diff options
| author | Justin Holewinski <jholewinski@nvidia.com> | 2013-07-01 12:58:56 +0000 |
|---|---|---|
| committer | Justin Holewinski <jholewinski@nvidia.com> | 2013-07-01 12:58:56 +0000 |
| commit | 8834184a463514530728a8032df165558393cd9c (patch) | |
| tree | c5e13a331e49e10d07ce92eb1386dbb8849657f6 /lib/Target/NVPTX/NVPTXISelLowering.cpp | |
| parent | 9bc8feeb4fd15883949900194c93fd1704c404b4 (diff) | |
| download | llvm-8834184a463514530728a8032df165558393cd9c.tar.gz llvm-8834184a463514530728a8032df165558393cd9c.tar.bz2 llvm-8834184a463514530728a8032df165558393cd9c.tar.xz | |
[NVPTX] Add support for native SIGN_EXTEND_INREG where available
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185330 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/NVPTX/NVPTXISelLowering.cpp')
| -rw-r--r-- | lib/Target/NVPTX/NVPTXISelLowering.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/Target/NVPTX/NVPTXISelLowering.cpp b/lib/Target/NVPTX/NVPTXISelLowering.cpp index b9d8d8f48c..725bc9e7d0 100644 --- a/lib/Target/NVPTX/NVPTXISelLowering.cpp +++ b/lib/Target/NVPTX/NVPTXISelLowering.cpp @@ -138,10 +138,12 @@ NVPTXTargetLowering::NVPTXTargetLowering(NVPTXTargetMachine &TM) setOperationAction(ISD::BR_CC, MVT::i16, Expand); setOperationAction(ISD::BR_CC, MVT::i32, Expand); setOperationAction(ISD::BR_CC, MVT::i64, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i64, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i32, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand); - setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8, Expand); + // Some SIGN_EXTEND_INREG can be done using cvt instruction. + // For others we will expand to a SHL/SRA pair. + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i64, Legal); + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i32, Legal); + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Legal); + setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8 , Legal); setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand); if (nvptxSubtarget.hasROT64()) { |