1//===-- MipsTargetStreamer.h - Mips Target Streamer ------------*- 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#ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H
10#define LLVM_LIB_TARGET_MIPS_MIPSTARGETSTREAMER_H
11
12#include "MCTargetDesc/MipsABIFlagsSection.h"
13#include "MCTargetDesc/MipsABIInfo.h"
14#include "llvm/ADT/STLExtras.h"
15#include "llvm/MC/MCELFStreamer.h"
16#include "llvm/MC/MCRegisterInfo.h"
17#include "llvm/MC/MCStreamer.h"
18
19namespace llvm {
20
21class formatted_raw_ostream;
22
23class MipsTargetStreamer : public MCTargetStreamer {
24public:
25 MipsTargetStreamer(MCStreamer &S);
26
27 virtual void setPic(bool Value) {}
28
29 virtual void emitDirectiveSetMicroMips();
30 virtual void emitDirectiveSetNoMicroMips();
31 virtual void setUsesMicroMips();
32 virtual void emitDirectiveSetMips16();
33 virtual void emitDirectiveSetNoMips16();
34
35 virtual void emitDirectiveSetReorder();
36 virtual void emitDirectiveSetNoReorder();
37 virtual void emitDirectiveSetMacro();
38 virtual void emitDirectiveSetNoMacro();
39 virtual void emitDirectiveSetMsa();
40 virtual void emitDirectiveSetNoMsa();
41 virtual void emitDirectiveSetMt();
42 virtual void emitDirectiveSetNoMt();
43 virtual void emitDirectiveSetCRC();
44 virtual void emitDirectiveSetNoCRC();
45 virtual void emitDirectiveSetVirt();
46 virtual void emitDirectiveSetNoVirt();
47 virtual void emitDirectiveSetGINV();
48 virtual void emitDirectiveSetNoGINV();
49 virtual void emitDirectiveSetAt();
50 virtual void emitDirectiveSetAtWithArg(unsigned RegNo);
51 virtual void emitDirectiveSetNoAt();
52 virtual void emitDirectiveEnd(StringRef Name);
53
54 virtual void emitDirectiveEnt(const MCSymbol &Symbol);
55 virtual void emitDirectiveAbiCalls();
56 virtual void emitDirectiveNaN2008();
57 virtual void emitDirectiveNaNLegacy();
58 virtual void emitDirectiveOptionPic0();
59 virtual void emitDirectiveOptionPic2();
60 virtual void emitDirectiveInsn();
61 virtual void emitFrame(unsigned StackReg, unsigned StackSize,
62 unsigned ReturnReg);
63 virtual void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff);
64 virtual void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff);
65
66 virtual void emitDirectiveSetArch(StringRef Arch);
67 virtual void emitDirectiveSetMips0();
68 virtual void emitDirectiveSetMips1();
69 virtual void emitDirectiveSetMips2();
70 virtual void emitDirectiveSetMips3();
71 virtual void emitDirectiveSetMips4();
72 virtual void emitDirectiveSetMips5();
73 virtual void emitDirectiveSetMips32();
74 virtual void emitDirectiveSetMips32R2();
75 virtual void emitDirectiveSetMips32R3();
76 virtual void emitDirectiveSetMips32R5();
77 virtual void emitDirectiveSetMips32R6();
78 virtual void emitDirectiveSetMips64();
79 virtual void emitDirectiveSetMips64R2();
80 virtual void emitDirectiveSetMips64R3();
81 virtual void emitDirectiveSetMips64R5();
82 virtual void emitDirectiveSetMips64R6();
83 virtual void emitDirectiveSetDsp();
84 virtual void emitDirectiveSetDspr2();
85 virtual void emitDirectiveSetNoDsp();
86 virtual void emitDirectiveSetMips3D();
87 virtual void emitDirectiveSetNoMips3D();
88 virtual void emitDirectiveSetPop();
89 virtual void emitDirectiveSetPush();
90 virtual void emitDirectiveSetSoftFloat();
91 virtual void emitDirectiveSetHardFloat();
92
93 // PIC support
94 virtual void emitDirectiveCpAdd(unsigned RegNo);
95 virtual void emitDirectiveCpLoad(unsigned RegNo);
96 virtual void emitDirectiveCpLocal(unsigned RegNo);
97 virtual bool emitDirectiveCpRestore(int Offset,
98 function_ref<unsigned()> GetATReg,
99 SMLoc IDLoc, const MCSubtargetInfo *STI);
100 virtual void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
101 const MCSymbol &Sym, bool IsReg);
102 virtual void emitDirectiveCpreturn(unsigned SaveLocation,
103 bool SaveLocationIsRegister);
104
105 // FP abiflags directives
106 virtual void emitDirectiveModuleFP();
107 virtual void emitDirectiveModuleOddSPReg();
108 virtual void emitDirectiveModuleSoftFloat();
109 virtual void emitDirectiveModuleHardFloat();
110 virtual void emitDirectiveModuleMT();
111 virtual void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value);
112 virtual void emitDirectiveSetOddSPReg();
113 virtual void emitDirectiveSetNoOddSPReg();
114 virtual void emitDirectiveModuleCRC();
115 virtual void emitDirectiveModuleNoCRC();
116 virtual void emitDirectiveModuleVirt();
117 virtual void emitDirectiveModuleNoVirt();
118 virtual void emitDirectiveModuleGINV();
119 virtual void emitDirectiveModuleNoGINV();
120
121 void emitR(unsigned Opcode, unsigned Reg0, SMLoc IDLoc,
122 const MCSubtargetInfo *STI);
123 void emitII(unsigned Opcode, int16_t Imm1, int16_t Imm2, SMLoc IDLoc,
124 const MCSubtargetInfo *STI);
125 void emitRX(unsigned Opcode, unsigned Reg0, MCOperand Op1, SMLoc IDLoc,
126 const MCSubtargetInfo *STI);
127 void emitRI(unsigned Opcode, unsigned Reg0, int32_t Imm, SMLoc IDLoc,
128 const MCSubtargetInfo *STI);
129 void emitRR(unsigned Opcode, unsigned Reg0, unsigned Reg1, SMLoc IDLoc,
130 const MCSubtargetInfo *STI);
131 void emitRRX(unsigned Opcode, unsigned Reg0, unsigned Reg1, MCOperand Op2,
132 SMLoc IDLoc, const MCSubtargetInfo *STI);
133 void emitRRR(unsigned Opcode, unsigned Reg0, unsigned Reg1, unsigned Reg2,
134 SMLoc IDLoc, const MCSubtargetInfo *STI);
135 void emitRRRX(unsigned Opcode, unsigned Reg0, unsigned Reg1, unsigned Reg2,
136 MCOperand Op3, SMLoc IDLoc, const MCSubtargetInfo *STI);
137 void emitRRI(unsigned Opcode, unsigned Reg0, unsigned Reg1, int16_t Imm,
138 SMLoc IDLoc, const MCSubtargetInfo *STI);
139 void emitRRIII(unsigned Opcode, unsigned Reg0, unsigned Reg1, int16_t Imm0,
140 int16_t Imm1, int16_t Imm2, SMLoc IDLoc,
141 const MCSubtargetInfo *STI);
142 void emitAddu(unsigned DstReg, unsigned SrcReg, unsigned TrgReg, bool Is64Bit,
143 const MCSubtargetInfo *STI);
144 void emitDSLL(unsigned DstReg, unsigned SrcReg, int16_t ShiftAmount,
145 SMLoc IDLoc, const MCSubtargetInfo *STI);
146 void emitEmptyDelaySlot(bool hasShortDelaySlot, SMLoc IDLoc,
147 const MCSubtargetInfo *STI);
148 void emitNop(SMLoc IDLoc, const MCSubtargetInfo *STI);
149
150 /// Emit a store instruction with an offset. If the offset is out of range
151 /// then it will be synthesized using the assembler temporary.
152 ///
153 /// GetATReg() is a callback that can be used to obtain the current assembler
154 /// temporary and is only called when the assembler temporary is required. It
155 /// must handle the case where no assembler temporary is available (typically
156 /// by reporting an error).
157 void emitStoreWithImmOffset(unsigned Opcode, unsigned SrcReg,
158 unsigned BaseReg, int64_t Offset,
159 function_ref<unsigned()> GetATReg, SMLoc IDLoc,
160 const MCSubtargetInfo *STI);
161 void emitLoadWithImmOffset(unsigned Opcode, unsigned DstReg, unsigned BaseReg,
162 int64_t Offset, unsigned TmpReg, SMLoc IDLoc,
163 const MCSubtargetInfo *STI);
164 void emitGPRestore(int Offset, SMLoc IDLoc, const MCSubtargetInfo *STI);
165
166 void forbidModuleDirective() { ModuleDirectiveAllowed = false; }
167 void reallowModuleDirective() { ModuleDirectiveAllowed = true; }
168 bool isModuleDirectiveAllowed() { return ModuleDirectiveAllowed; }
169
170 // This method enables template classes to set internal abi flags
171 // structure values.
172 template <class PredicateLibrary>
173 void updateABIInfo(const PredicateLibrary &P) {
174 ABI = P.getABI();
175 ABIFlagsSection.setAllFromPredicates(P);
176 }
177
178 MipsABIFlagsSection &getABIFlagsSection() { return ABIFlagsSection; }
179 const MipsABIInfo &getABI() const {
180 assert(ABI && "ABI hasn't been set!");
181 return *ABI;
182 }
183
184protected:
185 std::optional<MipsABIInfo> ABI;
186 MipsABIFlagsSection ABIFlagsSection;
187
188 bool GPRInfoSet;
189 unsigned GPRBitMask;
190 int GPROffset;
191
192 bool FPRInfoSet;
193 unsigned FPRBitMask;
194 int FPROffset;
195
196 bool FrameInfoSet;
197 int FrameOffset;
198 unsigned FrameReg;
199 unsigned GPReg;
200 unsigned ReturnReg;
201
202private:
203 bool ModuleDirectiveAllowed;
204};
205
206// This part is for ascii assembly output
207class MipsTargetAsmStreamer : public MipsTargetStreamer {
208 formatted_raw_ostream &OS;
209
210public:
211 MipsTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
212 void emitDirectiveSetMicroMips() override;
213 void emitDirectiveSetNoMicroMips() override;
214 void emitDirectiveSetMips16() override;
215 void emitDirectiveSetNoMips16() override;
216
217 void emitDirectiveSetReorder() override;
218 void emitDirectiveSetNoReorder() override;
219 void emitDirectiveSetMacro() override;
220 void emitDirectiveSetNoMacro() override;
221 void emitDirectiveSetMsa() override;
222 void emitDirectiveSetNoMsa() override;
223 void emitDirectiveSetMt() override;
224 void emitDirectiveSetNoMt() override;
225 void emitDirectiveSetCRC() override;
226 void emitDirectiveSetNoCRC() override;
227 void emitDirectiveSetVirt() override;
228 void emitDirectiveSetNoVirt() override;
229 void emitDirectiveSetGINV() override;
230 void emitDirectiveSetNoGINV() override;
231 void emitDirectiveSetAt() override;
232 void emitDirectiveSetAtWithArg(unsigned RegNo) override;
233 void emitDirectiveSetNoAt() override;
234 void emitDirectiveEnd(StringRef Name) override;
235
236 void emitDirectiveEnt(const MCSymbol &Symbol) override;
237 void emitDirectiveAbiCalls() override;
238 void emitDirectiveNaN2008() override;
239 void emitDirectiveNaNLegacy() override;
240 void emitDirectiveOptionPic0() override;
241 void emitDirectiveOptionPic2() override;
242 void emitDirectiveInsn() override;
243 void emitFrame(unsigned StackReg, unsigned StackSize,
244 unsigned ReturnReg) override;
245 void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override;
246 void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
247
248 void emitDirectiveSetArch(StringRef Arch) override;
249 void emitDirectiveSetMips0() override;
250 void emitDirectiveSetMips1() override;
251 void emitDirectiveSetMips2() override;
252 void emitDirectiveSetMips3() override;
253 void emitDirectiveSetMips4() override;
254 void emitDirectiveSetMips5() override;
255 void emitDirectiveSetMips32() override;
256 void emitDirectiveSetMips32R2() override;
257 void emitDirectiveSetMips32R3() override;
258 void emitDirectiveSetMips32R5() override;
259 void emitDirectiveSetMips32R6() override;
260 void emitDirectiveSetMips64() override;
261 void emitDirectiveSetMips64R2() override;
262 void emitDirectiveSetMips64R3() override;
263 void emitDirectiveSetMips64R5() override;
264 void emitDirectiveSetMips64R6() override;
265 void emitDirectiveSetDsp() override;
266 void emitDirectiveSetDspr2() override;
267 void emitDirectiveSetNoDsp() override;
268 void emitDirectiveSetMips3D() override;
269 void emitDirectiveSetNoMips3D() override;
270 void emitDirectiveSetPop() override;
271 void emitDirectiveSetPush() override;
272 void emitDirectiveSetSoftFloat() override;
273 void emitDirectiveSetHardFloat() override;
274
275 // PIC support
276 void emitDirectiveCpAdd(unsigned RegNo) override;
277 void emitDirectiveCpLoad(unsigned RegNo) override;
278 void emitDirectiveCpLocal(unsigned RegNo) override;
279
280 /// Emit a .cprestore directive. If the offset is out of range then it will
281 /// be synthesized using the assembler temporary.
282 ///
283 /// GetATReg() is a callback that can be used to obtain the current assembler
284 /// temporary and is only called when the assembler temporary is required. It
285 /// must handle the case where no assembler temporary is available (typically
286 /// by reporting an error).
287 bool emitDirectiveCpRestore(int Offset, function_ref<unsigned()> GetATReg,
288 SMLoc IDLoc, const MCSubtargetInfo *STI) override;
289 void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
290 const MCSymbol &Sym, bool IsReg) override;
291 void emitDirectiveCpreturn(unsigned SaveLocation,
292 bool SaveLocationIsRegister) override;
293
294 // FP abiflags directives
295 void emitDirectiveModuleFP() override;
296 void emitDirectiveModuleOddSPReg() override;
297 void emitDirectiveModuleSoftFloat() override;
298 void emitDirectiveModuleHardFloat() override;
299 void emitDirectiveModuleMT() override;
300 void emitDirectiveModuleCRC() override;
301 void emitDirectiveModuleNoCRC() override;
302 void emitDirectiveModuleVirt() override;
303 void emitDirectiveModuleNoVirt() override;
304 void emitDirectiveModuleGINV() override;
305 void emitDirectiveModuleNoGINV() override;
306 void emitDirectiveSetFp(MipsABIFlagsSection::FpABIKind Value) override;
307 void emitDirectiveSetOddSPReg() override;
308 void emitDirectiveSetNoOddSPReg() override;
309};
310
311// This part is for ELF object output
312class MipsTargetELFStreamer : public MipsTargetStreamer {
313 bool MicroMipsEnabled;
314 const MCSubtargetInfo &STI;
315 bool Pic;
316
317public:
318 bool isMicroMipsEnabled() const { return MicroMipsEnabled; }
319 MCELFStreamer &getStreamer();
320 MipsTargetELFStreamer(MCStreamer &S, const MCSubtargetInfo &STI);
321
322 void setPic(bool Value) override { Pic = Value; }
323
324 void emitLabel(MCSymbol *Symbol) override;
325 void emitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
326 void finish() override;
327
328 void emitDirectiveSetMicroMips() override;
329 void emitDirectiveSetNoMicroMips() override;
330 void setUsesMicroMips() override;
331 void emitDirectiveSetMips16() override;
332
333 void emitDirectiveSetNoReorder() override;
334 void emitDirectiveEnd(StringRef Name) override;
335
336 void emitDirectiveEnt(const MCSymbol &Symbol) override;
337 void emitDirectiveAbiCalls() override;
338 void emitDirectiveNaN2008() override;
339 void emitDirectiveNaNLegacy() override;
340 void emitDirectiveOptionPic0() override;
341 void emitDirectiveOptionPic2() override;
342 void emitDirectiveInsn() override;
343 void emitFrame(unsigned StackReg, unsigned StackSize,
344 unsigned ReturnReg) override;
345 void emitMask(unsigned CPUBitmask, int CPUTopSavedRegOff) override;
346 void emitFMask(unsigned FPUBitmask, int FPUTopSavedRegOff) override;
347
348 // PIC support
349 void emitDirectiveCpAdd(unsigned RegNo) override;
350 void emitDirectiveCpLoad(unsigned RegNo) override;
351 void emitDirectiveCpLocal(unsigned RegNo) override;
352 bool emitDirectiveCpRestore(int Offset, function_ref<unsigned()> GetATReg,
353 SMLoc IDLoc, const MCSubtargetInfo *STI) override;
354 void emitDirectiveCpsetup(unsigned RegNo, int RegOrOffset,
355 const MCSymbol &Sym, bool IsReg) override;
356 void emitDirectiveCpreturn(unsigned SaveLocation,
357 bool SaveLocationIsRegister) override;
358
359 void emitMipsAbiFlags();
360};
361}
362#endif
363

source code of llvm/lib/Target/Mips/MipsTargetStreamer.h