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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-22 13:13:57 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-22 13:13:57 +0000 |
| commit | 2c69f9017170fa071cc31a113609cf9339cfcb0d (patch) | |
| tree | 706d857dcfb1579490da2bc99e7965ace8c0accf /llvm/lib/Target/X86 | |
| parent | 73eb326203616bc6f137e164e8a53cb5440ce203 (diff) | |
| download | bcm5719-llvm-2c69f9017170fa071cc31a113609cf9339cfcb0d.tar.gz bcm5719-llvm-2c69f9017170fa071cc31a113609cf9339cfcb0d.zip | |
[X86][BtVer2] X86ISD::VPERMILPV has local forwarding disabled
Similar to horizontal ops on D56777, the vpermilpd/vpermilps variable mask ops has local forwarding disabled, adding +1cy to the use latency for the result.
Differential Revision: https://reviews.llvm.org/D57022
llvm-svn: 351815
Diffstat (limited to 'llvm/lib/Target/X86')
| -rw-r--r-- | llvm/lib/Target/X86/X86ScheduleBtVer2.td | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ScheduleBtVer2.td b/llvm/lib/Target/X86/X86ScheduleBtVer2.td index e81f8445b3e..cc997522db9 100644 --- a/llvm/lib/Target/X86/X86ScheduleBtVer2.td +++ b/llvm/lib/Target/X86/X86ScheduleBtVer2.td @@ -400,8 +400,8 @@ defm : X86WriteResPairUnsupported<WriteFTestZ>; defm : JWriteResFpuPair<WriteFShuffle, [JFPU01, JFPX], 1>; defm : JWriteResYMMPair<WriteFShuffleY, [JFPU01, JFPX], 1, [2, 2], 2>; defm : X86WriteResPairUnsupported<WriteFShuffleZ>; -defm : JWriteResFpuPair<WriteFVarShuffle, [JFPU01, JFPX], 2, [1, 4], 3>; -defm : JWriteResYMMPair<WriteFVarShuffleY,[JFPU01, JFPX], 3, [2, 6], 6>; +defm : JWriteResFpuPair<WriteFVarShuffle, [JFPU01, JFPX], 3, [1, 4], 3>; // +1cy latency. +defm : JWriteResYMMPair<WriteFVarShuffleY,[JFPU01, JFPX], 4, [2, 6], 6>; // +1cy latency. defm : X86WriteResPairUnsupported<WriteFVarShuffleZ>; defm : JWriteResFpuPair<WriteFBlend, [JFPU01, JFPX], 1>; defm : JWriteResYMMPair<WriteFBlendY, [JFPU01, JFPX], 1, [2, 2], 2>; |
