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/STLExtras.h"
16 const char *Triple::getArchTypeName(ArchType Kind) {
18 case InvalidArch: return "<invalid>";
19 case UnknownArch: return "unknown";
21 case alpha: return "alpha";
22 case arm: return "arm";
23 case bfin: return "bfin";
24 case cellspu: return "cellspu";
25 case mips: return "mips";
26 case mipsel: return "mipsel";
27 case msp430: return "msp430";
28 case ppc64: return "powerpc64";
29 case ppc: return "powerpc";
30 case sparc: return "sparc";
31 case sparcv9: return "sparcv9";
32 case systemz: return "s390x";
33 case tce: return "tce";
34 case thumb: return "thumb";
35 case x86: return "i386";
36 case x86_64: return "x86_64";
37 case xcore: return "xcore";
38 case mblaze: return "mblaze";
39 case ptx32: return "ptx32";
40 case ptx64: return "ptx64";
46 const char *Triple::getArchTypePrefix(ArchType Kind) {
51 case alpha: return "alpha";
54 case thumb: return "arm";
56 case bfin: return "bfin";
58 case cellspu: return "spu";
61 case ppc: return "ppc";
63 case mblaze: return "mblaze";
66 case sparc: return "sparc";
69 case x86_64: return "x86";
71 case xcore: return "xcore";
73 case ptx32: return "ptx";
74 case ptx64: return "ptx";
78 const char *Triple::getVendorTypeName(VendorType Kind) {
80 case UnknownVendor: return "unknown";
82 case Apple: return "apple";
84 case SCEI: return "scei";
90 const char *Triple::getOSTypeName(OSType Kind) {
92 case UnknownOS: return "unknown";
94 case AuroraUX: return "auroraux";
95 case Cygwin: return "cygwin";
96 case Darwin: return "darwin";
97 case DragonFly: return "dragonfly";
98 case FreeBSD: return "freebsd";
99 case IOS: return "ios";
100 case KFreeBSD: return "kfreebsd";
101 case Linux: return "linux";
102 case Lv2: return "lv2";
103 case MacOSX: return "macosx";
104 case MinGW32: return "mingw32";
105 case NetBSD: return "netbsd";
106 case OpenBSD: return "openbsd";
107 case Psp: return "psp";
108 case Solaris: return "solaris";
109 case Win32: return "win32";
110 case Haiku: return "haiku";
111 case Minix: return "minix";
112 case RTEMS: return "rtems";
113 case NativeClient: return "nacl";
119 const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
121 case UnknownEnvironment: return "unknown";
122 case GNU: return "gnu";
123 case GNUEABI: return "gnueabi";
124 case EABI: return "eabi";
125 case MachO: return "macho";
131 Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
138 if (Name == "cellspu")
142 if (Name == "mipsel")
144 if (Name == "msp430")
152 if (Name == "mblaze")
156 if (Name == "sparcv9")
158 if (Name == "systemz")
166 if (Name == "x86-64")
178 Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
179 // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
180 // archs which Darwin doesn't use.
182 // The matching this routine does is fairly pointless, since it is neither the
183 // complete architecture list, nor a reasonable subset. The problem is that
184 // historically the driver driver accepts this and also ties its -march=
185 // handling to the architecture name, so we need to be careful before removing
188 // This code must be kept in sync with Clang's Darwin specific argument
191 if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
192 Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
193 Str == "ppc7450" || Str == "ppc970")
197 return Triple::ppc64;
199 if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
200 Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
201 Str == "pentIIm5" || Str == "pentium4")
205 return Triple::x86_64;
207 // This is derived from the driver driver.
208 if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
209 Str == "armv6" || Str == "armv7" || Str == "armv7f" || Str == "armv7k" ||
214 return Triple::ptx32;
216 return Triple::ptx64;
218 return Triple::UnknownArch;
221 // Returns architecture name that is understood by the target assembler.
222 const char *Triple::getArchNameForAssembler() {
223 if (!isOSDarwin() && getVendor() != Triple::Apple)
226 StringRef Str = getArchName();
231 if (Str == "powerpc")
233 if (Str == "powerpc64")
235 if (Str == "mblaze" || Str == "microblaze")
239 if (Str == "armv4t" || Str == "thumbv4t")
241 if (Str == "armv5" || Str == "armv5e" || Str == "thumbv5"
242 || Str == "thumbv5e")
244 if (Str == "armv6" || Str == "thumbv6")
246 if (Str == "armv7" || Str == "thumbv7")
257 Triple::ArchType Triple::ParseArch(StringRef ArchName) {
258 if (ArchName.size() == 4 && ArchName[0] == 'i' &&
259 ArchName[2] == '8' && ArchName[3] == '6' &&
260 ArchName[1] - '3' < 6) // i[3-9]86
262 else if (ArchName == "amd64" || ArchName == "x86_64")
264 else if (ArchName == "bfin")
266 else if (ArchName == "powerpc")
268 else if ((ArchName == "powerpc64") || (ArchName == "ppu"))
270 else if (ArchName == "mblaze")
272 else if (ArchName == "arm" ||
273 ArchName.startswith("armv") ||
274 ArchName == "xscale")
276 else if (ArchName == "thumb" ||
277 ArchName.startswith("thumbv"))
279 else if (ArchName.startswith("alpha"))
281 else if (ArchName == "spu" || ArchName == "cellspu")
283 else if (ArchName == "msp430")
285 else if (ArchName == "mips" || ArchName == "mipseb" ||
286 ArchName == "mipsallegrex")
288 else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
291 else if (ArchName == "sparc")
293 else if (ArchName == "sparcv9")
295 else if (ArchName == "s390x")
297 else if (ArchName == "tce")
299 else if (ArchName == "xcore")
301 else if (ArchName == "ptx32")
303 else if (ArchName == "ptx64")
309 Triple::VendorType Triple::ParseVendor(StringRef VendorName) {
310 if (VendorName == "apple")
312 else if (VendorName == "pc")
314 else if (VendorName == "scei")
317 return UnknownVendor;
320 Triple::OSType Triple::ParseOS(StringRef OSName) {
321 if (OSName.startswith("auroraux"))
323 else if (OSName.startswith("cygwin"))
325 else if (OSName.startswith("darwin"))
327 else if (OSName.startswith("dragonfly"))
329 else if (OSName.startswith("freebsd"))
331 else if (OSName.startswith("ios"))
333 else if (OSName.startswith("kfreebsd"))
335 else if (OSName.startswith("linux"))
337 else if (OSName.startswith("lv2"))
339 else if (OSName.startswith("macosx"))
341 else if (OSName.startswith("mingw32"))
343 else if (OSName.startswith("netbsd"))
345 else if (OSName.startswith("openbsd"))
347 else if (OSName.startswith("psp"))
349 else if (OSName.startswith("solaris"))
351 else if (OSName.startswith("win32"))
353 else if (OSName.startswith("haiku"))
355 else if (OSName.startswith("minix"))
357 else if (OSName.startswith("rtems"))
363 Triple::EnvironmentType Triple::ParseEnvironment(StringRef EnvironmentName) {
364 if (EnvironmentName.startswith("eabi"))
366 else if (EnvironmentName.startswith("gnueabi"))
368 else if (EnvironmentName.startswith("gnu"))
370 else if (EnvironmentName.startswith("macho"))
373 return UnknownEnvironment;
376 void Triple::Parse() const {
377 assert(!isInitialized() && "Invalid parse call.");
379 Arch = ParseArch(getArchName());
380 Vendor = ParseVendor(getVendorName());
381 OS = ParseOS(getOSName());
382 Environment = ParseEnvironment(getEnvironmentName());
384 assert(isInitialized() && "Failed to initialize!");
387 std::string Triple::normalize(StringRef Str) {
388 // Parse into components.
389 SmallVector<StringRef, 4> Components;
390 for (size_t First = 0, Last = 0; Last != StringRef::npos; First = Last + 1) {
391 Last = Str.find('-', First);
392 Components.push_back(Str.slice(First, Last));
395 // If the first component corresponds to a known architecture, preferentially
396 // use it for the architecture. If the second component corresponds to a
397 // known vendor, preferentially use it for the vendor, etc. This avoids silly
398 // component movement when a component parses as (eg) both a valid arch and a
400 ArchType Arch = UnknownArch;
401 if (Components.size() > 0)
402 Arch = ParseArch(Components[0]);
403 VendorType Vendor = UnknownVendor;
404 if (Components.size() > 1)
405 Vendor = ParseVendor(Components[1]);
406 OSType OS = UnknownOS;
407 if (Components.size() > 2)
408 OS = ParseOS(Components[2]);
409 EnvironmentType Environment = UnknownEnvironment;
410 if (Components.size() > 3)
411 Environment = ParseEnvironment(Components[3]);
413 // Note which components are already in their final position. These will not
416 Found[0] = Arch != UnknownArch;
417 Found[1] = Vendor != UnknownVendor;
418 Found[2] = OS != UnknownOS;
419 Found[3] = Environment != UnknownEnvironment;
421 // If they are not there already, permute the components into their canonical
422 // positions by seeing if they parse as a valid architecture, and if so moving
423 // the component to the architecture position etc.
424 for (unsigned Pos = 0; Pos != array_lengthof(Found); ++Pos) {
426 continue; // Already in the canonical position.
428 for (unsigned Idx = 0; Idx != Components.size(); ++Idx) {
429 // Do not reparse any components that already matched.
430 if (Idx < array_lengthof(Found) && Found[Idx])
433 // Does this component parse as valid for the target position?
435 StringRef Comp = Components[Idx];
438 assert(false && "unexpected component type!");
440 Arch = ParseArch(Comp);
441 Valid = Arch != UnknownArch;
444 Vendor = ParseVendor(Comp);
445 Valid = Vendor != UnknownVendor;
449 Valid = OS != UnknownOS;
452 Environment = ParseEnvironment(Comp);
453 Valid = Environment != UnknownEnvironment;
457 continue; // Nope, try the next component.
459 // Move the component to the target position, pushing any non-fixed
460 // components that are in the way to the right. This tends to give
461 // good results in the common cases of a forgotten vendor component
462 // or a wrongly positioned environment.
464 // Insert left, pushing the existing components to the right. For
465 // example, a-b-i386 -> i386-a-b when moving i386 to the front.
466 StringRef CurrentComponent(""); // The empty component.
467 // Replace the component we are moving with an empty component.
468 std::swap(CurrentComponent, Components[Idx]);
469 // Insert the component being moved at Pos, displacing any existing
470 // components to the right.
471 for (unsigned i = Pos; !CurrentComponent.empty(); ++i) {
472 // Skip over any fixed components.
473 while (i < array_lengthof(Found) && Found[i]) ++i;
474 // Place the component at the new position, getting the component
475 // that was at this position - it will be moved right.
476 std::swap(CurrentComponent, Components[i]);
478 } else if (Pos > Idx) {
479 // Push right by inserting empty components until the component at Idx
480 // reaches the target position Pos. For example, pc-a -> -pc-a when
481 // moving pc to the second position.
483 // Insert one empty component at Idx.
484 StringRef CurrentComponent(""); // The empty component.
485 for (unsigned i = Idx; i < Components.size();) {
486 // Place the component at the new position, getting the component
487 // that was at this position - it will be moved right.
488 std::swap(CurrentComponent, Components[i]);
489 // If it was placed on top of an empty component then we are done.
490 if (CurrentComponent.empty())
492 // Advance to the next component, skipping any fixed components.
493 while (++i < array_lengthof(Found) && Found[i])
496 // The last component was pushed off the end - append it.
497 if (!CurrentComponent.empty())
498 Components.push_back(CurrentComponent);
500 // Advance Idx to the component's new position.
501 while (++Idx < array_lengthof(Found) && Found[Idx]) {}
502 } while (Idx < Pos); // Add more until the final position is reached.
504 assert(Pos < Components.size() && Components[Pos] == Comp &&
505 "Component moved wrong!");
511 // Special case logic goes here. At this point Arch, Vendor and OS have the
512 // correct values for the computed components.
514 // Stick the corrected components back together to form the normalized string.
515 std::string Normalized;
516 for (unsigned i = 0, e = Components.size(); i != e; ++i) {
517 if (i) Normalized += '-';
518 Normalized += Components[i];
523 StringRef Triple::getArchName() const {
524 return StringRef(Data).split('-').first; // Isolate first component
527 StringRef Triple::getVendorName() const {
528 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
529 return Tmp.split('-').first; // Isolate second component
532 StringRef Triple::getOSName() const {
533 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
534 Tmp = Tmp.split('-').second; // Strip second component
535 return Tmp.split('-').first; // Isolate third component
538 StringRef Triple::getEnvironmentName() const {
539 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
540 Tmp = Tmp.split('-').second; // Strip second component
541 return Tmp.split('-').second; // Strip third component
544 StringRef Triple::getOSAndEnvironmentName() const {
545 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
546 return Tmp.split('-').second; // Strip second component
549 static unsigned EatNumber(StringRef &Str) {
550 assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
554 // Consume the leading digit.
555 Result = Result*10 + (Str[0] - '0');
559 } while (!Str.empty() && Str[0] >= '0' && Str[0] <= '9');
564 void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
565 unsigned &Micro) const {
566 StringRef OSName = getOSName();
568 // Assume that the OS portion of the triple starts with the canonical name.
569 StringRef OSTypeName = getOSTypeName(getOS());
570 if (OSName.startswith(OSTypeName))
571 OSName = OSName.substr(OSTypeName.size());
573 // Any unset version defaults to 0.
574 Major = Minor = Micro = 0;
576 // Parse up to three components.
577 unsigned *Components[3] = { &Major, &Minor, &Micro };
578 for (unsigned i = 0; i != 3; ++i) {
579 if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
582 // Consume the leading number.
583 *Components[i] = EatNumber(OSName);
585 // Consume the separator, if present.
586 if (OSName.startswith("."))
587 OSName = OSName.substr(1);
591 void Triple::setTriple(const Twine &Str) {
596 void Triple::setArch(ArchType Kind) {
597 setArchName(getArchTypeName(Kind));
600 void Triple::setVendor(VendorType Kind) {
601 setVendorName(getVendorTypeName(Kind));
604 void Triple::setOS(OSType Kind) {
605 setOSName(getOSTypeName(Kind));
608 void Triple::setEnvironment(EnvironmentType Kind) {
609 setEnvironmentName(getEnvironmentTypeName(Kind));
612 void Triple::setArchName(StringRef Str) {
613 // Work around a miscompilation bug for Twines in gcc 4.0.3.
614 SmallString<64> Triple;
617 Triple += getVendorName();
619 Triple += getOSAndEnvironmentName();
620 setTriple(Triple.str());
623 void Triple::setVendorName(StringRef Str) {
624 setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
627 void Triple::setOSName(StringRef Str) {
628 if (hasEnvironment())
629 setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
630 "-" + getEnvironmentName());
632 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
635 void Triple::setEnvironmentName(StringRef Str) {
636 setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
640 void Triple::setOSAndEnvironmentName(StringRef Str) {
641 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);