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 "X86MCOptions.h"
21#include "X86TargetStreamer.h"
22#include "llvm-c/Visibility.h"
23#include "llvm/ADT/APInt.h"
25#include "llvm/MC/MCDwarf.h"
27#include "llvm/MC/MCInstrInfo.h"
29#include "llvm/MC/MCStreamer.h"
36
37using namespace llvm;
38
39#define GET_REGINFO_MC_DESC
40#include "X86GenRegisterInfo.inc"
41
42#define GET_INSTRINFO_MC_DESC
43#define GET_INSTRINFO_MC_HELPERS
44#define ENABLE_INSTR_PREDICATE_VERIFIER
45#include "X86GenInstrInfo.inc"
46
47#define GET_SUBTARGETINFO_MC_DESC
48#include "X86GenSubtargetInfo.inc"
49
50#define OPTIONS_STRUCT_DEFS
51#include "X86MCOptions.inc"
52
53std::string X86_MC::ParseX86Triple(const Triple &TT) {
54 std::string FS;
55 // SSE2 should default to enabled in 64-bit mode, but can be turned off
56 // explicitly.
57 if (TT.isX86_64())
58 FS = "+64bit-mode,-32bit-mode,-16bit-mode,+sse2";
59 else if (TT.getEnvironment() != Triple::CODE16)
60 FS = "-64bit-mode,+32bit-mode,-16bit-mode";
61 else
62 FS = "-64bit-mode,-32bit-mode,+16bit-mode";
63
64 if (TT.isX32())
65 FS += ",+x32";
66
67 return FS;
68}
69
70unsigned X86_MC::getDwarfRegFlavour(const Triple &TT, bool isEH) {
71 if (TT.isX86_64())
73
74 if (TT.isOSDarwin())
76 if (TT.isOSCygMing())
77 // Unsupported by now, just quick fallback
80}
81
83 return MI.getFlags() & X86::IP_HAS_LOCK;
84}
85
86static bool isMemOperand(const MCInst &MI, unsigned Op, unsigned RegClassID) {
87 const MCOperand &Base = MI.getOperand(Op + X86::AddrBaseReg);
88 const MCOperand &Index = MI.getOperand(Op + X86::AddrIndexReg);
89 const MCRegisterClass &RC = getX86MCRegisterClass(RegClassID);
90
91 return (Base.isReg() && Base.getReg() && RC.contains(Base.getReg())) ||
92 (Index.isReg() && Index.getReg() && RC.contains(Index.getReg()));
93}
94
95bool X86_MC::is16BitMemOperand(const MCInst &MI, unsigned Op,
96 const MCSubtargetInfo &STI) {
97 const MCOperand &Base = MI.getOperand(Op + X86::AddrBaseReg);
98 const MCOperand &Index = MI.getOperand(Op + X86::AddrIndexReg);
99
100 if (STI.hasFeature(X86::Is16Bit) && Base.isReg() && !Base.getReg() &&
101 Index.isReg() && !Index.getReg())
102 return true;
103 return isMemOperand(MI, Op, X86::GR16RegClassID);
104}
105
106bool X86_MC::is32BitMemOperand(const MCInst &MI, unsigned Op) {
107 const MCOperand &Base = MI.getOperand(Op + X86::AddrBaseReg);
108 const MCOperand &Index = MI.getOperand(Op + X86::AddrIndexReg);
109 if (Base.isReg() && Base.getReg() == X86::EIP) {
110 assert(Index.isReg() && !Index.getReg() && "Invalid eip-based address");
111 return true;
112 }
113 if (Index.isReg() && Index.getReg() == X86::EIZ)
114 return true;
115 return isMemOperand(MI, Op, X86::GR32RegClassID);
116}
117
118#ifndef NDEBUG
119bool X86_MC::is64BitMemOperand(const MCInst &MI, unsigned Op) {
120 return isMemOperand(MI, Op, X86::GR64RegClassID);
121}
122#endif
123
125 const MCSubtargetInfo &STI,
126 int MemoryOperand, uint64_t TSFlags) {
127 uint64_t AdSize = TSFlags & X86II::AdSizeMask;
128 bool Is16BitMode = STI.hasFeature(X86::Is16Bit);
129 bool Is32BitMode = STI.hasFeature(X86::Is32Bit);
130 bool Is64BitMode = STI.hasFeature(X86::Is64Bit);
131 if ((Is16BitMode && AdSize == X86II::AdSize32) ||
132 (Is32BitMode && AdSize == X86II::AdSize16) ||
133 (Is64BitMode && AdSize == X86II::AdSize32))
134 return true;
135 uint64_t Form = TSFlags & X86II::FormMask;
136 switch (Form) {
137 default:
138 break;
139 case X86II::RawFrmDstSrc: {
140 MCRegister siReg = MI.getOperand(1).getReg();
141 assert(((siReg == X86::SI && MI.getOperand(0).getReg() == X86::DI) ||
142 (siReg == X86::ESI && MI.getOperand(0).getReg() == X86::EDI) ||
143 (siReg == X86::RSI && MI.getOperand(0).getReg() == X86::RDI)) &&
144 "SI and DI register sizes do not match");
145 return (!Is32BitMode && siReg == X86::ESI) ||
146 (Is32BitMode && siReg == X86::SI);
147 }
148 case X86II::RawFrmSrc: {
149 MCRegister siReg = MI.getOperand(0).getReg();
150 return (!Is32BitMode && siReg == X86::ESI) ||
151 (Is32BitMode && siReg == X86::SI);
152 }
153 case X86II::RawFrmDst: {
154 MCRegister siReg = MI.getOperand(0).getReg();
155 return (!Is32BitMode && siReg == X86::EDI) ||
156 (Is32BitMode && siReg == X86::DI);
157 }
158 }
159
160 // Determine where the memory operand starts, if present.
161 if (MemoryOperand < 0)
162 return false;
163
164 if (STI.hasFeature(X86::Is64Bit)) {
165 assert(!is16BitMemOperand(MI, MemoryOperand, STI));
166 return is32BitMemOperand(MI, MemoryOperand);
167 }
168 if (STI.hasFeature(X86::Is32Bit)) {
169 assert(!is64BitMemOperand(MI, MemoryOperand));
170 return is16BitMemOperand(MI, MemoryOperand, STI);
171 }
172 assert(STI.hasFeature(X86::Is16Bit));
173 assert(!is64BitMemOperand(MI, MemoryOperand));
174 return !is16BitMemOperand(MI, MemoryOperand, STI);
175}
176
178 // FIXME: TableGen these.
179 for (unsigned Reg = X86::NoRegister + 1; Reg < X86::NUM_TARGET_REGS; ++Reg) {
180 unsigned SEH = MRI->getEncodingValue(Reg);
181 MRI->mapLLVMRegToSEHReg(Reg, SEH);
182 }
183
184 // Mapping from CodeView to MC register id.
185 static const struct {
187 MCPhysReg Reg;
188 } RegMap[] = {
189 {codeview::RegisterId::AL, X86::AL},
190 {codeview::RegisterId::CL, X86::CL},
191 {codeview::RegisterId::DL, X86::DL},
192 {codeview::RegisterId::BL, X86::BL},
193 {codeview::RegisterId::AH, X86::AH},
194 {codeview::RegisterId::CH, X86::CH},
195 {codeview::RegisterId::DH, X86::DH},
196 {codeview::RegisterId::BH, X86::BH},
197 {codeview::RegisterId::AX, X86::AX},
198 {codeview::RegisterId::CX, X86::CX},
199 {codeview::RegisterId::DX, X86::DX},
200 {codeview::RegisterId::BX, X86::BX},
201 {codeview::RegisterId::SP, X86::SP},
202 {codeview::RegisterId::BP, X86::BP},
203 {codeview::RegisterId::SI, X86::SI},
204 {codeview::RegisterId::DI, X86::DI},
205 {codeview::RegisterId::EAX, X86::EAX},
206 {codeview::RegisterId::ECX, X86::ECX},
207 {codeview::RegisterId::EDX, X86::EDX},
208 {codeview::RegisterId::EBX, X86::EBX},
209 {codeview::RegisterId::ESP, X86::ESP},
210 {codeview::RegisterId::EBP, X86::EBP},
211 {codeview::RegisterId::ESI, X86::ESI},
212 {codeview::RegisterId::EDI, X86::EDI},
213
214 {codeview::RegisterId::EFLAGS, X86::EFLAGS},
215
216 {codeview::RegisterId::ST0, X86::ST0},
217 {codeview::RegisterId::ST1, X86::ST1},
218 {codeview::RegisterId::ST2, X86::ST2},
219 {codeview::RegisterId::ST3, X86::ST3},
220 {codeview::RegisterId::ST4, X86::ST4},
221 {codeview::RegisterId::ST5, X86::ST5},
222 {codeview::RegisterId::ST6, X86::ST6},
223 {codeview::RegisterId::ST7, X86::ST7},
224
225 {codeview::RegisterId::ST0, X86::FP0},
226 {codeview::RegisterId::ST1, X86::FP1},
227 {codeview::RegisterId::ST2, X86::FP2},
228 {codeview::RegisterId::ST3, X86::FP3},
229 {codeview::RegisterId::ST4, X86::FP4},
230 {codeview::RegisterId::ST5, X86::FP5},
231 {codeview::RegisterId::ST6, X86::FP6},
232 {codeview::RegisterId::ST7, X86::FP7},
233
234 {codeview::RegisterId::MM0, X86::MM0},
235 {codeview::RegisterId::MM1, X86::MM1},
236 {codeview::RegisterId::MM2, X86::MM2},
237 {codeview::RegisterId::MM3, X86::MM3},
238 {codeview::RegisterId::MM4, X86::MM4},
239 {codeview::RegisterId::MM5, X86::MM5},
240 {codeview::RegisterId::MM6, X86::MM6},
241 {codeview::RegisterId::MM7, X86::MM7},
242
243 {codeview::RegisterId::XMM0, X86::XMM0},
244 {codeview::RegisterId::XMM1, X86::XMM1},
245 {codeview::RegisterId::XMM2, X86::XMM2},
246 {codeview::RegisterId::XMM3, X86::XMM3},
247 {codeview::RegisterId::XMM4, X86::XMM4},
248 {codeview::RegisterId::XMM5, X86::XMM5},
249 {codeview::RegisterId::XMM6, X86::XMM6},
250 {codeview::RegisterId::XMM7, X86::XMM7},
251
252 {codeview::RegisterId::XMM8, X86::XMM8},
253 {codeview::RegisterId::XMM9, X86::XMM9},
254 {codeview::RegisterId::XMM10, X86::XMM10},
255 {codeview::RegisterId::XMM11, X86::XMM11},
256 {codeview::RegisterId::XMM12, X86::XMM12},
257 {codeview::RegisterId::XMM13, X86::XMM13},
258 {codeview::RegisterId::XMM14, X86::XMM14},
259 {codeview::RegisterId::XMM15, X86::XMM15},
260
261 {codeview::RegisterId::SIL, X86::SIL},
262 {codeview::RegisterId::DIL, X86::DIL},
263 {codeview::RegisterId::BPL, X86::BPL},
264 {codeview::RegisterId::SPL, X86::SPL},
265 {codeview::RegisterId::RAX, X86::RAX},
266 {codeview::RegisterId::RBX, X86::RBX},
267 {codeview::RegisterId::RCX, X86::RCX},
268 {codeview::RegisterId::RDX, X86::RDX},
269 {codeview::RegisterId::RSI, X86::RSI},
270 {codeview::RegisterId::RDI, X86::RDI},
271 {codeview::RegisterId::RBP, X86::RBP},
272 {codeview::RegisterId::RSP, X86::RSP},
273 {codeview::RegisterId::R8, X86::R8},
274 {codeview::RegisterId::R9, X86::R9},
275 {codeview::RegisterId::R10, X86::R10},
276 {codeview::RegisterId::R11, X86::R11},
277 {codeview::RegisterId::R12, X86::R12},
278 {codeview::RegisterId::R13, X86::R13},
279 {codeview::RegisterId::R14, X86::R14},
280 {codeview::RegisterId::R15, X86::R15},
281 {codeview::RegisterId::R16, X86::R16},
282 {codeview::RegisterId::R17, X86::R17},
283 {codeview::RegisterId::R18, X86::R18},
284 {codeview::RegisterId::R19, X86::R19},
285 {codeview::RegisterId::R20, X86::R20},
286 {codeview::RegisterId::R21, X86::R21},
287 {codeview::RegisterId::R22, X86::R22},
288 {codeview::RegisterId::R23, X86::R23},
289 {codeview::RegisterId::R24, X86::R24},
290 {codeview::RegisterId::R25, X86::R25},
291 {codeview::RegisterId::R26, X86::R26},
292 {codeview::RegisterId::R27, X86::R27},
293 {codeview::RegisterId::R28, X86::R28},
294 {codeview::RegisterId::R29, X86::R29},
295 {codeview::RegisterId::R30, X86::R30},
296 {codeview::RegisterId::R31, X86::R31},
297 {codeview::RegisterId::R8B, X86::R8B},
298 {codeview::RegisterId::R9B, X86::R9B},
299 {codeview::RegisterId::R10B, X86::R10B},
300 {codeview::RegisterId::R11B, X86::R11B},
301 {codeview::RegisterId::R12B, X86::R12B},
302 {codeview::RegisterId::R13B, X86::R13B},
303 {codeview::RegisterId::R14B, X86::R14B},
304 {codeview::RegisterId::R15B, X86::R15B},
305 {codeview::RegisterId::R16B, X86::R16B},
306 {codeview::RegisterId::R17B, X86::R17B},
307 {codeview::RegisterId::R18B, X86::R18B},
308 {codeview::RegisterId::R19B, X86::R19B},
309 {codeview::RegisterId::R20B, X86::R20B},
310 {codeview::RegisterId::R21B, X86::R21B},
311 {codeview::RegisterId::R22B, X86::R22B},
312 {codeview::RegisterId::R23B, X86::R23B},
313 {codeview::RegisterId::R24B, X86::R24B},
314 {codeview::RegisterId::R25B, X86::R25B},
315 {codeview::RegisterId::R26B, X86::R26B},
316 {codeview::RegisterId::R27B, X86::R27B},
317 {codeview::RegisterId::R28B, X86::R28B},
318 {codeview::RegisterId::R29B, X86::R29B},
319 {codeview::RegisterId::R30B, X86::R30B},
320 {codeview::RegisterId::R31B, X86::R31B},
321 {codeview::RegisterId::R8W, X86::R8W},
322 {codeview::RegisterId::R9W, X86::R9W},
323 {codeview::RegisterId::R10W, X86::R10W},
324 {codeview::RegisterId::R11W, X86::R11W},
325 {codeview::RegisterId::R12W, X86::R12W},
326 {codeview::RegisterId::R13W, X86::R13W},
327 {codeview::RegisterId::R14W, X86::R14W},
328 {codeview::RegisterId::R15W, X86::R15W},
329 {codeview::RegisterId::R16W, X86::R16W},
330 {codeview::RegisterId::R17W, X86::R17W},
331 {codeview::RegisterId::R18W, X86::R18W},
332 {codeview::RegisterId::R19W, X86::R19W},
333 {codeview::RegisterId::R20W, X86::R20W},
334 {codeview::RegisterId::R21W, X86::R21W},
335 {codeview::RegisterId::R22W, X86::R22W},
336 {codeview::RegisterId::R23W, X86::R23W},
337 {codeview::RegisterId::R24W, X86::R24W},
338 {codeview::RegisterId::R25W, X86::R25W},
339 {codeview::RegisterId::R26W, X86::R26W},
340 {codeview::RegisterId::R27W, X86::R27W},
341 {codeview::RegisterId::R28W, X86::R28W},
342 {codeview::RegisterId::R29W, X86::R29W},
343 {codeview::RegisterId::R30W, X86::R30W},
344 {codeview::RegisterId::R31W, X86::R31W},
345 {codeview::RegisterId::R8D, X86::R8D},
346 {codeview::RegisterId::R9D, X86::R9D},
347 {codeview::RegisterId::R10D, X86::R10D},
348 {codeview::RegisterId::R11D, X86::R11D},
349 {codeview::RegisterId::R12D, X86::R12D},
350 {codeview::RegisterId::R13D, X86::R13D},
351 {codeview::RegisterId::R14D, X86::R14D},
352 {codeview::RegisterId::R15D, X86::R15D},
353 {codeview::RegisterId::R16D, X86::R16D},
354 {codeview::RegisterId::R17D, X86::R17D},
355 {codeview::RegisterId::R18D, X86::R18D},
356 {codeview::RegisterId::R19D, X86::R19D},
357 {codeview::RegisterId::R20D, X86::R20D},
358 {codeview::RegisterId::R21D, X86::R21D},
359 {codeview::RegisterId::R22D, X86::R22D},
360 {codeview::RegisterId::R23D, X86::R23D},
361 {codeview::RegisterId::R24D, X86::R24D},
362 {codeview::RegisterId::R25D, X86::R25D},
363 {codeview::RegisterId::R26D, X86::R26D},
364 {codeview::RegisterId::R27D, X86::R27D},
365 {codeview::RegisterId::R28D, X86::R28D},
366 {codeview::RegisterId::R29D, X86::R29D},
367 {codeview::RegisterId::R30D, X86::R30D},
368 {codeview::RegisterId::R31D, X86::R31D},
369 {codeview::RegisterId::AMD64_YMM0, X86::YMM0},
370 {codeview::RegisterId::AMD64_YMM1, X86::YMM1},
371 {codeview::RegisterId::AMD64_YMM2, X86::YMM2},
372 {codeview::RegisterId::AMD64_YMM3, X86::YMM3},
373 {codeview::RegisterId::AMD64_YMM4, X86::YMM4},
374 {codeview::RegisterId::AMD64_YMM5, X86::YMM5},
375 {codeview::RegisterId::AMD64_YMM6, X86::YMM6},
376 {codeview::RegisterId::AMD64_YMM7, X86::YMM7},
377 {codeview::RegisterId::AMD64_YMM8, X86::YMM8},
378 {codeview::RegisterId::AMD64_YMM9, X86::YMM9},
379 {codeview::RegisterId::AMD64_YMM10, X86::YMM10},
380 {codeview::RegisterId::AMD64_YMM11, X86::YMM11},
381 {codeview::RegisterId::AMD64_YMM12, X86::YMM12},
382 {codeview::RegisterId::AMD64_YMM13, X86::YMM13},
383 {codeview::RegisterId::AMD64_YMM14, X86::YMM14},
384 {codeview::RegisterId::AMD64_YMM15, X86::YMM15},
385 {codeview::RegisterId::AMD64_YMM16, X86::YMM16},
386 {codeview::RegisterId::AMD64_YMM17, X86::YMM17},
387 {codeview::RegisterId::AMD64_YMM18, X86::YMM18},
388 {codeview::RegisterId::AMD64_YMM19, X86::YMM19},
389 {codeview::RegisterId::AMD64_YMM20, X86::YMM20},
390 {codeview::RegisterId::AMD64_YMM21, X86::YMM21},
391 {codeview::RegisterId::AMD64_YMM22, X86::YMM22},
392 {codeview::RegisterId::AMD64_YMM23, X86::YMM23},
393 {codeview::RegisterId::AMD64_YMM24, X86::YMM24},
394 {codeview::RegisterId::AMD64_YMM25, X86::YMM25},
395 {codeview::RegisterId::AMD64_YMM26, X86::YMM26},
396 {codeview::RegisterId::AMD64_YMM27, X86::YMM27},
397 {codeview::RegisterId::AMD64_YMM28, X86::YMM28},
398 {codeview::RegisterId::AMD64_YMM29, X86::YMM29},
399 {codeview::RegisterId::AMD64_YMM30, X86::YMM30},
400 {codeview::RegisterId::AMD64_YMM31, X86::YMM31},
401 {codeview::RegisterId::AMD64_ZMM0, X86::ZMM0},
402 {codeview::RegisterId::AMD64_ZMM1, X86::ZMM1},
403 {codeview::RegisterId::AMD64_ZMM2, X86::ZMM2},
404 {codeview::RegisterId::AMD64_ZMM3, X86::ZMM3},
405 {codeview::RegisterId::AMD64_ZMM4, X86::ZMM4},
406 {codeview::RegisterId::AMD64_ZMM5, X86::ZMM5},
407 {codeview::RegisterId::AMD64_ZMM6, X86::ZMM6},
408 {codeview::RegisterId::AMD64_ZMM7, X86::ZMM7},
409 {codeview::RegisterId::AMD64_ZMM8, X86::ZMM8},
410 {codeview::RegisterId::AMD64_ZMM9, X86::ZMM9},
411 {codeview::RegisterId::AMD64_ZMM10, X86::ZMM10},
412 {codeview::RegisterId::AMD64_ZMM11, X86::ZMM11},
413 {codeview::RegisterId::AMD64_ZMM12, X86::ZMM12},
414 {codeview::RegisterId::AMD64_ZMM13, X86::ZMM13},
415 {codeview::RegisterId::AMD64_ZMM14, X86::ZMM14},
416 {codeview::RegisterId::AMD64_ZMM15, X86::ZMM15},
417 {codeview::RegisterId::AMD64_ZMM16, X86::ZMM16},
418 {codeview::RegisterId::AMD64_ZMM17, X86::ZMM17},
419 {codeview::RegisterId::AMD64_ZMM18, X86::ZMM18},
420 {codeview::RegisterId::AMD64_ZMM19, X86::ZMM19},
421 {codeview::RegisterId::AMD64_ZMM20, X86::ZMM20},
422 {codeview::RegisterId::AMD64_ZMM21, X86::ZMM21},
423 {codeview::RegisterId::AMD64_ZMM22, X86::ZMM22},
424 {codeview::RegisterId::AMD64_ZMM23, X86::ZMM23},
425 {codeview::RegisterId::AMD64_ZMM24, X86::ZMM24},
426 {codeview::RegisterId::AMD64_ZMM25, X86::ZMM25},
427 {codeview::RegisterId::AMD64_ZMM26, X86::ZMM26},
428 {codeview::RegisterId::AMD64_ZMM27, X86::ZMM27},
429 {codeview::RegisterId::AMD64_ZMM28, X86::ZMM28},
430 {codeview::RegisterId::AMD64_ZMM29, X86::ZMM29},
431 {codeview::RegisterId::AMD64_ZMM30, X86::ZMM30},
432 {codeview::RegisterId::AMD64_ZMM31, X86::ZMM31},
433 {codeview::RegisterId::AMD64_K0, X86::K0},
434 {codeview::RegisterId::AMD64_K1, X86::K1},
435 {codeview::RegisterId::AMD64_K2, X86::K2},
436 {codeview::RegisterId::AMD64_K3, X86::K3},
437 {codeview::RegisterId::AMD64_K4, X86::K4},
438 {codeview::RegisterId::AMD64_K5, X86::K5},
439 {codeview::RegisterId::AMD64_K6, X86::K6},
440 {codeview::RegisterId::AMD64_K7, X86::K7},
441 {codeview::RegisterId::AMD64_XMM16, X86::XMM16},
442 {codeview::RegisterId::AMD64_XMM17, X86::XMM17},
443 {codeview::RegisterId::AMD64_XMM18, X86::XMM18},
444 {codeview::RegisterId::AMD64_XMM19, X86::XMM19},
445 {codeview::RegisterId::AMD64_XMM20, X86::XMM20},
446 {codeview::RegisterId::AMD64_XMM21, X86::XMM21},
447 {codeview::RegisterId::AMD64_XMM22, X86::XMM22},
448 {codeview::RegisterId::AMD64_XMM23, X86::XMM23},
449 {codeview::RegisterId::AMD64_XMM24, X86::XMM24},
450 {codeview::RegisterId::AMD64_XMM25, X86::XMM25},
451 {codeview::RegisterId::AMD64_XMM26, X86::XMM26},
452 {codeview::RegisterId::AMD64_XMM27, X86::XMM27},
453 {codeview::RegisterId::AMD64_XMM28, X86::XMM28},
454 {codeview::RegisterId::AMD64_XMM29, X86::XMM29},
455 {codeview::RegisterId::AMD64_XMM30, X86::XMM30},
456 {codeview::RegisterId::AMD64_XMM31, X86::XMM31},
457
458 };
459 for (const auto &I : RegMap)
460 MRI->mapLLVMRegToCVReg(I.Reg, static_cast<int>(I.CVReg));
461}
462
464 StringRef CPU, StringRef FS) {
465 std::string ArchFS = X86_MC::ParseX86Triple(TT);
466 assert(!ArchFS.empty() && "Failed to parse X86 triple");
467 if (!FS.empty())
468 ArchFS = (Twine(ArchFS) + "," + FS).str();
469
470 if (CPU.empty())
471 CPU = "generic";
472
473 return createX86MCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, ArchFS);
474}
475
477 MCInstrInfo *X = new MCInstrInfo();
478 InitX86MCInstrInfo(X);
479 return X;
480}
481
483 unsigned RA = TT.isX86_64() ? X86::RIP // Should have dwarf #16.
484 : X86::EIP; // Should have dwarf #8.
485
487 InitX86MCRegisterInfo(X, RA, X86_MC::getDwarfRegFlavour(TT, false),
488 X86_MC::getDwarfRegFlavour(TT, true), RA);
490 return X;
491}
492
494 const MCRegisterInfo &MRI) {
495 auto &Set = MAI.getReservedIdentifiers();
496 // Register names: `call rsi` is misassembled as an indirect call. Use the
497 // Intel printer's table directly — it's the lowercase asm name in stable
498 // storage. MRI::getName() returns the uppercase enum name and would need
499 // an extra .lower() heap allocation per entry.
500 for (unsigned i = 1, e = MRI.getNumRegs(); i < e; ++i)
501 if (const char *Name = X86IntelInstPrinter::getRegisterName(i))
502 if (Name[0])
503 Set.insert(CachedHashStringRef(Name));
504 // Keywords that GAS Intel syntax misparses as constants, modifiers, or
505 // pseudo-registers instead of symbol references (e.g., `call byte` calls
506 // address 1, not symbol "byte"; `call flat` errors out).
507 for (StringRef KW : {"byte", "word", "dword", "fword", "qword", "mmword",
508 "tbyte", "oword", "xmmword", "ymmword", "zmmword",
509 "offset", "flat", "near", "far", "short"})
510 Set.insert(CachedHashStringRef(KW));
511 // Operator keywords parsed by GAS/X86AsmParser in Intel mode.
512 for (StringRef KW : {"and", "eq", "ge", "gt", "le", "lt", "mod", "ne", "not",
513 "or", "shl", "shr", "xor"})
514 Set.insert(CachedHashStringRef(KW));
515}
516
518 const Triple &TheTriple,
519 const MCTargetOptions &Options) {
520 bool is64Bit = TheTriple.isX86_64();
521
522 MCAsmInfo *MAI;
523 if (TheTriple.isOSBinFormatMachO()) {
524 if (is64Bit)
525 MAI = new X86_64MCAsmInfoDarwin(TheTriple, Options);
526 else
527 MAI = new X86MCAsmInfoDarwin(TheTriple, Options);
528 } else if (TheTriple.isOSBinFormatELF()) {
529 // Force the use of an ELF container.
530 MAI = new X86ELFMCAsmInfo(TheTriple, Options);
531 } else if (TheTriple.isWindowsMSVCEnvironment() ||
532 TheTriple.isWindowsCoreCLREnvironment() || TheTriple.isUEFI()) {
533 if (Options.getAssemblyLanguage().equals_insensitive("masm"))
534 MAI = new X86MCAsmInfoMicrosoftMASM(TheTriple, Options);
535 else
536 MAI = new X86MCAsmInfoMicrosoft(TheTriple, Options);
537 } else if (TheTriple.isOSCygMing() ||
538 TheTriple.isWindowsItaniumEnvironment()) {
539 MAI = new X86MCAsmInfoGNUCOFF(TheTriple, Options);
540 } else {
541 // The default is ELF.
542 MAI = new X86ELFMCAsmInfo(TheTriple, Options);
543 }
544
545 // Only Intel-syntax output needs to avoid register/keyword collisions; AT&T
546 // disambiguates registers with '%' and doesn't treat `byte`, `ptr`, etc. as
547 // keywords.
548 if (MAI->getOutputAssemblerDialect() != 0)
550
551 // Initialize initial frame state.
552 // Calculate amount of bytes used for return address storing
553 int stackGrowth = is64Bit ? -8 : -4;
554
555 // Initial state of the frame pointer is esp+stackGrowth.
556 unsigned StackPtr = is64Bit ? X86::RSP : X86::ESP;
558 nullptr, MRI.getDwarfRegNum(StackPtr, true), -stackGrowth);
559 MAI->addInitialFrameState(Inst);
560
561 // Add return address to move list
562 unsigned InstPtr = is64Bit ? X86::RIP : X86::EIP;
564 nullptr, MRI.getDwarfRegNum(InstPtr, true), stackGrowth);
565 MAI->addInitialFrameState(Inst2);
566
567 return MAI;
568}
569
571 unsigned SyntaxVariant,
572 const MCAsmInfo &MAI,
573 const MCInstrInfo &MII,
574 const MCRegisterInfo &MRI) {
575 if (SyntaxVariant == 0)
576 return new X86ATTInstPrinter(MAI, MII, MRI);
577 if (SyntaxVariant == 1)
578 return new X86IntelInstPrinter(MAI, MII, MRI);
579 return nullptr;
580}
581
583 MCContext &Ctx) {
584 // Default to the stock relocation info.
585 return llvm::createMCRelocationInfo(TheTriple, Ctx);
586}
587
588namespace llvm {
589namespace X86_MC {
590
591class X86MCInstrAnalysis : public MCInstrAnalysis {
592 X86MCInstrAnalysis(const X86MCInstrAnalysis &) = delete;
593 X86MCInstrAnalysis &operator=(const X86MCInstrAnalysis &) = delete;
594 ~X86MCInstrAnalysis() override = default;
595
596public:
598
599#define GET_STIPREDICATE_DECLS_FOR_MC_ANALYSIS
600#include "X86GenSubtargetInfo.inc"
601
602 bool clearsSuperRegisters(const MCRegisterInfo &MRI, const MCInst &Inst,
603 APInt &Mask) const override;
604 std::vector<std::pair<uint64_t, uint64_t>>
605 findPltEntries(uint64_t PltSectionVA, ArrayRef<uint8_t> PltContents,
606 const MCSubtargetInfo &STI) const override;
607
608 bool evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size,
609 uint64_t &Target) const override;
610 std::optional<uint64_t>
612 uint64_t Addr, uint64_t Size) const override;
613 std::optional<uint64_t>
615 uint64_t Size) const override;
616};
617
618#define GET_STIPREDICATE_DEFS_FOR_MC_ANALYSIS
619#include "X86GenSubtargetInfo.inc"
620
622 const MCInst &Inst,
623 APInt &Mask) const {
624 const MCInstrDesc &Desc = Info->get(Inst.getOpcode());
625 unsigned NumDefs = Desc.getNumDefs();
626 unsigned NumImplicitDefs = Desc.implicit_defs().size();
627 assert(Mask.getBitWidth() == NumDefs + NumImplicitDefs &&
628 "Unexpected number of bits in the mask!");
629
630 bool HasVEX = (Desc.TSFlags & X86II::EncodingMask) == X86II::VEX;
631 bool HasEVEX = (Desc.TSFlags & X86II::EncodingMask) == X86II::EVEX;
632 bool HasXOP = (Desc.TSFlags & X86II::EncodingMask) == X86II::XOP;
633
634 const MCRegisterClass &GR32RC = MRI.getRegClass(X86::GR32RegClassID);
635 const MCRegisterClass &VR128XRC = MRI.getRegClass(X86::VR128XRegClassID);
636 const MCRegisterClass &VR256XRC = MRI.getRegClass(X86::VR256XRegClassID);
637
638 auto ClearsSuperReg = [&](MCRegister RegID) {
639 // On X86-64, a general purpose integer register is viewed as a 64-bit
640 // register internal to the processor.
641 // An update to the lower 32 bits of a 64 bit integer register is
642 // architecturally defined to zero extend the upper 32 bits.
643 if (GR32RC.contains(RegID))
644 return true;
645
646 // Early exit if this instruction has no vex/evex/xop prefix.
647 if (!HasEVEX && !HasVEX && !HasXOP)
648 return false;
649
650 // All VEX and EVEX encoded instructions are defined to zero the high bits
651 // of the destination register up to VLMAX (i.e. the maximum vector register
652 // width pertaining to the instruction).
653 // We assume the same behavior for XOP instructions too.
654 return VR128XRC.contains(RegID) || VR256XRC.contains(RegID);
655 };
656
657 Mask.clearAllBits();
658 for (unsigned I = 0, E = NumDefs; I < E; ++I) {
659 const MCOperand &Op = Inst.getOperand(I);
660 if (ClearsSuperReg(Op.getReg()))
661 Mask.setBit(I);
662 }
663
664 for (unsigned I = 0, E = NumImplicitDefs; I < E; ++I) {
665 const MCPhysReg Reg = Desc.implicit_defs()[I];
666 if (ClearsSuperReg(Reg))
667 Mask.setBit(NumDefs + I);
668 }
669
670 return Mask.getBoolValue();
671}
672
673static std::vector<std::pair<uint64_t, uint64_t>>
674findX86PltEntries(uint64_t PltSectionVA, ArrayRef<uint8_t> PltContents) {
675 // Do a lightweight parsing of PLT entries.
676 std::vector<std::pair<uint64_t, uint64_t>> Result;
677 for (uint64_t Byte = 0, End = PltContents.size(); Byte + 6 < End; ) {
678 // Recognize a jmp.
679 if (PltContents[Byte] == 0xff && PltContents[Byte + 1] == 0xa3) {
680 // The jmp instruction at the beginning of each PLT entry jumps to the
681 // address of the base of the .got.plt section plus the immediate.
682 // Set the 1 << 32 bit to let ELFObjectFileBase::getPltEntries convert the
683 // offset to an address. Imm may be a negative int32_t if the GOT entry is
684 // in .got.
685 uint32_t Imm = support::endian::read32le(PltContents.data() + Byte + 2);
686 Result.emplace_back(PltSectionVA + Byte, Imm | (uint64_t(1) << 32));
687 Byte += 6;
688 } else if (PltContents[Byte] == 0xff && PltContents[Byte + 1] == 0x25) {
689 // The jmp instruction at the beginning of each PLT entry jumps to the
690 // immediate.
691 uint32_t Imm = support::endian::read32le(PltContents.data() + Byte + 2);
692 Result.push_back(std::make_pair(PltSectionVA + Byte, Imm));
693 Byte += 6;
694 } else
695 Byte++;
696 }
697 return Result;
698}
699
700static std::vector<std::pair<uint64_t, uint64_t>>
701findX86_64PltEntries(uint64_t PltSectionVA, ArrayRef<uint8_t> PltContents) {
702 // Do a lightweight parsing of PLT entries.
703 std::vector<std::pair<uint64_t, uint64_t>> Result;
704 for (uint64_t Byte = 0, End = PltContents.size(); Byte + 6 < End; ) {
705 // Recognize a jmp.
706 if (PltContents[Byte] == 0xff && PltContents[Byte + 1] == 0x25) {
707 // The jmp instruction at the beginning of each PLT entry jumps to the
708 // address of the next instruction plus the immediate.
709 uint32_t Imm = support::endian::read32le(PltContents.data() + Byte + 2);
710 Result.push_back(
711 std::make_pair(PltSectionVA + Byte, PltSectionVA + Byte + 6 + Imm));
712 Byte += 6;
713 } else
714 Byte++;
715 }
716 return Result;
717}
718
719std::vector<std::pair<uint64_t, uint64_t>>
721 ArrayRef<uint8_t> PltContents,
722 const MCSubtargetInfo &STI) const {
723 const Triple &TargetTriple = STI.getTargetTriple();
724 switch (TargetTriple.getArch()) {
725 case Triple::x86:
726 return findX86PltEntries(PltSectionVA, PltContents);
727 case Triple::x86_64:
728 return findX86_64PltEntries(PltSectionVA, PltContents);
729 default:
730 return {};
731 }
732}
733
734bool X86MCInstrAnalysis::evaluateBranch(const MCInst &Inst, uint64_t Addr,
735 uint64_t Size, uint64_t &Target) const {
736 if (Inst.getNumOperands() == 0 ||
737 Info->get(Inst.getOpcode()).operands()[0].OperandType !=
739 return false;
740 Target = Addr + Size + Inst.getOperand(0).getImm();
741 return true;
742}
743
745 const MCInst &Inst, const MCSubtargetInfo *STI, uint64_t Addr,
746 uint64_t Size) const {
747 const MCInstrDesc &MCID = Info->get(Inst.getOpcode());
748 int MemOpStart = X86II::getMemoryOperandIdx(MCID);
749 if (MemOpStart == -1)
750 return std::nullopt;
751
752 const MCOperand &SegReg = Inst.getOperand(MemOpStart + X86::AddrSegmentReg);
753 const MCOperand &BaseReg = Inst.getOperand(MemOpStart + X86::AddrBaseReg);
754 const MCOperand &IndexReg = Inst.getOperand(MemOpStart + X86::AddrIndexReg);
755 const MCOperand &ScaleAmt = Inst.getOperand(MemOpStart + X86::AddrScaleAmt);
756 const MCOperand &Disp = Inst.getOperand(MemOpStart + X86::AddrDisp);
757 if (SegReg.getReg() || IndexReg.getReg() || ScaleAmt.getImm() != 1 ||
758 !Disp.isImm())
759 return std::nullopt;
760
761 // RIP-relative addressing.
762 if (BaseReg.getReg() == X86::RIP)
763 return Addr + Size + Disp.getImm();
764
765 return std::nullopt;
766}
767
768std::optional<uint64_t>
770 uint64_t Size) const {
771 if (Inst.getOpcode() != X86::LEA64r)
772 return std::nullopt;
773 const MCInstrDesc &MCID = Info->get(Inst.getOpcode());
774 int MemOpStart = X86II::getMemoryOperandIdx(MCID);
775 if (MemOpStart == -1)
776 return std::nullopt;
777 const MCOperand &SegReg = Inst.getOperand(MemOpStart + X86::AddrSegmentReg);
778 const MCOperand &BaseReg = Inst.getOperand(MemOpStart + X86::AddrBaseReg);
779 const MCOperand &IndexReg = Inst.getOperand(MemOpStart + X86::AddrIndexReg);
780 const MCOperand &ScaleAmt = Inst.getOperand(MemOpStart + X86::AddrScaleAmt);
781 const MCOperand &Disp = Inst.getOperand(MemOpStart + X86::AddrDisp);
782 // Must be a simple rip-relative address.
783 if (BaseReg.getReg() != X86::RIP || SegReg.getReg() || IndexReg.getReg() ||
784 ScaleAmt.getImm() != 1 || !Disp.isImm())
785 return std::nullopt;
786 // rip-relative ModR/M immediate is 32 bits.
787 assert(Size > 4 && "invalid instruction size for rip-relative lea");
788 return Size - 4;
789}
790
791} // end of namespace X86_MC
792
793} // end of namespace llvm
794
796 return new X86_MC::X86MCInstrAnalysis(Info);
797}
798
799static MCLFIRewriter *
801 std::unique_ptr<MCRegisterInfo> &&RegInfo,
802 std::unique_ptr<MCInstrInfo> &&InstInfo) {
803 return new X86::X86MCLFIRewriter(Ctx, std::move(RegInfo),
804 std::move(InstInfo));
805}
806
807// Force static initialization.
811 // Register the MC asm info.
813
814 // Register the MC instruction info.
816
817 // Register the MC register info.
819
820 // Register the MC subtarget info.
823
824 // Register the MC instruction analyzer.
826
827 // Register the code emitter.
829
830 // Register the LFI rewriter.
832
833 // Register the obj target streamer.
836
837 // Register the asm target streamer.
839
840 // Register the null streamer.
842
845
846 // Register the MCInstPrinter.
848
849 // Register the MC relocation info.
851 }
852
853 // Register the asm backend.
858}
859
861 bool High) {
862#define DEFAULT_NOREG \
863 default: \
864 return X86::NoRegister;
865#define SUB_SUPER(R1, R2, R3, R4, R) \
866 case X86::R1: \
867 case X86::R2: \
868 case X86::R3: \
869 case X86::R4: \
870 return X86::R;
871#define A_SUB_SUPER(R) \
872 case X86::AH: \
873 SUB_SUPER(AL, AX, EAX, RAX, R)
874#define D_SUB_SUPER(R) \
875 case X86::DH: \
876 SUB_SUPER(DL, DX, EDX, RDX, R)
877#define C_SUB_SUPER(R) \
878 case X86::CH: \
879 SUB_SUPER(CL, CX, ECX, RCX, R)
880#define B_SUB_SUPER(R) \
881 case X86::BH: \
882 SUB_SUPER(BL, BX, EBX, RBX, R)
883#define SI_SUB_SUPER(R) SUB_SUPER(SIL, SI, ESI, RSI, R)
884#define DI_SUB_SUPER(R) SUB_SUPER(DIL, DI, EDI, RDI, R)
885#define BP_SUB_SUPER(R) SUB_SUPER(BPL, BP, EBP, RBP, R)
886#define SP_SUB_SUPER(R) SUB_SUPER(SPL, SP, ESP, RSP, R)
887#define NO_SUB_SUPER(NO, REG) \
888 SUB_SUPER(R##NO##B, R##NO##W, R##NO##D, R##NO, REG)
889#define NO_SUB_SUPER_B(NO) NO_SUB_SUPER(NO, R##NO##B)
890#define NO_SUB_SUPER_W(NO) NO_SUB_SUPER(NO, R##NO##W)
891#define NO_SUB_SUPER_D(NO) NO_SUB_SUPER(NO, R##NO##D)
892#define NO_SUB_SUPER_Q(NO) NO_SUB_SUPER(NO, R##NO)
893 switch (Size) {
894 default:
895 llvm_unreachable("illegal register size");
896 case 8:
897 if (High) {
898 switch (Reg.id()) {
900 A_SUB_SUPER(AH)
901 D_SUB_SUPER(DH)
903 B_SUB_SUPER(BH)
904 }
905 } else {
906 switch (Reg.id()) {
908 A_SUB_SUPER(AL)
910 C_SUB_SUPER(CL)
911 B_SUB_SUPER(BL)
912 SI_SUB_SUPER(SIL)
913 DI_SUB_SUPER(DIL)
914 BP_SUB_SUPER(BPL)
915 SP_SUB_SUPER(SPL)
940 }
941 }
942 case 16:
943 switch (Reg.id()) {
945 A_SUB_SUPER(AX)
946 D_SUB_SUPER(DX)
947 C_SUB_SUPER(CX)
948 B_SUB_SUPER(BX)
950 DI_SUB_SUPER(DI)
951 BP_SUB_SUPER(BP)
952 SP_SUB_SUPER(SP)
977 }
978 case 32:
979 switch (Reg.id()) {
981 A_SUB_SUPER(EAX)
982 D_SUB_SUPER(EDX)
983 C_SUB_SUPER(ECX)
984 B_SUB_SUPER(EBX)
985 SI_SUB_SUPER(ESI)
986 DI_SUB_SUPER(EDI)
987 BP_SUB_SUPER(EBP)
988 SP_SUB_SUPER(ESP)
1000 NO_SUB_SUPER_D(19)
1001 NO_SUB_SUPER_D(20)
1002 NO_SUB_SUPER_D(21)
1003 NO_SUB_SUPER_D(22)
1004 NO_SUB_SUPER_D(23)
1005 NO_SUB_SUPER_D(24)
1006 NO_SUB_SUPER_D(25)
1007 NO_SUB_SUPER_D(26)
1008 NO_SUB_SUPER_D(27)
1009 NO_SUB_SUPER_D(28)
1010 NO_SUB_SUPER_D(29)
1011 NO_SUB_SUPER_D(30)
1012 NO_SUB_SUPER_D(31)
1013 }
1014 case 64:
1015 switch (Reg.id()) {
1017 A_SUB_SUPER(RAX)
1018 D_SUB_SUPER(RDX)
1019 C_SUB_SUPER(RCX)
1020 B_SUB_SUPER(RBX)
1021 SI_SUB_SUPER(RSI)
1023 BP_SUB_SUPER(RBP)
1024 SP_SUB_SUPER(RSP)
1027 NO_SUB_SUPER_Q(10)
1028 NO_SUB_SUPER_Q(11)
1029 NO_SUB_SUPER_Q(12)
1030 NO_SUB_SUPER_Q(13)
1031 NO_SUB_SUPER_Q(14)
1032 NO_SUB_SUPER_Q(15)
1033 NO_SUB_SUPER_Q(16)
1034 NO_SUB_SUPER_Q(17)
1035 NO_SUB_SUPER_Q(18)
1036 NO_SUB_SUPER_Q(19)
1037 NO_SUB_SUPER_Q(20)
1038 NO_SUB_SUPER_Q(21)
1039 NO_SUB_SUPER_Q(22)
1040 NO_SUB_SUPER_Q(23)
1041 NO_SUB_SUPER_Q(24)
1042 NO_SUB_SUPER_Q(25)
1043 NO_SUB_SUPER_Q(26)
1044 NO_SUB_SUPER_Q(27)
1045 NO_SUB_SUPER_Q(28)
1046 NO_SUB_SUPER_Q(29)
1047 NO_SUB_SUPER_Q(30)
1048 NO_SUB_SUPER_Q(31)
1049 }
1050 }
1051}
assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")
uint64_t uint64_t
uint64_t Imm
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:665
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
MachineRegisterInfo & MRI
#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:39
llvm::DenseSet< llvm::CachedHashStringRef > & getReservedIdentifiers()
Definition MCAsmInfo.h:497
unsigned getOutputAssemblerDialect() const
Definition MCAsmInfo.h:578
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...
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:820
bool isX86_64() const
Tests whether the target is x86 (64-bit).
Definition Triple.h:1206
bool isOSBinFormatMachO() const
Tests whether the environment is MachO.
Definition Triple.h:876
bool isWindowsCoreCLREnvironment() const
Definition Triple.h:803
ArchType getArch() const
Get the parsed architecture type of this triple.
Definition Triple.h:515
bool isUEFI() const
Tests whether the OS is UEFI.
Definition Triple.h:775
bool isOSBinFormatELF() const
Tests whether the OS uses the ELF binary format.
Definition Triple.h:867
bool isWindowsMSVCEnvironment() const
Checks if the environment could be MSVC.
Definition Triple.h:792
bool isWindowsItaniumEnvironment() const
Definition Triple.h:807
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.
Registers T::Global with cl::ParseCommandLineOptions.
#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:412
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
@ End
Run the machine verifier once, at the end of the pipeline.
Definition CodeGen.h:320
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.