Don't crash on multiple return value with no obvious inserted value.
Fixes PR4314.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73007 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index d73519c..3deee54 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -639,8 +639,8 @@
DenseMap<std::pair<Function*, unsigned>, LatticeVal>::iterator
It = TrackedMultipleRetVals.find(std::make_pair(F, i));
if (It == TrackedMultipleRetVals.end()) break;
- Value *Val = FindInsertedValue(I.getOperand(0), i);
- mergeInValue(It->second, F, getValueState(Val));
+ if (Value *Val = FindInsertedValue(I.getOperand(0), i))
+ mergeInValue(It->second, F, getValueState(Val));
}
}
}