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Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp')
-rw-r--r--llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp b/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
index e844904..0f97988 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
@@ -1523,7 +1523,8 @@ Value *AMDGPUCodeGenPrepareImpl::shrinkDivRem64(IRBuilder<> &Builder,
bool IsDiv = Opc == Instruction::SDiv || Opc == Instruction::UDiv;
bool IsSigned = Opc == Instruction::SDiv || Opc == Instruction::SRem;
- int NumDivBits = getDivNumBits(I, Num, Den, 32, IsSigned);
+ unsigned BitWidth = Num->getType()->getScalarSizeInBits();
+ int NumDivBits = getDivNumBits(I, Num, Den, BitWidth - 32, IsSigned);
if (NumDivBits == -1)
return nullptr;