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
1055 %token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT
1056 %type <StrVal> LocalName OptLocalName OptLocalAssign
1057 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1058 %type <UIntVal> OptAlign OptCAlign
1059 %type <StrVal> OptSection SectionString
1061 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1062 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1063 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1064 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1065 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN
1066 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1067 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1069 %type <UIntVal> OptCallingConv
1070 %type <ParamAttrs> OptParamAttrs ParamAttr
1071 %type <ParamAttrs> OptFuncAttrs FuncAttr
1073 // Basic Block Terminating Operators
1074 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1077 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1078 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1079 %token <BinaryOpVal> SHL LSHR ASHR
1081 %token <OtherOpVal> ICMP FCMP
1082 %type <IPredicate> IPredicates
1083 %type <FPredicate> FPredicates
1084 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1085 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1087 // Memory Instructions
1088 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1091 %type <CastOpVal> CastOps
1092 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1093 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1096 %token <OtherOpVal> PHI_TOK SELECT VAARG
1097 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1099 // Function Attributes
1100 %token NORETURN INREG SRET NOUNWIND
1102 // Visibility Styles
1103 %token DEFAULT HIDDEN PROTECTED
1109 // Operations that are notably excluded from this list include:
1110 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1112 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1113 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1114 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1115 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1118 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1119 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1120 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1121 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1122 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1126 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1127 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1128 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1129 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1130 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1131 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1132 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1133 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1134 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1137 // These are some types that allow classification if we only want a particular
1138 // thing... for example, only a signed, unsigned, or integral type.
1140 FPType : FLOAT | DOUBLE;
1142 LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT
1143 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1145 /// OptLocalAssign - Value producing statements have an optional assignment
1147 OptLocalAssign : LocalName '=' {
1156 GlobalName : GLOBALVAR | ATSTRINGCONSTANT;
1158 OptGlobalAssign : GlobalAssign
1164 GlobalAssign : GlobalName '=' {
1170 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1171 | WEAK { $$ = GlobalValue::WeakLinkage; }
1172 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1173 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1174 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1178 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1179 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1180 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1184 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1185 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1186 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1187 | PROTECTED { $$ = GlobalValue::ProtectedVisibility; }
1190 FunctionDeclareLinkage
1191 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1192 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1193 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1196 FunctionDefineLinkage
1197 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1198 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1199 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1200 | WEAK { $$ = GlobalValue::WeakLinkage; }
1201 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1205 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1206 | WEAK { $$ = GlobalValue::WeakLinkage; }
1207 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1210 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1211 CCC_TOK { $$ = CallingConv::C; } |
1212 FASTCC_TOK { $$ = CallingConv::Fast; } |
1213 COLDCC_TOK { $$ = CallingConv::Cold; } |
1214 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1215 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1217 if ((unsigned)$2 != $2)
1218 GEN_ERROR("Calling conv too large");
1223 ParamAttr : ZEXT { $$ = ParamAttr::ZExt; }
1224 | SEXT { $$ = ParamAttr::SExt; }
1225 | INREG { $$ = ParamAttr::InReg; }
1226 | SRET { $$ = ParamAttr::StructRet; }
1229 OptParamAttrs : /* empty */ { $$ = ParamAttr::None; }
1230 | OptParamAttrs ParamAttr {
1235 FuncAttr : NORETURN { $$ = ParamAttr::NoReturn; }
1236 | NOUNWIND { $$ = ParamAttr::NoUnwind; }
1240 OptFuncAttrs : /* empty */ { $$ = ParamAttr::None; }
1241 | OptFuncAttrs FuncAttr {
1246 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1247 // a comma before it.
1248 OptAlign : /*empty*/ { $$ = 0; } |
1251 if ($$ != 0 && !isPowerOf2_32($$))
1252 GEN_ERROR("Alignment must be a power of two");
1255 OptCAlign : /*empty*/ { $$ = 0; } |
1256 ',' ALIGN EUINT64VAL {
1258 if ($$ != 0 && !isPowerOf2_32($$))
1259 GEN_ERROR("Alignment must be a power of two");
1264 SectionString : SECTION STRINGCONSTANT {
1265 for (unsigned i = 0, e = strlen($2); i != e; ++i)
1266 if ($2[i] == '"' || $2[i] == '\\')
1267 GEN_ERROR("Invalid character in section name");
1272 OptSection : /*empty*/ { $$ = 0; } |
1273 SectionString { $$ = $1; };
1275 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1276 // is set to be the global we are processing.
1278 GlobalVarAttributes : /* empty */ {} |
1279 ',' GlobalVarAttribute GlobalVarAttributes {};
1280 GlobalVarAttribute : SectionString {
1281 CurGV->setSection($1);
1285 | ALIGN EUINT64VAL {
1286 if ($2 != 0 && !isPowerOf2_32($2))
1287 GEN_ERROR("Alignment must be a power of two");
1288 CurGV->setAlignment($2);
1292 //===----------------------------------------------------------------------===//
1293 // Types includes all predefined types... except void, because it can only be
1294 // used in specific contexts (function returning void for example).
1296 // Derived types are added later...
1298 PrimType : INTTYPE | FLOAT | DOUBLE | LABEL ;
1302 $$ = new PATypeHolder(OpaqueType::get());
1306 $$ = new PATypeHolder($1);
1309 | Types '*' { // Pointer type?
1310 if (*$1 == Type::LabelTy)
1311 GEN_ERROR("Cannot form a pointer to a basic block");
1312 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1)));
1316 | SymbolicValueRef { // Named types are also simple types...
1317 const Type* tmp = getTypeVal($1);
1319 $$ = new PATypeHolder(tmp);
1321 | '\\' EUINT64VAL { // Type UpReference
1322 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1323 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1324 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1325 $$ = new PATypeHolder(OT);
1326 UR_OUT("New Upreference!\n");
1329 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1330 std::vector<const Type*> Params;
1331 ParamAttrsVector Attrs;
1332 if ($5 != ParamAttr::None) {
1333 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1337 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1338 for (; I != E; ++I, ++index) {
1339 const Type *Ty = I->Ty->get();
1340 Params.push_back(Ty);
1341 if (Ty != Type::VoidTy)
1342 if (I->Attrs != ParamAttr::None) {
1343 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1347 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1348 if (isVarArg) Params.pop_back();
1350 ParamAttrsList *ActualAttrs = 0;
1352 ActualAttrs = ParamAttrsList::get(Attrs);
1353 FunctionType *FT = FunctionType::get(*$1, Params, isVarArg, ActualAttrs);
1354 delete $3; // Delete the argument list
1355 delete $1; // Delete the return type handle
1356 $$ = new PATypeHolder(HandleUpRefs(FT));
1359 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1360 std::vector<const Type*> Params;
1361 ParamAttrsVector Attrs;
1362 if ($5 != ParamAttr::None) {
1363 ParamAttrsWithIndex X; X.index = 0; X.attrs = $5;
1366 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1368 for ( ; I != E; ++I, ++index) {
1369 const Type* Ty = I->Ty->get();
1370 Params.push_back(Ty);
1371 if (Ty != Type::VoidTy)
1372 if (I->Attrs != ParamAttr::None) {
1373 ParamAttrsWithIndex X; X.index = index; X.attrs = I->Attrs;
1377 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1378 if (isVarArg) Params.pop_back();
1380 ParamAttrsList *ActualAttrs = 0;
1382 ActualAttrs = ParamAttrsList::get(Attrs);
1384 FunctionType *FT = FunctionType::get($1, Params, isVarArg, ActualAttrs);
1385 delete $3; // Delete the argument list
1386 $$ = new PATypeHolder(HandleUpRefs(FT));
1390 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1391 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
1395 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1396 const llvm::Type* ElemTy = $4->get();
1397 if ((unsigned)$2 != $2)
1398 GEN_ERROR("Unsigned result not equal to signed result");
1399 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1400 GEN_ERROR("Element type of a VectorType must be primitive");
1401 if (!isPowerOf2_32($2))
1402 GEN_ERROR("Vector length should be a power of 2");
1403 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1407 | '{' TypeListI '}' { // Structure type?
1408 std::vector<const Type*> Elements;
1409 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1410 E = $2->end(); I != E; ++I)
1411 Elements.push_back(*I);
1413 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1417 | '{' '}' { // Empty structure type?
1418 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1421 | '<' '{' TypeListI '}' '>' {
1422 std::vector<const Type*> Elements;
1423 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1424 E = $3->end(); I != E; ++I)
1425 Elements.push_back(*I);
1427 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1431 | '<' '{' '}' '>' { // Empty structure type?
1432 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1438 : Types OptParamAttrs {
1446 if (!UpRefs.empty())
1447 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1448 if (!(*$1)->isFirstClassType())
1449 GEN_ERROR("LLVM functions cannot return aggregate types");
1453 $$ = new PATypeHolder(Type::VoidTy);
1457 ArgTypeList : ArgType {
1458 $$ = new TypeWithAttrsList();
1462 | ArgTypeList ',' ArgType {
1463 ($$=$1)->push_back($3);
1470 | ArgTypeList ',' DOTDOTDOT {
1472 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1473 TWA.Ty = new PATypeHolder(Type::VoidTy);
1478 $$ = new TypeWithAttrsList;
1479 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1480 TWA.Ty = new PATypeHolder(Type::VoidTy);
1485 $$ = new TypeWithAttrsList();
1489 // TypeList - Used for struct declarations and as a basis for function type
1490 // declaration type lists
1493 $$ = new std::list<PATypeHolder>();
1498 | TypeListI ',' Types {
1499 ($$=$1)->push_back(*$3);
1504 // ConstVal - The various declarations that go into the constant pool. This
1505 // production is used ONLY to represent constants that show up AFTER a 'const',
1506 // 'constant' or 'global' token at global scope. Constants that can be inlined
1507 // into other expressions (such as integers and constexprs) are handled by the
1508 // ResolvedVal, ValueRef and ConstValueRef productions.
1510 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1511 if (!UpRefs.empty())
1512 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1513 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1515 GEN_ERROR("Cannot make array constant with type: '" +
1516 (*$1)->getDescription() + "'");
1517 const Type *ETy = ATy->getElementType();
1518 int NumElements = ATy->getNumElements();
1520 // Verify that we have the correct size...
1521 if (NumElements != -1 && NumElements != (int)$3->size())
1522 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1523 utostr($3->size()) + " arguments, but has size of " +
1524 itostr(NumElements) + "");
1526 // Verify all elements are correct type!
1527 for (unsigned i = 0; i < $3->size(); i++) {
1528 if (ETy != (*$3)[i]->getType())
1529 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1530 ETy->getDescription() +"' as required!\nIt is of type '"+
1531 (*$3)[i]->getType()->getDescription() + "'.");
1534 $$ = ConstantArray::get(ATy, *$3);
1535 delete $1; delete $3;
1539 if (!UpRefs.empty())
1540 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1541 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1543 GEN_ERROR("Cannot make array constant with type: '" +
1544 (*$1)->getDescription() + "'");
1546 int NumElements = ATy->getNumElements();
1547 if (NumElements != -1 && NumElements != 0)
1548 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1549 " arguments, but has size of " + itostr(NumElements) +"");
1550 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1554 | Types 'c' STRINGCONSTANT {
1555 if (!UpRefs.empty())
1556 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1557 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1559 GEN_ERROR("Cannot make array constant with type: '" +
1560 (*$1)->getDescription() + "'");
1562 int NumElements = ATy->getNumElements();
1563 const Type *ETy = ATy->getElementType();
1564 char *EndStr = UnEscapeLexed($3, true);
1565 if (NumElements != -1 && NumElements != (EndStr-$3))
1566 GEN_ERROR("Can't build string constant of size " +
1567 itostr((int)(EndStr-$3)) +
1568 " when array has size " + itostr(NumElements) + "");
1569 std::vector<Constant*> Vals;
1570 if (ETy == Type::Int8Ty) {
1571 for (unsigned char *C = (unsigned char *)$3;
1572 C != (unsigned char*)EndStr; ++C)
1573 Vals.push_back(ConstantInt::get(ETy, *C));
1576 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1579 $$ = ConstantArray::get(ATy, Vals);
1583 | Types '<' ConstVector '>' { // Nonempty unsized arr
1584 if (!UpRefs.empty())
1585 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1586 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1588 GEN_ERROR("Cannot make packed constant with type: '" +
1589 (*$1)->getDescription() + "'");
1590 const Type *ETy = PTy->getElementType();
1591 int NumElements = PTy->getNumElements();
1593 // Verify that we have the correct size...
1594 if (NumElements != -1 && NumElements != (int)$3->size())
1595 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1596 utostr($3->size()) + " arguments, but has size of " +
1597 itostr(NumElements) + "");
1599 // Verify all elements are correct type!
1600 for (unsigned i = 0; i < $3->size(); i++) {
1601 if (ETy != (*$3)[i]->getType())
1602 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1603 ETy->getDescription() +"' as required!\nIt is of type '"+
1604 (*$3)[i]->getType()->getDescription() + "'.");
1607 $$ = ConstantVector::get(PTy, *$3);
1608 delete $1; delete $3;
1611 | Types '{' ConstVector '}' {
1612 const StructType *STy = dyn_cast<StructType>($1->get());
1614 GEN_ERROR("Cannot make struct constant with type: '" +
1615 (*$1)->getDescription() + "'");
1617 if ($3->size() != STy->getNumContainedTypes())
1618 GEN_ERROR("Illegal number of initializers for structure type");
1620 // Check to ensure that constants are compatible with the type initializer!
1621 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1622 if ((*$3)[i]->getType() != STy->getElementType(i))
1623 GEN_ERROR("Expected type '" +
1624 STy->getElementType(i)->getDescription() +
1625 "' for element #" + utostr(i) +
1626 " of structure initializer");
1628 // Check to ensure that Type is not packed
1629 if (STy->isPacked())
1630 GEN_ERROR("Unpacked Initializer to vector type '" +
1631 STy->getDescription() + "'");
1633 $$ = ConstantStruct::get(STy, *$3);
1634 delete $1; delete $3;
1638 if (!UpRefs.empty())
1639 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1640 const StructType *STy = dyn_cast<StructType>($1->get());
1642 GEN_ERROR("Cannot make struct constant with type: '" +
1643 (*$1)->getDescription() + "'");
1645 if (STy->getNumContainedTypes() != 0)
1646 GEN_ERROR("Illegal number of initializers for structure type");
1648 // Check to ensure that Type is not packed
1649 if (STy->isPacked())
1650 GEN_ERROR("Unpacked Initializer to vector type '" +
1651 STy->getDescription() + "'");
1653 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1657 | Types '<' '{' ConstVector '}' '>' {
1658 const StructType *STy = dyn_cast<StructType>($1->get());
1660 GEN_ERROR("Cannot make struct constant with type: '" +
1661 (*$1)->getDescription() + "'");
1663 if ($4->size() != STy->getNumContainedTypes())
1664 GEN_ERROR("Illegal number of initializers for structure type");
1666 // Check to ensure that constants are compatible with the type initializer!
1667 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1668 if ((*$4)[i]->getType() != STy->getElementType(i))
1669 GEN_ERROR("Expected type '" +
1670 STy->getElementType(i)->getDescription() +
1671 "' for element #" + utostr(i) +
1672 " of structure initializer");
1674 // Check to ensure that Type is packed
1675 if (!STy->isPacked())
1676 GEN_ERROR("Vector initializer to non-vector type '" +
1677 STy->getDescription() + "'");
1679 $$ = ConstantStruct::get(STy, *$4);
1680 delete $1; delete $4;
1683 | Types '<' '{' '}' '>' {
1684 if (!UpRefs.empty())
1685 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1686 const StructType *STy = dyn_cast<StructType>($1->get());
1688 GEN_ERROR("Cannot make struct constant with type: '" +
1689 (*$1)->getDescription() + "'");
1691 if (STy->getNumContainedTypes() != 0)
1692 GEN_ERROR("Illegal number of initializers for structure type");
1694 // Check to ensure that Type is packed
1695 if (!STy->isPacked())
1696 GEN_ERROR("Vector initializer to non-vector type '" +
1697 STy->getDescription() + "'");
1699 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1704 if (!UpRefs.empty())
1705 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1706 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1708 GEN_ERROR("Cannot make null pointer constant with type: '" +
1709 (*$1)->getDescription() + "'");
1711 $$ = ConstantPointerNull::get(PTy);
1716 if (!UpRefs.empty())
1717 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1718 $$ = UndefValue::get($1->get());
1722 | Types SymbolicValueRef {
1723 if (!UpRefs.empty())
1724 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1725 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1727 GEN_ERROR("Global const reference must be a pointer type");
1729 // ConstExprs can exist in the body of a function, thus creating
1730 // GlobalValues whenever they refer to a variable. Because we are in
1731 // the context of a function, getExistingVal will search the functions
1732 // symbol table instead of the module symbol table for the global symbol,
1733 // which throws things all off. To get around this, we just tell
1734 // getExistingVal that we are at global scope here.
1736 Function *SavedCurFn = CurFun.CurrentFunction;
1737 CurFun.CurrentFunction = 0;
1739 Value *V = getExistingVal(Ty, $2);
1742 CurFun.CurrentFunction = SavedCurFn;
1744 // If this is an initializer for a constant pointer, which is referencing a
1745 // (currently) undefined variable, create a stub now that shall be replaced
1746 // in the future with the right type of variable.
1749 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1750 const PointerType *PT = cast<PointerType>(Ty);
1752 // First check to see if the forward references value is already created!
1753 PerModuleInfo::GlobalRefsType::iterator I =
1754 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1756 if (I != CurModule.GlobalRefs.end()) {
1757 V = I->second; // Placeholder already exists, use it...
1761 if ($2.Type == ValID::GlobalName)
1763 else if ($2.Type != ValID::GlobalID)
1764 GEN_ERROR("Invalid reference to global");
1766 // Create the forward referenced global.
1768 if (const FunctionType *FTy =
1769 dyn_cast<FunctionType>(PT->getElementType())) {
1770 GV = new Function(FTy, GlobalValue::ExternalWeakLinkage, Name,
1771 CurModule.CurrentModule);
1773 GV = new GlobalVariable(PT->getElementType(), false,
1774 GlobalValue::ExternalWeakLinkage, 0,
1775 Name, CurModule.CurrentModule);
1778 // Keep track of the fact that we have a forward ref to recycle it
1779 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1784 $$ = cast<GlobalValue>(V);
1785 delete $1; // Free the type handle
1789 if (!UpRefs.empty())
1790 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1791 if ($1->get() != $2->getType())
1792 GEN_ERROR("Mismatched types for constant expression: " +
1793 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1798 | Types ZEROINITIALIZER {
1799 if (!UpRefs.empty())
1800 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1801 const Type *Ty = $1->get();
1802 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1803 GEN_ERROR("Cannot create a null initialized value of this type");
1804 $$ = Constant::getNullValue(Ty);
1808 | IntType ESINT64VAL { // integral constants
1809 if (!ConstantInt::isValueValidForType($1, $2))
1810 GEN_ERROR("Constant value doesn't fit in type");
1811 $$ = ConstantInt::get($1, $2, true);
1814 | IntType ESAPINTVAL { // arbitrary precision integer constants
1815 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1816 if ($2->getBitWidth() > BitWidth) {
1817 GEN_ERROR("Constant value does not fit in type");
1819 $2->sextOrTrunc(BitWidth);
1820 $$ = ConstantInt::get(*$2);
1824 | IntType EUINT64VAL { // integral constants
1825 if (!ConstantInt::isValueValidForType($1, $2))
1826 GEN_ERROR("Constant value doesn't fit in type");
1827 $$ = ConstantInt::get($1, $2, false);
1830 | IntType EUAPINTVAL { // arbitrary precision integer constants
1831 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1832 if ($2->getBitWidth() > BitWidth) {
1833 GEN_ERROR("Constant value does not fit in type");
1835 $2->zextOrTrunc(BitWidth);
1836 $$ = ConstantInt::get(*$2);
1840 | INTTYPE TRUETOK { // Boolean constants
1841 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1842 $$ = ConstantInt::getTrue();
1845 | INTTYPE FALSETOK { // Boolean constants
1846 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1847 $$ = ConstantInt::getFalse();
1850 | FPType FPVAL { // Float & Double constants
1851 if (!ConstantFP::isValueValidForType($1, $2))
1852 GEN_ERROR("Floating point constant invalid for type");
1853 $$ = ConstantFP::get($1, $2);
1858 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1859 if (!UpRefs.empty())
1860 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1862 const Type *DestTy = $5->get();
1863 if (!CastInst::castIsValid($1, $3, DestTy))
1864 GEN_ERROR("invalid cast opcode for cast from '" +
1865 Val->getType()->getDescription() + "' to '" +
1866 DestTy->getDescription() + "'");
1867 $$ = ConstantExpr::getCast($1, $3, DestTy);
1870 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1871 if (!isa<PointerType>($3->getType()))
1872 GEN_ERROR("GetElementPtr requires a pointer operand");
1875 GetElementPtrInst::getIndexedType($3->getType(), &(*$4)[0], $4->size(),
1878 GEN_ERROR("Index list invalid for constant getelementptr");
1880 SmallVector<Constant*, 8> IdxVec;
1881 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1882 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1883 IdxVec.push_back(C);
1885 GEN_ERROR("Indices to constant getelementptr must be constants");
1889 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1892 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1893 if ($3->getType() != Type::Int1Ty)
1894 GEN_ERROR("Select condition must be of boolean type");
1895 if ($5->getType() != $7->getType())
1896 GEN_ERROR("Select operand types must match");
1897 $$ = ConstantExpr::getSelect($3, $5, $7);
1900 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1901 if ($3->getType() != $5->getType())
1902 GEN_ERROR("Binary operator types must match");
1904 $$ = ConstantExpr::get($1, $3, $5);
1906 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1907 if ($3->getType() != $5->getType())
1908 GEN_ERROR("Logical operator types must match");
1909 if (!$3->getType()->isInteger()) {
1910 if (Instruction::isShift($1) || !isa<VectorType>($3->getType()) ||
1911 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1912 GEN_ERROR("Logical operator requires integral operands");
1914 $$ = ConstantExpr::get($1, $3, $5);
1917 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1918 if ($4->getType() != $6->getType())
1919 GEN_ERROR("icmp operand types must match");
1920 $$ = ConstantExpr::getICmp($2, $4, $6);
1922 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1923 if ($4->getType() != $6->getType())
1924 GEN_ERROR("fcmp operand types must match");
1925 $$ = ConstantExpr::getFCmp($2, $4, $6);
1927 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1928 if (!ExtractElementInst::isValidOperands($3, $5))
1929 GEN_ERROR("Invalid extractelement operands");
1930 $$ = ConstantExpr::getExtractElement($3, $5);
1933 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1934 if (!InsertElementInst::isValidOperands($3, $5, $7))
1935 GEN_ERROR("Invalid insertelement operands");
1936 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1939 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1940 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
1941 GEN_ERROR("Invalid shufflevector operands");
1942 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
1947 // ConstVector - A list of comma separated constants.
1948 ConstVector : ConstVector ',' ConstVal {
1949 ($$ = $1)->push_back($3);
1953 $$ = new std::vector<Constant*>();
1959 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
1960 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
1963 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
1965 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
1966 AliaseeRef : ResultTypes SymbolicValueRef {
1967 const Type* VTy = $1->get();
1968 Value *V = getVal(VTy, $2);
1969 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
1971 GEN_ERROR("Aliases can be created only to global values");
1977 | BITCAST '(' AliaseeRef TO Types ')' {
1979 const Type *DestTy = $5->get();
1980 if (!CastInst::castIsValid($1, $3, DestTy))
1981 GEN_ERROR("invalid cast opcode for cast from '" +
1982 Val->getType()->getDescription() + "' to '" +
1983 DestTy->getDescription() + "'");
1985 $$ = ConstantExpr::getCast($1, $3, DestTy);
1990 //===----------------------------------------------------------------------===//
1991 // Rules to match Modules
1992 //===----------------------------------------------------------------------===//
1994 // Module rule: Capture the result of parsing the whole file into a result
1999 $$ = ParserResult = CurModule.CurrentModule;
2000 CurModule.ModuleDone();
2004 $$ = ParserResult = CurModule.CurrentModule;
2005 CurModule.ModuleDone();
2012 | DefinitionList Definition
2016 : DEFINE { CurFun.isDeclare = false; } Function {
2017 CurFun.FunctionDone();
2020 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2023 | MODULE ASM_TOK AsmBlock {
2026 | OptLocalAssign TYPE Types {
2027 if (!UpRefs.empty())
2028 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2029 // Eagerly resolve types. This is not an optimization, this is a
2030 // requirement that is due to the fact that we could have this:
2032 // %list = type { %list * }
2033 // %list = type { %list * } ; repeated type decl
2035 // If types are not resolved eagerly, then the two types will not be
2036 // determined to be the same type!
2038 ResolveTypeTo($1, *$3);
2040 if (!setTypeName(*$3, $1) && !$1) {
2042 // If this is a named type that is not a redefinition, add it to the slot
2044 CurModule.Types.push_back(*$3);
2050 | OptLocalAssign TYPE VOID {
2051 ResolveTypeTo($1, $3);
2053 if (!setTypeName($3, $1) && !$1) {
2055 // If this is a named type that is not a redefinition, add it to the slot
2057 CurModule.Types.push_back($3);
2061 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal {
2062 /* "Externally Visible" Linkage */
2064 GEN_ERROR("Global value initializer is not a constant");
2065 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2066 $2, $4, $5->getType(), $5, $3);
2068 } GlobalVarAttributes {
2071 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2074 GEN_ERROR("Global value initializer is not a constant");
2075 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4);
2077 } GlobalVarAttributes {
2080 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2082 if (!UpRefs.empty())
2083 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2084 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4);
2087 } GlobalVarAttributes {
2091 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2092 std::string Name($1);
2094 GEN_ERROR("Alias name cannot be empty");
2096 Constant* Aliasee = $5;
2098 GEN_ERROR(std::string("Invalid aliasee for alias: ") + $1);
2100 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2101 CurModule.CurrentModule);
2102 GA->setVisibility($2);
2103 InsertValue(GA, CurModule.Values);
2106 | TARGET TargetDefinition {
2109 | DEPLIBS '=' LibrariesDefinition {
2115 AsmBlock : STRINGCONSTANT {
2116 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2117 char *EndStr = UnEscapeLexed($1, true);
2118 std::string NewAsm($1, EndStr);
2121 if (AsmSoFar.empty())
2122 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2124 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2128 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2129 CurModule.CurrentModule->setTargetTriple($3);
2132 | DATALAYOUT '=' STRINGCONSTANT {
2133 CurModule.CurrentModule->setDataLayout($3);
2137 LibrariesDefinition : '[' LibList ']';
2139 LibList : LibList ',' STRINGCONSTANT {
2140 CurModule.CurrentModule->addLibrary($3);
2145 CurModule.CurrentModule->addLibrary($1);
2149 | /* empty: end of list */ {
2154 //===----------------------------------------------------------------------===//
2155 // Rules to match Function Headers
2156 //===----------------------------------------------------------------------===//
2158 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2159 if (!UpRefs.empty())
2160 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2161 if (*$3 == Type::VoidTy)
2162 GEN_ERROR("void typed arguments are invalid");
2163 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2168 | Types OptParamAttrs OptLocalName {
2169 if (!UpRefs.empty())
2170 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2171 if (*$1 == Type::VoidTy)
2172 GEN_ERROR("void typed arguments are invalid");
2173 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2174 $$ = new ArgListType;
2179 ArgList : ArgListH {
2183 | ArgListH ',' DOTDOTDOT {
2185 struct ArgListEntry E;
2186 E.Ty = new PATypeHolder(Type::VoidTy);
2188 E.Attrs = ParamAttr::None;
2193 $$ = new ArgListType;
2194 struct ArgListEntry E;
2195 E.Ty = new PATypeHolder(Type::VoidTy);
2197 E.Attrs = ParamAttr::None;
2206 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2207 OptFuncAttrs OptSection OptAlign {
2209 std::string FunctionName($3);
2210 free($3); // Free strdup'd memory!
2212 // Check the function result for abstractness if this is a define. We should
2213 // have no abstract types at this point
2214 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2215 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2217 std::vector<const Type*> ParamTypeList;
2218 ParamAttrsVector Attrs;
2219 if ($7 != ParamAttr::None) {
2220 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $7;
2221 Attrs.push_back(PAWI);
2223 if ($5) { // If there are arguments...
2225 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I, ++index) {
2226 const Type* Ty = I->Ty->get();
2227 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2228 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2229 ParamTypeList.push_back(Ty);
2230 if (Ty != Type::VoidTy)
2231 if (I->Attrs != ParamAttr::None) {
2232 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2233 Attrs.push_back(PAWI);
2238 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2239 if (isVarArg) ParamTypeList.pop_back();
2241 ParamAttrsList *PAL = 0;
2243 PAL = ParamAttrsList::get(Attrs);
2245 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg, PAL);
2246 const PointerType *PFT = PointerType::get(FT);
2250 if (!FunctionName.empty()) {
2251 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2253 ID = ValID::createGlobalID(CurModule.Values.size());
2257 // See if this function was forward referenced. If so, recycle the object.
2258 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2259 // Move the function to the end of the list, from whereever it was
2260 // previously inserted.
2261 Fn = cast<Function>(FWRef);
2262 CurModule.CurrentModule->getFunctionList().remove(Fn);
2263 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2264 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2265 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2266 if (Fn->getFunctionType() != FT) {
2267 // The existing function doesn't have the same type. This is an overload
2269 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2270 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2271 // Neither the existing or the current function is a declaration and they
2272 // have the same name and same type. Clearly this is a redefinition.
2273 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2274 } if (Fn->isDeclaration()) {
2275 // Make sure to strip off any argument names so we can't get conflicts.
2276 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2280 } else { // Not already defined?
2281 Fn = new Function(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2282 CurModule.CurrentModule);
2284 InsertValue(Fn, CurModule.Values);
2287 CurFun.FunctionStart(Fn);
2289 if (CurFun.isDeclare) {
2290 // If we have declaration, always overwrite linkage. This will allow us to
2291 // correctly handle cases, when pointer to function is passed as argument to
2292 // another function.
2293 Fn->setLinkage(CurFun.Linkage);
2294 Fn->setVisibility(CurFun.Visibility);
2296 Fn->setCallingConv($1);
2297 Fn->setAlignment($9);
2303 // Add all of the arguments we parsed to the function...
2304 if ($5) { // Is null if empty...
2305 if (isVarArg) { // Nuke the last entry
2306 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2307 "Not a varargs marker!");
2308 delete $5->back().Ty;
2309 $5->pop_back(); // Delete the last entry
2311 Function::arg_iterator ArgIt = Fn->arg_begin();
2312 Function::arg_iterator ArgEnd = Fn->arg_end();
2314 for (ArgListType::iterator I = $5->begin();
2315 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2316 delete I->Ty; // Delete the typeholder...
2317 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2323 delete $5; // We're now done with the argument list
2328 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2330 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2331 $$ = CurFun.CurrentFunction;
2333 // Make sure that we keep track of the linkage type even if there was a
2334 // previous "declare".
2336 $$->setVisibility($2);
2339 END : ENDTOK | '}'; // Allow end of '}' to end a function
2341 Function : BasicBlockList END {
2346 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2347 CurFun.CurrentFunction->setLinkage($1);
2348 CurFun.CurrentFunction->setVisibility($2);
2349 $$ = CurFun.CurrentFunction;
2350 CurFun.FunctionDone();
2354 //===----------------------------------------------------------------------===//
2355 // Rules to match Basic Blocks
2356 //===----------------------------------------------------------------------===//
2358 OptSideEffect : /* empty */ {
2367 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2368 $$ = ValID::create($1);
2372 $$ = ValID::create($1);
2375 | FPVAL { // Perhaps it's an FP constant?
2376 $$ = ValID::create($1);
2380 $$ = ValID::create(ConstantInt::getTrue());
2384 $$ = ValID::create(ConstantInt::getFalse());
2388 $$ = ValID::createNull();
2392 $$ = ValID::createUndef();
2395 | ZEROINITIALIZER { // A vector zero constant.
2396 $$ = ValID::createZeroInit();
2399 | '<' ConstVector '>' { // Nonempty unsized packed vector
2400 const Type *ETy = (*$2)[0]->getType();
2401 int NumElements = $2->size();
2403 VectorType* pt = VectorType::get(ETy, NumElements);
2404 PATypeHolder* PTy = new PATypeHolder(
2412 // Verify all elements are correct type!
2413 for (unsigned i = 0; i < $2->size(); i++) {
2414 if (ETy != (*$2)[i]->getType())
2415 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2416 ETy->getDescription() +"' as required!\nIt is of type '" +
2417 (*$2)[i]->getType()->getDescription() + "'.");
2420 $$ = ValID::create(ConstantVector::get(pt, *$2));
2421 delete PTy; delete $2;
2425 $$ = ValID::create($1);
2428 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2429 char *End = UnEscapeLexed($3, true);
2430 std::string AsmStr = std::string($3, End);
2431 End = UnEscapeLexed($5, true);
2432 std::string Constraints = std::string($5, End);
2433 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
2439 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2442 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2443 $$ = ValID::createLocalID($1);
2447 $$ = ValID::createGlobalID($1);
2450 | LocalName { // Is it a named reference...?
2451 $$ = ValID::createLocalName($1);
2454 | GlobalName { // Is it a named reference...?
2455 $$ = ValID::createGlobalName($1);
2459 // ValueRef - A reference to a definition... either constant or symbolic
2460 ValueRef : SymbolicValueRef | ConstValueRef;
2463 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2464 // type immediately preceeds the value reference, and allows complex constant
2465 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2466 ResolvedVal : Types ValueRef {
2467 if (!UpRefs.empty())
2468 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2469 $$ = getVal(*$1, $2);
2475 BasicBlockList : BasicBlockList BasicBlock {
2479 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2485 // Basic blocks are terminated by branching instructions:
2486 // br, br/cc, switch, ret
2488 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2489 setValueName($3, $2);
2492 $1->getInstList().push_back($3);
2497 InstructionList : InstructionList Inst {
2498 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2499 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2500 if (CI2->getParent() == 0)
2501 $1->getInstList().push_back(CI2);
2502 $1->getInstList().push_back($2);
2506 | /* empty */ { // Empty space between instruction lists
2507 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2510 | LABELSTR { // Labelled (named) basic block
2511 $$ = defineBBVal(ValID::createLocalName($1));
2515 BBTerminatorInst : RET ResolvedVal { // Return with a result...
2516 $$ = new ReturnInst($2);
2519 | RET VOID { // Return with no result...
2520 $$ = new ReturnInst();
2523 | BR LABEL ValueRef { // Unconditional Branch...
2524 BasicBlock* tmpBB = getBBVal($3);
2526 $$ = new BranchInst(tmpBB);
2527 } // Conditional Branch...
2528 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2529 assert(cast<IntegerType>($2)->getBitWidth() == 1 && "Not Bool?");
2530 BasicBlock* tmpBBA = getBBVal($6);
2532 BasicBlock* tmpBBB = getBBVal($9);
2534 Value* tmpVal = getVal(Type::Int1Ty, $3);
2536 $$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
2538 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2539 Value* tmpVal = getVal($2, $3);
2541 BasicBlock* tmpBB = getBBVal($6);
2543 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
2546 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2548 for (; I != E; ++I) {
2549 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2550 S->addCase(CI, I->second);
2552 GEN_ERROR("Switch case is constant, but not a simple integer");
2557 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2558 Value* tmpVal = getVal($2, $3);
2560 BasicBlock* tmpBB = getBBVal($6);
2562 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
2566 | INVOKE OptCallingConv ResultTypes ValueRef '(' ValueRefList ')' OptFuncAttrs
2567 TO LABEL ValueRef UNWIND LABEL ValueRef {
2569 // Handle the short syntax
2570 const PointerType *PFTy = 0;
2571 const FunctionType *Ty = 0;
2572 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2573 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2574 // Pull out the types of all of the arguments...
2575 std::vector<const Type*> ParamTypes;
2576 ParamAttrsVector Attrs;
2577 if ($8 != ParamAttr::None) {
2578 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2579 Attrs.push_back(PAWI);
2581 ValueRefList::iterator I = $6->begin(), E = $6->end();
2583 for (; I != E; ++I, ++index) {
2584 const Type *Ty = I->Val->getType();
2585 if (Ty == Type::VoidTy)
2586 GEN_ERROR("Short call syntax cannot be used with varargs");
2587 ParamTypes.push_back(Ty);
2588 if (I->Attrs != ParamAttr::None) {
2589 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2590 Attrs.push_back(PAWI);
2594 ParamAttrsList *PAL = 0;
2596 PAL = ParamAttrsList::get(Attrs);
2597 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2598 PFTy = PointerType::get(Ty);
2603 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2605 BasicBlock *Normal = getBBVal($11);
2607 BasicBlock *Except = getBBVal($14);
2610 // Check the arguments
2612 if ($6->empty()) { // Has no arguments?
2613 // Make sure no arguments is a good thing!
2614 if (Ty->getNumParams() != 0)
2615 GEN_ERROR("No arguments passed to a function that "
2616 "expects arguments");
2617 } else { // Has arguments?
2618 // Loop through FunctionType's arguments and ensure they are specified
2620 FunctionType::param_iterator I = Ty->param_begin();
2621 FunctionType::param_iterator E = Ty->param_end();
2622 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2624 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2625 if (ArgI->Val->getType() != *I)
2626 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2627 (*I)->getDescription() + "'");
2628 Args.push_back(ArgI->Val);
2631 if (Ty->isVarArg()) {
2633 for (; ArgI != ArgE; ++ArgI)
2634 Args.push_back(ArgI->Val); // push the remaining varargs
2635 } else if (I != E || ArgI != ArgE)
2636 GEN_ERROR("Invalid number of parameters detected");
2639 // Create the InvokeInst
2640 InvokeInst *II = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
2641 II->setCallingConv($2);
2647 $$ = new UnwindInst();
2651 $$ = new UnreachableInst();
2657 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2659 Constant *V = cast<Constant>(getExistingVal($2, $3));
2662 GEN_ERROR("May only switch on a constant pool value");
2664 BasicBlock* tmpBB = getBBVal($6);
2666 $$->push_back(std::make_pair(V, tmpBB));
2668 | IntType ConstValueRef ',' LABEL ValueRef {
2669 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2670 Constant *V = cast<Constant>(getExistingVal($1, $2));
2674 GEN_ERROR("May only switch on a constant pool value");
2676 BasicBlock* tmpBB = getBBVal($5);
2678 $$->push_back(std::make_pair(V, tmpBB));
2681 Inst : OptLocalAssign InstVal {
2682 // Is this definition named?? if so, assign the name...
2683 setValueName($2, $1);
2691 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2692 if (!UpRefs.empty())
2693 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2694 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2695 Value* tmpVal = getVal(*$1, $3);
2697 BasicBlock* tmpBB = getBBVal($5);
2699 $$->push_back(std::make_pair(tmpVal, tmpBB));
2702 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2704 Value* tmpVal = getVal($1->front().first->getType(), $4);
2706 BasicBlock* tmpBB = getBBVal($6);
2708 $1->push_back(std::make_pair(tmpVal, tmpBB));
2712 ValueRefList : Types ValueRef OptParamAttrs {
2713 if (!UpRefs.empty())
2714 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2715 // Used for call and invoke instructions
2716 $$ = new ValueRefList();
2717 ValueRefListEntry E; E.Attrs = $3; E.Val = getVal($1->get(), $2);
2721 | ValueRefList ',' Types ValueRef OptParamAttrs {
2722 if (!UpRefs.empty())
2723 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2725 ValueRefListEntry E; E.Attrs = $5; E.Val = getVal($3->get(), $4);
2730 | /*empty*/ { $$ = new ValueRefList(); };
2732 IndexList // Used for gep instructions and constant expressions
2733 : /*empty*/ { $$ = new std::vector<Value*>(); }
2734 | IndexList ',' ResolvedVal {
2741 OptTailCall : TAIL CALL {
2750 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
2751 if (!UpRefs.empty())
2752 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2753 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
2754 !isa<VectorType>((*$2).get()))
2756 "Arithmetic operator requires integer, FP, or packed operands");
2757 if (isa<VectorType>((*$2).get()) &&
2758 ($1 == Instruction::URem ||
2759 $1 == Instruction::SRem ||
2760 $1 == Instruction::FRem))
2761 GEN_ERROR("Remainder not supported on vector types");
2762 Value* val1 = getVal(*$2, $3);
2764 Value* val2 = getVal(*$2, $5);
2766 $$ = BinaryOperator::create($1, val1, val2);
2768 GEN_ERROR("binary operator returned null");
2771 | LogicalOps Types ValueRef ',' ValueRef {
2772 if (!UpRefs.empty())
2773 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2774 if (!(*$2)->isInteger()) {
2775 if (Instruction::isShift($1) || !isa<VectorType>($2->get()) ||
2776 !cast<VectorType>($2->get())->getElementType()->isInteger())
2777 GEN_ERROR("Logical operator requires integral operands");
2779 Value* tmpVal1 = getVal(*$2, $3);
2781 Value* tmpVal2 = getVal(*$2, $5);
2783 $$ = BinaryOperator::create($1, tmpVal1, tmpVal2);
2785 GEN_ERROR("binary operator returned null");
2788 | ICMP IPredicates Types ValueRef ',' ValueRef {
2789 if (!UpRefs.empty())
2790 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2791 if (isa<VectorType>((*$3).get()))
2792 GEN_ERROR("Vector types not supported by icmp instruction");
2793 Value* tmpVal1 = getVal(*$3, $4);
2795 Value* tmpVal2 = getVal(*$3, $6);
2797 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2799 GEN_ERROR("icmp operator returned null");
2802 | FCMP FPredicates Types ValueRef ',' ValueRef {
2803 if (!UpRefs.empty())
2804 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2805 if (isa<VectorType>((*$3).get()))
2806 GEN_ERROR("Vector types not supported by fcmp instruction");
2807 Value* tmpVal1 = getVal(*$3, $4);
2809 Value* tmpVal2 = getVal(*$3, $6);
2811 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2813 GEN_ERROR("fcmp operator returned null");
2816 | CastOps ResolvedVal TO Types {
2817 if (!UpRefs.empty())
2818 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2820 const Type* DestTy = $4->get();
2821 if (!CastInst::castIsValid($1, Val, DestTy))
2822 GEN_ERROR("invalid cast opcode for cast from '" +
2823 Val->getType()->getDescription() + "' to '" +
2824 DestTy->getDescription() + "'");
2825 $$ = CastInst::create($1, Val, DestTy);
2828 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2829 if ($2->getType() != Type::Int1Ty)
2830 GEN_ERROR("select condition must be boolean");
2831 if ($4->getType() != $6->getType())
2832 GEN_ERROR("select value types should match");
2833 $$ = new SelectInst($2, $4, $6);
2836 | VAARG ResolvedVal ',' Types {
2837 if (!UpRefs.empty())
2838 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2839 $$ = new VAArgInst($2, *$4);
2843 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
2844 if (!ExtractElementInst::isValidOperands($2, $4))
2845 GEN_ERROR("Invalid extractelement operands");
2846 $$ = new ExtractElementInst($2, $4);
2849 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2850 if (!InsertElementInst::isValidOperands($2, $4, $6))
2851 GEN_ERROR("Invalid insertelement operands");
2852 $$ = new InsertElementInst($2, $4, $6);
2855 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2856 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
2857 GEN_ERROR("Invalid shufflevector operands");
2858 $$ = new ShuffleVectorInst($2, $4, $6);
2862 const Type *Ty = $2->front().first->getType();
2863 if (!Ty->isFirstClassType())
2864 GEN_ERROR("PHI node operands must be of first class type");
2865 $$ = new PHINode(Ty);
2866 ((PHINode*)$$)->reserveOperandSpace($2->size());
2867 while ($2->begin() != $2->end()) {
2868 if ($2->front().first->getType() != Ty)
2869 GEN_ERROR("All elements of a PHI node must be of the same type");
2870 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
2873 delete $2; // Free the list...
2876 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ValueRefList ')'
2879 // Handle the short syntax
2880 const PointerType *PFTy = 0;
2881 const FunctionType *Ty = 0;
2882 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2883 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2884 // Pull out the types of all of the arguments...
2885 std::vector<const Type*> ParamTypes;
2886 ParamAttrsVector Attrs;
2887 if ($8 != ParamAttr::None) {
2888 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2889 Attrs.push_back(PAWI);
2892 ValueRefList::iterator I = $6->begin(), E = $6->end();
2893 for (; I != E; ++I, ++index) {
2894 const Type *Ty = I->Val->getType();
2895 if (Ty == Type::VoidTy)
2896 GEN_ERROR("Short call syntax cannot be used with varargs");
2897 ParamTypes.push_back(Ty);
2898 if (I->Attrs != ParamAttr::None) {
2899 ParamAttrsWithIndex PAWI; PAWI.index = index; PAWI.attrs = I->Attrs;
2900 Attrs.push_back(PAWI);
2904 ParamAttrsList *PAL = 0;
2906 PAL = ParamAttrsList::get(Attrs);
2908 Ty = FunctionType::get($3->get(), ParamTypes, false, PAL);
2909 PFTy = PointerType::get(Ty);
2912 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2915 // Check for call to invalid intrinsic to avoid crashing later.
2916 if (Function *theF = dyn_cast<Function>(V)) {
2917 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
2918 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
2919 !theF->getIntrinsicID(true))
2920 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
2921 theF->getName() + "'");
2924 // Check the arguments
2926 if ($6->empty()) { // Has no arguments?
2927 // Make sure no arguments is a good thing!
2928 if (Ty->getNumParams() != 0)
2929 GEN_ERROR("No arguments passed to a function that "
2930 "expects arguments");
2931 } else { // Has arguments?
2932 // Loop through FunctionType's arguments and ensure they are specified
2935 FunctionType::param_iterator I = Ty->param_begin();
2936 FunctionType::param_iterator E = Ty->param_end();
2937 ValueRefList::iterator ArgI = $6->begin(), ArgE = $6->end();
2939 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
2940 if (ArgI->Val->getType() != *I)
2941 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2942 (*I)->getDescription() + "'");
2943 Args.push_back(ArgI->Val);
2945 if (Ty->isVarArg()) {
2947 for (; ArgI != ArgE; ++ArgI)
2948 Args.push_back(ArgI->Val); // push the remaining varargs
2949 } else if (I != E || ArgI != ArgE)
2950 GEN_ERROR("Invalid number of parameters detected");
2952 // Create the call node
2953 CallInst *CI = new CallInst(V, &Args[0], Args.size());
2954 CI->setTailCall($1);
2955 CI->setCallingConv($2);
2966 OptVolatile : VOLATILE {
2977 MemoryInst : MALLOC Types OptCAlign {
2978 if (!UpRefs.empty())
2979 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2980 $$ = new MallocInst(*$2, 0, $3);
2984 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
2985 if (!UpRefs.empty())
2986 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2987 Value* tmpVal = getVal($4, $5);
2989 $$ = new MallocInst(*$2, tmpVal, $6);
2992 | ALLOCA Types OptCAlign {
2993 if (!UpRefs.empty())
2994 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2995 $$ = new AllocaInst(*$2, 0, $3);
2999 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
3000 if (!UpRefs.empty())
3001 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3002 Value* tmpVal = getVal($4, $5);
3004 $$ = new AllocaInst(*$2, tmpVal, $6);
3007 | FREE ResolvedVal {
3008 if (!isa<PointerType>($2->getType()))
3009 GEN_ERROR("Trying to free nonpointer type " +
3010 $2->getType()->getDescription() + "");
3011 $$ = new FreeInst($2);
3015 | OptVolatile LOAD Types ValueRef OptCAlign {
3016 if (!UpRefs.empty())
3017 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3018 if (!isa<PointerType>($3->get()))
3019 GEN_ERROR("Can't load from nonpointer type: " +
3020 (*$3)->getDescription());
3021 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3022 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3023 (*$3)->getDescription());
3024 Value* tmpVal = getVal(*$3, $4);
3026 $$ = new LoadInst(tmpVal, "", $1, $5);
3029 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3030 if (!UpRefs.empty())
3031 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3032 const PointerType *PT = dyn_cast<PointerType>($5->get());
3034 GEN_ERROR("Can't store to a nonpointer type: " +
3035 (*$5)->getDescription());
3036 const Type *ElTy = PT->getElementType();
3037 if (ElTy != $3->getType())
3038 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3039 "' into space of type '" + ElTy->getDescription() + "'");
3041 Value* tmpVal = getVal(*$5, $6);
3043 $$ = new StoreInst($3, tmpVal, $1, $7);
3046 | GETELEMENTPTR Types ValueRef IndexList {
3047 if (!UpRefs.empty())
3048 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3049 if (!isa<PointerType>($2->get()))
3050 GEN_ERROR("getelementptr insn requires pointer operand");
3052 if (!GetElementPtrInst::getIndexedType(*$2, &(*$4)[0], $4->size(), true))
3053 GEN_ERROR("Invalid getelementptr indices for type '" +
3054 (*$2)->getDescription()+ "'");
3055 Value* tmpVal = getVal(*$2, $3);
3057 $$ = new GetElementPtrInst(tmpVal, &(*$4)[0], $4->size());
3065 // common code from the two 'RunVMAsmParser' functions
3066 static Module* RunParser(Module * M) {
3068 llvmAsmlineno = 1; // Reset the current line number...
3069 CurModule.CurrentModule = M;
3074 // Check to make sure the parser succeeded
3077 delete ParserResult;
3081 // Emit an error if there are any unresolved types left.
3082 if (!CurModule.LateResolveTypes.empty()) {
3083 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3084 if (DID.Type == ValID::LocalName) {
3085 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3087 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3090 delete ParserResult;
3094 // Emit an error if there are any unresolved values left.
3095 if (!CurModule.LateResolveValues.empty()) {
3096 Value *V = CurModule.LateResolveValues.back();
3097 std::map<Value*, std::pair<ValID, int> >::iterator I =
3098 CurModule.PlaceHolderInfo.find(V);
3100 if (I != CurModule.PlaceHolderInfo.end()) {
3101 ValID &DID = I->second.first;
3102 if (DID.Type == ValID::LocalName) {
3103 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3105 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3108 delete ParserResult;
3113 // Check to make sure that parsing produced a result
3117 // Reset ParserResult variable while saving its value for the result.
3118 Module *Result = ParserResult;
3124 void llvm::GenerateError(const std::string &message, int LineNo) {
3125 if (LineNo == -1) LineNo = llvmAsmlineno;
3126 // TODO: column number in exception
3128 TheParseError->setError(CurFilename, message, LineNo);
3132 int yyerror(const char *ErrorMsg) {
3134 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3135 + ":" + utostr((unsigned) llvmAsmlineno) + ": ";
3136 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3137 if (yychar != YYEMPTY && yychar != 0)
3138 errMsg += " while reading token: '" + std::string(llvmAsmtext, llvmAsmleng)+
3140 GenerateError(errMsg);