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Make sure all eliminated kills are removed from VNInfo lists.

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This fixes PR7479 and PR7485. The test cases from those PRs are big, so not
included. However, PR7485 comes from self hosting on FreeBSD, so we will surely
hear about any regression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106811 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-06-24 23:57:35 +00:00
parent 1cf753c87d
commit fa1e73c447
1 changed files with 2 additions and 0 deletions
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lib/CodeGen/LiveInterval.cpp
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@ -484,6 +484,8 @@ void LiveInterval::join(LiveInterval &Other,
I->valno = NewVNInfo[OtherAssignments[RangeNo]];
assert(I->valno && "Adding a dead range?");
InsertPos = addRangeFrom(*I, InsertPos);
InsertPos->valno->removeKills(InsertPos->start,
InsertPos->end.getPrevSlot());
}
ComputeJoinedWeight(Other);