From: Chris Lattner <sabre@nondot.org>
Date: Tue, 24 Aug 2004 17:48:29 +0000 (+0000)
Subject: Fix a bug in a previous checkin of mine, correcting
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d0d0a1a08f9e27f4c950e846e0a21c3c3f11e40c;p=oota-llvm.git

Fix a bug in a previous checkin of mine, correcting
 Regression.CodeGen.Generic.2004-04-09-SameValueCoalescing.llx and the
code size problem.

This bug prevented us from doing most register coallesces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16031 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 649068883b8..6cf95d20903 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -661,7 +661,7 @@ bool LiveIntervals::differingRegisterClasses(unsigned RegA,
   if (MRegisterInfo::isVirtualRegister(RegB))
     return RegClass != mf_->getSSARegMap()->getRegClass(RegB);
   else
-    return RegClass->contains(RegB);
+    return !RegClass->contains(RegB);
 }
 
 bool LiveIntervals::overlapsAliases(const LiveInterval *LHS,