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| author | Cheng Shao <astrohavoc@gmail.com> | 2022-03-08 09:35:38 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2022-03-11 20:00:01 -0500 |
| commit | 9e67c69e8421f1223a1d14a764740095adeaf89b (patch) | |
| tree | eb30f482bba39b07edba1e5b40f3a569e04fe59e | |
| parent | 6bdcd5573a1fe67dd872c55e5911a1186071c5d3 (diff) | |
| download | haskell-9e67c69e8421f1223a1d14a764740095adeaf89b.tar.gz | |
CmmToC: fix Double# literal payload for 32-bit targets
Contrary to the legacy comment, the splitting didn't happen and we
ended up with a single StgWord64 literal in the output code! Let's
just do the splitting here.
| -rw-r--r-- | compiler/GHC/CmmToC.hs | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/GHC/CmmToC.hs b/compiler/GHC/CmmToC.hs index 30568b0995..9fe20cc098 100644 --- a/compiler/GHC/CmmToC.hs +++ b/compiler/GHC/CmmToC.hs @@ -638,9 +638,8 @@ staticLitsToWords platform = go . foldMap decomposeMultiWord -- single-word (or smaller) literals. decomposeMultiWord :: CmmLit -> [CmmLit] decomposeMultiWord (CmmFloat n W64) - -- This will produce a W64 integer, which will then be broken up further - -- on the next iteration on 32-bit platforms. - = [doubleToWord64 n] + | W32 <- wordWidth platform = decomposeMultiWord (doubleToWord64 n) + | otherwise = [doubleToWord64 n] decomposeMultiWord (CmmFloat n W32) = [floatToWord32 n] decomposeMultiWord (CmmInt n W64) |