diff options
| author | Craig Topper <craig.topper@intel.com> | 2019-10-13 05:47:47 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2019-10-13 05:47:47 +0000 |
| commit | bf57aa2b25c54a30246cd87addfdb90529908fd3 (patch) | |
| tree | 93fd643347b7c5b0f4ae1732a79597a1b30e6666 /llvm/lib/Target | |
| parent | 8fe8adb9f192c84513c06ddabd3c7f013b21aabe (diff) | |
| download | bcm5719-llvm-bf57aa2b25c54a30246cd87addfdb90529908fd3.tar.gz bcm5719-llvm-bf57aa2b25c54a30246cd87addfdb90529908fd3.zip | |
[X86] Enable v4i32->v4i16 and v8i16->v8i8 saturating truncates to use pack instructions with avx512.
llvm-svn: 374705
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index c7d90ddfc9a..8d538198aef 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -39871,6 +39871,7 @@ static SDValue combineTruncateWithSat(SDValue In, EVT VT, const SDLoc &DL, // registers, we should go ahead and use the pack instructions if possible. bool PreferAVX512 = ((Subtarget.hasAVX512() && InSVT == MVT::i32) || (Subtarget.hasBWI() && InSVT == MVT::i16)) && + (InVT.getSizeInBits() > 128) && (Subtarget.hasVLX() || InVT.getSizeInBits() > 256) && !(!Subtarget.useAVX512Regs() && VT.getSizeInBits() >= 256); |
