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| author | David Terei <davidterei@gmail.com> | 2010-06-21 12:36:06 +0000 |
|---|---|---|
| committer | David Terei <davidterei@gmail.com> | 2010-06-21 12:36:06 +0000 |
| commit | 4bb4a1cfa8b88fefae3405d101dc6ff0f7adbae3 (patch) | |
| tree | 4ad26b3f9267b4a68ffe47e30c5da9981a572820 /compiler/llvmGen/Llvm | |
| parent | f9686dd4f9ff6cee56659319941e136a30fa659d (diff) | |
| download | haskell-4bb4a1cfa8b88fefae3405d101dc6ff0f7adbae3.tar.gz | |
Fix negate op not working for -0 in llvm backend
Diffstat (limited to 'compiler/llvmGen/Llvm')
| -rw-r--r-- | compiler/llvmGen/Llvm/Types.hs | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/compiler/llvmGen/Llvm/Types.hs b/compiler/llvmGen/Llvm/Types.hs index 9275c07556..a0b003298c 100644 --- a/compiler/llvmGen/Llvm/Types.hs +++ b/compiler/llvmGen/Llvm/Types.hs @@ -95,7 +95,7 @@ data LlvmLit -- | Refers to an integer constant (i64 42). = LMIntLit Integer LlvmType -- | Floating point literal - | LMFloatLit Rational LlvmType + | LMFloatLit Double LlvmType deriving (Eq) instance Show LlvmLit where @@ -191,12 +191,8 @@ getPlainName (LMLitVar x ) = getLit x -- | Print a literal value. No type. getLit :: LlvmLit -> String -getLit (LMIntLit i _) = show ((fromInteger i)::Int) --- In Llvm float literals can be printed in a big-endian hexadecimal format, --- regardless of underlying architecture. -getLit (LMFloatLit r LMFloat) = fToStr $ fromRational r -getLit (LMFloatLit r LMDouble) = dToStr $ fromRational r -getLit l = error $ "getLit: Usupported LlvmLit type! " ++ show (getLitType l) +getLit (LMIntLit i _) = show ((fromInteger i)::Int) +getLit (LMFloatLit r _) = dToStr r -- | Return the 'LlvmType' of the 'LlvmVar' getVarType :: LlvmVar -> LlvmType @@ -695,11 +691,9 @@ instance Show LlvmCastOp where -- * Floating point conversion -- --- | Convert a Haskell Float to an LLVM hex encoded floating point form -fToStr :: Float -> String -fToStr f = dToStr $ realToFrac f - --- | Convert a Haskell Double to an LLVM hex encoded floating point form +-- | Convert a Haskell Double to an LLVM hex encoded floating point form. In +-- Llvm float literals can be printed in a big-endian hexadecimal format, +-- regardless of underlying architecture. dToStr :: Double -> String dToStr d = let bs = doubleToBytes d @@ -712,9 +706,7 @@ dToStr d str = map toUpper $ concat . fixEndian . (map hex) $ bs in "0x" ++ str --- | Reverse or leave byte data alone to fix endianness on this --- target. LLVM generally wants things in Big-Endian form --- regardless of target architecture. +-- | Reverse or leave byte data alone to fix endianness on this target. fixEndian :: [a] -> [a] #ifdef WORDS_BIGENDIAN fixEndian = id |