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"
12 #include "llvm/ADT/SmallString.h"
13 #include "llvm/ADT/STLExtras.h"
14 #include "llvm/ADT/Twine.h"
21 const char *Triple::getArchTypeName(ArchType Kind) {
23 case InvalidArch: return "<invalid>";
24 case UnknownArch: return "unknown";
26 case alpha: return "alpha";
27 case arm: return "arm";
28 case bfin: return "bfin";
29 case cellspu: return "cellspu";
30 case mips: return "mips";
31 case mipsel: return "mipsel";
32 case msp430: return "msp430";
33 case ppc64: return "powerpc64";
34 case ppc: return "powerpc";
35 case sparc: return "sparc";
36 case sparcv9: return "sparcv9";
37 case systemz: return "s390x";
38 case tce: return "tce";
39 case thumb: return "thumb";
40 case x86: return "i386";
41 case x86_64: return "x86_64";
42 case xcore: return "xcore";
43 case mblaze: return "mblaze";
44 case ptx32: return "ptx32";
45 case ptx64: return "ptx64";
51 const char *Triple::getArchTypePrefix(ArchType Kind) {
56 case alpha: return "alpha";
59 case thumb: return "arm";
61 case bfin: return "bfin";
63 case cellspu: return "spu";
66 case ppc: return "ppc";
68 case mblaze: return "mblaze";
71 case sparc: return "sparc";
74 case x86_64: return "x86";
76 case xcore: return "xcore";
78 case ptx32: return "ptx";
79 case ptx64: return "ptx";
83 const char *Triple::getVendorTypeName(VendorType Kind) {
85 case UnknownVendor: return "unknown";
87 case Apple: return "apple";
89 case SCEI: return "scei";
95 const char *Triple::getOSTypeName(OSType Kind) {
97 case UnknownOS: return "unknown";
99 case AuroraUX: return "auroraux";
100 case Cygwin: return "cygwin";
101 case Darwin: return "darwin";
102 case DragonFly: return "dragonfly";
103 case FreeBSD: return "freebsd";
104 case IOS: return "ios";
105 case Linux: return "linux";
106 case Lv2: return "lv2";
107 case MacOSX: return "macosx";
108 case MinGW32: return "mingw32";
109 case NetBSD: return "netbsd";
110 case OpenBSD: return "openbsd";
111 case Psp: return "psp";
112 case Solaris: return "solaris";
113 case Win32: return "win32";
114 case Haiku: return "haiku";
115 case Minix: return "minix";
116 case RTEMS: return "rtems";
122 const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
124 case UnknownEnvironment: return "unknown";
125 case GNU: return "gnu";
126 case GNUEABI: return "gnueabi";
127 case EABI: return "eabi";
128 case MachO: return "macho";
134 Triple::ArchType Triple::getArchTypeForLLVMName(StringRef Name) {
141 if (Name == "cellspu")
145 if (Name == "mipsel")
147 if (Name == "msp430")
153 if (Name == "mblaze")
157 if (Name == "sparcv9")
159 if (Name == "systemz")
167 if (Name == "x86-64")
179 Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
180 // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
181 // archs which Darwin doesn't use.
183 // The matching this routine does is fairly pointless, since it is neither the
184 // complete architecture list, nor a reasonable subset. The problem is that
185 // historically the driver driver accepts this and also ties its -march=
186 // handling to the architecture name, so we need to be careful before removing
189 // This code must be kept in sync with Clang's Darwin specific argument
192 if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
193 Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
194 Str == "ppc7450" || Str == "ppc970")
198 return Triple::ppc64;
200 if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
201 Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
202 Str == "pentIIm5" || Str == "pentium4")
206 return Triple::x86_64;
208 // This is derived from the driver driver.
209 if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
210 Str == "armv6" || Str == "armv7")
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 == "mipsallegrex")
287 else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
290 else if (ArchName == "sparc")
292 else if (ArchName == "sparcv9")
294 else if (ArchName == "s390x")
296 else if (ArchName == "tce")
298 else if (ArchName == "xcore")
300 else if (ArchName == "ptx32")
302 else if (ArchName == "ptx64")
308 Triple::VendorType Triple::ParseVendor(StringRef VendorName) {
309 if (VendorName == "apple")
311 else if (VendorName == "pc")
313 else if (VendorName == "scei")
316 return UnknownVendor;
319 Triple::OSType Triple::ParseOS(StringRef OSName) {
320 if (OSName.startswith("auroraux"))
322 else if (OSName.startswith("cygwin"))
324 else if (OSName.startswith("darwin"))
326 else if (OSName.startswith("dragonfly"))
328 else if (OSName.startswith("freebsd"))
330 else if (OSName.startswith("ios"))
332 else if (OSName.startswith("linux"))
334 else if (OSName.startswith("lv2"))
336 else if (OSName.startswith("macosx"))
338 else if (OSName.startswith("mingw32"))
340 else if (OSName.startswith("netbsd"))
342 else if (OSName.startswith("openbsd"))
344 else if (OSName.startswith("psp"))
346 else if (OSName.startswith("solaris"))
348 else if (OSName.startswith("win32"))
350 else if (OSName.startswith("haiku"))
352 else if (OSName.startswith("minix"))
358 Triple::EnvironmentType Triple::ParseEnvironment(StringRef EnvironmentName) {
359 if (EnvironmentName.startswith("eabi"))
361 else if (EnvironmentName.startswith("gnueabi"))
363 else if (EnvironmentName.startswith("gnu"))
365 else if (EnvironmentName.startswith("macho"))
368 return UnknownEnvironment;
371 void Triple::Parse() const {
372 assert(!isInitialized() && "Invalid parse call.");
374 Arch = ParseArch(getArchName());
375 Vendor = ParseVendor(getVendorName());
376 OS = ParseOS(getOSName());
377 Environment = ParseEnvironment(getEnvironmentName());
379 assert(isInitialized() && "Failed to initialize!");
382 std::string Triple::normalize(StringRef Str) {
383 // Parse into components.
384 SmallVector<StringRef, 4> Components;
385 for (size_t First = 0, Last = 0; Last != StringRef::npos; First = Last + 1) {
386 Last = Str.find('-', First);
387 Components.push_back(Str.slice(First, Last));
390 // If the first component corresponds to a known architecture, preferentially
391 // use it for the architecture. If the second component corresponds to a
392 // known vendor, preferentially use it for the vendor, etc. This avoids silly
393 // component movement when a component parses as (eg) both a valid arch and a
395 ArchType Arch = UnknownArch;
396 if (Components.size() > 0)
397 Arch = ParseArch(Components[0]);
398 VendorType Vendor = UnknownVendor;
399 if (Components.size() > 1)
400 Vendor = ParseVendor(Components[1]);
401 OSType OS = UnknownOS;
402 if (Components.size() > 2)
403 OS = ParseOS(Components[2]);
404 EnvironmentType Environment = UnknownEnvironment;
405 if (Components.size() > 3)
406 Environment = ParseEnvironment(Components[3]);
408 // Note which components are already in their final position. These will not
411 Found[0] = Arch != UnknownArch;
412 Found[1] = Vendor != UnknownVendor;
413 Found[2] = OS != UnknownOS;
414 Found[3] = Environment != UnknownEnvironment;
416 // If they are not there already, permute the components into their canonical
417 // positions by seeing if they parse as a valid architecture, and if so moving
418 // the component to the architecture position etc.
419 for (unsigned Pos = 0; Pos != array_lengthof(Found); ++Pos) {
421 continue; // Already in the canonical position.
423 for (unsigned Idx = 0; Idx != Components.size(); ++Idx) {
424 // Do not reparse any components that already matched.
425 if (Idx < array_lengthof(Found) && Found[Idx])
428 // Does this component parse as valid for the target position?
430 StringRef Comp = Components[Idx];
433 assert(false && "unexpected component type!");
435 Arch = ParseArch(Comp);
436 Valid = Arch != UnknownArch;
439 Vendor = ParseVendor(Comp);
440 Valid = Vendor != UnknownVendor;
444 Valid = OS != UnknownOS;
447 Environment = ParseEnvironment(Comp);
448 Valid = Environment != UnknownEnvironment;
452 continue; // Nope, try the next component.
454 // Move the component to the target position, pushing any non-fixed
455 // components that are in the way to the right. This tends to give
456 // good results in the common cases of a forgotten vendor component
457 // or a wrongly positioned environment.
459 // Insert left, pushing the existing components to the right. For
460 // example, a-b-i386 -> i386-a-b when moving i386 to the front.
461 StringRef CurrentComponent(""); // The empty component.
462 // Replace the component we are moving with an empty component.
463 std::swap(CurrentComponent, Components[Idx]);
464 // Insert the component being moved at Pos, displacing any existing
465 // components to the right.
466 for (unsigned i = Pos; !CurrentComponent.empty(); ++i) {
467 // Skip over any fixed components.
468 while (i < array_lengthof(Found) && Found[i]) ++i;
469 // Place the component at the new position, getting the component
470 // that was at this position - it will be moved right.
471 std::swap(CurrentComponent, Components[i]);
473 } else if (Pos > Idx) {
474 // Push right by inserting empty components until the component at Idx
475 // reaches the target position Pos. For example, pc-a -> -pc-a when
476 // moving pc to the second position.
478 // Insert one empty component at Idx.
479 StringRef CurrentComponent(""); // The empty component.
480 for (unsigned i = Idx; i < Components.size();) {
481 // Place the component at the new position, getting the component
482 // that was at this position - it will be moved right.
483 std::swap(CurrentComponent, Components[i]);
484 // If it was placed on top of an empty component then we are done.
485 if (CurrentComponent.empty())
487 // Advance to the next component, skipping any fixed components.
488 while (++i < array_lengthof(Found) && Found[i])
491 // The last component was pushed off the end - append it.
492 if (!CurrentComponent.empty())
493 Components.push_back(CurrentComponent);
495 // Advance Idx to the component's new position.
496 while (++Idx < array_lengthof(Found) && Found[Idx]) {}
497 } while (Idx < Pos); // Add more until the final position is reached.
499 assert(Pos < Components.size() && Components[Pos] == Comp &&
500 "Component moved wrong!");
506 // Special case logic goes here. At this point Arch, Vendor and OS have the
507 // correct values for the computed components.
509 // Stick the corrected components back together to form the normalized string.
510 std::string Normalized;
511 for (unsigned i = 0, e = Components.size(); i != e; ++i) {
512 if (i) Normalized += '-';
513 Normalized += Components[i];
518 StringRef Triple::getArchName() const {
519 return StringRef(Data).split('-').first; // Isolate first component
522 StringRef Triple::getVendorName() const {
523 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
524 return Tmp.split('-').first; // Isolate second component
527 StringRef Triple::getOSName() const {
528 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
529 Tmp = Tmp.split('-').second; // Strip second component
530 return Tmp.split('-').first; // Isolate third component
533 StringRef Triple::getEnvironmentName() const {
534 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
535 Tmp = Tmp.split('-').second; // Strip second component
536 return Tmp.split('-').second; // Strip third component
539 StringRef Triple::getOSAndEnvironmentName() const {
540 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
541 return Tmp.split('-').second; // Strip second component
544 static unsigned EatNumber(StringRef &Str) {
545 assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
549 // Consume the leading digit.
550 Result = Result*10 + (Str[0] - '0');
554 } while (!Str.empty() && Str[0] >= '0' && Str[0] <= '9');
559 void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
560 unsigned &Micro) const {
561 StringRef OSName = getOSName();
563 // Assume that the OS portion of the triple starts with the canonical name.
564 StringRef OSTypeName = getOSTypeName(getOS());
565 if (OSName.startswith(OSTypeName))
566 OSName = OSName.substr(OSTypeName.size());
568 // Any unset version defaults to 0.
569 Major = Minor = Micro = 0;
571 // Parse up to three components.
572 unsigned *Components[3] = { &Major, &Minor, &Micro };
573 for (unsigned i = 0; i != 3; ++i) {
574 if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
577 // Consume the leading number.
578 *Components[i] = EatNumber(OSName);
580 // Consume the separator, if present.
581 if (OSName.startswith("."))
582 OSName = OSName.substr(1);
586 void Triple::setTriple(const Twine &Str) {
591 void Triple::setArch(ArchType Kind) {
592 setArchName(getArchTypeName(Kind));
595 void Triple::setVendor(VendorType Kind) {
596 setVendorName(getVendorTypeName(Kind));
599 void Triple::setOS(OSType Kind) {
600 setOSName(getOSTypeName(Kind));
603 void Triple::setEnvironment(EnvironmentType Kind) {
604 setEnvironmentName(getEnvironmentTypeName(Kind));
607 void Triple::setArchName(StringRef Str) {
608 // Work around a miscompilation bug for Twines in gcc 4.0.3.
609 SmallString<64> Triple;
612 Triple += getVendorName();
614 Triple += getOSAndEnvironmentName();
615 setTriple(Triple.str());
618 void Triple::setVendorName(StringRef Str) {
619 setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
622 void Triple::setOSName(StringRef Str) {
623 if (hasEnvironment())
624 setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
625 "-" + getEnvironmentName());
627 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
630 void Triple::setEnvironmentName(StringRef Str) {
631 setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
635 void Triple::setOSAndEnvironmentName(StringRef Str) {
636 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);