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[X86][SSE] Add shuffle combine tests showing missed opportunities to use UNPCK
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 14 Feb 2017 15:49:37 +0000 (15:49 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 14 Feb 2017 15:49:37 +0000 (15:49 +0000)
commitfbe71f840423ff0c7e65e6078d783910a76096af
tree621254454434a74884b2aa59fac6565e0fff0841
parent5090868cab70df8a89d037bb730708f0fe6c4cd6
[X86][SSE] Add shuffle combine tests showing missed opportunities to use UNPCK

Not correctly using UNDEF or ZERO inputs to combine to UNPCK shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295059 91177308-0d34-0410-b5e6-96231b3b80d8
test/CodeGen/X86/vector-shuffle-combining-avx2.ll
test/CodeGen/X86/vector-shuffle-combining-ssse3.ll