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 649068883b8cfd16c5751bea380c16f7869c5190..6cf95d20903eeb2eabd0cb7d8bb75f077ac40af3 100644 (file)
--- 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,