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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 8800bff87f8..e59560ed88b 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -9802,7 +9802,8 @@ SDValue X86TargetLowering::EmitTest(SDValue Op, unsigned X86CC, SDLoc dl,
// If we have a constant logical shift that's only used in a comparison
// against zero turn it into an equivalent AND. This allows turning it into
// a TEST instruction later.
- if (isa<ConstantSDNode>(Op->getOperand(1)) && !hasNonFlagsUse(Op)) {
+ if ((X86CC == X86::COND_E || X86CC == X86::COND_NE) &&
+ isa<ConstantSDNode>(Op->getOperand(1)) && !hasNonFlagsUse(Op)) {
EVT VT = Op.getValueType();
unsigned BitWidth = VT.getSizeInBits();
unsigned ShAmt = Op->getConstantOperandVal(1);
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