From: Evan Cheng <evan.cheng@apple.com>
Date: Tue, 3 Apr 2007 06:43:29 +0000 (+0000)
Subject: Bad bad bug. findRegisterUseOperand() returns -1 if a use if not found.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=595b6d121cbbae3f58e508ae928b4ed917e686b6;p=oota-llvm.git

Bad bad bug. findRegisterUseOperand() returns -1 if a use if not found.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35618 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp
index 06368639b8c..13a36199195 100644
--- a/lib/CodeGen/RegisterScavenging.cpp
+++ b/lib/CodeGen/RegisterScavenging.cpp
@@ -235,7 +235,7 @@ static unsigned calcDistanceToUse(MachineBasicBlock *MBB,
   I = next(I);
   while (I != MBB->end()) {
     Dist++;
-    if (I->findRegisterUseOperand(Reg))
+    if (I->findRegisterUseOperand(Reg) != -1)
         return Dist;
     I = next(I);    
   }