[PATCH] D15096: [InstCombine] transform more extract/insert pairs into shuffles (PR2109)

[Sanjay Patel via llvm-commits]

spatel added a comment.

> Note 2: The 2x shufflevector mask limitation is not in the IR Language Reference shufflevector instruction definition, but it is encoded in ShuffleVectorInst::isValidOperands().


Disregard that comment. I mistook a bug in an earlier draft of this patch as that limitation. I'll update the patch to remove that check.


http://reviews.llvm.org/D15096