diff options
Diffstat (limited to 'gcc/opts.c')
| -rw-r--r-- | gcc/opts.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/opts.c b/gcc/opts.c index 3ab06c67c39..19203dc8b5d 100644 --- a/gcc/opts.c +++ b/gcc/opts.c @@ -620,6 +620,13 @@ default_options_optimization (struct gcc_options *opts, opt2 ? default_param_value (PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP) : 1000, opts->x_param_values, opts_set->x_param_values); + /* At -Ofast, allow store motion to introduce potential race conditions. */ + maybe_set_param_value + (PARAM_ALLOW_STORE_DATA_RACES, + opts->x_optimize_fast ? 1 + : default_param_value (PARAM_ALLOW_STORE_DATA_RACES), + opts->x_param_values, opts_set->x_param_values); + if (opts->x_optimize_size) /* We want to crossjump as much as possible. */ maybe_set_param_value (PARAM_MIN_CROSSJUMP_INSNS, 1, |