1 //===--- Triple.cpp - Target triple helper class --------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/ADT/Triple.h"
11 #include "llvm/ADT/SmallString.h"
12 #include "llvm/ADT/StringSwitch.h"
13 #include "llvm/ADT/STLExtras.h"
14 #include "llvm/Support/ErrorHandling.h"
18 const char *Triple::getArchTypeName(ArchType Kind) {
20 case UnknownArch: return "unknown";
22 case arm: return "arm";
23 case cellspu: return "cellspu";
24 case hexagon: return "hexagon";
25 case mips: return "mips";
26 case mipsel: return "mipsel";
27 case mips64: return "mips64";
28 case mips64el:return "mips64el";
29 case msp430: return "msp430";
30 case ppc64: return "powerpc64";
31 case ppc: return "powerpc";
32 case sparc: return "sparc";
33 case sparcv9: return "sparcv9";
34 case tce: return "tce";
35 case thumb: return "thumb";
36 case x86: return "i386";
37 case x86_64: return "x86_64";
38 case xcore: return "xcore";
39 case mblaze: return "mblaze";
40 case ptx32: return "ptx32";
41 case ptx64: return "ptx64";
42 case le32: return "le32";
43 case amdil: return "amdil";
46 llvm_unreachable("Invalid ArchType!");
49 const char *Triple::getArchTypePrefix(ArchType Kind) {
55 case thumb: return "arm";
57 case cellspu: return "spu";
60 case ppc: return "ppc";
62 case mblaze: return "mblaze";
64 case hexagon: return "hexagon";
67 case sparc: return "sparc";
70 case x86_64: return "x86";
72 case xcore: return "xcore";
74 case ptx32: return "ptx";
75 case ptx64: return "ptx";
76 case le32: return "le32";
77 case amdil: return "amdil";
81 const char *Triple::getVendorTypeName(VendorType Kind) {
83 case UnknownVendor: return "unknown";
85 case Apple: return "apple";
87 case SCEI: return "scei";
90 llvm_unreachable("Invalid VendorType!");
93 const char *Triple::getOSTypeName(OSType Kind) {
95 case UnknownOS: return "unknown";
97 case AuroraUX: return "auroraux";
98 case Cygwin: return "cygwin";
99 case Darwin: return "darwin";
100 case DragonFly: return "dragonfly";
101 case FreeBSD: return "freebsd";
102 case IOS: return "ios";
103 case KFreeBSD: return "kfreebsd";
104 case Linux: return "linux";
105 case Lv2: return "lv2";
106 case MacOSX: return "macosx";
107 case MinGW32: return "mingw32";
108 case NetBSD: return "netbsd";
109 case OpenBSD: return "openbsd";
110 case Psp: return "psp";
111 case Solaris: return "solaris";
112 case Win32: return "win32";
113 case Haiku: return "haiku";
114 case Minix: return "minix";
115 case RTEMS: return "rtems";
116 case NativeClient: return "nacl";
119 llvm_unreachable("Invalid OSType");
122 const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
124 case UnknownEnvironment: return "unknown";
125 case GNU: return "gnu";
126 case GNUEABIHF: return "gnueabihf";
127 case GNUEABI: return "gnueabi";
128 case EABI: return "eabi";
129 case MachO: return "macho";
130 case ANDROIDEABI: return "androideabi";
133 llvm_unreachable("Invalid EnvironmentType!");
136 Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
137 return StringSwitch<Triple::ArchType>(Name)
139 .Case("cellspu", cellspu)
141 .Case("mipsel", mipsel)
142 .Case("mips64", mips64)
143 .Case("mips64el", mips64el)
144 .Case("msp430", msp430)
145 .Case("ppc64", ppc64)
148 .Case("mblaze", mblaze)
149 .Case("hexagon", hexagon)
150 .Case("sparc", sparc)
151 .Case("sparcv9", sparcv9)
153 .Case("thumb", thumb)
155 .Case("x86-64", x86_64)
156 .Case("xcore", xcore)
157 .Case("ptx32", ptx32)
158 .Case("ptx64", ptx64)
160 .Case("amdil", amdil)
161 .Default(UnknownArch);
164 Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
165 // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
166 // archs which Darwin doesn't use.
168 // The matching this routine does is fairly pointless, since it is neither the
169 // complete architecture list, nor a reasonable subset. The problem is that
170 // historically the driver driver accepts this and also ties its -march=
171 // handling to the architecture name, so we need to be careful before removing
174 // This code must be kept in sync with Clang's Darwin specific argument
177 return StringSwitch<ArchType>(Str)
178 .Cases("ppc", "ppc601", "ppc603", "ppc604", "ppc604e", Triple::ppc)
179 .Cases("ppc750", "ppc7400", "ppc7450", "ppc970", Triple::ppc)
180 .Case("ppc64", Triple::ppc64)
181 .Cases("i386", "i486", "i486SX", "i586", "i686", Triple::x86)
182 .Cases("pentium", "pentpro", "pentIIm3", "pentIIm5", "pentium4",
184 .Case("x86_64", Triple::x86_64)
185 // This is derived from the driver driver.
186 .Cases("arm", "armv4t", "armv5", "armv6", Triple::arm)
187 .Cases("armv7", "armv7f", "armv7k", "armv7s", "xscale", Triple::arm)
188 .Case("ptx32", Triple::ptx32)
189 .Case("ptx64", Triple::ptx64)
190 .Case("amdil", Triple::amdil)
191 .Default(Triple::UnknownArch);
194 // Returns architecture name that is understood by the target assembler.
195 const char *Triple::getArchNameForAssembler() {
196 if (!isOSDarwin() && getVendor() != Triple::Apple)
199 return StringSwitch<const char*>(getArchName())
200 .Case("i386", "i386")
201 .Case("x86_64", "x86_64")
202 .Case("powerpc", "ppc")
203 .Case("powerpc64", "ppc64")
204 .Cases("mblaze", "microblaze", "mblaze")
206 .Cases("armv4t", "thumbv4t", "armv4t")
207 .Cases("armv5", "armv5e", "thumbv5", "thumbv5e", "armv5")
208 .Cases("armv6", "thumbv6", "armv6")
209 .Cases("armv7", "thumbv7", "armv7")
210 .Case("ptx32", "ptx32")
211 .Case("ptx64", "ptx64")
212 .Case("le32", "le32")
213 .Case("amdil", "amdil")
217 static Triple::ArchType parseArch(StringRef ArchName) {
218 return StringSwitch<Triple::ArchType>(ArchName)
219 .Cases("i386", "i486", "i586", "i686", Triple::x86)
220 // FIXME: Do we need to support these?
221 .Cases("i786", "i886", "i986", Triple::x86)
222 .Cases("amd64", "x86_64", Triple::x86_64)
223 .Case("powerpc", Triple::ppc)
224 .Cases("powerpc64", "ppu", Triple::ppc64)
225 .Case("mblaze", Triple::mblaze)
226 .Cases("arm", "xscale", Triple::arm)
227 // FIXME: It would be good to replace these with explicit names for all the
228 // various suffixes supported.
229 .StartsWith("armv", Triple::arm)
230 .Case("thumb", Triple::thumb)
231 .StartsWith("thumbv", Triple::thumb)
232 .Cases("spu", "cellspu", Triple::cellspu)
233 .Case("msp430", Triple::msp430)
234 .Cases("mips", "mipseb", "mipsallegrex", Triple::mips)
235 .Cases("mipsel", "mipsallegrexel", "psp", Triple::mipsel)
236 .Cases("mips64", "mips64eb", Triple::mips64)
237 .Case("mips64el", Triple::mips64el)
238 .Case("hexagon", Triple::hexagon)
239 .Case("sparc", Triple::sparc)
240 .Case("sparcv9", Triple::sparcv9)
241 .Case("tce", Triple::tce)
242 .Case("xcore", Triple::xcore)
243 .Case("ptx32", Triple::ptx32)
244 .Case("ptx64", Triple::ptx64)
245 .Case("le32", Triple::le32)
246 .Case("amdil", Triple::amdil)
247 .Default(Triple::UnknownArch);
250 static Triple::VendorType parseVendor(StringRef VendorName) {
251 return StringSwitch<Triple::VendorType>(VendorName)
252 .Case("apple", Triple::Apple)
253 .Case("pc", Triple::PC)
254 .Case("scei", Triple::SCEI)
255 .Default(Triple::UnknownVendor);
258 static Triple::OSType parseOS(StringRef OSName) {
259 return StringSwitch<Triple::OSType>(OSName)
260 .StartsWith("auroraux", Triple::AuroraUX)
261 .StartsWith("cygwin", Triple::Cygwin)
262 .StartsWith("darwin", Triple::Darwin)
263 .StartsWith("dragonfly", Triple::DragonFly)
264 .StartsWith("freebsd", Triple::FreeBSD)
265 .StartsWith("ios", Triple::IOS)
266 .StartsWith("kfreebsd", Triple::KFreeBSD)
267 .StartsWith("linux", Triple::Linux)
268 .StartsWith("lv2", Triple::Lv2)
269 .StartsWith("macosx", Triple::MacOSX)
270 .StartsWith("mingw32", Triple::MinGW32)
271 .StartsWith("netbsd", Triple::NetBSD)
272 .StartsWith("openbsd", Triple::OpenBSD)
273 .StartsWith("psp", Triple::Psp)
274 .StartsWith("solaris", Triple::Solaris)
275 .StartsWith("win32", Triple::Win32)
276 .StartsWith("haiku", Triple::Haiku)
277 .StartsWith("minix", Triple::Minix)
278 .StartsWith("rtems", Triple::RTEMS)
279 .StartsWith("nacl", Triple::NativeClient)
280 .Default(Triple::UnknownOS);
283 static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
284 return StringSwitch<Triple::EnvironmentType>(EnvironmentName)
285 .StartsWith("eabi", Triple::EABI)
286 .StartsWith("gnueabihf", Triple::GNUEABIHF)
287 .StartsWith("gnueabi", Triple::GNUEABI)
288 .StartsWith("gnu", Triple::GNU)
289 .StartsWith("macho", Triple::MachO)
290 .StartsWith("androideabi", Triple::ANDROIDEABI)
291 .Default(Triple::UnknownEnvironment);
294 /// \brief Construct a triple from the string representation provided.
296 /// This stores the string representation and parses the various pieces into
298 Triple::Triple(const Twine &Str)
300 Arch(parseArch(getArchName())),
301 Vendor(parseVendor(getVendorName())),
302 OS(parseOS(getOSName())),
303 Environment(parseEnvironment(getEnvironmentName())) {
306 /// \brief Construct a triple from string representations of the architecture,
309 /// This joins each argument into a canonical string representation and parses
310 /// them into enum members. It leaves the environment unknown and omits it from
311 /// the string representation.
312 Triple::Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr)
313 : Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr).str()),
314 Arch(parseArch(ArchStr.str())),
315 Vendor(parseVendor(VendorStr.str())),
316 OS(parseOS(OSStr.str())),
320 /// \brief Construct a triple from string representations of the architecture,
321 /// vendor, OS, and environment.
323 /// This joins each argument into a canonical string representation and parses
324 /// them into enum members.
325 Triple::Triple(const Twine &ArchStr, const Twine &VendorStr, const Twine &OSStr,
326 const Twine &EnvironmentStr)
327 : Data((ArchStr + Twine('-') + VendorStr + Twine('-') + OSStr + Twine('-') +
328 EnvironmentStr).str()),
329 Arch(parseArch(ArchStr.str())),
330 Vendor(parseVendor(VendorStr.str())),
331 OS(parseOS(OSStr.str())),
332 Environment(parseEnvironment(EnvironmentStr.str())) {
335 std::string Triple::normalize(StringRef Str) {
336 // Parse into components.
337 SmallVector<StringRef, 4> Components;
338 Str.split(Components, "-");
340 // If the first component corresponds to a known architecture, preferentially
341 // use it for the architecture. If the second component corresponds to a
342 // known vendor, preferentially use it for the vendor, etc. This avoids silly
343 // component movement when a component parses as (eg) both a valid arch and a
345 ArchType Arch = UnknownArch;
346 if (Components.size() > 0)
347 Arch = parseArch(Components[0]);
348 VendorType Vendor = UnknownVendor;
349 if (Components.size() > 1)
350 Vendor = parseVendor(Components[1]);
351 OSType OS = UnknownOS;
352 if (Components.size() > 2)
353 OS = parseOS(Components[2]);
354 EnvironmentType Environment = UnknownEnvironment;
355 if (Components.size() > 3)
356 Environment = parseEnvironment(Components[3]);
358 // Note which components are already in their final position. These will not
361 Found[0] = Arch != UnknownArch;
362 Found[1] = Vendor != UnknownVendor;
363 Found[2] = OS != UnknownOS;
364 Found[3] = Environment != UnknownEnvironment;
366 // If they are not there already, permute the components into their canonical
367 // positions by seeing if they parse as a valid architecture, and if so moving
368 // the component to the architecture position etc.
369 for (unsigned Pos = 0; Pos != array_lengthof(Found); ++Pos) {
371 continue; // Already in the canonical position.
373 for (unsigned Idx = 0; Idx != Components.size(); ++Idx) {
374 // Do not reparse any components that already matched.
375 if (Idx < array_lengthof(Found) && Found[Idx])
378 // Does this component parse as valid for the target position?
380 StringRef Comp = Components[Idx];
382 default: llvm_unreachable("unexpected component type!");
384 Arch = parseArch(Comp);
385 Valid = Arch != UnknownArch;
388 Vendor = parseVendor(Comp);
389 Valid = Vendor != UnknownVendor;
393 Valid = OS != UnknownOS;
396 Environment = parseEnvironment(Comp);
397 Valid = Environment != UnknownEnvironment;
401 continue; // Nope, try the next component.
403 // Move the component to the target position, pushing any non-fixed
404 // components that are in the way to the right. This tends to give
405 // good results in the common cases of a forgotten vendor component
406 // or a wrongly positioned environment.
408 // Insert left, pushing the existing components to the right. For
409 // example, a-b-i386 -> i386-a-b when moving i386 to the front.
410 StringRef CurrentComponent(""); // The empty component.
411 // Replace the component we are moving with an empty component.
412 std::swap(CurrentComponent, Components[Idx]);
413 // Insert the component being moved at Pos, displacing any existing
414 // components to the right.
415 for (unsigned i = Pos; !CurrentComponent.empty(); ++i) {
416 // Skip over any fixed components.
417 while (i < array_lengthof(Found) && Found[i]) ++i;
418 // Place the component at the new position, getting the component
419 // that was at this position - it will be moved right.
420 std::swap(CurrentComponent, Components[i]);
422 } else if (Pos > Idx) {
423 // Push right by inserting empty components until the component at Idx
424 // reaches the target position Pos. For example, pc-a -> -pc-a when
425 // moving pc to the second position.
427 // Insert one empty component at Idx.
428 StringRef CurrentComponent(""); // The empty component.
429 for (unsigned i = Idx; i < Components.size();) {
430 // Place the component at the new position, getting the component
431 // that was at this position - it will be moved right.
432 std::swap(CurrentComponent, Components[i]);
433 // If it was placed on top of an empty component then we are done.
434 if (CurrentComponent.empty())
436 // Advance to the next component, skipping any fixed components.
437 while (++i < array_lengthof(Found) && Found[i])
440 // The last component was pushed off the end - append it.
441 if (!CurrentComponent.empty())
442 Components.push_back(CurrentComponent);
444 // Advance Idx to the component's new position.
445 while (++Idx < array_lengthof(Found) && Found[Idx]) {}
446 } while (Idx < Pos); // Add more until the final position is reached.
448 assert(Pos < Components.size() && Components[Pos] == Comp &&
449 "Component moved wrong!");
455 // Special case logic goes here. At this point Arch, Vendor and OS have the
456 // correct values for the computed components.
458 // Stick the corrected components back together to form the normalized string.
459 std::string Normalized;
460 for (unsigned i = 0, e = Components.size(); i != e; ++i) {
461 if (i) Normalized += '-';
462 Normalized += Components[i];
467 StringRef Triple::getArchName() const {
468 return StringRef(Data).split('-').first; // Isolate first component
471 StringRef Triple::getVendorName() const {
472 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
473 return Tmp.split('-').first; // Isolate second component
476 StringRef Triple::getOSName() const {
477 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
478 Tmp = Tmp.split('-').second; // Strip second component
479 return Tmp.split('-').first; // Isolate third component
482 StringRef Triple::getEnvironmentName() const {
483 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
484 Tmp = Tmp.split('-').second; // Strip second component
485 return Tmp.split('-').second; // Strip third component
488 StringRef Triple::getOSAndEnvironmentName() const {
489 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
490 return Tmp.split('-').second; // Strip second component
493 static unsigned EatNumber(StringRef &Str) {
494 assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
498 // Consume the leading digit.
499 Result = Result*10 + (Str[0] - '0');
503 } while (!Str.empty() && Str[0] >= '0' && Str[0] <= '9');
508 void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
509 unsigned &Micro) const {
510 StringRef OSName = getOSName();
512 // Assume that the OS portion of the triple starts with the canonical name.
513 StringRef OSTypeName = getOSTypeName(getOS());
514 if (OSName.startswith(OSTypeName))
515 OSName = OSName.substr(OSTypeName.size());
517 // Any unset version defaults to 0.
518 Major = Minor = Micro = 0;
520 // Parse up to three components.
521 unsigned *Components[3] = { &Major, &Minor, &Micro };
522 for (unsigned i = 0; i != 3; ++i) {
523 if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
526 // Consume the leading number.
527 *Components[i] = EatNumber(OSName);
529 // Consume the separator, if present.
530 if (OSName.startswith("."))
531 OSName = OSName.substr(1);
535 bool Triple::getMacOSXVersion(unsigned &Major, unsigned &Minor,
536 unsigned &Micro) const {
537 getOSVersion(Major, Minor, Micro);
540 default: llvm_unreachable("unexpected OS for Darwin triple");
542 // Default to darwin8, i.e., MacOSX 10.4.
545 // Darwin version numbers are skewed from OS X versions.
562 // Ignore the version from the triple. This is only handled because the
563 // the clang driver combines OS X and IOS support into a common Darwin
564 // toolchain that wants to know the OS X version number even when targeting
574 void Triple::setTriple(const Twine &Str) {
578 void Triple::setArch(ArchType Kind) {
579 setArchName(getArchTypeName(Kind));
582 void Triple::setVendor(VendorType Kind) {
583 setVendorName(getVendorTypeName(Kind));
586 void Triple::setOS(OSType Kind) {
587 setOSName(getOSTypeName(Kind));
590 void Triple::setEnvironment(EnvironmentType Kind) {
591 setEnvironmentName(getEnvironmentTypeName(Kind));
594 void Triple::setArchName(StringRef Str) {
595 // Work around a miscompilation bug for Twines in gcc 4.0.3.
596 SmallString<64> Triple;
599 Triple += getVendorName();
601 Triple += getOSAndEnvironmentName();
602 setTriple(Triple.str());
605 void Triple::setVendorName(StringRef Str) {
606 setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
609 void Triple::setOSName(StringRef Str) {
610 if (hasEnvironment())
611 setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
612 "-" + getEnvironmentName());
614 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
617 void Triple::setEnvironmentName(StringRef Str) {
618 setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
622 void Triple::setOSAndEnvironmentName(StringRef Str) {
623 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
626 static unsigned getArchPointerBitWidth(llvm::Triple::ArchType Arch) {
628 case llvm::Triple::UnknownArch:
631 case llvm::Triple::msp430:
634 case llvm::Triple::amdil:
635 case llvm::Triple::arm:
636 case llvm::Triple::cellspu:
637 case llvm::Triple::hexagon:
638 case llvm::Triple::le32:
639 case llvm::Triple::mblaze:
640 case llvm::Triple::mips:
641 case llvm::Triple::mipsel:
642 case llvm::Triple::ppc:
643 case llvm::Triple::ptx32:
644 case llvm::Triple::sparc:
645 case llvm::Triple::tce:
646 case llvm::Triple::thumb:
647 case llvm::Triple::x86:
648 case llvm::Triple::xcore:
651 case llvm::Triple::mips64:
652 case llvm::Triple::mips64el:
653 case llvm::Triple::ppc64:
654 case llvm::Triple::ptx64:
655 case llvm::Triple::sparcv9:
656 case llvm::Triple::x86_64:
659 llvm_unreachable("Invalid architecture value");
662 bool Triple::isArch64Bit() const {
663 return getArchPointerBitWidth(getArch()) == 64;
666 bool Triple::isArch32Bit() const {
667 return getArchPointerBitWidth(getArch()) == 32;
670 bool Triple::isArch16Bit() const {
671 return getArchPointerBitWidth(getArch()) == 16;
674 Triple Triple::get32BitArchVariant() const {
677 case Triple::UnknownArch:
679 T.setArch(UnknownArch);
684 case Triple::cellspu:
685 case Triple::hexagon:
700 case Triple::mips64: T.setArch(Triple::mips); break;
701 case Triple::mips64el: T.setArch(Triple::mipsel); break;
702 case Triple::ppc64: T.setArch(Triple::ppc); break;
703 case Triple::ptx64: T.setArch(Triple::ptx32); break;
704 case Triple::sparcv9: T.setArch(Triple::sparc); break;
705 case Triple::x86_64: T.setArch(Triple::x86); break;
710 Triple Triple::get64BitArchVariant() const {
713 case Triple::UnknownArch:
716 case Triple::cellspu:
717 case Triple::hexagon:
724 T.setArch(UnknownArch);
728 case Triple::mips64el:
731 case Triple::sparcv9:
736 case Triple::mips: T.setArch(Triple::mips64); break;
737 case Triple::mipsel: T.setArch(Triple::mips64el); break;
738 case Triple::ppc: T.setArch(Triple::ppc64); break;
739 case Triple::ptx32: T.setArch(Triple::ptx64); break;
740 case Triple::sparc: T.setArch(Triple::sparcv9); break;
741 case Triple::x86: T.setArch(Triple::x86_64); break;