mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-25 14:32:53 +00:00
7df8462038
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76064 91177308-0d34-0410-b5e6-96231b3b80d8
103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
//==-- SystemZISelLowering.h - SystemZ DAG Lowering Interface ----*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the interfaces that SystemZ uses to lower LLVM code into a
|
|
// selection DAG.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TARGET_SystemZ_ISELLOWERING_H
|
|
#define LLVM_TARGET_SystemZ_ISELLOWERING_H
|
|
|
|
#include "SystemZ.h"
|
|
#include "SystemZRegisterInfo.h"
|
|
#include "llvm/CodeGen/SelectionDAG.h"
|
|
#include "llvm/Target/TargetLowering.h"
|
|
|
|
namespace llvm {
|
|
namespace SystemZISD {
|
|
enum {
|
|
FIRST_NUMBER = ISD::BUILTIN_OP_END,
|
|
|
|
/// Return with a flag operand. Operand 0 is the chain operand.
|
|
RET_FLAG,
|
|
|
|
/// CALL/TAILCALL - These operations represent an abstract call
|
|
/// instruction, which includes a bunch of information.
|
|
CALL,
|
|
|
|
/// PCRelativeWrapper - PC relative address
|
|
PCRelativeWrapper,
|
|
|
|
/// CMP, UCMP - Compare instruction
|
|
CMP,
|
|
UCMP,
|
|
|
|
/// BRCOND - Conditional branch. Operand 0 is chain operand, operand 1 is
|
|
/// the block to branch if condition is true, operand 2 is condition code
|
|
/// and operand 3 is the flag operand produced by a CMP instruction.
|
|
BRCOND,
|
|
|
|
/// SELECT - Operands 0 and 1 are selection variables, operand 2 is
|
|
/// condition code and operand 3 is the flag operand.
|
|
SELECT
|
|
};
|
|
}
|
|
|
|
class SystemZSubtarget;
|
|
class SystemZTargetMachine;
|
|
|
|
class SystemZTargetLowering : public TargetLowering {
|
|
public:
|
|
explicit SystemZTargetLowering(SystemZTargetMachine &TM);
|
|
|
|
/// LowerOperation - Provide custom lowering hooks for some operations.
|
|
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
|
|
|
|
/// getTargetNodeName - This method returns the name of a target specific
|
|
/// DAG node.
|
|
virtual const char *getTargetNodeName(unsigned Opcode) const;
|
|
|
|
/// getFunctionAlignment - Return the Log2 alignment of this function.
|
|
virtual unsigned getFunctionAlignment(const Function *F) const {
|
|
return 1;
|
|
}
|
|
|
|
SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerCALL(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG);
|
|
|
|
SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
|
|
SDValue LowerCCCCallTo(SDValue Op, SelectionDAG &DAG, unsigned CC);
|
|
SDNode* LowerCallResult(SDValue Chain, SDValue InFlag,
|
|
CallSDNode *TheCall,
|
|
unsigned CallingConv, SelectionDAG &DAG);
|
|
|
|
SDValue EmitCmp(SDValue LHS, SDValue RHS,
|
|
ISD::CondCode CC, SDValue &SystemZCC,
|
|
SelectionDAG &DAG);
|
|
|
|
|
|
MachineBasicBlock* EmitInstrWithCustomInserter(MachineInstr *MI,
|
|
MachineBasicBlock *BB) const;
|
|
|
|
private:
|
|
const SystemZSubtarget &Subtarget;
|
|
const SystemZTargetMachine &TM;
|
|
const SystemZRegisterInfo *RegInfo;
|
|
};
|
|
} // namespace llvm
|
|
|
|
#endif // LLVM_TARGET_SystemZ_ISELLOWERING_H
|