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0fd109963a
update them. Computing kill flags is notoriously difficult, and the coalescer would get it wrong sometimes, and it would completely skip physical registers. Now we simply remove kill flags based on the live intervals after coalescing. This is a few percent slower, but now we get correct kill flags for physical registers after coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102510 91177308-0d34-0410-b5e6-96231b3b80d8
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