1 //===--- PPC.cpp - Implement PPC target feature support -------------------===//
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 PPC TargetInfo objects.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "PPC.h"
14 #include "clang/Basic/Diagnostic.h"
15 #include "clang/Basic/MacroBuilder.h"
16 #include "clang/Basic/TargetBuiltins.h"
17 
18 using namespace clang;
19 using namespace clang::targets;
20 
21 const Builtin::Info PPCTargetInfo::BuiltinInfo[] = {
22 #define BUILTIN(ID, TYPE, ATTRS)                                               \
23   {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
24 #define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
25   {#ID, TYPE, ATTRS, HEADER, ALL_LANGUAGES, nullptr},
26 #include "clang/Basic/BuiltinsPPC.def"
27 };
28 
29 /// handleTargetFeatures - Perform initialization based on the user
30 /// configured set of features.
31 bool PPCTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
32                                          DiagnosticsEngine &Diags) {
33   FloatABI = HardFloat;
34   for (const auto &Feature : Features) {
35     if (Feature == "+altivec") {
36       HasAltivec = true;
37     } else if (Feature == "+vsx") {
38       HasVSX = true;
39     } else if (Feature == "+bpermd") {
40       HasBPERMD = true;
41     } else if (Feature == "+extdiv") {
42       HasExtDiv = true;
43     } else if (Feature == "+power8-vector") {
44       HasP8Vector = true;
45     } else if (Feature == "+crypto") {
46       HasP8Crypto = true;
47     } else if (Feature == "+direct-move") {
48       HasDirectMove = true;
49     } else if (Feature == "+htm") {
50       HasHTM = true;
51     } else if (Feature == "+float128") {
52       HasFloat128 = true;
53     } else if (Feature == "+power9-vector") {
54       HasP9Vector = true;
55     } else if (Feature == "+power10-vector") {
56       HasP10Vector = true;
57     } else if (Feature == "+pcrelative-memops") {
58       HasPCRelativeMemops = true;
59     } else if (Feature == "+spe") {
60       HasSPE = true;
61       LongDoubleWidth = LongDoubleAlign = 64;
62       LongDoubleFormat = &llvm::APFloat::IEEEdouble();
63     } else if (Feature == "-hard-float") {
64       FloatABI = SoftFloat;
65     } else if (Feature == "+paired-vector-memops") {
66       PairedVectorMemops = true;
67     } else if (Feature == "+mma") {
68       HasMMA = true;
69     }
70     // TODO: Finish this list and add an assert that we've handled them
71     // all.
72   }
73 
74   return true;
75 }
76 
77 /// PPCTargetInfo::getTargetDefines - Return a set of the PowerPC-specific
78 /// #defines that are not tied to a specific subtarget.
79 void PPCTargetInfo::getTargetDefines(const LangOptions &Opts,
80                                      MacroBuilder &Builder) const {
81   // Target identification.
82   Builder.defineMacro("__ppc__");
83   Builder.defineMacro("__PPC__");
84   Builder.defineMacro("_ARCH_PPC");
85   Builder.defineMacro("__powerpc__");
86   Builder.defineMacro("__POWERPC__");
87   if (PointerWidth == 64) {
88     Builder.defineMacro("_ARCH_PPC64");
89     Builder.defineMacro("__powerpc64__");
90     Builder.defineMacro("__ppc64__");
91     Builder.defineMacro("__PPC64__");
92   }
93 
94   // Target properties.
95   if (getTriple().getArch() == llvm::Triple::ppc64le) {
96     Builder.defineMacro("_LITTLE_ENDIAN");
97   } else {
98     if (!getTriple().isOSNetBSD() &&
99         !getTriple().isOSOpenBSD())
100       Builder.defineMacro("_BIG_ENDIAN");
101   }
102 
103   // ABI options.
104   if (ABI == "elfv1")
105     Builder.defineMacro("_CALL_ELF", "1");
106   if (ABI == "elfv2")
107     Builder.defineMacro("_CALL_ELF", "2");
108 
109   // This typically is only for a new enough linker (bfd >= 2.16.2 or gold), but
110   // our support post-dates this and it should work on all 64-bit ppc linux
111   // platforms. It is guaranteed to work on all elfv2 platforms.
112   if (getTriple().getOS() == llvm::Triple::Linux && PointerWidth == 64)
113     Builder.defineMacro("_CALL_LINUX", "1");
114 
115   // Subtarget options.
116   if (!getTriple().isOSAIX()){
117     Builder.defineMacro("__NATURAL_ALIGNMENT__");
118   }
119   Builder.defineMacro("__REGISTER_PREFIX__", "");
120 
121   // FIXME: Should be controlled by command line option.
122   if (LongDoubleWidth == 128) {
123     Builder.defineMacro("__LONG_DOUBLE_128__");
124     Builder.defineMacro("__LONGDOUBLE128");
125     if (Opts.PPCIEEELongDouble)
126       Builder.defineMacro("__LONG_DOUBLE_IEEE128__");
127     else
128       Builder.defineMacro("__LONG_DOUBLE_IBM128__");
129   }
130 
131   // Define this for elfv2 (64-bit only) or 64-bit darwin.
132   if (ABI == "elfv2" ||
133       (getTriple().getOS() == llvm::Triple::Darwin && PointerWidth == 64))
134     Builder.defineMacro("__STRUCT_PARM_ALIGN__", "16");
135 
136   if (ArchDefs & ArchDefineName)
137     Builder.defineMacro(Twine("_ARCH_", StringRef(CPU).upper()));
138   if (ArchDefs & ArchDefinePpcgr)
139     Builder.defineMacro("_ARCH_PPCGR");
140   if (ArchDefs & ArchDefinePpcsq)
141     Builder.defineMacro("_ARCH_PPCSQ");
142   if (ArchDefs & ArchDefine440)
143     Builder.defineMacro("_ARCH_440");
144   if (ArchDefs & ArchDefine603)
145     Builder.defineMacro("_ARCH_603");
146   if (ArchDefs & ArchDefine604)
147     Builder.defineMacro("_ARCH_604");
148   if (ArchDefs & ArchDefinePwr4)
149     Builder.defineMacro("_ARCH_PWR4");
150   if (ArchDefs & ArchDefinePwr5)
151     Builder.defineMacro("_ARCH_PWR5");
152   if (ArchDefs & ArchDefinePwr5x)
153     Builder.defineMacro("_ARCH_PWR5X");
154   if (ArchDefs & ArchDefinePwr6)
155     Builder.defineMacro("_ARCH_PWR6");
156   if (ArchDefs & ArchDefinePwr6x)
157     Builder.defineMacro("_ARCH_PWR6X");
158   if (ArchDefs & ArchDefinePwr7)
159     Builder.defineMacro("_ARCH_PWR7");
160   if (ArchDefs & ArchDefinePwr8)
161     Builder.defineMacro("_ARCH_PWR8");
162   if (ArchDefs & ArchDefinePwr9)
163     Builder.defineMacro("_ARCH_PWR9");
164   if (ArchDefs & ArchDefinePwr10)
165     Builder.defineMacro("_ARCH_PWR10");
166   if (ArchDefs & ArchDefineA2)
167     Builder.defineMacro("_ARCH_A2");
168   if (ArchDefs & ArchDefineE500)
169     Builder.defineMacro("__NO_LWSYNC__");
170   if (ArchDefs & ArchDefineFuture)
171     Builder.defineMacro("_ARCH_PWR_FUTURE");
172 
173   if (HasAltivec) {
174     Builder.defineMacro("__VEC__", "10206");
175     Builder.defineMacro("__ALTIVEC__");
176   }
177   if (HasSPE) {
178     Builder.defineMacro("__SPE__");
179     Builder.defineMacro("__NO_FPRS__");
180   }
181   if (HasVSX)
182     Builder.defineMacro("__VSX__");
183   if (HasP8Vector)
184     Builder.defineMacro("__POWER8_VECTOR__");
185   if (HasP8Crypto)
186     Builder.defineMacro("__CRYPTO__");
187   if (HasHTM)
188     Builder.defineMacro("__HTM__");
189   if (HasFloat128)
190     Builder.defineMacro("__FLOAT128__");
191   if (HasP9Vector)
192     Builder.defineMacro("__POWER9_VECTOR__");
193   if (HasMMA)
194     Builder.defineMacro("__MMA__");
195   if (HasP10Vector)
196     Builder.defineMacro("__POWER10_VECTOR__");
197 
198   Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
199   Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
200   Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
201   if (PointerWidth == 64)
202     Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
203 
204   // We have support for the bswap intrinsics so we can define this.
205   Builder.defineMacro("__HAVE_BSWAP__", "1");
206 
207   // FIXME: The following are not yet generated here by Clang, but are
208   //        generated by GCC:
209   //
210   //   _SOFT_FLOAT_
211   //   __RECIP_PRECISION__
212   //   __APPLE_ALTIVEC__
213   //   __RECIP__
214   //   __RECIPF__
215   //   __RSQRTE__
216   //   __RSQRTEF__
217   //   _SOFT_DOUBLE_
218   //   __NO_LWSYNC__
219   //   __CMODEL_MEDIUM__
220   //   __CMODEL_LARGE__
221   //   _CALL_SYSV
222   //   _CALL_DARWIN
223 }
224 
225 // Handle explicit options being passed to the compiler here: if we've
226 // explicitly turned off vsx and turned on any of:
227 // - power8-vector
228 // - direct-move
229 // - float128
230 // - power9-vector
231 // - paired-vector-memops
232 // - mma
233 // - power10-vector
234 // then go ahead and error since the customer has expressed an incompatible
235 // set of options.
236 static bool ppcUserFeaturesCheck(DiagnosticsEngine &Diags,
237                                  const std::vector<std::string> &FeaturesVec) {
238 
239   // vsx was not explicitly turned off.
240   if (llvm::find(FeaturesVec, "-vsx") == FeaturesVec.end())
241     return true;
242 
243   auto FindVSXSubfeature = [&](StringRef Feature, StringRef Option) {
244     if (llvm::find(FeaturesVec, Feature) != FeaturesVec.end()) {
245       Diags.Report(diag::err_opt_not_valid_with_opt) << Option << "-mno-vsx";
246       return true;
247     }
248     return false;
249   };
250 
251   bool Found = FindVSXSubfeature("+power8-vector", "-mpower8-vector");
252   Found |= FindVSXSubfeature("+direct-move", "-mdirect-move");
253   Found |= FindVSXSubfeature("+float128", "-mfloat128");
254   Found |= FindVSXSubfeature("+power9-vector", "-mpower9-vector");
255   Found |= FindVSXSubfeature("+paired-vector-memops", "-mpaired-vector-memops");
256   Found |= FindVSXSubfeature("+mma", "-mmma");
257   Found |= FindVSXSubfeature("+power10-vector", "-mpower10-vector");
258 
259   // Return false if any vsx subfeatures was found.
260   return !Found;
261 }
262 
263 bool PPCTargetInfo::initFeatureMap(
264     llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
265     const std::vector<std::string> &FeaturesVec) const {
266   Features["altivec"] = llvm::StringSwitch<bool>(CPU)
267                             .Case("7400", true)
268                             .Case("g4", true)
269                             .Case("7450", true)
270                             .Case("g4+", true)
271                             .Case("970", true)
272                             .Case("g5", true)
273                             .Case("pwr6", true)
274                             .Case("pwr7", true)
275                             .Case("pwr8", true)
276                             .Case("pwr9", true)
277                             .Case("ppc64", true)
278                             .Case("ppc64le", true)
279                             .Default(false);
280 
281   Features["power9-vector"] = (CPU == "pwr9");
282   Features["crypto"] = llvm::StringSwitch<bool>(CPU)
283                            .Case("ppc64le", true)
284                            .Case("pwr9", true)
285                            .Case("pwr8", true)
286                            .Default(false);
287   Features["power8-vector"] = llvm::StringSwitch<bool>(CPU)
288                                   .Case("ppc64le", true)
289                                   .Case("pwr9", true)
290                                   .Case("pwr8", true)
291                                   .Default(false);
292   Features["bpermd"] = llvm::StringSwitch<bool>(CPU)
293                            .Case("ppc64le", true)
294                            .Case("pwr9", true)
295                            .Case("pwr8", true)
296                            .Case("pwr7", true)
297                            .Default(false);
298   Features["extdiv"] = llvm::StringSwitch<bool>(CPU)
299                            .Case("ppc64le", true)
300                            .Case("pwr9", true)
301                            .Case("pwr8", true)
302                            .Case("pwr7", true)
303                            .Default(false);
304   Features["direct-move"] = llvm::StringSwitch<bool>(CPU)
305                                 .Case("ppc64le", true)
306                                 .Case("pwr9", true)
307                                 .Case("pwr8", true)
308                                 .Default(false);
309   Features["vsx"] = llvm::StringSwitch<bool>(CPU)
310                         .Case("ppc64le", true)
311                         .Case("pwr9", true)
312                         .Case("pwr8", true)
313                         .Case("pwr7", true)
314                         .Default(false);
315   Features["htm"] = llvm::StringSwitch<bool>(CPU)
316                         .Case("ppc64le", true)
317                         .Case("pwr9", true)
318                         .Case("pwr8", true)
319                         .Default(false);
320 
321   Features["spe"] = llvm::StringSwitch<bool>(CPU)
322                         .Case("8548", true)
323                         .Case("e500", true)
324                         .Default(false);
325 
326   // Power10 includes all the same features as Power9 plus any features specific
327   // to the Power10 core.
328   if (CPU == "pwr10" || CPU == "power10") {
329     initFeatureMap(Features, Diags, "pwr9", FeaturesVec);
330     addP10SpecificFeatures(Features);
331   }
332 
333   // Future CPU should include all of the features of Power 10 as well as any
334   // additional features (yet to be determined) specific to it.
335   if (CPU == "future") {
336     initFeatureMap(Features, Diags, "pwr10", FeaturesVec);
337     addFutureSpecificFeatures(Features);
338   }
339 
340   if (!ppcUserFeaturesCheck(Diags, FeaturesVec))
341     return false;
342 
343   if (!(ArchDefs & ArchDefinePwr9) && (ArchDefs & ArchDefinePpcgr) &&
344       llvm::find(FeaturesVec, "+float128") != FeaturesVec.end()) {
345     // We have __float128 on PPC but not power 9 and above.
346     Diags.Report(diag::err_opt_not_valid_with_opt) << "-mfloat128" << CPU;
347     return false;
348   }
349 
350   if (!(ArchDefs & ArchDefinePwr10) &&
351       llvm::find(FeaturesVec, "+mma") != FeaturesVec.end()) {
352     // We have MMA on PPC but not power 10 and above.
353     Diags.Report(diag::err_opt_not_valid_with_opt) << "-mmma" << CPU;
354     return false;
355   }
356 
357   return TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec);
358 }
359 
360 // Add any Power10 specific features.
361 void PPCTargetInfo::addP10SpecificFeatures(
362     llvm::StringMap<bool> &Features) const {
363   Features["htm"] = false; // HTM was removed for P10.
364   Features["paired-vector-memops"] = true;
365   Features["mma"] = true;
366   Features["power10-vector"] = true;
367   Features["pcrelative-memops"] = true;
368   return;
369 }
370 
371 // Add features specific to the "Future" CPU.
372 void PPCTargetInfo::addFutureSpecificFeatures(
373     llvm::StringMap<bool> &Features) const {
374   return;
375 }
376 
377 bool PPCTargetInfo::hasFeature(StringRef Feature) const {
378   return llvm::StringSwitch<bool>(Feature)
379       .Case("powerpc", true)
380       .Case("altivec", HasAltivec)
381       .Case("vsx", HasVSX)
382       .Case("power8-vector", HasP8Vector)
383       .Case("crypto", HasP8Crypto)
384       .Case("direct-move", HasDirectMove)
385       .Case("htm", HasHTM)
386       .Case("bpermd", HasBPERMD)
387       .Case("extdiv", HasExtDiv)
388       .Case("float128", HasFloat128)
389       .Case("power9-vector", HasP9Vector)
390       .Case("paired-vector-memops", PairedVectorMemops)
391       .Case("power10-vector", HasP10Vector)
392       .Case("pcrelative-memops", HasPCRelativeMemops)
393       .Case("spe", HasSPE)
394       .Case("mma", HasMMA)
395       .Default(false);
396 }
397 
398 void PPCTargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
399                                       StringRef Name, bool Enabled) const {
400   if (Enabled) {
401     // If we're enabling any of the vsx based features then enable vsx and
402     // altivec. We'll diagnose any problems later.
403     bool FeatureHasVSX = llvm::StringSwitch<bool>(Name)
404                              .Case("vsx", true)
405                              .Case("direct-move", true)
406                              .Case("power8-vector", true)
407                              .Case("power9-vector", true)
408                              .Case("paired-vector-memops", true)
409                              .Case("power10-vector", true)
410                              .Case("float128", true)
411                              .Case("mma", true)
412                              .Default(false);
413     if (FeatureHasVSX)
414       Features["vsx"] = Features["altivec"] = true;
415     if (Name == "power9-vector")
416       Features["power8-vector"] = true;
417     else if (Name == "power10-vector")
418       Features["power8-vector"] = Features["power9-vector"] = true;
419     if (Name == "pcrel")
420       Features["pcrelative-memops"] = true;
421     else
422       Features[Name] = true;
423   } else {
424     // If we're disabling altivec or vsx go ahead and disable all of the vsx
425     // features.
426     if ((Name == "altivec") || (Name == "vsx"))
427       Features["vsx"] = Features["direct-move"] = Features["power8-vector"] =
428           Features["float128"] = Features["power9-vector"] =
429               Features["paired-vector-memops"] = Features["mma"] =
430                   Features["power10-vector"] = false;
431     if (Name == "power8-vector")
432       Features["power9-vector"] = Features["paired-vector-memops"] =
433           Features["mma"] = Features["power10-vector"] = false;
434     else if (Name == "power9-vector")
435       Features["paired-vector-memops"] = Features["mma"] =
436           Features["power10-vector"] = false;
437     if (Name == "pcrel")
438       Features["pcrelative-memops"] = false;
439     else
440       Features[Name] = false;
441   }
442 }
443 
444 const char *const PPCTargetInfo::GCCRegNames[] = {
445     "r0",  "r1",     "r2",   "r3",      "r4",      "r5",  "r6",  "r7",  "r8",
446     "r9",  "r10",    "r11",  "r12",     "r13",     "r14", "r15", "r16", "r17",
447     "r18", "r19",    "r20",  "r21",     "r22",     "r23", "r24", "r25", "r26",
448     "r27", "r28",    "r29",  "r30",     "r31",     "f0",  "f1",  "f2",  "f3",
449     "f4",  "f5",     "f6",   "f7",      "f8",      "f9",  "f10", "f11", "f12",
450     "f13", "f14",    "f15",  "f16",     "f17",     "f18", "f19", "f20", "f21",
451     "f22", "f23",    "f24",  "f25",     "f26",     "f27", "f28", "f29", "f30",
452     "f31", "mq",     "lr",   "ctr",     "ap",      "cr0", "cr1", "cr2", "cr3",
453     "cr4", "cr5",    "cr6",  "cr7",     "xer",     "v0",  "v1",  "v2",  "v3",
454     "v4",  "v5",     "v6",   "v7",      "v8",      "v9",  "v10", "v11", "v12",
455     "v13", "v14",    "v15",  "v16",     "v17",     "v18", "v19", "v20", "v21",
456     "v22", "v23",    "v24",  "v25",     "v26",     "v27", "v28", "v29", "v30",
457     "v31", "vrsave", "vscr", "spe_acc", "spefscr", "sfp"
458 };
459 
460 ArrayRef<const char *> PPCTargetInfo::getGCCRegNames() const {
461   return llvm::makeArrayRef(GCCRegNames);
462 }
463 
464 const TargetInfo::GCCRegAlias PPCTargetInfo::GCCRegAliases[] = {
465     // While some of these aliases do map to different registers
466     // they still share the same register name.
467     {{"0"}, "r0"},     {{"1"}, "r1"},     {{"2"}, "r2"},     {{"3"}, "r3"},
468     {{"4"}, "r4"},     {{"5"}, "r5"},     {{"6"}, "r6"},     {{"7"}, "r7"},
469     {{"8"}, "r8"},     {{"9"}, "r9"},     {{"10"}, "r10"},   {{"11"}, "r11"},
470     {{"12"}, "r12"},   {{"13"}, "r13"},   {{"14"}, "r14"},   {{"15"}, "r15"},
471     {{"16"}, "r16"},   {{"17"}, "r17"},   {{"18"}, "r18"},   {{"19"}, "r19"},
472     {{"20"}, "r20"},   {{"21"}, "r21"},   {{"22"}, "r22"},   {{"23"}, "r23"},
473     {{"24"}, "r24"},   {{"25"}, "r25"},   {{"26"}, "r26"},   {{"27"}, "r27"},
474     {{"28"}, "r28"},   {{"29"}, "r29"},   {{"30"}, "r30"},   {{"31"}, "r31"},
475     {{"fr0"}, "f0"},   {{"fr1"}, "f1"},   {{"fr2"}, "f2"},   {{"fr3"}, "f3"},
476     {{"fr4"}, "f4"},   {{"fr5"}, "f5"},   {{"fr6"}, "f6"},   {{"fr7"}, "f7"},
477     {{"fr8"}, "f8"},   {{"fr9"}, "f9"},   {{"fr10"}, "f10"}, {{"fr11"}, "f11"},
478     {{"fr12"}, "f12"}, {{"fr13"}, "f13"}, {{"fr14"}, "f14"}, {{"fr15"}, "f15"},
479     {{"fr16"}, "f16"}, {{"fr17"}, "f17"}, {{"fr18"}, "f18"}, {{"fr19"}, "f19"},
480     {{"fr20"}, "f20"}, {{"fr21"}, "f21"}, {{"fr22"}, "f22"}, {{"fr23"}, "f23"},
481     {{"fr24"}, "f24"}, {{"fr25"}, "f25"}, {{"fr26"}, "f26"}, {{"fr27"}, "f27"},
482     {{"fr28"}, "f28"}, {{"fr29"}, "f29"}, {{"fr30"}, "f30"}, {{"fr31"}, "f31"},
483     {{"cc"}, "cr0"},
484 };
485 
486 ArrayRef<TargetInfo::GCCRegAlias> PPCTargetInfo::getGCCRegAliases() const {
487   return llvm::makeArrayRef(GCCRegAliases);
488 }
489 
490 // PPC ELFABIv2 DWARF Definitoin "Table 2.26. Mappings of Common Registers".
491 // vs0 ~ vs31 is mapping to 32 - 63,
492 // vs32 ~ vs63 is mapping to 77 - 108.
493 const TargetInfo::AddlRegName GCCAddlRegNames[] = {
494     // Table of additional register names to use in user input.
495     {{"vs0"}, 32},   {{"vs1"}, 33},   {{"vs2"}, 34},   {{"vs3"}, 35},
496     {{"vs4"}, 36},   {{"vs5"}, 37},   {{"vs6"}, 38},   {{"vs7"}, 39},
497     {{"vs8"}, 40},   {{"vs9"}, 41},   {{"vs10"}, 42},  {{"vs11"}, 43},
498     {{"vs12"}, 44},  {{"vs13"}, 45},  {{"vs14"}, 46},  {{"vs15"}, 47},
499     {{"vs16"}, 48},  {{"vs17"}, 49},  {{"vs18"}, 50},  {{"vs19"}, 51},
500     {{"vs20"}, 52},  {{"vs21"}, 53},  {{"vs22"}, 54},  {{"vs23"}, 55},
501     {{"vs24"}, 56},  {{"vs25"}, 57},  {{"vs26"}, 58},  {{"vs27"}, 59},
502     {{"vs28"}, 60},  {{"vs29"}, 61},  {{"vs30"}, 62},  {{"vs31"}, 63},
503     {{"vs32"}, 77},  {{"vs33"}, 78},  {{"vs34"}, 79},  {{"vs35"}, 80},
504     {{"vs36"}, 81},  {{"vs37"}, 82},  {{"vs38"}, 83},  {{"vs39"}, 84},
505     {{"vs40"}, 85},  {{"vs41"}, 86},  {{"vs42"}, 87},  {{"vs43"}, 88},
506     {{"vs44"}, 89},  {{"vs45"}, 90},  {{"vs46"}, 91},  {{"vs47"}, 92},
507     {{"vs48"}, 93},  {{"vs49"}, 94},  {{"vs50"}, 95},  {{"vs51"}, 96},
508     {{"vs52"}, 97},  {{"vs53"}, 98},  {{"vs54"}, 99},  {{"vs55"}, 100},
509     {{"vs56"}, 101}, {{"vs57"}, 102}, {{"vs58"}, 103}, {{"vs59"}, 104},
510     {{"vs60"}, 105}, {{"vs61"}, 106}, {{"vs62"}, 107}, {{"vs63"}, 108},
511 };
512 
513 ArrayRef<TargetInfo::AddlRegName> PPCTargetInfo::getGCCAddlRegNames() const {
514   if (ABI == "elfv2")
515     return llvm::makeArrayRef(GCCAddlRegNames);
516   else
517     return TargetInfo::getGCCAddlRegNames();
518 }
519 
520 static constexpr llvm::StringLiteral ValidCPUNames[] = {
521     {"generic"}, {"440"},     {"450"},       {"601"},     {"602"},
522     {"603"},     {"603e"},    {"603ev"},     {"604"},     {"604e"},
523     {"620"},     {"630"},     {"g3"},        {"7400"},    {"g4"},
524     {"7450"},    {"g4+"},     {"750"},       {"8548"},    {"970"},
525     {"g5"},      {"a2"},      {"e500"},      {"e500mc"},  {"e5500"},
526     {"power3"},  {"pwr3"},    {"power4"},    {"pwr4"},    {"power5"},
527     {"pwr5"},    {"power5x"}, {"pwr5x"},     {"power6"},  {"pwr6"},
528     {"power6x"}, {"pwr6x"},   {"power7"},    {"pwr7"},    {"power8"},
529     {"pwr8"},    {"power9"},  {"pwr9"},      {"power10"}, {"pwr10"},
530     {"powerpc"}, {"ppc"},     {"powerpc64"}, {"ppc64"},   {"powerpc64le"},
531     {"ppc64le"}, {"future"}};
532 
533 bool PPCTargetInfo::isValidCPUName(StringRef Name) const {
534   return llvm::find(ValidCPUNames, Name) != std::end(ValidCPUNames);
535 }
536 
537 void PPCTargetInfo::fillValidCPUList(SmallVectorImpl<StringRef> &Values) const {
538   Values.append(std::begin(ValidCPUNames), std::end(ValidCPUNames));
539 }
540 
541 void PPCTargetInfo::adjust(LangOptions &Opts) {
542   if (HasAltivec)
543     Opts.AltiVec = 1;
544   TargetInfo::adjust(Opts);
545   if (LongDoubleFormat != &llvm::APFloat::IEEEdouble())
546     LongDoubleFormat = Opts.PPCIEEELongDouble
547                            ? &llvm::APFloat::IEEEquad()
548                            : &llvm::APFloat::PPCDoubleDouble();
549 }
550 
551 ArrayRef<Builtin::Info> PPCTargetInfo::getTargetBuiltins() const {
552   return llvm::makeArrayRef(BuiltinInfo, clang::PPC::LastTSBuiltin -
553                                              Builtin::FirstTSBuiltin);
554 }
555