diff options
Diffstat (limited to 'src/jit/varset.h')
| -rw-r--r-- | src/jit/varset.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/jit/varset.h b/src/jit/varset.h index be581c9596..1aa30fcc2e 100644 --- a/src/jit/varset.h +++ b/src/jit/varset.h @@ -70,8 +70,18 @@ typedef BitSetOps</*BitSetType*/BitSetShortLongRep, typedef BitSetShortLongRep VARSET_TP; -// For the unbounded-width varset implementation, test it a little by allowing the max tracked vars to be than UINT64 can hold. +// Tested various sizes for max tracked locals. The largest value for which no throughput regression +// could be measured was 512. Going to 1024 showed the first throughput regressions. +// We anticipate the larger size will be needed to support better inlining. +// There were a number of failures when 512 was used for legacy, so we just retain the 128 value +// for legacy backend. + +#if !defined(LEGACY_BACKEND) +const unsigned lclMAX_TRACKED = 512; +#else const unsigned lclMAX_TRACKED = 128; +#endif + #define VARSET_REP_IS_CLASS 0 @@ -138,8 +148,7 @@ typedef BitSetOps</*BitSetType*/BitSetShortLongRep, typedef BitSetShortLongRep ALLVARSET_TP; -// For the unbounded-width varset implementation, test them a little by allowing the max tracked vars to be than UINT64 can hold. -const unsigned lclMAX_ALLSET_TRACKED = 128; +const unsigned lclMAX_ALLSET_TRACKED = lclMAX_TRACKED; #define ALLVARSET_REP_IS_CLASS 0 |