[x86] Start improving the matching of unpck instructions based on test
authorChandler Carruth <chandlerc@gmail.com>
Wed, 12 Nov 2014 10:05:18 +0000 (10:05 +0000)
committerChandler Carruth <chandlerc@gmail.com>
Wed, 12 Nov 2014 10:05:18 +0000 (10:05 +0000)
commit0c922fcec566d74045af5e09becfe1d251e04040
tree3d9aac41b67e014e9a2c5854675bcfefc6bc401e
parent9b70a919dbc5d4bd938103446cc1445ab7da9095
[x86] Start improving the matching of unpck instructions based on test
cases from Halide folks. This initial step was extracted from
a prototype change by Clay Wood to try and address regressions found
with Halide and the new vector shuffle lowering.

llvm-svn: 221779
llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/test/CodeGen/X86/vector-shuffle-128-v8.ll
llvm/test/CodeGen/X86/vector-zext.ll