LLVM  9.0.0svn
ARMTargetParser.cpp
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1 //===-- ARMTargetParser - Parser for ARM target features --------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements a target parser to recognise ARM hardware features
10 // such as FPU/CPU/ARCH/extensions and specific support such as HWDIV.
11 //
12 //===----------------------------------------------------------------------===//
13 
15 #include "llvm/ADT/StringSwitch.h"
16 #include <cctype>
17 
18 using namespace llvm;
19 
21  return StringSwitch<StringRef>(HWDiv)
22  .Case("thumb,arm", "arm,thumb")
23  .Default(HWDiv);
24 }
25 
26 // Allows partial match, ex. "v7a" matches "armv7a".
28  Arch = getCanonicalArchName(Arch);
29  StringRef Syn = getArchSynonym(Arch);
30  for (const auto A : ARCHNames) {
31  if (A.getName().endswith(Syn))
32  return A.ID;
33  }
34  return ArchKind::INVALID;
35 }
36 
37 // Version number (ex. v7 = 7).
39  Arch = getCanonicalArchName(Arch);
40  switch (parseArch(Arch)) {
41  case ArchKind::ARMV2:
42  case ArchKind::ARMV2A:
43  return 2;
44  case ArchKind::ARMV3:
45  case ArchKind::ARMV3M:
46  return 3;
47  case ArchKind::ARMV4:
48  case ArchKind::ARMV4T:
49  return 4;
50  case ArchKind::ARMV5T:
51  case ArchKind::ARMV5TE:
52  case ArchKind::IWMMXT:
53  case ArchKind::IWMMXT2:
54  case ArchKind::XSCALE:
55  case ArchKind::ARMV5TEJ:
56  return 5;
57  case ArchKind::ARMV6:
58  case ArchKind::ARMV6K:
59  case ArchKind::ARMV6T2:
60  case ArchKind::ARMV6KZ:
61  case ArchKind::ARMV6M:
62  return 6;
63  case ArchKind::ARMV7A:
64  case ArchKind::ARMV7VE:
65  case ArchKind::ARMV7R:
66  case ArchKind::ARMV7M:
67  case ArchKind::ARMV7S:
68  case ArchKind::ARMV7EM:
69  case ArchKind::ARMV7K:
70  return 7;
71  case ArchKind::ARMV8A:
72  case ArchKind::ARMV8_1A:
73  case ArchKind::ARMV8_2A:
74  case ArchKind::ARMV8_3A:
75  case ArchKind::ARMV8_4A:
76  case ArchKind::ARMV8_5A:
77  case ArchKind::ARMV8R:
78  case ArchKind::ARMV8MBaseline:
79  case ArchKind::ARMV8MMainline:
80  return 8;
81  case ArchKind::INVALID:
82  return 0;
83  }
84  llvm_unreachable("Unhandled architecture");
85 }
86 
87 // Profile A/R/M
89  Arch = getCanonicalArchName(Arch);
90  switch (parseArch(Arch)) {
91  case ArchKind::ARMV6M:
92  case ArchKind::ARMV7M:
93  case ArchKind::ARMV7EM:
94  case ArchKind::ARMV8MMainline:
95  case ArchKind::ARMV8MBaseline:
96  return ProfileKind::M;
97  case ArchKind::ARMV7R:
98  case ArchKind::ARMV8R:
99  return ProfileKind::R;
100  case ArchKind::ARMV7A:
101  case ArchKind::ARMV7VE:
102  case ArchKind::ARMV7K:
103  case ArchKind::ARMV8A:
104  case ArchKind::ARMV8_1A:
105  case ArchKind::ARMV8_2A:
106  case ArchKind::ARMV8_3A:
107  case ArchKind::ARMV8_4A:
108  case ArchKind::ARMV8_5A:
109  return ProfileKind::A;
110  case ArchKind::ARMV2:
111  case ArchKind::ARMV2A:
112  case ArchKind::ARMV3:
113  case ArchKind::ARMV3M:
114  case ArchKind::ARMV4:
115  case ArchKind::ARMV4T:
116  case ArchKind::ARMV5T:
117  case ArchKind::ARMV5TE:
118  case ArchKind::ARMV5TEJ:
119  case ArchKind::ARMV6:
120  case ArchKind::ARMV6K:
121  case ArchKind::ARMV6T2:
122  case ArchKind::ARMV6KZ:
123  case ArchKind::ARMV7S:
124  case ArchKind::IWMMXT:
125  case ArchKind::IWMMXT2:
126  case ArchKind::XSCALE:
127  case ArchKind::INVALID:
128  return ProfileKind::INVALID;
129  }
130  llvm_unreachable("Unhandled architecture");
131 }
132 
134  return StringSwitch<StringRef>(Arch)
135  .Case("v5", "v5t")
136  .Case("v5e", "v5te")
137  .Case("v6j", "v6")
138  .Case("v6hl", "v6k")
139  .Cases("v6m", "v6sm", "v6s-m", "v6-m")
140  .Cases("v6z", "v6zk", "v6kz")
141  .Cases("v7", "v7a", "v7hl", "v7l", "v7-a")
142  .Case("v7r", "v7-r")
143  .Case("v7m", "v7-m")
144  .Case("v7em", "v7e-m")
145  .Cases("v8", "v8a", "v8l", "aarch64", "arm64", "v8-a")
146  .Case("v8.1a", "v8.1-a")
147  .Case("v8.2a", "v8.2-a")
148  .Case("v8.3a", "v8.3-a")
149  .Case("v8.4a", "v8.4-a")
150  .Case("v8.5a", "v8.5-a")
151  .Case("v8r", "v8-r")
152  .Case("v8m.base", "v8-m.base")
153  .Case("v8m.main", "v8-m.main")
154  .Default(Arch);
155 }
156 
157 bool ARM::getFPUFeatures(unsigned FPUKind, std::vector<StringRef> &Features) {
158 
159  if (FPUKind >= FK_LAST || FPUKind == FK_INVALID)
160  return false;
161 
162  // fp-only-sp and d16 subtarget features are independent of each other, so we
163  // must enable/disable both.
164  switch (FPUNames[FPUKind].Restriction) {
165  case FPURestriction::SP_D16:
166  Features.push_back("+fp-only-sp");
167  Features.push_back("+d16");
168  break;
169  case FPURestriction::D16:
170  Features.push_back("-fp-only-sp");
171  Features.push_back("+d16");
172  break;
174  Features.push_back("-fp-only-sp");
175  Features.push_back("-d16");
176  break;
177  }
178 
179  // FPU version subtarget features are inclusive of lower-numbered ones, so
180  // enable the one corresponding to this version and disable all that are
181  // higher. We also have to make sure to disable fp16 when vfp4 is disabled,
182  // as +vfp4 implies +fp16 but -vfp4 does not imply -fp16.
183  switch (FPUNames[FPUKind].FPUVer) {
184  case FPUVersion::VFPV5:
185  Features.push_back("+fp-armv8");
186  break;
187  case FPUVersion::VFPV4:
188  Features.push_back("+vfp4");
189  Features.push_back("-fp-armv8");
190  break;
191  case FPUVersion::VFPV3_FP16:
192  Features.push_back("+vfp3");
193  Features.push_back("+fp16");
194  Features.push_back("-vfp4");
195  Features.push_back("-fp-armv8");
196  break;
197  case FPUVersion::VFPV3:
198  Features.push_back("+vfp3");
199  Features.push_back("-fp16");
200  Features.push_back("-vfp4");
201  Features.push_back("-fp-armv8");
202  break;
203  case FPUVersion::VFPV2:
204  Features.push_back("+vfp2");
205  Features.push_back("-vfp3");
206  Features.push_back("-fp16");
207  Features.push_back("-vfp4");
208  Features.push_back("-fp-armv8");
209  break;
210  case FPUVersion::NONE:
211  Features.push_back("-vfp2");
212  Features.push_back("-vfp3");
213  Features.push_back("-fp16");
214  Features.push_back("-vfp4");
215  Features.push_back("-fp-armv8");
216  break;
217  }
218 
219  // crypto includes neon, so we handle this similarly to FPU version.
220  switch (FPUNames[FPUKind].NeonSupport) {
221  case NeonSupportLevel::Crypto:
222  Features.push_back("+neon");
223  Features.push_back("+crypto");
224  break;
225  case NeonSupportLevel::Neon:
226  Features.push_back("+neon");
227  Features.push_back("-crypto");
228  break;
230  Features.push_back("-neon");
231  Features.push_back("-crypto");
232  break;
233  }
234 
235  return true;
236 }
237 
238 // Little/Big endian
240  if (Arch.startswith("armeb") || Arch.startswith("thumbeb") ||
241  Arch.startswith("aarch64_be"))
242  return EndianKind::BIG;
243 
244  if (Arch.startswith("arm") || Arch.startswith("thumb")) {
245  if (Arch.endswith("eb"))
246  return EndianKind::BIG;
247  else
248  return EndianKind::LITTLE;
249  }
250 
251  if (Arch.startswith("aarch64") || Arch.startswith("aarch64_32"))
252  return EndianKind::LITTLE;
253 
254  return EndianKind::INVALID;
255 }
256 
257 // ARM, Thumb, AArch64
259  return StringSwitch<ISAKind>(Arch)
260  .StartsWith("aarch64", ISAKind::AARCH64)
261  .StartsWith("arm64", ISAKind::AARCH64)
262  .StartsWith("thumb", ISAKind::THUMB)
263  .StartsWith("arm", ISAKind::ARM)
264  .Default(ISAKind::INVALID);
265 }
266 
267 unsigned ARM::parseFPU(StringRef FPU) {
268  StringRef Syn = getFPUSynonym(FPU);
269  for (const auto F : FPUNames) {
270  if (Syn == F.getName())
271  return F.ID;
272  }
273  return FK_INVALID;
274 }
275 
277  if (FPUKind >= FK_LAST)
278  return NeonSupportLevel::None;
279  return FPUNames[FPUKind].NeonSupport;
280 }
281 
282 // MArch is expected to be of the form (arm|thumb)?(eb)?(v.+)?(eb)?, but
283 // (iwmmxt|xscale)(eb)? is also permitted. If the former, return
284 // "v.+", if the latter, return unmodified string, minus 'eb'.
285 // If invalid, return empty string.
287  size_t offset = StringRef::npos;
288  StringRef A = Arch;
289  StringRef Error = "";
290 
291  // Begins with "arm" / "thumb", move past it.
292  if (A.startswith("arm64_32"))
293  offset = 8;
294  else if (A.startswith("arm64"))
295  offset = 5;
296  else if (A.startswith("aarch64_32"))
297  offset = 10;
298  else if (A.startswith("arm"))
299  offset = 3;
300  else if (A.startswith("thumb"))
301  offset = 5;
302  else if (A.startswith("aarch64")) {
303  offset = 7;
304  // AArch64 uses "_be", not "eb" suffix.
305  if (A.find("eb") != StringRef::npos)
306  return Error;
307  if (A.substr(offset, 3) == "_be")
308  offset += 3;
309  }
310 
311  // Ex. "armebv7", move past the "eb".
312  if (offset != StringRef::npos && A.substr(offset, 2) == "eb")
313  offset += 2;
314  // Or, if it ends with eb ("armv7eb"), chop it off.
315  else if (A.endswith("eb"))
316  A = A.substr(0, A.size() - 2);
317  // Trim the head
318  if (offset != StringRef::npos)
319  A = A.substr(offset);
320 
321  // Empty string means offset reached the end, which means it's valid.
322  if (A.empty())
323  return Arch;
324 
325  // Only match non-marketing names
326  if (offset != StringRef::npos) {
327  // Must start with 'vN'.
328  if (A.size() >= 2 && (A[0] != 'v' || !std::isdigit(A[1])))
329  return Error;
330  // Can't have an extra 'eb'.
331  if (A.find("eb") != StringRef::npos)
332  return Error;
333  }
334 
335  // Arch will either be a 'v' name (v7a) or a marketing name (xscale).
336  return A;
337 }
338 
340  return StringSwitch<StringRef>(FPU)
341  .Cases("fpa", "fpe2", "fpe3", "maverick", "invalid") // Unsupported
342  .Case("vfp2", "vfpv2")
343  .Case("vfp3", "vfpv3")
344  .Case("vfp4", "vfpv4")
345  .Case("vfp3-d16", "vfpv3-d16")
346  .Case("vfp4-d16", "vfpv4-d16")
347  .Cases("fp4-sp-d16", "vfpv4-sp-d16", "fpv4-sp-d16")
348  .Cases("fp4-dp-d16", "fpv4-dp-d16", "vfpv4-d16")
349  .Case("fp5-sp-d16", "fpv5-sp-d16")
350  .Cases("fp5-dp-d16", "fpv5-dp-d16", "fpv5-d16")
351  // FIXME: Clang uses it, but it's bogus, since neon defaults to vfpv3.
352  .Case("neon-vfpv3", "neon")
353  .Default(FPU);
354 }
355 
357  if (FPUKind >= FK_LAST)
358  return StringRef();
359  return FPUNames[FPUKind].getName();
360 }
361 
363  if (FPUKind >= FK_LAST)
364  return FPUVersion::NONE;
365  return FPUNames[FPUKind].FPUVer;
366 }
367 
369  if (FPUKind >= FK_LAST)
370  return FPURestriction::None;
371  return FPUNames[FPUKind].Restriction;
372 }
373 
375  if (CPU == "generic")
376  return ARM::ARCHNames[static_cast<unsigned>(AK)].DefaultFPU;
377 
378  return StringSwitch<unsigned>(CPU)
379 #define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
380  .Case(NAME, DEFAULT_FPU)
381 #include "llvm/Support/ARMTargetParser.def"
382  .Default(ARM::FK_INVALID);
383 }
384 
386  if (CPU == "generic")
387  return ARM::ARCHNames[static_cast<unsigned>(AK)].ArchBaseExtensions;
388 
389  return StringSwitch<unsigned>(CPU)
390 #define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
391  .Case(NAME, \
392  ARCHNames[static_cast<unsigned>(ArchKind::ID)].ArchBaseExtensions | \
393  DEFAULT_EXT)
394 #include "llvm/Support/ARMTargetParser.def"
395  .Default(ARM::AEK_INVALID);
396 }
397 
398 bool ARM::getHWDivFeatures(unsigned HWDivKind,
399  std::vector<StringRef> &Features) {
400 
401  if (HWDivKind == AEK_INVALID)
402  return false;
403 
404  if (HWDivKind & AEK_HWDIVARM)
405  Features.push_back("+hwdiv-arm");
406  else
407  Features.push_back("-hwdiv-arm");
408 
409  if (HWDivKind & AEK_HWDIVTHUMB)
410  Features.push_back("+hwdiv");
411  else
412  Features.push_back("-hwdiv");
413 
414  return true;
415 }
416 
417 bool ARM::getExtensionFeatures(unsigned Extensions,
418  std::vector<StringRef> &Features) {
419 
420  if (Extensions == AEK_INVALID)
421  return false;
422 
423  if (Extensions & AEK_CRC)
424  Features.push_back("+crc");
425  else
426  Features.push_back("-crc");
427 
428  if (Extensions & AEK_DSP)
429  Features.push_back("+dsp");
430  else
431  Features.push_back("-dsp");
432 
433  if (Extensions & AEK_FP16FML)
434  Features.push_back("+fp16fml");
435  else
436  Features.push_back("-fp16fml");
437 
438  if (Extensions & AEK_RAS)
439  Features.push_back("+ras");
440  else
441  Features.push_back("-ras");
442 
443  if (Extensions & AEK_DOTPROD)
444  Features.push_back("+dotprod");
445  else
446  Features.push_back("-dotprod");
447 
448  return getHWDivFeatures(Extensions, Features);
449 }
450 
452  return ARCHNames[static_cast<unsigned>(AK)].getName();
453 }
454 
456  return ARCHNames[static_cast<unsigned>(AK)].getCPUAttr();
457 }
458 
460  return ARCHNames[static_cast<unsigned>(AK)].getSubArch();
461 }
462 
464  return ARCHNames[static_cast<unsigned>(AK)].ArchAttr;
465 }
466 
468  for (const auto AE : ARCHExtNames) {
469  if (ArchExtKind == AE.ID)
470  return AE.getName();
471  }
472  return StringRef();
473 }
474 
476  if (ArchExt.startswith("no")) {
477  StringRef ArchExtBase(ArchExt.substr(2));
478  for (const auto AE : ARCHExtNames) {
479  if (AE.NegFeature && ArchExtBase == AE.getName())
480  return StringRef(AE.NegFeature);
481  }
482  }
483  for (const auto AE : ARCHExtNames) {
484  if (AE.Feature && ArchExt == AE.getName())
485  return StringRef(AE.Feature);
486  }
487 
488  return StringRef();
489 }
490 
491 StringRef ARM::getHWDivName(unsigned HWDivKind) {
492  for (const auto D : HWDivNames) {
493  if (HWDivKind == D.ID)
494  return D.getName();
495  }
496  return StringRef();
497 }
498 
500  ArchKind AK = parseArch(Arch);
501  if (AK == ArchKind::INVALID)
502  return StringRef();
503 
504  // Look for multiple AKs to find the default for pair AK+Name.
505  for (const auto CPU : CPUNames) {
506  if (CPU.ArchID == AK && CPU.Default)
507  return CPU.getName();
508  }
509 
510  // If we can't find a default then target the architecture instead
511  return "generic";
512 }
513 
514 unsigned ARM::parseHWDiv(StringRef HWDiv) {
515  StringRef Syn = getHWDivSynonym(HWDiv);
516  for (const auto D : HWDivNames) {
517  if (Syn == D.getName())
518  return D.ID;
519  }
520  return AEK_INVALID;
521 }
522 
523 unsigned ARM::parseArchExt(StringRef ArchExt) {
524  for (const auto A : ARCHExtNames) {
525  if (ArchExt == A.getName())
526  return A.ID;
527  }
528  return AEK_INVALID;
529 }
530 
532  for (const auto C : CPUNames) {
533  if (CPU == C.getName())
534  return C.ArchID;
535  }
536  return ArchKind::INVALID;
537 }
538 
540  for (const CpuNames<ArchKind> &Arch : CPUNames) {
541  if (Arch.ArchID != ArchKind::INVALID)
542  Values.push_back(Arch.getName());
543  }
544 }
545 
547  StringRef ArchName =
548  CPU.empty() ? TT.getArchName() : getArchName(parseCPUArch(CPU));
549 
550  if (TT.isOSBinFormatMachO()) {
551  if (TT.getEnvironment() == Triple::EABI ||
552  TT.getOS() == Triple::UnknownOS ||
553  parseArchProfile(ArchName) == ProfileKind::M)
554  return "aapcs";
555  if (TT.isWatchABI())
556  return "aapcs16";
557  return "apcs-gnu";
558  } else if (TT.isOSWindows())
559  // FIXME: this is invalid for WindowsCE.
560  return "aapcs";
561 
562  // Select the default based on the platform.
563  switch (TT.getEnvironment()) {
564  case Triple::Android:
565  case Triple::GNUEABI:
566  case Triple::GNUEABIHF:
567  case Triple::MuslEABI:
568  case Triple::MuslEABIHF:
569  return "aapcs-linux";
570  case Triple::EABIHF:
571  case Triple::EABI:
572  return "aapcs";
573  default:
574  if (TT.isOSNetBSD())
575  return "apcs-gnu";
576  if (TT.isOSOpenBSD())
577  return "aapcs-linux";
578  return "aapcs";
579  }
580 }
uint64_t CallInst * C
StringRef getName() const
ISAKind parseArchISA(StringRef Arch)
LLVM_NODISCARD bool endswith(StringRef Suffix) const
Check if this string ends with the given Suffix.
Definition: StringRef.h:267
FPUVersion getFPUVersion(unsigned FPUKind)
This class represents lattice values for constants.
Definition: AllocatorList.h:23
OSType getOS() const
getOS - Get the parsed operating system type of this triple.
Definition: Triple.h:301
LLVM_NODISCARD bool startswith(StringRef Prefix) const
Check if this string starts with the given Prefix.
Definition: StringRef.h:256
const struct llvm::ARM::@302 HWDivNames[]
void push_back(const T &Elt)
Definition: SmallVector.h:211
StringRef getArchExtFeature(StringRef ArchExt)
StringSwitch & StartsWith(StringLiteral S, T Value)
Definition: StringSwitch.h:81
F(f)
StringRef getCPUAttr(ArchKind AK)
StringRef getCPUAttr(ArchKind AK)
StringSwitch & Case(StringLiteral S, T Value)
Definition: StringSwitch.h:67
static const FPUName FPUNames[]
unsigned getDefaultFPU(StringRef CPU, ArchKind AK)
bool getHWDivFeatures(unsigned HWDivKind, std::vector< StringRef > &Features)
NeonSupportLevel NeonSupport
StringRef getArchName(ArchKind AK)
LLVM_NODISCARD R Default(T Value)
Definition: StringSwitch.h:181
static StringRef getName(Value *V)
StringRef getCanonicalArchName(StringRef Arch)
LLVM_NODISCARD StringRef substr(size_t Start, size_t N=npos) const
Return a reference to the substring from [Start, Start + N).
Definition: StringRef.h:578
LLVM_NODISCARD bool empty() const
empty - Check if the string is empty.
Definition: StringRef.h:126
NeonSupportLevel getFPUNeonSupportLevel(unsigned FPUKind)
static StringRef getHWDivSynonym(StringRef HWDiv)
LLVM_NODISCARD size_t size() const
size - Get the string size.
Definition: StringRef.h:130
bool isOSNetBSD() const
Definition: Triple.h:485
StringRef getArchName(ArchKind AK)
bool isOSWindows() const
Tests whether the OS is Windows.
Definition: Triple.h:530
A switch()-like statement whose cases are string literals.
Definition: StringSwitch.h:42
StringSwitch & Cases(StringLiteral S0, StringLiteral S1, T Value)
Definition: StringSwitch.h:88
StringRef getDefaultCPU(StringRef Arch)
EndianKind parseArchEndian(StringRef Arch)
bool isOSOpenBSD() const
Definition: Triple.h:489
bool isWatchABI() const
Definition: Triple.h:472
LLVM_NODISCARD size_t find(char C, size_t From=0) const
Search for the first character C in the string.
Definition: StringRef.h:285
bool isOSBinFormatMachO() const
Tests whether the environment is MachO.
Definition: Triple.h:625
StringRef getFPUSynonym(StringRef FPU)
unsigned parseArchVersion(StringRef Arch)
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
FPURestriction getFPURestriction(unsigned FPUKind)
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
static const ArchNames< ArchKind > ARCHNames[]
StringRef getArchSynonym(StringRef Arch)
StringRef getArchName() const
getArchName - Get the architecture (first) component of the triple.
Definition: Triple.cpp:981
StringRef computeDefaultTargetABI(const Triple &TT, StringRef CPU)
ArchKind parseArch(StringRef Arch)
EnvironmentType getEnvironment() const
getEnvironment - Get the parsed environment type of this triple.
Definition: Triple.h:310
static GCRegistry::Add< StatepointGC > D("statepoint-example", "an example strategy for statepoint")
StringRef getHWDivName(unsigned HWDivKind)
#define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT)
StringRef getArchExtName(unsigned ArchExtKind)
void fillValidCPUArchList(SmallVectorImpl< StringRef > &Values)
ProfileKind parseArchProfile(StringRef Arch)
bool getExtensionFeatures(unsigned Extensions, std::vector< StringRef > &Features)
ArchKind parseCPUArch(StringRef CPU)
static const size_t npos
Definition: StringRef.h:50
FPURestriction Restriction
unsigned parseArchExt(StringRef ArchExt)
StringRef getName() const
Return a constant reference to the value&#39;s name.
Definition: Value.cpp:214
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
StringRef getFPUName(unsigned FPUKind)
unsigned getDefaultExtensions(StringRef CPU, ArchKind AK)
ArchKind parseCPUArch(StringRef CPU)
static Triple::ArchType parseArch(StringRef ArchName)
Definition: Triple.cpp:383
StringRef getSubArch(ArchKind AK)
StringRef getSubArch(ArchKind AK)
bool getFPUFeatures(unsigned FPUKind, std::vector< StringRef > &Features)
const ExtName ARCHExtNames[]
Lightweight error class with error context and mandatory checking.
Definition: Error.h:157
unsigned parseHWDiv(StringRef HWDiv)
unsigned parseFPU(StringRef FPU)
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
unsigned getArchAttr(ArchKind AK)
const CpuNames< ArchKind > CPUNames[]