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Diffstat (limited to 'gcc/config/ia64/ia64.c')
| -rw-r--r-- | gcc/config/ia64/ia64.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index 75c8f0ee6c4..23fc7540ec0 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -5496,6 +5496,14 @@ ia64_override_options (void) if (TARGET_AUTO_PIC) target_flags |= MASK_CONST_GP; + /* Numerous experiment shows that IRA based loop pressure + calculation works better for RTL loop invariant motion on targets + with enough (>= 32) registers. It is an expensive optimization. + So it is on only for peak performance. */ + if (optimize >= 3) + flag_ira_loop_pressure = 1; + + ia64_flag_schedule_insns2 = flag_schedule_insns_after_reload; flag_schedule_insns_after_reload = 0; |