diff options
| -rw-r--r-- | lib/AsmParser/Lexer.l | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/lib/AsmParser/Lexer.l b/lib/AsmParser/Lexer.l index 92d4f3424f..85852e2851 100644 --- a/lib/AsmParser/Lexer.l +++ b/lib/AsmParser/Lexer.l @@ -73,15 +73,17 @@ static uint64_t HexIntToVal(const char *Buffer) { // point representation of it. // static double HexToFP(const char *Buffer) { - uint64_t Result = HexIntToVal(Buffer); - - assert(sizeof(double) == sizeof(Result) && - "Data sizes incompatible on this target!"); // Behave nicely in the face of C TBAA rules... see: // http://www.nullstone.com/htmls/category/aliastyp.htm - // - char *ProxyPointer = (char*)&Result; - return *(double*)ProxyPointer; // Cast Hex constant to double + union { + uint64_t UI; + double FP; + } UIntToFP; + UIntToFP.UI = HexIntToVal(Buffer); + + assert(sizeof(double) == sizeof(uint64_t) && + "Data sizes incompatible on this target!"); + return UIntToFP.FP; // Cast Hex constant to double } |