Jakob Stoklund Olesen ad6b22eb16 Don't store COPY pointers in VNInfo. ...

If a value is defined by a COPY, that instuction can easily and cheaply
be found by getInstructionFromIndex(VNI->def).

This reduces the size of VNInfo from 24 to 16 bytes, and improves
llc compile time by 3%.

llvm-svn: 149763

2012-02-04 05:20:49 +00:00

50 KiB

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