If an interval is being undone clear its preference as well since the source interval...
authorEvan Cheng <evan.cheng@apple.com>
Sun, 4 Nov 2007 08:32:21 +0000 (08:32 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Sun, 4 Nov 2007 08:32:21 +0000 (08:32 +0000)
commit9aeaf7593bb3c124aa8a5aa9623efcf3db3b0534
tree179d7756302812b510015cd7b5ff65b29aee8b24
parent03e6c7091e1b6f37d6ba55ad3ee1c2cba10ec8e4
If an interval is being undone clear its preference as well since the source interval may have been undone as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43670 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/RegAllocLinearScan.cpp