From f3329c419b1010089e8aaf3d43b811ba12d94c8a Mon Sep 17 00:00:00 2001
From: Andrew Trick <atrick@apple.com>
Date: Wed, 5 Dec 2012 21:37:50 +0000
Subject: RegisterPressureTracker: fix findUseBetween to handle DebugValue

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169427 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/RegisterPressure.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lib')

diff --git a/lib/CodeGen/RegisterPressure.cpp b/lib/CodeGen/RegisterPressure.cpp
index 1576b2abbe..c7859b9395 100644
--- a/lib/CodeGen/RegisterPressure.cpp
+++ b/lib/CodeGen/RegisterPressure.cpp
@@ -680,6 +680,8 @@ static bool findUseBetween(unsigned Reg,
          UI = MRI->use_nodbg_begin(Reg), UE = MRI->use_nodbg_end();
          UI != UE; UI.skipInstruction()) {
       const MachineInstr* MI = &*UI;
+      if (MI->isDebugValue())
+        continue;
       SlotIndex InstSlot = LIS->getInstructionIndex(MI).getRegSlot();
       if (InstSlot >= PriorUseIdx && InstSlot < NextUseIdx)
         return true;
-- 
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