Benjamin Kramer 4968944376 [Reassociate] Similar to "X + -X" -> "0", added code to handle "X + ~X" -> "-1". ...

Handle "X + ~X" -> "-1" in the function Value *Reassociate::OptimizeAdd(Instruction *I, SmallVectorImpl<ValueEntry> &Ops);
This patch implements:
TODO: We could handle "X + ~X" -> "-1" if we wanted, since "-X = ~X+1".

Patch by Rahul Jain!

Differential Revision: http://reviews.llvm.org/D3835

llvm-svn: 209973

2014-05-31 15:01:54 +00:00

76 KiB

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