Files
llvm/test/CodeGen/ARM
Eli Friedman 1e77c707b7 [ARM] Implement isExtractSubvectorCheap.
See https://reviews.llvm.org/D6678 for the history of
isExtractSubvectorCheap. Essentially the same considerations apply
to ARM.

This temporarily breaks the formation of vpadd/vpaddl in certain cases;
AddCombineToVPADDL essentially assumes that we won't form VUZP shuffles.
See https://reviews.llvm.org/D27779 for followup fix.

Differential Revision: https://reviews.llvm.org/D27774



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290198 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-20 20:05:07 +00:00
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