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| author | Kewen Lin <linkw@linux.ibm.com> | 2021-07-05 20:54:16 -0500 |
|---|---|---|
| committer | Kewen Lin <linkw@linux.ibm.com> | 2021-07-05 20:54:16 -0500 |
| commit | c64d15224c6dc4dc3b6b3c2c6b6fd5c7e0e9c072 (patch) | |
| tree | 1afddb6c07a4b2726ce7b306cded88b3b1a79571 /gcc | |
| parent | 8ffe25eefae57fb3a228a2d31a57af5bdab8911f (diff) | |
| download | gcc-c64d15224c6dc4dc3b6b3c2c6b6fd5c7e0e9c072.zip gcc-c64d15224c6dc4dc3b6b3c2c6b6fd5c7e0e9c072.tar.gz gcc-c64d15224c6dc4dc3b6b3c2c6b6fd5c7e0e9c072.tar.bz2 | |
i386: Disable param ira-consider-dup-in-all-alts [PR100328]
With Hongtao's SPEC2017 performance evaluation result here:
https://gcc.gnu.org/pipermail/gcc-patches/2021-June/573986.html
this new parameter ira-consider-dup-in-all-alts has negative
effects on i386, this patch is to disable it explicitly on
i386.
Bootstrapped & regtested on x86_64-redhat-linux.
gcc/ChangeLog:
PR rtl-optimization/100328
* config/i386/i386-options.c (ix86_option_override_internal):
Set param_ira_consider_dup_in_all_alts to 0.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386-options.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/config/i386/i386-options.c b/gcc/config/i386/i386-options.c index 0eccb54..7a35c46 100644 --- a/gcc/config/i386/i386-options.c +++ b/gcc/config/i386/i386-options.c @@ -2831,6 +2831,8 @@ ix86_option_override_internal (bool main_args_p, if (ix86_indirect_branch != indirect_branch_keep) SET_OPTION_IF_UNSET (opts, opts_set, flag_jump_tables, 0); + SET_OPTION_IF_UNSET (opts, opts_set, param_ira_consider_dup_in_all_alts, 0); + return true; } |