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);
205 static struct PerFunctionInfo {
206 Function *CurrentFunction; // Pointer to current function being created
208 ValueList Values; // Keep track of #'d definitions
210 ValueList LateResolveValues;
211 bool isDeclare; // Is this function a forward declararation?
212 GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
213 GlobalValue::VisibilityTypes Visibility;
215 /// BBForwardRefs - When we see forward references to basic blocks, keep
216 /// track of them here.
217 std::map<ValID, BasicBlock*> BBForwardRefs;
219 inline PerFunctionInfo() {
222 Linkage = GlobalValue::ExternalLinkage;
223 Visibility = GlobalValue::DefaultVisibility;
226 inline void FunctionStart(Function *M) {
231 void FunctionDone() {
232 // Any forward referenced blocks left?
233 if (!BBForwardRefs.empty()) {
234 GenerateError("Undefined reference to label " +
235 BBForwardRefs.begin()->second->getName());
239 // Resolve all forward references now.
240 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
242 Values.clear(); // Clear out function local definitions
243 BBForwardRefs.clear();
246 Linkage = GlobalValue::ExternalLinkage;
247 Visibility = GlobalValue::DefaultVisibility;
249 } CurFun; // Info for the current function...
251 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
254 //===----------------------------------------------------------------------===//
255 // Code to handle definitions of all the types
256 //===----------------------------------------------------------------------===//
258 static void InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
259 // Things that have names or are void typed don't get slot numbers
260 if (V->hasName() || (V->getType() == Type::VoidTy))
263 // In the case of function values, we have to allow for the forward reference
264 // of basic blocks, which are included in the numbering. Consequently, we keep
265 // track of the next insertion location with NextValNum. When a BB gets
266 // inserted, it could change the size of the CurFun.Values vector.
267 if (&ValueTab == &CurFun.Values) {
268 if (ValueTab.size() <= CurFun.NextValNum)
269 ValueTab.resize(CurFun.NextValNum+1);
270 ValueTab[CurFun.NextValNum++] = V;
273 // For all other lists, its okay to just tack it on the back of the vector.
274 ValueTab.push_back(V);
277 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
279 case ValID::LocalID: // Is it a numbered definition?
280 // Module constants occupy the lowest numbered slots...
281 if (D.Num < CurModule.Types.size())
282 return CurModule.Types[D.Num];
284 case ValID::LocalName: // Is it a named definition?
285 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
286 D.destroy(); // Free old strdup'd memory...
291 GenerateError("Internal parser error: Invalid symbol type reference");
295 // If we reached here, we referenced either a symbol that we don't know about
296 // or an id number that hasn't been read yet. We may be referencing something
297 // forward, so just create an entry to be resolved later and get to it...
299 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
302 if (inFunctionScope()) {
303 if (D.Type == ValID::LocalName) {
304 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
307 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
312 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
313 if (I != CurModule.LateResolveTypes.end())
316 Type *Typ = OpaqueType::get();
317 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
321 // getExistingVal - Look up the value specified by the provided type and
322 // the provided ValID. If the value exists and has already been defined, return
323 // it. Otherwise return null.
325 static Value *getExistingVal(const Type *Ty, const ValID &D) {
326 if (isa<FunctionType>(Ty)) {
327 GenerateError("Functions are not values and "
328 "must be referenced as pointers");
333 case ValID::LocalID: { // Is it a numbered definition?
334 // Check that the number is within bounds.
335 if (D.Num >= CurFun.Values.size())
337 Value *Result = CurFun.Values[D.Num];
338 if (Ty != Result->getType()) {
339 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
340 Result->getType()->getDescription() + "' does not match "
341 "expected type, '" + Ty->getDescription() + "'");
346 case ValID::GlobalID: { // Is it a numbered definition?
347 if (D.Num >= CurModule.Values.size())
349 Value *Result = CurModule.Values[D.Num];
350 if (Ty != Result->getType()) {
351 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
352 Result->getType()->getDescription() + "' does not match "
353 "expected type, '" + Ty->getDescription() + "'");
359 case ValID::LocalName: { // Is it a named definition?
360 if (!inFunctionScope())
362 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
363 Value *N = SymTab.lookup(D.Name);
366 if (N->getType() != Ty)
369 D.destroy(); // Free old strdup'd memory...
372 case ValID::GlobalName: { // Is it a named definition?
373 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
374 Value *N = SymTab.lookup(D.Name);
377 if (N->getType() != Ty)
380 D.destroy(); // Free old strdup'd memory...
384 // Check to make sure that "Ty" is an integral type, and that our
385 // value will fit into the specified type...
386 case ValID::ConstSIntVal: // Is it a constant pool reference??
387 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
388 GenerateError("Signed integral constant '" +
389 itostr(D.ConstPool64) + "' is invalid for type '" +
390 Ty->getDescription() + "'");
393 return ConstantInt::get(Ty, D.ConstPool64, true);
395 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
396 if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
397 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
398 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
399 "' is invalid or out of range");
401 } else { // This is really a signed reference. Transmogrify.
402 return ConstantInt::get(Ty, D.ConstPool64, true);
405 return ConstantInt::get(Ty, D.UConstPool64);
408 case ValID::ConstFPVal: // Is it a floating point const pool reference?
409 if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP)) {
410 GenerateError("FP constant invalid for type");
413 return ConstantFP::get(Ty, D.ConstPoolFP);
415 case ValID::ConstNullVal: // Is it a null value?
416 if (!isa<PointerType>(Ty)) {
417 GenerateError("Cannot create a a non pointer null");
420 return ConstantPointerNull::get(cast<PointerType>(Ty));
422 case ValID::ConstUndefVal: // Is it an undef value?
423 return UndefValue::get(Ty);
425 case ValID::ConstZeroVal: // Is it a zero value?
426 return Constant::getNullValue(Ty);
428 case ValID::ConstantVal: // Fully resolved constant?
429 if (D.ConstantValue->getType() != Ty) {
430 GenerateError("Constant expression type different from required type");
433 return D.ConstantValue;
435 case ValID::InlineAsmVal: { // Inline asm expression
436 const PointerType *PTy = dyn_cast<PointerType>(Ty);
437 const FunctionType *FTy =
438 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
439 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
440 GenerateError("Invalid type for asm constraint string");
443 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
444 D.IAD->HasSideEffects);
445 D.destroy(); // Free InlineAsmDescriptor.
449 assert(0 && "Unhandled case!");
453 assert(0 && "Unhandled case!");
457 // getVal - This function is identical to getExistingVal, except that if a
458 // value is not already defined, it "improvises" by creating a placeholder var
459 // that looks and acts just like the requested variable. When the value is
460 // defined later, all uses of the placeholder variable are replaced with the
463 static Value *getVal(const Type *Ty, const ValID &ID) {
464 if (Ty == Type::LabelTy) {
465 GenerateError("Cannot use a basic block here");
469 // See if the value has already been defined.
470 Value *V = getExistingVal(Ty, ID);
472 if (TriggerError) return 0;
474 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
475 GenerateError("Invalid use of a composite type");
479 // If we reached here, we referenced either a symbol that we don't know about
480 // or an id number that hasn't been read yet. We may be referencing something
481 // forward, so just create an entry to be resolved later and get to it...
484 case ValID::GlobalName:
485 case ValID::GlobalID:
486 const PointerType *PTy = dyn_cast<PointerType>(Ty);
488 GenerateError("Invalid type for reference to global" );
491 const Type* ElTy = PTy->getElementType();
492 if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy))
493 V = new Function(FTy, GlobalValue::ExternalLinkage);
495 V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage);
498 V = new Argument(Ty);
501 // Remember where this forward reference came from. FIXME, shouldn't we try
502 // to recycle these things??
503 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
506 if (inFunctionScope())
507 InsertValue(V, CurFun.LateResolveValues);
509 InsertValue(V, CurModule.LateResolveValues);
513 /// defineBBVal - This is a definition of a new basic block with the specified
514 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
515 static BasicBlock *defineBBVal(const ValID &ID) {
516 assert(inFunctionScope() && "Can't get basic block at global scope!");
520 // First, see if this was forward referenced
522 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
523 if (BBI != CurFun.BBForwardRefs.end()) {
525 // The forward declaration could have been inserted anywhere in the
526 // function: insert it into the correct place now.
527 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
528 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
530 // We're about to erase the entry, save the key so we can clean it up.
531 ValID Tmp = BBI->first;
533 // Erase the forward ref from the map as its no longer "forward"
534 CurFun.BBForwardRefs.erase(ID);
536 // The key has been removed from the map but so we don't want to leave
537 // strdup'd memory around so destroy it too.
540 // If its a numbered definition, bump the number and set the BB value.
541 if (ID.Type == ValID::LocalID) {
542 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
550 // We haven't seen this BB before and its first mention is a definition.
551 // Just create it and return it.
552 std::string Name (ID.Type == ValID::LocalName ? ID.Name : "");
553 BB = new BasicBlock(Name, CurFun.CurrentFunction);
554 if (ID.Type == ValID::LocalID) {
555 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
559 ID.destroy(); // Free strdup'd memory
563 /// getBBVal - get an existing BB value or create a forward reference for it.
565 static BasicBlock *getBBVal(const ValID &ID) {
566 assert(inFunctionScope() && "Can't get basic block at global scope!");
570 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
571 if (BBI != CurFun.BBForwardRefs.end()) {
573 } if (ID.Type == ValID::LocalName) {
574 std::string Name = ID.Name;
575 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
577 if (N->getType()->getTypeID() == Type::LabelTyID)
578 BB = cast<BasicBlock>(N);
580 GenerateError("Reference to label '" + Name + "' is actually of type '"+
581 N->getType()->getDescription() + "'");
582 } else if (ID.Type == ValID::LocalID) {
583 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
584 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
585 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
587 GenerateError("Reference to label '%" + utostr(ID.Num) +
588 "' is actually of type '"+
589 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
592 GenerateError("Illegal label reference " + ID.getName());
596 // If its already been defined, return it now.
598 ID.destroy(); // Free strdup'd memory.
602 // Otherwise, this block has not been seen before, create it.
604 if (ID.Type == ValID::LocalName)
606 BB = new BasicBlock(Name, CurFun.CurrentFunction);
608 // Insert it in the forward refs map.
609 CurFun.BBForwardRefs[ID] = BB;
615 //===----------------------------------------------------------------------===//
616 // Code to handle forward references in instructions
617 //===----------------------------------------------------------------------===//
619 // This code handles the late binding needed with statements that reference
620 // values not defined yet... for example, a forward branch, or the PHI node for
623 // This keeps a table (CurFun.LateResolveValues) of all such forward references
624 // and back patchs after we are done.
627 // ResolveDefinitions - If we could not resolve some defs at parsing
628 // time (forward branches, phi functions for loops, etc...) resolve the
632 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
633 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
634 while (!LateResolvers.empty()) {
635 Value *V = LateResolvers.back();
636 LateResolvers.pop_back();
638 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
639 CurModule.PlaceHolderInfo.find(V);
640 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
642 ValID &DID = PHI->second.first;
644 Value *TheRealValue = getExistingVal(V->getType(), DID);
648 V->replaceAllUsesWith(TheRealValue);
650 CurModule.PlaceHolderInfo.erase(PHI);
651 } else if (FutureLateResolvers) {
652 // Functions have their unresolved items forwarded to the module late
654 InsertValue(V, *FutureLateResolvers);
656 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
657 GenerateError("Reference to an invalid definition: '" +DID.getName()+
658 "' of type '" + V->getType()->getDescription() + "'",
662 GenerateError("Reference to an invalid definition: #" +
663 itostr(DID.Num) + " of type '" +
664 V->getType()->getDescription() + "'",
670 LateResolvers.clear();
673 // ResolveTypeTo - A brand new type was just declared. This means that (if
674 // name is not null) things referencing Name can be resolved. Otherwise, things
675 // refering to the number can be resolved. Do this now.
677 static void ResolveTypeTo(char *Name, const Type *ToTy) {
679 if (Name) D = ValID::createLocalName(Name);
680 else D = ValID::createLocalID(CurModule.Types.size());
682 std::map<ValID, PATypeHolder>::iterator I =
683 CurModule.LateResolveTypes.find(D);
684 if (I != CurModule.LateResolveTypes.end()) {
685 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
686 CurModule.LateResolveTypes.erase(I);
690 // setValueName - Set the specified value to the name given. The name may be
691 // null potentially, in which case this is a noop. The string passed in is
692 // assumed to be a malloc'd string buffer, and is free'd by this function.
694 static void setValueName(Value *V, char *NameStr) {
695 if (!NameStr) return;
696 std::string Name(NameStr); // Copy string
697 free(NameStr); // Free old string
699 if (V->getType() == Type::VoidTy) {
700 GenerateError("Can't assign name '" + Name+"' to value with void type");
704 assert(inFunctionScope() && "Must be in function scope!");
705 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
706 if (ST.lookup(Name)) {
707 GenerateError("Redefinition of value '" + Name + "' of type '" +
708 V->getType()->getDescription() + "'");
716 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
717 /// this is a declaration, otherwise it is a definition.
718 static GlobalVariable *
719 ParseGlobalVariable(char *NameStr,
720 GlobalValue::LinkageTypes Linkage,
721 GlobalValue::VisibilityTypes Visibility,
722 bool isConstantGlobal, const Type *Ty,
723 Constant *Initializer, bool IsThreadLocal) {
724 if (isa<FunctionType>(Ty)) {
725 GenerateError("Cannot declare global vars of function type");
729 const PointerType *PTy = PointerType::get(Ty);
733 Name = NameStr; // Copy string
734 free(NameStr); // Free old string
737 // See if this global value was forward referenced. If so, recycle the
741 ID = ValID::createGlobalName((char*)Name.c_str());
743 ID = ValID::createGlobalID(CurModule.Values.size());
746 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
747 // Move the global to the end of the list, from whereever it was
748 // previously inserted.
749 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
750 CurModule.CurrentModule->getGlobalList().remove(GV);
751 CurModule.CurrentModule->getGlobalList().push_back(GV);
752 GV->setInitializer(Initializer);
753 GV->setLinkage(Linkage);
754 GV->setVisibility(Visibility);
755 GV->setConstant(isConstantGlobal);
756 GV->setThreadLocal(IsThreadLocal);
757 InsertValue(GV, CurModule.Values);
761 // If this global has a name
763 // if the global we're parsing has an initializer (is a definition) and
764 // has external linkage.
765 if (Initializer && Linkage != GlobalValue::InternalLinkage)
766 // If there is already a global with external linkage with this name
767 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
768 // If we allow this GVar to get created, it will be renamed in the
769 // symbol table because it conflicts with an existing GVar. We can't
770 // allow redefinition of GVars whose linking indicates that their name
771 // must stay the same. Issue the error.
772 GenerateError("Redefinition of global variable named '" + Name +
773 "' of type '" + Ty->getDescription() + "'");
778 // Otherwise there is no existing GV to use, create one now.
780 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
781 CurModule.CurrentModule, IsThreadLocal);
782 GV->setVisibility(Visibility);
783 InsertValue(GV, CurModule.Values);
787 // setTypeName - Set the specified type to the name given. The name may be
788 // null potentially, in which case this is a noop. The string passed in is
789 // assumed to be a malloc'd string buffer, and is freed by this function.
791 // This function returns true if the type has already been defined, but is
792 // allowed to be redefined in the specified context. If the name is a new name
793 // for the type plane, it is inserted and false is returned.
794 static bool setTypeName(const Type *T, char *NameStr) {
795 assert(!inFunctionScope() && "Can't give types function-local names!");
796 if (NameStr == 0) return false;
798 std::string Name(NameStr); // Copy string
799 free(NameStr); // Free old string
801 // We don't allow assigning names to void type
802 if (T == Type::VoidTy) {
803 GenerateError("Can't assign name '" + Name + "' to the void type");
807 // Set the type name, checking for conflicts as we do so.
808 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
810 if (AlreadyExists) { // Inserting a name that is already defined???
811 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
812 assert(Existing && "Conflict but no matching type?!");
814 // There is only one case where this is allowed: when we are refining an
815 // opaque type. In this case, Existing will be an opaque type.
816 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
817 // We ARE replacing an opaque type!
818 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
822 // Otherwise, this is an attempt to redefine a type. That's okay if
823 // the redefinition is identical to the original. This will be so if
824 // Existing and T point to the same Type object. In this one case we
825 // allow the equivalent redefinition.
826 if (Existing == T) return true; // Yes, it's equal.
828 // Any other kind of (non-equivalent) redefinition is an error.
829 GenerateError("Redefinition of type named '" + Name + "' of type '" +
830 T->getDescription() + "'");
836 //===----------------------------------------------------------------------===//
837 // Code for handling upreferences in type names...
840 // TypeContains - Returns true if Ty directly contains E in it.
842 static bool TypeContains(const Type *Ty, const Type *E) {
843 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
844 E) != Ty->subtype_end();
849 // NestingLevel - The number of nesting levels that need to be popped before
850 // this type is resolved.
851 unsigned NestingLevel;
853 // LastContainedTy - This is the type at the current binding level for the
854 // type. Every time we reduce the nesting level, this gets updated.
855 const Type *LastContainedTy;
857 // UpRefTy - This is the actual opaque type that the upreference is
861 UpRefRecord(unsigned NL, OpaqueType *URTy)
862 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
866 // UpRefs - A list of the outstanding upreferences that need to be resolved.
867 static std::vector<UpRefRecord> UpRefs;
869 /// HandleUpRefs - Every time we finish a new layer of types, this function is
870 /// called. It loops through the UpRefs vector, which is a list of the
871 /// currently active types. For each type, if the up reference is contained in
872 /// the newly completed type, we decrement the level count. When the level
873 /// count reaches zero, the upreferenced type is the type that is passed in:
874 /// thus we can complete the cycle.
876 static PATypeHolder HandleUpRefs(const Type *ty) {
877 // If Ty isn't abstract, or if there are no up-references in it, then there is
878 // nothing to resolve here.
879 if (!ty->isAbstract() || UpRefs.empty()) return ty;
882 UR_OUT("Type '" << Ty->getDescription() <<
883 "' newly formed. Resolving upreferences.\n" <<
884 UpRefs.size() << " upreferences active!\n");
886 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
887 // to zero), we resolve them all together before we resolve them to Ty. At
888 // the end of the loop, if there is anything to resolve to Ty, it will be in
890 OpaqueType *TypeToResolve = 0;
892 for (unsigned i = 0; i != UpRefs.size(); ++i) {
893 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
894 << UpRefs[i].second->getDescription() << ") = "
895 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
896 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
897 // Decrement level of upreference
898 unsigned Level = --UpRefs[i].NestingLevel;
899 UpRefs[i].LastContainedTy = Ty;
900 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
901 if (Level == 0) { // Upreference should be resolved!
902 if (!TypeToResolve) {
903 TypeToResolve = UpRefs[i].UpRefTy;
905 UR_OUT(" * Resolving upreference for "
906 << UpRefs[i].second->getDescription() << "\n";
907 std::string OldName = UpRefs[i].UpRefTy->getDescription());
908 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
909 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
910 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
912 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
913 --i; // Do not skip the next element...
919 UR_OUT(" * Resolving upreference for "
920 << UpRefs[i].second->getDescription() << "\n";
921 std::string OldName = TypeToResolve->getDescription());
922 TypeToResolve->refineAbstractTypeTo(Ty);
928 //===----------------------------------------------------------------------===//
929 // RunVMAsmParser - Define an interface to this parser
930 //===----------------------------------------------------------------------===//
932 static Module* RunParser(Module * M);
934 Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
937 CurFilename = Filename;
938 return RunParser(new Module(CurFilename));
941 Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
942 set_scan_string(AsmString);
944 CurFilename = "from_memory";
946 return RunParser(new Module (CurFilename));
955 llvm::Module *ModuleVal;
956 llvm::Function *FunctionVal;
957 llvm::BasicBlock *BasicBlockVal;
958 llvm::TerminatorInst *TermInstVal;
959 llvm::Instruction *InstVal;
960 llvm::Constant *ConstVal;
962 const llvm::Type *PrimType;
963 std::list<llvm::PATypeHolder> *TypeList;
964 llvm::PATypeHolder *TypeVal;
965 llvm::Value *ValueVal;
966 std::vector<llvm::Value*> *ValueList;
967 llvm::ArgListType *ArgList;
968 llvm::TypeWithAttrs TypeWithAttrs;
969 llvm::TypeWithAttrsList *TypeWithAttrsList;
970 llvm::ValueRefList *ValueRefList;
972 // Represent the RHS of PHI node
973 std::list<std::pair<llvm::Value*,
974 llvm::BasicBlock*> > *PHIList;
975 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
976 std::vector<llvm::Constant*> *ConstVector;
978 llvm::GlobalValue::LinkageTypes Linkage;
979 llvm::GlobalValue::VisibilityTypes Visibility;
981 llvm::APInt *APIntVal;
989 char *StrVal; // This memory is strdup'd!
990 llvm::ValID ValIDVal; // strdup'd memory maybe!
992 llvm::Instruction::BinaryOps BinaryOpVal;
993 llvm::Instruction::TermOps TermOpVal;
994 llvm::Instruction::MemoryOps MemOpVal;
995 llvm::Instruction::CastOps CastOpVal;
996 llvm::Instruction::OtherOps OtherOpVal;
997 llvm::ICmpInst::Predicate IPredicate;
998 llvm::FCmpInst::Predicate FPredicate;
1001 %type <ModuleVal> Module
1002 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1003 %type <BasicBlockVal> BasicBlock InstructionList
1004 %type <TermInstVal> BBTerminatorInst
1005 %type <InstVal> Inst InstVal MemoryInst
1006 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1007 %type <ConstVector> ConstVector
1008 %type <ArgList> ArgList ArgListH
1009 %type <PHIList> PHIList
1010 %type <ValueRefList> ValueRefList // For call param lists & GEP indices
1011 %type <ValueList> IndexList // For GEP indices
1012 %type <TypeList> TypeListI
1013 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1014 %type <TypeWithAttrs> ArgType
1015 %type <JumpTable> JumpTable
1016 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1017 %type <BoolVal> ThreadLocal // 'thread_local' or not
1018 %type <BoolVal> OptVolatile // 'volatile' or not
1019 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1020 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1021 %type <Linkage> GVInternalLinkage GVExternalLinkage
1022 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1023 %type <Linkage> AliasLinkage
1024 %type <Visibility> GVVisibilityStyle
1026 // ValueRef - Unresolved reference to a definition or BB
1027 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1028 %type <ValueVal> ResolvedVal // <type> <valref> pair
1029 // Tokens and types for handling constant integer values
1031 // ESINT64VAL - A negative number within long long range
1032 %token <SInt64Val> ESINT64VAL
1034 // EUINT64VAL - A positive number within uns. long long range
1035 %token <UInt64Val> EUINT64VAL
1037 // ESAPINTVAL - A negative number with arbitrary precision
1038 %token <APIntVal> ESAPINTVAL
1040 // EUAPINTVAL - A positive number with arbitrary precision
1041 %token <APIntVal> EUAPINTVAL
1043 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1044 %token <FPVal> FPVAL // Float or Double constant
1046 // Built in types...
1047 %type <TypeVal> Types ResultTypes
1048 %type <PrimType> IntType FPType PrimType // Classifications
1049 %token <PrimType> VOID INTTYPE
1050 %token <PrimType> FLOAT DOUBLE LABEL
1053 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR STRINGCONSTANT ATSTRINGCONSTANT
1054 %type <StrVal> LocalName OptLocalName OptLocalAssign
1055 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1056 %type <UIntVal> OptAlign OptCAlign
1057 %type <StrVal> OptSection SectionString
1059 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1060 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1061 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1062 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1063 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN
1064 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1065 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1067 %type <UIntVal> OptCallingConv
1068 %type <ParamAttrs> OptParamAttrs ParamAttr
1069 %type <ParamAttrs> OptFuncAttrs FuncAttr
1071 // Basic Block Terminating Operators
1072 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1075 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1076 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1077 %token <BinaryOpVal> SHL LSHR ASHR
1079 %token <OtherOpVal> ICMP FCMP
1080 %type <IPredicate> IPredicates
1081 %type <FPredicate> FPredicates
1082 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1083 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1085 // Memory Instructions
1086 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1089 %type <CastOpVal> CastOps
1090 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1091 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1094 %token <OtherOpVal> PHI_TOK SELECT VAARG
1095 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1097 // Function Attributes
1098 %token NORETURN INREG SRET NOUNWIND
1100 // Visibility Styles
1101 %token DEFAULT HIDDEN
1107 // Operations that are notably excluded from this list include:
1108 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1110 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1111 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1112 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1113 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1116 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1117 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1118 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1119 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1120 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1124 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1125 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1126 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1127 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1128 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1129 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1130 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1131 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1132 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1135 // These are some types that allow classification if we only want a particular
1136 // thing... for example, only a signed, unsigned, or integral type.
1138 FPType : FLOAT | DOUBLE;
1140 LocalName : LOCALVAR | STRINGCONSTANT;
1141 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1143 /// OptLocalAssign - Value producing statements have an optional assignment
1145 OptLocalAssign : LocalName '=' {
1154 GlobalName : GLOBALVAR | ATSTRINGCONSTANT;
1156 OptGlobalAssign : GlobalAssign
1162 GlobalAssign : GlobalName '=' {
1168 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1169 | WEAK { $$ = GlobalValue::WeakLinkage; }
1170 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1171 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1172 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1176 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1177 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1178 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1182 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1183 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1184 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1187 FunctionDeclareLinkage
1188 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1189 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1190 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1193 FunctionDefineLinkage
1194 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1195 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1196 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1197 | WEAK { $$ = GlobalValue::WeakLinkage; }
1198 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1202 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1203 | WEAK { $$ = GlobalValue::WeakLinkage; }
1204 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1207 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1208 CCC_TOK { $$ = CallingConv::C; } |
1209 FASTCC_TOK { $$ = CallingConv::Fast; } |
1210 COLDCC_TOK { $$ = CallingConv::Cold; } |
1211 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1212 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1214 if ((unsigned)$2 != $2)
1215 GEN_ERROR("Calling conv too large");
1220 ParamAttr : ZEXT { $$ = ParamAttr::ZExt; }
1221 | SEXT { $$ = ParamAttr::SExt; }
1222 | INREG { $$ = ParamAttr::InReg; }
1223 | SRET { $$ = ParamAttr::StructRet; }
1226 OptParamAttrs : /* empty */ { $$ = ParamAttr::None; }
1227 | OptParamAttrs ParamAttr {
1232 FuncAttr : NORETURN { $$ = ParamAttr::NoReturn; }
1233 | NOUNWIND { $$ = ParamAttr::NoUnwind; }
1237 OptFuncAttrs : /* empty */ { $$ = ParamAttr::None; }
1238 | OptFuncAttrs FuncAttr {
1243 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1244 // a comma before it.
1245 OptAlign : /*empty*/ { $$ = 0; } |
1248 if ($$ != 0 && !isPowerOf2_32($$))
1249 GEN_ERROR("Alignment must be a power of two");
1252 OptCAlign : /*empty*/ { $$ = 0; } |
1253 ',' ALIGN EUINT64VAL {
1255 if ($$ != 0 && !isPowerOf2_32($$))
1256 GEN_ERROR("Alignment must be a power of two");
1261 SectionString : SECTION STRINGCONSTANT {
1262 for (unsigned i = 0, e = strlen($2); i != e; ++i)
1263 if ($2[i] == '"' || $2[i] == '\\')
1264 GEN_ERROR("Invalid character in section name");
1269 OptSection : /*empty*/ { $$ = 0; } |
1270 SectionString { $$ = $1; };
1272 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1273 // is set to be the global we are processing.
1275 GlobalVarAttributes : /* empty */ {} |
1276 ',' GlobalVarAttribute GlobalVarAttributes {};
1277 GlobalVarAttribute : SectionString {
1278 CurGV->setSection($1);
1282 | ALIGN EUINT64VAL {
1283 if ($2 != 0 && !isPowerOf2_32($2))
1284 GEN_ERROR("Alignment must be a power of two");
1285 CurGV->setAlignment($2);
1289 //===----------------------------------------------------------------------===//
1290 // Types includes all predefined types... except void, because it can only be
1291 // used in specific contexts (function returning void for example).
1293 // Derived types are added later...
1295 PrimType : INTTYPE | FLOAT | DOUBLE | LABEL ;
1299 $$ = new PATypeHolder(OpaqueType::get());
1303 $$ = new PATypeHolder($1);
1306 | Types '*' { // Pointer type?
1307 if (*$1 == Type::LabelTy)
1308 GEN_ERROR("Cannot form a pointer to a basic block");
1309 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1)));
1313 | SymbolicValueRef { // Named types are also simple types...
1314 const Type* tmp = getTypeVal($1);
1316 $$ = new PATypeHolder(tmp);
1318 | '\\' EUINT64VAL { // Type UpReference
1319 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1320 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1321 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1322 $$ = new PATypeHolder(OT);
1323 UR_OUT("New Upreference!\n");
1326 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1327 std::vector<const Type*> Params;
1328 ParamAttrsVector Attrs;
1329 if ($5 != ParamAttr::None) {
1330 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1334 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1335 for (; I != E; ++I, ++index) {
1336 const Type *Ty = I->Ty->get();
1337 Params.push_back(Ty);
1338 if (Ty != Type::VoidTy)
1339 if (I->Attrs != ParamAttr::None) {
1340 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1344 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1345 if (isVarArg) Params.pop_back();
1347 ParamAttrsList *ActualAttrs = 0;
1349 ActualAttrs = ParamAttrsList::get(Attrs);
1350 FunctionType *FT = FunctionType::get(*$1, Params, isVarArg, ActualAttrs);
1351 delete $3; // Delete the argument list
1352 delete $1; // Delete the return type handle
1353 $$ = new PATypeHolder(HandleUpRefs(FT));
1356 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1357 std::vector<const Type*> Params;
1358 ParamAttrsVector Attrs;
1359 if ($5 != ParamAttr::None) {
1360 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1363 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1365 for ( ; I != E; ++I, ++index) {
1366 const Type* Ty = I->Ty->get();
1367 Params.push_back(Ty);
1368 if (Ty != Type::VoidTy)
1369 if (I->Attrs != ParamAttr::None) {
1370 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1374 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1375 if (isVarArg) Params.pop_back();
1377 ParamAttrsList *ActualAttrs = 0;
1379 ActualAttrs = ParamAttrsList::get(Attrs);
1381 FunctionType *FT = FunctionType::get($1, Params, isVarArg, ActualAttrs);
1382 delete $3; // Delete the argument list
1383 $$ = new PATypeHolder(HandleUpRefs(FT));
1387 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1388 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
1392 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1393 const llvm::Type* ElemTy = $4->get();
1394 if ((unsigned)$2 != $2)
1395 GEN_ERROR("Unsigned result not equal to signed result");
1396 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1397 GEN_ERROR("Element type of a VectorType must be primitive");
1398 if (!isPowerOf2_32($2))
1399 GEN_ERROR("Vector length should be a power of 2");
1400 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1404 | '{' TypeListI '}' { // Structure type?
1405 std::vector<const Type*> Elements;
1406 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1407 E = $2->end(); I != E; ++I)
1408 Elements.push_back(*I);
1410 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1414 | '{' '}' { // Empty structure type?
1415 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1418 | '<' '{' TypeListI '}' '>' {
1419 std::vector<const Type*> Elements;
1420 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1421 E = $3->end(); I != E; ++I)
1422 Elements.push_back(*I);
1424 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1428 | '<' '{' '}' '>' { // Empty structure type?
1429 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1435 : Types OptParamAttrs {
1443 if (!UpRefs.empty())
1444 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1445 if (!(*$1)->isFirstClassType())
1446 GEN_ERROR("LLVM functions cannot return aggregate types");
1450 $$ = new PATypeHolder(Type::VoidTy);
1454 ArgTypeList : ArgType {
1455 $$ = new TypeWithAttrsList();
1459 | ArgTypeList ',' ArgType {
1460 ($$=$1)->push_back($3);
1467 | ArgTypeList ',' DOTDOTDOT {
1469 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1470 TWA.Ty = new PATypeHolder(Type::VoidTy);
1475 $$ = new TypeWithAttrsList;
1476 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1477 TWA.Ty = new PATypeHolder(Type::VoidTy);
1482 $$ = new TypeWithAttrsList();
1486 // TypeList - Used for struct declarations and as a basis for function type
1487 // declaration type lists
1490 $$ = new std::list<PATypeHolder>();
1495 | TypeListI ',' Types {
1496 ($$=$1)->push_back(*$3);
1501 // ConstVal - The various declarations that go into the constant pool. This
1502 // production is used ONLY to represent constants that show up AFTER a 'const',
1503 // 'constant' or 'global' token at global scope. Constants that can be inlined
1504 // into other expressions (such as integers and constexprs) are handled by the
1505 // ResolvedVal, ValueRef and ConstValueRef productions.
1507 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1508 if (!UpRefs.empty())
1509 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1510 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1512 GEN_ERROR("Cannot make array constant with type: '" +
1513 (*$1)->getDescription() + "'");
1514 const Type *ETy = ATy->getElementType();
1515 int NumElements = ATy->getNumElements();
1517 // Verify that we have the correct size...
1518 if (NumElements != -1 && NumElements != (int)$3->size())
1519 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1520 utostr($3->size()) + " arguments, but has size of " +
1521 itostr(NumElements) + "");
1523 // Verify all elements are correct type!
1524 for (unsigned i = 0; i < $3->size(); i++) {
1525 if (ETy != (*$3)[i]->getType())
1526 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1527 ETy->getDescription() +"' as required!\nIt is of type '"+
1528 (*$3)[i]->getType()->getDescription() + "'.");
1531 $$ = ConstantArray::get(ATy, *$3);
1532 delete $1; delete $3;
1536 if (!UpRefs.empty())
1537 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1538 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1540 GEN_ERROR("Cannot make array constant with type: '" +
1541 (*$1)->getDescription() + "'");
1543 int NumElements = ATy->getNumElements();
1544 if (NumElements != -1 && NumElements != 0)
1545 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1546 " arguments, but has size of " + itostr(NumElements) +"");
1547 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1551 | Types 'c' STRINGCONSTANT {
1552 if (!UpRefs.empty())
1553 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1554 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1556 GEN_ERROR("Cannot make array constant with type: '" +
1557 (*$1)->getDescription() + "'");
1559 int NumElements = ATy->getNumElements();
1560 const Type *ETy = ATy->getElementType();
1561 char *EndStr = UnEscapeLexed($3, true);
1562 if (NumElements != -1 && NumElements != (EndStr-$3))
1563 GEN_ERROR("Can't build string constant of size " +
1564 itostr((int)(EndStr-$3)) +
1565 " when array has size " + itostr(NumElements) + "");
1566 std::vector<Constant*> Vals;
1567 if (ETy == Type::Int8Ty) {
1568 for (unsigned char *C = (unsigned char *)$3;
1569 C != (unsigned char*)EndStr; ++C)
1570 Vals.push_back(ConstantInt::get(ETy, *C));
1573 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1576 $$ = ConstantArray::get(ATy, Vals);
1580 | Types '<' ConstVector '>' { // Nonempty unsized arr
1581 if (!UpRefs.empty())
1582 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1583 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1585 GEN_ERROR("Cannot make packed constant with type: '" +
1586 (*$1)->getDescription() + "'");
1587 const Type *ETy = PTy->getElementType();
1588 int NumElements = PTy->getNumElements();
1590 // Verify that we have the correct size...
1591 if (NumElements != -1 && NumElements != (int)$3->size())
1592 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1593 utostr($3->size()) + " arguments, but has size of " +
1594 itostr(NumElements) + "");
1596 // Verify all elements are correct type!
1597 for (unsigned i = 0; i < $3->size(); i++) {
1598 if (ETy != (*$3)[i]->getType())
1599 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1600 ETy->getDescription() +"' as required!\nIt is of type '"+
1601 (*$3)[i]->getType()->getDescription() + "'.");
1604 $$ = ConstantVector::get(PTy, *$3);
1605 delete $1; delete $3;
1608 | Types '{' ConstVector '}' {
1609 const StructType *STy = dyn_cast<StructType>($1->get());
1611 GEN_ERROR("Cannot make struct constant with type: '" +
1612 (*$1)->getDescription() + "'");
1614 if ($3->size() != STy->getNumContainedTypes())
1615 GEN_ERROR("Illegal number of initializers for structure type");
1617 // Check to ensure that constants are compatible with the type initializer!
1618 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1619 if ((*$3)[i]->getType() != STy->getElementType(i))
1620 GEN_ERROR("Expected type '" +
1621 STy->getElementType(i)->getDescription() +
1622 "' for element #" + utostr(i) +
1623 " of structure initializer");
1625 // Check to ensure that Type is not packed
1626 if (STy->isPacked())
1627 GEN_ERROR("Unpacked Initializer to vector type '" +
1628 STy->getDescription() + "'");
1630 $$ = ConstantStruct::get(STy, *$3);
1631 delete $1; delete $3;
1635 if (!UpRefs.empty())
1636 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1637 const StructType *STy = dyn_cast<StructType>($1->get());
1639 GEN_ERROR("Cannot make struct constant with type: '" +
1640 (*$1)->getDescription() + "'");
1642 if (STy->getNumContainedTypes() != 0)
1643 GEN_ERROR("Illegal number of initializers for structure type");
1645 // Check to ensure that Type is not packed
1646 if (STy->isPacked())
1647 GEN_ERROR("Unpacked Initializer to vector type '" +
1648 STy->getDescription() + "'");
1650 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1654 | Types '<' '{' ConstVector '}' '>' {
1655 const StructType *STy = dyn_cast<StructType>($1->get());
1657 GEN_ERROR("Cannot make struct constant with type: '" +
1658 (*$1)->getDescription() + "'");
1660 if ($4->size() != STy->getNumContainedTypes())
1661 GEN_ERROR("Illegal number of initializers for structure type");
1663 // Check to ensure that constants are compatible with the type initializer!
1664 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1665 if ((*$4)[i]->getType() != STy->getElementType(i))
1666 GEN_ERROR("Expected type '" +
1667 STy->getElementType(i)->getDescription() +
1668 "' for element #" + utostr(i) +
1669 " of structure initializer");
1671 // Check to ensure that Type is packed
1672 if (!STy->isPacked())
1673 GEN_ERROR("Vector initializer to non-vector type '" +
1674 STy->getDescription() + "'");
1676 $$ = ConstantStruct::get(STy, *$4);
1677 delete $1; delete $4;
1680 | Types '<' '{' '}' '>' {
1681 if (!UpRefs.empty())
1682 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1683 const StructType *STy = dyn_cast<StructType>($1->get());
1685 GEN_ERROR("Cannot make struct constant with type: '" +
1686 (*$1)->getDescription() + "'");
1688 if (STy->getNumContainedTypes() != 0)
1689 GEN_ERROR("Illegal number of initializers for structure type");
1691 // Check to ensure that Type is packed
1692 if (!STy->isPacked())
1693 GEN_ERROR("Vector initializer to non-vector type '" +
1694 STy->getDescription() + "'");
1696 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1701 if (!UpRefs.empty())
1702 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1703 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1705 GEN_ERROR("Cannot make null pointer constant with type: '" +
1706 (*$1)->getDescription() + "'");
1708 $$ = ConstantPointerNull::get(PTy);
1713 if (!UpRefs.empty())
1714 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1715 $$ = UndefValue::get($1->get());
1719 | Types SymbolicValueRef {
1720 if (!UpRefs.empty())
1721 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1722 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1724 GEN_ERROR("Global const reference must be a pointer type");
1726 // ConstExprs can exist in the body of a function, thus creating
1727 // GlobalValues whenever they refer to a variable. Because we are in
1728 // the context of a function, getExistingVal will search the functions
1729 // symbol table instead of the module symbol table for the global symbol,
1730 // which throws things all off. To get around this, we just tell
1731 // getExistingVal that we are at global scope here.
1733 Function *SavedCurFn = CurFun.CurrentFunction;
1734 CurFun.CurrentFunction = 0;
1736 Value *V = getExistingVal(Ty, $2);
1739 CurFun.CurrentFunction = SavedCurFn;
1741 // If this is an initializer for a constant pointer, which is referencing a
1742 // (currently) undefined variable, create a stub now that shall be replaced
1743 // in the future with the right type of variable.
1746 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1747 const PointerType *PT = cast<PointerType>(Ty);
1749 // First check to see if the forward references value is already created!
1750 PerModuleInfo::GlobalRefsType::iterator I =
1751 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1753 if (I != CurModule.GlobalRefs.end()) {
1754 V = I->second; // Placeholder already exists, use it...
1758 if ($2.Type == ValID::GlobalName)
1760 else if ($2.Type != ValID::GlobalID)
1761 GEN_ERROR("Invalid reference to global");
1763 // Create the forward referenced global.
1765 if (const FunctionType *FTy =
1766 dyn_cast<FunctionType>(PT->getElementType())) {
1767 GV = new Function(FTy, GlobalValue::ExternalWeakLinkage, Name,
1768 CurModule.CurrentModule);
1770 GV = new GlobalVariable(PT->getElementType(), false,
1771 GlobalValue::ExternalWeakLinkage, 0,
1772 Name, CurModule.CurrentModule);
1775 // Keep track of the fact that we have a forward ref to recycle it
1776 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1781 $$ = cast<GlobalValue>(V);
1782 delete $1; // Free the type handle
1786 if (!UpRefs.empty())
1787 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1788 if ($1->get() != $2->getType())
1789 GEN_ERROR("Mismatched types for constant expression: " +
1790 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1795 | Types ZEROINITIALIZER {
1796 if (!UpRefs.empty())
1797 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1798 const Type *Ty = $1->get();
1799 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1800 GEN_ERROR("Cannot create a null initialized value of this type");
1801 $$ = Constant::getNullValue(Ty);
1805 | IntType ESINT64VAL { // integral constants
1806 if (!ConstantInt::isValueValidForType($1, $2))
1807 GEN_ERROR("Constant value doesn't fit in type");
1808 $$ = ConstantInt::get($1, $2, true);
1811 | IntType ESAPINTVAL { // arbitrary precision integer constants
1812 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1813 if ($2->getBitWidth() > BitWidth) {
1814 GEN_ERROR("Constant value does not fit in type");
1816 $2->sextOrTrunc(BitWidth);
1817 $$ = ConstantInt::get(*$2);
1821 | IntType EUINT64VAL { // integral constants
1822 if (!ConstantInt::isValueValidForType($1, $2))
1823 GEN_ERROR("Constant value doesn't fit in type");
1824 $$ = ConstantInt::get($1, $2, false);
1827 | IntType EUAPINTVAL { // arbitrary precision integer constants
1828 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1829 if ($2->getBitWidth() > BitWidth) {
1830 GEN_ERROR("Constant value does not fit in type");
1832 $2->zextOrTrunc(BitWidth);
1833 $$ = ConstantInt::get(*$2);
1837 | INTTYPE TRUETOK { // Boolean constants
1838 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1839 $$ = ConstantInt::getTrue();
1842 | INTTYPE FALSETOK { // Boolean constants
1843 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1844 $$ = ConstantInt::getFalse();
1847 | FPType FPVAL { // Float & Double constants
1848 if (!ConstantFP::isValueValidForType($1, $2))
1849 GEN_ERROR("Floating point constant invalid for type");
1850 $$ = ConstantFP::get($1, $2);
1855 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1856 if (!UpRefs.empty())
1857 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1859 const Type *DestTy = $5->get();
1860 if (!CastInst::castIsValid($1, $3, DestTy))
1861 GEN_ERROR("invalid cast opcode for cast from '" +
1862 Val->getType()->getDescription() + "' to '" +
1863 DestTy->getDescription() + "'");
1864 $$ = ConstantExpr::getCast($1, $3, DestTy);
1867 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1868 if (!isa<PointerType>($3->getType()))
1869 GEN_ERROR("GetElementPtr requires a pointer operand");
1872 GetElementPtrInst::getIndexedType($3->getType(), &(*$4)[0], $4->size(),
1875 GEN_ERROR("Index list invalid for constant getelementptr");
1877 SmallVector<Constant*, 8> IdxVec;
1878 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1879 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1880 IdxVec.push_back(C);
1882 GEN_ERROR("Indices to constant getelementptr must be constants");
1886 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1889 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1890 if ($3->getType() != Type::Int1Ty)
1891 GEN_ERROR("Select condition must be of boolean type");
1892 if ($5->getType() != $7->getType())
1893 GEN_ERROR("Select operand types must match");
1894 $$ = ConstantExpr::getSelect($3, $5, $7);
1897 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1898 if ($3->getType() != $5->getType())
1899 GEN_ERROR("Binary operator types must match");
1901 $$ = ConstantExpr::get($1, $3, $5);
1903 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1904 if ($3->getType() != $5->getType())
1905 GEN_ERROR("Logical operator types must match");
1906 if (!$3->getType()->isInteger()) {
1907 if (Instruction::isShift($1) || !isa<VectorType>($3->getType()) ||
1908 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1909 GEN_ERROR("Logical operator requires integral operands");
1911 $$ = ConstantExpr::get($1, $3, $5);
1914 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1915 if ($4->getType() != $6->getType())
1916 GEN_ERROR("icmp operand types must match");
1917 $$ = ConstantExpr::getICmp($2, $4, $6);
1919 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1920 if ($4->getType() != $6->getType())
1921 GEN_ERROR("fcmp operand types must match");
1922 $$ = ConstantExpr::getFCmp($2, $4, $6);
1924 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1925 if (!ExtractElementInst::isValidOperands($3, $5))
1926 GEN_ERROR("Invalid extractelement operands");
1927 $$ = ConstantExpr::getExtractElement($3, $5);
1930 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1931 if (!InsertElementInst::isValidOperands($3, $5, $7))
1932 GEN_ERROR("Invalid insertelement operands");
1933 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1936 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1937 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
1938 GEN_ERROR("Invalid shufflevector operands");
1939 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
1944 // ConstVector - A list of comma separated constants.
1945 ConstVector : ConstVector ',' ConstVal {
1946 ($$ = $1)->push_back($3);
1950 $$ = new std::vector<Constant*>();
1956 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
1957 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
1960 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
1962 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
1963 AliaseeRef : ResultTypes SymbolicValueRef {
1964 const Type* VTy = $1->get();
1965 Value *V = getVal(VTy, $2);
1966 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
1968 GEN_ERROR("Aliases can be created only to global values");
1974 | BITCAST '(' AliaseeRef TO Types ')' {
1976 const Type *DestTy = $5->get();
1977 if (!CastInst::castIsValid($1, $3, DestTy))
1978 GEN_ERROR("invalid cast opcode for cast from '" +
1979 Val->getType()->getDescription() + "' to '" +
1980 DestTy->getDescription() + "'");
1982 $$ = ConstantExpr::getCast($1, $3, DestTy);
1987 //===----------------------------------------------------------------------===//
1988 // Rules to match Modules
1989 //===----------------------------------------------------------------------===//
1991 // Module rule: Capture the result of parsing the whole file into a result
1996 $$ = ParserResult = CurModule.CurrentModule;
1997 CurModule.ModuleDone();
2001 $$ = ParserResult = CurModule.CurrentModule;
2002 CurModule.ModuleDone();
2009 | DefinitionList Definition
2013 : DEFINE { CurFun.isDeclare = false; } Function {
2014 CurFun.FunctionDone();
2017 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2020 | MODULE ASM_TOK AsmBlock {
2023 | OptLocalAssign TYPE Types {
2024 if (!UpRefs.empty())
2025 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2026 // Eagerly resolve types. This is not an optimization, this is a
2027 // requirement that is due to the fact that we could have this:
2029 // %list = type { %list * }
2030 // %list = type { %list * } ; repeated type decl
2032 // If types are not resolved eagerly, then the two types will not be
2033 // determined to be the same type!
2035 ResolveTypeTo($1, *$3);
2037 if (!setTypeName(*$3, $1) && !$1) {
2039 // If this is a named type that is not a redefinition, add it to the slot
2041 CurModule.Types.push_back(*$3);
2047 | OptLocalAssign TYPE VOID {
2048 ResolveTypeTo($1, $3);
2050 if (!setTypeName($3, $1) && !$1) {
2052 // If this is a named type that is not a redefinition, add it to the slot
2054 CurModule.Types.push_back($3);
2058 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal {
2059 /* "Externally Visible" Linkage */
2061 GEN_ERROR("Global value initializer is not a constant");
2062 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2063 $2, $4, $5->getType(), $5, $3);
2065 } GlobalVarAttributes {
2068 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2071 GEN_ERROR("Global value initializer is not a constant");
2072 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4);
2074 } GlobalVarAttributes {
2077 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2079 if (!UpRefs.empty())
2080 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2081 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4);
2084 } GlobalVarAttributes {
2088 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2089 std::string Name($1);
2091 GEN_ERROR("Alias name cannot be empty");
2093 Constant* Aliasee = $5;
2095 GEN_ERROR(std::string("Invalid aliasee for alias: ") + $1);
2097 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2098 CurModule.CurrentModule);
2099 GA->setVisibility($2);
2100 InsertValue(GA, CurModule.Values);
2103 | TARGET TargetDefinition {
2106 | DEPLIBS '=' LibrariesDefinition {
2112 AsmBlock : STRINGCONSTANT {
2113 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2114 char *EndStr = UnEscapeLexed($1, true);
2115 std::string NewAsm($1, EndStr);
2118 if (AsmSoFar.empty())
2119 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2121 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2125 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2126 CurModule.CurrentModule->setTargetTriple($3);
2129 | DATALAYOUT '=' STRINGCONSTANT {
2130 CurModule.CurrentModule->setDataLayout($3);
2134 LibrariesDefinition : '[' LibList ']';
2136 LibList : LibList ',' STRINGCONSTANT {
2137 CurModule.CurrentModule->addLibrary($3);
2142 CurModule.CurrentModule->addLibrary($1);
2146 | /* empty: end of list */ {
2151 //===----------------------------------------------------------------------===//
2152 // Rules to match Function Headers
2153 //===----------------------------------------------------------------------===//
2155 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2156 if (!UpRefs.empty())
2157 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2158 if (*$3 == Type::VoidTy)
2159 GEN_ERROR("void typed arguments are invalid");
2160 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2165 | Types OptParamAttrs OptLocalName {
2166 if (!UpRefs.empty())
2167 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2168 if (*$1 == Type::VoidTy)
2169 GEN_ERROR("void typed arguments are invalid");
2170 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2171 $$ = new ArgListType;
2176 ArgList : ArgListH {
2180 | ArgListH ',' DOTDOTDOT {
2182 struct ArgListEntry E;
2183 E.Ty = new PATypeHolder(Type::VoidTy);
2185 E.Attrs = ParamAttr::None;
2190 $$ = new ArgListType;
2191 struct ArgListEntry E;
2192 E.Ty = new PATypeHolder(Type::VoidTy);
2194 E.Attrs = ParamAttr::None;
2203 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2204 OptFuncAttrs OptSection OptAlign {
2206 std::string FunctionName($3);
2207 free($3); // Free strdup'd memory!
2209 // Check the function result for abstractness if this is a define. We should
2210 // have no abstract types at this point
2211 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2212 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2214 std::vector<const Type*> ParamTypeList;
2215 ParamAttrsVector Attrs;
2216 if ($7 != ParamAttr::None) {
2217 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $7;
2218 Attrs.push_back(PAWI);
2220 if ($5) { // If there are arguments...
2222 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I, ++index) {
2223 const Type* Ty = I->Ty->get();
2224 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2225 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2226 ParamTypeList.push_back(Ty);
2227 if (Ty != Type::VoidTy)
2228 if (I->Attrs != ParamAttr::None) {
2229 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2230 Attrs.push_back(PAWI);
2235 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2236 if (isVarArg) ParamTypeList.pop_back();
2238 ParamAttrsList *PAL = 0;
2240 PAL = ParamAttrsList::get(Attrs);
2242 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg, PAL);
2243 const PointerType *PFT = PointerType::get(FT);
2247 if (!FunctionName.empty()) {
2248 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2250 ID = ValID::createGlobalID(CurModule.Values.size());
2254 // See if this function was forward referenced. If so, recycle the object.
2255 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2256 // Move the function to the end of the list, from whereever it was
2257 // previously inserted.
2258 Fn = cast<Function>(FWRef);
2259 CurModule.CurrentModule->getFunctionList().remove(Fn);
2260 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2261 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2262 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2263 if (Fn->getFunctionType() != FT) {
2264 // The existing function doesn't have the same type. This is an overload
2266 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2267 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2268 // Neither the existing or the current function is a declaration and they
2269 // have the same name and same type. Clearly this is a redefinition.
2270 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2271 } if (Fn->isDeclaration()) {
2272 // Make sure to strip off any argument names so we can't get conflicts.
2273 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2277 } else { // Not already defined?
2278 Fn = new Function(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2279 CurModule.CurrentModule);
2281 InsertValue(Fn, CurModule.Values);
2284 CurFun.FunctionStart(Fn);
2286 if (CurFun.isDeclare) {
2287 // If we have declaration, always overwrite linkage. This will allow us to
2288 // correctly handle cases, when pointer to function is passed as argument to
2289 // another function.
2290 Fn->setLinkage(CurFun.Linkage);
2291 Fn->setVisibility(CurFun.Visibility);
2293 Fn->setCallingConv($1);
2294 Fn->setAlignment($9);
2300 // Add all of the arguments we parsed to the function...
2301 if ($5) { // Is null if empty...
2302 if (isVarArg) { // Nuke the last entry
2303 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2304 "Not a varargs marker!");
2305 delete $5->back().Ty;
2306 $5->pop_back(); // Delete the last entry
2308 Function::arg_iterator ArgIt = Fn->arg_begin();
2309 Function::arg_iterator ArgEnd = Fn->arg_end();
2311 for (ArgListType::iterator I = $5->begin();
2312 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2313 delete I->Ty; // Delete the typeholder...
2314 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2320 delete $5; // We're now done with the argument list
2325 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2327 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2328 $$ = CurFun.CurrentFunction;
2330 // Make sure that we keep track of the linkage type even if there was a
2331 // previous "declare".
2333 $$->setVisibility($2);
2336 END : ENDTOK | '}'; // Allow end of '}' to end a function
2338 Function : BasicBlockList END {
2343 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2344 CurFun.CurrentFunction->setLinkage($1);
2345 CurFun.CurrentFunction->setVisibility($2);
2346 $$ = CurFun.CurrentFunction;
2347 CurFun.FunctionDone();
2351 //===----------------------------------------------------------------------===//
2352 // Rules to match Basic Blocks
2353 //===----------------------------------------------------------------------===//
2355 OptSideEffect : /* empty */ {
2364 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2365 $$ = ValID::create($1);
2369 $$ = ValID::create($1);
2372 | FPVAL { // Perhaps it's an FP constant?
2373 $$ = ValID::create($1);
2377 $$ = ValID::create(ConstantInt::getTrue());
2381 $$ = ValID::create(ConstantInt::getFalse());
2385 $$ = ValID::createNull();
2389 $$ = ValID::createUndef();
2392 | ZEROINITIALIZER { // A vector zero constant.
2393 $$ = ValID::createZeroInit();
2396 | '<' ConstVector '>' { // Nonempty unsized packed vector
2397 const Type *ETy = (*$2)[0]->getType();
2398 int NumElements = $2->size();
2400 VectorType* pt = VectorType::get(ETy, NumElements);
2401 PATypeHolder* PTy = new PATypeHolder(
2409 // Verify all elements are correct type!
2410 for (unsigned i = 0; i < $2->size(); i++) {
2411 if (ETy != (*$2)[i]->getType())
2412 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2413 ETy->getDescription() +"' as required!\nIt is of type '" +
2414 (*$2)[i]->getType()->getDescription() + "'.");
2417 $$ = ValID::create(ConstantVector::get(pt, *$2));
2418 delete PTy; delete $2;
2422 $$ = ValID::create($1);
2425 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2426 char *End = UnEscapeLexed($3, true);
2427 std::string AsmStr = std::string($3, End);
2428 End = UnEscapeLexed($5, true);
2429 std::string Constraints = std::string($5, End);
2430 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
2436 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2439 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2440 $$ = ValID::createLocalID($1);
2444 $$ = ValID::createGlobalID($1);
2447 | LocalName { // Is it a named reference...?
2448 $$ = ValID::createLocalName($1);
2451 | GlobalName { // Is it a named reference...?
2452 $$ = ValID::createGlobalName($1);
2456 // ValueRef - A reference to a definition... either constant or symbolic
2457 ValueRef : SymbolicValueRef | ConstValueRef;
2460 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2461 // type immediately preceeds the value reference, and allows complex constant
2462 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2463 ResolvedVal : Types ValueRef {
2464 if (!UpRefs.empty())
2465 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2466 $$ = getVal(*$1, $2);
2472 BasicBlockList : BasicBlockList BasicBlock {
2476 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2482 // Basic blocks are terminated by branching instructions:
2483 // br, br/cc, switch, ret
2485 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2486 setValueName($3, $2);
2489 $1->getInstList().push_back($3);
2494 InstructionList : InstructionList Inst {
2495 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2496 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2497 if (CI2->getParent() == 0)
2498 $1->getInstList().push_back(CI2);
2499 $1->getInstList().push_back($2);
2503 | /* empty */ { // Empty space between instruction lists
2504 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2507 | LABELSTR { // Labelled (named) basic block
2508 $$ = defineBBVal(ValID::createLocalName($1));
2512 BBTerminatorInst : RET ResolvedVal { // Return with a result...
2513 $$ = new ReturnInst($2);
2516 | RET VOID { // Return with no result...
2517 $$ = new ReturnInst();
2520 | BR LABEL ValueRef { // Unconditional Branch...
2521 BasicBlock* tmpBB = getBBVal($3);
2523 $$ = new BranchInst(tmpBB);
2524 } // Conditional Branch...
2525 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2526 assert(cast<IntegerType>($2)->getBitWidth() == 1 && "Not Bool?");
2527 BasicBlock* tmpBBA = getBBVal($6);
2529 BasicBlock* tmpBBB = getBBVal($9);
2531 Value* tmpVal = getVal(Type::Int1Ty, $3);
2533 $$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
2535 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2536 Value* tmpVal = getVal($2, $3);
2538 BasicBlock* tmpBB = getBBVal($6);
2540 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
2543 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2545 for (; I != E; ++I) {
2546 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2547 S->addCase(CI, I->second);
2549 GEN_ERROR("Switch case is constant, but not a simple integer");
2554 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2555 Value* tmpVal = getVal($2, $3);
2557 BasicBlock* tmpBB = getBBVal($6);
2559 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
2563 | INVOKE OptCallingConv ResultTypes ValueRef '(' ValueRefList ')' OptFuncAttrs
2564 TO LABEL ValueRef UNWIND LABEL ValueRef {
2566 // Handle the short syntax
2567 const PointerType *PFTy = 0;
2568 const FunctionType *Ty = 0;
2569 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2570 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2571 // Pull out the types of all of the arguments...
2572 std::vector<const Type*> ParamTypes;
2573 ParamAttrsVector Attrs;
2574 if ($8 != ParamAttr::None) {
2575 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = 8;
2576 Attrs.push_back(PAWI);
2578 ValueRefList::iterator I = $6->begin(), E = $6->end();
2580 for (; I != E; ++I, ++index) {
2581 const Type *Ty = I->Val->getType();
2582 if (Ty == Type::VoidTy)
2583 GEN_ERROR("Short call syntax cannot be used with varargs");
2584 ParamTypes.push_back(Ty);
2585 if (I->Attrs != ParamAttr::None) {
2586 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2587 Attrs.push_back(PAWI);
2591 ParamAttrsList *PAL = 0;
2593 PAL = ParamAttrsList::get(Attrs);
2594 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2595 PFTy = PointerType::get(Ty);
2600 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2602 BasicBlock *Normal = getBBVal($11);
2604 BasicBlock *Except = getBBVal($14);
2607 // Check the arguments
2609 if ($6->empty()) { // Has no arguments?
2610 // Make sure no arguments is a good thing!
2611 if (Ty->getNumParams() != 0)
2612 GEN_ERROR("No arguments passed to a function that "
2613 "expects arguments");
2614 } else { // Has arguments?
2615 // Loop through FunctionType's arguments and ensure they are specified
2617 FunctionType::param_iterator I = Ty->param_begin();
2618 FunctionType::param_iterator E = Ty->param_end();
2619 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2621 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2622 if (ArgI->Val->getType() != *I)
2623 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2624 (*I)->getDescription() + "'");
2625 Args.push_back(ArgI->Val);
2628 if (Ty->isVarArg()) {
2630 for (; ArgI != ArgE; ++ArgI)
2631 Args.push_back(ArgI->Val); // push the remaining varargs
2632 } else if (I != E || ArgI != ArgE)
2633 GEN_ERROR("Invalid number of parameters detected");
2636 // Create the InvokeInst
2637 InvokeInst *II = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
2638 II->setCallingConv($2);
2644 $$ = new UnwindInst();
2648 $$ = new UnreachableInst();
2654 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2656 Constant *V = cast<Constant>(getExistingVal($2, $3));
2659 GEN_ERROR("May only switch on a constant pool value");
2661 BasicBlock* tmpBB = getBBVal($6);
2663 $$->push_back(std::make_pair(V, tmpBB));
2665 | IntType ConstValueRef ',' LABEL ValueRef {
2666 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2667 Constant *V = cast<Constant>(getExistingVal($1, $2));
2671 GEN_ERROR("May only switch on a constant pool value");
2673 BasicBlock* tmpBB = getBBVal($5);
2675 $$->push_back(std::make_pair(V, tmpBB));
2678 Inst : OptLocalAssign InstVal {
2679 // Is this definition named?? if so, assign the name...
2680 setValueName($2, $1);
2688 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2689 if (!UpRefs.empty())
2690 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2691 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2692 Value* tmpVal = getVal(*$1, $3);
2694 BasicBlock* tmpBB = getBBVal($5);
2696 $$->push_back(std::make_pair(tmpVal, tmpBB));
2699 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2701 Value* tmpVal = getVal($1->front().first->getType(), $4);
2703 BasicBlock* tmpBB = getBBVal($6);
2705 $1->push_back(std::make_pair(tmpVal, tmpBB));
2709 ValueRefList : Types ValueRef OptParamAttrs {
2710 if (!UpRefs.empty())
2711 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2712 // Used for call and invoke instructions
2713 $$ = new ValueRefList();
2714 ValueRefListEntry E; E.Attrs = $3; E.Val = getVal($1->get(), $2);
2718 | ValueRefList ',' Types ValueRef OptParamAttrs {
2719 if (!UpRefs.empty())
2720 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2722 ValueRefListEntry E; E.Attrs = $5; E.Val = getVal($3->get(), $4);
2727 | /*empty*/ { $$ = new ValueRefList(); };
2729 IndexList // Used for gep instructions and constant expressions
2730 : /*empty*/ { $$ = new std::vector<Value*>(); }
2731 | IndexList ',' ResolvedVal {
2738 OptTailCall : TAIL CALL {
2747 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
2748 if (!UpRefs.empty())
2749 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2750 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
2751 !isa<VectorType>((*$2).get()))
2753 "Arithmetic operator requires integer, FP, or packed operands");
2754 if (isa<VectorType>((*$2).get()) &&
2755 ($1 == Instruction::URem ||
2756 $1 == Instruction::SRem ||
2757 $1 == Instruction::FRem))
2758 GEN_ERROR("Remainder not supported on vector types");
2759 Value* val1 = getVal(*$2, $3);
2761 Value* val2 = getVal(*$2, $5);
2763 $$ = BinaryOperator::create($1, val1, val2);
2765 GEN_ERROR("binary operator returned null");
2768 | LogicalOps Types ValueRef ',' ValueRef {
2769 if (!UpRefs.empty())
2770 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2771 if (!(*$2)->isInteger()) {
2772 if (Instruction::isShift($1) || !isa<VectorType>($2->get()) ||
2773 !cast<VectorType>($2->get())->getElementType()->isInteger())
2774 GEN_ERROR("Logical operator requires integral operands");
2776 Value* tmpVal1 = getVal(*$2, $3);
2778 Value* tmpVal2 = getVal(*$2, $5);
2780 $$ = BinaryOperator::create($1, tmpVal1, tmpVal2);
2782 GEN_ERROR("binary operator returned null");
2785 | ICMP IPredicates Types ValueRef ',' ValueRef {
2786 if (!UpRefs.empty())
2787 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2788 if (isa<VectorType>((*$3).get()))
2789 GEN_ERROR("Vector types not supported by icmp instruction");
2790 Value* tmpVal1 = getVal(*$3, $4);
2792 Value* tmpVal2 = getVal(*$3, $6);
2794 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2796 GEN_ERROR("icmp operator returned null");
2799 | FCMP FPredicates Types ValueRef ',' ValueRef {
2800 if (!UpRefs.empty())
2801 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2802 if (isa<VectorType>((*$3).get()))
2803 GEN_ERROR("Vector types not supported by fcmp instruction");
2804 Value* tmpVal1 = getVal(*$3, $4);
2806 Value* tmpVal2 = getVal(*$3, $6);
2808 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2810 GEN_ERROR("fcmp operator returned null");
2813 | CastOps ResolvedVal TO Types {
2814 if (!UpRefs.empty())
2815 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2817 const Type* DestTy = $4->get();
2818 if (!CastInst::castIsValid($1, Val, DestTy))
2819 GEN_ERROR("invalid cast opcode for cast from '" +
2820 Val->getType()->getDescription() + "' to '" +
2821 DestTy->getDescription() + "'");
2822 $$ = CastInst::create($1, Val, DestTy);
2825 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2826 if ($2->getType() != Type::Int1Ty)
2827 GEN_ERROR("select condition must be boolean");
2828 if ($4->getType() != $6->getType())
2829 GEN_ERROR("select value types should match");
2830 $$ = new SelectInst($2, $4, $6);
2833 | VAARG ResolvedVal ',' Types {
2834 if (!UpRefs.empty())
2835 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2836 $$ = new VAArgInst($2, *$4);
2840 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
2841 if (!ExtractElementInst::isValidOperands($2, $4))
2842 GEN_ERROR("Invalid extractelement operands");
2843 $$ = new ExtractElementInst($2, $4);
2846 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2847 if (!InsertElementInst::isValidOperands($2, $4, $6))
2848 GEN_ERROR("Invalid insertelement operands");
2849 $$ = new InsertElementInst($2, $4, $6);
2852 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2853 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
2854 GEN_ERROR("Invalid shufflevector operands");
2855 $$ = new ShuffleVectorInst($2, $4, $6);
2859 const Type *Ty = $2->front().first->getType();
2860 if (!Ty->isFirstClassType())
2861 GEN_ERROR("PHI node operands must be of first class type");
2862 $$ = new PHINode(Ty);
2863 ((PHINode*)$$)->reserveOperandSpace($2->size());
2864 while ($2->begin() != $2->end()) {
2865 if ($2->front().first->getType() != Ty)
2866 GEN_ERROR("All elements of a PHI node must be of the same type");
2867 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
2870 delete $2; // Free the list...
2873 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ValueRefList ')'
2876 // Handle the short syntax
2877 const PointerType *PFTy = 0;
2878 const FunctionType *Ty = 0;
2879 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2880 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2881 // Pull out the types of all of the arguments...
2882 std::vector<const Type*> ParamTypes;
2883 ParamAttrsVector Attrs;
2884 if ($8 != ParamAttr::None) {
2885 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2886 Attrs.push_back(PAWI);
2889 ValueRefList::iterator I = $6->begin(), E = $6->end();
2890 for (; I != E; ++I, ++index) {
2891 const Type *Ty = I->Val->getType();
2892 if (Ty == Type::VoidTy)
2893 GEN_ERROR("Short call syntax cannot be used with varargs");
2894 ParamTypes.push_back(Ty);
2895 if (I->Attrs != ParamAttr::None) {
2896 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2897 Attrs.push_back(PAWI);
2901 ParamAttrsList *PAL = 0;
2903 PAL = ParamAttrsList::get(Attrs);
2905 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2906 PFTy = PointerType::get(Ty);
2909 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2912 // Check for call to invalid intrinsic to avoid crashing later.
2913 if (Function *theF = dyn_cast<Function>(V)) {
2914 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
2915 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
2916 !theF->getIntrinsicID(true))
2917 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
2918 theF->getName() + "'");
2921 // Check the arguments
2923 if ($6->empty()) { // Has no arguments?
2924 // Make sure no arguments is a good thing!
2925 if (Ty->getNumParams() != 0)
2926 GEN_ERROR("No arguments passed to a function that "
2927 "expects arguments");
2928 } else { // Has arguments?
2929 // Loop through FunctionType's arguments and ensure they are specified
2932 FunctionType::param_iterator I = Ty->param_begin();
2933 FunctionType::param_iterator E = Ty->param_end();
2934 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2936 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2937 if (ArgI->Val->getType() != *I)
2938 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2939 (*I)->getDescription() + "'");
2940 Args.push_back(ArgI->Val);
2942 if (Ty->isVarArg()) {
2944 for (; ArgI != ArgE; ++ArgI)
2945 Args.push_back(ArgI->Val); // push the remaining varargs
2946 } else if (I != E || ArgI != ArgE)
2947 GEN_ERROR("Invalid number of parameters detected");
2949 // Create the call node
2950 CallInst *CI = new CallInst(V, &Args[0], Args.size());
2951 CI->setTailCall($1);
2952 CI->setCallingConv($2);
2963 OptVolatile : VOLATILE {
2974 MemoryInst : MALLOC Types OptCAlign {
2975 if (!UpRefs.empty())
2976 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2977 $$ = new MallocInst(*$2, 0, $3);
2981 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
2982 if (!UpRefs.empty())
2983 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2984 Value* tmpVal = getVal($4, $5);
2986 $$ = new MallocInst(*$2, tmpVal, $6);
2989 | ALLOCA Types OptCAlign {
2990 if (!UpRefs.empty())
2991 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2992 $$ = new AllocaInst(*$2, 0, $3);
2996 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
2997 if (!UpRefs.empty())
2998 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2999 Value* tmpVal = getVal($4, $5);
3001 $$ = new AllocaInst(*$2, tmpVal, $6);
3004 | FREE ResolvedVal {
3005 if (!isa<PointerType>($2->getType()))
3006 GEN_ERROR("Trying to free nonpointer type " +
3007 $2->getType()->getDescription() + "");
3008 $$ = new FreeInst($2);
3012 | OptVolatile LOAD Types ValueRef OptCAlign {
3013 if (!UpRefs.empty())
3014 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3015 if (!isa<PointerType>($3->get()))
3016 GEN_ERROR("Can't load from nonpointer type: " +
3017 (*$3)->getDescription());
3018 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3019 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3020 (*$3)->getDescription());
3021 Value* tmpVal = getVal(*$3, $4);
3023 $$ = new LoadInst(tmpVal, "", $1, $5);
3026 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3027 if (!UpRefs.empty())
3028 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3029 const PointerType *PT = dyn_cast<PointerType>($5->get());
3031 GEN_ERROR("Can't store to a nonpointer type: " +
3032 (*$5)->getDescription());
3033 const Type *ElTy = PT->getElementType();
3034 if (ElTy != $3->getType())
3035 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3036 "' into space of type '" + ElTy->getDescription() + "'");
3038 Value* tmpVal = getVal(*$5, $6);
3040 $$ = new StoreInst($3, tmpVal, $1, $7);
3043 | GETELEMENTPTR Types ValueRef IndexList {
3044 if (!UpRefs.empty())
3045 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3046 if (!isa<PointerType>($2->get()))
3047 GEN_ERROR("getelementptr insn requires pointer operand");
3049 if (!GetElementPtrInst::getIndexedType(*$2, &(*$4)[0], $4->size(), true))
3050 GEN_ERROR("Invalid getelementptr indices for type '" +
3051 (*$2)->getDescription()+ "'");
3052 Value* tmpVal = getVal(*$2, $3);
3054 $$ = new GetElementPtrInst(tmpVal, &(*$4)[0], $4->size());
3062 // common code from the two 'RunVMAsmParser' functions
3063 static Module* RunParser(Module * M) {
3065 llvmAsmlineno = 1; // Reset the current line number...
3066 CurModule.CurrentModule = M;
3071 // Check to make sure the parser succeeded
3074 delete ParserResult;
3078 // Emit an error if there are any unresolved types left.
3079 if (!CurModule.LateResolveTypes.empty()) {
3080 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3081 if (DID.Type == ValID::LocalName) {
3082 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3084 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3087 delete ParserResult;
3091 // Emit an error if there are any unresolved values left.
3092 if (!CurModule.LateResolveValues.empty()) {
3093 Value *V = CurModule.LateResolveValues.back();
3094 std::map<Value*, std::pair<ValID, int> >::iterator I =
3095 CurModule.PlaceHolderInfo.find(V);
3097 if (I != CurModule.PlaceHolderInfo.end()) {
3098 ValID &DID = I->second.first;
3099 if (DID.Type == ValID::LocalName) {
3100 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3102 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3105 delete ParserResult;
3110 // Check to make sure that parsing produced a result
3114 // Reset ParserResult variable while saving its value for the result.
3115 Module *Result = ParserResult;
3121 void llvm::GenerateError(const std::string &message, int LineNo) {
3122 if (LineNo == -1) LineNo = llvmAsmlineno;
3123 // TODO: column number in exception
3125 TheParseError->setError(CurFilename, message, LineNo);
3129 int yyerror(const char *ErrorMsg) {
3131 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3132 + ":" + utostr((unsigned) llvmAsmlineno) + ": ";
3133 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3134 if (yychar != YYEMPTY && yychar != 0)
3135 errMsg += " while reading token: '" + std::string(llvmAsmtext, llvmAsmleng)+
3137 GenerateError(errMsg);