diff options
Diffstat (limited to 'src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp')
| -rw-r--r-- | src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp b/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp index b14a360c3cc..d7b08b0aa77 100644 --- a/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp +++ b/src/gallium/drivers/radeon/AMDILISelDAGToDAG.cpp @@ -69,6 +69,7 @@ private: bool SelectADDR8BitOffset(SDValue Addr, SDValue& Base, SDValue& Offset); bool SelectADDRReg(SDValue Addr, SDValue& Base, SDValue& Offset); + bool SelectADDRVTX_READ(SDValue Addr, SDValue &Base, SDValue &Offset); // Include the pieces autogenerated from the target description. #include "AMDGPUGenDAGISel.inc" @@ -556,6 +557,34 @@ bool AMDILDAGToDAGISel::SelectADDR8BitOffset(SDValue Addr, SDValue& Base, return true; } +bool AMDILDAGToDAGISel::SelectADDRVTX_READ(SDValue Addr, SDValue &Base, + SDValue &Offset) +{ + ConstantSDNode * IMMOffset; + + if (Addr.getOpcode() == ISD::ADD + && (IMMOffset = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) + && isInt<16>(IMMOffset->getZExtValue())) { + + Base = Addr.getOperand(0); + Offset = CurDAG->getTargetConstant(IMMOffset->getZExtValue(), MVT::i32); + return true; + // If the pointer address is constant, we can move it to the offset field. + } else if ((IMMOffset = dyn_cast<ConstantSDNode>(Addr)) + && isInt<16>(IMMOffset->getZExtValue())) { + Base = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), + CurDAG->getEntryNode().getDebugLoc(), + AMDIL::ZERO, MVT::i32); + Offset = CurDAG->getTargetConstant(IMMOffset->getZExtValue(), MVT::i32); + return true; + } + + // Default case, no offset + Base = Addr; + Offset = CurDAG->getTargetConstant(0, MVT::i32); + return true; +} + bool AMDILDAGToDAGISel::SelectADDRReg(SDValue Addr, SDValue& Base, SDValue& Offset) { if (Addr.getOpcode() == ISD::TargetExternalSymbol || |