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| author | Georg-Johann Lay <avr@gjlay.de> | 2019-10-17 15:06:22 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2019-10-17 15:06:22 +0000 |
| commit | 4c3784ae0fb0a3cc3a3a6c262e6dff0908a0d795 (patch) | |
| tree | 5bc39326a1c73231feade718a58f7012bc7584ad /gcc/common | |
| parent | 25e22b199bee93f071e8f16e2f0c0684f7a6fe98 (diff) | |
| download | gcc-4c3784ae0fb0a3cc3a3a6c262e6dff0908a0d795.zip gcc-4c3784ae0fb0a3cc3a3a6c262e6dff0908a0d795.tar.gz gcc-4c3784ae0fb0a3cc3a3a6c262e6dff0908a0d795.tar.bz2 | |
Fix breakage introduced by r276985.
* config/avr/avr.c (avr_option_override): Remove set of
PARAM_ALLOW_STORE_DATA_RACES.
* common/config/avr/avr-common.c (avr_option_optimization_table)
[OPT_LEVELS_ALL]: Turn on -fallow-store-data-races.
From-SVN: r277115
Diffstat (limited to 'gcc/common')
| -rw-r--r-- | gcc/common/config/avr/avr-common.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/common/config/avr/avr-common.c b/gcc/common/config/avr/avr-common.c index 15ba440..dae42e7 100644 --- a/gcc/common/config/avr/avr-common.c +++ b/gcc/common/config/avr/avr-common.c @@ -38,6 +38,11 @@ static const struct default_options avr_option_optimization_table[] = { OPT_LEVELS_ALL, OPT_fcaller_saves, NULL, 0 }, { OPT_LEVELS_1_PLUS_NOT_DEBUG, OPT_mgas_isr_prologues, NULL, 1 }, { OPT_LEVELS_1_PLUS, OPT_mmain_is_OS_task, NULL, 1 }, + /* Allow optimizer to introduce store data races. This used to be the + default -- it was changed because bigger targets did not see any + performance decrease. For the AVR though, disallowing data races + introduces additional code in LIM and increases reg pressure. */ + { OPT_LEVELS_ALL, OPT_fallow_store_data_races, NULL, 1 }, { OPT_LEVELS_NONE, 0, NULL, 0 } }; |