 (patch) | |
| tree | fd98ddc8ba44f1a15b3252553cd393c44d7ab2d4 /gcc/doc | |
| parent | 3c8e341b996546607fa1f39a0fd9a9d7c2c38214 (diff) | |
| download | gcc-e622a32db78300821fc1327637ec6413febc2c66.zip gcc-e622a32db78300821fc1327637ec6413febc2c66.tar.gz gcc-e622a32db78300821fc1327637ec6413febc2c66.tar.bz2 | |
re PR middle-end/92046 (Command line options (that are per-functions) are affecting --params which are global.)
2019-10-15 Richard Biener <rguenther@suse.de>
PR middle-end/92046
* common.opt (fallow-store-data-races): New.
* params.def (PARAM_ALLOW_STORE_DATA_RACES): Remove.
* params.h (ALLOW_STORE_DATA_RACES): Likewise.
* doc/invoke.texi (fallow-store-data-races): Document.
(--param allow-store-data-races): Remove docs.
* opts.c (default_options_table): Enable -fallow-store-data-races
at -Ofast.
(default_options_optimization): Do not enable --param
allow-store-data-races at -Ofast.
* tree-if-conv.c (ifcvt_memrefs_wont_trap): Use flag_store_data_races
instead of PARAM_ALLOW_STORE_DATA_RACES.
* tree-ssa-loop-im.c (execute_sm): Likewise.
* c-c++-common/cxxbitfields-3.c: Adjust.
* c-c++-common/cxxbitfields-6.c: Likewise.
* c-c++-common/simulate-thread/bitfields-1.c: Likewise.
* c-c++-common/simulate-thread/bitfields-2.c: Likewise.
* c-c++-common/simulate-thread/bitfields-3.c: Likewise.
* c-c++-common/simulate-thread/bitfields-4.c: Likewise.
* g++.dg/simulate-thread/bitfields-2.C: Likewise.
* g++.dg/simulate-thread/bitfields.C: Likewise.
* gcc.dg/lto/pr52097_0.c: Likewise.
* gcc.dg/simulate-thread/speculative-store-2.c: Likewise.
* gcc.dg/simulate-thread/speculative-store-3.c: Likewise.
* gcc.dg/simulate-thread/speculative-store-4.c: Likewise.
* gcc.dg/simulate-thread/speculative-store.c: Likewise.
* gcc.dg/tree-ssa/20050314-1.c: Likewise.
From-SVN: r276985
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 085e8b0..4776926 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -406,6 +406,7 @@ Objective-C and Objective-C++ Dialects}. -falign-jumps[=@var{n}[:@var{m}:[@var{n2}[:@var{m2}]]]] @gol -falign-labels[=@var{n}[:@var{m}:[@var{n2}[:@var{m2}]]]] @gol -falign-loops[=@var{n}[:@var{m}:[@var{n2}[:@var{m2}]]]] @gol +-fallow-store-data-races @gol -fassociative-math -fauto-profile -fauto-profile[=@var{path}] @gol -fauto-inc-dec -fbranch-probabilities @gol -fcaller-saves @gol @@ -8463,9 +8464,9 @@ designed to reduce code size. Disregard strict standards compliance. @option{-Ofast} enables all @option{-O3} optimizations. It also enables optimizations that are not valid for all standard-compliant programs. -It turns on @option{-ffast-math} and the Fortran-specific -@option{-fstack-arrays}, unless @option{-fmax-stack-var-size} is -specified, and @option{-fno-protect-parens}. +It turns on @option{-ffast-math}, @option{-fallow-store-data-races} +and the Fortran-specific @option{-fstack-arrays}, unless +@option{-fmax-stack-var-size} is specified, and @option{-fno-protect-parens}. @item -Og @opindex Og @@ -10227,6 +10228,12 @@ The maximum allowed @var{n} option value is 65536. Enabled at levels @option{-O2}, @option{-O3}. +@item -fallow-store-data-races +@opindex fallow-store-data-races +Allow the compiler to introduce new data races on stores. + +Enabled at level @option{-Ofast}. + @item -funit-at-a-time @opindex funit-at-a-time This option is left for compatibility reasons. @option{-funit-at-a-time} @@ -12060,10 +12067,6 @@ The maximum number of conditional store pairs that can be sunk. Set to 0 if either vectorization (@option{-ftree-vectorize}) or if-conversion (@option{-ftree-loop-if-convert}) is disabled. -@item allow-store-data-races -Allow optimizers to introduce new data races on stores. -Set to 1 to allow, otherwise to 0. - @item case-values-threshold The smallest number of different values for which it is best to use a jump-table instead of a tree of conditional branches. If the value is |