1 //===-- llvmAsmParser.y - Parser for llvm assembly files --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the bison parser for LLVM assembly languages files.
12 //===----------------------------------------------------------------------===//
15 #include "ParserInternals.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/InlineAsm.h"
18 #include "llvm/Instructions.h"
19 #include "llvm/Module.h"
20 #include "llvm/ValueSymbolTable.h"
21 #include "llvm/AutoUpgrade.h"
22 #include "llvm/Support/GetElementPtrTypeIterator.h"
23 #include "llvm/Support/CommandLine.h"
24 #include "llvm/ADT/SmallVector.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/Support/MathExtras.h"
27 #include "llvm/Support/Streams.h"
36 // The following is a gross hack. In order to rid the libAsmParser library of
37 // exceptions, we have to have a way of getting the yyparse function to go into
38 // an error situation. So, whenever we want an error to occur, the GenerateError
39 // function (see bottom of file) sets TriggerError. Then, at the end of each
40 // production in the grammer we use CHECK_FOR_ERROR which will invoke YYERROR
41 // (a goto) to put YACC in error state. Furthermore, several calls to
42 // GenerateError are made from inside productions and they must simulate the
43 // previous exception behavior by exiting the production immediately. We have
44 // replaced these with the GEN_ERROR macro which calls GeneratError and then
45 // immediately invokes YYERROR. This would be so much cleaner if it was a
46 // recursive descent parser.
47 static bool TriggerError = false;
48 #define CHECK_FOR_ERROR { if (TriggerError) { TriggerError = false; YYABORT; } }
49 #define GEN_ERROR(msg) { GenerateError(msg); YYERROR; }
51 int yyerror(const char *ErrorMsg); // Forward declarations to prevent "implicit
52 int yylex(); // declaration" of xxx warnings.
56 std::string CurFilename;
59 Debug("debug-yacc", cl::desc("Print yacc debug state changes"),
60 cl::Hidden, cl::init(false));
65 static Module *ParserResult;
67 // DEBUG_UPREFS - Define this symbol if you want to enable debugging output
68 // relating to upreferences in the input stream.
70 //#define DEBUG_UPREFS 1
72 #define UR_OUT(X) cerr << X
77 #define YYERROR_VERBOSE 1
79 static GlobalVariable *CurGV;
82 // This contains info used when building the body of a function. It is
83 // destroyed when the function is completed.
85 typedef std::vector<Value *> ValueList; // Numbered defs
88 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers=0);
90 static struct PerModuleInfo {
91 Module *CurrentModule;
92 ValueList Values; // Module level numbered definitions
93 ValueList LateResolveValues;
94 std::vector<PATypeHolder> Types;
95 std::map<ValID, PATypeHolder> LateResolveTypes;
97 /// PlaceHolderInfo - When temporary placeholder objects are created, remember
98 /// how they were referenced and on which line of the input they came from so
99 /// that we can resolve them later and print error messages as appropriate.
100 std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
102 // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
103 // references to global values. Global values may be referenced before they
104 // are defined, and if so, the temporary object that they represent is held
105 // here. This is used for forward references of GlobalValues.
107 typedef std::map<std::pair<const PointerType *,
108 ValID>, GlobalValue*> GlobalRefsType;
109 GlobalRefsType GlobalRefs;
112 // If we could not resolve some functions at function compilation time
113 // (calls to functions before they are defined), resolve them now... Types
114 // are resolved when the constant pool has been completely parsed.
116 ResolveDefinitions(LateResolveValues);
120 // Check to make sure that all global value forward references have been
123 if (!GlobalRefs.empty()) {
124 std::string UndefinedReferences = "Unresolved global references exist:\n";
126 for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
128 UndefinedReferences += " " + I->first.first->getDescription() + " " +
129 I->first.second.getName() + "\n";
131 GenerateError(UndefinedReferences);
135 // Look for intrinsic functions and CallInst that need to be upgraded
136 for (Module::iterator FI = CurrentModule->begin(),
137 FE = CurrentModule->end(); FI != FE; )
138 UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove
140 Values.clear(); // Clear out function local definitions
145 // GetForwardRefForGlobal - Check to see if there is a forward reference
146 // for this global. If so, remove it from the GlobalRefs map and return it.
147 // If not, just return null.
148 GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
149 // Check to see if there is a forward reference to this global variable...
150 // if there is, eliminate it and patch the reference to use the new def'n.
151 GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
152 GlobalValue *Ret = 0;
153 if (I != GlobalRefs.end()) {
160 bool TypeIsUnresolved(PATypeHolder* PATy) {
161 // If it isn't abstract, its resolved
162 const Type* Ty = PATy->get();
163 if (!Ty->isAbstract())
165 // Traverse the type looking for abstract types. If it isn't abstract then
166 // we don't need to traverse that leg of the type.
167 std::vector<const Type*> WorkList, SeenList;
168 WorkList.push_back(Ty);
169 while (!WorkList.empty()) {
170 const Type* Ty = WorkList.back();
171 SeenList.push_back(Ty);
173 if (const OpaqueType* OpTy = dyn_cast<OpaqueType>(Ty)) {
174 // Check to see if this is an unresolved type
175 std::map<ValID, PATypeHolder>::iterator I = LateResolveTypes.begin();
176 std::map<ValID, PATypeHolder>::iterator E = LateResolveTypes.end();
177 for ( ; I != E; ++I) {
178 if (I->second.get() == OpTy)
181 } else if (const SequentialType* SeqTy = dyn_cast<SequentialType>(Ty)) {
182 const Type* TheTy = SeqTy->getElementType();
183 if (TheTy->isAbstract() && TheTy != Ty) {
184 std::vector<const Type*>::iterator I = SeenList.begin(),
190 WorkList.push_back(TheTy);
192 } else if (const StructType* StrTy = dyn_cast<StructType>(Ty)) {
193 for (unsigned i = 0; i < StrTy->getNumElements(); ++i) {
194 const Type* TheTy = StrTy->getElementType(i);
195 if (TheTy->isAbstract() && TheTy != Ty) {
196 std::vector<const Type*>::iterator I = SeenList.begin(),
202 WorkList.push_back(TheTy);
211 static struct PerFunctionInfo {
212 Function *CurrentFunction; // Pointer to current function being created
214 ValueList Values; // Keep track of #'d definitions
216 ValueList LateResolveValues;
217 bool isDeclare; // Is this function a forward declararation?
218 GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
219 GlobalValue::VisibilityTypes Visibility;
221 /// BBForwardRefs - When we see forward references to basic blocks, keep
222 /// track of them here.
223 std::map<ValID, BasicBlock*> BBForwardRefs;
225 inline PerFunctionInfo() {
228 Linkage = GlobalValue::ExternalLinkage;
229 Visibility = GlobalValue::DefaultVisibility;
232 inline void FunctionStart(Function *M) {
237 void FunctionDone() {
238 // Any forward referenced blocks left?
239 if (!BBForwardRefs.empty()) {
240 GenerateError("Undefined reference to label " +
241 BBForwardRefs.begin()->second->getName());
245 // Resolve all forward references now.
246 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
248 Values.clear(); // Clear out function local definitions
249 BBForwardRefs.clear();
252 Linkage = GlobalValue::ExternalLinkage;
253 Visibility = GlobalValue::DefaultVisibility;
255 } CurFun; // Info for the current function...
257 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
260 //===----------------------------------------------------------------------===//
261 // Code to handle definitions of all the types
262 //===----------------------------------------------------------------------===//
264 static void InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
265 // Things that have names or are void typed don't get slot numbers
266 if (V->hasName() || (V->getType() == Type::VoidTy))
269 // In the case of function values, we have to allow for the forward reference
270 // of basic blocks, which are included in the numbering. Consequently, we keep
271 // track of the next insertion location with NextValNum. When a BB gets
272 // inserted, it could change the size of the CurFun.Values vector.
273 if (&ValueTab == &CurFun.Values) {
274 if (ValueTab.size() <= CurFun.NextValNum)
275 ValueTab.resize(CurFun.NextValNum+1);
276 ValueTab[CurFun.NextValNum++] = V;
279 // For all other lists, its okay to just tack it on the back of the vector.
280 ValueTab.push_back(V);
283 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
285 case ValID::LocalID: // Is it a numbered definition?
286 // Module constants occupy the lowest numbered slots...
287 if (D.Num < CurModule.Types.size())
288 return CurModule.Types[D.Num];
290 case ValID::LocalName: // Is it a named definition?
291 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.getName())) {
292 D.destroy(); // Free old strdup'd memory...
297 GenerateError("Internal parser error: Invalid symbol type reference");
301 // If we reached here, we referenced either a symbol that we don't know about
302 // or an id number that hasn't been read yet. We may be referencing something
303 // forward, so just create an entry to be resolved later and get to it...
305 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
308 if (inFunctionScope()) {
309 if (D.Type == ValID::LocalName) {
310 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
313 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
318 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
319 if (I != CurModule.LateResolveTypes.end())
322 Type *Typ = OpaqueType::get();
323 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
327 // getExistingVal - Look up the value specified by the provided type and
328 // the provided ValID. If the value exists and has already been defined, return
329 // it. Otherwise return null.
331 static Value *getExistingVal(const Type *Ty, const ValID &D) {
332 if (isa<FunctionType>(Ty)) {
333 GenerateError("Functions are not values and "
334 "must be referenced as pointers");
339 case ValID::LocalID: { // Is it a numbered definition?
340 // Check that the number is within bounds.
341 if (D.Num >= CurFun.Values.size())
343 Value *Result = CurFun.Values[D.Num];
344 if (Ty != Result->getType()) {
345 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
346 Result->getType()->getDescription() + "' does not match "
347 "expected type, '" + Ty->getDescription() + "'");
352 case ValID::GlobalID: { // Is it a numbered definition?
353 if (D.Num >= CurModule.Values.size())
355 Value *Result = CurModule.Values[D.Num];
356 if (Ty != Result->getType()) {
357 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
358 Result->getType()->getDescription() + "' does not match "
359 "expected type, '" + Ty->getDescription() + "'");
365 case ValID::LocalName: { // Is it a named definition?
366 if (!inFunctionScope())
368 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
369 Value *N = SymTab.lookup(D.getName());
372 if (N->getType() != Ty)
375 D.destroy(); // Free old strdup'd memory...
378 case ValID::GlobalName: { // Is it a named definition?
379 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
380 Value *N = SymTab.lookup(D.getName());
383 if (N->getType() != Ty)
386 D.destroy(); // Free old strdup'd memory...
390 // Check to make sure that "Ty" is an integral type, and that our
391 // value will fit into the specified type...
392 case ValID::ConstSIntVal: // Is it a constant pool reference??
393 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
394 GenerateError("Signed integral constant '" +
395 itostr(D.ConstPool64) + "' is invalid for type '" +
396 Ty->getDescription() + "'");
399 return ConstantInt::get(Ty, D.ConstPool64, true);
401 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
402 if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
403 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
404 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
405 "' is invalid or out of range");
407 } else { // This is really a signed reference. Transmogrify.
408 return ConstantInt::get(Ty, D.ConstPool64, true);
411 return ConstantInt::get(Ty, D.UConstPool64);
414 case ValID::ConstFPVal: // Is it a floating point const pool reference?
415 if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP)) {
416 GenerateError("FP constant invalid for type");
419 return ConstantFP::get(Ty, D.ConstPoolFP);
421 case ValID::ConstNullVal: // Is it a null value?
422 if (!isa<PointerType>(Ty)) {
423 GenerateError("Cannot create a a non pointer null");
426 return ConstantPointerNull::get(cast<PointerType>(Ty));
428 case ValID::ConstUndefVal: // Is it an undef value?
429 return UndefValue::get(Ty);
431 case ValID::ConstZeroVal: // Is it a zero value?
432 return Constant::getNullValue(Ty);
434 case ValID::ConstantVal: // Fully resolved constant?
435 if (D.ConstantValue->getType() != Ty) {
436 GenerateError("Constant expression type different from required type");
439 return D.ConstantValue;
441 case ValID::InlineAsmVal: { // Inline asm expression
442 const PointerType *PTy = dyn_cast<PointerType>(Ty);
443 const FunctionType *FTy =
444 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
445 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
446 GenerateError("Invalid type for asm constraint string");
449 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
450 D.IAD->HasSideEffects);
451 D.destroy(); // Free InlineAsmDescriptor.
455 assert(0 && "Unhandled case!");
459 assert(0 && "Unhandled case!");
463 // getVal - This function is identical to getExistingVal, except that if a
464 // value is not already defined, it "improvises" by creating a placeholder var
465 // that looks and acts just like the requested variable. When the value is
466 // defined later, all uses of the placeholder variable are replaced with the
469 static Value *getVal(const Type *Ty, const ValID &ID) {
470 if (Ty == Type::LabelTy) {
471 GenerateError("Cannot use a basic block here");
475 // See if the value has already been defined.
476 Value *V = getExistingVal(Ty, ID);
478 if (TriggerError) return 0;
480 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
481 GenerateError("Invalid use of a composite type");
485 // If we reached here, we referenced either a symbol that we don't know about
486 // or an id number that hasn't been read yet. We may be referencing something
487 // forward, so just create an entry to be resolved later and get to it...
490 case ValID::GlobalName:
491 case ValID::GlobalID: {
492 const PointerType *PTy = dyn_cast<PointerType>(Ty);
494 GenerateError("Invalid type for reference to global" );
497 const Type* ElTy = PTy->getElementType();
498 if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy))
499 V = new Function(FTy, GlobalValue::ExternalLinkage);
501 V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage);
505 V = new Argument(Ty);
508 // Remember where this forward reference came from. FIXME, shouldn't we try
509 // to recycle these things??
510 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
513 if (inFunctionScope())
514 InsertValue(V, CurFun.LateResolveValues);
516 InsertValue(V, CurModule.LateResolveValues);
520 /// defineBBVal - This is a definition of a new basic block with the specified
521 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
522 static BasicBlock *defineBBVal(const ValID &ID) {
523 assert(inFunctionScope() && "Can't get basic block at global scope!");
527 // First, see if this was forward referenced
529 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
530 if (BBI != CurFun.BBForwardRefs.end()) {
532 // The forward declaration could have been inserted anywhere in the
533 // function: insert it into the correct place now.
534 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
535 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
537 // We're about to erase the entry, save the key so we can clean it up.
538 ValID Tmp = BBI->first;
540 // Erase the forward ref from the map as its no longer "forward"
541 CurFun.BBForwardRefs.erase(ID);
543 // The key has been removed from the map but so we don't want to leave
544 // strdup'd memory around so destroy it too.
547 // If its a numbered definition, bump the number and set the BB value.
548 if (ID.Type == ValID::LocalID) {
549 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
557 // We haven't seen this BB before and its first mention is a definition.
558 // Just create it and return it.
559 std::string Name (ID.Type == ValID::LocalName ? ID.getName() : "");
560 BB = new BasicBlock(Name, CurFun.CurrentFunction);
561 if (ID.Type == ValID::LocalID) {
562 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
566 ID.destroy(); // Free strdup'd memory
570 /// getBBVal - get an existing BB value or create a forward reference for it.
572 static BasicBlock *getBBVal(const ValID &ID) {
573 assert(inFunctionScope() && "Can't get basic block at global scope!");
577 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
578 if (BBI != CurFun.BBForwardRefs.end()) {
580 } if (ID.Type == ValID::LocalName) {
581 std::string Name = ID.getName();
582 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
584 if (N->getType()->getTypeID() == Type::LabelTyID)
585 BB = cast<BasicBlock>(N);
587 GenerateError("Reference to label '" + Name + "' is actually of type '"+
588 N->getType()->getDescription() + "'");
589 } else if (ID.Type == ValID::LocalID) {
590 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
591 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
592 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
594 GenerateError("Reference to label '%" + utostr(ID.Num) +
595 "' is actually of type '"+
596 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
599 GenerateError("Illegal label reference " + ID.getName());
603 // If its already been defined, return it now.
605 ID.destroy(); // Free strdup'd memory.
609 // Otherwise, this block has not been seen before, create it.
611 if (ID.Type == ValID::LocalName)
613 BB = new BasicBlock(Name, CurFun.CurrentFunction);
615 // Insert it in the forward refs map.
616 CurFun.BBForwardRefs[ID] = BB;
622 //===----------------------------------------------------------------------===//
623 // Code to handle forward references in instructions
624 //===----------------------------------------------------------------------===//
626 // This code handles the late binding needed with statements that reference
627 // values not defined yet... for example, a forward branch, or the PHI node for
630 // This keeps a table (CurFun.LateResolveValues) of all such forward references
631 // and back patchs after we are done.
634 // ResolveDefinitions - If we could not resolve some defs at parsing
635 // time (forward branches, phi functions for loops, etc...) resolve the
639 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
640 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
641 while (!LateResolvers.empty()) {
642 Value *V = LateResolvers.back();
643 LateResolvers.pop_back();
645 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
646 CurModule.PlaceHolderInfo.find(V);
647 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
649 ValID &DID = PHI->second.first;
651 Value *TheRealValue = getExistingVal(V->getType(), DID);
655 V->replaceAllUsesWith(TheRealValue);
657 CurModule.PlaceHolderInfo.erase(PHI);
658 } else if (FutureLateResolvers) {
659 // Functions have their unresolved items forwarded to the module late
661 InsertValue(V, *FutureLateResolvers);
663 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
664 GenerateError("Reference to an invalid definition: '" +DID.getName()+
665 "' of type '" + V->getType()->getDescription() + "'",
669 GenerateError("Reference to an invalid definition: #" +
670 itostr(DID.Num) + " of type '" +
671 V->getType()->getDescription() + "'",
677 LateResolvers.clear();
680 // ResolveTypeTo - A brand new type was just declared. This means that (if
681 // name is not null) things referencing Name can be resolved. Otherwise, things
682 // refering to the number can be resolved. Do this now.
684 static void ResolveTypeTo(std::string *Name, const Type *ToTy) {
687 D = ValID::createLocalName(*Name);
689 D = ValID::createLocalID(CurModule.Types.size());
691 std::map<ValID, PATypeHolder>::iterator I =
692 CurModule.LateResolveTypes.find(D);
693 if (I != CurModule.LateResolveTypes.end()) {
694 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
695 CurModule.LateResolveTypes.erase(I);
699 // setValueName - Set the specified value to the name given. The name may be
700 // null potentially, in which case this is a noop. The string passed in is
701 // assumed to be a malloc'd string buffer, and is free'd by this function.
703 static void setValueName(Value *V, std::string *NameStr) {
704 if (!NameStr) return;
705 std::string Name(*NameStr); // Copy string
706 delete NameStr; // Free old string
708 if (V->getType() == Type::VoidTy) {
709 GenerateError("Can't assign name '" + Name+"' to value with void type");
713 assert(inFunctionScope() && "Must be in function scope!");
714 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
715 if (ST.lookup(Name)) {
716 GenerateError("Redefinition of value '" + Name + "' of type '" +
717 V->getType()->getDescription() + "'");
725 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
726 /// this is a declaration, otherwise it is a definition.
727 static GlobalVariable *
728 ParseGlobalVariable(std::string *NameStr,
729 GlobalValue::LinkageTypes Linkage,
730 GlobalValue::VisibilityTypes Visibility,
731 bool isConstantGlobal, const Type *Ty,
732 Constant *Initializer, bool IsThreadLocal) {
733 if (isa<FunctionType>(Ty)) {
734 GenerateError("Cannot declare global vars of function type");
738 const PointerType *PTy = PointerType::get(Ty);
742 Name = *NameStr; // Copy string
743 delete NameStr; // Free old string
746 // See if this global value was forward referenced. If so, recycle the
750 ID = ValID::createGlobalName(Name);
752 ID = ValID::createGlobalID(CurModule.Values.size());
755 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
756 // Move the global to the end of the list, from whereever it was
757 // previously inserted.
758 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
759 CurModule.CurrentModule->getGlobalList().remove(GV);
760 CurModule.CurrentModule->getGlobalList().push_back(GV);
761 GV->setInitializer(Initializer);
762 GV->setLinkage(Linkage);
763 GV->setVisibility(Visibility);
764 GV->setConstant(isConstantGlobal);
765 GV->setThreadLocal(IsThreadLocal);
766 InsertValue(GV, CurModule.Values);
770 // If this global has a name
772 // if the global we're parsing has an initializer (is a definition) and
773 // has external linkage.
774 if (Initializer && Linkage != GlobalValue::InternalLinkage)
775 // If there is already a global with external linkage with this name
776 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
777 // If we allow this GVar to get created, it will be renamed in the
778 // symbol table because it conflicts with an existing GVar. We can't
779 // allow redefinition of GVars whose linking indicates that their name
780 // must stay the same. Issue the error.
781 GenerateError("Redefinition of global variable named '" + Name +
782 "' of type '" + Ty->getDescription() + "'");
787 // Otherwise there is no existing GV to use, create one now.
789 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
790 CurModule.CurrentModule, IsThreadLocal);
791 GV->setVisibility(Visibility);
792 InsertValue(GV, CurModule.Values);
796 // setTypeName - Set the specified type to the name given. The name may be
797 // null potentially, in which case this is a noop. The string passed in is
798 // assumed to be a malloc'd string buffer, and is freed by this function.
800 // This function returns true if the type has already been defined, but is
801 // allowed to be redefined in the specified context. If the name is a new name
802 // for the type plane, it is inserted and false is returned.
803 static bool setTypeName(const Type *T, std::string *NameStr) {
804 assert(!inFunctionScope() && "Can't give types function-local names!");
805 if (NameStr == 0) return false;
807 std::string Name(*NameStr); // Copy string
808 delete NameStr; // Free old string
810 // We don't allow assigning names to void type
811 if (T == Type::VoidTy) {
812 GenerateError("Can't assign name '" + Name + "' to the void type");
816 // Set the type name, checking for conflicts as we do so.
817 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
819 if (AlreadyExists) { // Inserting a name that is already defined???
820 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
821 assert(Existing && "Conflict but no matching type?!");
823 // There is only one case where this is allowed: when we are refining an
824 // opaque type. In this case, Existing will be an opaque type.
825 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
826 // We ARE replacing an opaque type!
827 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
831 // Otherwise, this is an attempt to redefine a type. That's okay if
832 // the redefinition is identical to the original. This will be so if
833 // Existing and T point to the same Type object. In this one case we
834 // allow the equivalent redefinition.
835 if (Existing == T) return true; // Yes, it's equal.
837 // Any other kind of (non-equivalent) redefinition is an error.
838 GenerateError("Redefinition of type named '" + Name + "' of type '" +
839 T->getDescription() + "'");
845 //===----------------------------------------------------------------------===//
846 // Code for handling upreferences in type names...
849 // TypeContains - Returns true if Ty directly contains E in it.
851 static bool TypeContains(const Type *Ty, const Type *E) {
852 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
853 E) != Ty->subtype_end();
858 // NestingLevel - The number of nesting levels that need to be popped before
859 // this type is resolved.
860 unsigned NestingLevel;
862 // LastContainedTy - This is the type at the current binding level for the
863 // type. Every time we reduce the nesting level, this gets updated.
864 const Type *LastContainedTy;
866 // UpRefTy - This is the actual opaque type that the upreference is
870 UpRefRecord(unsigned NL, OpaqueType *URTy)
871 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
875 // UpRefs - A list of the outstanding upreferences that need to be resolved.
876 static std::vector<UpRefRecord> UpRefs;
878 /// HandleUpRefs - Every time we finish a new layer of types, this function is
879 /// called. It loops through the UpRefs vector, which is a list of the
880 /// currently active types. For each type, if the up reference is contained in
881 /// the newly completed type, we decrement the level count. When the level
882 /// count reaches zero, the upreferenced type is the type that is passed in:
883 /// thus we can complete the cycle.
885 static PATypeHolder HandleUpRefs(const Type *ty) {
886 // If Ty isn't abstract, or if there are no up-references in it, then there is
887 // nothing to resolve here.
888 if (!ty->isAbstract() || UpRefs.empty()) return ty;
891 UR_OUT("Type '" << Ty->getDescription() <<
892 "' newly formed. Resolving upreferences.\n" <<
893 UpRefs.size() << " upreferences active!\n");
895 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
896 // to zero), we resolve them all together before we resolve them to Ty. At
897 // the end of the loop, if there is anything to resolve to Ty, it will be in
899 OpaqueType *TypeToResolve = 0;
901 for (unsigned i = 0; i != UpRefs.size(); ++i) {
902 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
903 << UpRefs[i].second->getDescription() << ") = "
904 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
905 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
906 // Decrement level of upreference
907 unsigned Level = --UpRefs[i].NestingLevel;
908 UpRefs[i].LastContainedTy = Ty;
909 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
910 if (Level == 0) { // Upreference should be resolved!
911 if (!TypeToResolve) {
912 TypeToResolve = UpRefs[i].UpRefTy;
914 UR_OUT(" * Resolving upreference for "
915 << UpRefs[i].second->getDescription() << "\n";
916 std::string OldName = UpRefs[i].UpRefTy->getDescription());
917 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
918 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
919 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
921 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
922 --i; // Do not skip the next element...
928 UR_OUT(" * Resolving upreference for "
929 << UpRefs[i].second->getDescription() << "\n";
930 std::string OldName = TypeToResolve->getDescription());
931 TypeToResolve->refineAbstractTypeTo(Ty);
937 //===----------------------------------------------------------------------===//
938 // RunVMAsmParser - Define an interface to this parser
939 //===----------------------------------------------------------------------===//
941 static Module* RunParser(Module * M);
943 Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
946 CurFilename = Filename;
947 return RunParser(new Module(CurFilename));
950 Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
951 set_scan_string(AsmString);
953 CurFilename = "from_memory";
955 return RunParser(new Module (CurFilename));
964 llvm::Module *ModuleVal;
965 llvm::Function *FunctionVal;
966 llvm::BasicBlock *BasicBlockVal;
967 llvm::TerminatorInst *TermInstVal;
968 llvm::Instruction *InstVal;
969 llvm::Constant *ConstVal;
971 const llvm::Type *PrimType;
972 std::list<llvm::PATypeHolder> *TypeList;
973 llvm::PATypeHolder *TypeVal;
974 llvm::Value *ValueVal;
975 std::vector<llvm::Value*> *ValueList;
976 llvm::ArgListType *ArgList;
977 llvm::TypeWithAttrs TypeWithAttrs;
978 llvm::TypeWithAttrsList *TypeWithAttrsList;
979 llvm::ValueRefList *ValueRefList;
981 // Represent the RHS of PHI node
982 std::list<std::pair<llvm::Value*,
983 llvm::BasicBlock*> > *PHIList;
984 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
985 std::vector<llvm::Constant*> *ConstVector;
987 llvm::GlobalValue::LinkageTypes Linkage;
988 llvm::GlobalValue::VisibilityTypes Visibility;
990 llvm::APInt *APIntVal;
998 std::string *StrVal; // This memory must be deleted
999 llvm::ValID ValIDVal;
1001 llvm::Instruction::BinaryOps BinaryOpVal;
1002 llvm::Instruction::TermOps TermOpVal;
1003 llvm::Instruction::MemoryOps MemOpVal;
1004 llvm::Instruction::CastOps CastOpVal;
1005 llvm::Instruction::OtherOps OtherOpVal;
1006 llvm::ICmpInst::Predicate IPredicate;
1007 llvm::FCmpInst::Predicate FPredicate;
1010 %type <ModuleVal> Module
1011 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1012 %type <BasicBlockVal> BasicBlock InstructionList
1013 %type <TermInstVal> BBTerminatorInst
1014 %type <InstVal> Inst InstVal MemoryInst
1015 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1016 %type <ConstVector> ConstVector
1017 %type <ArgList> ArgList ArgListH
1018 %type <PHIList> PHIList
1019 %type <ValueRefList> ValueRefList // For call param lists & GEP indices
1020 %type <ValueList> IndexList // For GEP indices
1021 %type <TypeList> TypeListI
1022 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1023 %type <TypeWithAttrs> ArgType
1024 %type <JumpTable> JumpTable
1025 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1026 %type <BoolVal> ThreadLocal // 'thread_local' or not
1027 %type <BoolVal> OptVolatile // 'volatile' or not
1028 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1029 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1030 %type <Linkage> GVInternalLinkage GVExternalLinkage
1031 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1032 %type <Linkage> AliasLinkage
1033 %type <Visibility> GVVisibilityStyle
1035 // ValueRef - Unresolved reference to a definition or BB
1036 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1037 %type <ValueVal> ResolvedVal // <type> <valref> pair
1038 // Tokens and types for handling constant integer values
1040 // ESINT64VAL - A negative number within long long range
1041 %token <SInt64Val> ESINT64VAL
1043 // EUINT64VAL - A positive number within uns. long long range
1044 %token <UInt64Val> EUINT64VAL
1046 // ESAPINTVAL - A negative number with arbitrary precision
1047 %token <APIntVal> ESAPINTVAL
1049 // EUAPINTVAL - A positive number with arbitrary precision
1050 %token <APIntVal> EUAPINTVAL
1052 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1053 %token <FPVal> FPVAL // Float or Double constant
1055 // Built in types...
1056 %type <TypeVal> Types ResultTypes
1057 %type <PrimType> IntType FPType PrimType // Classifications
1058 %token <PrimType> VOID INTTYPE
1059 %token <PrimType> FLOAT DOUBLE X86_FP80 FP128 PPC_FP128 LABEL
1063 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR
1064 %token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT
1065 %type <StrVal> LocalName OptLocalName OptLocalAssign
1066 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1067 %type <StrVal> OptSection SectionString
1069 %type <UIntVal> OptAlign OptCAlign
1071 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1072 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1073 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1074 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1075 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN
1076 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1077 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1079 %type <UIntVal> OptCallingConv
1080 %type <ParamAttrs> OptParamAttrs ParamAttr
1081 %type <ParamAttrs> OptFuncAttrs FuncAttr
1083 // Basic Block Terminating Operators
1084 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1087 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1088 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1089 %token <BinaryOpVal> SHL LSHR ASHR
1091 %token <OtherOpVal> ICMP FCMP
1092 %type <IPredicate> IPredicates
1093 %type <FPredicate> FPredicates
1094 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1095 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1097 // Memory Instructions
1098 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1101 %type <CastOpVal> CastOps
1102 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1103 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1106 %token <OtherOpVal> PHI_TOK SELECT VAARG
1107 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1109 // Function Attributes
1110 %token SIGNEXT ZEROEXT NORETURN INREG SRET NOUNWIND NOALIAS BYVAL NEST
1112 // Visibility Styles
1113 %token DEFAULT HIDDEN PROTECTED
1119 // Operations that are notably excluded from this list include:
1120 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1122 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1123 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1124 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1125 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1128 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1129 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1130 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1131 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1132 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1136 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1137 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1138 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1139 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1140 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1141 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1142 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1143 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1144 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1147 // These are some types that allow classification if we only want a particular
1148 // thing... for example, only a signed, unsigned, or integral type.
1150 FPType : FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80;
1152 LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ;
1153 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1155 /// OptLocalAssign - Value producing statements have an optional assignment
1157 OptLocalAssign : LocalName '=' {
1166 GlobalName : GLOBALVAR | ATSTRINGCONSTANT ;
1168 OptGlobalAssign : GlobalAssign
1174 GlobalAssign : GlobalName '=' {
1180 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1181 | WEAK { $$ = GlobalValue::WeakLinkage; }
1182 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1183 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1184 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1188 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1189 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1190 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1194 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1195 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1196 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1197 | PROTECTED { $$ = GlobalValue::ProtectedVisibility; }
1200 FunctionDeclareLinkage
1201 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1202 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1203 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1206 FunctionDefineLinkage
1207 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1208 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1209 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1210 | WEAK { $$ = GlobalValue::WeakLinkage; }
1211 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1215 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1216 | WEAK { $$ = GlobalValue::WeakLinkage; }
1217 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1220 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1221 CCC_TOK { $$ = CallingConv::C; } |
1222 FASTCC_TOK { $$ = CallingConv::Fast; } |
1223 COLDCC_TOK { $$ = CallingConv::Cold; } |
1224 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1225 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1227 if ((unsigned)$2 != $2)
1228 GEN_ERROR("Calling conv too large");
1233 ParamAttr : ZEROEXT { $$ = ParamAttr::ZExt; }
1234 | ZEXT { $$ = ParamAttr::ZExt; }
1235 | SIGNEXT { $$ = ParamAttr::SExt; }
1236 | SEXT { $$ = ParamAttr::SExt; }
1237 | INREG { $$ = ParamAttr::InReg; }
1238 | SRET { $$ = ParamAttr::StructRet; }
1239 | NOALIAS { $$ = ParamAttr::NoAlias; }
1240 | BYVAL { $$ = ParamAttr::ByVal; }
1241 | NEST { $$ = ParamAttr::Nest; }
1244 OptParamAttrs : /* empty */ { $$ = ParamAttr::None; }
1245 | OptParamAttrs ParamAttr {
1250 FuncAttr : NORETURN { $$ = ParamAttr::NoReturn; }
1251 | NOUNWIND { $$ = ParamAttr::NoUnwind; }
1252 | ZEROEXT { $$ = ParamAttr::ZExt; }
1253 | SIGNEXT { $$ = ParamAttr::SExt; }
1256 OptFuncAttrs : /* empty */ { $$ = ParamAttr::None; }
1257 | OptFuncAttrs FuncAttr {
1262 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1263 // a comma before it.
1264 OptAlign : /*empty*/ { $$ = 0; } |
1267 if ($$ != 0 && !isPowerOf2_32($$))
1268 GEN_ERROR("Alignment must be a power of two");
1271 OptCAlign : /*empty*/ { $$ = 0; } |
1272 ',' ALIGN EUINT64VAL {
1274 if ($$ != 0 && !isPowerOf2_32($$))
1275 GEN_ERROR("Alignment must be a power of two");
1280 SectionString : SECTION STRINGCONSTANT {
1281 for (unsigned i = 0, e = $2->length(); i != e; ++i)
1282 if ((*$2)[i] == '"' || (*$2)[i] == '\\')
1283 GEN_ERROR("Invalid character in section name");
1288 OptSection : /*empty*/ { $$ = 0; } |
1289 SectionString { $$ = $1; };
1291 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1292 // is set to be the global we are processing.
1294 GlobalVarAttributes : /* empty */ {} |
1295 ',' GlobalVarAttribute GlobalVarAttributes {};
1296 GlobalVarAttribute : SectionString {
1297 CurGV->setSection(*$1);
1301 | ALIGN EUINT64VAL {
1302 if ($2 != 0 && !isPowerOf2_32($2))
1303 GEN_ERROR("Alignment must be a power of two");
1304 CurGV->setAlignment($2);
1308 //===----------------------------------------------------------------------===//
1309 // Types includes all predefined types... except void, because it can only be
1310 // used in specific contexts (function returning void for example).
1312 // Derived types are added later...
1314 PrimType : INTTYPE | FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80 | LABEL ;
1318 $$ = new PATypeHolder(OpaqueType::get());
1322 $$ = new PATypeHolder($1);
1325 | Types '*' { // Pointer type?
1326 if (*$1 == Type::LabelTy)
1327 GEN_ERROR("Cannot form a pointer to a basic block");
1328 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1)));
1332 | SymbolicValueRef { // Named types are also simple types...
1333 const Type* tmp = getTypeVal($1);
1335 $$ = new PATypeHolder(tmp);
1337 | '\\' EUINT64VAL { // Type UpReference
1338 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1339 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1340 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1341 $$ = new PATypeHolder(OT);
1342 UR_OUT("New Upreference!\n");
1345 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1346 std::vector<const Type*> Params;
1347 ParamAttrsVector Attrs;
1348 if ($5 != ParamAttr::None) {
1349 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1353 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1354 for (; I != E; ++I, ++index) {
1355 const Type *Ty = I->Ty->get();
1356 Params.push_back(Ty);
1357 if (Ty != Type::VoidTy)
1358 if (I->Attrs != ParamAttr::None) {
1359 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1363 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1364 if (isVarArg) Params.pop_back();
1366 ParamAttrsList *ActualAttrs = 0;
1368 ActualAttrs = ParamAttrsList::get(Attrs);
1369 FunctionType *FT = FunctionType::get(*$1, Params, isVarArg, ActualAttrs);
1370 delete $3; // Delete the argument list
1371 delete $1; // Delete the return type handle
1372 $$ = new PATypeHolder(HandleUpRefs(FT));
1375 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1376 std::vector<const Type*> Params;
1377 ParamAttrsVector Attrs;
1378 if ($5 != ParamAttr::None) {
1379 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1382 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1384 for ( ; I != E; ++I, ++index) {
1385 const Type* Ty = I->Ty->get();
1386 Params.push_back(Ty);
1387 if (Ty != Type::VoidTy)
1388 if (I->Attrs != ParamAttr::None) {
1389 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1393 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1394 if (isVarArg) Params.pop_back();
1396 ParamAttrsList *ActualAttrs = 0;
1398 ActualAttrs = ParamAttrsList::get(Attrs);
1400 FunctionType *FT = FunctionType::get($1, Params, isVarArg, ActualAttrs);
1401 delete $3; // Delete the argument list
1402 $$ = new PATypeHolder(HandleUpRefs(FT));
1406 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1407 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
1411 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1412 const llvm::Type* ElemTy = $4->get();
1413 if ((unsigned)$2 != $2)
1414 GEN_ERROR("Unsigned result not equal to signed result");
1415 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1416 GEN_ERROR("Element type of a VectorType must be primitive");
1417 if (!isPowerOf2_32($2))
1418 GEN_ERROR("Vector length should be a power of 2");
1419 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1423 | '{' TypeListI '}' { // Structure type?
1424 std::vector<const Type*> Elements;
1425 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1426 E = $2->end(); I != E; ++I)
1427 Elements.push_back(*I);
1429 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1433 | '{' '}' { // Empty structure type?
1434 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1437 | '<' '{' TypeListI '}' '>' {
1438 std::vector<const Type*> Elements;
1439 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1440 E = $3->end(); I != E; ++I)
1441 Elements.push_back(*I);
1443 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1447 | '<' '{' '}' '>' { // Empty structure type?
1448 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1454 : Types OptParamAttrs {
1462 if (!UpRefs.empty())
1463 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1464 if (!(*$1)->isFirstClassType())
1465 GEN_ERROR("LLVM functions cannot return aggregate types");
1469 $$ = new PATypeHolder(Type::VoidTy);
1473 ArgTypeList : ArgType {
1474 $$ = new TypeWithAttrsList();
1478 | ArgTypeList ',' ArgType {
1479 ($$=$1)->push_back($3);
1486 | ArgTypeList ',' DOTDOTDOT {
1488 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1489 TWA.Ty = new PATypeHolder(Type::VoidTy);
1494 $$ = new TypeWithAttrsList;
1495 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1496 TWA.Ty = new PATypeHolder(Type::VoidTy);
1501 $$ = new TypeWithAttrsList();
1505 // TypeList - Used for struct declarations and as a basis for function type
1506 // declaration type lists
1509 $$ = new std::list<PATypeHolder>();
1514 | TypeListI ',' Types {
1515 ($$=$1)->push_back(*$3);
1520 // ConstVal - The various declarations that go into the constant pool. This
1521 // production is used ONLY to represent constants that show up AFTER a 'const',
1522 // 'constant' or 'global' token at global scope. Constants that can be inlined
1523 // into other expressions (such as integers and constexprs) are handled by the
1524 // ResolvedVal, ValueRef and ConstValueRef productions.
1526 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1527 if (!UpRefs.empty())
1528 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1529 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1531 GEN_ERROR("Cannot make array constant with type: '" +
1532 (*$1)->getDescription() + "'");
1533 const Type *ETy = ATy->getElementType();
1534 int NumElements = ATy->getNumElements();
1536 // Verify that we have the correct size...
1537 if (NumElements != -1 && NumElements != (int)$3->size())
1538 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1539 utostr($3->size()) + " arguments, but has size of " +
1540 itostr(NumElements) + "");
1542 // Verify all elements are correct type!
1543 for (unsigned i = 0; i < $3->size(); i++) {
1544 if (ETy != (*$3)[i]->getType())
1545 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1546 ETy->getDescription() +"' as required!\nIt is of type '"+
1547 (*$3)[i]->getType()->getDescription() + "'.");
1550 $$ = ConstantArray::get(ATy, *$3);
1551 delete $1; delete $3;
1555 if (!UpRefs.empty())
1556 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1557 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1559 GEN_ERROR("Cannot make array constant with type: '" +
1560 (*$1)->getDescription() + "'");
1562 int NumElements = ATy->getNumElements();
1563 if (NumElements != -1 && NumElements != 0)
1564 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1565 " arguments, but has size of " + itostr(NumElements) +"");
1566 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1570 | Types 'c' STRINGCONSTANT {
1571 if (!UpRefs.empty())
1572 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1573 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1575 GEN_ERROR("Cannot make array constant with type: '" +
1576 (*$1)->getDescription() + "'");
1578 int NumElements = ATy->getNumElements();
1579 const Type *ETy = ATy->getElementType();
1580 if (NumElements != -1 && NumElements != int($3->length()))
1581 GEN_ERROR("Can't build string constant of size " +
1582 itostr((int)($3->length())) +
1583 " when array has size " + itostr(NumElements) + "");
1584 std::vector<Constant*> Vals;
1585 if (ETy == Type::Int8Ty) {
1586 for (unsigned i = 0; i < $3->length(); ++i)
1587 Vals.push_back(ConstantInt::get(ETy, (*$3)[i]));
1590 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1593 $$ = ConstantArray::get(ATy, Vals);
1597 | Types '<' ConstVector '>' { // Nonempty unsized arr
1598 if (!UpRefs.empty())
1599 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1600 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1602 GEN_ERROR("Cannot make packed constant with type: '" +
1603 (*$1)->getDescription() + "'");
1604 const Type *ETy = PTy->getElementType();
1605 int NumElements = PTy->getNumElements();
1607 // Verify that we have the correct size...
1608 if (NumElements != -1 && NumElements != (int)$3->size())
1609 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1610 utostr($3->size()) + " arguments, but has size of " +
1611 itostr(NumElements) + "");
1613 // Verify all elements are correct type!
1614 for (unsigned i = 0; i < $3->size(); i++) {
1615 if (ETy != (*$3)[i]->getType())
1616 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1617 ETy->getDescription() +"' as required!\nIt is of type '"+
1618 (*$3)[i]->getType()->getDescription() + "'.");
1621 $$ = ConstantVector::get(PTy, *$3);
1622 delete $1; delete $3;
1625 | Types '{' ConstVector '}' {
1626 const StructType *STy = dyn_cast<StructType>($1->get());
1628 GEN_ERROR("Cannot make struct constant with type: '" +
1629 (*$1)->getDescription() + "'");
1631 if ($3->size() != STy->getNumContainedTypes())
1632 GEN_ERROR("Illegal number of initializers for structure type");
1634 // Check to ensure that constants are compatible with the type initializer!
1635 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1636 if ((*$3)[i]->getType() != STy->getElementType(i))
1637 GEN_ERROR("Expected type '" +
1638 STy->getElementType(i)->getDescription() +
1639 "' for element #" + utostr(i) +
1640 " of structure initializer");
1642 // Check to ensure that Type is not packed
1643 if (STy->isPacked())
1644 GEN_ERROR("Unpacked Initializer to vector type '" +
1645 STy->getDescription() + "'");
1647 $$ = ConstantStruct::get(STy, *$3);
1648 delete $1; delete $3;
1652 if (!UpRefs.empty())
1653 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1654 const StructType *STy = dyn_cast<StructType>($1->get());
1656 GEN_ERROR("Cannot make struct constant with type: '" +
1657 (*$1)->getDescription() + "'");
1659 if (STy->getNumContainedTypes() != 0)
1660 GEN_ERROR("Illegal number of initializers for structure type");
1662 // Check to ensure that Type is not packed
1663 if (STy->isPacked())
1664 GEN_ERROR("Unpacked Initializer to vector type '" +
1665 STy->getDescription() + "'");
1667 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1671 | Types '<' '{' ConstVector '}' '>' {
1672 const StructType *STy = dyn_cast<StructType>($1->get());
1674 GEN_ERROR("Cannot make struct constant with type: '" +
1675 (*$1)->getDescription() + "'");
1677 if ($4->size() != STy->getNumContainedTypes())
1678 GEN_ERROR("Illegal number of initializers for structure type");
1680 // Check to ensure that constants are compatible with the type initializer!
1681 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1682 if ((*$4)[i]->getType() != STy->getElementType(i))
1683 GEN_ERROR("Expected type '" +
1684 STy->getElementType(i)->getDescription() +
1685 "' for element #" + utostr(i) +
1686 " of structure initializer");
1688 // Check to ensure that Type is packed
1689 if (!STy->isPacked())
1690 GEN_ERROR("Vector initializer to non-vector type '" +
1691 STy->getDescription() + "'");
1693 $$ = ConstantStruct::get(STy, *$4);
1694 delete $1; delete $4;
1697 | Types '<' '{' '}' '>' {
1698 if (!UpRefs.empty())
1699 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1700 const StructType *STy = dyn_cast<StructType>($1->get());
1702 GEN_ERROR("Cannot make struct constant with type: '" +
1703 (*$1)->getDescription() + "'");
1705 if (STy->getNumContainedTypes() != 0)
1706 GEN_ERROR("Illegal number of initializers for structure type");
1708 // Check to ensure that Type is packed
1709 if (!STy->isPacked())
1710 GEN_ERROR("Vector initializer to non-vector type '" +
1711 STy->getDescription() + "'");
1713 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1718 if (!UpRefs.empty())
1719 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1720 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1722 GEN_ERROR("Cannot make null pointer constant with type: '" +
1723 (*$1)->getDescription() + "'");
1725 $$ = ConstantPointerNull::get(PTy);
1730 if (!UpRefs.empty())
1731 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1732 $$ = UndefValue::get($1->get());
1736 | Types SymbolicValueRef {
1737 if (!UpRefs.empty())
1738 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1739 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1741 GEN_ERROR("Global const reference must be a pointer type");
1743 // ConstExprs can exist in the body of a function, thus creating
1744 // GlobalValues whenever they refer to a variable. Because we are in
1745 // the context of a function, getExistingVal will search the functions
1746 // symbol table instead of the module symbol table for the global symbol,
1747 // which throws things all off. To get around this, we just tell
1748 // getExistingVal that we are at global scope here.
1750 Function *SavedCurFn = CurFun.CurrentFunction;
1751 CurFun.CurrentFunction = 0;
1753 Value *V = getExistingVal(Ty, $2);
1756 CurFun.CurrentFunction = SavedCurFn;
1758 // If this is an initializer for a constant pointer, which is referencing a
1759 // (currently) undefined variable, create a stub now that shall be replaced
1760 // in the future with the right type of variable.
1763 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1764 const PointerType *PT = cast<PointerType>(Ty);
1766 // First check to see if the forward references value is already created!
1767 PerModuleInfo::GlobalRefsType::iterator I =
1768 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1770 if (I != CurModule.GlobalRefs.end()) {
1771 V = I->second; // Placeholder already exists, use it...
1775 if ($2.Type == ValID::GlobalName)
1776 Name = $2.getName();
1777 else if ($2.Type != ValID::GlobalID)
1778 GEN_ERROR("Invalid reference to global");
1780 // Create the forward referenced global.
1782 if (const FunctionType *FTy =
1783 dyn_cast<FunctionType>(PT->getElementType())) {
1784 GV = new Function(FTy, GlobalValue::ExternalWeakLinkage, Name,
1785 CurModule.CurrentModule);
1787 GV = new GlobalVariable(PT->getElementType(), false,
1788 GlobalValue::ExternalWeakLinkage, 0,
1789 Name, CurModule.CurrentModule);
1792 // Keep track of the fact that we have a forward ref to recycle it
1793 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1798 $$ = cast<GlobalValue>(V);
1799 delete $1; // Free the type handle
1803 if (!UpRefs.empty())
1804 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1805 if ($1->get() != $2->getType())
1806 GEN_ERROR("Mismatched types for constant expression: " +
1807 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1812 | Types ZEROINITIALIZER {
1813 if (!UpRefs.empty())
1814 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1815 const Type *Ty = $1->get();
1816 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1817 GEN_ERROR("Cannot create a null initialized value of this type");
1818 $$ = Constant::getNullValue(Ty);
1822 | IntType ESINT64VAL { // integral constants
1823 if (!ConstantInt::isValueValidForType($1, $2))
1824 GEN_ERROR("Constant value doesn't fit in type");
1825 $$ = ConstantInt::get($1, $2, true);
1828 | IntType ESAPINTVAL { // arbitrary precision integer constants
1829 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1830 if ($2->getBitWidth() > BitWidth) {
1831 GEN_ERROR("Constant value does not fit in type");
1833 $2->sextOrTrunc(BitWidth);
1834 $$ = ConstantInt::get(*$2);
1838 | IntType EUINT64VAL { // integral constants
1839 if (!ConstantInt::isValueValidForType($1, $2))
1840 GEN_ERROR("Constant value doesn't fit in type");
1841 $$ = ConstantInt::get($1, $2, false);
1844 | IntType EUAPINTVAL { // arbitrary precision integer constants
1845 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1846 if ($2->getBitWidth() > BitWidth) {
1847 GEN_ERROR("Constant value does not fit in type");
1849 $2->zextOrTrunc(BitWidth);
1850 $$ = ConstantInt::get(*$2);
1854 | INTTYPE TRUETOK { // Boolean constants
1855 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1856 $$ = ConstantInt::getTrue();
1859 | INTTYPE FALSETOK { // Boolean constants
1860 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1861 $$ = ConstantInt::getFalse();
1864 | FPType FPVAL { // Float & Double constants
1865 if (!ConstantFP::isValueValidForType($1, $2))
1866 GEN_ERROR("Floating point constant invalid for type");
1867 $$ = ConstantFP::get($1, $2);
1872 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1873 if (!UpRefs.empty())
1874 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1876 const Type *DestTy = $5->get();
1877 if (!CastInst::castIsValid($1, $3, DestTy))
1878 GEN_ERROR("invalid cast opcode for cast from '" +
1879 Val->getType()->getDescription() + "' to '" +
1880 DestTy->getDescription() + "'");
1881 $$ = ConstantExpr::getCast($1, $3, DestTy);
1884 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1885 if (!isa<PointerType>($3->getType()))
1886 GEN_ERROR("GetElementPtr requires a pointer operand");
1889 GetElementPtrInst::getIndexedType($3->getType(), &(*$4)[0], $4->size(),
1892 GEN_ERROR("Index list invalid for constant getelementptr");
1894 SmallVector<Constant*, 8> IdxVec;
1895 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1896 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1897 IdxVec.push_back(C);
1899 GEN_ERROR("Indices to constant getelementptr must be constants");
1903 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1906 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1907 if ($3->getType() != Type::Int1Ty)
1908 GEN_ERROR("Select condition must be of boolean type");
1909 if ($5->getType() != $7->getType())
1910 GEN_ERROR("Select operand types must match");
1911 $$ = ConstantExpr::getSelect($3, $5, $7);
1914 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1915 if ($3->getType() != $5->getType())
1916 GEN_ERROR("Binary operator types must match");
1918 $$ = ConstantExpr::get($1, $3, $5);
1920 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1921 if ($3->getType() != $5->getType())
1922 GEN_ERROR("Logical operator types must match");
1923 if (!$3->getType()->isInteger()) {
1924 if (Instruction::isShift($1) || !isa<VectorType>($3->getType()) ||
1925 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1926 GEN_ERROR("Logical operator requires integral operands");
1928 $$ = ConstantExpr::get($1, $3, $5);
1931 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1932 if ($4->getType() != $6->getType())
1933 GEN_ERROR("icmp operand types must match");
1934 $$ = ConstantExpr::getICmp($2, $4, $6);
1936 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1937 if ($4->getType() != $6->getType())
1938 GEN_ERROR("fcmp operand types must match");
1939 $$ = ConstantExpr::getFCmp($2, $4, $6);
1941 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1942 if (!ExtractElementInst::isValidOperands($3, $5))
1943 GEN_ERROR("Invalid extractelement operands");
1944 $$ = ConstantExpr::getExtractElement($3, $5);
1947 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1948 if (!InsertElementInst::isValidOperands($3, $5, $7))
1949 GEN_ERROR("Invalid insertelement operands");
1950 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1953 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1954 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
1955 GEN_ERROR("Invalid shufflevector operands");
1956 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
1961 // ConstVector - A list of comma separated constants.
1962 ConstVector : ConstVector ',' ConstVal {
1963 ($$ = $1)->push_back($3);
1967 $$ = new std::vector<Constant*>();
1973 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
1974 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
1977 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
1979 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
1980 AliaseeRef : ResultTypes SymbolicValueRef {
1981 const Type* VTy = $1->get();
1982 Value *V = getVal(VTy, $2);
1984 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
1986 GEN_ERROR("Aliases can be created only to global values");
1992 | BITCAST '(' AliaseeRef TO Types ')' {
1994 const Type *DestTy = $5->get();
1995 if (!CastInst::castIsValid($1, $3, DestTy))
1996 GEN_ERROR("invalid cast opcode for cast from '" +
1997 Val->getType()->getDescription() + "' to '" +
1998 DestTy->getDescription() + "'");
2000 $$ = ConstantExpr::getCast($1, $3, DestTy);
2005 //===----------------------------------------------------------------------===//
2006 // Rules to match Modules
2007 //===----------------------------------------------------------------------===//
2009 // Module rule: Capture the result of parsing the whole file into a result
2014 $$ = ParserResult = CurModule.CurrentModule;
2015 CurModule.ModuleDone();
2019 $$ = ParserResult = CurModule.CurrentModule;
2020 CurModule.ModuleDone();
2027 | DefinitionList Definition
2031 : DEFINE { CurFun.isDeclare = false; } Function {
2032 CurFun.FunctionDone();
2035 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2038 | MODULE ASM_TOK AsmBlock {
2041 | OptLocalAssign TYPE Types {
2042 if (!UpRefs.empty())
2043 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2044 // Eagerly resolve types. This is not an optimization, this is a
2045 // requirement that is due to the fact that we could have this:
2047 // %list = type { %list * }
2048 // %list = type { %list * } ; repeated type decl
2050 // If types are not resolved eagerly, then the two types will not be
2051 // determined to be the same type!
2053 ResolveTypeTo($1, *$3);
2055 if (!setTypeName(*$3, $1) && !$1) {
2057 // If this is a named type that is not a redefinition, add it to the slot
2059 CurModule.Types.push_back(*$3);
2065 | OptLocalAssign TYPE VOID {
2066 ResolveTypeTo($1, $3);
2068 if (!setTypeName($3, $1) && !$1) {
2070 // If this is a named type that is not a redefinition, add it to the slot
2072 CurModule.Types.push_back($3);
2076 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal {
2077 /* "Externally Visible" Linkage */
2079 GEN_ERROR("Global value initializer is not a constant");
2080 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2081 $2, $4, $5->getType(), $5, $3);
2083 } GlobalVarAttributes {
2086 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2089 GEN_ERROR("Global value initializer is not a constant");
2090 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4);
2092 } GlobalVarAttributes {
2095 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2097 if (!UpRefs.empty())
2098 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2099 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4);
2102 } GlobalVarAttributes {
2106 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2113 GEN_ERROR("Alias name cannot be empty");
2115 Constant* Aliasee = $5;
2117 GEN_ERROR(std::string("Invalid aliasee for alias: ") + Name);
2119 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2120 CurModule.CurrentModule);
2121 GA->setVisibility($2);
2122 InsertValue(GA, CurModule.Values);
2125 | TARGET TargetDefinition {
2128 | DEPLIBS '=' LibrariesDefinition {
2134 AsmBlock : STRINGCONSTANT {
2135 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2136 if (AsmSoFar.empty())
2137 CurModule.CurrentModule->setModuleInlineAsm(*$1);
2139 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+*$1);
2144 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2145 CurModule.CurrentModule->setTargetTriple(*$3);
2148 | DATALAYOUT '=' STRINGCONSTANT {
2149 CurModule.CurrentModule->setDataLayout(*$3);
2153 LibrariesDefinition : '[' LibList ']';
2155 LibList : LibList ',' STRINGCONSTANT {
2156 CurModule.CurrentModule->addLibrary(*$3);
2161 CurModule.CurrentModule->addLibrary(*$1);
2165 | /* empty: end of list */ {
2170 //===----------------------------------------------------------------------===//
2171 // Rules to match Function Headers
2172 //===----------------------------------------------------------------------===//
2174 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2175 if (!UpRefs.empty())
2176 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2177 if (*$3 == Type::VoidTy)
2178 GEN_ERROR("void typed arguments are invalid");
2179 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2184 | Types OptParamAttrs OptLocalName {
2185 if (!UpRefs.empty())
2186 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2187 if (*$1 == Type::VoidTy)
2188 GEN_ERROR("void typed arguments are invalid");
2189 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2190 $$ = new ArgListType;
2195 ArgList : ArgListH {
2199 | ArgListH ',' DOTDOTDOT {
2201 struct ArgListEntry E;
2202 E.Ty = new PATypeHolder(Type::VoidTy);
2204 E.Attrs = ParamAttr::None;
2209 $$ = new ArgListType;
2210 struct ArgListEntry E;
2211 E.Ty = new PATypeHolder(Type::VoidTy);
2213 E.Attrs = ParamAttr::None;
2222 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2223 OptFuncAttrs OptSection OptAlign {
2224 std::string FunctionName(*$3);
2225 delete $3; // Free strdup'd memory!
2227 // Check the function result for abstractness if this is a define. We should
2228 // have no abstract types at this point
2229 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2230 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2232 std::vector<const Type*> ParamTypeList;
2233 ParamAttrsVector Attrs;
2234 if ($7 != ParamAttr::None) {
2235 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $7;
2236 Attrs.push_back(PAWI);
2238 if ($5) { // If there are arguments...
2240 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I, ++index) {
2241 const Type* Ty = I->Ty->get();
2242 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2243 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2244 ParamTypeList.push_back(Ty);
2245 if (Ty != Type::VoidTy)
2246 if (I->Attrs != ParamAttr::None) {
2247 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2248 Attrs.push_back(PAWI);
2253 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2254 if (isVarArg) ParamTypeList.pop_back();
2256 ParamAttrsList *PAL = 0;
2258 PAL = ParamAttrsList::get(Attrs);
2260 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg, PAL);
2261 const PointerType *PFT = PointerType::get(FT);
2265 if (!FunctionName.empty()) {
2266 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2268 ID = ValID::createGlobalID(CurModule.Values.size());
2272 // See if this function was forward referenced. If so, recycle the object.
2273 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2274 // Move the function to the end of the list, from whereever it was
2275 // previously inserted.
2276 Fn = cast<Function>(FWRef);
2277 CurModule.CurrentModule->getFunctionList().remove(Fn);
2278 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2279 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2280 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2281 if (Fn->getFunctionType() != FT) {
2282 // The existing function doesn't have the same type. This is an overload
2284 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2285 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2286 // Neither the existing or the current function is a declaration and they
2287 // have the same name and same type. Clearly this is a redefinition.
2288 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2289 } if (Fn->isDeclaration()) {
2290 // Make sure to strip off any argument names so we can't get conflicts.
2291 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2295 } else { // Not already defined?
2296 Fn = new Function(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2297 CurModule.CurrentModule);
2299 InsertValue(Fn, CurModule.Values);
2302 CurFun.FunctionStart(Fn);
2304 if (CurFun.isDeclare) {
2305 // If we have declaration, always overwrite linkage. This will allow us to
2306 // correctly handle cases, when pointer to function is passed as argument to
2307 // another function.
2308 Fn->setLinkage(CurFun.Linkage);
2309 Fn->setVisibility(CurFun.Visibility);
2311 Fn->setCallingConv($1);
2312 Fn->setAlignment($9);
2314 Fn->setSection(*$8);
2318 // Add all of the arguments we parsed to the function...
2319 if ($5) { // Is null if empty...
2320 if (isVarArg) { // Nuke the last entry
2321 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2322 "Not a varargs marker!");
2323 delete $5->back().Ty;
2324 $5->pop_back(); // Delete the last entry
2326 Function::arg_iterator ArgIt = Fn->arg_begin();
2327 Function::arg_iterator ArgEnd = Fn->arg_end();
2329 for (ArgListType::iterator I = $5->begin();
2330 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2331 delete I->Ty; // Delete the typeholder...
2332 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2338 delete $5; // We're now done with the argument list
2343 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2345 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2346 $$ = CurFun.CurrentFunction;
2348 // Make sure that we keep track of the linkage type even if there was a
2349 // previous "declare".
2351 $$->setVisibility($2);
2354 END : ENDTOK | '}'; // Allow end of '}' to end a function
2356 Function : BasicBlockList END {
2361 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2362 CurFun.CurrentFunction->setLinkage($1);
2363 CurFun.CurrentFunction->setVisibility($2);
2364 $$ = CurFun.CurrentFunction;
2365 CurFun.FunctionDone();
2369 //===----------------------------------------------------------------------===//
2370 // Rules to match Basic Blocks
2371 //===----------------------------------------------------------------------===//
2373 OptSideEffect : /* empty */ {
2382 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2383 $$ = ValID::create($1);
2387 $$ = ValID::create($1);
2390 | FPVAL { // Perhaps it's an FP constant?
2391 $$ = ValID::create($1);
2395 $$ = ValID::create(ConstantInt::getTrue());
2399 $$ = ValID::create(ConstantInt::getFalse());
2403 $$ = ValID::createNull();
2407 $$ = ValID::createUndef();
2410 | ZEROINITIALIZER { // A vector zero constant.
2411 $$ = ValID::createZeroInit();
2414 | '<' ConstVector '>' { // Nonempty unsized packed vector
2415 const Type *ETy = (*$2)[0]->getType();
2416 int NumElements = $2->size();
2418 VectorType* pt = VectorType::get(ETy, NumElements);
2419 PATypeHolder* PTy = new PATypeHolder(
2427 // Verify all elements are correct type!
2428 for (unsigned i = 0; i < $2->size(); i++) {
2429 if (ETy != (*$2)[i]->getType())
2430 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2431 ETy->getDescription() +"' as required!\nIt is of type '" +
2432 (*$2)[i]->getType()->getDescription() + "'.");
2435 $$ = ValID::create(ConstantVector::get(pt, *$2));
2436 delete PTy; delete $2;
2440 $$ = ValID::create($1);
2443 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2444 $$ = ValID::createInlineAsm(*$3, *$5, $2);
2450 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2453 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2454 $$ = ValID::createLocalID($1);
2458 $$ = ValID::createGlobalID($1);
2461 | LocalName { // Is it a named reference...?
2462 $$ = ValID::createLocalName(*$1);
2466 | GlobalName { // Is it a named reference...?
2467 $$ = ValID::createGlobalName(*$1);
2472 // ValueRef - A reference to a definition... either constant or symbolic
2473 ValueRef : SymbolicValueRef | ConstValueRef;
2476 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2477 // type immediately preceeds the value reference, and allows complex constant
2478 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2479 ResolvedVal : Types ValueRef {
2480 if (!UpRefs.empty())
2481 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2482 $$ = getVal(*$1, $2);
2488 BasicBlockList : BasicBlockList BasicBlock {
2492 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2498 // Basic blocks are terminated by branching instructions:
2499 // br, br/cc, switch, ret
2501 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2502 setValueName($3, $2);
2505 $1->getInstList().push_back($3);
2510 InstructionList : InstructionList Inst {
2511 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2512 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2513 if (CI2->getParent() == 0)
2514 $1->getInstList().push_back(CI2);
2515 $1->getInstList().push_back($2);
2519 | /* empty */ { // Empty space between instruction lists
2520 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2523 | LABELSTR { // Labelled (named) basic block
2524 $$ = defineBBVal(ValID::createLocalName(*$1));
2530 BBTerminatorInst : RET ResolvedVal { // Return with a result...
2531 $$ = new ReturnInst($2);
2534 | RET VOID { // Return with no result...
2535 $$ = new ReturnInst();
2538 | BR LABEL ValueRef { // Unconditional Branch...
2539 BasicBlock* tmpBB = getBBVal($3);
2541 $$ = new BranchInst(tmpBB);
2542 } // Conditional Branch...
2543 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2544 assert(cast<IntegerType>($2)->getBitWidth() == 1 && "Not Bool?");
2545 BasicBlock* tmpBBA = getBBVal($6);
2547 BasicBlock* tmpBBB = getBBVal($9);
2549 Value* tmpVal = getVal(Type::Int1Ty, $3);
2551 $$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
2553 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2554 Value* tmpVal = getVal($2, $3);
2556 BasicBlock* tmpBB = getBBVal($6);
2558 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
2561 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2563 for (; I != E; ++I) {
2564 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2565 S->addCase(CI, I->second);
2567 GEN_ERROR("Switch case is constant, but not a simple integer");
2572 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2573 Value* tmpVal = getVal($2, $3);
2575 BasicBlock* tmpBB = getBBVal($6);
2577 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
2581 | INVOKE OptCallingConv ResultTypes ValueRef '(' ValueRefList ')' OptFuncAttrs
2582 TO LABEL ValueRef UNWIND LABEL ValueRef {
2584 // Handle the short syntax
2585 const PointerType *PFTy = 0;
2586 const FunctionType *Ty = 0;
2587 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2588 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2589 // Pull out the types of all of the arguments...
2590 std::vector<const Type*> ParamTypes;
2591 ParamAttrsVector Attrs;
2592 if ($8 != ParamAttr::None) {
2593 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2594 Attrs.push_back(PAWI);
2596 ValueRefList::iterator I = $6->begin(), E = $6->end();
2598 for (; I != E; ++I, ++index) {
2599 const Type *Ty = I->Val->getType();
2600 if (Ty == Type::VoidTy)
2601 GEN_ERROR("Short call syntax cannot be used with varargs");
2602 ParamTypes.push_back(Ty);
2603 if (I->Attrs != ParamAttr::None) {
2604 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2605 Attrs.push_back(PAWI);
2609 ParamAttrsList *PAL = 0;
2611 PAL = ParamAttrsList::get(Attrs);
2612 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2613 PFTy = PointerType::get(Ty);
2618 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2620 BasicBlock *Normal = getBBVal($11);
2622 BasicBlock *Except = getBBVal($14);
2625 // Check the arguments
2627 if ($6->empty()) { // Has no arguments?
2628 // Make sure no arguments is a good thing!
2629 if (Ty->getNumParams() != 0)
2630 GEN_ERROR("No arguments passed to a function that "
2631 "expects arguments");
2632 } else { // Has arguments?
2633 // Loop through FunctionType's arguments and ensure they are specified
2635 FunctionType::param_iterator I = Ty->param_begin();
2636 FunctionType::param_iterator E = Ty->param_end();
2637 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2639 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2640 if (ArgI->Val->getType() != *I)
2641 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2642 (*I)->getDescription() + "'");
2643 Args.push_back(ArgI->Val);
2646 if (Ty->isVarArg()) {
2648 for (; ArgI != ArgE; ++ArgI)
2649 Args.push_back(ArgI->Val); // push the remaining varargs
2650 } else if (I != E || ArgI != ArgE)
2651 GEN_ERROR("Invalid number of parameters detected");
2654 // Create the InvokeInst
2655 InvokeInst *II = new InvokeInst(V, Normal, Except, Args.begin(), Args.end());
2656 II->setCallingConv($2);
2662 $$ = new UnwindInst();
2666 $$ = new UnreachableInst();
2672 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2674 Constant *V = cast<Constant>(getExistingVal($2, $3));
2677 GEN_ERROR("May only switch on a constant pool value");
2679 BasicBlock* tmpBB = getBBVal($6);
2681 $$->push_back(std::make_pair(V, tmpBB));
2683 | IntType ConstValueRef ',' LABEL ValueRef {
2684 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2685 Constant *V = cast<Constant>(getExistingVal($1, $2));
2689 GEN_ERROR("May only switch on a constant pool value");
2691 BasicBlock* tmpBB = getBBVal($5);
2693 $$->push_back(std::make_pair(V, tmpBB));
2696 Inst : OptLocalAssign InstVal {
2697 // Is this definition named?? if so, assign the name...
2698 setValueName($2, $1);
2706 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2707 if (!UpRefs.empty())
2708 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2709 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2710 Value* tmpVal = getVal(*$1, $3);
2712 BasicBlock* tmpBB = getBBVal($5);
2714 $$->push_back(std::make_pair(tmpVal, tmpBB));
2717 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2719 Value* tmpVal = getVal($1->front().first->getType(), $4);
2721 BasicBlock* tmpBB = getBBVal($6);
2723 $1->push_back(std::make_pair(tmpVal, tmpBB));
2727 ValueRefList : Types ValueRef OptParamAttrs {
2728 if (!UpRefs.empty())
2729 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2730 // Used for call and invoke instructions
2731 $$ = new ValueRefList();
2732 ValueRefListEntry E; E.Attrs = $3; E.Val = getVal($1->get(), $2);
2736 | ValueRefList ',' Types ValueRef OptParamAttrs {
2737 if (!UpRefs.empty())
2738 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2740 ValueRefListEntry E; E.Attrs = $5; E.Val = getVal($3->get(), $4);
2745 | /*empty*/ { $$ = new ValueRefList(); };
2747 IndexList // Used for gep instructions and constant expressions
2748 : /*empty*/ { $$ = new std::vector<Value*>(); }
2749 | IndexList ',' ResolvedVal {
2756 OptTailCall : TAIL CALL {
2765 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
2766 if (!UpRefs.empty())
2767 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2768 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
2769 !isa<VectorType>((*$2).get()))
2771 "Arithmetic operator requires integer, FP, or packed operands");
2772 if (isa<VectorType>((*$2).get()) &&
2773 ($1 == Instruction::URem ||
2774 $1 == Instruction::SRem ||
2775 $1 == Instruction::FRem))
2776 GEN_ERROR("Remainder not supported on vector types");
2777 Value* val1 = getVal(*$2, $3);
2779 Value* val2 = getVal(*$2, $5);
2781 $$ = BinaryOperator::create($1, val1, val2);
2783 GEN_ERROR("binary operator returned null");
2786 | LogicalOps Types ValueRef ',' ValueRef {
2787 if (!UpRefs.empty())
2788 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2789 if (!(*$2)->isInteger()) {
2790 if (Instruction::isShift($1) || !isa<VectorType>($2->get()) ||
2791 !cast<VectorType>($2->get())->getElementType()->isInteger())
2792 GEN_ERROR("Logical operator requires integral operands");
2794 Value* tmpVal1 = getVal(*$2, $3);
2796 Value* tmpVal2 = getVal(*$2, $5);
2798 $$ = BinaryOperator::create($1, tmpVal1, tmpVal2);
2800 GEN_ERROR("binary operator returned null");
2803 | ICMP IPredicates Types ValueRef ',' ValueRef {
2804 if (!UpRefs.empty())
2805 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2806 if (isa<VectorType>((*$3).get()))
2807 GEN_ERROR("Vector types not supported by icmp instruction");
2808 Value* tmpVal1 = getVal(*$3, $4);
2810 Value* tmpVal2 = getVal(*$3, $6);
2812 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2814 GEN_ERROR("icmp operator returned null");
2817 | FCMP FPredicates Types ValueRef ',' ValueRef {
2818 if (!UpRefs.empty())
2819 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2820 if (isa<VectorType>((*$3).get()))
2821 GEN_ERROR("Vector types not supported by fcmp instruction");
2822 Value* tmpVal1 = getVal(*$3, $4);
2824 Value* tmpVal2 = getVal(*$3, $6);
2826 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2828 GEN_ERROR("fcmp operator returned null");
2831 | CastOps ResolvedVal TO Types {
2832 if (!UpRefs.empty())
2833 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2835 const Type* DestTy = $4->get();
2836 if (!CastInst::castIsValid($1, Val, DestTy))
2837 GEN_ERROR("invalid cast opcode for cast from '" +
2838 Val->getType()->getDescription() + "' to '" +
2839 DestTy->getDescription() + "'");
2840 $$ = CastInst::create($1, Val, DestTy);
2843 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2844 if ($2->getType() != Type::Int1Ty)
2845 GEN_ERROR("select condition must be boolean");
2846 if ($4->getType() != $6->getType())
2847 GEN_ERROR("select value types should match");
2848 $$ = new SelectInst($2, $4, $6);
2851 | VAARG ResolvedVal ',' Types {
2852 if (!UpRefs.empty())
2853 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2854 $$ = new VAArgInst($2, *$4);
2858 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
2859 if (!ExtractElementInst::isValidOperands($2, $4))
2860 GEN_ERROR("Invalid extractelement operands");
2861 $$ = new ExtractElementInst($2, $4);
2864 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2865 if (!InsertElementInst::isValidOperands($2, $4, $6))
2866 GEN_ERROR("Invalid insertelement operands");
2867 $$ = new InsertElementInst($2, $4, $6);
2870 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2871 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
2872 GEN_ERROR("Invalid shufflevector operands");
2873 $$ = new ShuffleVectorInst($2, $4, $6);
2877 const Type *Ty = $2->front().first->getType();
2878 if (!Ty->isFirstClassType())
2879 GEN_ERROR("PHI node operands must be of first class type");
2880 $$ = new PHINode(Ty);
2881 ((PHINode*)$$)->reserveOperandSpace($2->size());
2882 while ($2->begin() != $2->end()) {
2883 if ($2->front().first->getType() != Ty)
2884 GEN_ERROR("All elements of a PHI node must be of the same type");
2885 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
2888 delete $2; // Free the list...
2891 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ValueRefList ')'
2894 // Handle the short syntax
2895 const PointerType *PFTy = 0;
2896 const FunctionType *Ty = 0;
2897 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2898 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2899 // Pull out the types of all of the arguments...
2900 std::vector<const Type*> ParamTypes;
2901 ParamAttrsVector Attrs;
2902 if ($8 != ParamAttr::None) {
2903 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2904 Attrs.push_back(PAWI);
2907 ValueRefList::iterator I = $6->begin(), E = $6->end();
2908 for (; I != E; ++I, ++index) {
2909 const Type *Ty = I->Val->getType();
2910 if (Ty == Type::VoidTy)
2911 GEN_ERROR("Short call syntax cannot be used with varargs");
2912 ParamTypes.push_back(Ty);
2913 if (I->Attrs != ParamAttr::None) {
2914 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2915 Attrs.push_back(PAWI);
2919 ParamAttrsList *PAL = 0;
2921 PAL = ParamAttrsList::get(Attrs);
2923 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2924 PFTy = PointerType::get(Ty);
2927 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2930 // Check for call to invalid intrinsic to avoid crashing later.
2931 if (Function *theF = dyn_cast<Function>(V)) {
2932 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
2933 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
2934 !theF->getIntrinsicID(true))
2935 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
2936 theF->getName() + "'");
2939 // Check the arguments
2941 if ($6->empty()) { // Has no arguments?
2942 // Make sure no arguments is a good thing!
2943 if (Ty->getNumParams() != 0)
2944 GEN_ERROR("No arguments passed to a function that "
2945 "expects arguments");
2946 } else { // Has arguments?
2947 // Loop through FunctionType's arguments and ensure they are specified
2950 FunctionType::param_iterator I = Ty->param_begin();
2951 FunctionType::param_iterator E = Ty->param_end();
2952 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2954 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2955 if (ArgI->Val->getType() != *I)
2956 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2957 (*I)->getDescription() + "'");
2958 Args.push_back(ArgI->Val);
2960 if (Ty->isVarArg()) {
2962 for (; ArgI != ArgE; ++ArgI)
2963 Args.push_back(ArgI->Val); // push the remaining varargs
2964 } else if (I != E || ArgI != ArgE)
2965 GEN_ERROR("Invalid number of parameters detected");
2967 // Create the call node
2968 CallInst *CI = new CallInst(V, Args.begin(), Args.end());
2969 CI->setTailCall($1);
2970 CI->setCallingConv($2);
2981 OptVolatile : VOLATILE {
2992 MemoryInst : MALLOC Types OptCAlign {
2993 if (!UpRefs.empty())
2994 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2995 $$ = new MallocInst(*$2, 0, $3);
2999 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
3000 if (!UpRefs.empty())
3001 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3002 Value* tmpVal = getVal($4, $5);
3004 $$ = new MallocInst(*$2, tmpVal, $6);
3007 | ALLOCA Types OptCAlign {
3008 if (!UpRefs.empty())
3009 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3010 $$ = new AllocaInst(*$2, 0, $3);
3014 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
3015 if (!UpRefs.empty())
3016 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3017 Value* tmpVal = getVal($4, $5);
3019 $$ = new AllocaInst(*$2, tmpVal, $6);
3022 | FREE ResolvedVal {
3023 if (!isa<PointerType>($2->getType()))
3024 GEN_ERROR("Trying to free nonpointer type " +
3025 $2->getType()->getDescription() + "");
3026 $$ = new FreeInst($2);
3030 | OptVolatile LOAD Types ValueRef OptCAlign {
3031 if (!UpRefs.empty())
3032 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3033 if (!isa<PointerType>($3->get()))
3034 GEN_ERROR("Can't load from nonpointer type: " +
3035 (*$3)->getDescription());
3036 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3037 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3038 (*$3)->getDescription());
3039 Value* tmpVal = getVal(*$3, $4);
3041 $$ = new LoadInst(tmpVal, "", $1, $5);
3044 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3045 if (!UpRefs.empty())
3046 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3047 const PointerType *PT = dyn_cast<PointerType>($5->get());
3049 GEN_ERROR("Can't store to a nonpointer type: " +
3050 (*$5)->getDescription());
3051 const Type *ElTy = PT->getElementType();
3052 if (ElTy != $3->getType())
3053 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3054 "' into space of type '" + ElTy->getDescription() + "'");
3056 Value* tmpVal = getVal(*$5, $6);
3058 $$ = new StoreInst($3, tmpVal, $1, $7);
3061 | GETELEMENTPTR Types ValueRef IndexList {
3062 if (!UpRefs.empty())
3063 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3064 if (!isa<PointerType>($2->get()))
3065 GEN_ERROR("getelementptr insn requires pointer operand");
3067 if (!GetElementPtrInst::getIndexedType(*$2, &(*$4)[0], $4->size(), true))
3068 GEN_ERROR("Invalid getelementptr indices for type '" +
3069 (*$2)->getDescription()+ "'");
3070 Value* tmpVal = getVal(*$2, $3);
3072 $$ = new GetElementPtrInst(tmpVal, &(*$4)[0], $4->size());
3080 // common code from the two 'RunVMAsmParser' functions
3081 static Module* RunParser(Module * M) {
3083 llvmAsmlineno = 1; // Reset the current line number...
3084 CurModule.CurrentModule = M;
3089 // Check to make sure the parser succeeded
3092 delete ParserResult;
3096 // Emit an error if there are any unresolved types left.
3097 if (!CurModule.LateResolveTypes.empty()) {
3098 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3099 if (DID.Type == ValID::LocalName) {
3100 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3102 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3105 delete ParserResult;
3109 // Emit an error if there are any unresolved values left.
3110 if (!CurModule.LateResolveValues.empty()) {
3111 Value *V = CurModule.LateResolveValues.back();
3112 std::map<Value*, std::pair<ValID, int> >::iterator I =
3113 CurModule.PlaceHolderInfo.find(V);
3115 if (I != CurModule.PlaceHolderInfo.end()) {
3116 ValID &DID = I->second.first;
3117 if (DID.Type == ValID::LocalName) {
3118 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3120 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3123 delete ParserResult;
3128 // Check to make sure that parsing produced a result
3132 // Reset ParserResult variable while saving its value for the result.
3133 Module *Result = ParserResult;
3139 void llvm::GenerateError(const std::string &message, int LineNo) {
3140 if (LineNo == -1) LineNo = llvmAsmlineno;
3141 // TODO: column number in exception
3143 TheParseError->setError(CurFilename, message, LineNo);
3147 int yyerror(const char *ErrorMsg) {
3149 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3150 + ":" + utostr((unsigned) llvmAsmlineno) + ": ";
3151 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3152 if (yychar != YYEMPTY && yychar != 0)
3153 errMsg += " while reading token: '" + std::string(llvmAsmtext, llvmAsmleng)+
3155 GenerateError(errMsg);