LLVM 19.0.0git
MipsAsmPrinter.h
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1//===- MipsAsmPrinter.h - Mips LLVM Assembly Printer -----------*- C++ -*--===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// Mips Assembly printer class.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
14#define LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
15
16#include "Mips16HardFloatInfo.h"
17#include "MipsMCInstLower.h"
18#include "MipsSubtarget.h"
20#include "llvm/MC/MCStreamer.h"
22#include <algorithm>
23#include <map>
24#include <memory>
25
26namespace llvm {
27
28class MCOperand;
29class MCSubtargetInfo;
30class MCSymbol;
31class MachineBasicBlock;
32class MachineConstantPool;
33class MachineFunction;
34class MachineInstr;
35class MachineOperand;
36class MipsFunctionInfo;
37class MipsTargetStreamer;
38class Module;
39class raw_ostream;
40class TargetMachine;
41
43 MipsTargetStreamer &getTargetStreamer() const;
44
45 void EmitInstrWithMacroNoAT(const MachineInstr *MI);
46
47 //===------------------------------------------------------------------===//
48 // XRay implementation
49 //===------------------------------------------------------------------===//
50
51public:
52 // XRay-specific lowering for Mips.
53 void LowerPATCHABLE_FUNCTION_ENTER(const MachineInstr &MI);
54 void LowerPATCHABLE_FUNCTION_EXIT(const MachineInstr &MI);
55 void LowerPATCHABLE_TAIL_CALL(const MachineInstr &MI);
56
57private:
58 /// MCP - Keep a pointer to constantpool entries of the current
59 /// MachineFunction.
60 const MachineConstantPool *MCP = nullptr;
61
62 /// InConstantPool - Maintain state when emitting a sequence of constant
63 /// pool entries so we can properly mark them as data regions.
64 bool InConstantPool = false;
65
66 std::map<const char *, const Mips16HardFloatInfo::FuncSignature *>
67 StubsNeeded;
68
69 void EmitSled(const MachineInstr &MI, SledKind Kind);
70
71 // tblgen'erated function.
72 bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
73 const MachineInstr *MI);
74
75 // Emit PseudoReturn, PseudoReturn64, PseudoIndirectBranch,
76 // and PseudoIndirectBranch64 as a JR, JR_MM, JALR, or JALR64 as appropriate
77 // for the target.
78 void emitPseudoIndirectBranch(MCStreamer &OutStreamer,
79 const MachineInstr *MI);
80
81 // lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
82 bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
83
84 void emitInlineAsmStart() const override;
85
86 void emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
87 const MCSubtargetInfo *EndInfo) const override;
88
89 void EmitJal(const MCSubtargetInfo &STI, MCSymbol *Symbol);
90
91 void EmitInstrReg(const MCSubtargetInfo &STI, unsigned Opcode, unsigned Reg);
92
93 void EmitInstrRegReg(const MCSubtargetInfo &STI, unsigned Opcode,
94 unsigned Reg1, unsigned Reg2);
95
96 void EmitInstrRegRegReg(const MCSubtargetInfo &STI, unsigned Opcode,
97 unsigned Reg1, unsigned Reg2, unsigned Reg3);
98
99 void EmitMovFPIntPair(const MCSubtargetInfo &STI, unsigned MovOpc,
100 unsigned Reg1, unsigned Reg2, unsigned FPReg1,
101 unsigned FPReg2, bool LE);
102
103 void EmitSwapFPIntParams(const MCSubtargetInfo &STI,
105 bool ToFP);
106
107 void EmitSwapFPIntRetval(const MCSubtargetInfo &STI,
109
110 void EmitFPCallStub(const char *, const Mips16HardFloatInfo::FuncSignature *);
111
112 void NaClAlignIndirectJumpTargets(MachineFunction &MF);
113
114 bool isLongBranchPseudo(int Opcode) const;
115
116public:
120
122 std::unique_ptr<MCStreamer> Streamer)
123 : AsmPrinter(TM, std::move(Streamer)), MCInstLowering(*this) {}
124
125 StringRef getPassName() const override { return "Mips Assembly Printer"; }
126
127 bool runOnMachineFunction(MachineFunction &MF) override;
128
129 void emitConstantPool() override {
130 bool UsingConstantPools =
131 (Subtarget->inMips16Mode() && Subtarget->useConstantIslands());
132 if (!UsingConstantPools)
133 AsmPrinter::emitConstantPool();
134 // we emit constant pools customly!
135 }
136
137 void emitInstruction(const MachineInstr *MI) override;
138 void printSavedRegsBitmask();
139 void emitFrameDirective();
140 const char *getCurrentABIString() const;
141 void emitFunctionEntryLabel() override;
142 void emitFunctionBodyStart() override;
143 void emitFunctionBodyEnd() override;
144 void emitBasicBlockEnd(const MachineBasicBlock &MBB) override;
145 bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
146 const char *ExtraCode, raw_ostream &O) override;
147 bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
148 const char *ExtraCode, raw_ostream &O) override;
149 void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
150 void printMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
151 void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
152 void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
153 const char *Modifier = nullptr);
154 void printRegisterList(const MachineInstr *MI, int opNum, raw_ostream &O);
155 void emitStartOfAsmFile(Module &M) override;
156 void emitEndOfAsmFile(Module &M) override;
157 void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
158 void emitDebugValue(const MCExpr *Value, unsigned Size) const override;
159};
160
161} // end namespace llvm
162
163#endif // LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
MachineBasicBlock & MBB
#define LLVM_LIBRARY_VISIBILITY
Definition: Compiler.h:131
uint64_t Size
IRTranslator LLVM IR MI
Machine Check Debug Module
unsigned Reg
const char LLVMTargetMachineRef TM
raw_pwrite_stream & OS
static bool printOperand(raw_ostream &OS, const SelectionDAG *G, const SDValue Value)
static void printMemOperand(raw_ostream &OS, const MachineMemOperand &MMO, const MachineFunction *MF, const Module *M, const MachineFrameInfo *MFI, const TargetInstrInfo *TII, LLVMContext &Ctx)
This class is intended to be used as a driving class for all asm writers.
Definition: AsmPrinter.h:85
Base class for the full range of assembler expressions which are needed for parsing.
Definition: MCExpr.h:35
Instances of this class represent operands of the MCInst class.
Definition: MCInst.h:36
Streaming machine code generation interface.
Definition: MCStreamer.h:212
Generic base class for all target subtargets.
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:40
The MachineConstantPool class keeps track of constants referenced by a function which must be spilled...
Representation of each machine instruction.
Definition: MachineInstr.h:69
MachineOperand class - Representation of each machine instruction operand.
MipsAsmPrinter(TargetMachine &TM, std::unique_ptr< MCStreamer > Streamer)
void emitConstantPool() override
Print to the current output stream assembly representations of the constants in the constant pool MCP...
MipsMCInstLower MCInstLowering
const MipsSubtarget * Subtarget
const MipsFunctionInfo * MipsFI
StringRef getPassName() const override
getPassName - Return a nice clean name for a pass.
MipsFunctionInfo - This class is derived from MachineFunction private Mips target-specific informatio...
MipsMCInstLower - This class is used to lower an MachineInstr into an MCInst.
static bool useConstantIslands()
bool inMips16Mode() const
A Module instance is used to store all the information related to an LLVM module.
Definition: Module.h:65
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:76
LLVM Value Representation.
Definition: Value.h:74
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
OutputIt move(R &&Range, OutputIt Out)
Provide wrappers to std::move which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1849
Implement std::hash so that hash_code can be used in STL containers.
Definition: BitVector.h:858