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/Support/GetElementPtrTypeIterator.h"
22 #include "llvm/Support/CommandLine.h"
23 #include "llvm/ADT/SmallVector.h"
24 #include "llvm/ADT/STLExtras.h"
25 #include "llvm/Support/MathExtras.h"
26 #include "llvm/Support/Streams.h"
35 // The following is a gross hack. In order to rid the libAsmParser library of
36 // exceptions, we have to have a way of getting the yyparse function to go into
37 // an error situation. So, whenever we want an error to occur, the GenerateError
38 // function (see bottom of file) sets TriggerError. Then, at the end of each
39 // production in the grammer we use CHECK_FOR_ERROR which will invoke YYERROR
40 // (a goto) to put YACC in error state. Furthermore, several calls to
41 // GenerateError are made from inside productions and they must simulate the
42 // previous exception behavior by exiting the production immediately. We have
43 // replaced these with the GEN_ERROR macro which calls GeneratError and then
44 // immediately invokes YYERROR. This would be so much cleaner if it was a
45 // recursive descent parser.
46 static bool TriggerError = false;
47 #define CHECK_FOR_ERROR { if (TriggerError) { TriggerError = false; YYABORT; } }
48 #define GEN_ERROR(msg) { GenerateError(msg); YYERROR; }
50 int yyerror(const char *ErrorMsg); // Forward declarations to prevent "implicit
51 int yylex(); // declaration" of xxx warnings.
55 std::string CurFilename;
58 Debug("debug-yacc", cl::desc("Print yacc debug state changes"),
59 cl::Hidden, cl::init(false));
64 static Module *ParserResult;
66 // DEBUG_UPREFS - Define this symbol if you want to enable debugging output
67 // relating to upreferences in the input stream.
69 //#define DEBUG_UPREFS 1
71 #define UR_OUT(X) cerr << X
76 #define YYERROR_VERBOSE 1
78 static GlobalVariable *CurGV;
81 // This contains info used when building the body of a function. It is
82 // destroyed when the function is completed.
84 typedef std::vector<Value *> ValueList; // Numbered defs
87 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers=0);
89 static struct PerModuleInfo {
90 Module *CurrentModule;
91 ValueList Values; // Module level numbered definitions
92 ValueList LateResolveValues;
93 std::vector<PATypeHolder> Types;
94 std::map<ValID, PATypeHolder> LateResolveTypes;
96 /// PlaceHolderInfo - When temporary placeholder objects are created, remember
97 /// how they were referenced and on which line of the input they came from so
98 /// that we can resolve them later and print error messages as appropriate.
99 std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
101 // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
102 // references to global values. Global values may be referenced before they
103 // are defined, and if so, the temporary object that they represent is held
104 // here. This is used for forward references of GlobalValues.
106 typedef std::map<std::pair<const PointerType *,
107 ValID>, GlobalValue*> GlobalRefsType;
108 GlobalRefsType GlobalRefs;
111 // If we could not resolve some functions at function compilation time
112 // (calls to functions before they are defined), resolve them now... Types
113 // are resolved when the constant pool has been completely parsed.
115 ResolveDefinitions(LateResolveValues);
119 // Check to make sure that all global value forward references have been
122 if (!GlobalRefs.empty()) {
123 std::string UndefinedReferences = "Unresolved global references exist:\n";
125 for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
127 UndefinedReferences += " " + I->first.first->getDescription() + " " +
128 I->first.second.getName() + "\n";
130 GenerateError(UndefinedReferences);
134 Values.clear(); // Clear out function local definitions
139 // GetForwardRefForGlobal - Check to see if there is a forward reference
140 // for this global. If so, remove it from the GlobalRefs map and return it.
141 // If not, just return null.
142 GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
143 // Check to see if there is a forward reference to this global variable...
144 // if there is, eliminate it and patch the reference to use the new def'n.
145 GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
146 GlobalValue *Ret = 0;
147 if (I != GlobalRefs.end()) {
154 bool TypeIsUnresolved(PATypeHolder* PATy) {
155 // If it isn't abstract, its resolved
156 const Type* Ty = PATy->get();
157 if (!Ty->isAbstract())
159 // Traverse the type looking for abstract types. If it isn't abstract then
160 // we don't need to traverse that leg of the type.
161 std::vector<const Type*> WorkList, SeenList;
162 WorkList.push_back(Ty);
163 while (!WorkList.empty()) {
164 const Type* Ty = WorkList.back();
165 SeenList.push_back(Ty);
167 if (const OpaqueType* OpTy = dyn_cast<OpaqueType>(Ty)) {
168 // Check to see if this is an unresolved type
169 std::map<ValID, PATypeHolder>::iterator I = LateResolveTypes.begin();
170 std::map<ValID, PATypeHolder>::iterator E = LateResolveTypes.end();
171 for ( ; I != E; ++I) {
172 if (I->second.get() == OpTy)
175 } else if (const SequentialType* SeqTy = dyn_cast<SequentialType>(Ty)) {
176 const Type* TheTy = SeqTy->getElementType();
177 if (TheTy->isAbstract() && TheTy != Ty) {
178 std::vector<const Type*>::iterator I = SeenList.begin(),
184 WorkList.push_back(TheTy);
186 } else if (const StructType* StrTy = dyn_cast<StructType>(Ty)) {
187 for (unsigned i = 0; i < StrTy->getNumElements(); ++i) {
188 const Type* TheTy = StrTy->getElementType(i);
189 if (TheTy->isAbstract() && TheTy != Ty) {
190 std::vector<const Type*>::iterator I = SeenList.begin(),
196 WorkList.push_back(TheTy);
207 static struct PerFunctionInfo {
208 Function *CurrentFunction; // Pointer to current function being created
210 ValueList Values; // Keep track of #'d definitions
212 ValueList LateResolveValues;
213 bool isDeclare; // Is this function a forward declararation?
214 GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
215 GlobalValue::VisibilityTypes Visibility;
217 /// BBForwardRefs - When we see forward references to basic blocks, keep
218 /// track of them here.
219 std::map<ValID, BasicBlock*> BBForwardRefs;
221 inline PerFunctionInfo() {
224 Linkage = GlobalValue::ExternalLinkage;
225 Visibility = GlobalValue::DefaultVisibility;
228 inline void FunctionStart(Function *M) {
233 void FunctionDone() {
234 // Any forward referenced blocks left?
235 if (!BBForwardRefs.empty()) {
236 GenerateError("Undefined reference to label " +
237 BBForwardRefs.begin()->second->getName());
241 // Resolve all forward references now.
242 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
244 Values.clear(); // Clear out function local definitions
245 BBForwardRefs.clear();
248 Linkage = GlobalValue::ExternalLinkage;
249 Visibility = GlobalValue::DefaultVisibility;
251 } CurFun; // Info for the current function...
253 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
256 //===----------------------------------------------------------------------===//
257 // Code to handle definitions of all the types
258 //===----------------------------------------------------------------------===//
260 static void InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
261 // Things that have names or are void typed don't get slot numbers
262 if (V->hasName() || (V->getType() == Type::VoidTy))
265 // In the case of function values, we have to allow for the forward reference
266 // of basic blocks, which are included in the numbering. Consequently, we keep
267 // track of the next insertion location with NextValNum. When a BB gets
268 // inserted, it could change the size of the CurFun.Values vector.
269 if (&ValueTab == &CurFun.Values) {
270 if (ValueTab.size() <= CurFun.NextValNum)
271 ValueTab.resize(CurFun.NextValNum+1);
272 ValueTab[CurFun.NextValNum++] = V;
275 // For all other lists, its okay to just tack it on the back of the vector.
276 ValueTab.push_back(V);
279 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
281 case ValID::LocalID: // Is it a numbered definition?
282 // Module constants occupy the lowest numbered slots...
283 if (D.Num < CurModule.Types.size())
284 return CurModule.Types[D.Num];
286 case ValID::LocalName: // Is it a named definition?
287 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
288 D.destroy(); // Free old strdup'd memory...
293 GenerateError("Internal parser error: Invalid symbol type reference");
297 // If we reached here, we referenced either a symbol that we don't know about
298 // or an id number that hasn't been read yet. We may be referencing something
299 // forward, so just create an entry to be resolved later and get to it...
301 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
304 if (inFunctionScope()) {
305 if (D.Type == ValID::LocalName) {
306 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
309 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
314 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
315 if (I != CurModule.LateResolveTypes.end())
318 Type *Typ = OpaqueType::get();
319 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
323 // getExistingVal - Look up the value specified by the provided type and
324 // the provided ValID. If the value exists and has already been defined, return
325 // it. Otherwise return null.
327 static Value *getExistingVal(const Type *Ty, const ValID &D) {
328 if (isa<FunctionType>(Ty)) {
329 GenerateError("Functions are not values and "
330 "must be referenced as pointers");
335 case ValID::LocalID: { // Is it a numbered definition?
336 // Check that the number is within bounds.
337 if (D.Num >= CurFun.Values.size())
339 Value *Result = CurFun.Values[D.Num];
340 if (Ty != Result->getType()) {
341 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
342 Result->getType()->getDescription() + "' does not match "
343 "expected type, '" + Ty->getDescription() + "'");
348 case ValID::GlobalID: { // Is it a numbered definition?
349 if (D.Num >= CurModule.Values.size())
351 Value *Result = CurModule.Values[D.Num];
352 if (Ty != Result->getType()) {
353 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
354 Result->getType()->getDescription() + "' does not match "
355 "expected type, '" + Ty->getDescription() + "'");
361 case ValID::LocalName: { // Is it a named definition?
362 if (!inFunctionScope())
364 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
365 Value *N = SymTab.lookup(D.Name);
368 if (N->getType() != Ty)
371 D.destroy(); // Free old strdup'd memory...
374 case ValID::GlobalName: { // Is it a named definition?
375 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
376 Value *N = SymTab.lookup(D.Name);
379 if (N->getType() != Ty)
382 D.destroy(); // Free old strdup'd memory...
386 // Check to make sure that "Ty" is an integral type, and that our
387 // value will fit into the specified type...
388 case ValID::ConstSIntVal: // Is it a constant pool reference??
389 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
390 GenerateError("Signed integral constant '" +
391 itostr(D.ConstPool64) + "' is invalid for type '" +
392 Ty->getDescription() + "'");
395 return ConstantInt::get(Ty, D.ConstPool64);
397 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
398 if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
399 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
400 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
401 "' is invalid or out of range");
403 } else { // This is really a signed reference. Transmogrify.
404 return ConstantInt::get(Ty, D.ConstPool64);
407 return ConstantInt::get(Ty, D.UConstPool64);
410 case ValID::ConstFPVal: // Is it a floating point const pool reference?
411 if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP)) {
412 GenerateError("FP constant invalid for type");
415 return ConstantFP::get(Ty, D.ConstPoolFP);
417 case ValID::ConstNullVal: // Is it a null value?
418 if (!isa<PointerType>(Ty)) {
419 GenerateError("Cannot create a a non pointer null");
422 return ConstantPointerNull::get(cast<PointerType>(Ty));
424 case ValID::ConstUndefVal: // Is it an undef value?
425 return UndefValue::get(Ty);
427 case ValID::ConstZeroVal: // Is it a zero value?
428 return Constant::getNullValue(Ty);
430 case ValID::ConstantVal: // Fully resolved constant?
431 if (D.ConstantValue->getType() != Ty) {
432 GenerateError("Constant expression type different from required type");
435 return D.ConstantValue;
437 case ValID::InlineAsmVal: { // Inline asm expression
438 const PointerType *PTy = dyn_cast<PointerType>(Ty);
439 const FunctionType *FTy =
440 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
441 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
442 GenerateError("Invalid type for asm constraint string");
445 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
446 D.IAD->HasSideEffects);
447 D.destroy(); // Free InlineAsmDescriptor.
451 assert(0 && "Unhandled case!");
455 assert(0 && "Unhandled case!");
459 // getVal - This function is identical to getExistingVal, except that if a
460 // value is not already defined, it "improvises" by creating a placeholder var
461 // that looks and acts just like the requested variable. When the value is
462 // defined later, all uses of the placeholder variable are replaced with the
465 static Value *getVal(const Type *Ty, const ValID &ID) {
466 if (Ty == Type::LabelTy) {
467 GenerateError("Cannot use a basic block here");
471 // See if the value has already been defined.
472 Value *V = getExistingVal(Ty, ID);
474 if (TriggerError) return 0;
476 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
477 GenerateError("Invalid use of a composite type");
481 // If we reached here, we referenced either a symbol that we don't know about
482 // or an id number that hasn't been read yet. We may be referencing something
483 // forward, so just create an entry to be resolved later and get to it...
485 V = new Argument(Ty);
487 // Remember where this forward reference came from. FIXME, shouldn't we try
488 // to recycle these things??
489 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
492 if (inFunctionScope())
493 InsertValue(V, CurFun.LateResolveValues);
495 InsertValue(V, CurModule.LateResolveValues);
499 /// defineBBVal - This is a definition of a new basic block with the specified
500 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
501 static BasicBlock *defineBBVal(const ValID &ID) {
502 assert(inFunctionScope() && "Can't get basic block at global scope!");
506 // First, see if this was forward referenced
508 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
509 if (BBI != CurFun.BBForwardRefs.end()) {
511 // The forward declaration could have been inserted anywhere in the
512 // function: insert it into the correct place now.
513 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
514 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
516 // Erase the forward ref from the map as its no longer "forward"
517 CurFun.BBForwardRefs.erase(ID);
519 // If its a numbered definition, bump the number and set the BB value.
520 if (ID.Type == ValID::LocalID) {
521 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
529 // We haven't seen this BB before and its first mention is a definition.
530 // Just create it and return it.
531 std::string Name (ID.Type == ValID::LocalName ? ID.Name : "");
532 BB = new BasicBlock(Name, CurFun.CurrentFunction);
533 if (ID.Type == ValID::LocalID) {
534 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
538 ID.destroy(); // Free strdup'd memory
542 /// getBBVal - get an existing BB value or create a forward reference for it.
544 static BasicBlock *getBBVal(const ValID &ID) {
545 assert(inFunctionScope() && "Can't get basic block at global scope!");
549 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
550 if (BBI != CurFun.BBForwardRefs.end()) {
552 } if (ID.Type == ValID::LocalName) {
553 std::string Name = ID.Name;
554 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
556 if (N->getType()->getTypeID() == Type::LabelTyID)
557 BB = cast<BasicBlock>(N);
559 GenerateError("Reference to label '" + Name + "' is actually of type '"+
560 N->getType()->getDescription() + "'");
561 } else if (ID.Type == ValID::LocalID) {
562 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
563 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
564 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
566 GenerateError("Reference to label '%" + utostr(ID.Num) +
567 "' is actually of type '"+
568 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
571 GenerateError("Illegal label reference " + ID.getName());
575 // If its already been defined, return it now.
577 ID.destroy(); // Free strdup'd memory.
581 // Otherwise, this block has not been seen before, create it.
583 if (ID.Type == ValID::LocalName)
585 BB = new BasicBlock(Name, CurFun.CurrentFunction);
587 // Insert it in the forward refs map.
588 CurFun.BBForwardRefs[ID] = BB;
594 //===----------------------------------------------------------------------===//
595 // Code to handle forward references in instructions
596 //===----------------------------------------------------------------------===//
598 // This code handles the late binding needed with statements that reference
599 // values not defined yet... for example, a forward branch, or the PHI node for
602 // This keeps a table (CurFun.LateResolveValues) of all such forward references
603 // and back patchs after we are done.
606 // ResolveDefinitions - If we could not resolve some defs at parsing
607 // time (forward branches, phi functions for loops, etc...) resolve the
611 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
612 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
613 while (!LateResolvers.empty()) {
614 Value *V = LateResolvers.back();
615 LateResolvers.pop_back();
617 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
618 CurModule.PlaceHolderInfo.find(V);
619 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
621 ValID &DID = PHI->second.first;
623 Value *TheRealValue = getExistingVal(V->getType(), DID);
627 V->replaceAllUsesWith(TheRealValue);
629 CurModule.PlaceHolderInfo.erase(PHI);
630 } else if (FutureLateResolvers) {
631 // Functions have their unresolved items forwarded to the module late
633 InsertValue(V, *FutureLateResolvers);
635 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
636 GenerateError("Reference to an invalid definition: '" +DID.getName()+
637 "' of type '" + V->getType()->getDescription() + "'",
641 GenerateError("Reference to an invalid definition: #" +
642 itostr(DID.Num) + " of type '" +
643 V->getType()->getDescription() + "'",
649 LateResolvers.clear();
652 // ResolveTypeTo - A brand new type was just declared. This means that (if
653 // name is not null) things referencing Name can be resolved. Otherwise, things
654 // refering to the number can be resolved. Do this now.
656 static void ResolveTypeTo(char *Name, const Type *ToTy) {
658 if (Name) D = ValID::createLocalName(Name);
659 else D = ValID::createLocalID(CurModule.Types.size());
661 std::map<ValID, PATypeHolder>::iterator I =
662 CurModule.LateResolveTypes.find(D);
663 if (I != CurModule.LateResolveTypes.end()) {
664 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
665 CurModule.LateResolveTypes.erase(I);
669 // setValueName - Set the specified value to the name given. The name may be
670 // null potentially, in which case this is a noop. The string passed in is
671 // assumed to be a malloc'd string buffer, and is free'd by this function.
673 static void setValueName(Value *V, char *NameStr) {
674 if (!NameStr) return;
675 std::string Name(NameStr); // Copy string
676 free(NameStr); // Free old string
678 if (V->getType() == Type::VoidTy) {
679 GenerateError("Can't assign name '" + Name+"' to value with void type");
683 assert(inFunctionScope() && "Must be in function scope!");
684 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
685 if (ST.lookup(Name)) {
686 GenerateError("Redefinition of value '" + Name + "' of type '" +
687 V->getType()->getDescription() + "'");
695 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
696 /// this is a declaration, otherwise it is a definition.
697 static GlobalVariable *
698 ParseGlobalVariable(char *NameStr,
699 GlobalValue::LinkageTypes Linkage,
700 GlobalValue::VisibilityTypes Visibility,
701 bool isConstantGlobal, const Type *Ty,
702 Constant *Initializer) {
703 if (isa<FunctionType>(Ty)) {
704 GenerateError("Cannot declare global vars of function type");
708 const PointerType *PTy = PointerType::get(Ty);
712 Name = NameStr; // Copy string
713 free(NameStr); // Free old string
716 // See if this global value was forward referenced. If so, recycle the
720 ID = ValID::createGlobalName((char*)Name.c_str());
722 ID = ValID::createGlobalID(CurModule.Values.size());
725 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
726 // Move the global to the end of the list, from whereever it was
727 // previously inserted.
728 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
729 CurModule.CurrentModule->getGlobalList().remove(GV);
730 CurModule.CurrentModule->getGlobalList().push_back(GV);
731 GV->setInitializer(Initializer);
732 GV->setLinkage(Linkage);
733 GV->setVisibility(Visibility);
734 GV->setConstant(isConstantGlobal);
735 InsertValue(GV, CurModule.Values);
739 // If this global has a name
741 // if the global we're parsing has an initializer (is a definition) and
742 // has external linkage.
743 if (Initializer && Linkage != GlobalValue::InternalLinkage)
744 // If there is already a global with external linkage with this name
745 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
746 // If we allow this GVar to get created, it will be renamed in the
747 // symbol table because it conflicts with an existing GVar. We can't
748 // allow redefinition of GVars whose linking indicates that their name
749 // must stay the same. Issue the error.
750 GenerateError("Redefinition of global variable named '" + Name +
751 "' of type '" + Ty->getDescription() + "'");
756 // Otherwise there is no existing GV to use, create one now.
758 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
759 CurModule.CurrentModule);
760 GV->setVisibility(Visibility);
761 InsertValue(GV, CurModule.Values);
765 // setTypeName - Set the specified type to the name given. The name may be
766 // null potentially, in which case this is a noop. The string passed in is
767 // assumed to be a malloc'd string buffer, and is freed by this function.
769 // This function returns true if the type has already been defined, but is
770 // allowed to be redefined in the specified context. If the name is a new name
771 // for the type plane, it is inserted and false is returned.
772 static bool setTypeName(const Type *T, char *NameStr) {
773 assert(!inFunctionScope() && "Can't give types function-local names!");
774 if (NameStr == 0) return false;
776 std::string Name(NameStr); // Copy string
777 free(NameStr); // Free old string
779 // We don't allow assigning names to void type
780 if (T == Type::VoidTy) {
781 GenerateError("Can't assign name '" + Name + "' to the void type");
785 // Set the type name, checking for conflicts as we do so.
786 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
788 if (AlreadyExists) { // Inserting a name that is already defined???
789 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
790 assert(Existing && "Conflict but no matching type?!");
792 // There is only one case where this is allowed: when we are refining an
793 // opaque type. In this case, Existing will be an opaque type.
794 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
795 // We ARE replacing an opaque type!
796 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
800 // Otherwise, this is an attempt to redefine a type. That's okay if
801 // the redefinition is identical to the original. This will be so if
802 // Existing and T point to the same Type object. In this one case we
803 // allow the equivalent redefinition.
804 if (Existing == T) return true; // Yes, it's equal.
806 // Any other kind of (non-equivalent) redefinition is an error.
807 GenerateError("Redefinition of type named '" + Name + "' of type '" +
808 T->getDescription() + "'");
814 //===----------------------------------------------------------------------===//
815 // Code for handling upreferences in type names...
818 // TypeContains - Returns true if Ty directly contains E in it.
820 static bool TypeContains(const Type *Ty, const Type *E) {
821 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
822 E) != Ty->subtype_end();
827 // NestingLevel - The number of nesting levels that need to be popped before
828 // this type is resolved.
829 unsigned NestingLevel;
831 // LastContainedTy - This is the type at the current binding level for the
832 // type. Every time we reduce the nesting level, this gets updated.
833 const Type *LastContainedTy;
835 // UpRefTy - This is the actual opaque type that the upreference is
839 UpRefRecord(unsigned NL, OpaqueType *URTy)
840 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
844 // UpRefs - A list of the outstanding upreferences that need to be resolved.
845 static std::vector<UpRefRecord> UpRefs;
847 /// HandleUpRefs - Every time we finish a new layer of types, this function is
848 /// called. It loops through the UpRefs vector, which is a list of the
849 /// currently active types. For each type, if the up reference is contained in
850 /// the newly completed type, we decrement the level count. When the level
851 /// count reaches zero, the upreferenced type is the type that is passed in:
852 /// thus we can complete the cycle.
854 static PATypeHolder HandleUpRefs(const Type *ty) {
855 // If Ty isn't abstract, or if there are no up-references in it, then there is
856 // nothing to resolve here.
857 if (!ty->isAbstract() || UpRefs.empty()) return ty;
860 UR_OUT("Type '" << Ty->getDescription() <<
861 "' newly formed. Resolving upreferences.\n" <<
862 UpRefs.size() << " upreferences active!\n");
864 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
865 // to zero), we resolve them all together before we resolve them to Ty. At
866 // the end of the loop, if there is anything to resolve to Ty, it will be in
868 OpaqueType *TypeToResolve = 0;
870 for (unsigned i = 0; i != UpRefs.size(); ++i) {
871 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
872 << UpRefs[i].second->getDescription() << ") = "
873 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
874 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
875 // Decrement level of upreference
876 unsigned Level = --UpRefs[i].NestingLevel;
877 UpRefs[i].LastContainedTy = Ty;
878 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
879 if (Level == 0) { // Upreference should be resolved!
880 if (!TypeToResolve) {
881 TypeToResolve = UpRefs[i].UpRefTy;
883 UR_OUT(" * Resolving upreference for "
884 << UpRefs[i].second->getDescription() << "\n";
885 std::string OldName = UpRefs[i].UpRefTy->getDescription());
886 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
887 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
888 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
890 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
891 --i; // Do not skip the next element...
897 UR_OUT(" * Resolving upreference for "
898 << UpRefs[i].second->getDescription() << "\n";
899 std::string OldName = TypeToResolve->getDescription());
900 TypeToResolve->refineAbstractTypeTo(Ty);
906 //===----------------------------------------------------------------------===//
907 // RunVMAsmParser - Define an interface to this parser
908 //===----------------------------------------------------------------------===//
910 static Module* RunParser(Module * M);
912 Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
915 CurFilename = Filename;
916 return RunParser(new Module(CurFilename));
919 Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
920 set_scan_string(AsmString);
922 CurFilename = "from_memory";
924 return RunParser(new Module (CurFilename));
933 llvm::Module *ModuleVal;
934 llvm::Function *FunctionVal;
935 llvm::BasicBlock *BasicBlockVal;
936 llvm::TerminatorInst *TermInstVal;
937 llvm::Instruction *InstVal;
938 llvm::Constant *ConstVal;
940 const llvm::Type *PrimType;
941 std::list<llvm::PATypeHolder> *TypeList;
942 llvm::PATypeHolder *TypeVal;
943 llvm::Value *ValueVal;
944 std::vector<llvm::Value*> *ValueList;
945 llvm::ArgListType *ArgList;
946 llvm::TypeWithAttrs TypeWithAttrs;
947 llvm::TypeWithAttrsList *TypeWithAttrsList;
948 llvm::ValueRefList *ValueRefList;
950 // Represent the RHS of PHI node
951 std::list<std::pair<llvm::Value*,
952 llvm::BasicBlock*> > *PHIList;
953 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
954 std::vector<llvm::Constant*> *ConstVector;
956 llvm::GlobalValue::LinkageTypes Linkage;
957 llvm::GlobalValue::VisibilityTypes Visibility;
958 llvm::FunctionType::ParameterAttributes ParamAttrs;
959 llvm::APInt *APIntVal;
967 char *StrVal; // This memory is strdup'd!
968 llvm::ValID ValIDVal; // strdup'd memory maybe!
970 llvm::Instruction::BinaryOps BinaryOpVal;
971 llvm::Instruction::TermOps TermOpVal;
972 llvm::Instruction::MemoryOps MemOpVal;
973 llvm::Instruction::CastOps CastOpVal;
974 llvm::Instruction::OtherOps OtherOpVal;
975 llvm::ICmpInst::Predicate IPredicate;
976 llvm::FCmpInst::Predicate FPredicate;
979 %type <ModuleVal> Module
980 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
981 %type <BasicBlockVal> BasicBlock InstructionList
982 %type <TermInstVal> BBTerminatorInst
983 %type <InstVal> Inst InstVal MemoryInst
984 %type <ConstVal> ConstVal ConstExpr
985 %type <ConstVector> ConstVector
986 %type <ArgList> ArgList ArgListH
987 %type <PHIList> PHIList
988 %type <ValueRefList> ValueRefList // For call param lists & GEP indices
989 %type <ValueList> IndexList // For GEP indices
990 %type <TypeList> TypeListI
991 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
992 %type <TypeWithAttrs> ArgType
993 %type <JumpTable> JumpTable
994 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
995 %type <BoolVal> OptVolatile // 'volatile' or not
996 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
997 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
998 %type <Linkage> GVInternalLinkage GVExternalLinkage
999 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1000 %type <Visibility> GVVisibilityStyle
1002 // ValueRef - Unresolved reference to a definition or BB
1003 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1004 %type <ValueVal> ResolvedVal // <type> <valref> pair
1005 // Tokens and types for handling constant integer values
1007 // ESINT64VAL - A negative number within long long range
1008 %token <SInt64Val> ESINT64VAL
1010 // EUINT64VAL - A positive number within uns. long long range
1011 %token <UInt64Val> EUINT64VAL
1013 // ESAPINTVAL - A negative number with arbitrary precision
1014 %token <APIntVal> ESAPINTVAL
1016 // EUAPINTVAL - A positive number with arbitrary precision
1017 %token <APIntVal> EUAPINTVAL
1019 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1020 %token <FPVal> FPVAL // Float or Double constant
1022 // Built in types...
1023 %type <TypeVal> Types ResultTypes
1024 %type <PrimType> IntType FPType PrimType // Classifications
1025 %token <PrimType> VOID INTTYPE
1026 %token <PrimType> FLOAT DOUBLE LABEL
1029 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR STRINGCONSTANT ATSTRINGCONSTANT
1030 %type <StrVal> LocalName OptLocalName OptLocalAssign
1031 %type <StrVal> GlobalName OptGlobalAssign
1032 %type <UIntVal> OptAlign OptCAlign
1033 %type <StrVal> OptSection SectionString
1035 %token IMPLEMENTATION ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1036 %token DECLARE DEFINE GLOBAL CONSTANT SECTION VOLATILE
1037 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1038 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1039 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN
1040 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1041 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1043 %type <UIntVal> OptCallingConv
1044 %type <ParamAttrs> OptParamAttrs ParamAttr
1045 %type <ParamAttrs> OptFuncAttrs FuncAttr
1047 // Basic Block Terminating Operators
1048 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1051 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1052 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1053 %token <BinaryOpVal> SHL LSHR ASHR
1055 %token <OtherOpVal> ICMP FCMP
1056 %type <IPredicate> IPredicates
1057 %type <FPredicate> FPredicates
1058 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1059 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1061 // Memory Instructions
1062 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1065 %type <CastOpVal> CastOps
1066 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1067 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1070 %token <OtherOpVal> PHI_TOK SELECT VAARG
1071 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1073 // Function Attributes
1074 %token NORETURN INREG SRET
1076 // Visibility Styles
1077 %token DEFAULT HIDDEN
1083 // Operations that are notably excluded from this list include:
1084 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1086 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1087 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1088 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1089 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1092 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1093 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1094 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1095 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1096 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1100 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1101 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1102 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1103 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1104 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1105 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1106 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1107 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1108 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1111 // These are some types that allow classification if we only want a particular
1112 // thing... for example, only a signed, unsigned, or integral type.
1114 FPType : FLOAT | DOUBLE;
1116 LocalName : LOCALVAR | STRINGCONSTANT;
1117 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1119 /// OptLocalAssign - Value producing statements have an optional assignment
1121 OptLocalAssign : LocalName '=' {
1130 GlobalName : GLOBALVAR | ATSTRINGCONSTANT;
1132 OptGlobalAssign : GlobalName '=' {
1142 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1143 | WEAK { $$ = GlobalValue::WeakLinkage; }
1144 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1145 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1146 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1150 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1151 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1152 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1156 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1157 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1160 FunctionDeclareLinkage
1161 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1162 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1163 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1166 FunctionDefineLinkage
1167 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1168 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1169 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1170 | WEAK { $$ = GlobalValue::WeakLinkage; }
1171 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1174 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1175 CCC_TOK { $$ = CallingConv::C; } |
1176 FASTCC_TOK { $$ = CallingConv::Fast; } |
1177 COLDCC_TOK { $$ = CallingConv::Cold; } |
1178 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1179 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1181 if ((unsigned)$2 != $2)
1182 GEN_ERROR("Calling conv too large");
1187 ParamAttr : ZEXT { $$ = FunctionType::ZExtAttribute; }
1188 | SEXT { $$ = FunctionType::SExtAttribute; }
1189 | INREG { $$ = FunctionType::InRegAttribute; }
1190 | SRET { $$ = FunctionType::StructRetAttribute; }
1193 OptParamAttrs : /* empty */ { $$ = FunctionType::NoAttributeSet; }
1194 | OptParamAttrs ParamAttr {
1195 $$ = FunctionType::ParameterAttributes($1 | $2);
1199 FuncAttr : NORETURN { $$ = FunctionType::NoReturnAttribute; }
1203 OptFuncAttrs : /* empty */ { $$ = FunctionType::NoAttributeSet; }
1204 | OptFuncAttrs FuncAttr {
1205 $$ = FunctionType::ParameterAttributes($1 | $2);
1209 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1210 // a comma before it.
1211 OptAlign : /*empty*/ { $$ = 0; } |
1214 if ($$ != 0 && !isPowerOf2_32($$))
1215 GEN_ERROR("Alignment must be a power of two");
1218 OptCAlign : /*empty*/ { $$ = 0; } |
1219 ',' ALIGN EUINT64VAL {
1221 if ($$ != 0 && !isPowerOf2_32($$))
1222 GEN_ERROR("Alignment must be a power of two");
1227 SectionString : SECTION STRINGCONSTANT {
1228 for (unsigned i = 0, e = strlen($2); i != e; ++i)
1229 if ($2[i] == '"' || $2[i] == '\\')
1230 GEN_ERROR("Invalid character in section name");
1235 OptSection : /*empty*/ { $$ = 0; } |
1236 SectionString { $$ = $1; };
1238 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1239 // is set to be the global we are processing.
1241 GlobalVarAttributes : /* empty */ {} |
1242 ',' GlobalVarAttribute GlobalVarAttributes {};
1243 GlobalVarAttribute : SectionString {
1244 CurGV->setSection($1);
1248 | ALIGN EUINT64VAL {
1249 if ($2 != 0 && !isPowerOf2_32($2))
1250 GEN_ERROR("Alignment must be a power of two");
1251 CurGV->setAlignment($2);
1255 //===----------------------------------------------------------------------===//
1256 // Types includes all predefined types... except void, because it can only be
1257 // used in specific contexts (function returning void for example).
1259 // Derived types are added later...
1261 PrimType : INTTYPE | FLOAT | DOUBLE | LABEL ;
1265 $$ = new PATypeHolder(OpaqueType::get());
1269 $$ = new PATypeHolder($1);
1272 | Types '*' { // Pointer type?
1273 if (*$1 == Type::LabelTy)
1274 GEN_ERROR("Cannot form a pointer to a basic block");
1275 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1)));
1279 | SymbolicValueRef { // Named types are also simple types...
1280 const Type* tmp = getTypeVal($1);
1282 $$ = new PATypeHolder(tmp);
1284 | '\\' EUINT64VAL { // Type UpReference
1285 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1286 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1287 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1288 $$ = new PATypeHolder(OT);
1289 UR_OUT("New Upreference!\n");
1292 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1293 std::vector<const Type*> Params;
1294 std::vector<FunctionType::ParameterAttributes> Attrs;
1295 Attrs.push_back($5);
1296 for (TypeWithAttrsList::iterator I=$3->begin(), E=$3->end(); I != E; ++I) {
1297 Params.push_back(I->Ty->get());
1298 if (I->Ty->get() != Type::VoidTy)
1299 Attrs.push_back(I->Attrs);
1301 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1302 if (isVarArg) Params.pop_back();
1304 FunctionType *FT = FunctionType::get(*$1, Params, isVarArg, Attrs);
1305 delete $3; // Delete the argument list
1306 delete $1; // Delete the return type handle
1307 $$ = new PATypeHolder(HandleUpRefs(FT));
1310 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1311 std::vector<const Type*> Params;
1312 std::vector<FunctionType::ParameterAttributes> Attrs;
1313 Attrs.push_back($5);
1314 for (TypeWithAttrsList::iterator I=$3->begin(), E=$3->end(); I != E; ++I) {
1315 Params.push_back(I->Ty->get());
1316 if (I->Ty->get() != Type::VoidTy)
1317 Attrs.push_back(I->Attrs);
1319 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1320 if (isVarArg) Params.pop_back();
1322 FunctionType *FT = FunctionType::get($1, Params, isVarArg, Attrs);
1323 delete $3; // Delete the argument list
1324 $$ = new PATypeHolder(HandleUpRefs(FT));
1328 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1329 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
1333 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1334 const llvm::Type* ElemTy = $4->get();
1335 if ((unsigned)$2 != $2)
1336 GEN_ERROR("Unsigned result not equal to signed result");
1337 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1338 GEN_ERROR("Element type of a VectorType must be primitive");
1339 if (!isPowerOf2_32($2))
1340 GEN_ERROR("Vector length should be a power of 2");
1341 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1345 | '{' TypeListI '}' { // Structure type?
1346 std::vector<const Type*> Elements;
1347 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1348 E = $2->end(); I != E; ++I)
1349 Elements.push_back(*I);
1351 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1355 | '{' '}' { // Empty structure type?
1356 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1359 | '<' '{' TypeListI '}' '>' {
1360 std::vector<const Type*> Elements;
1361 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1362 E = $3->end(); I != E; ++I)
1363 Elements.push_back(*I);
1365 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1369 | '<' '{' '}' '>' { // Empty structure type?
1370 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1376 : Types OptParamAttrs {
1384 if (!UpRefs.empty())
1385 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1386 if (!(*$1)->isFirstClassType())
1387 GEN_ERROR("LLVM functions cannot return aggregate types");
1391 $$ = new PATypeHolder(Type::VoidTy);
1395 ArgTypeList : ArgType {
1396 $$ = new TypeWithAttrsList();
1400 | ArgTypeList ',' ArgType {
1401 ($$=$1)->push_back($3);
1408 | ArgTypeList ',' DOTDOTDOT {
1410 TypeWithAttrs TWA; TWA.Attrs = FunctionType::NoAttributeSet;
1411 TWA.Ty = new PATypeHolder(Type::VoidTy);
1416 $$ = new TypeWithAttrsList;
1417 TypeWithAttrs TWA; TWA.Attrs = FunctionType::NoAttributeSet;
1418 TWA.Ty = new PATypeHolder(Type::VoidTy);
1423 $$ = new TypeWithAttrsList();
1427 // TypeList - Used for struct declarations and as a basis for function type
1428 // declaration type lists
1431 $$ = new std::list<PATypeHolder>();
1432 $$->push_back(*$1); delete $1;
1435 | TypeListI ',' Types {
1436 ($$=$1)->push_back(*$3); delete $3;
1440 // ConstVal - The various declarations that go into the constant pool. This
1441 // production is used ONLY to represent constants that show up AFTER a 'const',
1442 // 'constant' or 'global' token at global scope. Constants that can be inlined
1443 // into other expressions (such as integers and constexprs) are handled by the
1444 // ResolvedVal, ValueRef and ConstValueRef productions.
1446 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1447 if (!UpRefs.empty())
1448 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1449 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1451 GEN_ERROR("Cannot make array constant with type: '" +
1452 (*$1)->getDescription() + "'");
1453 const Type *ETy = ATy->getElementType();
1454 int NumElements = ATy->getNumElements();
1456 // Verify that we have the correct size...
1457 if (NumElements != -1 && NumElements != (int)$3->size())
1458 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1459 utostr($3->size()) + " arguments, but has size of " +
1460 itostr(NumElements) + "");
1462 // Verify all elements are correct type!
1463 for (unsigned i = 0; i < $3->size(); i++) {
1464 if (ETy != (*$3)[i]->getType())
1465 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1466 ETy->getDescription() +"' as required!\nIt is of type '"+
1467 (*$3)[i]->getType()->getDescription() + "'.");
1470 $$ = ConstantArray::get(ATy, *$3);
1471 delete $1; delete $3;
1475 if (!UpRefs.empty())
1476 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1477 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1479 GEN_ERROR("Cannot make array constant with type: '" +
1480 (*$1)->getDescription() + "'");
1482 int NumElements = ATy->getNumElements();
1483 if (NumElements != -1 && NumElements != 0)
1484 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1485 " arguments, but has size of " + itostr(NumElements) +"");
1486 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1490 | Types 'c' STRINGCONSTANT {
1491 if (!UpRefs.empty())
1492 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1493 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1495 GEN_ERROR("Cannot make array constant with type: '" +
1496 (*$1)->getDescription() + "'");
1498 int NumElements = ATy->getNumElements();
1499 const Type *ETy = ATy->getElementType();
1500 char *EndStr = UnEscapeLexed($3, true);
1501 if (NumElements != -1 && NumElements != (EndStr-$3))
1502 GEN_ERROR("Can't build string constant of size " +
1503 itostr((int)(EndStr-$3)) +
1504 " when array has size " + itostr(NumElements) + "");
1505 std::vector<Constant*> Vals;
1506 if (ETy == Type::Int8Ty) {
1507 for (unsigned char *C = (unsigned char *)$3;
1508 C != (unsigned char*)EndStr; ++C)
1509 Vals.push_back(ConstantInt::get(ETy, *C));
1512 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1515 $$ = ConstantArray::get(ATy, Vals);
1519 | Types '<' ConstVector '>' { // Nonempty unsized arr
1520 if (!UpRefs.empty())
1521 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1522 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1524 GEN_ERROR("Cannot make packed constant with type: '" +
1525 (*$1)->getDescription() + "'");
1526 const Type *ETy = PTy->getElementType();
1527 int NumElements = PTy->getNumElements();
1529 // Verify that we have the correct size...
1530 if (NumElements != -1 && NumElements != (int)$3->size())
1531 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1532 utostr($3->size()) + " arguments, but has size of " +
1533 itostr(NumElements) + "");
1535 // Verify all elements are correct type!
1536 for (unsigned i = 0; i < $3->size(); i++) {
1537 if (ETy != (*$3)[i]->getType())
1538 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1539 ETy->getDescription() +"' as required!\nIt is of type '"+
1540 (*$3)[i]->getType()->getDescription() + "'.");
1543 $$ = ConstantVector::get(PTy, *$3);
1544 delete $1; delete $3;
1547 | Types '{' ConstVector '}' {
1548 const StructType *STy = dyn_cast<StructType>($1->get());
1550 GEN_ERROR("Cannot make struct constant with type: '" +
1551 (*$1)->getDescription() + "'");
1553 if ($3->size() != STy->getNumContainedTypes())
1554 GEN_ERROR("Illegal number of initializers for structure type");
1556 // Check to ensure that constants are compatible with the type initializer!
1557 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1558 if ((*$3)[i]->getType() != STy->getElementType(i))
1559 GEN_ERROR("Expected type '" +
1560 STy->getElementType(i)->getDescription() +
1561 "' for element #" + utostr(i) +
1562 " of structure initializer");
1564 // Check to ensure that Type is not packed
1565 if (STy->isPacked())
1566 GEN_ERROR("Unpacked Initializer to vector type '" + STy->getDescription() + "'");
1568 $$ = ConstantStruct::get(STy, *$3);
1569 delete $1; delete $3;
1573 if (!UpRefs.empty())
1574 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1575 const StructType *STy = dyn_cast<StructType>($1->get());
1577 GEN_ERROR("Cannot make struct constant with type: '" +
1578 (*$1)->getDescription() + "'");
1580 if (STy->getNumContainedTypes() != 0)
1581 GEN_ERROR("Illegal number of initializers for structure type");
1583 // Check to ensure that Type is not packed
1584 if (STy->isPacked())
1585 GEN_ERROR("Unpacked Initializer to vector type '" + STy->getDescription() + "'");
1587 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1591 | Types '<' '{' ConstVector '}' '>' {
1592 const StructType *STy = dyn_cast<StructType>($1->get());
1594 GEN_ERROR("Cannot make struct constant with type: '" +
1595 (*$1)->getDescription() + "'");
1597 if ($4->size() != STy->getNumContainedTypes())
1598 GEN_ERROR("Illegal number of initializers for structure type");
1600 // Check to ensure that constants are compatible with the type initializer!
1601 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1602 if ((*$4)[i]->getType() != STy->getElementType(i))
1603 GEN_ERROR("Expected type '" +
1604 STy->getElementType(i)->getDescription() +
1605 "' for element #" + utostr(i) +
1606 " of structure initializer");
1608 // Check to ensure that Type is packed
1609 if (!STy->isPacked())
1610 GEN_ERROR("Vector initializer to non-vector type '" +
1611 STy->getDescription() + "'");
1613 $$ = ConstantStruct::get(STy, *$4);
1614 delete $1; delete $4;
1617 | Types '<' '{' '}' '>' {
1618 if (!UpRefs.empty())
1619 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1620 const StructType *STy = dyn_cast<StructType>($1->get());
1622 GEN_ERROR("Cannot make struct constant with type: '" +
1623 (*$1)->getDescription() + "'");
1625 if (STy->getNumContainedTypes() != 0)
1626 GEN_ERROR("Illegal number of initializers for structure type");
1628 // Check to ensure that Type is packed
1629 if (!STy->isPacked())
1630 GEN_ERROR("Vector initializer to non-vector type '" +
1631 STy->getDescription() + "'");
1633 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1638 if (!UpRefs.empty())
1639 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1640 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1642 GEN_ERROR("Cannot make null pointer constant with type: '" +
1643 (*$1)->getDescription() + "'");
1645 $$ = ConstantPointerNull::get(PTy);
1650 if (!UpRefs.empty())
1651 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1652 $$ = UndefValue::get($1->get());
1656 | Types SymbolicValueRef {
1657 if (!UpRefs.empty())
1658 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1659 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1661 GEN_ERROR("Global const reference must be a pointer type");
1663 // ConstExprs can exist in the body of a function, thus creating
1664 // GlobalValues whenever they refer to a variable. Because we are in
1665 // the context of a function, getExistingVal will search the functions
1666 // symbol table instead of the module symbol table for the global symbol,
1667 // which throws things all off. To get around this, we just tell
1668 // getExistingVal that we are at global scope here.
1670 Function *SavedCurFn = CurFun.CurrentFunction;
1671 CurFun.CurrentFunction = 0;
1673 Value *V = getExistingVal(Ty, $2);
1676 CurFun.CurrentFunction = SavedCurFn;
1678 // If this is an initializer for a constant pointer, which is referencing a
1679 // (currently) undefined variable, create a stub now that shall be replaced
1680 // in the future with the right type of variable.
1683 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1684 const PointerType *PT = cast<PointerType>(Ty);
1686 // First check to see if the forward references value is already created!
1687 PerModuleInfo::GlobalRefsType::iterator I =
1688 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1690 if (I != CurModule.GlobalRefs.end()) {
1691 V = I->second; // Placeholder already exists, use it...
1695 if ($2.Type == ValID::GlobalName)
1697 else if ($2.Type != ValID::GlobalID)
1698 GEN_ERROR("Invalid reference to global");
1700 // Create the forward referenced global.
1702 if (const FunctionType *FTy =
1703 dyn_cast<FunctionType>(PT->getElementType())) {
1704 GV = new Function(FTy, GlobalValue::ExternalLinkage, Name,
1705 CurModule.CurrentModule);
1707 GV = new GlobalVariable(PT->getElementType(), false,
1708 GlobalValue::ExternalLinkage, 0,
1709 Name, CurModule.CurrentModule);
1712 // Keep track of the fact that we have a forward ref to recycle it
1713 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1718 $$ = cast<GlobalValue>(V);
1719 delete $1; // Free the type handle
1723 if (!UpRefs.empty())
1724 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1725 if ($1->get() != $2->getType())
1726 GEN_ERROR("Mismatched types for constant expression: " +
1727 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1732 | Types ZEROINITIALIZER {
1733 if (!UpRefs.empty())
1734 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1735 const Type *Ty = $1->get();
1736 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1737 GEN_ERROR("Cannot create a null initialized value of this type");
1738 $$ = Constant::getNullValue(Ty);
1742 | IntType ESINT64VAL { // integral constants
1743 if (!ConstantInt::isValueValidForType($1, $2))
1744 GEN_ERROR("Constant value doesn't fit in type");
1746 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1747 Val.sextOrTrunc(BitWidth);
1748 $$ = ConstantInt::get(Val);
1751 | IntType ESAPINTVAL { // arbitrary precision integer constants
1752 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1753 if ($2->getBitWidth() > BitWidth) {
1754 GEN_ERROR("Constant value does not fit in type");
1756 $2->sextOrTrunc(BitWidth);
1757 $$ = ConstantInt::get(*$2);
1761 | IntType EUINT64VAL { // integral constants
1762 if (!ConstantInt::isValueValidForType($1, $2))
1763 GEN_ERROR("Constant value doesn't fit in type");
1764 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1765 APInt Val(BitWidth, $2);
1766 $$ = ConstantInt::get(Val);
1769 | IntType EUAPINTVAL { // arbitrary precision integer constants
1770 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1771 if ($2->getBitWidth() > BitWidth) {
1772 GEN_ERROR("Constant value does not fit in type");
1774 $2->zextOrTrunc(BitWidth);
1775 $$ = ConstantInt::get(*$2);
1779 | INTTYPE TRUETOK { // Boolean constants
1780 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1781 $$ = ConstantInt::getTrue();
1784 | INTTYPE FALSETOK { // Boolean constants
1785 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1786 $$ = ConstantInt::getFalse();
1789 | FPType FPVAL { // Float & Double constants
1790 if (!ConstantFP::isValueValidForType($1, $2))
1791 GEN_ERROR("Floating point constant invalid for type");
1792 $$ = ConstantFP::get($1, $2);
1797 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1798 if (!UpRefs.empty())
1799 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1801 const Type *DestTy = $5->get();
1802 if (!CastInst::castIsValid($1, $3, DestTy))
1803 GEN_ERROR("invalid cast opcode for cast from '" +
1804 Val->getType()->getDescription() + "' to '" +
1805 DestTy->getDescription() + "'");
1806 $$ = ConstantExpr::getCast($1, $3, DestTy);
1809 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1810 if (!isa<PointerType>($3->getType()))
1811 GEN_ERROR("GetElementPtr requires a pointer operand");
1814 GetElementPtrInst::getIndexedType($3->getType(), &(*$4)[0], $4->size(),
1817 GEN_ERROR("Index list invalid for constant getelementptr");
1819 SmallVector<Constant*, 8> IdxVec;
1820 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1821 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1822 IdxVec.push_back(C);
1824 GEN_ERROR("Indices to constant getelementptr must be constants");
1828 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1831 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1832 if ($3->getType() != Type::Int1Ty)
1833 GEN_ERROR("Select condition must be of boolean type");
1834 if ($5->getType() != $7->getType())
1835 GEN_ERROR("Select operand types must match");
1836 $$ = ConstantExpr::getSelect($3, $5, $7);
1839 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1840 if ($3->getType() != $5->getType())
1841 GEN_ERROR("Binary operator types must match");
1843 $$ = ConstantExpr::get($1, $3, $5);
1845 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1846 if ($3->getType() != $5->getType())
1847 GEN_ERROR("Logical operator types must match");
1848 if (!$3->getType()->isInteger()) {
1849 if (Instruction::isShift($1) || !isa<VectorType>($3->getType()) ||
1850 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1851 GEN_ERROR("Logical operator requires integral operands");
1853 $$ = ConstantExpr::get($1, $3, $5);
1856 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1857 if ($4->getType() != $6->getType())
1858 GEN_ERROR("icmp operand types must match");
1859 $$ = ConstantExpr::getICmp($2, $4, $6);
1861 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1862 if ($4->getType() != $6->getType())
1863 GEN_ERROR("fcmp operand types must match");
1864 $$ = ConstantExpr::getFCmp($2, $4, $6);
1866 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1867 if (!ExtractElementInst::isValidOperands($3, $5))
1868 GEN_ERROR("Invalid extractelement operands");
1869 $$ = ConstantExpr::getExtractElement($3, $5);
1872 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1873 if (!InsertElementInst::isValidOperands($3, $5, $7))
1874 GEN_ERROR("Invalid insertelement operands");
1875 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1878 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1879 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
1880 GEN_ERROR("Invalid shufflevector operands");
1881 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
1886 // ConstVector - A list of comma separated constants.
1887 ConstVector : ConstVector ',' ConstVal {
1888 ($$ = $1)->push_back($3);
1892 $$ = new std::vector<Constant*>();
1898 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
1899 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
1902 //===----------------------------------------------------------------------===//
1903 // Rules to match Modules
1904 //===----------------------------------------------------------------------===//
1906 // Module rule: Capture the result of parsing the whole file into a result
1911 $$ = ParserResult = CurModule.CurrentModule;
1912 CurModule.ModuleDone();
1916 $$ = ParserResult = CurModule.CurrentModule;
1917 CurModule.ModuleDone();
1924 | DefinitionList Definition
1928 : DEFINE { CurFun.isDeclare = false; } Function {
1929 CurFun.FunctionDone();
1932 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
1935 | MODULE ASM_TOK AsmBlock {
1939 // Emit an error if there are any unresolved types left.
1940 if (!CurModule.LateResolveTypes.empty()) {
1941 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
1942 if (DID.Type == ValID::LocalName) {
1943 GEN_ERROR("Reference to an undefined type: '"+DID.getName() + "'");
1945 GEN_ERROR("Reference to an undefined type: #" + itostr(DID.Num));
1950 | OptLocalAssign TYPE Types {
1951 if (!UpRefs.empty())
1952 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
1953 // Eagerly resolve types. This is not an optimization, this is a
1954 // requirement that is due to the fact that we could have this:
1956 // %list = type { %list * }
1957 // %list = type { %list * } ; repeated type decl
1959 // If types are not resolved eagerly, then the two types will not be
1960 // determined to be the same type!
1962 ResolveTypeTo($1, *$3);
1964 if (!setTypeName(*$3, $1) && !$1) {
1966 // If this is a named type that is not a redefinition, add it to the slot
1968 CurModule.Types.push_back(*$3);
1974 | OptLocalAssign TYPE VOID {
1975 ResolveTypeTo($1, $3);
1977 if (!setTypeName($3, $1) && !$1) {
1979 // If this is a named type that is not a redefinition, add it to the slot
1981 CurModule.Types.push_back($3);
1985 | OptGlobalAssign GVVisibilityStyle GlobalType ConstVal {
1986 /* "Externally Visible" Linkage */
1988 GEN_ERROR("Global value initializer is not a constant");
1989 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
1990 $2, $3, $4->getType(), $4);
1992 } GlobalVarAttributes {
1995 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle GlobalType ConstVal {
1997 GEN_ERROR("Global value initializer is not a constant");
1998 CurGV = ParseGlobalVariable($1, $2, $3, $4, $5->getType(), $5);
2000 } GlobalVarAttributes {
2003 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle GlobalType Types {
2004 if (!UpRefs.empty())
2005 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
2006 CurGV = ParseGlobalVariable($1, $2, $3, $4, *$5, 0);
2009 } GlobalVarAttributes {
2013 | TARGET TargetDefinition {
2016 | DEPLIBS '=' LibrariesDefinition {
2022 AsmBlock : STRINGCONSTANT {
2023 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2024 char *EndStr = UnEscapeLexed($1, true);
2025 std::string NewAsm($1, EndStr);
2028 if (AsmSoFar.empty())
2029 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2031 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2035 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2036 CurModule.CurrentModule->setTargetTriple($3);
2039 | DATALAYOUT '=' STRINGCONSTANT {
2040 CurModule.CurrentModule->setDataLayout($3);
2044 LibrariesDefinition : '[' LibList ']';
2046 LibList : LibList ',' STRINGCONSTANT {
2047 CurModule.CurrentModule->addLibrary($3);
2052 CurModule.CurrentModule->addLibrary($1);
2056 | /* empty: end of list */ {
2061 //===----------------------------------------------------------------------===//
2062 // Rules to match Function Headers
2063 //===----------------------------------------------------------------------===//
2065 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2066 if (!UpRefs.empty())
2067 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2068 if (*$3 == Type::VoidTy)
2069 GEN_ERROR("void typed arguments are invalid");
2070 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2075 | Types OptParamAttrs OptLocalName {
2076 if (!UpRefs.empty())
2077 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2078 if (*$1 == Type::VoidTy)
2079 GEN_ERROR("void typed arguments are invalid");
2080 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2081 $$ = new ArgListType;
2086 ArgList : ArgListH {
2090 | ArgListH ',' DOTDOTDOT {
2092 struct ArgListEntry E;
2093 E.Ty = new PATypeHolder(Type::VoidTy);
2095 E.Attrs = FunctionType::NoAttributeSet;
2100 $$ = new ArgListType;
2101 struct ArgListEntry E;
2102 E.Ty = new PATypeHolder(Type::VoidTy);
2104 E.Attrs = FunctionType::NoAttributeSet;
2113 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2114 OptFuncAttrs OptSection OptAlign {
2116 std::string FunctionName($3);
2117 free($3); // Free strdup'd memory!
2119 // Check the function result for abstractness if this is a define. We should
2120 // have no abstract types at this point
2121 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2122 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2124 std::vector<const Type*> ParamTypeList;
2125 std::vector<FunctionType::ParameterAttributes> ParamAttrs;
2126 ParamAttrs.push_back($7);
2127 if ($5) { // If there are arguments...
2128 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I) {
2129 const Type* Ty = I->Ty->get();
2130 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2131 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2132 ParamTypeList.push_back(Ty);
2133 if (Ty != Type::VoidTy)
2134 ParamAttrs.push_back(I->Attrs);
2138 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2139 if (isVarArg) ParamTypeList.pop_back();
2141 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg,
2143 const PointerType *PFT = PointerType::get(FT);
2147 if (!FunctionName.empty()) {
2148 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2150 ID = ValID::createGlobalID(CurModule.Values.size());
2154 // See if this function was forward referenced. If so, recycle the object.
2155 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2156 // Move the function to the end of the list, from whereever it was
2157 // previously inserted.
2158 Fn = cast<Function>(FWRef);
2159 CurModule.CurrentModule->getFunctionList().remove(Fn);
2160 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2161 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2162 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2163 if (Fn->getFunctionType() != FT ) {
2164 // The existing function doesn't have the same type. This is an overload
2166 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2167 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2168 // Neither the existing or the current function is a declaration and they
2169 // have the same name and same type. Clearly this is a redefinition.
2170 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2171 } if (Fn->isDeclaration()) {
2172 // Make sure to strip off any argument names so we can't get conflicts.
2173 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2177 } else { // Not already defined?
2178 Fn = new Function(FT, GlobalValue::ExternalLinkage, FunctionName,
2179 CurModule.CurrentModule);
2181 InsertValue(Fn, CurModule.Values);
2184 CurFun.FunctionStart(Fn);
2186 if (CurFun.isDeclare) {
2187 // If we have declaration, always overwrite linkage. This will allow us to
2188 // correctly handle cases, when pointer to function is passed as argument to
2189 // another function.
2190 Fn->setLinkage(CurFun.Linkage);
2191 Fn->setVisibility(CurFun.Visibility);
2193 Fn->setCallingConv($1);
2194 Fn->setAlignment($9);
2200 // Add all of the arguments we parsed to the function...
2201 if ($5) { // Is null if empty...
2202 if (isVarArg) { // Nuke the last entry
2203 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2204 "Not a varargs marker!");
2205 delete $5->back().Ty;
2206 $5->pop_back(); // Delete the last entry
2208 Function::arg_iterator ArgIt = Fn->arg_begin();
2209 Function::arg_iterator ArgEnd = Fn->arg_end();
2211 for (ArgListType::iterator I = $5->begin();
2212 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2213 delete I->Ty; // Delete the typeholder...
2214 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2220 delete $5; // We're now done with the argument list
2225 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2227 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2228 $$ = CurFun.CurrentFunction;
2230 // Make sure that we keep track of the linkage type even if there was a
2231 // previous "declare".
2233 $$->setVisibility($2);
2236 END : ENDTOK | '}'; // Allow end of '}' to end a function
2238 Function : BasicBlockList END {
2243 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2244 CurFun.CurrentFunction->setLinkage($1);
2245 CurFun.CurrentFunction->setVisibility($2);
2246 $$ = CurFun.CurrentFunction;
2247 CurFun.FunctionDone();
2251 //===----------------------------------------------------------------------===//
2252 // Rules to match Basic Blocks
2253 //===----------------------------------------------------------------------===//
2255 OptSideEffect : /* empty */ {
2264 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2265 $$ = ValID::create($1);
2269 $$ = ValID::create($1);
2272 | FPVAL { // Perhaps it's an FP constant?
2273 $$ = ValID::create($1);
2277 $$ = ValID::create(ConstantInt::getTrue());
2281 $$ = ValID::create(ConstantInt::getFalse());
2285 $$ = ValID::createNull();
2289 $$ = ValID::createUndef();
2292 | ZEROINITIALIZER { // A vector zero constant.
2293 $$ = ValID::createZeroInit();
2296 | '<' ConstVector '>' { // Nonempty unsized packed vector
2297 const Type *ETy = (*$2)[0]->getType();
2298 int NumElements = $2->size();
2300 VectorType* pt = VectorType::get(ETy, NumElements);
2301 PATypeHolder* PTy = new PATypeHolder(
2309 // Verify all elements are correct type!
2310 for (unsigned i = 0; i < $2->size(); i++) {
2311 if (ETy != (*$2)[i]->getType())
2312 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2313 ETy->getDescription() +"' as required!\nIt is of type '" +
2314 (*$2)[i]->getType()->getDescription() + "'.");
2317 $$ = ValID::create(ConstantVector::get(pt, *$2));
2318 delete PTy; delete $2;
2322 $$ = ValID::create($1);
2325 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2326 char *End = UnEscapeLexed($3, true);
2327 std::string AsmStr = std::string($3, End);
2328 End = UnEscapeLexed($5, true);
2329 std::string Constraints = std::string($5, End);
2330 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
2336 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2339 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2340 $$ = ValID::createLocalID($1);
2344 $$ = ValID::createGlobalID($1);
2347 | LocalName { // Is it a named reference...?
2348 $$ = ValID::createLocalName($1);
2351 | GlobalName { // Is it a named reference...?
2352 $$ = ValID::createGlobalName($1);
2356 // ValueRef - A reference to a definition... either constant or symbolic
2357 ValueRef : SymbolicValueRef | ConstValueRef;
2360 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2361 // type immediately preceeds the value reference, and allows complex constant
2362 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2363 ResolvedVal : Types ValueRef {
2364 if (!UpRefs.empty())
2365 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2366 $$ = getVal(*$1, $2);
2372 BasicBlockList : BasicBlockList BasicBlock {
2376 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2382 // Basic blocks are terminated by branching instructions:
2383 // br, br/cc, switch, ret
2385 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2386 setValueName($3, $2);
2389 $1->getInstList().push_back($3);
2394 InstructionList : InstructionList Inst {
2395 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2396 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2397 if (CI2->getParent() == 0)
2398 $1->getInstList().push_back(CI2);
2399 $1->getInstList().push_back($2);
2403 | /* empty */ { // Empty space between instruction lists
2404 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2407 | LABELSTR { // Labelled (named) basic block
2408 $$ = defineBBVal(ValID::createLocalName($1));
2412 BBTerminatorInst : RET ResolvedVal { // Return with a result...
2413 $$ = new ReturnInst($2);
2416 | RET VOID { // Return with no result...
2417 $$ = new ReturnInst();
2420 | BR LABEL ValueRef { // Unconditional Branch...
2421 BasicBlock* tmpBB = getBBVal($3);
2423 $$ = new BranchInst(tmpBB);
2424 } // Conditional Branch...
2425 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2426 assert(cast<IntegerType>($2)->getBitWidth() == 1 && "Not Bool?");
2427 BasicBlock* tmpBBA = getBBVal($6);
2429 BasicBlock* tmpBBB = getBBVal($9);
2431 Value* tmpVal = getVal(Type::Int1Ty, $3);
2433 $$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
2435 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2436 Value* tmpVal = getVal($2, $3);
2438 BasicBlock* tmpBB = getBBVal($6);
2440 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
2443 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2445 for (; I != E; ++I) {
2446 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2447 S->addCase(CI, I->second);
2449 GEN_ERROR("Switch case is constant, but not a simple integer");
2454 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2455 Value* tmpVal = getVal($2, $3);
2457 BasicBlock* tmpBB = getBBVal($6);
2459 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
2463 | INVOKE OptCallingConv ResultTypes ValueRef '(' ValueRefList ')' OptFuncAttrs
2464 TO LABEL ValueRef UNWIND LABEL ValueRef {
2466 // Handle the short syntax
2467 const PointerType *PFTy = 0;
2468 const FunctionType *Ty = 0;
2469 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2470 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2471 // Pull out the types of all of the arguments...
2472 std::vector<const Type*> ParamTypes;
2473 FunctionType::ParamAttrsList ParamAttrs;
2474 ParamAttrs.push_back($8);
2475 for (ValueRefList::iterator I = $6->begin(), E = $6->end(); I != E; ++I) {
2476 const Type *Ty = I->Val->getType();
2477 if (Ty == Type::VoidTy)
2478 GEN_ERROR("Short call syntax cannot be used with varargs");
2479 ParamTypes.push_back(Ty);
2480 ParamAttrs.push_back(I->Attrs);
2483 Ty = FunctionType::get($3->get(), ParamTypes, false, ParamAttrs);
2484 PFTy = PointerType::get(Ty);
2487 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2489 BasicBlock *Normal = getBBVal($11);
2491 BasicBlock *Except = getBBVal($14);
2494 // Check the arguments
2496 if ($6->empty()) { // Has no arguments?
2497 // Make sure no arguments is a good thing!
2498 if (Ty->getNumParams() != 0)
2499 GEN_ERROR("No arguments passed to a function that "
2500 "expects arguments");
2501 } else { // Has arguments?
2502 // Loop through FunctionType's arguments and ensure they are specified
2504 FunctionType::param_iterator I = Ty->param_begin();
2505 FunctionType::param_iterator E = Ty->param_end();
2506 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2508 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2509 if (ArgI->Val->getType() != *I)
2510 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2511 (*I)->getDescription() + "'");
2512 Args.push_back(ArgI->Val);
2515 if (Ty->isVarArg()) {
2517 for (; ArgI != ArgE; ++ArgI)
2518 Args.push_back(ArgI->Val); // push the remaining varargs
2519 } else if (I != E || ArgI != ArgE)
2520 GEN_ERROR("Invalid number of parameters detected");
2523 // Create the InvokeInst
2524 InvokeInst *II = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
2525 II->setCallingConv($2);
2531 $$ = new UnwindInst();
2535 $$ = new UnreachableInst();
2541 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2543 Constant *V = cast<Constant>(getExistingVal($2, $3));
2546 GEN_ERROR("May only switch on a constant pool value");
2548 BasicBlock* tmpBB = getBBVal($6);
2550 $$->push_back(std::make_pair(V, tmpBB));
2552 | IntType ConstValueRef ',' LABEL ValueRef {
2553 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2554 Constant *V = cast<Constant>(getExistingVal($1, $2));
2558 GEN_ERROR("May only switch on a constant pool value");
2560 BasicBlock* tmpBB = getBBVal($5);
2562 $$->push_back(std::make_pair(V, tmpBB));
2565 Inst : OptLocalAssign InstVal {
2566 // Is this definition named?? if so, assign the name...
2567 setValueName($2, $1);
2575 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2576 if (!UpRefs.empty())
2577 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2578 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2579 Value* tmpVal = getVal(*$1, $3);
2581 BasicBlock* tmpBB = getBBVal($5);
2583 $$->push_back(std::make_pair(tmpVal, tmpBB));
2586 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2588 Value* tmpVal = getVal($1->front().first->getType(), $4);
2590 BasicBlock* tmpBB = getBBVal($6);
2592 $1->push_back(std::make_pair(tmpVal, tmpBB));
2596 ValueRefList : Types ValueRef OptParamAttrs {
2597 if (!UpRefs.empty())
2598 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2599 // Used for call and invoke instructions
2600 $$ = new ValueRefList();
2601 ValueRefListEntry E; E.Attrs = $3; E.Val = getVal($1->get(), $2);
2604 | ValueRefList ',' Types ValueRef OptParamAttrs {
2605 if (!UpRefs.empty())
2606 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2608 ValueRefListEntry E; E.Attrs = $5; E.Val = getVal($3->get(), $4);
2612 | /*empty*/ { $$ = new ValueRefList(); };
2614 IndexList // Used for gep instructions and constant expressions
2615 : /*empty*/ { $$ = new std::vector<Value*>(); }
2616 | IndexList ',' ResolvedVal {
2623 OptTailCall : TAIL CALL {
2632 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
2633 if (!UpRefs.empty())
2634 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2635 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
2636 !isa<VectorType>((*$2).get()))
2638 "Arithmetic operator requires integer, FP, or packed operands");
2639 if (isa<VectorType>((*$2).get()) &&
2640 ($1 == Instruction::URem ||
2641 $1 == Instruction::SRem ||
2642 $1 == Instruction::FRem))
2643 GEN_ERROR("Remainder not supported on vector types");
2644 Value* val1 = getVal(*$2, $3);
2646 Value* val2 = getVal(*$2, $5);
2648 $$ = BinaryOperator::create($1, val1, val2);
2650 GEN_ERROR("binary operator returned null");
2653 | LogicalOps Types ValueRef ',' ValueRef {
2654 if (!UpRefs.empty())
2655 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2656 if (!(*$2)->isInteger()) {
2657 if (Instruction::isShift($1) || !isa<VectorType>($2->get()) ||
2658 !cast<VectorType>($2->get())->getElementType()->isInteger())
2659 GEN_ERROR("Logical operator requires integral operands");
2661 Value* tmpVal1 = getVal(*$2, $3);
2663 Value* tmpVal2 = getVal(*$2, $5);
2665 $$ = BinaryOperator::create($1, tmpVal1, tmpVal2);
2667 GEN_ERROR("binary operator returned null");
2670 | ICMP IPredicates Types ValueRef ',' ValueRef {
2671 if (!UpRefs.empty())
2672 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2673 if (isa<VectorType>((*$3).get()))
2674 GEN_ERROR("Vector types not supported by icmp instruction");
2675 Value* tmpVal1 = getVal(*$3, $4);
2677 Value* tmpVal2 = getVal(*$3, $6);
2679 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2681 GEN_ERROR("icmp operator returned null");
2683 | FCMP FPredicates Types ValueRef ',' ValueRef {
2684 if (!UpRefs.empty())
2685 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2686 if (isa<VectorType>((*$3).get()))
2687 GEN_ERROR("Vector types not supported by fcmp instruction");
2688 Value* tmpVal1 = getVal(*$3, $4);
2690 Value* tmpVal2 = getVal(*$3, $6);
2692 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2694 GEN_ERROR("fcmp operator returned null");
2696 | CastOps ResolvedVal TO Types {
2697 if (!UpRefs.empty())
2698 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2700 const Type* DestTy = $4->get();
2701 if (!CastInst::castIsValid($1, Val, DestTy))
2702 GEN_ERROR("invalid cast opcode for cast from '" +
2703 Val->getType()->getDescription() + "' to '" +
2704 DestTy->getDescription() + "'");
2705 $$ = CastInst::create($1, Val, DestTy);
2708 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2709 if ($2->getType() != Type::Int1Ty)
2710 GEN_ERROR("select condition must be boolean");
2711 if ($4->getType() != $6->getType())
2712 GEN_ERROR("select value types should match");
2713 $$ = new SelectInst($2, $4, $6);
2716 | VAARG ResolvedVal ',' Types {
2717 if (!UpRefs.empty())
2718 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2719 $$ = new VAArgInst($2, *$4);
2723 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
2724 if (!ExtractElementInst::isValidOperands($2, $4))
2725 GEN_ERROR("Invalid extractelement operands");
2726 $$ = new ExtractElementInst($2, $4);
2729 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2730 if (!InsertElementInst::isValidOperands($2, $4, $6))
2731 GEN_ERROR("Invalid insertelement operands");
2732 $$ = new InsertElementInst($2, $4, $6);
2735 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2736 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
2737 GEN_ERROR("Invalid shufflevector operands");
2738 $$ = new ShuffleVectorInst($2, $4, $6);
2742 const Type *Ty = $2->front().first->getType();
2743 if (!Ty->isFirstClassType())
2744 GEN_ERROR("PHI node operands must be of first class type");
2745 $$ = new PHINode(Ty);
2746 ((PHINode*)$$)->reserveOperandSpace($2->size());
2747 while ($2->begin() != $2->end()) {
2748 if ($2->front().first->getType() != Ty)
2749 GEN_ERROR("All elements of a PHI node must be of the same type");
2750 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
2753 delete $2; // Free the list...
2756 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ValueRefList ')'
2759 // Handle the short syntax
2760 const PointerType *PFTy = 0;
2761 const FunctionType *Ty = 0;
2762 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2763 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2764 // Pull out the types of all of the arguments...
2765 std::vector<const Type*> ParamTypes;
2766 FunctionType::ParamAttrsList ParamAttrs;
2767 ParamAttrs.push_back($8);
2768 for (ValueRefList::iterator I = $6->begin(), E = $6->end(); I != E; ++I) {
2769 const Type *Ty = I->Val->getType();
2770 if (Ty == Type::VoidTy)
2771 GEN_ERROR("Short call syntax cannot be used with varargs");
2772 ParamTypes.push_back(Ty);
2773 ParamAttrs.push_back(I->Attrs);
2776 Ty = FunctionType::get($3->get(), ParamTypes, false, ParamAttrs);
2777 PFTy = PointerType::get(Ty);
2780 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2783 // Check the arguments
2785 if ($6->empty()) { // Has no arguments?
2786 // Make sure no arguments is a good thing!
2787 if (Ty->getNumParams() != 0)
2788 GEN_ERROR("No arguments passed to a function that "
2789 "expects arguments");
2790 } else { // Has arguments?
2791 // Loop through FunctionType's arguments and ensure they are specified
2794 FunctionType::param_iterator I = Ty->param_begin();
2795 FunctionType::param_iterator E = Ty->param_end();
2796 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2798 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2799 if (ArgI->Val->getType() != *I)
2800 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2801 (*I)->getDescription() + "'");
2802 Args.push_back(ArgI->Val);
2804 if (Ty->isVarArg()) {
2806 for (; ArgI != ArgE; ++ArgI)
2807 Args.push_back(ArgI->Val); // push the remaining varargs
2808 } else if (I != E || ArgI != ArgE)
2809 GEN_ERROR("Invalid number of parameters detected");
2811 // Create the call node
2812 CallInst *CI = new CallInst(V, &Args[0], Args.size());
2813 CI->setTailCall($1);
2814 CI->setCallingConv($2);
2825 OptVolatile : VOLATILE {
2836 MemoryInst : MALLOC Types OptCAlign {
2837 if (!UpRefs.empty())
2838 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2839 $$ = new MallocInst(*$2, 0, $3);
2843 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
2844 if (!UpRefs.empty())
2845 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2846 Value* tmpVal = getVal($4, $5);
2848 $$ = new MallocInst(*$2, tmpVal, $6);
2851 | ALLOCA Types OptCAlign {
2852 if (!UpRefs.empty())
2853 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2854 $$ = new AllocaInst(*$2, 0, $3);
2858 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
2859 if (!UpRefs.empty())
2860 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2861 Value* tmpVal = getVal($4, $5);
2863 $$ = new AllocaInst(*$2, tmpVal, $6);
2866 | FREE ResolvedVal {
2867 if (!isa<PointerType>($2->getType()))
2868 GEN_ERROR("Trying to free nonpointer type " +
2869 $2->getType()->getDescription() + "");
2870 $$ = new FreeInst($2);
2874 | OptVolatile LOAD Types ValueRef {
2875 if (!UpRefs.empty())
2876 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2877 if (!isa<PointerType>($3->get()))
2878 GEN_ERROR("Can't load from nonpointer type: " +
2879 (*$3)->getDescription());
2880 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
2881 GEN_ERROR("Can't load from pointer of non-first-class type: " +
2882 (*$3)->getDescription());
2883 Value* tmpVal = getVal(*$3, $4);
2885 $$ = new LoadInst(tmpVal, "", $1);
2888 | OptVolatile STORE ResolvedVal ',' Types ValueRef {
2889 if (!UpRefs.empty())
2890 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
2891 const PointerType *PT = dyn_cast<PointerType>($5->get());
2893 GEN_ERROR("Can't store to a nonpointer type: " +
2894 (*$5)->getDescription());
2895 const Type *ElTy = PT->getElementType();
2896 if (ElTy != $3->getType())
2897 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
2898 "' into space of type '" + ElTy->getDescription() + "'");
2900 Value* tmpVal = getVal(*$5, $6);
2902 $$ = new StoreInst($3, tmpVal, $1);
2905 | GETELEMENTPTR Types ValueRef IndexList {
2906 if (!UpRefs.empty())
2907 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2908 if (!isa<PointerType>($2->get()))
2909 GEN_ERROR("getelementptr insn requires pointer operand");
2911 if (!GetElementPtrInst::getIndexedType(*$2, &(*$4)[0], $4->size(), true))
2912 GEN_ERROR("Invalid getelementptr indices for type '" +
2913 (*$2)->getDescription()+ "'");
2914 Value* tmpVal = getVal(*$2, $3);
2916 $$ = new GetElementPtrInst(tmpVal, &(*$4)[0], $4->size());
2924 // common code from the two 'RunVMAsmParser' functions
2925 static Module* RunParser(Module * M) {
2927 llvmAsmlineno = 1; // Reset the current line number...
2928 CurModule.CurrentModule = M;
2933 // Check to make sure the parser succeeded
2936 delete ParserResult;
2940 // Check to make sure that parsing produced a result
2944 // Reset ParserResult variable while saving its value for the result.
2945 Module *Result = ParserResult;
2951 void llvm::GenerateError(const std::string &message, int LineNo) {
2952 if (LineNo == -1) LineNo = llvmAsmlineno;
2953 // TODO: column number in exception
2955 TheParseError->setError(CurFilename, message, LineNo);
2959 int yyerror(const char *ErrorMsg) {
2961 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
2962 + ":" + utostr((unsigned) llvmAsmlineno) + ": ";
2963 std::string errMsg = where + "error: " + std::string(ErrorMsg);
2964 if (yychar != YYEMPTY && yychar != 0)
2965 errMsg += " while reading token: '" + std::string(llvmAsmtext, llvmAsmleng)+
2967 GenerateError(errMsg);