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S/390: Perform more aggressive inlining

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This patch sets the inlining parameters for z13 and later to rather
aggressive values in response to PR85103 that caused performance
regressions in SPEC2006's sjeng and gobmk benchmarks.

From-SVN: r269623
This commit is contained in:
Robin Dapp 2019-03-12 17:12:56 +00:00 • committed by Robin Dapp
parent ff99338ce3
commit 6684d2dbff
2 changed files with 17 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2019-03-12 Robin Dapp <rdapp@linux.ibm.com>
* config/s390/s390.c (s390_option_override_internal): Use more
aggressive inlining parameters.
2019-03-12 Robin Dapp <rdapp@linux.ibm.com>
* config/s390/3906.md: New file.

12
gcc/config/s390/s390.c
View file

@ -15072,6 +15072,18 @@ s390_option_override_internal (struct gcc_options *opts,
opts->x_param_values,
opts_set->x_param_values);
/* Use aggressive inlining parameters. */
if (opts->x_s390_tune >= PROCESSOR_2964_Z13)
{
maybe_set_param_value (PARAM_INLINE_MIN_SPEEDUP, 2,
opts->x_param_values,
opts_set->x_param_values);
maybe_set_param_value (PARAM_MAX_INLINE_INSNS_AUTO, 80,
opts->x_param_values,
opts_set->x_param_values);
}
/* Set the default alignment. */
s390_default_align (opts);