1 //===- IntrinsicEmitter.cpp - Generate intrinsic information --------------===//
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 // This tablegen backend emits information about intrinsic functions.
12 //===----------------------------------------------------------------------===//
14 #include "CodeGenTarget.h"
15 #include "IntrinsicEmitter.h"
16 #include "StringMatcher.h"
17 #include "llvm/TableGen/Record.h"
18 #include "llvm/ADT/StringExtras.h"
22 //===----------------------------------------------------------------------===//
23 // IntrinsicEmitter Implementation
24 //===----------------------------------------------------------------------===//
26 void IntrinsicEmitter::run(raw_ostream &OS) {
27 EmitSourceFileHeader("Intrinsic Function Source Fragment", OS);
29 std::vector<CodeGenIntrinsic> Ints = LoadIntrinsics(Records, TargetOnly);
31 if (TargetOnly && !Ints.empty())
32 TargetPrefix = Ints[0].TargetPrefix;
36 // Emit the enum information.
37 EmitEnumInfo(Ints, OS);
39 // Emit the intrinsic ID -> name table.
40 EmitIntrinsicToNameTable(Ints, OS);
42 // Emit the intrinsic ID -> overload table.
43 EmitIntrinsicToOverloadTable(Ints, OS);
45 // Emit the function name recognizer.
46 EmitFnNameRecognizer(Ints, OS);
48 // Emit the intrinsic verifier.
49 EmitVerifier(Ints, OS);
51 // Emit the intrinsic declaration generator.
52 EmitGenerator(Ints, OS);
54 // Emit the intrinsic parameter attributes.
55 EmitAttributes(Ints, OS);
57 // Emit intrinsic alias analysis mod/ref behavior.
58 EmitModRefBehavior(Ints, OS);
60 // Emit a list of intrinsics with corresponding GCC builtins.
61 EmitGCCBuiltinList(Ints, OS);
63 // Emit code to translate GCC builtins into LLVM intrinsics.
64 EmitIntrinsicToGCCBuiltinMap(Ints, OS);
69 void IntrinsicEmitter::EmitPrefix(raw_ostream &OS) {
70 OS << "// VisualStudio defines setjmp as _setjmp\n"
71 "#if defined(_MSC_VER) && defined(setjmp) && \\\n"
72 " !defined(setjmp_undefined_for_msvc)\n"
73 "# pragma push_macro(\"setjmp\")\n"
75 "# define setjmp_undefined_for_msvc\n"
79 void IntrinsicEmitter::EmitSuffix(raw_ostream &OS) {
80 OS << "#if defined(_MSC_VER) && defined(setjmp_undefined_for_msvc)\n"
81 "// let's return it to _setjmp state\n"
82 "# pragma pop_macro(\"setjmp\")\n"
83 "# undef setjmp_undefined_for_msvc\n"
87 void IntrinsicEmitter::EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints,
89 OS << "// Enum values for Intrinsics.h\n";
90 OS << "#ifdef GET_INTRINSIC_ENUM_VALUES\n";
91 for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
92 OS << " " << Ints[i].EnumName;
93 OS << ((i != e-1) ? ", " : " ");
94 OS << std::string(40-Ints[i].EnumName.size(), ' ')
95 << "// " << Ints[i].Name << "\n";
100 void IntrinsicEmitter::
101 EmitFnNameRecognizer(const std::vector<CodeGenIntrinsic> &Ints,
103 // Build a 'first character of function name' -> intrinsic # mapping.
104 std::map<char, std::vector<unsigned> > IntMapping;
105 for (unsigned i = 0, e = Ints.size(); i != e; ++i)
106 IntMapping[Ints[i].Name[5]].push_back(i);
108 OS << "// Function name -> enum value recognizer code.\n";
109 OS << "#ifdef GET_FUNCTION_RECOGNIZER\n";
110 OS << " StringRef NameR(Name+6, Len-6); // Skip over 'llvm.'\n";
111 OS << " switch (Name[5]) { // Dispatch on first letter.\n";
112 OS << " default: break;\n";
113 // Emit the intrinsic matching stuff by first letter.
114 for (std::map<char, std::vector<unsigned> >::iterator I = IntMapping.begin(),
115 E = IntMapping.end(); I != E; ++I) {
116 OS << " case '" << I->first << "':\n";
117 std::vector<unsigned> &IntList = I->second;
119 // Emit all the overloaded intrinsics first, build a table of the
120 // non-overloaded ones.
121 std::vector<StringMatcher::StringPair> MatchTable;
123 for (unsigned i = 0, e = IntList.size(); i != e; ++i) {
124 unsigned IntNo = IntList[i];
125 std::string Result = "return " + TargetPrefix + "Intrinsic::" +
126 Ints[IntNo].EnumName + ";";
128 if (!Ints[IntNo].isOverloaded) {
129 MatchTable.push_back(std::make_pair(Ints[IntNo].Name.substr(6),Result));
133 // For overloaded intrinsics, only the prefix needs to match
134 std::string TheStr = Ints[IntNo].Name.substr(6);
135 TheStr += '.'; // Require "bswap." instead of bswap.
136 OS << " if (NameR.startswith(\"" << TheStr << "\")) "
140 // Emit the matcher logic for the fixed length strings.
141 StringMatcher("NameR", MatchTable, OS).Emit(1);
142 OS << " break; // end of '" << I->first << "' case.\n";
149 void IntrinsicEmitter::
150 EmitIntrinsicToNameTable(const std::vector<CodeGenIntrinsic> &Ints,
152 OS << "// Intrinsic ID to name table\n";
153 OS << "#ifdef GET_INTRINSIC_NAME_TABLE\n";
154 OS << " // Note that entry #0 is the invalid intrinsic!\n";
155 for (unsigned i = 0, e = Ints.size(); i != e; ++i)
156 OS << " \"" << Ints[i].Name << "\",\n";
160 void IntrinsicEmitter::
161 EmitIntrinsicToOverloadTable(const std::vector<CodeGenIntrinsic> &Ints,
163 OS << "// Intrinsic ID to overload table\n";
164 OS << "#ifdef GET_INTRINSIC_OVERLOAD_TABLE\n";
165 OS << " // Note that entry #0 is the invalid intrinsic!\n";
166 for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
168 if (Ints[i].isOverloaded)
177 static void EmitTypeForValueType(raw_ostream &OS, MVT::SimpleValueType VT) {
178 if (EVT(VT).isInteger()) {
179 unsigned BitWidth = EVT(VT).getSizeInBits();
180 OS << "IntegerType::get(Context, " << BitWidth << ")";
181 } else if (VT == MVT::Other) {
182 // MVT::OtherVT is used to mean the empty struct type here.
183 OS << "StructType::get(Context)";
184 } else if (VT == MVT::f16) {
185 OS << "Type::getHalfTy(Context)";
186 } else if (VT == MVT::f32) {
187 OS << "Type::getFloatTy(Context)";
188 } else if (VT == MVT::f64) {
189 OS << "Type::getDoubleTy(Context)";
190 } else if (VT == MVT::f80) {
191 OS << "Type::getX86_FP80Ty(Context)";
192 } else if (VT == MVT::f128) {
193 OS << "Type::getFP128Ty(Context)";
194 } else if (VT == MVT::ppcf128) {
195 OS << "Type::getPPC_FP128Ty(Context)";
196 } else if (VT == MVT::isVoid) {
197 OS << "Type::getVoidTy(Context)";
198 } else if (VT == MVT::Metadata) {
199 OS << "Type::getMetadataTy(Context)";
200 } else if (VT == MVT::x86mmx) {
201 OS << "Type::getX86_MMXTy(Context)";
203 assert(false && "Unsupported ValueType!");
207 static void EmitTypeGenerate(raw_ostream &OS, const Record *ArgType,
210 static void EmitTypeGenerate(raw_ostream &OS,
211 const std::vector<Record*> &ArgTypes,
213 if (ArgTypes.empty())
214 return EmitTypeForValueType(OS, MVT::isVoid);
216 if (ArgTypes.size() == 1)
217 return EmitTypeGenerate(OS, ArgTypes.front(), ArgNo);
219 OS << "StructType::get(";
221 for (std::vector<Record*>::const_iterator
222 I = ArgTypes.begin(), E = ArgTypes.end(); I != E; ++I) {
223 EmitTypeGenerate(OS, *I, ArgNo);
230 static void EmitTypeGenerate(raw_ostream &OS, const Record *ArgType,
232 MVT::SimpleValueType VT = getValueType(ArgType->getValueAsDef("VT"));
234 if (ArgType->isSubClassOf("LLVMMatchType")) {
235 unsigned Number = ArgType->getValueAsInt("Number");
236 assert(Number < ArgNo && "Invalid matching number!");
237 if (ArgType->isSubClassOf("LLVMExtendedElementVectorType"))
238 OS << "VectorType::getExtendedElementVectorType"
239 << "(dyn_cast<VectorType>(Tys[" << Number << "]))";
240 else if (ArgType->isSubClassOf("LLVMTruncatedElementVectorType"))
241 OS << "VectorType::getTruncatedElementVectorType"
242 << "(dyn_cast<VectorType>(Tys[" << Number << "]))";
244 OS << "Tys[" << Number << "]";
245 } else if (VT == MVT::iAny || VT == MVT::fAny || VT == MVT::vAny) {
246 // NOTE: The ArgNo variable here is not the absolute argument number, it is
247 // the index of the "arbitrary" type in the Tys array passed to the
248 // Intrinsic::getDeclaration function. Consequently, we only want to
249 // increment it when we actually hit an overloaded type. Getting this wrong
250 // leads to very subtle bugs!
251 OS << "Tys[" << ArgNo++ << "]";
252 } else if (EVT(VT).isVector()) {
254 OS << "VectorType::get(";
255 EmitTypeForValueType(OS, VVT.getVectorElementType().getSimpleVT().SimpleTy);
256 OS << ", " << VVT.getVectorNumElements() << ")";
257 } else if (VT == MVT::iPTR) {
258 OS << "PointerType::getUnqual(";
259 EmitTypeGenerate(OS, ArgType->getValueAsDef("ElTy"), ArgNo);
261 } else if (VT == MVT::iPTRAny) {
262 // Make sure the user has passed us an argument type to overload. If not,
263 // treat it as an ordinary (not overloaded) intrinsic.
264 OS << "(" << ArgNo << " < Tys.size()) ? Tys[" << ArgNo
265 << "] : PointerType::getUnqual(";
266 EmitTypeGenerate(OS, ArgType->getValueAsDef("ElTy"), ArgNo);
269 } else if (VT == MVT::isVoid) {
271 OS << "Type::getVoidTy(Context)";
273 // MVT::isVoid is used to mean varargs here.
276 EmitTypeForValueType(OS, VT);
280 /// RecordListComparator - Provide a deterministic comparator for lists of
283 typedef std::pair<std::vector<Record*>, std::vector<Record*> > RecPair;
284 struct RecordListComparator {
285 bool operator()(const RecPair &LHS,
286 const RecPair &RHS) const {
288 const std::vector<Record*> *LHSVec = &LHS.first;
289 const std::vector<Record*> *RHSVec = &RHS.first;
290 unsigned RHSSize = RHSVec->size();
291 unsigned LHSSize = LHSVec->size();
293 for (; i != LHSSize; ++i) {
294 if (i == RHSSize) return false; // RHS is shorter than LHS.
295 if ((*LHSVec)[i] != (*RHSVec)[i])
296 return (*LHSVec)[i]->getName() < (*RHSVec)[i]->getName();
299 if (i != RHSSize) return true;
302 LHSVec = &LHS.second;
303 RHSVec = &RHS.second;
304 RHSSize = RHSVec->size();
305 LHSSize = LHSVec->size();
307 for (i = 0; i != LHSSize; ++i) {
308 if (i == RHSSize) return false; // RHS is shorter than LHS.
309 if ((*LHSVec)[i] != (*RHSVec)[i])
310 return (*LHSVec)[i]->getName() < (*RHSVec)[i]->getName();
318 void IntrinsicEmitter::EmitVerifier(const std::vector<CodeGenIntrinsic> &Ints,
320 OS << "// Verifier::visitIntrinsicFunctionCall code.\n";
321 OS << "#ifdef GET_INTRINSIC_VERIFIER\n";
322 OS << " switch (ID) {\n";
323 OS << " default: assert(0 && \"Invalid intrinsic!\");\n";
325 // This checking can emit a lot of very common code. To reduce the amount of
326 // code that we emit, batch up cases that have identical types. This avoids
327 // problems where GCC can run out of memory compiling Verifier.cpp.
328 typedef std::map<RecPair, std::vector<unsigned>, RecordListComparator> MapTy;
329 MapTy UniqueArgInfos;
331 // Compute the unique argument type info.
332 for (unsigned i = 0, e = Ints.size(); i != e; ++i)
333 UniqueArgInfos[make_pair(Ints[i].IS.RetTypeDefs,
334 Ints[i].IS.ParamTypeDefs)].push_back(i);
336 // Loop through the array, emitting one comparison for each batch.
337 for (MapTy::iterator I = UniqueArgInfos.begin(),
338 E = UniqueArgInfos.end(); I != E; ++I) {
339 for (unsigned i = 0, e = I->second.size(); i != e; ++i)
340 OS << " case Intrinsic::" << Ints[I->second[i]].EnumName << ":\t\t// "
341 << Ints[I->second[i]].Name << "\n";
343 const RecPair &ArgTypes = I->first;
344 const std::vector<Record*> &RetTys = ArgTypes.first;
345 const std::vector<Record*> &ParamTys = ArgTypes.second;
346 std::vector<unsigned> OverloadedTypeIndices;
348 OS << " VerifyIntrinsicPrototype(ID, IF, " << RetTys.size() << ", "
351 // Emit return types.
352 for (unsigned j = 0, je = RetTys.size(); j != je; ++j) {
353 Record *ArgType = RetTys[j];
356 if (ArgType->isSubClassOf("LLVMMatchType")) {
357 unsigned Number = ArgType->getValueAsInt("Number");
358 assert(Number < OverloadedTypeIndices.size() &&
359 "Invalid matching number!");
360 Number = OverloadedTypeIndices[Number];
361 if (ArgType->isSubClassOf("LLVMExtendedElementVectorType"))
362 OS << "~(ExtendedElementVectorType | " << Number << ")";
363 else if (ArgType->isSubClassOf("LLVMTruncatedElementVectorType"))
364 OS << "~(TruncatedElementVectorType | " << Number << ")";
368 MVT::SimpleValueType VT = getValueType(ArgType->getValueAsDef("VT"));
369 OS << getEnumName(VT);
371 if (EVT(VT).isOverloaded())
372 OverloadedTypeIndices.push_back(j);
374 if (VT == MVT::isVoid && j != 0 && j != je - 1)
375 throw "Var arg type not last argument";
379 // Emit the parameter types.
380 for (unsigned j = 0, je = ParamTys.size(); j != je; ++j) {
381 Record *ArgType = ParamTys[j];
384 if (ArgType->isSubClassOf("LLVMMatchType")) {
385 unsigned Number = ArgType->getValueAsInt("Number");
386 assert(Number < OverloadedTypeIndices.size() &&
387 "Invalid matching number!");
388 Number = OverloadedTypeIndices[Number];
389 if (ArgType->isSubClassOf("LLVMExtendedElementVectorType"))
390 OS << "~(ExtendedElementVectorType | " << Number << ")";
391 else if (ArgType->isSubClassOf("LLVMTruncatedElementVectorType"))
392 OS << "~(TruncatedElementVectorType | " << Number << ")";
396 MVT::SimpleValueType VT = getValueType(ArgType->getValueAsDef("VT"));
397 OS << getEnumName(VT);
399 if (EVT(VT).isOverloaded())
400 OverloadedTypeIndices.push_back(j + RetTys.size());
402 if (VT == MVT::isVoid && j != 0 && j != je - 1)
403 throw "Var arg type not last argument";
414 void IntrinsicEmitter::EmitGenerator(const std::vector<CodeGenIntrinsic> &Ints,
416 OS << "// Code for generating Intrinsic function declarations.\n";
417 OS << "#ifdef GET_INTRINSIC_GENERATOR\n";
418 OS << " switch (id) {\n";
419 OS << " default: assert(0 && \"Invalid intrinsic!\");\n";
421 // Similar to GET_INTRINSIC_VERIFIER, batch up cases that have identical
423 typedef std::map<RecPair, std::vector<unsigned>, RecordListComparator> MapTy;
424 MapTy UniqueArgInfos;
426 // Compute the unique argument type info.
427 for (unsigned i = 0, e = Ints.size(); i != e; ++i)
428 UniqueArgInfos[make_pair(Ints[i].IS.RetTypeDefs,
429 Ints[i].IS.ParamTypeDefs)].push_back(i);
431 // Loop through the array, emitting one generator for each batch.
432 std::string IntrinsicStr = TargetPrefix + "Intrinsic::";
434 for (MapTy::iterator I = UniqueArgInfos.begin(),
435 E = UniqueArgInfos.end(); I != E; ++I) {
436 for (unsigned i = 0, e = I->second.size(); i != e; ++i)
437 OS << " case " << IntrinsicStr << Ints[I->second[i]].EnumName
438 << ":\t\t// " << Ints[I->second[i]].Name << "\n";
440 const RecPair &ArgTypes = I->first;
441 const std::vector<Record*> &RetTys = ArgTypes.first;
442 const std::vector<Record*> &ParamTys = ArgTypes.second;
444 unsigned N = ParamTys.size();
447 getValueType(ParamTys[N - 1]->getValueAsDef("VT")) == MVT::isVoid) {
448 OS << " IsVarArg = true;\n";
453 OS << " ResultTy = ";
454 EmitTypeGenerate(OS, RetTys, ArgNo);
457 for (unsigned j = 0; j != N; ++j) {
458 OS << " ArgTys.push_back(";
459 EmitTypeGenerate(OS, ParamTys[j], ArgNo);
477 ModRefKind getModRefKind(const CodeGenIntrinsic &intrinsic) {
478 switch (intrinsic.ModRef) {
479 case CodeGenIntrinsic::NoMem:
481 case CodeGenIntrinsic::ReadArgMem:
482 case CodeGenIntrinsic::ReadMem:
484 case CodeGenIntrinsic::ReadWriteArgMem:
485 case CodeGenIntrinsic::ReadWriteMem:
488 assert(0 && "bad mod-ref kind");
492 struct AttributeComparator {
493 bool operator()(const CodeGenIntrinsic *L, const CodeGenIntrinsic *R) const {
494 // Sort throwing intrinsics after non-throwing intrinsics.
495 if (L->canThrow != R->canThrow)
498 // Try to order by readonly/readnone attribute.
499 ModRefKind LK = getModRefKind(*L);
500 ModRefKind RK = getModRefKind(*R);
501 if (LK != RK) return (LK > RK);
503 // Order by argument attributes.
504 // This is reliable because each side is already sorted internally.
505 return (L->ArgumentAttributes < R->ArgumentAttributes);
510 /// EmitAttributes - This emits the Intrinsic::getAttributes method.
511 void IntrinsicEmitter::
512 EmitAttributes(const std::vector<CodeGenIntrinsic> &Ints, raw_ostream &OS) {
513 OS << "// Add parameter attributes that are not common to all intrinsics.\n";
514 OS << "#ifdef GET_INTRINSIC_ATTRIBUTES\n";
516 OS << "static AttrListPtr getAttributes(" << TargetPrefix
517 << "Intrinsic::ID id) {\n";
519 OS << "AttrListPtr Intrinsic::getAttributes(ID id) {\n";
521 // Compute the maximum number of attribute arguments.
522 std::vector<const CodeGenIntrinsic*> sortedIntrinsics(Ints.size());
523 unsigned maxArgAttrs = 0;
524 for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
525 const CodeGenIntrinsic &intrinsic = Ints[i];
526 sortedIntrinsics[i] = &intrinsic;
528 std::max(maxArgAttrs, unsigned(intrinsic.ArgumentAttributes.size()));
531 // Emit an array of AttributeWithIndex. Most intrinsics will have
532 // at least one entry, for the function itself (index ~1), which is
534 OS << " AttributeWithIndex AWI[" << maxArgAttrs+1 << "];\n";
535 OS << " unsigned NumAttrs = 0;\n";
536 OS << " switch (id) {\n";
537 OS << " default: break;\n";
539 AttributeComparator precedes;
541 std::stable_sort(sortedIntrinsics.begin(), sortedIntrinsics.end(), precedes);
543 for (unsigned i = 0, e = sortedIntrinsics.size(); i != e; ++i) {
544 const CodeGenIntrinsic &intrinsic = *sortedIntrinsics[i];
545 OS << " case " << TargetPrefix << "Intrinsic::"
546 << intrinsic.EnumName << ":\n";
548 // Fill out the case if this is the last case for this range of
550 if (i + 1 != e && !precedes(&intrinsic, sortedIntrinsics[i + 1]))
553 // Keep track of the number of attributes we're writing out.
554 unsigned numAttrs = 0;
556 // The argument attributes are alreadys sorted by argument index.
557 for (unsigned ai = 0, ae = intrinsic.ArgumentAttributes.size(); ai != ae;) {
558 unsigned argNo = intrinsic.ArgumentAttributes[ai].first;
560 OS << " AWI[" << numAttrs++ << "] = AttributeWithIndex::get("
563 bool moreThanOne = false;
566 if (moreThanOne) OS << '|';
568 switch (intrinsic.ArgumentAttributes[ai].second) {
569 case CodeGenIntrinsic::NoCapture:
570 OS << "Attribute::NoCapture";
576 } while (ai != ae && intrinsic.ArgumentAttributes[ai].first == argNo);
581 ModRefKind modRef = getModRefKind(intrinsic);
583 if (!intrinsic.canThrow || modRef) {
584 OS << " AWI[" << numAttrs++ << "] = AttributeWithIndex::get(~0, ";
585 if (!intrinsic.canThrow) {
586 OS << "Attribute::NoUnwind";
587 if (modRef) OS << '|';
590 case MRK_none: break;
591 case MRK_readonly: OS << "Attribute::ReadOnly"; break;
592 case MRK_readnone: OS << "Attribute::ReadNone"; break;
598 OS << " NumAttrs = " << numAttrs << ";\n";
601 OS << " return AttrListPtr();\n";
606 OS << " return AttrListPtr::get(AWI, NumAttrs);\n";
608 OS << "#endif // GET_INTRINSIC_ATTRIBUTES\n\n";
611 /// EmitModRefBehavior - Determine intrinsic alias analysis mod/ref behavior.
612 void IntrinsicEmitter::
613 EmitModRefBehavior(const std::vector<CodeGenIntrinsic> &Ints, raw_ostream &OS){
614 OS << "// Determine intrinsic alias analysis mod/ref behavior.\n";
615 OS << "#ifdef GET_INTRINSIC_MODREF_BEHAVIOR\n";
616 OS << "switch (iid) {\n";
617 OS << "default:\n return UnknownModRefBehavior;\n";
618 for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
619 if (Ints[i].ModRef == CodeGenIntrinsic::ReadWriteMem)
621 OS << "case " << TargetPrefix << "Intrinsic::" << Ints[i].EnumName
623 switch (Ints[i].ModRef) {
625 assert(false && "Unknown Mod/Ref type!");
626 case CodeGenIntrinsic::NoMem:
627 OS << " return DoesNotAccessMemory;\n";
629 case CodeGenIntrinsic::ReadArgMem:
630 OS << " return OnlyReadsArgumentPointees;\n";
632 case CodeGenIntrinsic::ReadMem:
633 OS << " return OnlyReadsMemory;\n";
635 case CodeGenIntrinsic::ReadWriteArgMem:
636 OS << " return OnlyAccessesArgumentPointees;\n";
641 OS << "#endif // GET_INTRINSIC_MODREF_BEHAVIOR\n\n";
644 void IntrinsicEmitter::
645 EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, raw_ostream &OS){
646 OS << "// Get the GCC builtin that corresponds to an LLVM intrinsic.\n";
647 OS << "#ifdef GET_GCC_BUILTIN_NAME\n";
648 OS << " switch (F->getIntrinsicID()) {\n";
649 OS << " default: BuiltinName = \"\"; break;\n";
650 for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
651 if (!Ints[i].GCCBuiltinName.empty()) {
652 OS << " case Intrinsic::" << Ints[i].EnumName << ": BuiltinName = \""
653 << Ints[i].GCCBuiltinName << "\"; break;\n";
660 /// EmitTargetBuiltins - All of the builtins in the specified map are for the
661 /// same target, and we already checked it.
662 static void EmitTargetBuiltins(const std::map<std::string, std::string> &BIM,
663 const std::string &TargetPrefix,
666 std::vector<StringMatcher::StringPair> Results;
668 for (std::map<std::string, std::string>::const_iterator I = BIM.begin(),
669 E = BIM.end(); I != E; ++I) {
670 std::string ResultCode =
671 "return " + TargetPrefix + "Intrinsic::" + I->second + ";";
672 Results.push_back(StringMatcher::StringPair(I->first, ResultCode));
675 StringMatcher("BuiltinName", Results, OS).Emit();
679 void IntrinsicEmitter::
680 EmitIntrinsicToGCCBuiltinMap(const std::vector<CodeGenIntrinsic> &Ints,
682 typedef std::map<std::string, std::map<std::string, std::string> > BIMTy;
684 for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
685 if (!Ints[i].GCCBuiltinName.empty()) {
686 // Get the map for this target prefix.
687 std::map<std::string, std::string> &BIM =BuiltinMap[Ints[i].TargetPrefix];
689 if (!BIM.insert(std::make_pair(Ints[i].GCCBuiltinName,
690 Ints[i].EnumName)).second)
691 throw "Intrinsic '" + Ints[i].TheDef->getName() +
692 "': duplicate GCC builtin name!";
696 OS << "// Get the LLVM intrinsic that corresponds to a GCC builtin.\n";
697 OS << "// This is used by the C front-end. The GCC builtin name is passed\n";
698 OS << "// in as BuiltinName, and a target prefix (e.g. 'ppc') is passed\n";
699 OS << "// in as TargetPrefix. The result is assigned to 'IntrinsicID'.\n";
700 OS << "#ifdef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN\n";
703 OS << "static " << TargetPrefix << "Intrinsic::ID "
704 << "getIntrinsicForGCCBuiltin(const char "
705 << "*TargetPrefixStr, const char *BuiltinNameStr) {\n";
707 OS << "Intrinsic::ID Intrinsic::getIntrinsicForGCCBuiltin(const char "
708 << "*TargetPrefixStr, const char *BuiltinNameStr) {\n";
711 OS << " StringRef BuiltinName(BuiltinNameStr);\n";
712 OS << " StringRef TargetPrefix(TargetPrefixStr);\n\n";
714 // Note: this could emit significantly better code if we cared.
715 for (BIMTy::iterator I = BuiltinMap.begin(), E = BuiltinMap.end();I != E;++I){
717 if (!I->first.empty())
718 OS << "if (TargetPrefix == \"" << I->first << "\") ";
720 OS << "/* Target Independent Builtins */ ";
723 // Emit the comparisons for this target prefix.
724 EmitTargetBuiltins(I->second, TargetPrefix, OS);
728 if (!TargetPrefix.empty())
729 OS << "(" << TargetPrefix << "Intrinsic::ID)";
730 OS << "Intrinsic::not_intrinsic;\n";