From edad5bcb76bf472a1487c0f3dd94a5914213a647 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sat, 2 Dec 2017 12:46:23 +0000
Subject: Vendor import of llvm release_50 branch r319231:
 https://llvm.org/svn/llvm-project/llvm/branches/release_50@319231

---
 lib/CodeGen/MachineVerifier.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib/CodeGen/MachineVerifier.cpp')

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);
         }
-- 
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