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| author | Sylvain Henry <sylvain@haskus.fr> | 2022-10-19 11:46:46 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2022-10-25 18:08:24 -0400 |
| commit | 0988a23d21110f4351eb9879dcab1b035d4e92c6 (patch) | |
| tree | 714bac942bd544fba5178df088de5d5eb1db3d4f | |
| parent | 7f203d00edd639d24af2cf5970e771207adc2bc6 (diff) | |
| download | haskell-0988a23d21110f4351eb9879dcab1b035d4e92c6.tar.gz | |
Enable popcount rewrite rule when cross-compiling
The comment applies only when host's word size < target's word size.
So we can relax the guard.
| -rw-r--r-- | compiler/GHC/Core/Opt/ConstantFold.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Core/Opt/ConstantFold.hs b/compiler/GHC/Core/Opt/ConstantFold.hs index 8a22124779..dbbb36b8e6 100644 --- a/compiler/GHC/Core/Opt/ConstantFold.hs +++ b/compiler/GHC/Core/Opt/ConstantFold.hs @@ -2244,7 +2244,7 @@ builtinBignumRules = -- We use a host Int to compute the popCount. If we compile on a 32-bit -- host for a 64-bit target, the result may be different than if computed -- by the target. So we disable this rule if sizes don't match. - guard (platformWordSizeInBits platform == finiteBitSize (0 :: Word)) + guard (platformWordSizeInBits platform <= finiteBitSize (0 :: Word)) [a0] <- getArgs x <- isBignumLiteral a0 pure $ Lit (mk_lit platform (fromIntegral (popCount x))) |