]> granicus.if.org Git - llvm/commit
[CostModel][X86][XOP] Improve costs for XOP shuffles
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Wed, 16 Aug 2017 13:50:20 +0000 (13:50 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Wed, 16 Aug 2017 13:50:20 +0000 (13:50 +0000)
commitb148872e50ccc7f43a885e5f28492f99d8224705
tree4f5387f46282e3b998a0af627dfcbc896d7f9bd0
parent9c770381b997d4df0cb730b837a8277816d60fba
[CostModel][X86][XOP] Improve costs for XOP shuffles

VPPERM/VPERMIL2PD/VPERMIL2PS all provide more effective 2-input shuffles than regular AVX instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311005 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86TargetTransformInfo.cpp
test/Analysis/CostModel/X86/shuffle-single-src.ll
test/Analysis/CostModel/X86/shuffle-two-src.ll