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https://github.com/c64scene-ar/llvm-6502.git
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8af78c9cf8
- Emit mad instead of mad.rn for shader model 1.0 - Emit explicit mov.u32 instructions for reading global variables - (most PTX instructions cannot take global variable immediates) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127895 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
//==-- PTXISelLowering.h - PTX DAG Lowering Interface ------------*- C++ -*-==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the interfaces that PTX uses to lower LLVM code into a
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// selection DAG.
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//
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//===----------------------------------------------------------------------===//
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#ifndef PTX_ISEL_LOWERING_H
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#define PTX_ISEL_LOWERING_H
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#include "llvm/Target/TargetLowering.h"
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namespace llvm {
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class PTXSubtarget;
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class PTXTargetMachine;
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namespace PTXISD {
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enum NodeType {
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FIRST_NUMBER = ISD::BUILTIN_OP_END,
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READ_PARAM,
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EXIT,
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RET,
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COPY_ADDRESS
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};
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} // namespace PTXISD
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class PTXTargetLowering : public TargetLowering {
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public:
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explicit PTXTargetLowering(TargetMachine &TM);
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virtual const char *getTargetNodeName(unsigned Opcode) const;
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virtual unsigned getFunctionAlignment(const Function *F) const {
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return 2; }
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virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
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virtual SDValue
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LowerFormalArguments(SDValue Chain,
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CallingConv::ID CallConv,
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bool isVarArg,
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const SmallVectorImpl<ISD::InputArg> &Ins,
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DebugLoc dl,
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SelectionDAG &DAG,
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SmallVectorImpl<SDValue> &InVals) const;
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virtual SDValue
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LowerReturn(SDValue Chain,
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CallingConv::ID CallConv,
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bool isVarArg,
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const SmallVectorImpl<ISD::OutputArg> &Outs,
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const SmallVectorImpl<SDValue> &OutVals,
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DebugLoc dl,
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SelectionDAG &DAG) const;
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private:
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SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
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}; // class PTXTargetLowering
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} // namespace llvm
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#endif // PTX_ISEL_LOWERING_H
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