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[X86][AVX512BW] AVX512BW can sign-extend v32i8 to v32i16 for simpler v32i8 multiplies.
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 26 Mar 2016 09:44:27 +0000 (09:44 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 26 Mar 2016 09:44:27 +0000 (09:44 +0000)
commit7379a70677180605fce5e34ea007c3edb5345537
tree7a96798b3c420f4a15881f049187a4f91426f895tree | snapshot
parentb549ab02b4659c2e6164cb1a39ef798b80d643dfcommit | diff
[X86][AVX512BW] AVX512BW can sign-extend v32i8 to v32i16 for simpler v32i8 multiplies.

Only pre-AVX512BW targets need to split v32i8 vectors.

llvm-svn: 264509
llvm/lib/Target/X86/X86ISelLowering.cpp diff | blob | history
llvm/test/CodeGen/X86/pmul.ll diff | blob | history
Domain: System / Toolchain;