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[X86][AVX1] Improve 256-bit vector costs for integer unary intrinsics.
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 7 May 2017 20:58:55 +0000 (20:58 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 7 May 2017 20:58:55 +0000 (20:58 +0000)
commit8d84aa2ccea9f910453f7796b856e33bf4623c1b
tree2e06585e59c8540b704739adaa11601eac123deetree | snapshot
parent33aa99e46af9c22e55a99e4d8352939bd01cf8facommit | diff
[X86][AVX1] Improve 256-bit vector costs for integer unary intrinsics.

Account for subvector extraction/insertion, helps prevent the vectorizers from selecting 256-bit vectors that will have to be split anyhow on AVX1 targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302378 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86TargetTransformInfo.cpp diff | blob | history
test/Analysis/CostModel/X86/bitreverse.ll diff | blob | history
test/Analysis/CostModel/X86/ctbits-cost.ll diff | blob | history
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