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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126277 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-02-23 00:29:55 +00:00
parent 98c8141b6d
commit 417df01291
1 changed files with 1 additions and 2 deletions
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3
lib/CodeGen/RegAllocGreedy.cpp
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@ -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();
}