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);
499 V = new Argument(Ty);
502 // Remember where this forward reference came from. FIXME, shouldn't we try
503 // to recycle these things??
504 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
507 if (inFunctionScope())
508 InsertValue(V, CurFun.LateResolveValues);
510 InsertValue(V, CurModule.LateResolveValues);
514 /// defineBBVal - This is a definition of a new basic block with the specified
515 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
516 static BasicBlock *defineBBVal(const ValID &ID) {
517 assert(inFunctionScope() && "Can't get basic block at global scope!");
521 // First, see if this was forward referenced
523 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
524 if (BBI != CurFun.BBForwardRefs.end()) {
526 // The forward declaration could have been inserted anywhere in the
527 // function: insert it into the correct place now.
528 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
529 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
531 // We're about to erase the entry, save the key so we can clean it up.
532 ValID Tmp = BBI->first;
534 // Erase the forward ref from the map as its no longer "forward"
535 CurFun.BBForwardRefs.erase(ID);
537 // The key has been removed from the map but so we don't want to leave
538 // strdup'd memory around so destroy it too.
541 // If its a numbered definition, bump the number and set the BB value.
542 if (ID.Type == ValID::LocalID) {
543 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
551 // We haven't seen this BB before and its first mention is a definition.
552 // Just create it and return it.
553 std::string Name (ID.Type == ValID::LocalName ? ID.Name : "");
554 BB = new BasicBlock(Name, CurFun.CurrentFunction);
555 if (ID.Type == ValID::LocalID) {
556 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
560 ID.destroy(); // Free strdup'd memory
564 /// getBBVal - get an existing BB value or create a forward reference for it.
566 static BasicBlock *getBBVal(const ValID &ID) {
567 assert(inFunctionScope() && "Can't get basic block at global scope!");
571 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
572 if (BBI != CurFun.BBForwardRefs.end()) {
574 } if (ID.Type == ValID::LocalName) {
575 std::string Name = ID.Name;
576 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
578 if (N->getType()->getTypeID() == Type::LabelTyID)
579 BB = cast<BasicBlock>(N);
581 GenerateError("Reference to label '" + Name + "' is actually of type '"+
582 N->getType()->getDescription() + "'");
583 } else if (ID.Type == ValID::LocalID) {
584 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
585 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
586 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
588 GenerateError("Reference to label '%" + utostr(ID.Num) +
589 "' is actually of type '"+
590 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
593 GenerateError("Illegal label reference " + ID.getName());
597 // If its already been defined, return it now.
599 ID.destroy(); // Free strdup'd memory.
603 // Otherwise, this block has not been seen before, create it.
605 if (ID.Type == ValID::LocalName)
607 BB = new BasicBlock(Name, CurFun.CurrentFunction);
609 // Insert it in the forward refs map.
610 CurFun.BBForwardRefs[ID] = BB;
616 //===----------------------------------------------------------------------===//
617 // Code to handle forward references in instructions
618 //===----------------------------------------------------------------------===//
620 // This code handles the late binding needed with statements that reference
621 // values not defined yet... for example, a forward branch, or the PHI node for
624 // This keeps a table (CurFun.LateResolveValues) of all such forward references
625 // and back patchs after we are done.
628 // ResolveDefinitions - If we could not resolve some defs at parsing
629 // time (forward branches, phi functions for loops, etc...) resolve the
633 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
634 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
635 while (!LateResolvers.empty()) {
636 Value *V = LateResolvers.back();
637 LateResolvers.pop_back();
639 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
640 CurModule.PlaceHolderInfo.find(V);
641 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
643 ValID &DID = PHI->second.first;
645 Value *TheRealValue = getExistingVal(V->getType(), DID);
649 V->replaceAllUsesWith(TheRealValue);
651 CurModule.PlaceHolderInfo.erase(PHI);
652 } else if (FutureLateResolvers) {
653 // Functions have their unresolved items forwarded to the module late
655 InsertValue(V, *FutureLateResolvers);
657 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
658 GenerateError("Reference to an invalid definition: '" +DID.getName()+
659 "' of type '" + V->getType()->getDescription() + "'",
663 GenerateError("Reference to an invalid definition: #" +
664 itostr(DID.Num) + " of type '" +
665 V->getType()->getDescription() + "'",
671 LateResolvers.clear();
674 // ResolveTypeTo - A brand new type was just declared. This means that (if
675 // name is not null) things referencing Name can be resolved. Otherwise, things
676 // refering to the number can be resolved. Do this now.
678 static void ResolveTypeTo(char *Name, const Type *ToTy) {
680 if (Name) D = ValID::createLocalName(Name);
681 else D = ValID::createLocalID(CurModule.Types.size());
683 std::map<ValID, PATypeHolder>::iterator I =
684 CurModule.LateResolveTypes.find(D);
685 if (I != CurModule.LateResolveTypes.end()) {
686 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
687 CurModule.LateResolveTypes.erase(I);
691 // setValueName - Set the specified value to the name given. The name may be
692 // null potentially, in which case this is a noop. The string passed in is
693 // assumed to be a malloc'd string buffer, and is free'd by this function.
695 static void setValueName(Value *V, char *NameStr) {
696 if (!NameStr) return;
697 std::string Name(NameStr); // Copy string
698 free(NameStr); // Free old string
700 if (V->getType() == Type::VoidTy) {
701 GenerateError("Can't assign name '" + Name+"' to value with void type");
705 assert(inFunctionScope() && "Must be in function scope!");
706 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
707 if (ST.lookup(Name)) {
708 GenerateError("Redefinition of value '" + Name + "' of type '" +
709 V->getType()->getDescription() + "'");
717 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
718 /// this is a declaration, otherwise it is a definition.
719 static GlobalVariable *
720 ParseGlobalVariable(char *NameStr,
721 GlobalValue::LinkageTypes Linkage,
722 GlobalValue::VisibilityTypes Visibility,
723 bool isConstantGlobal, const Type *Ty,
724 Constant *Initializer, bool IsThreadLocal) {
725 if (isa<FunctionType>(Ty)) {
726 GenerateError("Cannot declare global vars of function type");
730 const PointerType *PTy = PointerType::get(Ty);
734 Name = NameStr; // Copy string
735 free(NameStr); // Free old string
738 // See if this global value was forward referenced. If so, recycle the
742 ID = ValID::createGlobalName((char*)Name.c_str());
744 ID = ValID::createGlobalID(CurModule.Values.size());
747 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
748 // Move the global to the end of the list, from whereever it was
749 // previously inserted.
750 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
751 CurModule.CurrentModule->getGlobalList().remove(GV);
752 CurModule.CurrentModule->getGlobalList().push_back(GV);
753 GV->setInitializer(Initializer);
754 GV->setLinkage(Linkage);
755 GV->setVisibility(Visibility);
756 GV->setConstant(isConstantGlobal);
757 GV->setThreadLocal(IsThreadLocal);
758 InsertValue(GV, CurModule.Values);
762 // If this global has a name
764 // if the global we're parsing has an initializer (is a definition) and
765 // has external linkage.
766 if (Initializer && Linkage != GlobalValue::InternalLinkage)
767 // If there is already a global with external linkage with this name
768 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
769 // If we allow this GVar to get created, it will be renamed in the
770 // symbol table because it conflicts with an existing GVar. We can't
771 // allow redefinition of GVars whose linking indicates that their name
772 // must stay the same. Issue the error.
773 GenerateError("Redefinition of global variable named '" + Name +
774 "' of type '" + Ty->getDescription() + "'");
779 // Otherwise there is no existing GV to use, create one now.
781 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
782 CurModule.CurrentModule, IsThreadLocal);
783 GV->setVisibility(Visibility);
784 InsertValue(GV, CurModule.Values);
788 // setTypeName - Set the specified type to the name given. The name may be
789 // null potentially, in which case this is a noop. The string passed in is
790 // assumed to be a malloc'd string buffer, and is freed by this function.
792 // This function returns true if the type has already been defined, but is
793 // allowed to be redefined in the specified context. If the name is a new name
794 // for the type plane, it is inserted and false is returned.
795 static bool setTypeName(const Type *T, char *NameStr) {
796 assert(!inFunctionScope() && "Can't give types function-local names!");
797 if (NameStr == 0) return false;
799 std::string Name(NameStr); // Copy string
800 free(NameStr); // Free old string
802 // We don't allow assigning names to void type
803 if (T == Type::VoidTy) {
804 GenerateError("Can't assign name '" + Name + "' to the void type");
808 // Set the type name, checking for conflicts as we do so.
809 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
811 if (AlreadyExists) { // Inserting a name that is already defined???
812 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
813 assert(Existing && "Conflict but no matching type?!");
815 // There is only one case where this is allowed: when we are refining an
816 // opaque type. In this case, Existing will be an opaque type.
817 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
818 // We ARE replacing an opaque type!
819 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
823 // Otherwise, this is an attempt to redefine a type. That's okay if
824 // the redefinition is identical to the original. This will be so if
825 // Existing and T point to the same Type object. In this one case we
826 // allow the equivalent redefinition.
827 if (Existing == T) return true; // Yes, it's equal.
829 // Any other kind of (non-equivalent) redefinition is an error.
830 GenerateError("Redefinition of type named '" + Name + "' of type '" +
831 T->getDescription() + "'");
837 //===----------------------------------------------------------------------===//
838 // Code for handling upreferences in type names...
841 // TypeContains - Returns true if Ty directly contains E in it.
843 static bool TypeContains(const Type *Ty, const Type *E) {
844 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
845 E) != Ty->subtype_end();
850 // NestingLevel - The number of nesting levels that need to be popped before
851 // this type is resolved.
852 unsigned NestingLevel;
854 // LastContainedTy - This is the type at the current binding level for the
855 // type. Every time we reduce the nesting level, this gets updated.
856 const Type *LastContainedTy;
858 // UpRefTy - This is the actual opaque type that the upreference is
862 UpRefRecord(unsigned NL, OpaqueType *URTy)
863 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
867 // UpRefs - A list of the outstanding upreferences that need to be resolved.
868 static std::vector<UpRefRecord> UpRefs;
870 /// HandleUpRefs - Every time we finish a new layer of types, this function is
871 /// called. It loops through the UpRefs vector, which is a list of the
872 /// currently active types. For each type, if the up reference is contained in
873 /// the newly completed type, we decrement the level count. When the level
874 /// count reaches zero, the upreferenced type is the type that is passed in:
875 /// thus we can complete the cycle.
877 static PATypeHolder HandleUpRefs(const Type *ty) {
878 // If Ty isn't abstract, or if there are no up-references in it, then there is
879 // nothing to resolve here.
880 if (!ty->isAbstract() || UpRefs.empty()) return ty;
883 UR_OUT("Type '" << Ty->getDescription() <<
884 "' newly formed. Resolving upreferences.\n" <<
885 UpRefs.size() << " upreferences active!\n");
887 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
888 // to zero), we resolve them all together before we resolve them to Ty. At
889 // the end of the loop, if there is anything to resolve to Ty, it will be in
891 OpaqueType *TypeToResolve = 0;
893 for (unsigned i = 0; i != UpRefs.size(); ++i) {
894 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
895 << UpRefs[i].second->getDescription() << ") = "
896 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
897 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
898 // Decrement level of upreference
899 unsigned Level = --UpRefs[i].NestingLevel;
900 UpRefs[i].LastContainedTy = Ty;
901 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
902 if (Level == 0) { // Upreference should be resolved!
903 if (!TypeToResolve) {
904 TypeToResolve = UpRefs[i].UpRefTy;
906 UR_OUT(" * Resolving upreference for "
907 << UpRefs[i].second->getDescription() << "\n";
908 std::string OldName = UpRefs[i].UpRefTy->getDescription());
909 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
910 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
911 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
913 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
914 --i; // Do not skip the next element...
920 UR_OUT(" * Resolving upreference for "
921 << UpRefs[i].second->getDescription() << "\n";
922 std::string OldName = TypeToResolve->getDescription());
923 TypeToResolve->refineAbstractTypeTo(Ty);
929 //===----------------------------------------------------------------------===//
930 // RunVMAsmParser - Define an interface to this parser
931 //===----------------------------------------------------------------------===//
933 static Module* RunParser(Module * M);
935 Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
938 CurFilename = Filename;
939 return RunParser(new Module(CurFilename));
942 Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
943 set_scan_string(AsmString);
945 CurFilename = "from_memory";
947 return RunParser(new Module (CurFilename));
956 llvm::Module *ModuleVal;
957 llvm::Function *FunctionVal;
958 llvm::BasicBlock *BasicBlockVal;
959 llvm::TerminatorInst *TermInstVal;
960 llvm::Instruction *InstVal;
961 llvm::Constant *ConstVal;
963 const llvm::Type *PrimType;
964 std::list<llvm::PATypeHolder> *TypeList;
965 llvm::PATypeHolder *TypeVal;
966 llvm::Value *ValueVal;
967 std::vector<llvm::Value*> *ValueList;
968 llvm::ArgListType *ArgList;
969 llvm::TypeWithAttrs TypeWithAttrs;
970 llvm::TypeWithAttrsList *TypeWithAttrsList;
971 llvm::ValueRefList *ValueRefList;
973 // Represent the RHS of PHI node
974 std::list<std::pair<llvm::Value*,
975 llvm::BasicBlock*> > *PHIList;
976 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
977 std::vector<llvm::Constant*> *ConstVector;
979 llvm::GlobalValue::LinkageTypes Linkage;
980 llvm::GlobalValue::VisibilityTypes Visibility;
982 llvm::APInt *APIntVal;
990 char *StrVal; // This memory is strdup'd!
991 llvm::ValID ValIDVal; // strdup'd memory maybe!
993 llvm::Instruction::BinaryOps BinaryOpVal;
994 llvm::Instruction::TermOps TermOpVal;
995 llvm::Instruction::MemoryOps MemOpVal;
996 llvm::Instruction::CastOps CastOpVal;
997 llvm::Instruction::OtherOps OtherOpVal;
998 llvm::ICmpInst::Predicate IPredicate;
999 llvm::FCmpInst::Predicate FPredicate;
1002 %type <ModuleVal> Module
1003 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1004 %type <BasicBlockVal> BasicBlock InstructionList
1005 %type <TermInstVal> BBTerminatorInst
1006 %type <InstVal> Inst InstVal MemoryInst
1007 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1008 %type <ConstVector> ConstVector
1009 %type <ArgList> ArgList ArgListH
1010 %type <PHIList> PHIList
1011 %type <ValueRefList> ValueRefList // For call param lists & GEP indices
1012 %type <ValueList> IndexList // For GEP indices
1013 %type <TypeList> TypeListI
1014 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1015 %type <TypeWithAttrs> ArgType
1016 %type <JumpTable> JumpTable
1017 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1018 %type <BoolVal> ThreadLocal // 'thread_local' or not
1019 %type <BoolVal> OptVolatile // 'volatile' or not
1020 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1021 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1022 %type <Linkage> GVInternalLinkage GVExternalLinkage
1023 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1024 %type <Linkage> AliasLinkage
1025 %type <Visibility> GVVisibilityStyle
1027 // ValueRef - Unresolved reference to a definition or BB
1028 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1029 %type <ValueVal> ResolvedVal // <type> <valref> pair
1030 // Tokens and types for handling constant integer values
1032 // ESINT64VAL - A negative number within long long range
1033 %token <SInt64Val> ESINT64VAL
1035 // EUINT64VAL - A positive number within uns. long long range
1036 %token <UInt64Val> EUINT64VAL
1038 // ESAPINTVAL - A negative number with arbitrary precision
1039 %token <APIntVal> ESAPINTVAL
1041 // EUAPINTVAL - A positive number with arbitrary precision
1042 %token <APIntVal> EUAPINTVAL
1044 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1045 %token <FPVal> FPVAL // Float or Double constant
1047 // Built in types...
1048 %type <TypeVal> Types ResultTypes
1049 %type <PrimType> IntType FPType PrimType // Classifications
1050 %token <PrimType> VOID INTTYPE
1051 %token <PrimType> FLOAT DOUBLE LABEL
1054 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR STRINGCONSTANT ATSTRINGCONSTANT
1055 %type <StrVal> LocalName OptLocalName OptLocalAssign
1056 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1057 %type <UIntVal> OptAlign OptCAlign
1058 %type <StrVal> OptSection SectionString
1060 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1061 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1062 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1063 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1064 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN
1065 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1066 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1068 %type <UIntVal> OptCallingConv
1069 %type <ParamAttrs> OptParamAttrs ParamAttr
1070 %type <ParamAttrs> OptFuncAttrs FuncAttr
1072 // Basic Block Terminating Operators
1073 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1076 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1077 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1078 %token <BinaryOpVal> SHL LSHR ASHR
1080 %token <OtherOpVal> ICMP FCMP
1081 %type <IPredicate> IPredicates
1082 %type <FPredicate> FPredicates
1083 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1084 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1086 // Memory Instructions
1087 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1090 %type <CastOpVal> CastOps
1091 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1092 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1095 %token <OtherOpVal> PHI_TOK SELECT VAARG
1096 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1098 // Function Attributes
1099 %token NORETURN INREG SRET NOUNWIND
1101 // Visibility Styles
1102 %token DEFAULT HIDDEN
1108 // Operations that are notably excluded from this list include:
1109 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1111 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1112 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1113 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1114 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1117 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1118 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1119 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1120 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1121 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1125 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1126 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1127 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1128 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1129 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1130 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1131 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1132 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1133 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1136 // These are some types that allow classification if we only want a particular
1137 // thing... for example, only a signed, unsigned, or integral type.
1139 FPType : FLOAT | DOUBLE;
1141 LocalName : LOCALVAR | STRINGCONSTANT;
1142 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1144 /// OptLocalAssign - Value producing statements have an optional assignment
1146 OptLocalAssign : LocalName '=' {
1155 GlobalName : GLOBALVAR | ATSTRINGCONSTANT;
1157 OptGlobalAssign : GlobalAssign
1163 GlobalAssign : GlobalName '=' {
1169 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1170 | WEAK { $$ = GlobalValue::WeakLinkage; }
1171 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1172 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1173 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1177 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1178 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1179 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1183 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1184 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1185 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1188 FunctionDeclareLinkage
1189 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1190 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1191 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1194 FunctionDefineLinkage
1195 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1196 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1197 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1198 | WEAK { $$ = GlobalValue::WeakLinkage; }
1199 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1203 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1204 | WEAK { $$ = GlobalValue::WeakLinkage; }
1205 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1208 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1209 CCC_TOK { $$ = CallingConv::C; } |
1210 FASTCC_TOK { $$ = CallingConv::Fast; } |
1211 COLDCC_TOK { $$ = CallingConv::Cold; } |
1212 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1213 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1215 if ((unsigned)$2 != $2)
1216 GEN_ERROR("Calling conv too large");
1221 ParamAttr : ZEXT { $$ = ParamAttr::ZExt; }
1222 | SEXT { $$ = ParamAttr::SExt; }
1223 | INREG { $$ = ParamAttr::InReg; }
1224 | SRET { $$ = ParamAttr::StructRet; }
1227 OptParamAttrs : /* empty */ { $$ = ParamAttr::None; }
1228 | OptParamAttrs ParamAttr {
1233 FuncAttr : NORETURN { $$ = ParamAttr::NoReturn; }
1234 | NOUNWIND { $$ = ParamAttr::NoUnwind; }
1238 OptFuncAttrs : /* empty */ { $$ = ParamAttr::None; }
1239 | OptFuncAttrs FuncAttr {
1244 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1245 // a comma before it.
1246 OptAlign : /*empty*/ { $$ = 0; } |
1249 if ($$ != 0 && !isPowerOf2_32($$))
1250 GEN_ERROR("Alignment must be a power of two");
1253 OptCAlign : /*empty*/ { $$ = 0; } |
1254 ',' ALIGN EUINT64VAL {
1256 if ($$ != 0 && !isPowerOf2_32($$))
1257 GEN_ERROR("Alignment must be a power of two");
1262 SectionString : SECTION STRINGCONSTANT {
1263 for (unsigned i = 0, e = strlen($2); i != e; ++i)
1264 if ($2[i] == '"' || $2[i] == '\\')
1265 GEN_ERROR("Invalid character in section name");
1270 OptSection : /*empty*/ { $$ = 0; } |
1271 SectionString { $$ = $1; };
1273 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1274 // is set to be the global we are processing.
1276 GlobalVarAttributes : /* empty */ {} |
1277 ',' GlobalVarAttribute GlobalVarAttributes {};
1278 GlobalVarAttribute : SectionString {
1279 CurGV->setSection($1);
1283 | ALIGN EUINT64VAL {
1284 if ($2 != 0 && !isPowerOf2_32($2))
1285 GEN_ERROR("Alignment must be a power of two");
1286 CurGV->setAlignment($2);
1290 //===----------------------------------------------------------------------===//
1291 // Types includes all predefined types... except void, because it can only be
1292 // used in specific contexts (function returning void for example).
1294 // Derived types are added later...
1296 PrimType : INTTYPE | FLOAT | DOUBLE | LABEL ;
1300 $$ = new PATypeHolder(OpaqueType::get());
1304 $$ = new PATypeHolder($1);
1307 | Types '*' { // Pointer type?
1308 if (*$1 == Type::LabelTy)
1309 GEN_ERROR("Cannot form a pointer to a basic block");
1310 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1)));
1314 | SymbolicValueRef { // Named types are also simple types...
1315 const Type* tmp = getTypeVal($1);
1317 $$ = new PATypeHolder(tmp);
1319 | '\\' EUINT64VAL { // Type UpReference
1320 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1321 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1322 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1323 $$ = new PATypeHolder(OT);
1324 UR_OUT("New Upreference!\n");
1327 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1328 std::vector<const Type*> Params;
1329 ParamAttrsVector Attrs;
1330 if ($5 != ParamAttr::None) {
1331 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1335 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1336 for (; I != E; ++I, ++index) {
1337 const Type *Ty = I->Ty->get();
1338 Params.push_back(Ty);
1339 if (Ty != Type::VoidTy)
1340 if (I->Attrs != ParamAttr::None) {
1341 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1345 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1346 if (isVarArg) Params.pop_back();
1348 ParamAttrsList *ActualAttrs = 0;
1350 ActualAttrs = ParamAttrsList::get(Attrs);
1351 FunctionType *FT = FunctionType::get(*$1, Params, isVarArg, ActualAttrs);
1352 delete $3; // Delete the argument list
1353 delete $1; // Delete the return type handle
1354 $$ = new PATypeHolder(HandleUpRefs(FT));
1357 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1358 std::vector<const Type*> Params;
1359 ParamAttrsVector Attrs;
1360 if ($5 != ParamAttr::None) {
1361 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1364 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1366 for ( ; I != E; ++I, ++index) {
1367 const Type* Ty = I->Ty->get();
1368 Params.push_back(Ty);
1369 if (Ty != Type::VoidTy)
1370 if (I->Attrs != ParamAttr::None) {
1371 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1375 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1376 if (isVarArg) Params.pop_back();
1378 ParamAttrsList *ActualAttrs = 0;
1380 ActualAttrs = ParamAttrsList::get(Attrs);
1382 FunctionType *FT = FunctionType::get($1, Params, isVarArg, ActualAttrs);
1383 delete $3; // Delete the argument list
1384 $$ = new PATypeHolder(HandleUpRefs(FT));
1388 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1389 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
1393 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1394 const llvm::Type* ElemTy = $4->get();
1395 if ((unsigned)$2 != $2)
1396 GEN_ERROR("Unsigned result not equal to signed result");
1397 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1398 GEN_ERROR("Element type of a VectorType must be primitive");
1399 if (!isPowerOf2_32($2))
1400 GEN_ERROR("Vector length should be a power of 2");
1401 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1405 | '{' TypeListI '}' { // Structure type?
1406 std::vector<const Type*> Elements;
1407 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1408 E = $2->end(); I != E; ++I)
1409 Elements.push_back(*I);
1411 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1415 | '{' '}' { // Empty structure type?
1416 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1419 | '<' '{' TypeListI '}' '>' {
1420 std::vector<const Type*> Elements;
1421 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1422 E = $3->end(); I != E; ++I)
1423 Elements.push_back(*I);
1425 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1429 | '<' '{' '}' '>' { // Empty structure type?
1430 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1436 : Types OptParamAttrs {
1444 if (!UpRefs.empty())
1445 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1446 if (!(*$1)->isFirstClassType())
1447 GEN_ERROR("LLVM functions cannot return aggregate types");
1451 $$ = new PATypeHolder(Type::VoidTy);
1455 ArgTypeList : ArgType {
1456 $$ = new TypeWithAttrsList();
1460 | ArgTypeList ',' ArgType {
1461 ($$=$1)->push_back($3);
1468 | ArgTypeList ',' DOTDOTDOT {
1470 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1471 TWA.Ty = new PATypeHolder(Type::VoidTy);
1476 $$ = new TypeWithAttrsList;
1477 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1478 TWA.Ty = new PATypeHolder(Type::VoidTy);
1483 $$ = new TypeWithAttrsList();
1487 // TypeList - Used for struct declarations and as a basis for function type
1488 // declaration type lists
1491 $$ = new std::list<PATypeHolder>();
1496 | TypeListI ',' Types {
1497 ($$=$1)->push_back(*$3);
1502 // ConstVal - The various declarations that go into the constant pool. This
1503 // production is used ONLY to represent constants that show up AFTER a 'const',
1504 // 'constant' or 'global' token at global scope. Constants that can be inlined
1505 // into other expressions (such as integers and constexprs) are handled by the
1506 // ResolvedVal, ValueRef and ConstValueRef productions.
1508 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1509 if (!UpRefs.empty())
1510 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1511 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1513 GEN_ERROR("Cannot make array constant with type: '" +
1514 (*$1)->getDescription() + "'");
1515 const Type *ETy = ATy->getElementType();
1516 int NumElements = ATy->getNumElements();
1518 // Verify that we have the correct size...
1519 if (NumElements != -1 && NumElements != (int)$3->size())
1520 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1521 utostr($3->size()) + " arguments, but has size of " +
1522 itostr(NumElements) + "");
1524 // Verify all elements are correct type!
1525 for (unsigned i = 0; i < $3->size(); i++) {
1526 if (ETy != (*$3)[i]->getType())
1527 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1528 ETy->getDescription() +"' as required!\nIt is of type '"+
1529 (*$3)[i]->getType()->getDescription() + "'.");
1532 $$ = ConstantArray::get(ATy, *$3);
1533 delete $1; delete $3;
1537 if (!UpRefs.empty())
1538 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1539 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1541 GEN_ERROR("Cannot make array constant with type: '" +
1542 (*$1)->getDescription() + "'");
1544 int NumElements = ATy->getNumElements();
1545 if (NumElements != -1 && NumElements != 0)
1546 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1547 " arguments, but has size of " + itostr(NumElements) +"");
1548 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1552 | Types 'c' STRINGCONSTANT {
1553 if (!UpRefs.empty())
1554 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1555 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1557 GEN_ERROR("Cannot make array constant with type: '" +
1558 (*$1)->getDescription() + "'");
1560 int NumElements = ATy->getNumElements();
1561 const Type *ETy = ATy->getElementType();
1562 char *EndStr = UnEscapeLexed($3, true);
1563 if (NumElements != -1 && NumElements != (EndStr-$3))
1564 GEN_ERROR("Can't build string constant of size " +
1565 itostr((int)(EndStr-$3)) +
1566 " when array has size " + itostr(NumElements) + "");
1567 std::vector<Constant*> Vals;
1568 if (ETy == Type::Int8Ty) {
1569 for (unsigned char *C = (unsigned char *)$3;
1570 C != (unsigned char*)EndStr; ++C)
1571 Vals.push_back(ConstantInt::get(ETy, *C));
1574 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1577 $$ = ConstantArray::get(ATy, Vals);
1581 | Types '<' ConstVector '>' { // Nonempty unsized arr
1582 if (!UpRefs.empty())
1583 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1584 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1586 GEN_ERROR("Cannot make packed constant with type: '" +
1587 (*$1)->getDescription() + "'");
1588 const Type *ETy = PTy->getElementType();
1589 int NumElements = PTy->getNumElements();
1591 // Verify that we have the correct size...
1592 if (NumElements != -1 && NumElements != (int)$3->size())
1593 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1594 utostr($3->size()) + " arguments, but has size of " +
1595 itostr(NumElements) + "");
1597 // Verify all elements are correct type!
1598 for (unsigned i = 0; i < $3->size(); i++) {
1599 if (ETy != (*$3)[i]->getType())
1600 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1601 ETy->getDescription() +"' as required!\nIt is of type '"+
1602 (*$3)[i]->getType()->getDescription() + "'.");
1605 $$ = ConstantVector::get(PTy, *$3);
1606 delete $1; delete $3;
1609 | Types '{' ConstVector '}' {
1610 const StructType *STy = dyn_cast<StructType>($1->get());
1612 GEN_ERROR("Cannot make struct constant with type: '" +
1613 (*$1)->getDescription() + "'");
1615 if ($3->size() != STy->getNumContainedTypes())
1616 GEN_ERROR("Illegal number of initializers for structure type");
1618 // Check to ensure that constants are compatible with the type initializer!
1619 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1620 if ((*$3)[i]->getType() != STy->getElementType(i))
1621 GEN_ERROR("Expected type '" +
1622 STy->getElementType(i)->getDescription() +
1623 "' for element #" + utostr(i) +
1624 " of structure initializer");
1626 // Check to ensure that Type is not packed
1627 if (STy->isPacked())
1628 GEN_ERROR("Unpacked Initializer to vector type '" +
1629 STy->getDescription() + "'");
1631 $$ = ConstantStruct::get(STy, *$3);
1632 delete $1; delete $3;
1636 if (!UpRefs.empty())
1637 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1638 const StructType *STy = dyn_cast<StructType>($1->get());
1640 GEN_ERROR("Cannot make struct constant with type: '" +
1641 (*$1)->getDescription() + "'");
1643 if (STy->getNumContainedTypes() != 0)
1644 GEN_ERROR("Illegal number of initializers for structure type");
1646 // Check to ensure that Type is not packed
1647 if (STy->isPacked())
1648 GEN_ERROR("Unpacked Initializer to vector type '" +
1649 STy->getDescription() + "'");
1651 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1655 | Types '<' '{' ConstVector '}' '>' {
1656 const StructType *STy = dyn_cast<StructType>($1->get());
1658 GEN_ERROR("Cannot make struct constant with type: '" +
1659 (*$1)->getDescription() + "'");
1661 if ($4->size() != STy->getNumContainedTypes())
1662 GEN_ERROR("Illegal number of initializers for structure type");
1664 // Check to ensure that constants are compatible with the type initializer!
1665 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1666 if ((*$4)[i]->getType() != STy->getElementType(i))
1667 GEN_ERROR("Expected type '" +
1668 STy->getElementType(i)->getDescription() +
1669 "' for element #" + utostr(i) +
1670 " of structure initializer");
1672 // Check to ensure that Type is packed
1673 if (!STy->isPacked())
1674 GEN_ERROR("Vector initializer to non-vector type '" +
1675 STy->getDescription() + "'");
1677 $$ = ConstantStruct::get(STy, *$4);
1678 delete $1; delete $4;
1681 | Types '<' '{' '}' '>' {
1682 if (!UpRefs.empty())
1683 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1684 const StructType *STy = dyn_cast<StructType>($1->get());
1686 GEN_ERROR("Cannot make struct constant with type: '" +
1687 (*$1)->getDescription() + "'");
1689 if (STy->getNumContainedTypes() != 0)
1690 GEN_ERROR("Illegal number of initializers for structure type");
1692 // Check to ensure that Type is packed
1693 if (!STy->isPacked())
1694 GEN_ERROR("Vector initializer to non-vector type '" +
1695 STy->getDescription() + "'");
1697 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1702 if (!UpRefs.empty())
1703 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1704 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1706 GEN_ERROR("Cannot make null pointer constant with type: '" +
1707 (*$1)->getDescription() + "'");
1709 $$ = ConstantPointerNull::get(PTy);
1714 if (!UpRefs.empty())
1715 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1716 $$ = UndefValue::get($1->get());
1720 | Types SymbolicValueRef {
1721 if (!UpRefs.empty())
1722 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1723 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1725 GEN_ERROR("Global const reference must be a pointer type");
1727 // ConstExprs can exist in the body of a function, thus creating
1728 // GlobalValues whenever they refer to a variable. Because we are in
1729 // the context of a function, getExistingVal will search the functions
1730 // symbol table instead of the module symbol table for the global symbol,
1731 // which throws things all off. To get around this, we just tell
1732 // getExistingVal that we are at global scope here.
1734 Function *SavedCurFn = CurFun.CurrentFunction;
1735 CurFun.CurrentFunction = 0;
1737 Value *V = getExistingVal(Ty, $2);
1740 CurFun.CurrentFunction = SavedCurFn;
1742 // If this is an initializer for a constant pointer, which is referencing a
1743 // (currently) undefined variable, create a stub now that shall be replaced
1744 // in the future with the right type of variable.
1747 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1748 const PointerType *PT = cast<PointerType>(Ty);
1750 // First check to see if the forward references value is already created!
1751 PerModuleInfo::GlobalRefsType::iterator I =
1752 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1754 if (I != CurModule.GlobalRefs.end()) {
1755 V = I->second; // Placeholder already exists, use it...
1759 if ($2.Type == ValID::GlobalName)
1761 else if ($2.Type != ValID::GlobalID)
1762 GEN_ERROR("Invalid reference to global");
1764 // Create the forward referenced global.
1766 if (const FunctionType *FTy =
1767 dyn_cast<FunctionType>(PT->getElementType())) {
1768 GV = new Function(FTy, GlobalValue::ExternalWeakLinkage, Name,
1769 CurModule.CurrentModule);
1771 GV = new GlobalVariable(PT->getElementType(), false,
1772 GlobalValue::ExternalWeakLinkage, 0,
1773 Name, CurModule.CurrentModule);
1776 // Keep track of the fact that we have a forward ref to recycle it
1777 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1782 $$ = cast<GlobalValue>(V);
1783 delete $1; // Free the type handle
1787 if (!UpRefs.empty())
1788 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1789 if ($1->get() != $2->getType())
1790 GEN_ERROR("Mismatched types for constant expression: " +
1791 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1796 | Types ZEROINITIALIZER {
1797 if (!UpRefs.empty())
1798 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1799 const Type *Ty = $1->get();
1800 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1801 GEN_ERROR("Cannot create a null initialized value of this type");
1802 $$ = Constant::getNullValue(Ty);
1806 | IntType ESINT64VAL { // integral constants
1807 if (!ConstantInt::isValueValidForType($1, $2))
1808 GEN_ERROR("Constant value doesn't fit in type");
1809 $$ = ConstantInt::get($1, $2, true);
1812 | IntType ESAPINTVAL { // arbitrary precision integer constants
1813 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1814 if ($2->getBitWidth() > BitWidth) {
1815 GEN_ERROR("Constant value does not fit in type");
1817 $2->sextOrTrunc(BitWidth);
1818 $$ = ConstantInt::get(*$2);
1822 | IntType EUINT64VAL { // integral constants
1823 if (!ConstantInt::isValueValidForType($1, $2))
1824 GEN_ERROR("Constant value doesn't fit in type");
1825 $$ = ConstantInt::get($1, $2, false);
1828 | IntType EUAPINTVAL { // arbitrary precision integer constants
1829 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1830 if ($2->getBitWidth() > BitWidth) {
1831 GEN_ERROR("Constant value does not fit in type");
1833 $2->zextOrTrunc(BitWidth);
1834 $$ = ConstantInt::get(*$2);
1838 | INTTYPE TRUETOK { // Boolean constants
1839 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1840 $$ = ConstantInt::getTrue();
1843 | INTTYPE FALSETOK { // Boolean constants
1844 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1845 $$ = ConstantInt::getFalse();
1848 | FPType FPVAL { // Float & Double constants
1849 if (!ConstantFP::isValueValidForType($1, $2))
1850 GEN_ERROR("Floating point constant invalid for type");
1851 $$ = ConstantFP::get($1, $2);
1856 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1857 if (!UpRefs.empty())
1858 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1860 const Type *DestTy = $5->get();
1861 if (!CastInst::castIsValid($1, $3, DestTy))
1862 GEN_ERROR("invalid cast opcode for cast from '" +
1863 Val->getType()->getDescription() + "' to '" +
1864 DestTy->getDescription() + "'");
1865 $$ = ConstantExpr::getCast($1, $3, DestTy);
1868 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1869 if (!isa<PointerType>($3->getType()))
1870 GEN_ERROR("GetElementPtr requires a pointer operand");
1873 GetElementPtrInst::getIndexedType($3->getType(), &(*$4)[0], $4->size(),
1876 GEN_ERROR("Index list invalid for constant getelementptr");
1878 SmallVector<Constant*, 8> IdxVec;
1879 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1880 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1881 IdxVec.push_back(C);
1883 GEN_ERROR("Indices to constant getelementptr must be constants");
1887 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1890 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1891 if ($3->getType() != Type::Int1Ty)
1892 GEN_ERROR("Select condition must be of boolean type");
1893 if ($5->getType() != $7->getType())
1894 GEN_ERROR("Select operand types must match");
1895 $$ = ConstantExpr::getSelect($3, $5, $7);
1898 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1899 if ($3->getType() != $5->getType())
1900 GEN_ERROR("Binary operator types must match");
1902 $$ = ConstantExpr::get($1, $3, $5);
1904 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1905 if ($3->getType() != $5->getType())
1906 GEN_ERROR("Logical operator types must match");
1907 if (!$3->getType()->isInteger()) {
1908 if (Instruction::isShift($1) || !isa<VectorType>($3->getType()) ||
1909 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1910 GEN_ERROR("Logical operator requires integral operands");
1912 $$ = ConstantExpr::get($1, $3, $5);
1915 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1916 if ($4->getType() != $6->getType())
1917 GEN_ERROR("icmp operand types must match");
1918 $$ = ConstantExpr::getICmp($2, $4, $6);
1920 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1921 if ($4->getType() != $6->getType())
1922 GEN_ERROR("fcmp operand types must match");
1923 $$ = ConstantExpr::getFCmp($2, $4, $6);
1925 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1926 if (!ExtractElementInst::isValidOperands($3, $5))
1927 GEN_ERROR("Invalid extractelement operands");
1928 $$ = ConstantExpr::getExtractElement($3, $5);
1931 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1932 if (!InsertElementInst::isValidOperands($3, $5, $7))
1933 GEN_ERROR("Invalid insertelement operands");
1934 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1937 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1938 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
1939 GEN_ERROR("Invalid shufflevector operands");
1940 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
1945 // ConstVector - A list of comma separated constants.
1946 ConstVector : ConstVector ',' ConstVal {
1947 ($$ = $1)->push_back($3);
1951 $$ = new std::vector<Constant*>();
1957 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
1958 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
1961 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
1963 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
1964 AliaseeRef : ResultTypes SymbolicValueRef {
1965 const Type* VTy = $1->get();
1966 Value *V = getVal(VTy, $2);
1967 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
1969 GEN_ERROR("Aliases can be created only to global values");
1975 | BITCAST '(' AliaseeRef TO Types ')' {
1977 const Type *DestTy = $5->get();
1978 if (!CastInst::castIsValid($1, $3, DestTy))
1979 GEN_ERROR("invalid cast opcode for cast from '" +
1980 Val->getType()->getDescription() + "' to '" +
1981 DestTy->getDescription() + "'");
1983 $$ = ConstantExpr::getCast($1, $3, DestTy);
1988 //===----------------------------------------------------------------------===//
1989 // Rules to match Modules
1990 //===----------------------------------------------------------------------===//
1992 // Module rule: Capture the result of parsing the whole file into a result
1997 $$ = ParserResult = CurModule.CurrentModule;
1998 CurModule.ModuleDone();
2002 $$ = ParserResult = CurModule.CurrentModule;
2003 CurModule.ModuleDone();
2010 | DefinitionList Definition
2014 : DEFINE { CurFun.isDeclare = false; } Function {
2015 CurFun.FunctionDone();
2018 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2021 | MODULE ASM_TOK AsmBlock {
2024 | OptLocalAssign TYPE Types {
2025 if (!UpRefs.empty())
2026 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2027 // Eagerly resolve types. This is not an optimization, this is a
2028 // requirement that is due to the fact that we could have this:
2030 // %list = type { %list * }
2031 // %list = type { %list * } ; repeated type decl
2033 // If types are not resolved eagerly, then the two types will not be
2034 // determined to be the same type!
2036 ResolveTypeTo($1, *$3);
2038 if (!setTypeName(*$3, $1) && !$1) {
2040 // If this is a named type that is not a redefinition, add it to the slot
2042 CurModule.Types.push_back(*$3);
2048 | OptLocalAssign TYPE VOID {
2049 ResolveTypeTo($1, $3);
2051 if (!setTypeName($3, $1) && !$1) {
2053 // If this is a named type that is not a redefinition, add it to the slot
2055 CurModule.Types.push_back($3);
2059 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal {
2060 /* "Externally Visible" Linkage */
2062 GEN_ERROR("Global value initializer is not a constant");
2063 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2064 $2, $4, $5->getType(), $5, $3);
2066 } GlobalVarAttributes {
2069 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2072 GEN_ERROR("Global value initializer is not a constant");
2073 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4);
2075 } GlobalVarAttributes {
2078 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2080 if (!UpRefs.empty())
2081 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2082 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4);
2085 } GlobalVarAttributes {
2089 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2090 std::string Name($1);
2092 GEN_ERROR("Alias name cannot be empty");
2094 Constant* Aliasee = $5;
2096 GEN_ERROR(std::string("Invalid aliasee for alias: ") + $1);
2098 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2099 CurModule.CurrentModule);
2100 GA->setVisibility($2);
2101 InsertValue(GA, CurModule.Values);
2104 | TARGET TargetDefinition {
2107 | DEPLIBS '=' LibrariesDefinition {
2113 AsmBlock : STRINGCONSTANT {
2114 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2115 char *EndStr = UnEscapeLexed($1, true);
2116 std::string NewAsm($1, EndStr);
2119 if (AsmSoFar.empty())
2120 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2122 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2126 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2127 CurModule.CurrentModule->setTargetTriple($3);
2130 | DATALAYOUT '=' STRINGCONSTANT {
2131 CurModule.CurrentModule->setDataLayout($3);
2135 LibrariesDefinition : '[' LibList ']';
2137 LibList : LibList ',' STRINGCONSTANT {
2138 CurModule.CurrentModule->addLibrary($3);
2143 CurModule.CurrentModule->addLibrary($1);
2147 | /* empty: end of list */ {
2152 //===----------------------------------------------------------------------===//
2153 // Rules to match Function Headers
2154 //===----------------------------------------------------------------------===//
2156 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2157 if (!UpRefs.empty())
2158 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2159 if (*$3 == Type::VoidTy)
2160 GEN_ERROR("void typed arguments are invalid");
2161 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2166 | Types OptParamAttrs OptLocalName {
2167 if (!UpRefs.empty())
2168 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2169 if (*$1 == Type::VoidTy)
2170 GEN_ERROR("void typed arguments are invalid");
2171 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2172 $$ = new ArgListType;
2177 ArgList : ArgListH {
2181 | ArgListH ',' DOTDOTDOT {
2183 struct ArgListEntry E;
2184 E.Ty = new PATypeHolder(Type::VoidTy);
2186 E.Attrs = ParamAttr::None;
2191 $$ = new ArgListType;
2192 struct ArgListEntry E;
2193 E.Ty = new PATypeHolder(Type::VoidTy);
2195 E.Attrs = ParamAttr::None;
2204 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2205 OptFuncAttrs OptSection OptAlign {
2207 std::string FunctionName($3);
2208 free($3); // Free strdup'd memory!
2210 // Check the function result for abstractness if this is a define. We should
2211 // have no abstract types at this point
2212 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2213 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2215 std::vector<const Type*> ParamTypeList;
2216 ParamAttrsVector Attrs;
2217 if ($7 != ParamAttr::None) {
2218 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $7;
2219 Attrs.push_back(PAWI);
2221 if ($5) { // If there are arguments...
2223 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I, ++index) {
2224 const Type* Ty = I->Ty->get();
2225 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2226 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2227 ParamTypeList.push_back(Ty);
2228 if (Ty != Type::VoidTy)
2229 if (I->Attrs != ParamAttr::None) {
2230 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2231 Attrs.push_back(PAWI);
2236 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2237 if (isVarArg) ParamTypeList.pop_back();
2239 ParamAttrsList *PAL = 0;
2241 PAL = ParamAttrsList::get(Attrs);
2243 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg, PAL);
2244 const PointerType *PFT = PointerType::get(FT);
2248 if (!FunctionName.empty()) {
2249 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2251 ID = ValID::createGlobalID(CurModule.Values.size());
2255 // See if this function was forward referenced. If so, recycle the object.
2256 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2257 // Move the function to the end of the list, from whereever it was
2258 // previously inserted.
2259 Fn = cast<Function>(FWRef);
2260 CurModule.CurrentModule->getFunctionList().remove(Fn);
2261 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2262 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2263 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2264 if (Fn->getFunctionType() != FT) {
2265 // The existing function doesn't have the same type. This is an overload
2267 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2268 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2269 // Neither the existing or the current function is a declaration and they
2270 // have the same name and same type. Clearly this is a redefinition.
2271 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2272 } if (Fn->isDeclaration()) {
2273 // Make sure to strip off any argument names so we can't get conflicts.
2274 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2278 } else { // Not already defined?
2279 Fn = new Function(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2280 CurModule.CurrentModule);
2282 InsertValue(Fn, CurModule.Values);
2285 CurFun.FunctionStart(Fn);
2287 if (CurFun.isDeclare) {
2288 // If we have declaration, always overwrite linkage. This will allow us to
2289 // correctly handle cases, when pointer to function is passed as argument to
2290 // another function.
2291 Fn->setLinkage(CurFun.Linkage);
2292 Fn->setVisibility(CurFun.Visibility);
2294 Fn->setCallingConv($1);
2295 Fn->setAlignment($9);
2301 // Add all of the arguments we parsed to the function...
2302 if ($5) { // Is null if empty...
2303 if (isVarArg) { // Nuke the last entry
2304 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2305 "Not a varargs marker!");
2306 delete $5->back().Ty;
2307 $5->pop_back(); // Delete the last entry
2309 Function::arg_iterator ArgIt = Fn->arg_begin();
2310 Function::arg_iterator ArgEnd = Fn->arg_end();
2312 for (ArgListType::iterator I = $5->begin();
2313 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2314 delete I->Ty; // Delete the typeholder...
2315 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2321 delete $5; // We're now done with the argument list
2326 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2328 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2329 $$ = CurFun.CurrentFunction;
2331 // Make sure that we keep track of the linkage type even if there was a
2332 // previous "declare".
2334 $$->setVisibility($2);
2337 END : ENDTOK | '}'; // Allow end of '}' to end a function
2339 Function : BasicBlockList END {
2344 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2345 CurFun.CurrentFunction->setLinkage($1);
2346 CurFun.CurrentFunction->setVisibility($2);
2347 $$ = CurFun.CurrentFunction;
2348 CurFun.FunctionDone();
2352 //===----------------------------------------------------------------------===//
2353 // Rules to match Basic Blocks
2354 //===----------------------------------------------------------------------===//
2356 OptSideEffect : /* empty */ {
2365 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2366 $$ = ValID::create($1);
2370 $$ = ValID::create($1);
2373 | FPVAL { // Perhaps it's an FP constant?
2374 $$ = ValID::create($1);
2378 $$ = ValID::create(ConstantInt::getTrue());
2382 $$ = ValID::create(ConstantInt::getFalse());
2386 $$ = ValID::createNull();
2390 $$ = ValID::createUndef();
2393 | ZEROINITIALIZER { // A vector zero constant.
2394 $$ = ValID::createZeroInit();
2397 | '<' ConstVector '>' { // Nonempty unsized packed vector
2398 const Type *ETy = (*$2)[0]->getType();
2399 int NumElements = $2->size();
2401 VectorType* pt = VectorType::get(ETy, NumElements);
2402 PATypeHolder* PTy = new PATypeHolder(
2410 // Verify all elements are correct type!
2411 for (unsigned i = 0; i < $2->size(); i++) {
2412 if (ETy != (*$2)[i]->getType())
2413 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2414 ETy->getDescription() +"' as required!\nIt is of type '" +
2415 (*$2)[i]->getType()->getDescription() + "'.");
2418 $$ = ValID::create(ConstantVector::get(pt, *$2));
2419 delete PTy; delete $2;
2423 $$ = ValID::create($1);
2426 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2427 char *End = UnEscapeLexed($3, true);
2428 std::string AsmStr = std::string($3, End);
2429 End = UnEscapeLexed($5, true);
2430 std::string Constraints = std::string($5, End);
2431 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
2437 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2440 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2441 $$ = ValID::createLocalID($1);
2445 $$ = ValID::createGlobalID($1);
2448 | LocalName { // Is it a named reference...?
2449 $$ = ValID::createLocalName($1);
2452 | GlobalName { // Is it a named reference...?
2453 $$ = ValID::createGlobalName($1);
2457 // ValueRef - A reference to a definition... either constant or symbolic
2458 ValueRef : SymbolicValueRef | ConstValueRef;
2461 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2462 // type immediately preceeds the value reference, and allows complex constant
2463 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2464 ResolvedVal : Types ValueRef {
2465 if (!UpRefs.empty())
2466 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2467 $$ = getVal(*$1, $2);
2473 BasicBlockList : BasicBlockList BasicBlock {
2477 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2483 // Basic blocks are terminated by branching instructions:
2484 // br, br/cc, switch, ret
2486 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2487 setValueName($3, $2);
2490 $1->getInstList().push_back($3);
2495 InstructionList : InstructionList Inst {
2496 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2497 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2498 if (CI2->getParent() == 0)
2499 $1->getInstList().push_back(CI2);
2500 $1->getInstList().push_back($2);
2504 | /* empty */ { // Empty space between instruction lists
2505 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2508 | LABELSTR { // Labelled (named) basic block
2509 $$ = defineBBVal(ValID::createLocalName($1));
2513 BBTerminatorInst : RET ResolvedVal { // Return with a result...
2514 $$ = new ReturnInst($2);
2517 | RET VOID { // Return with no result...
2518 $$ = new ReturnInst();
2521 | BR LABEL ValueRef { // Unconditional Branch...
2522 BasicBlock* tmpBB = getBBVal($3);
2524 $$ = new BranchInst(tmpBB);
2525 } // Conditional Branch...
2526 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2527 assert(cast<IntegerType>($2)->getBitWidth() == 1 && "Not Bool?");
2528 BasicBlock* tmpBBA = getBBVal($6);
2530 BasicBlock* tmpBBB = getBBVal($9);
2532 Value* tmpVal = getVal(Type::Int1Ty, $3);
2534 $$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
2536 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2537 Value* tmpVal = getVal($2, $3);
2539 BasicBlock* tmpBB = getBBVal($6);
2541 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
2544 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2546 for (; I != E; ++I) {
2547 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2548 S->addCase(CI, I->second);
2550 GEN_ERROR("Switch case is constant, but not a simple integer");
2555 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2556 Value* tmpVal = getVal($2, $3);
2558 BasicBlock* tmpBB = getBBVal($6);
2560 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
2564 | INVOKE OptCallingConv ResultTypes ValueRef '(' ValueRefList ')' OptFuncAttrs
2565 TO LABEL ValueRef UNWIND LABEL ValueRef {
2567 // Handle the short syntax
2568 const PointerType *PFTy = 0;
2569 const FunctionType *Ty = 0;
2570 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2571 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2572 // Pull out the types of all of the arguments...
2573 std::vector<const Type*> ParamTypes;
2574 ParamAttrsVector Attrs;
2575 if ($8 != ParamAttr::None) {
2576 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = 8;
2577 Attrs.push_back(PAWI);
2579 ValueRefList::iterator I = $6->begin(), E = $6->end();
2581 for (; I != E; ++I, ++index) {
2582 const Type *Ty = I->Val->getType();
2583 if (Ty == Type::VoidTy)
2584 GEN_ERROR("Short call syntax cannot be used with varargs");
2585 ParamTypes.push_back(Ty);
2586 if (I->Attrs != ParamAttr::None) {
2587 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2588 Attrs.push_back(PAWI);
2592 ParamAttrsList *PAL = 0;
2594 PAL = ParamAttrsList::get(Attrs);
2595 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2596 PFTy = PointerType::get(Ty);
2601 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2603 BasicBlock *Normal = getBBVal($11);
2605 BasicBlock *Except = getBBVal($14);
2608 // Check the arguments
2610 if ($6->empty()) { // Has no arguments?
2611 // Make sure no arguments is a good thing!
2612 if (Ty->getNumParams() != 0)
2613 GEN_ERROR("No arguments passed to a function that "
2614 "expects arguments");
2615 } else { // Has arguments?
2616 // Loop through FunctionType's arguments and ensure they are specified
2618 FunctionType::param_iterator I = Ty->param_begin();
2619 FunctionType::param_iterator E = Ty->param_end();
2620 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2622 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2623 if (ArgI->Val->getType() != *I)
2624 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2625 (*I)->getDescription() + "'");
2626 Args.push_back(ArgI->Val);
2629 if (Ty->isVarArg()) {
2631 for (; ArgI != ArgE; ++ArgI)
2632 Args.push_back(ArgI->Val); // push the remaining varargs
2633 } else if (I != E || ArgI != ArgE)
2634 GEN_ERROR("Invalid number of parameters detected");
2637 // Create the InvokeInst
2638 InvokeInst *II = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
2639 II->setCallingConv($2);
2645 $$ = new UnwindInst();
2649 $$ = new UnreachableInst();
2655 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2657 Constant *V = cast<Constant>(getExistingVal($2, $3));
2660 GEN_ERROR("May only switch on a constant pool value");
2662 BasicBlock* tmpBB = getBBVal($6);
2664 $$->push_back(std::make_pair(V, tmpBB));
2666 | IntType ConstValueRef ',' LABEL ValueRef {
2667 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2668 Constant *V = cast<Constant>(getExistingVal($1, $2));
2672 GEN_ERROR("May only switch on a constant pool value");
2674 BasicBlock* tmpBB = getBBVal($5);
2676 $$->push_back(std::make_pair(V, tmpBB));
2679 Inst : OptLocalAssign InstVal {
2680 // Is this definition named?? if so, assign the name...
2681 setValueName($2, $1);
2689 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2690 if (!UpRefs.empty())
2691 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2692 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2693 Value* tmpVal = getVal(*$1, $3);
2695 BasicBlock* tmpBB = getBBVal($5);
2697 $$->push_back(std::make_pair(tmpVal, tmpBB));
2700 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2702 Value* tmpVal = getVal($1->front().first->getType(), $4);
2704 BasicBlock* tmpBB = getBBVal($6);
2706 $1->push_back(std::make_pair(tmpVal, tmpBB));
2710 ValueRefList : Types ValueRef OptParamAttrs {
2711 if (!UpRefs.empty())
2712 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2713 // Used for call and invoke instructions
2714 $$ = new ValueRefList();
2715 ValueRefListEntry E; E.Attrs = $3; E.Val = getVal($1->get(), $2);
2719 | ValueRefList ',' Types ValueRef OptParamAttrs {
2720 if (!UpRefs.empty())
2721 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2723 ValueRefListEntry E; E.Attrs = $5; E.Val = getVal($3->get(), $4);
2728 | /*empty*/ { $$ = new ValueRefList(); };
2730 IndexList // Used for gep instructions and constant expressions
2731 : /*empty*/ { $$ = new std::vector<Value*>(); }
2732 | IndexList ',' ResolvedVal {
2739 OptTailCall : TAIL CALL {
2748 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
2749 if (!UpRefs.empty())
2750 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2751 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
2752 !isa<VectorType>((*$2).get()))
2754 "Arithmetic operator requires integer, FP, or packed operands");
2755 if (isa<VectorType>((*$2).get()) &&
2756 ($1 == Instruction::URem ||
2757 $1 == Instruction::SRem ||
2758 $1 == Instruction::FRem))
2759 GEN_ERROR("Remainder not supported on vector types");
2760 Value* val1 = getVal(*$2, $3);
2762 Value* val2 = getVal(*$2, $5);
2764 $$ = BinaryOperator::create($1, val1, val2);
2766 GEN_ERROR("binary operator returned null");
2769 | LogicalOps Types ValueRef ',' ValueRef {
2770 if (!UpRefs.empty())
2771 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2772 if (!(*$2)->isInteger()) {
2773 if (Instruction::isShift($1) || !isa<VectorType>($2->get()) ||
2774 !cast<VectorType>($2->get())->getElementType()->isInteger())
2775 GEN_ERROR("Logical operator requires integral operands");
2777 Value* tmpVal1 = getVal(*$2, $3);
2779 Value* tmpVal2 = getVal(*$2, $5);
2781 $$ = BinaryOperator::create($1, tmpVal1, tmpVal2);
2783 GEN_ERROR("binary operator returned null");
2786 | ICMP IPredicates Types ValueRef ',' ValueRef {
2787 if (!UpRefs.empty())
2788 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2789 if (isa<VectorType>((*$3).get()))
2790 GEN_ERROR("Vector types not supported by icmp instruction");
2791 Value* tmpVal1 = getVal(*$3, $4);
2793 Value* tmpVal2 = getVal(*$3, $6);
2795 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2797 GEN_ERROR("icmp operator returned null");
2800 | FCMP FPredicates Types ValueRef ',' ValueRef {
2801 if (!UpRefs.empty())
2802 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2803 if (isa<VectorType>((*$3).get()))
2804 GEN_ERROR("Vector types not supported by fcmp instruction");
2805 Value* tmpVal1 = getVal(*$3, $4);
2807 Value* tmpVal2 = getVal(*$3, $6);
2809 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2811 GEN_ERROR("fcmp operator returned null");
2814 | CastOps ResolvedVal TO Types {
2815 if (!UpRefs.empty())
2816 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2818 const Type* DestTy = $4->get();
2819 if (!CastInst::castIsValid($1, Val, DestTy))
2820 GEN_ERROR("invalid cast opcode for cast from '" +
2821 Val->getType()->getDescription() + "' to '" +
2822 DestTy->getDescription() + "'");
2823 $$ = CastInst::create($1, Val, DestTy);
2826 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2827 if ($2->getType() != Type::Int1Ty)
2828 GEN_ERROR("select condition must be boolean");
2829 if ($4->getType() != $6->getType())
2830 GEN_ERROR("select value types should match");
2831 $$ = new SelectInst($2, $4, $6);
2834 | VAARG ResolvedVal ',' Types {
2835 if (!UpRefs.empty())
2836 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2837 $$ = new VAArgInst($2, *$4);
2841 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
2842 if (!ExtractElementInst::isValidOperands($2, $4))
2843 GEN_ERROR("Invalid extractelement operands");
2844 $$ = new ExtractElementInst($2, $4);
2847 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2848 if (!InsertElementInst::isValidOperands($2, $4, $6))
2849 GEN_ERROR("Invalid insertelement operands");
2850 $$ = new InsertElementInst($2, $4, $6);
2853 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2854 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
2855 GEN_ERROR("Invalid shufflevector operands");
2856 $$ = new ShuffleVectorInst($2, $4, $6);
2860 const Type *Ty = $2->front().first->getType();
2861 if (!Ty->isFirstClassType())
2862 GEN_ERROR("PHI node operands must be of first class type");
2863 $$ = new PHINode(Ty);
2864 ((PHINode*)$$)->reserveOperandSpace($2->size());
2865 while ($2->begin() != $2->end()) {
2866 if ($2->front().first->getType() != Ty)
2867 GEN_ERROR("All elements of a PHI node must be of the same type");
2868 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
2871 delete $2; // Free the list...
2874 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ValueRefList ')'
2877 // Handle the short syntax
2878 const PointerType *PFTy = 0;
2879 const FunctionType *Ty = 0;
2880 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2881 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2882 // Pull out the types of all of the arguments...
2883 std::vector<const Type*> ParamTypes;
2884 ParamAttrsVector Attrs;
2885 if ($8 != ParamAttr::None) {
2886 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2887 Attrs.push_back(PAWI);
2890 ValueRefList::iterator I = $6->begin(), E = $6->end();
2891 for (; I != E; ++I, ++index) {
2892 const Type *Ty = I->Val->getType();
2893 if (Ty == Type::VoidTy)
2894 GEN_ERROR("Short call syntax cannot be used with varargs");
2895 ParamTypes.push_back(Ty);
2896 if (I->Attrs != ParamAttr::None) {
2897 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2898 Attrs.push_back(PAWI);
2902 ParamAttrsList *PAL = 0;
2904 PAL = ParamAttrsList::get(Attrs);
2906 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2907 PFTy = PointerType::get(Ty);
2910 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2913 // Check for call to invalid intrinsic to avoid crashing later.
2914 if (Function *theF = dyn_cast<Function>(V)) {
2915 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
2916 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
2917 !theF->getIntrinsicID(true))
2918 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
2919 theF->getName() + "'");
2922 // Check the arguments
2924 if ($6->empty()) { // Has no arguments?
2925 // Make sure no arguments is a good thing!
2926 if (Ty->getNumParams() != 0)
2927 GEN_ERROR("No arguments passed to a function that "
2928 "expects arguments");
2929 } else { // Has arguments?
2930 // Loop through FunctionType's arguments and ensure they are specified
2933 FunctionType::param_iterator I = Ty->param_begin();
2934 FunctionType::param_iterator E = Ty->param_end();
2935 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2937 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2938 if (ArgI->Val->getType() != *I)
2939 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2940 (*I)->getDescription() + "'");
2941 Args.push_back(ArgI->Val);
2943 if (Ty->isVarArg()) {
2945 for (; ArgI != ArgE; ++ArgI)
2946 Args.push_back(ArgI->Val); // push the remaining varargs
2947 } else if (I != E || ArgI != ArgE)
2948 GEN_ERROR("Invalid number of parameters detected");
2950 // Create the call node
2951 CallInst *CI = new CallInst(V, &Args[0], Args.size());
2952 CI->setTailCall($1);
2953 CI->setCallingConv($2);
2964 OptVolatile : VOLATILE {
2975 MemoryInst : MALLOC Types OptCAlign {
2976 if (!UpRefs.empty())
2977 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2978 $$ = new MallocInst(*$2, 0, $3);
2982 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
2983 if (!UpRefs.empty())
2984 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2985 Value* tmpVal = getVal($4, $5);
2987 $$ = new MallocInst(*$2, tmpVal, $6);
2990 | ALLOCA Types OptCAlign {
2991 if (!UpRefs.empty())
2992 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2993 $$ = new AllocaInst(*$2, 0, $3);
2997 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
2998 if (!UpRefs.empty())
2999 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3000 Value* tmpVal = getVal($4, $5);
3002 $$ = new AllocaInst(*$2, tmpVal, $6);
3005 | FREE ResolvedVal {
3006 if (!isa<PointerType>($2->getType()))
3007 GEN_ERROR("Trying to free nonpointer type " +
3008 $2->getType()->getDescription() + "");
3009 $$ = new FreeInst($2);
3013 | OptVolatile LOAD Types ValueRef OptCAlign {
3014 if (!UpRefs.empty())
3015 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3016 if (!isa<PointerType>($3->get()))
3017 GEN_ERROR("Can't load from nonpointer type: " +
3018 (*$3)->getDescription());
3019 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3020 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3021 (*$3)->getDescription());
3022 Value* tmpVal = getVal(*$3, $4);
3024 $$ = new LoadInst(tmpVal, "", $1, $5);
3027 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3028 if (!UpRefs.empty())
3029 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3030 const PointerType *PT = dyn_cast<PointerType>($5->get());
3032 GEN_ERROR("Can't store to a nonpointer type: " +
3033 (*$5)->getDescription());
3034 const Type *ElTy = PT->getElementType();
3035 if (ElTy != $3->getType())
3036 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3037 "' into space of type '" + ElTy->getDescription() + "'");
3039 Value* tmpVal = getVal(*$5, $6);
3041 $$ = new StoreInst($3, tmpVal, $1, $7);
3044 | GETELEMENTPTR Types ValueRef IndexList {
3045 if (!UpRefs.empty())
3046 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3047 if (!isa<PointerType>($2->get()))
3048 GEN_ERROR("getelementptr insn requires pointer operand");
3050 if (!GetElementPtrInst::getIndexedType(*$2, &(*$4)[0], $4->size(), true))
3051 GEN_ERROR("Invalid getelementptr indices for type '" +
3052 (*$2)->getDescription()+ "'");
3053 Value* tmpVal = getVal(*$2, $3);
3055 $$ = new GetElementPtrInst(tmpVal, &(*$4)[0], $4->size());
3063 // common code from the two 'RunVMAsmParser' functions
3064 static Module* RunParser(Module * M) {
3066 llvmAsmlineno = 1; // Reset the current line number...
3067 CurModule.CurrentModule = M;
3072 // Check to make sure the parser succeeded
3075 delete ParserResult;
3079 // Emit an error if there are any unresolved types left.
3080 if (!CurModule.LateResolveTypes.empty()) {
3081 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3082 if (DID.Type == ValID::LocalName) {
3083 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3085 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3088 delete ParserResult;
3092 // Emit an error if there are any unresolved values left.
3093 if (!CurModule.LateResolveValues.empty()) {
3094 Value *V = CurModule.LateResolveValues.back();
3095 std::map<Value*, std::pair<ValID, int> >::iterator I =
3096 CurModule.PlaceHolderInfo.find(V);
3098 if (I != CurModule.PlaceHolderInfo.end()) {
3099 ValID &DID = I->second.first;
3100 if (DID.Type == ValID::LocalName) {
3101 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3103 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3106 delete ParserResult;
3111 // Check to make sure that parsing produced a result
3115 // Reset ParserResult variable while saving its value for the result.
3116 Module *Result = ParserResult;
3122 void llvm::GenerateError(const std::string &message, int LineNo) {
3123 if (LineNo == -1) LineNo = llvmAsmlineno;
3124 // TODO: column number in exception
3126 TheParseError->setError(CurFilename, message, LineNo);
3130 int yyerror(const char *ErrorMsg) {
3132 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3133 + ":" + utostr((unsigned) llvmAsmlineno) + ": ";
3134 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3135 if (yychar != YYEMPTY && yychar != 0)
3136 errMsg += " while reading token: '" + std::string(llvmAsmtext, llvmAsmleng)+
3138 GenerateError(errMsg);