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Do not try to optimize a copy that has already been marked for deletion.
authorEvan Cheng <evan.cheng@apple.com>
Wed, 21 Apr 2010 20:57:54 +0000 (20:57 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Wed, 21 Apr 2010 20:57:54 +0000 (20:57 +0000)
commite3dd8550c6c65d02b067ec96ac12a560dabd4452
tree7bb16bfe2aeabb359aa753205572c7f05710805e
parent708e474c2ff2922786a9ea6562772d2f271dec28
Do not try to optimize a copy that has already been marked for deletion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102027 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/SimpleRegisterCoalescing.cpp
test/CodeGen/X86/2010-04-21-CoalescerBug.ll [new file with mode: 0644]