Jakob Stoklund Olesen b18d779b35 Eliminate the IS_PHI_DEF flag and VNInfo::setIsPHIDef(). ...

A value number is a PHI def if and only if it begins at a block
boundary. This can be derived from the def slot, a separate flag is not
necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160893 91177308-0d34-0410-b5e6-96231b3b80d8

2012-07-27 21:11:14 +00:00

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