Fix an iterator invalidation bug that happens when a hashtable
resizes in IPSCCP. This fixes PR5394.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86036 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index 05a0eee..d515c13 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -1280,9 +1280,10 @@
}
if (const StructType *STy = dyn_cast<StructType>(AI->getType())) {
- for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i)
- mergeInValue(getStructValueState(AI, i), AI,
- getStructValueState(*CAI, i));
+ for (unsigned i = 0, e = STy->getNumElements(); i != e; ++i) {
+ LatticeVal CallArg = getStructValueState(*CAI, i);
+ mergeInValue(getStructValueState(AI, i), AI, CallArg);
+ }
} else {
mergeInValue(AI, getValueState(*CAI));
}