Simon Pilgrim cbc2ca5ec9 [X86][SSE] Generalised unpckl/unpckh shuffle matching
Added commuted unpckl/unpckh shuffle matching patterns as many cases containing undefined lanes fail to commute by themselves.

Differential Revision: http://reviews.llvm.org/D7564

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229571 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-17 22:24:32 +00:00
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