From 02659d23637f69f90640bfa3e66919517103c57a Mon Sep 17 00:00:00 2001 From: Jim Laskey Date: Wed, 17 Aug 2005 17:42:52 +0000 Subject: [PATCH] Switched to using BitsToDouble for int_to_float to avoid aliasing problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22831 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index ccef33eb891..ab070301b08 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -15,6 +15,7 @@ #include "llvm/CodeGen/MachineConstantPool.h" #include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineFrameInfo.h" +#include "llvm/Support/MathExtras.h" #include "llvm/Target/TargetLowering.h" #include "llvm/Target/TargetData.h" #include "llvm/Target/TargetOptions.h" @@ -204,10 +205,9 @@ SDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, DAG.getSrcValue(NULL)); // FP constant to bias correct the final result - uint64_t SignedBias = 0x4330000080000000ULL; - uint64_t UnsignedBias = 0x4330000000000000ULL; - SDOperand Bias = DAG.getConstantFP(isSigned ? *(double *)&SignedBias - : *(double *)&UnsignedBias, + SDOperand Bias = DAG.getConstantFP(isSigned ? + BitsToDouble(0x4330000080000000ULL) + : BitsToDouble(0x4330000000000000ULL), MVT::f64); // subtract the bias SDOperand Sub = DAG.getNode(ISD::SUB, MVT::f64, Load, Bias); -- 2.34.1