commit 417df0129146e299e9fd273becab824887c384e9
author Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Feb 23 00:29:55 2011 +0000
committer Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Feb 23 00:29:55 2011 +0000
tree 5788d6ee0cf2bed5831f8eb84e673aad98bc07c8
parent 98c8141b6d8fcbb9bd258ebcdd4171f55c5a8e9d

Fix a bug in determining if there is only a single interfering register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126277 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/RegAllocGreedy.cpp

diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index 0146a27..59d4fc6 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -240,8 +240,7 @@
     if (Q.checkInterference()) {
       if (Interference)
         return 0;
-      Q.collectInterferingVRegs(1);
-      if (!Q.seenAllInterferences())
+      if (Q.collectInterferingVRegs(2) > 1)
         return 0;
       Interference = Q.interferingVRegs().front();
     }