[PATCH] D37653: [X86] Add isel pattern infrastructure to begin recognizing when we're inserting 0s into the upper portions of a vector register and the producing instruction as already produced the zeros.

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Sep 14 14:41:19 PDT 2017


craig.topper added a comment.

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