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-rw-r--r--llvm/lib/CodeGen/CodeGenPrepare.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index f9dcb47..2c53a9c 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -8591,6 +8591,9 @@ static bool optimizeBranch(BranchInst *Branch, const TargetLowering &TLI,
return false;
Value *X = Cmp->getOperand(0);
+ if (!X->hasUseList())
+ return false;
+
APInt CmpC = cast<ConstantInt>(Cmp->getOperand(1))->getValue();
for (auto *U : X->users()) {