We need to subtract one from this index because live ranges are open at the end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51922 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp
index 449ef38..ab95387 100644
--- a/lib/CodeGen/StrongPHIElimination.cpp
+++ b/lib/CodeGen/StrongPHIElimination.cpp
@@ -467,7 +467,7 @@
} else {
// Otherwise, add it to the renaming set
LiveInterval& I = LI.getOrCreateInterval(SrcReg);
- unsigned idx = LI.getMBBEndIdx(P->getOperand(i).getMBB());
+ unsigned idx = LI.getMBBEndIdx(P->getOperand(i).getMBB()) - 1;
VNInfo* VN = I.getLiveRangeContaining(idx)->valno;
assert(VN && "No VNInfo for register?");