1 //===-- MipsAsmPrinter.h - Mips LLVM Assembly Printer ----------*- C++ -*--===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Mips Assembly printer class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
15 #define LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
17 #include "Mips16HardFloatInfo.h"
18 #include "MipsMCInstLower.h"
19 #include "MipsMachineFunction.h"
20 #include "MipsSubtarget.h"
21 #include "llvm/CodeGen/AsmPrinter.h"
22 #include "llvm/Support/Compiler.h"
23 #include "llvm/Target/TargetMachine.h"
28 class MachineBasicBlock;
29 class MipsTargetStreamer;
33 class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
34 MipsTargetStreamer &getTargetStreamer() const;
36 void EmitInstrWithMacroNoAT(const MachineInstr *MI);
39 // tblgen'erated function.
40 bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
41 const MachineInstr *MI);
43 // Emit PseudoReturn, PseudoReturn64, PseudoIndirectBranch,
44 // and PseudoIndirectBranch64 as a JR, JR_MM, JALR, or JALR64 as appropriate
46 void emitPseudoIndirectBranch(MCStreamer &OutStreamer,
47 const MachineInstr *MI);
49 // lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
50 bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
52 /// MCP - Keep a pointer to constantpool entries of the current
54 const MachineConstantPool *MCP;
56 /// InConstantPool - Maintain state when emitting a sequence of constant
57 /// pool entries so we can properly mark them as data regions.
60 std::map<const char *, const llvm::Mips16HardFloatInfo::FuncSignature *>
63 void emitInlineAsmStart() const override;
65 void emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
66 const MCSubtargetInfo *EndInfo) const override;
68 void EmitJal(const MCSubtargetInfo &STI, MCSymbol *Symbol);
70 void EmitInstrReg(const MCSubtargetInfo &STI, unsigned Opcode, unsigned Reg);
72 void EmitInstrRegReg(const MCSubtargetInfo &STI, unsigned Opcode,
73 unsigned Reg1, unsigned Reg2);
75 void EmitInstrRegRegReg(const MCSubtargetInfo &STI, unsigned Opcode,
76 unsigned Reg1, unsigned Reg2, unsigned Reg3);
78 void EmitMovFPIntPair(const MCSubtargetInfo &STI, unsigned MovOpc,
79 unsigned Reg1, unsigned Reg2, unsigned FPReg1,
80 unsigned FPReg2, bool LE);
82 void EmitSwapFPIntParams(const MCSubtargetInfo &STI,
83 Mips16HardFloatInfo::FPParamVariant, bool LE,
86 void EmitSwapFPIntRetval(const MCSubtargetInfo &STI,
87 Mips16HardFloatInfo::FPReturnVariant, bool LE);
89 void EmitFPCallStub(const char *, const Mips16HardFloatInfo::FuncSignature *);
91 void NaClAlignIndirectJumpTargets(MachineFunction &MF);
93 bool isLongBranchPseudo(int Opcode) const;
97 const MipsSubtarget *Subtarget;
98 const MipsFunctionInfo *MipsFI;
99 MipsMCInstLower MCInstLowering;
101 // We initialize the subtarget here and in runOnMachineFunction
102 // since there are certain target specific flags (ABI) that could
103 // reside on the TargetMachine, but are on the subtarget currently
104 // and we need them for the beginning of file output before we've
105 // seen a single function.
106 explicit MipsAsmPrinter(TargetMachine &TM,
107 std::unique_ptr<MCStreamer> Streamer)
108 : AsmPrinter(TM, std::move(Streamer)), MCP(nullptr),
109 InConstantPool(false), MCInstLowering(*this) {}
111 const char *getPassName() const override {
112 return "Mips Assembly Printer";
115 bool runOnMachineFunction(MachineFunction &MF) override;
117 void EmitConstantPool() override {
118 bool UsingConstantPools =
119 (Subtarget->inMips16Mode() && Subtarget->useConstantIslands());
120 if (!UsingConstantPools)
121 AsmPrinter::EmitConstantPool();
122 // we emit constant pools customly!
125 void EmitInstruction(const MachineInstr *MI) override;
126 void printSavedRegsBitmask();
127 void emitFrameDirective();
128 const char *getCurrentABIString() const;
129 void EmitFunctionEntryLabel() override;
130 void EmitFunctionBodyStart() override;
131 void EmitFunctionBodyEnd() override;
132 bool isBlockOnlyReachableByFallthrough(
133 const MachineBasicBlock* MBB) const override;
134 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
135 unsigned AsmVariant, const char *ExtraCode,
136 raw_ostream &O) override;
137 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
138 unsigned AsmVariant, const char *ExtraCode,
139 raw_ostream &O) override;
140 void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
141 void printUnsignedImm(const MachineInstr *MI, int opNum, raw_ostream &O);
142 void printUnsignedImm8(const MachineInstr *MI, int opNum, raw_ostream &O);
143 void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
144 void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
145 void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
146 const char *Modifier = nullptr);
147 void printRegisterList(const MachineInstr *MI, int opNum, raw_ostream &O);
148 void EmitStartOfAsmFile(Module &M) override;
149 void EmitEndOfAsmFile(Module &M) override;
150 void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);