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| author | Richard Biener <rguenther@suse.de> | 2021-07-15 14:30:48 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-07-16 09:41:23 +0200 |
| commit | a314d50336db752f2ae2c50262956ce4490567ac (patch) | |
| tree | a7f07adc552c6d731d823387102bfcbc26dcf81e /gcc | |
| parent | adc03d72c3fd9ce4902f09951ca2765eef848783 (diff) | |
| download | gcc-a314d50336db752f2ae2c50262956ce4490567ac.zip gcc-a314d50336db752f2ae2c50262956ce4490567ac.tar.gz gcc-a314d50336db752f2ae2c50262956ce4490567ac.tar.bz2 | |
Disable --param vect-partial-vector-usage by default on x86
The following defaults --param vect-partial-vector-usage to zero
for x86_64 matching existing behavior where support for this
is not present.
2021-07-15 Richard Biener <rguenther@suse.de>
* config/i386/i386-options.c (ix86_option_override_internal): Set
param_vect_partial_vector_usage to zero if not set.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386-options.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/config/i386/i386-options.c b/gcc/config/i386/i386-options.c index 7cba655..3416a4f 100644 --- a/gcc/config/i386/i386-options.c +++ b/gcc/config/i386/i386-options.c @@ -2834,6 +2834,11 @@ ix86_option_override_internal (bool main_args_p, SET_OPTION_IF_UNSET (opts, opts_set, param_ira_consider_dup_in_all_alts, 0); + /* Fully masking the main or the epilogue vectorized loop is not + profitable generally so leave it disabled until we get more + fine grained control & costing. */ + SET_OPTION_IF_UNSET (opts, opts_set, param_vect_partial_vector_usage, 0); + return true; } |