mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-20 10:30:03 +00:00
80d8a93489
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19634 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
//===-- llvm/CodeGen/SelectionDAGISel.h - Common Base Class------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the SelectionDAGISel class, which is used as the common
|
|
// base class for SelectionDAG-based instruction selectors.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_SELECTIONDAG_ISEL_H
|
|
#define LLVM_CODEGEN_SELECTIONDAG_ISEL_H
|
|
|
|
#include "llvm/Pass.h"
|
|
#include "llvm/CodeGen/ValueTypes.h"
|
|
|
|
namespace llvm {
|
|
class SelectionDAG;
|
|
class SelectionDAGLowering;
|
|
class SDOperand;
|
|
class SSARegMap;
|
|
class MachineBasicBlock;
|
|
class MachineFunction;
|
|
class MachineInstr;
|
|
class TargetLowering;
|
|
class FunctionLoweringInfo;
|
|
|
|
/// SelectionDAGISel - This is the common base class used for SelectionDAG-based
|
|
/// pattern-matching instruction selectors.
|
|
class SelectionDAGISel : public FunctionPass {
|
|
public:
|
|
TargetLowering &TLI;
|
|
SSARegMap *RegMap;
|
|
SelectionDAG *CurDAG;
|
|
MachineBasicBlock *BB;
|
|
|
|
SelectionDAGISel(TargetLowering &tli) : TLI(tli) {}
|
|
|
|
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
|
|
AU.setPreservesAll();
|
|
}
|
|
|
|
virtual bool runOnFunction(Function &Fn);
|
|
|
|
unsigned MakeReg(MVT::ValueType VT);
|
|
|
|
virtual void InstructionSelectBasicBlock(SelectionDAG &SD) = 0;
|
|
|
|
private:
|
|
SDOperand CopyValueToVirtualRegister(SelectionDAGLowering &SDL,
|
|
Value *V, unsigned Reg);
|
|
void SelectBasicBlock(BasicBlock *BB, MachineFunction &MF,
|
|
FunctionLoweringInfo &FuncInfo);
|
|
|
|
void BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
|
|
std::vector<std::pair<MachineInstr*, unsigned> > &PHINodesToUpdate,
|
|
FunctionLoweringInfo &FuncInfo);
|
|
void LowerArguments(BasicBlock *BB, SelectionDAGLowering &SDL,
|
|
std::vector<SDOperand> &UnorderedChains);
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* LLVM_CODEGEN_SELECTIONDAG_ISEL_H */
|