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

llvm-svn: 126277
2011-02-23 00:29:55 +00:00 · 2011-02-23 00:29:55 +00:00 · 37de3235e5
parent 6bd68cdffb
commit 37de3235e5
1 changed files with 1 additions and 2 deletions
--- a/llvm/lib/CodeGen/RegAllocGreedy.cpp
+++ b/llvm/lib/CodeGen/RegAllocGreedy.cpp
@ -240,8 +240,7 @@ LiveInterval *RAGreedy::getSingleInterference(LiveInterval &VirtReg,
    if (Q.checkInterference()) {
      if (Interference)
        return 0;
-      Q.collectInterferingVRegs(1);
-      if (!Q.seenAllInterferences())
+      if (Q.collectInterferingVRegs(2) > 1)
        return 0;
      Interference = Q.interferingVRegs().front();
    }