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-rw-r--r--lib/CodeGen/MachineVerifier.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineVerifier.cpp b/lib/CodeGen/MachineVerifier.cpp
index fcb544806dda..c50a95a06505 100644
--- a/lib/CodeGen/MachineVerifier.cpp
+++ b/lib/CodeGen/MachineVerifier.cpp
@@ -1316,6 +1316,8 @@ void MachineVerifier::checkLiveness(const MachineOperand *MO, unsigned MONum) {
// Check the cached regunit intervals.
if (TargetRegisterInfo::isPhysicalRegister(Reg) && !isReserved(Reg)) {
for (MCRegUnitIterator Units(Reg, TRI); Units.isValid(); ++Units) {
+ if (MRI->isReservedRegUnit(*Units))
+ continue;
if (const LiveRange *LR = LiveInts->getCachedRegUnit(*Units))
checkLivenessAtUse(MO, MONum, UseIdx, *LR, *Units);
}