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"))
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"))
293  offset = 5;
294  else if (A.startswith("arm"))
295  offset = 3;
296  else if (A.startswith("thumb"))
297  offset = 5;
298  else if (A.startswith("aarch64")) {
299  offset = 7;
300  // AArch64 uses "_be", not "eb" suffix.
301  if (A.find("eb") != StringRef::npos)
302  return Error;
303  if (A.substr(offset, 3) == "_be")
304  offset += 3;
305  }
306 
307  // Ex. "armebv7", move past the "eb".
308  if (offset != StringRef::npos && A.substr(offset, 2) == "eb")
309  offset += 2;
310  // Or, if it ends with eb ("armv7eb"), chop it off.
311  else if (A.endswith("eb"))
312  A = A.substr(0, A.size() - 2);
313  // Trim the head
314  if (offset != StringRef::npos)
315  A = A.substr(offset);
316 
317  // Empty string means offset reached the end, which means it's valid.
318  if (A.empty())
319  return Arch;
320 
321  // Only match non-marketing names
322  if (offset != StringRef::npos) {
323  // Must start with 'vN'.
324  if (A.size() >= 2 && (A[0] != 'v' || !std::isdigit(A[1])))
325  return Error;
326  // Can't have an extra 'eb'.
327  if (A.find("eb") != StringRef::npos)
328  return Error;
329  }
330 
331  // Arch will either be a 'v' name (v7a) or a marketing name (xscale).
332  return A;
333 }
334 
336  return StringSwitch<StringRef>(FPU)
337  .Cases("fpa", "fpe2", "fpe3", "maverick", "invalid") // Unsupported
338  .Case("vfp2", "vfpv2")
339  .Case("vfp3", "vfpv3")
340  .Case("vfp4", "vfpv4")
341  .Case("vfp3-d16", "vfpv3-d16")
342  .Case("vfp4-d16", "vfpv4-d16")
343  .Cases("fp4-sp-d16", "vfpv4-sp-d16", "fpv4-sp-d16")
344  .Cases("fp4-dp-d16", "fpv4-dp-d16", "vfpv4-d16")
345  .Case("fp5-sp-d16", "fpv5-sp-d16")
346  .Cases("fp5-dp-d16", "fpv5-dp-d16", "fpv5-d16")
347  // FIXME: Clang uses it, but it's bogus, since neon defaults to vfpv3.
348  .Case("neon-vfpv3", "neon")
349  .Default(FPU);
350 }
351 
353  if (FPUKind >= FK_LAST)
354  return StringRef();
355  return FPUNames[FPUKind].getName();
356 }
357 
359  if (FPUKind >= FK_LAST)
360  return FPUVersion::NONE;
361  return FPUNames[FPUKind].FPUVer;
362 }
363 
365  if (FPUKind >= FK_LAST)
366  return FPURestriction::None;
367  return FPUNames[FPUKind].Restriction;
368 }
369 
371  if (CPU == "generic")
372  return ARM::ARCHNames[static_cast<unsigned>(AK)].DefaultFPU;
373 
374  return StringSwitch<unsigned>(CPU)
375 #define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
376  .Case(NAME, DEFAULT_FPU)
377 #include "llvm/Support/ARMTargetParser.def"
378  .Default(ARM::FK_INVALID);
379 }
380 
382  if (CPU == "generic")
383  return ARM::ARCHNames[static_cast<unsigned>(AK)].ArchBaseExtensions;
384 
385  return StringSwitch<unsigned>(CPU)
386 #define ARM_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
387  .Case(NAME, \
388  ARCHNames[static_cast<unsigned>(ArchKind::ID)].ArchBaseExtensions | \
389  DEFAULT_EXT)
390 #include "llvm/Support/ARMTargetParser.def"
391  .Default(ARM::AEK_INVALID);
392 }
393 
394 bool ARM::getHWDivFeatures(unsigned HWDivKind,
395  std::vector<StringRef> &Features) {
396 
397  if (HWDivKind == AEK_INVALID)
398  return false;
399 
400  if (HWDivKind & AEK_HWDIVARM)
401  Features.push_back("+hwdiv-arm");
402  else
403  Features.push_back("-hwdiv-arm");
404 
405  if (HWDivKind & AEK_HWDIVTHUMB)
406  Features.push_back("+hwdiv");
407  else
408  Features.push_back("-hwdiv");
409 
410  return true;
411 }
412 
414  std::vector<StringRef> &Features) {
415 
416  if (Extensions == AEK_INVALID)
417  return false;
418 
419  if (Extensions & AEK_CRC)
420  Features.push_back("+crc");
421  else
422  Features.push_back("-crc");
423 
424  if (Extensions & AEK_DSP)
425  Features.push_back("+dsp");
426  else
427  Features.push_back("-dsp");
428 
429  if (Extensions & AEK_FP16FML)
430  Features.push_back("+fp16fml");
431  else
432  Features.push_back("-fp16fml");
433 
434  if (Extensions & AEK_RAS)
435  Features.push_back("+ras");
436  else
437  Features.push_back("-ras");
438 
439  if (Extensions & AEK_DOTPROD)
440  Features.push_back("+dotprod");
441  else
442  Features.push_back("-dotprod");
443 
444  return getHWDivFeatures(Extensions, Features);
445 }
446 
448  return ARCHNames[static_cast<unsigned>(AK)].getName();
449 }
450 
452  return ARCHNames[static_cast<unsigned>(AK)].getCPUAttr();
453 }
454 
456  return ARCHNames[static_cast<unsigned>(AK)].getSubArch();
457 }
458 
460  return ARCHNames[static_cast<unsigned>(AK)].ArchAttr;
461 }
462 
464  for (const auto AE : ARCHExtNames) {
465  if (ArchExtKind == AE.ID)
466  return AE.getName();
467  }
468  return StringRef();
469 }
470 
472  if (ArchExt.startswith("no")) {
473  StringRef ArchExtBase(ArchExt.substr(2));
474  for (const auto AE : ARCHExtNames) {
475  if (AE.NegFeature && ArchExtBase == AE.getName())
476  return StringRef(AE.NegFeature);
477  }
478  }
479  for (const auto AE : ARCHExtNames) {
480  if (AE.Feature && ArchExt == AE.getName())
481  return StringRef(AE.Feature);
482  }
483 
484  return StringRef();
485 }
486 
487 StringRef ARM::getHWDivName(unsigned HWDivKind) {
488  for (const auto D : HWDivNames) {
489  if (HWDivKind == D.ID)
490  return D.getName();
491  }
492  return StringRef();
493 }
494 
496  ArchKind AK = parseArch(Arch);
497  if (AK == ArchKind::INVALID)
498  return StringRef();
499 
500  // Look for multiple AKs to find the default for pair AK+Name.
501  for (const auto CPU : CPUNames) {
502  if (CPU.ArchID == AK && CPU.Default)
503  return CPU.getName();
504  }
505 
506  // If we can't find a default then target the architecture instead
507  return "generic";
508 }
509 
510 unsigned ARM::parseHWDiv(StringRef HWDiv) {
511  StringRef Syn = getHWDivSynonym(HWDiv);
512  for (const auto D : HWDivNames) {
513  if (Syn == D.getName())
514  return D.ID;
515  }
516  return AEK_INVALID;
517 }
518 
519 unsigned ARM::parseArchExt(StringRef ArchExt) {
520  for (const auto A : ARCHExtNames) {
521  if (ArchExt == A.getName())
522  return A.ID;
523  }
524  return AEK_INVALID;
525 }
526 
528  for (const auto C : CPUNames) {
529  if (CPU == C.getName())
530  return C.ArchID;
531  }
532  return ArchKind::INVALID;
533 }
534 
536  for (const CpuNames<ArchKind> &Arch : CPUNames) {
537  if (Arch.ArchID != ArchKind::INVALID)
538  Values.push_back(Arch.getName());
539  }
540 }
541 
543  StringRef ArchName =
544  CPU.empty() ? TT.getArchName() : getArchName(parseCPUArch(CPU));
545 
546  if (TT.isOSBinFormatMachO()) {
547  if (TT.getEnvironment() == Triple::EABI ||
548  TT.getOS() == Triple::UnknownOS ||
549  parseArchProfile(ArchName) == ProfileKind::M)
550  return "aapcs";
551  if (TT.isWatchABI())
552  return "aapcs16";
553  return "apcs-gnu";
554  } else if (TT.isOSWindows())
555  // FIXME: this is invalid for WindowsCE.
556  return "aapcs";
557 
558  // Select the default based on the platform.
559  switch (TT.getEnvironment()) {
560  case Triple::Android:
561  case Triple::GNUEABI:
562  case Triple::GNUEABIHF:
563  case Triple::MuslEABI:
564  case Triple::MuslEABIHF:
565  return "aapcs-linux";
566  case Triple::EABIHF:
567  case Triple::EABI:
568  return "aapcs";
569  default:
570  if (TT.isOSNetBSD())
571  return "apcs-gnu";
572  if (TT.isOSOpenBSD())
573  return "aapcs-linux";
574  return "aapcs";
575  }
576 }
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:298
LLVM_NODISCARD bool startswith(StringRef Prefix) const
Check if this string starts with the given Prefix.
Definition: StringRef.h:256
void push_back(const T &Elt)
Definition: SmallVector.h:211
StringRef getArchExtFeature(StringRef ArchExt)
const FeatureBitset Features
StringSwitch & StartsWith(StringLiteral S, T Value)
Definition: StringSwitch.h:81
F(f)
setjmp/longjmp based exceptions
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:482
StringRef getArchName(ArchKind AK)
bool isOSWindows() const
Tests whether the OS is Windows.
Definition: Triple.h:527
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:486
bool isWatchABI() const
Definition: Triple.h:469
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
static const struct @393 Extensions[]
bool isOSBinFormatMachO() const
Tests whether the environment is MachO.
Definition: Triple.h:612
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
const struct llvm::ARM::@296 HWDivNames[]
static const ArchNames< ArchKind > ARCHNames[]
StringRef getArchSynonym(StringRef Arch)
StringRef getArchName() const
getArchName - Get the architecture (first) component of the triple.
Definition: Triple.cpp:966
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:307
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:378
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[]