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-rw-r--r--lib/VMCore/Verifier.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/VMCore/Verifier.cpp b/lib/VMCore/Verifier.cpp
index 18de67155f..e504016169 100644
--- a/lib/VMCore/Verifier.cpp
+++ b/lib/VMCore/Verifier.cpp
@@ -1139,6 +1139,9 @@ void Verifier::visitPHINode(PHINode &PN) {
for (unsigned i = 0, e = PN.getNumIncomingValues(); i != e; ++i) {
Assert1(PN.getType() == PN.getIncomingValue(i)->getType(),
"PHI node operands are not the same type as the result!", &PN);
+ Assert1(isa<BasicBlock>(PN.getOperand(
+ PHINode::getOperandNumForIncomingBlock(i))),
+ "PHI node incoming block is not a BasicBlock!", &PN);
}
// All other PHI node constraints are checked in the visitBasicBlock method.