LLVM 24.0.0git
X86MCTargetDesc.cpp
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1//===-- X86MCTargetDesc.cpp - X86 Target Descriptions ---------------------===//
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// This file provides X86 specific target descriptions.
10//
11//===----------------------------------------------------------------------===//
12
13#include "X86MCTargetDesc.h"
15#include "X86ATTInstPrinter.h"
16#include "X86BaseInfo.h"
17#include "X86IntelInstPrinter.h"
18#include "X86MCAsmInfo.h"
19#include "X86MCLFIRewriter.h"
20#include "X86TargetStreamer.h"
21#include "llvm-c/Visibility.h"
22#include "llvm/ADT/APInt.h"
24#include "llvm/MC/MCDwarf.h"
26#include "llvm/MC/MCInstrInfo.h"
28#include "llvm/MC/MCStreamer.h"
34
35using namespace llvm;
36
37#define GET_REGINFO_MC_DESC
38#include "X86GenRegisterInfo.inc"
39
40#define GET_INSTRINFO_MC_DESC
41#define GET_INSTRINFO_MC_HELPERS
42#define ENABLE_INSTR_PREDICATE_VERIFIER
43#include "X86GenInstrInfo.inc"
44
45#define GET_SUBTARGETINFO_MC_DESC
46#include "X86GenSubtargetInfo.inc"
47
48std::string X86_MC::ParseX86Triple(const Triple &TT) {
49 std::string FS;
50 // SSE2 should default to enabled in 64-bit mode, but can be turned off
51 // explicitly.
52 if (TT.isX86_64())
53 FS = "+64bit-mode,-32bit-mode,-16bit-mode,+sse2";
54 else if (TT.getEnvironment() != Triple::CODE16)
55 FS = "-64bit-mode,+32bit-mode,-16bit-mode";
56 else
57 FS = "-64bit-mode,-32bit-mode,+16bit-mode";
58
59 if (TT.isX32())
60 FS += ",+x32";
61
62 return FS;
63}
64
65unsigned X86_MC::getDwarfRegFlavour(const Triple &TT, bool isEH) {
66 if (TT.isX86_64())
68
69 if (TT.isOSDarwin())
71 if (TT.isOSCygMing())
72 // Unsupported by now, just quick fallback
75}
76
78 return MI.getFlags() & X86::IP_HAS_LOCK;
79}
80
81static bool isMemOperand(const MCInst &MI, unsigned Op, unsigned RegClassID) {
82 const MCOperand &Base = MI.getOperand(Op + X86::AddrBaseReg);
83 const MCOperand &Index = MI.getOperand(Op + X86::AddrIndexReg);
84 const MCRegisterClass &RC = getX86MCRegisterClass(RegClassID);
85
86 return (Base.isReg() && Base.getReg() && RC.contains(Base.getReg())) ||
87 (Index.isReg() && Index.getReg() && RC.contains(Index.getReg()));
88}
89
90bool X86_MC::is16BitMemOperand(const MCInst &MI, unsigned Op,
91 const MCSubtargetInfo &STI) {
92 const MCOperand &Base = MI.getOperand(Op + X86::AddrBaseReg);
93 const MCOperand &Index = MI.getOperand(Op + X86::AddrIndexReg);
94
95 if (STI.hasFeature(X86::Is16Bit) && Base.isReg() && !Base.getReg() &&
96 Index.isReg() && !Index.getReg())
97 return true;
98 return isMemOperand(MI, Op, X86::GR16RegClassID);
99}
100
101bool X86_MC::is32BitMemOperand(const MCInst &MI, unsigned Op) {
102 const MCOperand &Base = MI.getOperand(Op + X86::AddrBaseReg);
103 const MCOperand &Index = MI.getOperand(Op + X86::AddrIndexReg);
104 if (Base.isReg() && Base.getReg() == X86::EIP) {
105 assert(Index.isReg() && !Index.getReg() && "Invalid eip-based address");
106 return true;
107 }
108 if (Index.isReg() && Index.getReg() == X86::EIZ)
109 return true;
110 return isMemOperand(MI, Op, X86::GR32RegClassID);
111}
112
113#ifndef NDEBUG
114bool X86_MC::is64BitMemOperand(const MCInst &MI, unsigned Op) {
115 return isMemOperand(MI, Op, X86::GR64RegClassID);
116}
117#endif
118
120 const MCSubtargetInfo &STI,
121 int MemoryOperand, uint64_t TSFlags) {
122 uint64_t AdSize = TSFlags & X86II::AdSizeMask;
123 bool Is16BitMode = STI.hasFeature(X86::Is16Bit);
124 bool Is32BitMode = STI.hasFeature(X86::Is32Bit);
125 bool Is64BitMode = STI.hasFeature(X86::Is64Bit);
126 if ((Is16BitMode && AdSize == X86II::AdSize32) ||
127 (Is32BitMode && AdSize == X86II::AdSize16) ||
128 (Is64BitMode && AdSize == X86II::AdSize32))
129 return true;
130 uint64_t Form = TSFlags & X86II::FormMask;
131 switch (Form) {
132 default:
133 break;
134 case X86II::RawFrmDstSrc: {
135 MCRegister siReg = MI.getOperand(1).getReg();
136 assert(((siReg == X86::SI && MI.getOperand(0).getReg() == X86::DI) ||
137 (siReg == X86::ESI && MI.getOperand(0).getReg() == X86::EDI) ||
138 (siReg == X86::RSI && MI.getOperand(0).getReg() == X86::RDI)) &&
139 "SI and DI register sizes do not match");
140 return (!Is32BitMode && siReg == X86::ESI) ||
141 (Is32BitMode && siReg == X86::SI);
142 }
143 case X86II::RawFrmSrc: {
144 MCRegister siReg = MI.getOperand(0).getReg();
145 return (!Is32BitMode && siReg == X86::ESI) ||
146 (Is32BitMode && siReg == X86::SI);
147 }
148 case X86II::RawFrmDst: {
149 MCRegister siReg = MI.getOperand(0).getReg();
150 return (!Is32BitMode && siReg == X86::EDI) ||
151 (Is32BitMode && siReg == X86::DI);
152 }
153 }
154
155 // Determine where the memory operand starts, if present.
156 if (MemoryOperand < 0)
157 return false;
158
159 if (STI.hasFeature(X86::Is64Bit)) {
160 assert(!is16BitMemOperand(MI, MemoryOperand, STI));
161 return is32BitMemOperand(MI, MemoryOperand);
162 }
163 if (STI.hasFeature(X86::Is32Bit)) {
164 assert(!is64BitMemOperand(MI, MemoryOperand));
165 return is16BitMemOperand(MI, MemoryOperand, STI);
166 }
167 assert(STI.hasFeature(X86::Is16Bit));
168 assert(!is64BitMemOperand(MI, MemoryOperand));
169 return !is16BitMemOperand(MI, MemoryOperand, STI);
170}
171
173 // FIXME: TableGen these.
174 for (unsigned Reg = X86::NoRegister + 1; Reg < X86::NUM_TARGET_REGS; ++Reg) {
175 unsigned SEH = MRI->getEncodingValue(Reg);
176 MRI->mapLLVMRegToSEHReg(Reg, SEH);
177 }
178
179 // Mapping from CodeView to MC register id.
180 static const struct {
182 MCPhysReg Reg;
183 } RegMap[] = {
184 {codeview::RegisterId::AL, X86::AL},
185 {codeview::RegisterId::CL, X86::CL},
186 {codeview::RegisterId::DL, X86::DL},
187 {codeview::RegisterId::BL, X86::BL},
188 {codeview::RegisterId::AH, X86::AH},
189 {codeview::RegisterId::CH, X86::CH},
190 {codeview::RegisterId::DH, X86::DH},
191 {codeview::RegisterId::BH, X86::BH},
192 {codeview::RegisterId::AX, X86::AX},
193 {codeview::RegisterId::CX, X86::CX},
194 {codeview::RegisterId::DX, X86::DX},
195 {codeview::RegisterId::BX, X86::BX},
196 {codeview::RegisterId::SP, X86::SP},
197 {codeview::RegisterId::BP, X86::BP},
198 {codeview::RegisterId::SI, X86::SI},
199 {codeview::RegisterId::DI, X86::DI},
200 {codeview::RegisterId::EAX, X86::EAX},
201 {codeview::RegisterId::ECX, X86::ECX},
202 {codeview::RegisterId::EDX, X86::EDX},
203 {codeview::RegisterId::EBX, X86::EBX},
204 {codeview::RegisterId::ESP, X86::ESP},
205 {codeview::RegisterId::EBP, X86::EBP},
206 {codeview::RegisterId::ESI, X86::ESI},
207 {codeview::RegisterId::EDI, X86::EDI},
208
209 {codeview::RegisterId::EFLAGS, X86::EFLAGS},
210
211 {codeview::RegisterId::ST0, X86::ST0},
212 {codeview::RegisterId::ST1, X86::ST1},
213 {codeview::RegisterId::ST2, X86::ST2},
214 {codeview::RegisterId::ST3, X86::ST3},
215 {codeview::RegisterId::ST4, X86::ST4},
216 {codeview::RegisterId::ST5, X86::ST5},
217 {codeview::RegisterId::ST6, X86::ST6},
218 {codeview::RegisterId::ST7, X86::ST7},
219
220 {codeview::RegisterId::ST0, X86::FP0},
221 {codeview::RegisterId::ST1, X86::FP1},
222 {codeview::RegisterId::ST2, X86::FP2},
223 {codeview::RegisterId::ST3, X86::FP3},
224 {codeview::RegisterId::ST4, X86::FP4},
225 {codeview::RegisterId::ST5, X86::FP5},
226 {codeview::RegisterId::ST6, X86::FP6},
227 {codeview::RegisterId::ST7, X86::FP7},
228
229 {codeview::RegisterId::MM0, X86::MM0},
230 {codeview::RegisterId::MM1, X86::MM1},
231 {codeview::RegisterId::MM2, X86::MM2},
232 {codeview::RegisterId::MM3, X86::MM3},
233 {codeview::RegisterId::MM4, X86::MM4},
234 {codeview::RegisterId::MM5, X86::MM5},
235 {codeview::RegisterId::MM6, X86::MM6},
236 {codeview::RegisterId::MM7, X86::MM7},
237
238 {codeview::RegisterId::XMM0, X86::XMM0},
239 {codeview::RegisterId::XMM1, X86::XMM1},
240 {codeview::RegisterId::XMM2, X86::XMM2},
241 {codeview::RegisterId::XMM3, X86::XMM3},
242 {codeview::RegisterId::XMM4, X86::XMM4},
243 {codeview::RegisterId::XMM5, X86::XMM5},
244 {codeview::RegisterId::XMM6, X86::XMM6},
245 {codeview::RegisterId::XMM7, X86::XMM7},
246
247 {codeview::RegisterId::XMM8, X86::XMM8},
248 {codeview::RegisterId::XMM9, X86::XMM9},
249 {codeview::RegisterId::XMM10, X86::XMM10},
250 {codeview::RegisterId::XMM11, X86::XMM11},
251 {codeview::RegisterId::XMM12, X86::XMM12},
252 {codeview::RegisterId::XMM13, X86::XMM13},
253 {codeview::RegisterId::XMM14, X86::XMM14},
254 {codeview::RegisterId::XMM15, X86::XMM15},
255
256 {codeview::RegisterId::SIL, X86::SIL},
257 {codeview::RegisterId::DIL, X86::DIL},
258 {codeview::RegisterId::BPL, X86::BPL},
259 {codeview::RegisterId::SPL, X86::SPL},
260 {codeview::RegisterId::RAX, X86::RAX},
261 {codeview::RegisterId::RBX, X86::RBX},
262 {codeview::RegisterId::RCX, X86::RCX},
263 {codeview::RegisterId::RDX, X86::RDX},
264 {codeview::RegisterId::RSI, X86::RSI},
265 {codeview::RegisterId::RDI, X86::RDI},
266 {codeview::RegisterId::RBP, X86::RBP},
267 {codeview::RegisterId::RSP, X86::RSP},
268 {codeview::RegisterId::R8, X86::R8},
269 {codeview::RegisterId::R9, X86::R9},
270 {codeview::RegisterId::R10, X86::R10},
271 {codeview::RegisterId::R11, X86::R11},
272 {codeview::RegisterId::R12, X86::R12},
273 {codeview::RegisterId::R13, X86::R13},
274 {codeview::RegisterId::R14, X86::R14},
275 {codeview::RegisterId::R15, X86::R15},
276 {codeview::RegisterId::R16, X86::R16},
277 {codeview::RegisterId::R17, X86::R17},
278 {codeview::RegisterId::R18, X86::R18},
279 {codeview::RegisterId::R19, X86::R19},
280 {codeview::RegisterId::R20, X86::R20},
281 {codeview::RegisterId::R21, X86::R21},
282 {codeview::RegisterId::R22, X86::R22},
283 {codeview::RegisterId::R23, X86::R23},
284 {codeview::RegisterId::R24, X86::R24},
285 {codeview::RegisterId::R25, X86::R25},
286 {codeview::RegisterId::R26, X86::R26},
287 {codeview::RegisterId::R27, X86::R27},
288 {codeview::RegisterId::R28, X86::R28},
289 {codeview::RegisterId::R29, X86::R29},
290 {codeview::RegisterId::R30, X86::R30},
291 {codeview::RegisterId::R31, X86::R31},
292 {codeview::RegisterId::R8B, X86::R8B},
293 {codeview::RegisterId::R9B, X86::R9B},
294 {codeview::RegisterId::R10B, X86::R10B},
295 {codeview::RegisterId::R11B, X86::R11B},
296 {codeview::RegisterId::R12B, X86::R12B},
297 {codeview::RegisterId::R13B, X86::R13B},
298 {codeview::RegisterId::R14B, X86::R14B},
299 {codeview::RegisterId::R15B, X86::R15B},
300 {codeview::RegisterId::R16B, X86::R16B},
301 {codeview::RegisterId::R17B, X86::R17B},
302 {codeview::RegisterId::R18B, X86::R18B},
303 {codeview::RegisterId::R19B, X86::R19B},
304 {codeview::RegisterId::R20B, X86::R20B},
305 {codeview::RegisterId::R21B, X86::R21B},
306 {codeview::RegisterId::R22B, X86::R22B},
307 {codeview::RegisterId::R23B, X86::R23B},
308 {codeview::RegisterId::R24B, X86::R24B},
309 {codeview::RegisterId::R25B, X86::R25B},
310 {codeview::RegisterId::R26B, X86::R26B},
311 {codeview::RegisterId::R27B, X86::R27B},
312 {codeview::RegisterId::R28B, X86::R28B},
313 {codeview::RegisterId::R29B, X86::R29B},
314 {codeview::RegisterId::R30B, X86::R30B},
315 {codeview::RegisterId::R31B, X86::R31B},
316 {codeview::RegisterId::R8W, X86::R8W},
317 {codeview::RegisterId::R9W, X86::R9W},
318 {codeview::RegisterId::R10W, X86::R10W},
319 {codeview::RegisterId::R11W, X86::R11W},
320 {codeview::RegisterId::R12W, X86::R12W},
321 {codeview::RegisterId::R13W, X86::R13W},
322 {codeview::RegisterId::R14W, X86::R14W},
323 {codeview::RegisterId::R15W, X86::R15W},
324 {codeview::RegisterId::R16W, X86::R16W},
325 {codeview::RegisterId::R17W, X86::R17W},
326 {codeview::RegisterId::R18W, X86::R18W},
327 {codeview::RegisterId::R19W, X86::R19W},
328 {codeview::RegisterId::R20W, X86::R20W},
329 {codeview::RegisterId::R21W, X86::R21W},
330 {codeview::RegisterId::R22W, X86::R22W},
331 {codeview::RegisterId::R23W, X86::R23W},
332 {codeview::RegisterId::R24W, X86::R24W},
333 {codeview::RegisterId::R25W, X86::R25W},
334 {codeview::RegisterId::R26W, X86::R26W},
335 {codeview::RegisterId::R27W, X86::R27W},
336 {codeview::RegisterId::R28W, X86::R28W},
337 {codeview::RegisterId::R29W, X86::R29W},
338 {codeview::RegisterId::R30W, X86::R30W},
339 {codeview::RegisterId::R31W, X86::R31W},
340 {codeview::RegisterId::R8D, X86::R8D},
341 {codeview::RegisterId::R9D, X86::R9D},
342 {codeview::RegisterId::R10D, X86::R10D},
343 {codeview::RegisterId::R11D, X86::R11D},
344 {codeview::RegisterId::R12D, X86::R12D},
345 {codeview::RegisterId::R13D, X86::R13D},
346 {codeview::RegisterId::R14D, X86::R14D},
347 {codeview::RegisterId::R15D, X86::R15D},
348 {codeview::RegisterId::R16D, X86::R16D},
349 {codeview::RegisterId::R17D, X86::R17D},
350 {codeview::RegisterId::R18D, X86::R18D},
351 {codeview::RegisterId::R19D, X86::R19D},
352 {codeview::RegisterId::R20D, X86::R20D},
353 {codeview::RegisterId::R21D, X86::R21D},
354 {codeview::RegisterId::R22D, X86::R22D},
355 {codeview::RegisterId::R23D, X86::R23D},
356 {codeview::RegisterId::R24D, X86::R24D},
357 {codeview::RegisterId::R25D, X86::R25D},
358 {codeview::RegisterId::R26D, X86::R26D},
359 {codeview::RegisterId::R27D, X86::R27D},
360 {codeview::RegisterId::R28D, X86::R28D},
361 {codeview::RegisterId::R29D, X86::R29D},
362 {codeview::RegisterId::R30D, X86::R30D},
363 {codeview::RegisterId::R31D, X86::R31D},
364 {codeview::RegisterId::AMD64_YMM0, X86::YMM0},
365 {codeview::RegisterId::AMD64_YMM1, X86::YMM1},
366 {codeview::RegisterId::AMD64_YMM2, X86::YMM2},
367 {codeview::RegisterId::AMD64_YMM3, X86::YMM3},
368 {codeview::RegisterId::AMD64_YMM4, X86::YMM4},
369 {codeview::RegisterId::AMD64_YMM5, X86::YMM5},
370 {codeview::RegisterId::AMD64_YMM6, X86::YMM6},
371 {codeview::RegisterId::AMD64_YMM7, X86::YMM7},
372 {codeview::RegisterId::AMD64_YMM8, X86::YMM8},
373 {codeview::RegisterId::AMD64_YMM9, X86::YMM9},
374 {codeview::RegisterId::AMD64_YMM10, X86::YMM10},
375 {codeview::RegisterId::AMD64_YMM11, X86::YMM11},
376 {codeview::RegisterId::AMD64_YMM12, X86::YMM12},
377 {codeview::RegisterId::AMD64_YMM13, X86::YMM13},
378 {codeview::RegisterId::AMD64_YMM14, X86::YMM14},
379 {codeview::RegisterId::AMD64_YMM15, X86::YMM15},
380 {codeview::RegisterId::AMD64_YMM16, X86::YMM16},
381 {codeview::RegisterId::AMD64_YMM17, X86::YMM17},
382 {codeview::RegisterId::AMD64_YMM18, X86::YMM18},
383 {codeview::RegisterId::AMD64_YMM19, X86::YMM19},
384 {codeview::RegisterId::AMD64_YMM20, X86::YMM20},
385 {codeview::RegisterId::AMD64_YMM21, X86::YMM21},
386 {codeview::RegisterId::AMD64_YMM22, X86::YMM22},
387 {codeview::RegisterId::AMD64_YMM23, X86::YMM23},
388 {codeview::RegisterId::AMD64_YMM24, X86::YMM24},
389 {codeview::RegisterId::AMD64_YMM25, X86::YMM25},
390 {codeview::RegisterId::AMD64_YMM26, X86::YMM26},
391 {codeview::RegisterId::AMD64_YMM27, X86::YMM27},
392 {codeview::RegisterId::AMD64_YMM28, X86::YMM28},
393 {codeview::RegisterId::AMD64_YMM29, X86::YMM29},
394 {codeview::RegisterId::AMD64_YMM30, X86::YMM30},
395 {codeview::RegisterId::AMD64_YMM31, X86::YMM31},
396 {codeview::RegisterId::AMD64_ZMM0, X86::ZMM0},
397 {codeview::RegisterId::AMD64_ZMM1, X86::ZMM1},
398 {codeview::RegisterId::AMD64_ZMM2, X86::ZMM2},
399 {codeview::RegisterId::AMD64_ZMM3, X86::ZMM3},
400 {codeview::RegisterId::AMD64_ZMM4, X86::ZMM4},
401 {codeview::RegisterId::AMD64_ZMM5, X86::ZMM5},
402 {codeview::RegisterId::AMD64_ZMM6, X86::ZMM6},
403 {codeview::RegisterId::AMD64_ZMM7, X86::ZMM7},
404 {codeview::RegisterId::AMD64_ZMM8, X86::ZMM8},
405 {codeview::RegisterId::AMD64_ZMM9, X86::ZMM9},
406 {codeview::RegisterId::AMD64_ZMM10, X86::ZMM10},
407 {codeview::RegisterId::AMD64_ZMM11, X86::ZMM11},
408 {codeview::RegisterId::AMD64_ZMM12, X86::ZMM12},
409 {codeview::RegisterId::AMD64_ZMM13, X86::ZMM13},
410 {codeview::RegisterId::AMD64_ZMM14, X86::ZMM14},
411 {codeview::RegisterId::AMD64_ZMM15, X86::ZMM15},
412 {codeview::RegisterId::AMD64_ZMM16, X86::ZMM16},
413 {codeview::RegisterId::AMD64_ZMM17, X86::ZMM17},
414 {codeview::RegisterId::AMD64_ZMM18, X86::ZMM18},
415 {codeview::RegisterId::AMD64_ZMM19, X86::ZMM19},
416 {codeview::RegisterId::AMD64_ZMM20, X86::ZMM20},
417 {codeview::RegisterId::AMD64_ZMM21, X86::ZMM21},
418 {codeview::RegisterId::AMD64_ZMM22, X86::ZMM22},
419 {codeview::RegisterId::AMD64_ZMM23, X86::ZMM23},
420 {codeview::RegisterId::AMD64_ZMM24, X86::ZMM24},
421 {codeview::RegisterId::AMD64_ZMM25, X86::ZMM25},
422 {codeview::RegisterId::AMD64_ZMM26, X86::ZMM26},
423 {codeview::RegisterId::AMD64_ZMM27, X86::ZMM27},
424 {codeview::RegisterId::AMD64_ZMM28, X86::ZMM28},
425 {codeview::RegisterId::AMD64_ZMM29, X86::ZMM29},
426 {codeview::RegisterId::AMD64_ZMM30, X86::ZMM30},
427 {codeview::RegisterId::AMD64_ZMM31, X86::ZMM31},
428 {codeview::RegisterId::AMD64_K0, X86::K0},
429 {codeview::RegisterId::AMD64_K1, X86::K1},
430 {codeview::RegisterId::AMD64_K2, X86::K2},
431 {codeview::RegisterId::AMD64_K3, X86::K3},
432 {codeview::RegisterId::AMD64_K4, X86::K4},
433 {codeview::RegisterId::AMD64_K5, X86::K5},
434 {codeview::RegisterId::AMD64_K6, X86::K6},
435 {codeview::RegisterId::AMD64_K7, X86::K7},
436 {codeview::RegisterId::AMD64_XMM16, X86::XMM16},
437 {codeview::RegisterId::AMD64_XMM17, X86::XMM17},
438 {codeview::RegisterId::AMD64_XMM18, X86::XMM18},
439 {codeview::RegisterId::AMD64_XMM19, X86::XMM19},
440 {codeview::RegisterId::AMD64_XMM20, X86::XMM20},
441 {codeview::RegisterId::AMD64_XMM21, X86::XMM21},
442 {codeview::RegisterId::AMD64_XMM22, X86::XMM22},
443 {codeview::RegisterId::AMD64_XMM23, X86::XMM23},
444 {codeview::RegisterId::AMD64_XMM24, X86::XMM24},
445 {codeview::RegisterId::AMD64_XMM25, X86::XMM25},
446 {codeview::RegisterId::AMD64_XMM26, X86::XMM26},
447 {codeview::RegisterId::AMD64_XMM27, X86::XMM27},
448 {codeview::RegisterId::AMD64_XMM28, X86::XMM28},
449 {codeview::RegisterId::AMD64_XMM29, X86::XMM29},
450 {codeview::RegisterId::AMD64_XMM30, X86::XMM30},
451 {codeview::RegisterId::AMD64_XMM31, X86::XMM31},
452
453 };
454 for (const auto &I : RegMap)
455 MRI->mapLLVMRegToCVReg(I.Reg, static_cast<int>(I.CVReg));
456}
457
459 StringRef CPU, StringRef FS) {
460 std::string ArchFS = X86_MC::ParseX86Triple(TT);
461 assert(!ArchFS.empty() && "Failed to parse X86 triple");
462 if (!FS.empty())
463 ArchFS = (Twine(ArchFS) + "," + FS).str();
464
465 if (CPU.empty())
466 CPU = "generic";
467
468 return createX86MCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, ArchFS);
469}
470
472 MCInstrInfo *X = new MCInstrInfo();
473 InitX86MCInstrInfo(X);
474 return X;
475}
476
478 unsigned RA = TT.isX86_64() ? X86::RIP // Should have dwarf #16.
479 : X86::EIP; // Should have dwarf #8.
480
482 InitX86MCRegisterInfo(X, RA, X86_MC::getDwarfRegFlavour(TT, false),
483 X86_MC::getDwarfRegFlavour(TT, true), RA);
485 return X;
486}
487
489 const MCRegisterInfo &MRI) {
490 auto &Set = MAI.getReservedIdentifiers();
491 // Register names: `call rsi` is misassembled as an indirect call. Use the
492 // Intel printer's table directly — it's the lowercase asm name in stable
493 // storage. MRI::getName() returns the uppercase enum name and would need
494 // an extra .lower() heap allocation per entry.
495 for (unsigned i = 1, e = MRI.getNumRegs(); i < e; ++i)
496 if (const char *Name = X86IntelInstPrinter::getRegisterName(i))
497 if (Name[0])
498 Set.insert(CachedHashStringRef(Name));
499 // Keywords that GAS Intel syntax misparses as constants, modifiers, or
500 // pseudo-registers instead of symbol references (e.g., `call byte` calls
501 // address 1, not symbol "byte"; `call flat` errors out).
502 for (StringRef KW : {"byte", "word", "dword", "fword", "qword", "mmword",
503 "tbyte", "oword", "xmmword", "ymmword", "zmmword",
504 "offset", "flat", "near", "far", "short"})
505 Set.insert(CachedHashStringRef(KW));
506 // Operator keywords parsed by GAS/X86AsmParser in Intel mode.
507 for (StringRef KW : {"and", "eq", "ge", "gt", "le", "lt", "mod", "ne", "not",
508 "or", "shl", "shr", "xor"})
509 Set.insert(CachedHashStringRef(KW));
510}
511
513 const Triple &TheTriple,
514 const MCTargetOptions &Options) {
515 bool is64Bit = TheTriple.isX86_64();
516
517 MCAsmInfo *MAI;
518 if (TheTriple.isOSBinFormatMachO()) {
519 if (is64Bit)
520 MAI = new X86_64MCAsmInfoDarwin(TheTriple, Options);
521 else
522 MAI = new X86MCAsmInfoDarwin(TheTriple, Options);
523 } else if (TheTriple.isOSBinFormatELF()) {
524 // Force the use of an ELF container.
525 MAI = new X86ELFMCAsmInfo(TheTriple, Options);
526 } else if (TheTriple.isWindowsMSVCEnvironment() ||
527 TheTriple.isWindowsCoreCLREnvironment() || TheTriple.isUEFI()) {
528 if (Options.getAssemblyLanguage().equals_insensitive("masm"))
529 MAI = new X86MCAsmInfoMicrosoftMASM(TheTriple, Options);
530 else
531 MAI = new X86MCAsmInfoMicrosoft(TheTriple, Options);
532 } else if (TheTriple.isOSCygMing() ||
533 TheTriple.isWindowsItaniumEnvironment()) {
534 MAI = new X86MCAsmInfoGNUCOFF(TheTriple, Options);
535 } else {
536 // The default is ELF.
537 MAI = new X86ELFMCAsmInfo(TheTriple, Options);
538 }
539
540 // Only Intel-syntax output needs to avoid register/keyword collisions; AT&T
541 // disambiguates registers with '%' and doesn't treat `byte`, `ptr`, etc. as
542 // keywords.
543 if (MAI->getOutputAssemblerDialect() != 0)
545
546 // Initialize initial frame state.
547 // Calculate amount of bytes used for return address storing
548 int stackGrowth = is64Bit ? -8 : -4;
549
550 // Initial state of the frame pointer is esp+stackGrowth.
551 unsigned StackPtr = is64Bit ? X86::RSP : X86::ESP;
553 nullptr, MRI.getDwarfRegNum(StackPtr, true), -stackGrowth);
554 MAI->addInitialFrameState(Inst);
555
556 // Add return address to move list
557 unsigned InstPtr = is64Bit ? X86::RIP : X86::EIP;
559 nullptr, MRI.getDwarfRegNum(InstPtr, true), stackGrowth);
560 MAI->addInitialFrameState(Inst2);
561
562 return MAI;
563}
564
566 unsigned SyntaxVariant,
567 const MCAsmInfo &MAI,
568 const MCInstrInfo &MII,
569 const MCRegisterInfo &MRI) {
570 if (SyntaxVariant == 0)
571 return new X86ATTInstPrinter(MAI, MII, MRI);
572 if (SyntaxVariant == 1)
573 return new X86IntelInstPrinter(MAI, MII, MRI);
574 return nullptr;
575}
576
578 MCContext &Ctx) {
579 // Default to the stock relocation info.
580 return llvm::createMCRelocationInfo(TheTriple, Ctx);
581}
582
583namespace llvm {
584namespace X86_MC {
585
586class X86MCInstrAnalysis : public MCInstrAnalysis {
587 X86MCInstrAnalysis(const X86MCInstrAnalysis &) = delete;
588 X86MCInstrAnalysis &operator=(const X86MCInstrAnalysis &) = delete;
589 ~X86MCInstrAnalysis() override = default;
590
591public:
593
594#define GET_STIPREDICATE_DECLS_FOR_MC_ANALYSIS
595#include "X86GenSubtargetInfo.inc"
596
597 bool clearsSuperRegisters(const MCRegisterInfo &MRI, const MCInst &Inst,
598 APInt &Mask) const override;
599 std::vector<std::pair<uint64_t, uint64_t>>
600 findPltEntries(uint64_t PltSectionVA, ArrayRef<uint8_t> PltContents,
601 const MCSubtargetInfo &STI) const override;
602
603 bool evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size,
604 uint64_t &Target) const override;
605 std::optional<uint64_t>
607 uint64_t Addr, uint64_t Size) const override;
608 std::optional<uint64_t>
610 uint64_t Size) const override;
611};
612
613#define GET_STIPREDICATE_DEFS_FOR_MC_ANALYSIS
614#include "X86GenSubtargetInfo.inc"
615
617 const MCInst &Inst,
618 APInt &Mask) const {
619 const MCInstrDesc &Desc = Info->get(Inst.getOpcode());
620 unsigned NumDefs = Desc.getNumDefs();
621 unsigned NumImplicitDefs = Desc.implicit_defs().size();
622 assert(Mask.getBitWidth() == NumDefs + NumImplicitDefs &&
623 "Unexpected number of bits in the mask!");
624
625 bool HasVEX = (Desc.TSFlags & X86II::EncodingMask) == X86II::VEX;
626 bool HasEVEX = (Desc.TSFlags & X86II::EncodingMask) == X86II::EVEX;
627 bool HasXOP = (Desc.TSFlags & X86II::EncodingMask) == X86II::XOP;
628
629 const MCRegisterClass &GR32RC = MRI.getRegClass(X86::GR32RegClassID);
630 const MCRegisterClass &VR128XRC = MRI.getRegClass(X86::VR128XRegClassID);
631 const MCRegisterClass &VR256XRC = MRI.getRegClass(X86::VR256XRegClassID);
632
633 auto ClearsSuperReg = [&](MCRegister RegID) {
634 // On X86-64, a general purpose integer register is viewed as a 64-bit
635 // register internal to the processor.
636 // An update to the lower 32 bits of a 64 bit integer register is
637 // architecturally defined to zero extend the upper 32 bits.
638 if (GR32RC.contains(RegID))
639 return true;
640
641 // Early exit if this instruction has no vex/evex/xop prefix.
642 if (!HasEVEX && !HasVEX && !HasXOP)
643 return false;
644
645 // All VEX and EVEX encoded instructions are defined to zero the high bits
646 // of the destination register up to VLMAX (i.e. the maximum vector register
647 // width pertaining to the instruction).
648 // We assume the same behavior for XOP instructions too.
649 return VR128XRC.contains(RegID) || VR256XRC.contains(RegID);
650 };
651
652 Mask.clearAllBits();
653 for (unsigned I = 0, E = NumDefs; I < E; ++I) {
654 const MCOperand &Op = Inst.getOperand(I);
655 if (ClearsSuperReg(Op.getReg()))
656 Mask.setBit(I);
657 }
658
659 for (unsigned I = 0, E = NumImplicitDefs; I < E; ++I) {
660 const MCPhysReg Reg = Desc.implicit_defs()[I];
661 if (ClearsSuperReg(Reg))
662 Mask.setBit(NumDefs + I);
663 }
664
665 return Mask.getBoolValue();
666}
667
668static std::vector<std::pair<uint64_t, uint64_t>>
669findX86PltEntries(uint64_t PltSectionVA, ArrayRef<uint8_t> PltContents) {
670 // Do a lightweight parsing of PLT entries.
671 std::vector<std::pair<uint64_t, uint64_t>> Result;
672 for (uint64_t Byte = 0, End = PltContents.size(); Byte + 6 < End; ) {
673 // Recognize a jmp.
674 if (PltContents[Byte] == 0xff && PltContents[Byte + 1] == 0xa3) {
675 // The jmp instruction at the beginning of each PLT entry jumps to the
676 // address of the base of the .got.plt section plus the immediate.
677 // Set the 1 << 32 bit to let ELFObjectFileBase::getPltEntries convert the
678 // offset to an address. Imm may be a negative int32_t if the GOT entry is
679 // in .got.
680 uint32_t Imm = support::endian::read32le(PltContents.data() + Byte + 2);
681 Result.emplace_back(PltSectionVA + Byte, Imm | (uint64_t(1) << 32));
682 Byte += 6;
683 } else if (PltContents[Byte] == 0xff && PltContents[Byte + 1] == 0x25) {
684 // The jmp instruction at the beginning of each PLT entry jumps to the
685 // immediate.
686 uint32_t Imm = support::endian::read32le(PltContents.data() + Byte + 2);
687 Result.push_back(std::make_pair(PltSectionVA + Byte, Imm));
688 Byte += 6;
689 } else
690 Byte++;
691 }
692 return Result;
693}
694
695static std::vector<std::pair<uint64_t, uint64_t>>
697 // Do a lightweight parsing of PLT entries.
698 std::vector<std::pair<uint64_t, uint64_t>> Result;
699 for (uint64_t Byte = 0, End = PltContents.size(); Byte + 6 < End; ) {
700 // Recognize a jmp.
701 if (PltContents[Byte] == 0xff && PltContents[Byte + 1] == 0x25) {
702 // The jmp instruction at the beginning of each PLT entry jumps to the
703 // address of the next instruction plus the immediate.
704 uint32_t Imm = support::endian::read32le(PltContents.data() + Byte + 2);
705 Result.push_back(
706 std::make_pair(PltSectionVA + Byte, PltSectionVA + Byte + 6 + Imm));
707 Byte += 6;
708 } else
709 Byte++;
710 }
711 return Result;
712}
713
714std::vector<std::pair<uint64_t, uint64_t>>
716 ArrayRef<uint8_t> PltContents,
717 const MCSubtargetInfo &STI) const {
718 const Triple &TargetTriple = STI.getTargetTriple();
719 switch (TargetTriple.getArch()) {
720 case Triple::x86:
721 return findX86PltEntries(PltSectionVA, PltContents);
722 case Triple::x86_64:
723 return findX86_64PltEntries(PltSectionVA, PltContents);
724 default:
725 return {};
726 }
727}
728
730 uint64_t Size, uint64_t &Target) const {
731 if (Inst.getNumOperands() == 0 ||
732 Info->get(Inst.getOpcode()).operands()[0].OperandType !=
734 return false;
735 Target = Addr + Size + Inst.getOperand(0).getImm();
736 return true;
737}
738
740 const MCInst &Inst, const MCSubtargetInfo *STI, uint64_t Addr,
741 uint64_t Size) const {
742 const MCInstrDesc &MCID = Info->get(Inst.getOpcode());
743 int MemOpStart = X86II::getMemoryOperandIdx(MCID);
744 if (MemOpStart == -1)
745 return std::nullopt;
746
747 const MCOperand &SegReg = Inst.getOperand(MemOpStart + X86::AddrSegmentReg);
748 const MCOperand &BaseReg = Inst.getOperand(MemOpStart + X86::AddrBaseReg);
749 const MCOperand &IndexReg = Inst.getOperand(MemOpStart + X86::AddrIndexReg);
750 const MCOperand &ScaleAmt = Inst.getOperand(MemOpStart + X86::AddrScaleAmt);
751 const MCOperand &Disp = Inst.getOperand(MemOpStart + X86::AddrDisp);
752 if (SegReg.getReg() || IndexReg.getReg() || ScaleAmt.getImm() != 1 ||
753 !Disp.isImm())
754 return std::nullopt;
755
756 // RIP-relative addressing.
757 if (BaseReg.getReg() == X86::RIP)
758 return Addr + Size + Disp.getImm();
759
760 return std::nullopt;
761}
762
763std::optional<uint64_t>
765 uint64_t Size) const {
766 if (Inst.getOpcode() != X86::LEA64r)
767 return std::nullopt;
768 const MCInstrDesc &MCID = Info->get(Inst.getOpcode());
769 int MemOpStart = X86II::getMemoryOperandIdx(MCID);
770 if (MemOpStart == -1)
771 return std::nullopt;
772 const MCOperand &SegReg = Inst.getOperand(MemOpStart + X86::AddrSegmentReg);
773 const MCOperand &BaseReg = Inst.getOperand(MemOpStart + X86::AddrBaseReg);
774 const MCOperand &IndexReg = Inst.getOperand(MemOpStart + X86::AddrIndexReg);
775 const MCOperand &ScaleAmt = Inst.getOperand(MemOpStart + X86::AddrScaleAmt);
776 const MCOperand &Disp = Inst.getOperand(MemOpStart + X86::AddrDisp);
777 // Must be a simple rip-relative address.
778 if (BaseReg.getReg() != X86::RIP || SegReg.getReg() || IndexReg.getReg() ||
779 ScaleAmt.getImm() != 1 || !Disp.isImm())
780 return std::nullopt;
781 // rip-relative ModR/M immediate is 32 bits.
782 assert(Size > 4 && "invalid instruction size for rip-relative lea");
783 return Size - 4;
784}
785
786} // end of namespace X86_MC
787
788} // end of namespace llvm
789
791 return new X86_MC::X86MCInstrAnalysis(Info);
792}
793
794static MCLFIRewriter *
796 std::unique_ptr<MCRegisterInfo> &&RegInfo,
797 std::unique_ptr<MCInstrInfo> &&InstInfo) {
798 return new X86::X86MCLFIRewriter(Ctx, std::move(RegInfo),
799 std::move(InstInfo));
800}
801
802// Force static initialization.
805 // Register the MC asm info.
807
808 // Register the MC instruction info.
810
811 // Register the MC register info.
813
814 // Register the MC subtarget info.
817
818 // Register the MC instruction analyzer.
820
821 // Register the code emitter.
823
824 // Register the LFI rewriter.
826
827 // Register the obj target streamer.
830
831 // Register the asm target streamer.
833
834 // Register the null streamer.
836
839
840 // Register the MCInstPrinter.
842
843 // Register the MC relocation info.
845 }
846
847 // Register the asm backend.
852}
853
855 bool High) {
856#define DEFAULT_NOREG \
857 default: \
858 return X86::NoRegister;
859#define SUB_SUPER(R1, R2, R3, R4, R) \
860 case X86::R1: \
861 case X86::R2: \
862 case X86::R3: \
863 case X86::R4: \
864 return X86::R;
865#define A_SUB_SUPER(R) \
866 case X86::AH: \
867 SUB_SUPER(AL, AX, EAX, RAX, R)
868#define D_SUB_SUPER(R) \
869 case X86::DH: \
870 SUB_SUPER(DL, DX, EDX, RDX, R)
871#define C_SUB_SUPER(R) \
872 case X86::CH: \
873 SUB_SUPER(CL, CX, ECX, RCX, R)
874#define B_SUB_SUPER(R) \
875 case X86::BH: \
876 SUB_SUPER(BL, BX, EBX, RBX, R)
877#define SI_SUB_SUPER(R) SUB_SUPER(SIL, SI, ESI, RSI, R)
878#define DI_SUB_SUPER(R) SUB_SUPER(DIL, DI, EDI, RDI, R)
879#define BP_SUB_SUPER(R) SUB_SUPER(BPL, BP, EBP, RBP, R)
880#define SP_SUB_SUPER(R) SUB_SUPER(SPL, SP, ESP, RSP, R)
881#define NO_SUB_SUPER(NO, REG) \
882 SUB_SUPER(R##NO##B, R##NO##W, R##NO##D, R##NO, REG)
883#define NO_SUB_SUPER_B(NO) NO_SUB_SUPER(NO, R##NO##B)
884#define NO_SUB_SUPER_W(NO) NO_SUB_SUPER(NO, R##NO##W)
885#define NO_SUB_SUPER_D(NO) NO_SUB_SUPER(NO, R##NO##D)
886#define NO_SUB_SUPER_Q(NO) NO_SUB_SUPER(NO, R##NO)
887 switch (Size) {
888 default:
889 llvm_unreachable("illegal register size");
890 case 8:
891 if (High) {
892 switch (Reg.id()) {
894 A_SUB_SUPER(AH)
895 D_SUB_SUPER(DH)
897 B_SUB_SUPER(BH)
898 }
899 } else {
900 switch (Reg.id()) {
902 A_SUB_SUPER(AL)
904 C_SUB_SUPER(CL)
905 B_SUB_SUPER(BL)
906 SI_SUB_SUPER(SIL)
907 DI_SUB_SUPER(DIL)
908 BP_SUB_SUPER(BPL)
909 SP_SUB_SUPER(SPL)
934 }
935 }
936 case 16:
937 switch (Reg.id()) {
939 A_SUB_SUPER(AX)
940 D_SUB_SUPER(DX)
941 C_SUB_SUPER(CX)
942 B_SUB_SUPER(BX)
944 DI_SUB_SUPER(DI)
945 BP_SUB_SUPER(BP)
946 SP_SUB_SUPER(SP)
971 }
972 case 32:
973 switch (Reg.id()) {
975 A_SUB_SUPER(EAX)
976 D_SUB_SUPER(EDX)
977 C_SUB_SUPER(ECX)
978 B_SUB_SUPER(EBX)
979 SI_SUB_SUPER(ESI)
980 DI_SUB_SUPER(EDI)
981 BP_SUB_SUPER(EBP)
982 SP_SUB_SUPER(ESP)
1000 NO_SUB_SUPER_D(25)
1001 NO_SUB_SUPER_D(26)
1002 NO_SUB_SUPER_D(27)
1003 NO_SUB_SUPER_D(28)
1004 NO_SUB_SUPER_D(29)
1005 NO_SUB_SUPER_D(30)
1006 NO_SUB_SUPER_D(31)
1007 }
1008 case 64:
1009 switch (Reg.id()) {
1011 A_SUB_SUPER(RAX)
1012 D_SUB_SUPER(RDX)
1013 C_SUB_SUPER(RCX)
1014 B_SUB_SUPER(RBX)
1015 SI_SUB_SUPER(RSI)
1017 BP_SUB_SUPER(RBP)
1018 SP_SUB_SUPER(RSP)
1021 NO_SUB_SUPER_Q(10)
1022 NO_SUB_SUPER_Q(11)
1023 NO_SUB_SUPER_Q(12)
1024 NO_SUB_SUPER_Q(13)
1025 NO_SUB_SUPER_Q(14)
1026 NO_SUB_SUPER_Q(15)
1027 NO_SUB_SUPER_Q(16)
1028 NO_SUB_SUPER_Q(17)
1029 NO_SUB_SUPER_Q(18)
1030 NO_SUB_SUPER_Q(19)
1031 NO_SUB_SUPER_Q(20)
1032 NO_SUB_SUPER_Q(21)
1033 NO_SUB_SUPER_Q(22)
1034 NO_SUB_SUPER_Q(23)
1035 NO_SUB_SUPER_Q(24)
1036 NO_SUB_SUPER_Q(25)
1037 NO_SUB_SUPER_Q(26)
1038 NO_SUB_SUPER_Q(27)
1039 NO_SUB_SUPER_Q(28)
1040 NO_SUB_SUPER_Q(29)
1041 NO_SUB_SUPER_Q(30)
1042 NO_SUB_SUPER_Q(31)
1043 }
1044 }
1045}
assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")
This file implements a class to represent arbitrary precision integral constant values and operations...
ReachingDefInfo & RDI
MachineBasicBlock MachineBasicBlock::iterator DebugLoc DL
#define X(NUM, ENUM, NAME)
Definition ELF.h:856
IRTranslator LLVM IR MI
static LVOptions Options
Definition LVOptions.cpp:25
#define I(x, y, z)
Definition MD5.cpp:57
#define T
uint64_t High
#define CH(x, y, z)
Definition SHA256.cpp:34
SI optimize exec mask operations pre RA
#define LLVM_C_ABI
LLVM_C_ABI is the export/visibility macro used to mark symbols declared in llvm-c as exported when bu...
Definition Visibility.h:40
static bool is64Bit(const char *name)
#define NO_SUB_SUPER_W(NO)
#define NO_SUB_SUPER_Q(NO)
static MCRelocationInfo * createX86MCRelocationInfo(const Triple &TheTriple, MCContext &Ctx)
static MCInstrInfo * createX86MCInstrInfo()
#define C_SUB_SUPER(R)
#define NO_SUB_SUPER_D(NO)
#define DEFAULT_NOREG
static MCRegisterInfo * createX86MCRegisterInfo(const Triple &TT)
#define SP_SUB_SUPER(R)
static void populateReservedIdentifiers(MCAsmInfo &MAI, const MCRegisterInfo &MRI)
static MCInstPrinter * createX86MCInstPrinter(const Triple &T, unsigned SyntaxVariant, const MCAsmInfo &MAI, const MCInstrInfo &MII, const MCRegisterInfo &MRI)
static MCInstrAnalysis * createX86MCInstrAnalysis(const MCInstrInfo *Info)
static MCLFIRewriter * createX86MCLFIRewriter(MCContext &Ctx, std::unique_ptr< MCRegisterInfo > &&RegInfo, std::unique_ptr< MCInstrInfo > &&InstInfo)
#define SI_SUB_SUPER(R)
#define BP_SUB_SUPER(R)
#define B_SUB_SUPER(R)
LLVM_C_ABI void LLVMInitializeX86TargetMC()
#define DI_SUB_SUPER(R)
#define NO_SUB_SUPER_B(NO)
#define A_SUB_SUPER(R)
#define D_SUB_SUPER(R)
static MCAsmInfo * createX86MCAsmInfo(const MCRegisterInfo &MRI, const Triple &TheTriple, const MCTargetOptions &Options)
static bool isMemOperand(const MCInst &MI, unsigned Op, unsigned RegClassID)
Class for arbitrary precision integers.
Definition APInt.h:78
Represent a constant reference to an array (0 or more elements consecutively in memory),...
Definition ArrayRef.h:40
size_t size() const
Get the array size.
Definition ArrayRef.h:141
const T * data() const
Definition ArrayRef.h:138
A container which contains a StringRef plus a precomputed hash.
This class is intended to be used as a base class for asm properties and features specific to the tar...
Definition MCAsmInfo.h:67
void addInitialFrameState(const MCCFIInstruction &Inst)
Definition MCAsmInfo.cpp:54
llvm::DenseSet< llvm::CachedHashStringRef > & getReservedIdentifiers()
Definition MCAsmInfo.h:499
unsigned getOutputAssemblerDialect() const
Definition MCAsmInfo.h:580
static MCCFIInstruction cfiDefCfa(MCSymbol *L, unsigned Register, int64_t Offset, SMLoc Loc={})
.cfi_def_cfa defines a rule for computing CFA as: take address from Register and add Offset to it.
Definition MCDwarf.h:628
static MCCFIInstruction createOffset(MCSymbol *L, unsigned Register, int64_t Offset, SMLoc Loc={})
.cfi_offset Previous value of Register is saved at offset Offset from CFA.
Definition MCDwarf.h:670
Context object for machine code objects.
Definition MCContext.h:83
This is an instance of a target assembly language printer that converts an MCInst to valid target ass...
Instances of this class represent a single low-level machine instruction.
Definition MCInst.h:188
unsigned getNumOperands() const
Definition MCInst.h:212
unsigned getOpcode() const
Definition MCInst.h:202
const MCOperand & getOperand(unsigned i) const
Definition MCInst.h:210
const MCInstrInfo * Info
MCInstrAnalysis(const MCInstrInfo *Info)
Describe properties that are true of each instruction in the target description file.
Interface to description of machine instruction set.
Definition MCInstrInfo.h:27
Instances of this class represent operands of the MCInst class.
Definition MCInst.h:40
int64_t getImm() const
Definition MCInst.h:84
bool isImm() const
Definition MCInst.h:66
MCRegister getReg() const
Returns the register number.
Definition MCInst.h:73
MCRegisterClass - Base class of TargetRegisterClass.
bool contains(MCRegister Reg) const
contains - Return true if the specified register is included in this register class.
MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...
void mapLLVMRegToCVReg(MCRegister LLVMReg, int CVReg)
uint16_t getEncodingValue(MCRegister Reg) const
Returns the encoding for Reg.
void mapLLVMRegToSEHReg(MCRegister LLVMReg, int SEHReg)
mapLLVMRegToSEHReg - Used to initialize LLVM register to SEH register number mapping.
const MCRegisterClass & getRegClass(unsigned i) const
Returns the register class associated with the enumeration value.
virtual int64_t getDwarfRegNum(MCRegister Reg, bool isEH) const
Map a target register to an equivalent dwarf register number.
unsigned getNumRegs() const
Return the number of registers this target has (useful for sizing arrays holding per register informa...
Wrapper class representing physical registers. Should be passed by value.
Definition MCRegister.h:41
Create MCExprs from relocations found in an object file.
Generic base class for all target subtargets.
bool hasFeature(unsigned Feature) const
const Triple & getTargetTriple() const
Represent a constant reference to a string, i.e.
Definition StringRef.h:56
Target - Wrapper for Target specific information.
Triple - Helper class for working with autoconf configuration names.
Definition Triple.h:48
bool isOSCygMing() const
Tests for either Cygwin or MinGW OS.
Definition Triple.h:817
bool isX86_64() const
Tests whether the target is x86 (64-bit).
Definition Triple.h:1203
bool isOSBinFormatMachO() const
Tests whether the environment is MachO.
Definition Triple.h:873
bool isWindowsCoreCLREnvironment() const
Definition Triple.h:800
ArchType getArch() const
Get the parsed architecture type of this triple.
Definition Triple.h:512
bool isUEFI() const
Tests whether the OS is UEFI.
Definition Triple.h:772
bool isOSBinFormatELF() const
Tests whether the OS uses the ELF binary format.
Definition Triple.h:864
bool isWindowsMSVCEnvironment() const
Checks if the environment could be MSVC.
Definition Triple.h:789
bool isWindowsItaniumEnvironment() const
Definition Triple.h:804
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition Twine.h:82
static const char * getRegisterName(MCRegister Reg)
bool evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size, uint64_t &Target) const override
Given a branch instruction try to get the address the branch targets.
X86MCInstrAnalysis(const MCInstrInfo *MCII)
std::optional< uint64_t > evaluateMemoryOperandAddress(const MCInst &Inst, const MCSubtargetInfo *STI, uint64_t Addr, uint64_t Size) const override
Given an instruction tries to get the address of a memory operand.
std::optional< uint64_t > getMemoryOperandRelocationOffset(const MCInst &Inst, uint64_t Size) const override
Given an instruction with a memory operand that could require relocation, returns the offset within t...
std::vector< std::pair< uint64_t, uint64_t > > findPltEntries(uint64_t PltSectionVA, ArrayRef< uint8_t > PltContents, const MCSubtargetInfo &STI) const override
Returns (PLT virtual address, GOT virtual address) pairs for PLT entries.
bool clearsSuperRegisters(const MCRegisterInfo &MRI, const MCInst &Inst, APInt &Mask) const override
Returns true if at least one of the register writes performed by.
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
int getMemoryOperandIdx(const MCInstrDesc &Desc)
@ RawFrmDstSrc
RawFrmDstSrc - This form is for instructions that use the source index register SI/ESI/RSI with a pos...
@ EVEX
EVEX - Specifies that this instruction use EVEX form which provides syntax support up to 32 512-bit r...
@ RawFrmDst
RawFrmDst - This form is for instructions that use the destination index register DI/EDI/RDI.
@ VEX
VEX - encoding using 0xC4/0xC5.
@ XOP
XOP - Opcode prefix used by XOP instructions.
@ RawFrmSrc
RawFrmSrc - This form is for instructions that use the source index register SI/ESI/RSI with a possib...
bool is32BitMemOperand(const MCInst &MI, unsigned Op)
bool is16BitMemOperand(const MCInst &MI, unsigned Op, const MCSubtargetInfo &STI)
bool hasLockPrefix(const MCInst &MI)
Returns true if this instruction has a LOCK prefix.
void initLLVMToSEHAndCVRegMapping(MCRegisterInfo *MRI)
static std::vector< std::pair< uint64_t, uint64_t > > findX86_64PltEntries(uint64_t PltSectionVA, ArrayRef< uint8_t > PltContents)
static std::vector< std::pair< uint64_t, uint64_t > > findX86PltEntries(uint64_t PltSectionVA, ArrayRef< uint8_t > PltContents)
bool needsAddressSizeOverride(const MCInst &MI, const MCSubtargetInfo &STI, int MemoryOperand, uint64_t TSFlags)
Returns true if this instruction needs an Address-Size override prefix.
std::string ParseX86Triple(const Triple &TT)
MCSubtargetInfo * createX86MCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS)
Create a X86 MCSubtargetInfo instance.
bool is64BitMemOperand(const MCInst &MI, unsigned Op)
unsigned getDwarfRegFlavour(const Triple &TT, bool isEH)
uint32_t read32le(const void *P)
Definition Endian.h:432
This is an optimization pass for GlobalISel generic memory operations.
MCTargetStreamer * createX86ObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI)
Implements X86-only directives for object files.
MCRegister getX86SubSuperRegister(MCRegister Reg, unsigned Size, bool High=false)
MCAsmBackend * createX86_64AsmBackend(const Target &T, const MCSubtargetInfo &STI, const MCRegisterInfo &MRI, const MCTargetOptions &Options)
MCTargetStreamer * createX86AsmTargetStreamer(MCStreamer &S, formatted_raw_ostream &OS, MCInstPrinter *InstPrinter)
Implements X86-only directives for assembly emission.
MCCodeEmitter * createX86MCCodeEmitter(const MCInstrInfo &MCII, MCContext &Ctx)
Target & getTheX86_32Target()
Op::Description Desc
LLVM_ABI MCRelocationInfo * createMCRelocationInfo(const Triple &TT, MCContext &Ctx)
MCStreamer * createX86ELFStreamer(const Triple &T, MCContext &Context, std::unique_ptr< MCAsmBackend > &&MAB, std::unique_ptr< MCObjectWriter > &&MOW, std::unique_ptr< MCCodeEmitter > &&MCE)
MCStreamer * createX86WinCOFFStreamer(MCContext &C, std::unique_ptr< MCAsmBackend > &&AB, std::unique_ptr< MCObjectWriter > &&OW, std::unique_ptr< MCCodeEmitter > &&CE)
Construct an X86 Windows COFF machine code streamer which will generate PE/COFF format object files.
uint16_t MCPhysReg
An unsigned integer type large enough to represent all physical registers, but not necessarily virtua...
Definition MCRegister.h:21
DWARFExpression::Operation Op
MCAsmBackend * createX86_32AsmBackend(const Target &T, const MCSubtargetInfo &STI, const MCRegisterInfo &MRI, const MCTargetOptions &Options)
Target & getTheX86_64Target()
MCTargetStreamer * createX86NullTargetStreamer(MCStreamer &S)
Implements X86-only null emission.
RegisterMCAsmInfoFn - Helper template for registering a target assembly info implementation.
static void RegisterMCRegInfo(Target &T, Target::MCRegInfoCtorFnTy Fn)
RegisterMCRegInfo - Register a MCRegisterInfo implementation for the given target.
static void RegisterMCAsmBackend(Target &T, Target::MCAsmBackendCtorTy Fn)
RegisterMCAsmBackend - Register a MCAsmBackend implementation for the given target.
static void RegisterMCCodeEmitter(Target &T, Target::MCCodeEmitterCtorTy Fn)
RegisterMCCodeEmitter - Register a MCCodeEmitter implementation for the given target.
static void RegisterMCSubtargetInfo(Target &T, Target::MCSubtargetInfoCtorFnTy Fn)
RegisterMCSubtargetInfo - Register a MCSubtargetInfo implementation for the given target.
static void RegisterObjectTargetStreamer(Target &T, Target::ObjectTargetStreamerCtorTy Fn)
static void RegisterMCInstrAnalysis(Target &T, Target::MCInstrAnalysisCtorFnTy Fn)
RegisterMCInstrAnalysis - Register a MCInstrAnalysis implementation for the given target.
static void RegisterELFStreamer(Target &T, Target::ELFStreamerCtorTy Fn)
static void RegisterNullTargetStreamer(Target &T, Target::NullTargetStreamerCtorTy Fn)
static void RegisterMCLFIRewriter(Target &T, Target::MCLFIRewriterCtorTy Fn)
static void RegisterMCInstPrinter(Target &T, Target::MCInstPrinterCtorTy Fn)
RegisterMCInstPrinter - Register a MCInstPrinter implementation for the given target.
static void RegisterCOFFStreamer(Target &T, Target::COFFStreamerCtorTy Fn)
static void RegisterMCInstrInfo(Target &T, Target::MCInstrInfoCtorFnTy Fn)
RegisterMCInstrInfo - Register a MCInstrInfo implementation for the given target.
static void RegisterAsmTargetStreamer(Target &T, Target::AsmTargetStreamerCtorTy Fn)
static void RegisterMCRelocationInfo(Target &T, Target::MCRelocationInfoCtorTy Fn)
RegisterMCRelocationInfo - Register an MCRelocationInfo implementation for the given target.