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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-06-12 16:53:51 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-06-12 16:53:51 +0000 |
| commit | db7c6a873199958392aec5e963b3a4e6454f6c84 (patch) | |
| tree | d8f370bebe8c2a1e6457572baf5ac2070acbc4e2 /llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp | |
| parent | 89ad17ce4c34f43205dc49dd86631eb9f6bb9626 (diff) | |
| download | bcm5719-llvm-db7c6a873199958392aec5e963b3a4e6454f6c84.tar.gz bcm5719-llvm-db7c6a873199958392aec5e963b3a4e6454f6c84.zip | |
AMDGPU: Start selecting flat instruction offsets
llvm-svn: 305201
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp index fea518d1871..f235313e485 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp @@ -138,8 +138,10 @@ private: bool SelectMUBUFIntrinsicVOffset(SDValue Offset, SDValue &SOffset, SDValue &ImmOffset, SDValue &VOffset) const; - bool SelectFlat(SDValue Addr, SDValue &VAddr, - SDValue &Offset, SDValue &SLC) const; + bool SelectFlatAtomic(SDValue Addr, SDValue &VAddr, + SDValue &Offset, SDValue &SLC) const; + bool SelectFlatOffset(SDValue Addr, SDValue &VAddr, + SDValue &Offset, SDValue &SLC) const; bool SelectSMRDOffset(SDValue ByteOffsetNode, SDValue &Offset, bool &Imm) const; @@ -1314,16 +1316,37 @@ bool AMDGPUDAGToDAGISel::SelectMUBUFIntrinsicVOffset(SDValue Offset, return true; } -bool AMDGPUDAGToDAGISel::SelectFlat(SDValue Addr, - SDValue &VAddr, - SDValue &Offset, - SDValue &SLC) const { +bool AMDGPUDAGToDAGISel::SelectFlatOffset(SDValue Addr, + SDValue &VAddr, + SDValue &Offset, + SDValue &SLC) const { + int64_t OffsetVal = 0; + + if (Subtarget->hasFlatInstOffsets() && + CurDAG->isBaseWithConstantOffset(Addr)) { + SDValue N0 = Addr.getOperand(0); + SDValue N1 = Addr.getOperand(1); + uint64_t COffsetVal = cast<ConstantSDNode>(N1)->getZExtValue(); + if (isUInt<12>(COffsetVal)) { + Addr = N0; + OffsetVal = COffsetVal; + } + } + VAddr = Addr; - Offset = CurDAG->getTargetConstant(0, SDLoc(), MVT::i16); + Offset = CurDAG->getTargetConstant(OffsetVal, SDLoc(), MVT::i16); SLC = CurDAG->getTargetConstant(0, SDLoc(), MVT::i1); + return true; } +bool AMDGPUDAGToDAGISel::SelectFlatAtomic(SDValue Addr, + SDValue &VAddr, + SDValue &Offset, + SDValue &SLC) const { + return SelectFlatOffset(Addr, VAddr, Offset, SLC); +} + bool AMDGPUDAGToDAGISel::SelectSMRDOffset(SDValue ByteOffsetNode, SDValue &Offset, bool &Imm) const { |
