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 ptx: return "ptx";
50 const char *Triple::getArchTypePrefix(ArchType Kind) {
55 case alpha: return "alpha";
58 case thumb: return "arm";
60 case bfin: return "bfin";
62 case cellspu: return "spu";
65 case ppc: return "ppc";
67 case mblaze: return "mblaze";
70 case sparc: return "sparc";
73 case x86_64: return "x86";
75 case xcore: return "xcore";
77 case ptx: return "ptx";
81 const char *Triple::getVendorTypeName(VendorType Kind) {
83 case UnknownVendor: return "unknown";
85 case Apple: return "apple";
87 case SCEI: return "scei";
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 Linux: return "linux";
104 case Lv2: return "lv2";
105 case MacOSX: return "macosx";
106 case MinGW32: return "mingw32";
107 case NetBSD: return "netbsd";
108 case OpenBSD: return "openbsd";
109 case Psp: return "psp";
110 case Solaris: return "solaris";
111 case Win32: return "win32";
112 case Haiku: return "haiku";
113 case Minix: return "minix";
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")
150 if (Name == "mblaze")
154 if (Name == "sparcv9")
156 if (Name == "systemz")
164 if (Name == "x86-64")
174 Triple::ArchType Triple::getArchTypeForDarwinArchName(StringRef Str) {
175 // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for
176 // archs which Darwin doesn't use.
178 // The matching this routine does is fairly pointless, since it is neither the
179 // complete architecture list, nor a reasonable subset. The problem is that
180 // historically the driver driver accepts this and also ties its -march=
181 // handling to the architecture name, so we need to be careful before removing
184 // This code must be kept in sync with Clang's Darwin specific argument
187 if (Str == "ppc" || Str == "ppc601" || Str == "ppc603" || Str == "ppc604" ||
188 Str == "ppc604e" || Str == "ppc750" || Str == "ppc7400" ||
189 Str == "ppc7450" || Str == "ppc970")
193 return Triple::ppc64;
195 if (Str == "i386" || Str == "i486" || Str == "i486SX" || Str == "pentium" ||
196 Str == "i586" || Str == "pentpro" || Str == "i686" || Str == "pentIIm3" ||
197 Str == "pentIIm5" || Str == "pentium4")
201 return Triple::x86_64;
203 // This is derived from the driver driver.
204 if (Str == "arm" || Str == "armv4t" || Str == "armv5" || Str == "xscale" ||
205 Str == "armv6" || Str == "armv7")
211 return Triple::UnknownArch;
214 // Returns architecture name that is understood by the target assembler.
215 const char *Triple::getArchNameForAssembler() {
216 if (!isOSDarwin() && getVendor() != Triple::Apple)
219 StringRef Str = getArchName();
224 if (Str == "powerpc")
226 if (Str == "powerpc64")
228 if (Str == "mblaze" || Str == "microblaze")
232 if (Str == "armv4t" || Str == "thumbv4t")
234 if (Str == "armv5" || Str == "armv5e" || Str == "thumbv5"
235 || Str == "thumbv5e")
237 if (Str == "armv6" || Str == "thumbv6")
239 if (Str == "armv7" || Str == "thumbv7")
248 Triple::ArchType Triple::ParseArch(StringRef ArchName) {
249 if (ArchName.size() == 4 && ArchName[0] == 'i' &&
250 ArchName[2] == '8' && ArchName[3] == '6' &&
251 ArchName[1] - '3' < 6) // i[3-9]86
253 else if (ArchName == "amd64" || ArchName == "x86_64")
255 else if (ArchName == "bfin")
257 else if (ArchName == "powerpc")
259 else if ((ArchName == "powerpc64") || (ArchName == "ppu"))
261 else if (ArchName == "mblaze")
263 else if (ArchName == "arm" ||
264 ArchName.startswith("armv") ||
265 ArchName == "xscale")
267 else if (ArchName == "thumb" ||
268 ArchName.startswith("thumbv"))
270 else if (ArchName.startswith("alpha"))
272 else if (ArchName == "spu" || ArchName == "cellspu")
274 else if (ArchName == "msp430")
276 else if (ArchName == "mips" || ArchName == "mipsallegrex")
278 else if (ArchName == "mipsel" || ArchName == "mipsallegrexel" ||
281 else if (ArchName == "sparc")
283 else if (ArchName == "sparcv9")
285 else if (ArchName == "s390x")
287 else if (ArchName == "tce")
289 else if (ArchName == "xcore")
291 else if (ArchName == "ptx")
297 Triple::VendorType Triple::ParseVendor(StringRef VendorName) {
298 if (VendorName == "apple")
300 else if (VendorName == "pc")
302 else if (VendorName == "scei")
305 return UnknownVendor;
308 Triple::OSType Triple::ParseOS(StringRef OSName) {
309 if (OSName.startswith("auroraux"))
311 else if (OSName.startswith("cygwin"))
313 else if (OSName.startswith("darwin"))
315 else if (OSName.startswith("dragonfly"))
317 else if (OSName.startswith("freebsd"))
319 else if (OSName.startswith("ios"))
321 else if (OSName.startswith("linux"))
323 else if (OSName.startswith("lv2"))
325 else if (OSName.startswith("macosx"))
327 else if (OSName.startswith("mingw32"))
329 else if (OSName.startswith("netbsd"))
331 else if (OSName.startswith("openbsd"))
333 else if (OSName.startswith("psp"))
335 else if (OSName.startswith("solaris"))
337 else if (OSName.startswith("win32"))
339 else if (OSName.startswith("haiku"))
341 else if (OSName.startswith("minix"))
347 Triple::EnvironmentType Triple::ParseEnvironment(StringRef EnvironmentName) {
348 if (EnvironmentName.startswith("eabi"))
350 else if (EnvironmentName.startswith("gnueabi"))
352 else if (EnvironmentName.startswith("gnu"))
354 else if (EnvironmentName.startswith("macho"))
357 return UnknownEnvironment;
360 void Triple::Parse() const {
361 assert(!isInitialized() && "Invalid parse call.");
363 Arch = ParseArch(getArchName());
364 Vendor = ParseVendor(getVendorName());
365 OS = ParseOS(getOSName());
366 Environment = ParseEnvironment(getEnvironmentName());
368 assert(isInitialized() && "Failed to initialize!");
371 std::string Triple::normalize(StringRef Str) {
372 // Parse into components.
373 SmallVector<StringRef, 4> Components;
374 for (size_t First = 0, Last = 0; Last != StringRef::npos; First = Last + 1) {
375 Last = Str.find('-', First);
376 Components.push_back(Str.slice(First, Last));
379 // If the first component corresponds to a known architecture, preferentially
380 // use it for the architecture. If the second component corresponds to a
381 // known vendor, preferentially use it for the vendor, etc. This avoids silly
382 // component movement when a component parses as (eg) both a valid arch and a
384 ArchType Arch = UnknownArch;
385 if (Components.size() > 0)
386 Arch = ParseArch(Components[0]);
387 VendorType Vendor = UnknownVendor;
388 if (Components.size() > 1)
389 Vendor = ParseVendor(Components[1]);
390 OSType OS = UnknownOS;
391 if (Components.size() > 2)
392 OS = ParseOS(Components[2]);
393 EnvironmentType Environment = UnknownEnvironment;
394 if (Components.size() > 3)
395 Environment = ParseEnvironment(Components[3]);
397 // Note which components are already in their final position. These will not
400 Found[0] = Arch != UnknownArch;
401 Found[1] = Vendor != UnknownVendor;
402 Found[2] = OS != UnknownOS;
403 Found[3] = Environment != UnknownEnvironment;
405 // If they are not there already, permute the components into their canonical
406 // positions by seeing if they parse as a valid architecture, and if so moving
407 // the component to the architecture position etc.
408 for (unsigned Pos = 0; Pos != array_lengthof(Found); ++Pos) {
410 continue; // Already in the canonical position.
412 for (unsigned Idx = 0; Idx != Components.size(); ++Idx) {
413 // Do not reparse any components that already matched.
414 if (Idx < array_lengthof(Found) && Found[Idx])
417 // Does this component parse as valid for the target position?
419 StringRef Comp = Components[Idx];
422 assert(false && "unexpected component type!");
424 Arch = ParseArch(Comp);
425 Valid = Arch != UnknownArch;
428 Vendor = ParseVendor(Comp);
429 Valid = Vendor != UnknownVendor;
433 Valid = OS != UnknownOS;
436 Environment = ParseEnvironment(Comp);
437 Valid = Environment != UnknownEnvironment;
441 continue; // Nope, try the next component.
443 // Move the component to the target position, pushing any non-fixed
444 // components that are in the way to the right. This tends to give
445 // good results in the common cases of a forgotten vendor component
446 // or a wrongly positioned environment.
448 // Insert left, pushing the existing components to the right. For
449 // example, a-b-i386 -> i386-a-b when moving i386 to the front.
450 StringRef CurrentComponent(""); // The empty component.
451 // Replace the component we are moving with an empty component.
452 std::swap(CurrentComponent, Components[Idx]);
453 // Insert the component being moved at Pos, displacing any existing
454 // components to the right.
455 for (unsigned i = Pos; !CurrentComponent.empty(); ++i) {
456 // Skip over any fixed components.
457 while (i < array_lengthof(Found) && Found[i]) ++i;
458 // Place the component at the new position, getting the component
459 // that was at this position - it will be moved right.
460 std::swap(CurrentComponent, Components[i]);
462 } else if (Pos > Idx) {
463 // Push right by inserting empty components until the component at Idx
464 // reaches the target position Pos. For example, pc-a -> -pc-a when
465 // moving pc to the second position.
467 // Insert one empty component at Idx.
468 StringRef CurrentComponent(""); // The empty component.
469 for (unsigned i = Idx; i < Components.size();) {
470 // Place the component at the new position, getting the component
471 // that was at this position - it will be moved right.
472 std::swap(CurrentComponent, Components[i]);
473 // If it was placed on top of an empty component then we are done.
474 if (CurrentComponent.empty())
476 // Advance to the next component, skipping any fixed components.
477 while (++i < array_lengthof(Found) && Found[i])
480 // The last component was pushed off the end - append it.
481 if (!CurrentComponent.empty())
482 Components.push_back(CurrentComponent);
484 // Advance Idx to the component's new position.
485 while (++Idx < array_lengthof(Found) && Found[Idx]) {}
486 } while (Idx < Pos); // Add more until the final position is reached.
488 assert(Pos < Components.size() && Components[Pos] == Comp &&
489 "Component moved wrong!");
495 // Special case logic goes here. At this point Arch, Vendor and OS have the
496 // correct values for the computed components.
498 // Stick the corrected components back together to form the normalized string.
499 std::string Normalized;
500 for (unsigned i = 0, e = Components.size(); i != e; ++i) {
501 if (i) Normalized += '-';
502 Normalized += Components[i];
507 StringRef Triple::getArchName() const {
508 return StringRef(Data).split('-').first; // Isolate first component
511 StringRef Triple::getVendorName() const {
512 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
513 return Tmp.split('-').first; // Isolate second component
516 StringRef Triple::getOSName() const {
517 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
518 Tmp = Tmp.split('-').second; // Strip second component
519 return Tmp.split('-').first; // Isolate third component
522 StringRef Triple::getEnvironmentName() const {
523 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
524 Tmp = Tmp.split('-').second; // Strip second component
525 return Tmp.split('-').second; // Strip third component
528 StringRef Triple::getOSAndEnvironmentName() const {
529 StringRef Tmp = StringRef(Data).split('-').second; // Strip first component
530 return Tmp.split('-').second; // Strip second component
533 static unsigned EatNumber(StringRef &Str) {
534 assert(!Str.empty() && Str[0] >= '0' && Str[0] <= '9' && "Not a number");
538 // Consume the leading digit.
539 Result = Result*10 + (Str[0] - '0');
543 } while (!Str.empty() && Str[0] >= '0' && Str[0] <= '9');
548 void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
549 unsigned &Micro) const {
550 StringRef OSName = getOSName();
552 // Assume that the OS portion of the triple starts with the canonical name.
553 StringRef OSTypeName = getOSTypeName(getOS());
554 if (OSName.startswith(OSTypeName))
555 OSName = OSName.substr(OSTypeName.size());
557 // Any unset version defaults to 0.
558 Major = Minor = Micro = 0;
560 // Parse up to three components.
561 unsigned *Components[3] = { &Major, &Minor, &Micro };
562 for (unsigned i = 0; i != 3; ++i) {
563 if (OSName.empty() || OSName[0] < '0' || OSName[0] > '9')
566 // Consume the leading number.
567 *Components[i] = EatNumber(OSName);
569 // Consume the separator, if present.
570 if (OSName.startswith("."))
571 OSName = OSName.substr(1);
575 void Triple::setTriple(const Twine &Str) {
580 void Triple::setArch(ArchType Kind) {
581 setArchName(getArchTypeName(Kind));
584 void Triple::setVendor(VendorType Kind) {
585 setVendorName(getVendorTypeName(Kind));
588 void Triple::setOS(OSType Kind) {
589 setOSName(getOSTypeName(Kind));
592 void Triple::setEnvironment(EnvironmentType Kind) {
593 setEnvironmentName(getEnvironmentTypeName(Kind));
596 void Triple::setArchName(StringRef Str) {
597 // Work around a miscompilation bug for Twines in gcc 4.0.3.
598 SmallString<64> Triple;
601 Triple += getVendorName();
603 Triple += getOSAndEnvironmentName();
604 setTriple(Triple.str());
607 void Triple::setVendorName(StringRef Str) {
608 setTriple(getArchName() + "-" + Str + "-" + getOSAndEnvironmentName());
611 void Triple::setOSName(StringRef Str) {
612 if (hasEnvironment())
613 setTriple(getArchName() + "-" + getVendorName() + "-" + Str +
614 "-" + getEnvironmentName());
616 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);
619 void Triple::setEnvironmentName(StringRef Str) {
620 setTriple(getArchName() + "-" + getVendorName() + "-" + getOSName() +
624 void Triple::setOSAndEnvironmentName(StringRef Str) {
625 setTriple(getArchName() + "-" + getVendorName() + "-" + Str);