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//===-- MipsAsmPrinter.h - Mips LLVM Assembly Printer ----------*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Mips Assembly printer class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
#define LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
#include "Mips16HardFloatInfo.h"
#include "MipsMCInstLower.h"
#include "MipsMachineFunction.h"
#include "MipsSubtarget.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
class MCStreamer;
class MachineInstr;
class MachineBasicBlock;
class MipsTargetStreamer;
class Module;
class raw_ostream;
class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
MipsTargetStreamer &getTargetStreamer();
void EmitInstrWithMacroNoAT(const MachineInstr *MI);
private:
// tblgen'erated function.
bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
const MachineInstr *MI);
// Emit PseudoReturn, PseudoReturn64, PseudoIndirectBranch,
// and PseudoIndirectBranch64 as a JR, JR_MM, JALR, or JALR64 as appropriate
// for the target.
void emitPseudoIndirectBranch(MCStreamer &OutStreamer,
const MachineInstr *MI);
// lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
/// MCP - Keep a pointer to constantpool entries of the current
/// MachineFunction.
const MachineConstantPool *MCP;
/// InConstantPool - Maintain state when emitting a sequence of constant
/// pool entries so we can properly mark them as data regions.
bool InConstantPool;
std::map<const char *, const llvm::Mips16HardFloatInfo::FuncSignature *>
StubsNeeded;
void EmitJal(MCSymbol *Symbol);
void EmitInstrReg(unsigned Opcode, unsigned Reg);
void EmitInstrRegReg(unsigned Opcode, unsigned Reg1, unsigned Reg2);
void EmitInstrRegRegReg(unsigned Opcode, unsigned Reg1, unsigned Reg2,
unsigned Reg3);
void EmitMovFPIntPair(unsigned MovOpc, unsigned Reg1, unsigned Reg2,
unsigned FPReg1, unsigned FPReg2, bool LE);
void EmitSwapFPIntParams(Mips16HardFloatInfo::FPParamVariant, bool LE,
bool ToFP);
void EmitSwapFPIntRetval(Mips16HardFloatInfo::FPReturnVariant, bool LE);
void EmitFPCallStub(const char *, const Mips16HardFloatInfo::FuncSignature *);
void NaClAlignIndirectJumpTargets(MachineFunction &MF);
bool isLongBranchPseudo(int Opcode) const;
public:
const MipsSubtarget *Subtarget;
const MipsFunctionInfo *MipsFI;
MipsMCInstLower MCInstLowering;
// We initialize the subtarget here and in runOnMachineFunction
// since there are certain target specific flags (ABI) that could
// reside on the TargetMachine, but are on the subtarget currently
// and we need them for the beginning of file output before we've
// seen a single function.
explicit MipsAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
: AsmPrinter(TM, Streamer), MCP(nullptr), InConstantPool(false),
Subtarget(&TM.getSubtarget<MipsSubtarget>()), MCInstLowering(*this) {}
const char *getPassName() const override {
return "Mips Assembly Printer";
}
bool runOnMachineFunction(MachineFunction &MF) override;
void EmitConstantPool() override {
bool UsingConstantPools =
(Subtarget->inMips16Mode() && Subtarget->useConstantIslands());
if (!UsingConstantPools)
AsmPrinter::EmitConstantPool();
// we emit constant pools customly!
}
void EmitInstruction(const MachineInstr *MI) override;
void printSavedRegsBitmask();
void emitFrameDirective();
const char *getCurrentABIString() const;
void EmitFunctionEntryLabel() override;
void EmitFunctionBodyStart() override;
void EmitFunctionBodyEnd() override;
bool isBlockOnlyReachableByFallthrough(
const MachineBasicBlock* MBB) const override;
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode,
raw_ostream &O) override;
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
unsigned AsmVariant, const char *ExtraCode,
raw_ostream &O) override;
void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
void printUnsignedImm(const MachineInstr *MI, int opNum, raw_ostream &O);
void printUnsignedImm8(const MachineInstr *MI, int opNum, raw_ostream &O);
void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
const char *Modifier = nullptr);
void printRegisterList(const MachineInstr *MI, int opNum, raw_ostream &O);
void EmitStartOfAsmFile(Module &M) override;
void EmitEndOfAsmFile(Module &M) override;
void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
};
}
#endif
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