1 //===-- llvmAsmParser.y - Parser for llvm assembly files --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the bison parser for LLVM assembly languages files.
12 //===----------------------------------------------------------------------===//
15 #include "ParserInternals.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/InlineAsm.h"
18 #include "llvm/Instructions.h"
19 #include "llvm/Module.h"
20 #include "llvm/ValueSymbolTable.h"
21 #include "llvm/AutoUpgrade.h"
22 #include "llvm/Support/GetElementPtrTypeIterator.h"
23 #include "llvm/Support/CommandLine.h"
24 #include "llvm/ADT/SmallVector.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/Support/MathExtras.h"
27 #include "llvm/Support/Streams.h"
33 // The following is a gross hack. In order to rid the libAsmParser library of
34 // exceptions, we have to have a way of getting the yyparse function to go into
35 // an error situation. So, whenever we want an error to occur, the GenerateError
36 // function (see bottom of file) sets TriggerError. Then, at the end of each
37 // production in the grammer we use CHECK_FOR_ERROR which will invoke YYERROR
38 // (a goto) to put YACC in error state. Furthermore, several calls to
39 // GenerateError are made from inside productions and they must simulate the
40 // previous exception behavior by exiting the production immediately. We have
41 // replaced these with the GEN_ERROR macro which calls GeneratError and then
42 // immediately invokes YYERROR. This would be so much cleaner if it was a
43 // recursive descent parser.
44 static bool TriggerError = false;
45 #define CHECK_FOR_ERROR { if (TriggerError) { TriggerError = false; YYABORT; } }
46 #define GEN_ERROR(msg) { GenerateError(msg); YYERROR; }
48 int yyerror(const char *ErrorMsg); // Forward declarations to prevent "implicit
49 int yylex(); // declaration" of xxx warnings.
53 static Module *ParserResult;
55 // DEBUG_UPREFS - Define this symbol if you want to enable debugging output
56 // relating to upreferences in the input stream.
58 //#define DEBUG_UPREFS 1
60 #define UR_OUT(X) cerr << X
65 #define YYERROR_VERBOSE 1
67 static GlobalVariable *CurGV;
70 // This contains info used when building the body of a function. It is
71 // destroyed when the function is completed.
73 typedef std::vector<Value *> ValueList; // Numbered defs
76 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers=0);
78 static struct PerModuleInfo {
79 Module *CurrentModule;
80 ValueList Values; // Module level numbered definitions
81 ValueList LateResolveValues;
82 std::vector<PATypeHolder> Types;
83 std::map<ValID, PATypeHolder> LateResolveTypes;
85 /// PlaceHolderInfo - When temporary placeholder objects are created, remember
86 /// how they were referenced and on which line of the input they came from so
87 /// that we can resolve them later and print error messages as appropriate.
88 std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
90 // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
91 // references to global values. Global values may be referenced before they
92 // are defined, and if so, the temporary object that they represent is held
93 // here. This is used for forward references of GlobalValues.
95 typedef std::map<std::pair<const PointerType *,
96 ValID>, GlobalValue*> GlobalRefsType;
97 GlobalRefsType GlobalRefs;
100 // If we could not resolve some functions at function compilation time
101 // (calls to functions before they are defined), resolve them now... Types
102 // are resolved when the constant pool has been completely parsed.
104 ResolveDefinitions(LateResolveValues);
108 // Check to make sure that all global value forward references have been
111 if (!GlobalRefs.empty()) {
112 std::string UndefinedReferences = "Unresolved global references exist:\n";
114 for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
116 UndefinedReferences += " " + I->first.first->getDescription() + " " +
117 I->first.second.getName() + "\n";
119 GenerateError(UndefinedReferences);
123 // Look for intrinsic functions and CallInst that need to be upgraded
124 for (Module::iterator FI = CurrentModule->begin(),
125 FE = CurrentModule->end(); FI != FE; )
126 UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove
128 Values.clear(); // Clear out function local definitions
133 // GetForwardRefForGlobal - Check to see if there is a forward reference
134 // for this global. If so, remove it from the GlobalRefs map and return it.
135 // If not, just return null.
136 GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
137 // Check to see if there is a forward reference to this global variable...
138 // if there is, eliminate it and patch the reference to use the new def'n.
139 GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
140 GlobalValue *Ret = 0;
141 if (I != GlobalRefs.end()) {
148 bool TypeIsUnresolved(PATypeHolder* PATy) {
149 // If it isn't abstract, its resolved
150 const Type* Ty = PATy->get();
151 if (!Ty->isAbstract())
153 // Traverse the type looking for abstract types. If it isn't abstract then
154 // we don't need to traverse that leg of the type.
155 std::vector<const Type*> WorkList, SeenList;
156 WorkList.push_back(Ty);
157 while (!WorkList.empty()) {
158 const Type* Ty = WorkList.back();
159 SeenList.push_back(Ty);
161 if (const OpaqueType* OpTy = dyn_cast<OpaqueType>(Ty)) {
162 // Check to see if this is an unresolved type
163 std::map<ValID, PATypeHolder>::iterator I = LateResolveTypes.begin();
164 std::map<ValID, PATypeHolder>::iterator E = LateResolveTypes.end();
165 for ( ; I != E; ++I) {
166 if (I->second.get() == OpTy)
169 } else if (const SequentialType* SeqTy = dyn_cast<SequentialType>(Ty)) {
170 const Type* TheTy = SeqTy->getElementType();
171 if (TheTy->isAbstract() && TheTy != Ty) {
172 std::vector<const Type*>::iterator I = SeenList.begin(),
178 WorkList.push_back(TheTy);
180 } else if (const StructType* StrTy = dyn_cast<StructType>(Ty)) {
181 for (unsigned i = 0; i < StrTy->getNumElements(); ++i) {
182 const Type* TheTy = StrTy->getElementType(i);
183 if (TheTy->isAbstract() && TheTy != Ty) {
184 std::vector<const Type*>::iterator I = SeenList.begin(),
190 WorkList.push_back(TheTy);
199 static struct PerFunctionInfo {
200 Function *CurrentFunction; // Pointer to current function being created
202 ValueList Values; // Keep track of #'d definitions
204 ValueList LateResolveValues;
205 bool isDeclare; // Is this function a forward declararation?
206 GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
207 GlobalValue::VisibilityTypes Visibility;
209 /// BBForwardRefs - When we see forward references to basic blocks, keep
210 /// track of them here.
211 std::map<ValID, BasicBlock*> BBForwardRefs;
213 inline PerFunctionInfo() {
216 Linkage = GlobalValue::ExternalLinkage;
217 Visibility = GlobalValue::DefaultVisibility;
220 inline void FunctionStart(Function *M) {
225 void FunctionDone() {
226 // Any forward referenced blocks left?
227 if (!BBForwardRefs.empty()) {
228 GenerateError("Undefined reference to label " +
229 BBForwardRefs.begin()->second->getName());
233 // Resolve all forward references now.
234 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
236 Values.clear(); // Clear out function local definitions
237 BBForwardRefs.clear();
240 Linkage = GlobalValue::ExternalLinkage;
241 Visibility = GlobalValue::DefaultVisibility;
243 } CurFun; // Info for the current function...
245 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
248 //===----------------------------------------------------------------------===//
249 // Code to handle definitions of all the types
250 //===----------------------------------------------------------------------===//
252 /// InsertValue - Insert a value into the value table. If it is named, this
253 /// returns -1, otherwise it returns the slot number for the value.
254 static int InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
255 // Things that have names or are void typed don't get slot numbers
256 if (V->hasName() || (V->getType() == Type::VoidTy))
259 // In the case of function values, we have to allow for the forward reference
260 // of basic blocks, which are included in the numbering. Consequently, we keep
261 // track of the next insertion location with NextValNum. When a BB gets
262 // inserted, it could change the size of the CurFun.Values vector.
263 if (&ValueTab == &CurFun.Values) {
264 if (ValueTab.size() <= CurFun.NextValNum)
265 ValueTab.resize(CurFun.NextValNum+1);
266 ValueTab[CurFun.NextValNum++] = V;
267 return CurFun.NextValNum-1;
269 // For all other lists, its okay to just tack it on the back of the vector.
270 ValueTab.push_back(V);
271 return ValueTab.size()-1;
274 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
276 case ValID::LocalID: // Is it a numbered definition?
277 // Module constants occupy the lowest numbered slots...
278 if (D.Num < CurModule.Types.size())
279 return CurModule.Types[D.Num];
281 case ValID::LocalName: // Is it a named definition?
282 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.getName())) {
283 D.destroy(); // Free old strdup'd memory...
288 GenerateError("Internal parser error: Invalid symbol type reference");
292 // If we reached here, we referenced either a symbol that we don't know about
293 // or an id number that hasn't been read yet. We may be referencing something
294 // forward, so just create an entry to be resolved later and get to it...
296 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
299 if (inFunctionScope()) {
300 if (D.Type == ValID::LocalName) {
301 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
304 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
309 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
310 if (I != CurModule.LateResolveTypes.end())
313 Type *Typ = OpaqueType::get();
314 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
318 // getExistingVal - Look up the value specified by the provided type and
319 // the provided ValID. If the value exists and has already been defined, return
320 // it. Otherwise return null.
322 static Value *getExistingVal(const Type *Ty, const ValID &D) {
323 if (isa<FunctionType>(Ty)) {
324 GenerateError("Functions are not values and "
325 "must be referenced as pointers");
330 case ValID::LocalID: { // Is it a numbered definition?
331 // Check that the number is within bounds.
332 if (D.Num >= CurFun.Values.size())
334 Value *Result = CurFun.Values[D.Num];
335 if (Ty != Result->getType()) {
336 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
337 Result->getType()->getDescription() + "' does not match "
338 "expected type, '" + Ty->getDescription() + "'");
343 case ValID::GlobalID: { // Is it a numbered definition?
344 if (D.Num >= CurModule.Values.size())
346 Value *Result = CurModule.Values[D.Num];
347 if (Ty != Result->getType()) {
348 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
349 Result->getType()->getDescription() + "' does not match "
350 "expected type, '" + Ty->getDescription() + "'");
356 case ValID::LocalName: { // Is it a named definition?
357 if (!inFunctionScope())
359 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
360 Value *N = SymTab.lookup(D.getName());
363 if (N->getType() != Ty)
366 D.destroy(); // Free old strdup'd memory...
369 case ValID::GlobalName: { // Is it a named definition?
370 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
371 Value *N = SymTab.lookup(D.getName());
374 if (N->getType() != Ty)
377 D.destroy(); // Free old strdup'd memory...
381 // Check to make sure that "Ty" is an integral type, and that our
382 // value will fit into the specified type...
383 case ValID::ConstSIntVal: // Is it a constant pool reference??
384 if (!isa<IntegerType>(Ty) ||
385 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
386 GenerateError("Signed integral constant '" +
387 itostr(D.ConstPool64) + "' is invalid for type '" +
388 Ty->getDescription() + "'");
391 return ConstantInt::get(Ty, D.ConstPool64, true);
393 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
394 if (isa<IntegerType>(Ty) &&
395 ConstantInt::isValueValidForType(Ty, D.UConstPool64))
396 return ConstantInt::get(Ty, D.UConstPool64);
398 if (!isa<IntegerType>(Ty) ||
399 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
400 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
401 "' is invalid or out of range for type '" +
402 Ty->getDescription() + "'");
405 // This is really a signed reference. Transmogrify.
406 return ConstantInt::get(Ty, D.ConstPool64, true);
408 case ValID::ConstAPInt: // Is it an unsigned const pool reference?
409 if (!isa<IntegerType>(Ty)) {
410 GenerateError("Integral constant '" + D.getName() +
411 "' is invalid or out of range for type '" +
412 Ty->getDescription() + "'");
417 APSInt Tmp = *D.ConstPoolInt;
418 Tmp.extOrTrunc(Ty->getPrimitiveSizeInBits());
419 return ConstantInt::get(Tmp);
422 case ValID::ConstFPVal: // Is it a floating point const pool reference?
423 if (!Ty->isFloatingPoint() ||
424 !ConstantFP::isValueValidForType(Ty, *D.ConstPoolFP)) {
425 GenerateError("FP constant invalid for type");
428 // Lexer has no type info, so builds all float and double FP constants
429 // as double. Fix this here. Long double does not need this.
430 if (&D.ConstPoolFP->getSemantics() == &APFloat::IEEEdouble &&
432 D.ConstPoolFP->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven);
433 return ConstantFP::get(*D.ConstPoolFP);
435 case ValID::ConstNullVal: // Is it a null value?
436 if (!isa<PointerType>(Ty)) {
437 GenerateError("Cannot create a a non pointer null");
440 return ConstantPointerNull::get(cast<PointerType>(Ty));
442 case ValID::ConstUndefVal: // Is it an undef value?
443 return UndefValue::get(Ty);
445 case ValID::ConstZeroVal: // Is it a zero value?
446 return Constant::getNullValue(Ty);
448 case ValID::ConstantVal: // Fully resolved constant?
449 if (D.ConstantValue->getType() != Ty) {
450 GenerateError("Constant expression type different from required type");
453 return D.ConstantValue;
455 case ValID::InlineAsmVal: { // Inline asm expression
456 const PointerType *PTy = dyn_cast<PointerType>(Ty);
457 const FunctionType *FTy =
458 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
459 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
460 GenerateError("Invalid type for asm constraint string");
463 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
464 D.IAD->HasSideEffects);
465 D.destroy(); // Free InlineAsmDescriptor.
469 assert(0 && "Unhandled case!");
473 assert(0 && "Unhandled case!");
477 // getVal - This function is identical to getExistingVal, except that if a
478 // value is not already defined, it "improvises" by creating a placeholder var
479 // that looks and acts just like the requested variable. When the value is
480 // defined later, all uses of the placeholder variable are replaced with the
483 static Value *getVal(const Type *Ty, const ValID &ID) {
484 if (Ty == Type::LabelTy) {
485 GenerateError("Cannot use a basic block here");
489 // See if the value has already been defined.
490 Value *V = getExistingVal(Ty, ID);
492 if (TriggerError) return 0;
494 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
495 GenerateError("Invalid use of a non-first-class type");
499 // If we reached here, we referenced either a symbol that we don't know about
500 // or an id number that hasn't been read yet. We may be referencing something
501 // forward, so just create an entry to be resolved later and get to it...
504 case ValID::GlobalName:
505 case ValID::GlobalID: {
506 const PointerType *PTy = dyn_cast<PointerType>(Ty);
508 GenerateError("Invalid type for reference to global" );
511 const Type* ElTy = PTy->getElementType();
512 if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy))
513 V = Function::Create(FTy, GlobalValue::ExternalLinkage);
515 V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage, 0, "",
516 (Module*)0, false, PTy->getAddressSpace());
520 V = new Argument(Ty);
523 // Remember where this forward reference came from. FIXME, shouldn't we try
524 // to recycle these things??
525 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
528 if (inFunctionScope())
529 InsertValue(V, CurFun.LateResolveValues);
531 InsertValue(V, CurModule.LateResolveValues);
535 /// defineBBVal - This is a definition of a new basic block with the specified
536 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
537 static BasicBlock *defineBBVal(const ValID &ID) {
538 assert(inFunctionScope() && "Can't get basic block at global scope!");
542 // First, see if this was forward referenced
544 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
545 if (BBI != CurFun.BBForwardRefs.end()) {
547 // The forward declaration could have been inserted anywhere in the
548 // function: insert it into the correct place now.
549 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
550 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
552 // We're about to erase the entry, save the key so we can clean it up.
553 ValID Tmp = BBI->first;
555 // Erase the forward ref from the map as its no longer "forward"
556 CurFun.BBForwardRefs.erase(ID);
558 // The key has been removed from the map but so we don't want to leave
559 // strdup'd memory around so destroy it too.
562 // If its a numbered definition, bump the number and set the BB value.
563 if (ID.Type == ValID::LocalID) {
564 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
568 // We haven't seen this BB before and its first mention is a definition.
569 // Just create it and return it.
570 std::string Name (ID.Type == ValID::LocalName ? ID.getName() : "");
571 BB = BasicBlock::Create(Name, CurFun.CurrentFunction);
572 if (ID.Type == ValID::LocalID) {
573 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
582 /// getBBVal - get an existing BB value or create a forward reference for it.
584 static BasicBlock *getBBVal(const ValID &ID) {
585 assert(inFunctionScope() && "Can't get basic block at global scope!");
589 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
590 if (BBI != CurFun.BBForwardRefs.end()) {
592 } if (ID.Type == ValID::LocalName) {
593 std::string Name = ID.getName();
594 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
596 if (N->getType()->getTypeID() == Type::LabelTyID)
597 BB = cast<BasicBlock>(N);
599 GenerateError("Reference to label '" + Name + "' is actually of type '"+
600 N->getType()->getDescription() + "'");
602 } else if (ID.Type == ValID::LocalID) {
603 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
604 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
605 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
607 GenerateError("Reference to label '%" + utostr(ID.Num) +
608 "' is actually of type '"+
609 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
612 GenerateError("Illegal label reference " + ID.getName());
616 // If its already been defined, return it now.
618 ID.destroy(); // Free strdup'd memory.
622 // Otherwise, this block has not been seen before, create it.
624 if (ID.Type == ValID::LocalName)
626 BB = BasicBlock::Create(Name, CurFun.CurrentFunction);
628 // Insert it in the forward refs map.
629 CurFun.BBForwardRefs[ID] = BB;
635 //===----------------------------------------------------------------------===//
636 // Code to handle forward references in instructions
637 //===----------------------------------------------------------------------===//
639 // This code handles the late binding needed with statements that reference
640 // values not defined yet... for example, a forward branch, or the PHI node for
643 // This keeps a table (CurFun.LateResolveValues) of all such forward references
644 // and back patchs after we are done.
647 // ResolveDefinitions - If we could not resolve some defs at parsing
648 // time (forward branches, phi functions for loops, etc...) resolve the
652 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
653 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
654 while (!LateResolvers.empty()) {
655 Value *V = LateResolvers.back();
656 LateResolvers.pop_back();
658 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
659 CurModule.PlaceHolderInfo.find(V);
660 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
662 ValID &DID = PHI->second.first;
664 Value *TheRealValue = getExistingVal(V->getType(), DID);
668 V->replaceAllUsesWith(TheRealValue);
670 CurModule.PlaceHolderInfo.erase(PHI);
671 } else if (FutureLateResolvers) {
672 // Functions have their unresolved items forwarded to the module late
674 InsertValue(V, *FutureLateResolvers);
676 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
677 GenerateError("Reference to an invalid definition: '" +DID.getName()+
678 "' of type '" + V->getType()->getDescription() + "'",
682 GenerateError("Reference to an invalid definition: #" +
683 itostr(DID.Num) + " of type '" +
684 V->getType()->getDescription() + "'",
690 LateResolvers.clear();
693 // ResolveTypeTo - A brand new type was just declared. This means that (if
694 // name is not null) things referencing Name can be resolved. Otherwise, things
695 // refering to the number can be resolved. Do this now.
697 static void ResolveTypeTo(std::string *Name, const Type *ToTy) {
700 D = ValID::createLocalName(*Name);
702 D = ValID::createLocalID(CurModule.Types.size());
704 std::map<ValID, PATypeHolder>::iterator I =
705 CurModule.LateResolveTypes.find(D);
706 if (I != CurModule.LateResolveTypes.end()) {
707 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
708 CurModule.LateResolveTypes.erase(I);
712 // setValueName - Set the specified value to the name given. The name may be
713 // null potentially, in which case this is a noop. The string passed in is
714 // assumed to be a malloc'd string buffer, and is free'd by this function.
716 static void setValueName(Value *V, std::string *NameStr) {
717 if (!NameStr) return;
718 std::string Name(*NameStr); // Copy string
719 delete NameStr; // Free old string
721 if (V->getType() == Type::VoidTy) {
722 GenerateError("Can't assign name '" + Name+"' to value with void type");
726 assert(inFunctionScope() && "Must be in function scope!");
727 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
728 if (ST.lookup(Name)) {
729 GenerateError("Redefinition of value '" + Name + "' of type '" +
730 V->getType()->getDescription() + "'");
738 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
739 /// this is a declaration, otherwise it is a definition.
740 static GlobalVariable *
741 ParseGlobalVariable(std::string *NameStr,
742 GlobalValue::LinkageTypes Linkage,
743 GlobalValue::VisibilityTypes Visibility,
744 bool isConstantGlobal, const Type *Ty,
745 Constant *Initializer, bool IsThreadLocal,
746 unsigned AddressSpace = 0) {
747 if (isa<FunctionType>(Ty)) {
748 GenerateError("Cannot declare global vars of function type");
751 if (Ty == Type::LabelTy) {
752 GenerateError("Cannot declare global vars of label type");
756 const PointerType *PTy = PointerType::get(Ty, AddressSpace);
760 Name = *NameStr; // Copy string
761 delete NameStr; // Free old string
764 // See if this global value was forward referenced. If so, recycle the
768 ID = ValID::createGlobalName(Name);
770 ID = ValID::createGlobalID(CurModule.Values.size());
773 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
774 // Move the global to the end of the list, from whereever it was
775 // previously inserted.
776 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
777 CurModule.CurrentModule->getGlobalList().remove(GV);
778 CurModule.CurrentModule->getGlobalList().push_back(GV);
779 GV->setInitializer(Initializer);
780 GV->setLinkage(Linkage);
781 GV->setVisibility(Visibility);
782 GV->setConstant(isConstantGlobal);
783 GV->setThreadLocal(IsThreadLocal);
784 InsertValue(GV, CurModule.Values);
788 // If this global has a name
790 // if the global we're parsing has an initializer (is a definition) and
791 // has external linkage.
792 if (Initializer && Linkage != GlobalValue::InternalLinkage)
793 // If there is already a global with external linkage with this name
794 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
795 // If we allow this GVar to get created, it will be renamed in the
796 // symbol table because it conflicts with an existing GVar. We can't
797 // allow redefinition of GVars whose linking indicates that their name
798 // must stay the same. Issue the error.
799 GenerateError("Redefinition of global variable named '" + Name +
800 "' of type '" + Ty->getDescription() + "'");
805 // Otherwise there is no existing GV to use, create one now.
807 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
808 CurModule.CurrentModule, IsThreadLocal, AddressSpace);
809 GV->setVisibility(Visibility);
810 InsertValue(GV, CurModule.Values);
814 // setTypeName - Set the specified type to the name given. The name may be
815 // null potentially, in which case this is a noop. The string passed in is
816 // assumed to be a malloc'd string buffer, and is freed by this function.
818 // This function returns true if the type has already been defined, but is
819 // allowed to be redefined in the specified context. If the name is a new name
820 // for the type plane, it is inserted and false is returned.
821 static bool setTypeName(const Type *T, std::string *NameStr) {
822 assert(!inFunctionScope() && "Can't give types function-local names!");
823 if (NameStr == 0) return false;
825 std::string Name(*NameStr); // Copy string
826 delete NameStr; // Free old string
828 // We don't allow assigning names to void type
829 if (T == Type::VoidTy) {
830 GenerateError("Can't assign name '" + Name + "' to the void type");
834 // Set the type name, checking for conflicts as we do so.
835 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
837 if (AlreadyExists) { // Inserting a name that is already defined???
838 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
839 assert(Existing && "Conflict but no matching type?!");
841 // There is only one case where this is allowed: when we are refining an
842 // opaque type. In this case, Existing will be an opaque type.
843 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
844 // We ARE replacing an opaque type!
845 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
849 // Otherwise, this is an attempt to redefine a type. That's okay if
850 // the redefinition is identical to the original. This will be so if
851 // Existing and T point to the same Type object. In this one case we
852 // allow the equivalent redefinition.
853 if (Existing == T) return true; // Yes, it's equal.
855 // Any other kind of (non-equivalent) redefinition is an error.
856 GenerateError("Redefinition of type named '" + Name + "' of type '" +
857 T->getDescription() + "'");
863 //===----------------------------------------------------------------------===//
864 // Code for handling upreferences in type names...
867 // TypeContains - Returns true if Ty directly contains E in it.
869 static bool TypeContains(const Type *Ty, const Type *E) {
870 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
871 E) != Ty->subtype_end();
876 // NestingLevel - The number of nesting levels that need to be popped before
877 // this type is resolved.
878 unsigned NestingLevel;
880 // LastContainedTy - This is the type at the current binding level for the
881 // type. Every time we reduce the nesting level, this gets updated.
882 const Type *LastContainedTy;
884 // UpRefTy - This is the actual opaque type that the upreference is
888 UpRefRecord(unsigned NL, OpaqueType *URTy)
889 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
893 // UpRefs - A list of the outstanding upreferences that need to be resolved.
894 static std::vector<UpRefRecord> UpRefs;
896 /// HandleUpRefs - Every time we finish a new layer of types, this function is
897 /// called. It loops through the UpRefs vector, which is a list of the
898 /// currently active types. For each type, if the up reference is contained in
899 /// the newly completed type, we decrement the level count. When the level
900 /// count reaches zero, the upreferenced type is the type that is passed in:
901 /// thus we can complete the cycle.
903 static PATypeHolder HandleUpRefs(const Type *ty) {
904 // If Ty isn't abstract, or if there are no up-references in it, then there is
905 // nothing to resolve here.
906 if (!ty->isAbstract() || UpRefs.empty()) return ty;
909 UR_OUT("Type '" << Ty->getDescription() <<
910 "' newly formed. Resolving upreferences.\n" <<
911 UpRefs.size() << " upreferences active!\n");
913 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
914 // to zero), we resolve them all together before we resolve them to Ty. At
915 // the end of the loop, if there is anything to resolve to Ty, it will be in
917 OpaqueType *TypeToResolve = 0;
919 for (unsigned i = 0; i != UpRefs.size(); ++i) {
920 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
921 << UpRefs[i].second->getDescription() << ") = "
922 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
923 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
924 // Decrement level of upreference
925 unsigned Level = --UpRefs[i].NestingLevel;
926 UpRefs[i].LastContainedTy = Ty;
927 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
928 if (Level == 0) { // Upreference should be resolved!
929 if (!TypeToResolve) {
930 TypeToResolve = UpRefs[i].UpRefTy;
932 UR_OUT(" * Resolving upreference for "
933 << UpRefs[i].second->getDescription() << "\n";
934 std::string OldName = UpRefs[i].UpRefTy->getDescription());
935 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
936 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
937 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
939 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
940 --i; // Do not skip the next element...
946 UR_OUT(" * Resolving upreference for "
947 << UpRefs[i].second->getDescription() << "\n";
948 std::string OldName = TypeToResolve->getDescription());
949 TypeToResolve->refineAbstractTypeTo(Ty);
955 //===----------------------------------------------------------------------===//
956 // RunVMAsmParser - Define an interface to this parser
957 //===----------------------------------------------------------------------===//
959 static Module* RunParser(Module * M);
961 Module *llvm::RunVMAsmParser(llvm::MemoryBuffer *MB) {
963 Module *M = RunParser(new Module(LLLgetFilename()));
971 llvm::Module *ModuleVal;
972 llvm::Function *FunctionVal;
973 llvm::BasicBlock *BasicBlockVal;
974 llvm::TerminatorInst *TermInstVal;
975 llvm::Instruction *InstVal;
976 llvm::Constant *ConstVal;
978 const llvm::Type *PrimType;
979 std::list<llvm::PATypeHolder> *TypeList;
980 llvm::PATypeHolder *TypeVal;
981 llvm::Value *ValueVal;
982 std::vector<llvm::Value*> *ValueList;
983 std::vector<unsigned> *ConstantList;
984 llvm::ArgListType *ArgList;
985 llvm::TypeWithAttrs TypeWithAttrs;
986 llvm::TypeWithAttrsList *TypeWithAttrsList;
987 llvm::ParamList *ParamList;
989 // Represent the RHS of PHI node
990 std::list<std::pair<llvm::Value*,
991 llvm::BasicBlock*> > *PHIList;
992 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
993 std::vector<llvm::Constant*> *ConstVector;
995 llvm::GlobalValue::LinkageTypes Linkage;
996 llvm::GlobalValue::VisibilityTypes Visibility;
997 llvm::ParameterAttributes ParamAttrs;
998 llvm::APInt *APIntVal;
1003 llvm::APFloat *FPVal;
1006 std::string *StrVal; // This memory must be deleted
1007 llvm::ValID ValIDVal;
1009 llvm::Instruction::BinaryOps BinaryOpVal;
1010 llvm::Instruction::TermOps TermOpVal;
1011 llvm::Instruction::MemoryOps MemOpVal;
1012 llvm::Instruction::CastOps CastOpVal;
1013 llvm::Instruction::OtherOps OtherOpVal;
1014 llvm::ICmpInst::Predicate IPredicate;
1015 llvm::FCmpInst::Predicate FPredicate;
1018 %type <ModuleVal> Module
1019 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1020 %type <BasicBlockVal> BasicBlock InstructionList
1021 %type <TermInstVal> BBTerminatorInst
1022 %type <InstVal> Inst InstVal MemoryInst
1023 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1024 %type <ConstVector> ConstVector
1025 %type <ArgList> ArgList ArgListH
1026 %type <PHIList> PHIList
1027 %type <ParamList> ParamList // For call param lists & GEP indices
1028 %type <ValueList> IndexList // For GEP indices
1029 %type <ConstantList> ConstantIndexList // For insertvalue/extractvalue indices
1030 %type <TypeList> TypeListI
1031 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1032 %type <TypeWithAttrs> ArgType
1033 %type <JumpTable> JumpTable
1034 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1035 %type <BoolVal> ThreadLocal // 'thread_local' or not
1036 %type <BoolVal> OptVolatile // 'volatile' or not
1037 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1038 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1039 %type <Linkage> GVInternalLinkage GVExternalLinkage
1040 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1041 %type <Linkage> AliasLinkage
1042 %type <Visibility> GVVisibilityStyle
1044 // ValueRef - Unresolved reference to a definition or BB
1045 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1046 %type <ValueVal> ResolvedVal // <type> <valref> pair
1047 %type <ValueList> ReturnedVal
1048 // Tokens and types for handling constant integer values
1050 // ESINT64VAL - A negative number within long long range
1051 %token <SInt64Val> ESINT64VAL
1053 // EUINT64VAL - A positive number within uns. long long range
1054 %token <UInt64Val> EUINT64VAL
1056 // ESAPINTVAL - A negative number with arbitrary precision
1057 %token <APIntVal> ESAPINTVAL
1059 // EUAPINTVAL - A positive number with arbitrary precision
1060 %token <APIntVal> EUAPINTVAL
1062 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1063 %token <FPVal> FPVAL // Float or Double constant
1065 // Built in types...
1066 %type <TypeVal> Types ResultTypes
1067 %type <PrimType> IntType FPType PrimType // Classifications
1068 %token <PrimType> VOID INTTYPE
1069 %token <PrimType> FLOAT DOUBLE X86_FP80 FP128 PPC_FP128 LABEL
1073 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR
1074 %token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT
1075 %type <StrVal> LocalName OptLocalName OptLocalAssign
1076 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1077 %type <StrVal> OptSection SectionString OptGC
1079 %type <UIntVal> OptAlign OptCAlign OptAddrSpace
1081 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1082 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1083 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1084 %token DLLIMPORT DLLEXPORT EXTERN_WEAK COMMON
1085 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN ADDRSPACE
1086 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1087 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1088 %token X86_SSECALLCC_TOK
1090 %type <UIntVal> OptCallingConv LocalNumber
1091 %type <ParamAttrs> OptParamAttrs ParamAttr
1092 %type <ParamAttrs> OptFuncAttrs FuncAttr
1094 // Basic Block Terminating Operators
1095 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1098 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1099 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1100 %token <BinaryOpVal> SHL LSHR ASHR
1102 %token <OtherOpVal> ICMP FCMP VICMP VFCMP
1103 %type <IPredicate> IPredicates
1104 %type <FPredicate> FPredicates
1105 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1106 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1108 // Memory Instructions
1109 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1112 %type <CastOpVal> CastOps
1113 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1114 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1117 %token <OtherOpVal> PHI_TOK SELECT VAARG
1118 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1119 %token <OtherOpVal> GETRESULT
1120 %token <OtherOpVal> EXTRACTVALUE INSERTVALUE
1122 // Function Attributes
1123 %token SIGNEXT ZEROEXT NORETURN INREG SRET NOUNWIND NOALIAS BYVAL NEST
1124 %token READNONE READONLY GC
1126 // Visibility Styles
1127 %token DEFAULT HIDDEN PROTECTED
1133 // Operations that are notably excluded from this list include:
1134 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1136 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1137 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1138 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1139 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1142 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1143 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1144 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1145 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1146 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1150 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1151 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1152 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1153 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1154 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1155 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1156 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1157 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1158 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1161 // These are some types that allow classification if we only want a particular
1162 // thing... for example, only a signed, unsigned, or integral type.
1164 FPType : FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80;
1166 LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ;
1167 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1169 OptAddrSpace : ADDRSPACE '(' EUINT64VAL ')' { $$=$3; }
1170 | /*empty*/ { $$=0; };
1172 /// OptLocalAssign - Value producing statements have an optional assignment
1174 OptLocalAssign : LocalName '=' {
1183 LocalNumber : LOCALVAL_ID '=' {
1189 GlobalName : GLOBALVAR | ATSTRINGCONSTANT ;
1191 OptGlobalAssign : GlobalAssign
1197 GlobalAssign : GlobalName '=' {
1203 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1204 | WEAK { $$ = GlobalValue::WeakLinkage; }
1205 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1206 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1207 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1208 | COMMON { $$ = GlobalValue::CommonLinkage; }
1212 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1213 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1214 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1218 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1219 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1220 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1221 | PROTECTED { $$ = GlobalValue::ProtectedVisibility; }
1224 FunctionDeclareLinkage
1225 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1226 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1227 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1230 FunctionDefineLinkage
1231 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1232 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1233 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1234 | WEAK { $$ = GlobalValue::WeakLinkage; }
1235 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1239 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1240 | WEAK { $$ = GlobalValue::WeakLinkage; }
1241 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1244 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1245 CCC_TOK { $$ = CallingConv::C; } |
1246 FASTCC_TOK { $$ = CallingConv::Fast; } |
1247 COLDCC_TOK { $$ = CallingConv::Cold; } |
1248 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1249 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1250 X86_SSECALLCC_TOK { $$ = CallingConv::X86_SSECall; } |
1252 if ((unsigned)$2 != $2)
1253 GEN_ERROR("Calling conv too large");
1258 ParamAttr : ZEROEXT { $$ = ParamAttr::ZExt; }
1259 | ZEXT { $$ = ParamAttr::ZExt; }
1260 | SIGNEXT { $$ = ParamAttr::SExt; }
1261 | SEXT { $$ = ParamAttr::SExt; }
1262 | INREG { $$ = ParamAttr::InReg; }
1263 | SRET { $$ = ParamAttr::StructRet; }
1264 | NOALIAS { $$ = ParamAttr::NoAlias; }
1265 | BYVAL { $$ = ParamAttr::ByVal; }
1266 | NEST { $$ = ParamAttr::Nest; }
1267 | ALIGN EUINT64VAL { $$ =
1268 ParamAttr::constructAlignmentFromInt($2); }
1271 OptParamAttrs : /* empty */ { $$ = ParamAttr::None; }
1272 | OptParamAttrs ParamAttr {
1277 FuncAttr : NORETURN { $$ = ParamAttr::NoReturn; }
1278 | NOUNWIND { $$ = ParamAttr::NoUnwind; }
1279 | ZEROEXT { $$ = ParamAttr::ZExt; }
1280 | SIGNEXT { $$ = ParamAttr::SExt; }
1281 | READNONE { $$ = ParamAttr::ReadNone; }
1282 | READONLY { $$ = ParamAttr::ReadOnly; }
1285 OptFuncAttrs : /* empty */ { $$ = ParamAttr::None; }
1286 | OptFuncAttrs FuncAttr {
1291 OptGC : /* empty */ { $$ = 0; }
1292 | GC STRINGCONSTANT {
1297 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1298 // a comma before it.
1299 OptAlign : /*empty*/ { $$ = 0; } |
1302 if ($$ != 0 && !isPowerOf2_32($$))
1303 GEN_ERROR("Alignment must be a power of two");
1306 OptCAlign : /*empty*/ { $$ = 0; } |
1307 ',' ALIGN EUINT64VAL {
1309 if ($$ != 0 && !isPowerOf2_32($$))
1310 GEN_ERROR("Alignment must be a power of two");
1316 SectionString : SECTION STRINGCONSTANT {
1317 for (unsigned i = 0, e = $2->length(); i != e; ++i)
1318 if ((*$2)[i] == '"' || (*$2)[i] == '\\')
1319 GEN_ERROR("Invalid character in section name");
1324 OptSection : /*empty*/ { $$ = 0; } |
1325 SectionString { $$ = $1; };
1327 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1328 // is set to be the global we are processing.
1330 GlobalVarAttributes : /* empty */ {} |
1331 ',' GlobalVarAttribute GlobalVarAttributes {};
1332 GlobalVarAttribute : SectionString {
1333 CurGV->setSection(*$1);
1337 | ALIGN EUINT64VAL {
1338 if ($2 != 0 && !isPowerOf2_32($2))
1339 GEN_ERROR("Alignment must be a power of two");
1340 CurGV->setAlignment($2);
1344 //===----------------------------------------------------------------------===//
1345 // Types includes all predefined types... except void, because it can only be
1346 // used in specific contexts (function returning void for example).
1348 // Derived types are added later...
1350 PrimType : INTTYPE | FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80 | LABEL ;
1354 $$ = new PATypeHolder(OpaqueType::get());
1358 $$ = new PATypeHolder($1);
1361 | Types OptAddrSpace '*' { // Pointer type?
1362 if (*$1 == Type::LabelTy)
1363 GEN_ERROR("Cannot form a pointer to a basic block");
1364 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1, $2)));
1368 | SymbolicValueRef { // Named types are also simple types...
1369 const Type* tmp = getTypeVal($1);
1371 $$ = new PATypeHolder(tmp);
1373 | '\\' EUINT64VAL { // Type UpReference
1374 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1375 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1376 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1377 $$ = new PATypeHolder(OT);
1378 UR_OUT("New Upreference!\n");
1381 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1382 // Allow but ignore attributes on function types; this permits auto-upgrade.
1383 // FIXME: remove in LLVM 3.0.
1384 const Type *RetTy = *$1;
1385 if (!FunctionType::isValidReturnType(RetTy))
1386 GEN_ERROR("Invalid result type for LLVM function");
1388 std::vector<const Type*> Params;
1389 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1390 for (; I != E; ++I ) {
1391 const Type *Ty = I->Ty->get();
1392 Params.push_back(Ty);
1395 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1396 if (isVarArg) Params.pop_back();
1398 for (unsigned i = 0; i != Params.size(); ++i)
1399 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1400 GEN_ERROR("Function arguments must be value types!");
1404 FunctionType *FT = FunctionType::get(RetTy, Params, isVarArg);
1405 delete $3; // Delete the argument list
1406 delete $1; // Delete the return type handle
1407 $$ = new PATypeHolder(HandleUpRefs(FT));
1410 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1411 // Allow but ignore attributes on function types; this permits auto-upgrade.
1412 // FIXME: remove in LLVM 3.0.
1413 std::vector<const Type*> Params;
1414 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1415 for ( ; I != E; ++I ) {
1416 const Type* Ty = I->Ty->get();
1417 Params.push_back(Ty);
1420 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1421 if (isVarArg) Params.pop_back();
1423 for (unsigned i = 0; i != Params.size(); ++i)
1424 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1425 GEN_ERROR("Function arguments must be value types!");
1429 FunctionType *FT = FunctionType::get($1, Params, isVarArg);
1430 delete $3; // Delete the argument list
1431 $$ = new PATypeHolder(HandleUpRefs(FT));
1435 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1436 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, $2)));
1440 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1441 const llvm::Type* ElemTy = $4->get();
1442 if ((unsigned)$2 != $2)
1443 GEN_ERROR("Unsigned result not equal to signed result");
1444 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1445 GEN_ERROR("Element type of a VectorType must be primitive");
1446 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1450 | '{' TypeListI '}' { // Structure type?
1451 std::vector<const Type*> Elements;
1452 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1453 E = $2->end(); I != E; ++I)
1454 Elements.push_back(*I);
1456 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1460 | '{' '}' { // Empty structure type?
1461 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1464 | '<' '{' TypeListI '}' '>' {
1465 std::vector<const Type*> Elements;
1466 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1467 E = $3->end(); I != E; ++I)
1468 Elements.push_back(*I);
1470 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1474 | '<' '{' '}' '>' { // Empty structure type?
1475 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1481 : Types OptParamAttrs {
1482 // Allow but ignore attributes on function types; this permits auto-upgrade.
1483 // FIXME: remove in LLVM 3.0.
1485 $$.Attrs = ParamAttr::None;
1491 if (!UpRefs.empty())
1492 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1493 if (!(*$1)->isFirstClassType() && !isa<StructType>($1->get()))
1494 GEN_ERROR("LLVM functions cannot return aggregate types");
1498 $$ = new PATypeHolder(Type::VoidTy);
1502 ArgTypeList : ArgType {
1503 $$ = new TypeWithAttrsList();
1507 | ArgTypeList ',' ArgType {
1508 ($$=$1)->push_back($3);
1515 | ArgTypeList ',' DOTDOTDOT {
1517 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1518 TWA.Ty = new PATypeHolder(Type::VoidTy);
1523 $$ = new TypeWithAttrsList;
1524 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1525 TWA.Ty = new PATypeHolder(Type::VoidTy);
1530 $$ = new TypeWithAttrsList();
1534 // TypeList - Used for struct declarations and as a basis for function type
1535 // declaration type lists
1538 $$ = new std::list<PATypeHolder>();
1543 | TypeListI ',' Types {
1544 ($$=$1)->push_back(*$3);
1549 // ConstVal - The various declarations that go into the constant pool. This
1550 // production is used ONLY to represent constants that show up AFTER a 'const',
1551 // 'constant' or 'global' token at global scope. Constants that can be inlined
1552 // into other expressions (such as integers and constexprs) are handled by the
1553 // ResolvedVal, ValueRef and ConstValueRef productions.
1555 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1556 if (!UpRefs.empty())
1557 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1558 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1560 GEN_ERROR("Cannot make array constant with type: '" +
1561 (*$1)->getDescription() + "'");
1562 const Type *ETy = ATy->getElementType();
1563 uint64_t NumElements = ATy->getNumElements();
1565 // Verify that we have the correct size...
1566 if (NumElements != uint64_t(-1) && NumElements != $3->size())
1567 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1568 utostr($3->size()) + " arguments, but has size of " +
1569 utostr(NumElements) + "");
1571 // Verify all elements are correct type!
1572 for (unsigned i = 0; i < $3->size(); i++) {
1573 if (ETy != (*$3)[i]->getType())
1574 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1575 ETy->getDescription() +"' as required!\nIt is of type '"+
1576 (*$3)[i]->getType()->getDescription() + "'.");
1579 $$ = ConstantArray::get(ATy, *$3);
1580 delete $1; delete $3;
1584 if (!UpRefs.empty())
1585 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1586 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1588 GEN_ERROR("Cannot make array constant with type: '" +
1589 (*$1)->getDescription() + "'");
1591 uint64_t NumElements = ATy->getNumElements();
1592 if (NumElements != uint64_t(-1) && NumElements != 0)
1593 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1594 " arguments, but has size of " + utostr(NumElements) +"");
1595 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1599 | Types 'c' STRINGCONSTANT {
1600 if (!UpRefs.empty())
1601 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1602 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1604 GEN_ERROR("Cannot make array constant with type: '" +
1605 (*$1)->getDescription() + "'");
1607 uint64_t NumElements = ATy->getNumElements();
1608 const Type *ETy = ATy->getElementType();
1609 if (NumElements != uint64_t(-1) && NumElements != $3->length())
1610 GEN_ERROR("Can't build string constant of size " +
1611 utostr($3->length()) +
1612 " when array has size " + utostr(NumElements) + "");
1613 std::vector<Constant*> Vals;
1614 if (ETy == Type::Int8Ty) {
1615 for (uint64_t i = 0; i < $3->length(); ++i)
1616 Vals.push_back(ConstantInt::get(ETy, (*$3)[i]));
1619 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1622 $$ = ConstantArray::get(ATy, Vals);
1626 | Types '<' ConstVector '>' { // Nonempty unsized arr
1627 if (!UpRefs.empty())
1628 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1629 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1631 GEN_ERROR("Cannot make packed constant with type: '" +
1632 (*$1)->getDescription() + "'");
1633 const Type *ETy = PTy->getElementType();
1634 unsigned NumElements = PTy->getNumElements();
1636 // Verify that we have the correct size...
1637 if (NumElements != unsigned(-1) && NumElements != (unsigned)$3->size())
1638 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1639 utostr($3->size()) + " arguments, but has size of " +
1640 utostr(NumElements) + "");
1642 // Verify all elements are correct type!
1643 for (unsigned i = 0; i < $3->size(); i++) {
1644 if (ETy != (*$3)[i]->getType())
1645 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1646 ETy->getDescription() +"' as required!\nIt is of type '"+
1647 (*$3)[i]->getType()->getDescription() + "'.");
1650 $$ = ConstantVector::get(PTy, *$3);
1651 delete $1; delete $3;
1654 | Types '{' ConstVector '}' {
1655 const StructType *STy = dyn_cast<StructType>($1->get());
1657 GEN_ERROR("Cannot make struct constant with type: '" +
1658 (*$1)->getDescription() + "'");
1660 if ($3->size() != STy->getNumContainedTypes())
1661 GEN_ERROR("Illegal number of initializers for structure type");
1663 // Check to ensure that constants are compatible with the type initializer!
1664 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1665 if ((*$3)[i]->getType() != STy->getElementType(i))
1666 GEN_ERROR("Expected type '" +
1667 STy->getElementType(i)->getDescription() +
1668 "' for element #" + utostr(i) +
1669 " of structure initializer");
1671 // Check to ensure that Type is not packed
1672 if (STy->isPacked())
1673 GEN_ERROR("Unpacked Initializer to vector type '" +
1674 STy->getDescription() + "'");
1676 $$ = ConstantStruct::get(STy, *$3);
1677 delete $1; delete $3;
1681 if (!UpRefs.empty())
1682 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1683 const StructType *STy = dyn_cast<StructType>($1->get());
1685 GEN_ERROR("Cannot make struct constant with type: '" +
1686 (*$1)->getDescription() + "'");
1688 if (STy->getNumContainedTypes() != 0)
1689 GEN_ERROR("Illegal number of initializers for structure type");
1691 // Check to ensure that Type is not packed
1692 if (STy->isPacked())
1693 GEN_ERROR("Unpacked Initializer to vector type '" +
1694 STy->getDescription() + "'");
1696 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1700 | Types '<' '{' ConstVector '}' '>' {
1701 const StructType *STy = dyn_cast<StructType>($1->get());
1703 GEN_ERROR("Cannot make struct constant with type: '" +
1704 (*$1)->getDescription() + "'");
1706 if ($4->size() != STy->getNumContainedTypes())
1707 GEN_ERROR("Illegal number of initializers for structure type");
1709 // Check to ensure that constants are compatible with the type initializer!
1710 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1711 if ((*$4)[i]->getType() != STy->getElementType(i))
1712 GEN_ERROR("Expected type '" +
1713 STy->getElementType(i)->getDescription() +
1714 "' for element #" + utostr(i) +
1715 " of structure initializer");
1717 // Check to ensure that Type is packed
1718 if (!STy->isPacked())
1719 GEN_ERROR("Vector initializer to non-vector type '" +
1720 STy->getDescription() + "'");
1722 $$ = ConstantStruct::get(STy, *$4);
1723 delete $1; delete $4;
1726 | Types '<' '{' '}' '>' {
1727 if (!UpRefs.empty())
1728 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1729 const StructType *STy = dyn_cast<StructType>($1->get());
1731 GEN_ERROR("Cannot make struct constant with type: '" +
1732 (*$1)->getDescription() + "'");
1734 if (STy->getNumContainedTypes() != 0)
1735 GEN_ERROR("Illegal number of initializers for structure type");
1737 // Check to ensure that Type is packed
1738 if (!STy->isPacked())
1739 GEN_ERROR("Vector initializer to non-vector type '" +
1740 STy->getDescription() + "'");
1742 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1747 if (!UpRefs.empty())
1748 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1749 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1751 GEN_ERROR("Cannot make null pointer constant with type: '" +
1752 (*$1)->getDescription() + "'");
1754 $$ = ConstantPointerNull::get(PTy);
1759 if (!UpRefs.empty())
1760 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1761 $$ = UndefValue::get($1->get());
1765 | Types SymbolicValueRef {
1766 if (!UpRefs.empty())
1767 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1768 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1770 GEN_ERROR("Global const reference must be a pointer type " + (*$1)->getDescription());
1772 // ConstExprs can exist in the body of a function, thus creating
1773 // GlobalValues whenever they refer to a variable. Because we are in
1774 // the context of a function, getExistingVal will search the functions
1775 // symbol table instead of the module symbol table for the global symbol,
1776 // which throws things all off. To get around this, we just tell
1777 // getExistingVal that we are at global scope here.
1779 Function *SavedCurFn = CurFun.CurrentFunction;
1780 CurFun.CurrentFunction = 0;
1782 Value *V = getExistingVal(Ty, $2);
1785 CurFun.CurrentFunction = SavedCurFn;
1787 // If this is an initializer for a constant pointer, which is referencing a
1788 // (currently) undefined variable, create a stub now that shall be replaced
1789 // in the future with the right type of variable.
1792 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1793 const PointerType *PT = cast<PointerType>(Ty);
1795 // First check to see if the forward references value is already created!
1796 PerModuleInfo::GlobalRefsType::iterator I =
1797 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1799 if (I != CurModule.GlobalRefs.end()) {
1800 V = I->second; // Placeholder already exists, use it...
1804 if ($2.Type == ValID::GlobalName)
1805 Name = $2.getName();
1806 else if ($2.Type != ValID::GlobalID)
1807 GEN_ERROR("Invalid reference to global");
1809 // Create the forward referenced global.
1811 if (const FunctionType *FTy =
1812 dyn_cast<FunctionType>(PT->getElementType())) {
1813 GV = Function::Create(FTy, GlobalValue::ExternalWeakLinkage, Name,
1814 CurModule.CurrentModule);
1816 GV = new GlobalVariable(PT->getElementType(), false,
1817 GlobalValue::ExternalWeakLinkage, 0,
1818 Name, CurModule.CurrentModule);
1821 // Keep track of the fact that we have a forward ref to recycle it
1822 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1827 $$ = cast<GlobalValue>(V);
1828 delete $1; // Free the type handle
1832 if (!UpRefs.empty())
1833 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1834 if ($1->get() != $2->getType())
1835 GEN_ERROR("Mismatched types for constant expression: " +
1836 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1841 | Types ZEROINITIALIZER {
1842 if (!UpRefs.empty())
1843 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1844 const Type *Ty = $1->get();
1845 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1846 GEN_ERROR("Cannot create a null initialized value of this type");
1847 $$ = Constant::getNullValue(Ty);
1851 | IntType ESINT64VAL { // integral constants
1852 if (!ConstantInt::isValueValidForType($1, $2))
1853 GEN_ERROR("Constant value doesn't fit in type");
1854 $$ = ConstantInt::get($1, $2, true);
1857 | IntType ESAPINTVAL { // arbitrary precision integer constants
1858 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1859 if ($2->getBitWidth() > BitWidth) {
1860 GEN_ERROR("Constant value does not fit in type");
1862 $2->sextOrTrunc(BitWidth);
1863 $$ = ConstantInt::get(*$2);
1867 | IntType EUINT64VAL { // integral constants
1868 if (!ConstantInt::isValueValidForType($1, $2))
1869 GEN_ERROR("Constant value doesn't fit in type");
1870 $$ = ConstantInt::get($1, $2, false);
1873 | IntType EUAPINTVAL { // arbitrary precision integer constants
1874 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1875 if ($2->getBitWidth() > BitWidth) {
1876 GEN_ERROR("Constant value does not fit in type");
1878 $2->zextOrTrunc(BitWidth);
1879 $$ = ConstantInt::get(*$2);
1883 | INTTYPE TRUETOK { // Boolean constants
1884 if (cast<IntegerType>($1)->getBitWidth() != 1)
1885 GEN_ERROR("Constant true must have type i1");
1886 $$ = ConstantInt::getTrue();
1889 | INTTYPE FALSETOK { // Boolean constants
1890 if (cast<IntegerType>($1)->getBitWidth() != 1)
1891 GEN_ERROR("Constant false must have type i1");
1892 $$ = ConstantInt::getFalse();
1895 | FPType FPVAL { // Floating point constants
1896 if (!ConstantFP::isValueValidForType($1, *$2))
1897 GEN_ERROR("Floating point constant invalid for type");
1898 // Lexer has no type info, so builds all float and double FP constants
1899 // as double. Fix this here. Long double is done right.
1900 if (&$2->getSemantics()==&APFloat::IEEEdouble && $1==Type::FloatTy)
1901 $2->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven);
1902 $$ = ConstantFP::get(*$2);
1908 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1909 if (!UpRefs.empty())
1910 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1912 const Type *DestTy = $5->get();
1913 if (!CastInst::castIsValid($1, $3, DestTy))
1914 GEN_ERROR("invalid cast opcode for cast from '" +
1915 Val->getType()->getDescription() + "' to '" +
1916 DestTy->getDescription() + "'");
1917 $$ = ConstantExpr::getCast($1, $3, DestTy);
1920 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1921 if (!isa<PointerType>($3->getType()))
1922 GEN_ERROR("GetElementPtr requires a pointer operand");
1925 GetElementPtrInst::getIndexedType($3->getType(), $4->begin(), $4->end());
1927 GEN_ERROR("Index list invalid for constant getelementptr");
1929 SmallVector<Constant*, 8> IdxVec;
1930 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1931 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1932 IdxVec.push_back(C);
1934 GEN_ERROR("Indices to constant getelementptr must be constants");
1938 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1941 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1942 if ($3->getType() != Type::Int1Ty)
1943 GEN_ERROR("Select condition must be of boolean type");
1944 if ($5->getType() != $7->getType())
1945 GEN_ERROR("Select operand types must match");
1946 $$ = ConstantExpr::getSelect($3, $5, $7);
1949 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1950 if ($3->getType() != $5->getType())
1951 GEN_ERROR("Binary operator types must match");
1953 $$ = ConstantExpr::get($1, $3, $5);
1955 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1956 if ($3->getType() != $5->getType())
1957 GEN_ERROR("Logical operator types must match");
1958 if (!$3->getType()->isInteger()) {
1959 if (!isa<VectorType>($3->getType()) ||
1960 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1961 GEN_ERROR("Logical operator requires integral operands");
1963 $$ = ConstantExpr::get($1, $3, $5);
1966 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1967 if ($4->getType() != $6->getType())
1968 GEN_ERROR("icmp operand types must match");
1969 $$ = ConstantExpr::getICmp($2, $4, $6);
1971 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1972 if ($4->getType() != $6->getType())
1973 GEN_ERROR("fcmp operand types must match");
1974 $$ = ConstantExpr::getFCmp($2, $4, $6);
1976 | VICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1977 if ($4->getType() != $6->getType())
1978 GEN_ERROR("vicmp operand types must match");
1979 $$ = ConstantExpr::getVICmp($2, $4, $6);
1981 | VFCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1982 if ($4->getType() != $6->getType())
1983 GEN_ERROR("vfcmp operand types must match");
1984 $$ = ConstantExpr::getVFCmp($2, $4, $6);
1986 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1987 if (!ExtractElementInst::isValidOperands($3, $5))
1988 GEN_ERROR("Invalid extractelement operands");
1989 $$ = ConstantExpr::getExtractElement($3, $5);
1992 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1993 if (!InsertElementInst::isValidOperands($3, $5, $7))
1994 GEN_ERROR("Invalid insertelement operands");
1995 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1998 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1999 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
2000 GEN_ERROR("Invalid shufflevector operands");
2001 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
2004 | EXTRACTVALUE '(' ConstVal ConstantIndexList ')' {
2005 if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType()))
2006 GEN_ERROR("ExtractValue requires an aggregate operand");
2008 $$ = ConstantExpr::getExtractValue($3, &(*$4)[0], $4->size());
2012 | INSERTVALUE '(' ConstVal ',' ConstVal ConstantIndexList ')' {
2013 if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType()))
2014 GEN_ERROR("InsertValue requires an aggregate operand");
2016 $$ = ConstantExpr::getInsertValue($3, $5, &(*$6)[0], $6->size());
2022 // ConstVector - A list of comma separated constants.
2023 ConstVector : ConstVector ',' ConstVal {
2024 ($$ = $1)->push_back($3);
2028 $$ = new std::vector<Constant*>();
2034 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
2035 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
2038 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
2040 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
2041 AliaseeRef : ResultTypes SymbolicValueRef {
2042 const Type* VTy = $1->get();
2043 Value *V = getVal(VTy, $2);
2045 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
2047 GEN_ERROR("Aliases can be created only to global values");
2053 | BITCAST '(' AliaseeRef TO Types ')' {
2055 const Type *DestTy = $5->get();
2056 if (!CastInst::castIsValid($1, $3, DestTy))
2057 GEN_ERROR("invalid cast opcode for cast from '" +
2058 Val->getType()->getDescription() + "' to '" +
2059 DestTy->getDescription() + "'");
2061 $$ = ConstantExpr::getCast($1, $3, DestTy);
2066 //===----------------------------------------------------------------------===//
2067 // Rules to match Modules
2068 //===----------------------------------------------------------------------===//
2070 // Module rule: Capture the result of parsing the whole file into a result
2075 $$ = ParserResult = CurModule.CurrentModule;
2076 CurModule.ModuleDone();
2080 $$ = ParserResult = CurModule.CurrentModule;
2081 CurModule.ModuleDone();
2088 | DefinitionList Definition
2092 : DEFINE { CurFun.isDeclare = false; } Function {
2093 CurFun.FunctionDone();
2096 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2099 | MODULE ASM_TOK AsmBlock {
2102 | OptLocalAssign TYPE Types {
2103 if (!UpRefs.empty())
2104 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2105 // Eagerly resolve types. This is not an optimization, this is a
2106 // requirement that is due to the fact that we could have this:
2108 // %list = type { %list * }
2109 // %list = type { %list * } ; repeated type decl
2111 // If types are not resolved eagerly, then the two types will not be
2112 // determined to be the same type!
2114 ResolveTypeTo($1, *$3);
2116 if (!setTypeName(*$3, $1) && !$1) {
2118 // If this is a named type that is not a redefinition, add it to the slot
2120 CurModule.Types.push_back(*$3);
2126 | OptLocalAssign TYPE VOID {
2127 ResolveTypeTo($1, $3);
2129 if (!setTypeName($3, $1) && !$1) {
2131 // If this is a named type that is not a redefinition, add it to the slot
2133 CurModule.Types.push_back($3);
2137 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal
2139 /* "Externally Visible" Linkage */
2141 GEN_ERROR("Global value initializer is not a constant");
2142 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2143 $2, $4, $5->getType(), $5, $3, $6);
2145 } GlobalVarAttributes {
2148 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2149 ConstVal OptAddrSpace {
2151 GEN_ERROR("Global value initializer is not a constant");
2152 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4, $7);
2154 } GlobalVarAttributes {
2157 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2158 Types OptAddrSpace {
2159 if (!UpRefs.empty())
2160 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2161 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4, $7);
2164 } GlobalVarAttributes {
2168 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2175 GEN_ERROR("Alias name cannot be empty");
2177 Constant* Aliasee = $5;
2179 GEN_ERROR(std::string("Invalid aliasee for alias: ") + Name);
2181 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2182 CurModule.CurrentModule);
2183 GA->setVisibility($2);
2184 InsertValue(GA, CurModule.Values);
2187 // If there was a forward reference of this alias, resolve it now.
2191 ID = ValID::createGlobalName(Name);
2193 ID = ValID::createGlobalID(CurModule.Values.size()-1);
2195 if (GlobalValue *FWGV =
2196 CurModule.GetForwardRefForGlobal(GA->getType(), ID)) {
2197 // Replace uses of the fwdref with the actual alias.
2198 FWGV->replaceAllUsesWith(GA);
2199 if (GlobalVariable *GV = dyn_cast<GlobalVariable>(FWGV))
2200 GV->eraseFromParent();
2202 cast<Function>(FWGV)->eraseFromParent();
2208 | TARGET TargetDefinition {
2211 | DEPLIBS '=' LibrariesDefinition {
2217 AsmBlock : STRINGCONSTANT {
2218 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2219 if (AsmSoFar.empty())
2220 CurModule.CurrentModule->setModuleInlineAsm(*$1);
2222 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+*$1);
2227 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2228 CurModule.CurrentModule->setTargetTriple(*$3);
2231 | DATALAYOUT '=' STRINGCONSTANT {
2232 CurModule.CurrentModule->setDataLayout(*$3);
2236 LibrariesDefinition : '[' LibList ']';
2238 LibList : LibList ',' STRINGCONSTANT {
2239 CurModule.CurrentModule->addLibrary(*$3);
2244 CurModule.CurrentModule->addLibrary(*$1);
2248 | /* empty: end of list */ {
2253 //===----------------------------------------------------------------------===//
2254 // Rules to match Function Headers
2255 //===----------------------------------------------------------------------===//
2257 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2258 if (!UpRefs.empty())
2259 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2260 if (!(*$3)->isFirstClassType())
2261 GEN_ERROR("Argument types must be first-class");
2262 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2267 | Types OptParamAttrs OptLocalName {
2268 if (!UpRefs.empty())
2269 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2270 if (!(*$1)->isFirstClassType())
2271 GEN_ERROR("Argument types must be first-class");
2272 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2273 $$ = new ArgListType;
2278 ArgList : ArgListH {
2282 | ArgListH ',' DOTDOTDOT {
2284 struct ArgListEntry E;
2285 E.Ty = new PATypeHolder(Type::VoidTy);
2287 E.Attrs = ParamAttr::None;
2292 $$ = new ArgListType;
2293 struct ArgListEntry E;
2294 E.Ty = new PATypeHolder(Type::VoidTy);
2296 E.Attrs = ParamAttr::None;
2305 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2306 OptFuncAttrs OptSection OptAlign OptGC {
2307 std::string FunctionName(*$3);
2308 delete $3; // Free strdup'd memory!
2310 // Check the function result for abstractness if this is a define. We should
2311 // have no abstract types at this point
2312 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2313 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2315 if (!FunctionType::isValidReturnType(*$2))
2316 GEN_ERROR("Invalid result type for LLVM function");
2318 std::vector<const Type*> ParamTypeList;
2319 SmallVector<ParamAttrsWithIndex, 8> Attrs;
2320 if ($7 != ParamAttr::None)
2321 Attrs.push_back(ParamAttrsWithIndex::get(0, $7));
2322 if ($5) { // If there are arguments...
2324 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I, ++index) {
2325 const Type* Ty = I->Ty->get();
2326 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2327 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2328 ParamTypeList.push_back(Ty);
2329 if (Ty != Type::VoidTy && I->Attrs != ParamAttr::None)
2330 Attrs.push_back(ParamAttrsWithIndex::get(index, I->Attrs));
2334 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2335 if (isVarArg) ParamTypeList.pop_back();
2339 PAL = PAListPtr::get(Attrs.begin(), Attrs.end());
2341 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg);
2342 const PointerType *PFT = PointerType::getUnqual(FT);
2346 if (!FunctionName.empty()) {
2347 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2349 ID = ValID::createGlobalID(CurModule.Values.size());
2353 // See if this function was forward referenced. If so, recycle the object.
2354 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2355 // Move the function to the end of the list, from whereever it was
2356 // previously inserted.
2357 Fn = cast<Function>(FWRef);
2358 assert(Fn->getParamAttrs().isEmpty() &&
2359 "Forward reference has parameter attributes!");
2360 CurModule.CurrentModule->getFunctionList().remove(Fn);
2361 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2362 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2363 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2364 if (Fn->getFunctionType() != FT ) {
2365 // The existing function doesn't have the same type. This is an overload
2367 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2368 } else if (Fn->getParamAttrs() != PAL) {
2369 // The existing function doesn't have the same parameter attributes.
2370 // This is an overload error.
2371 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2372 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2373 // Neither the existing or the current function is a declaration and they
2374 // have the same name and same type. Clearly this is a redefinition.
2375 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2376 } else if (Fn->isDeclaration()) {
2377 // Make sure to strip off any argument names so we can't get conflicts.
2378 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2382 } else { // Not already defined?
2383 Fn = Function::Create(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2384 CurModule.CurrentModule);
2385 InsertValue(Fn, CurModule.Values);
2388 CurFun.FunctionStart(Fn);
2390 if (CurFun.isDeclare) {
2391 // If we have declaration, always overwrite linkage. This will allow us to
2392 // correctly handle cases, when pointer to function is passed as argument to
2393 // another function.
2394 Fn->setLinkage(CurFun.Linkage);
2395 Fn->setVisibility(CurFun.Visibility);
2397 Fn->setCallingConv($1);
2398 Fn->setParamAttrs(PAL);
2399 Fn->setAlignment($9);
2401 Fn->setSection(*$8);
2405 Fn->setGC($10->c_str());
2409 // Add all of the arguments we parsed to the function...
2410 if ($5) { // Is null if empty...
2411 if (isVarArg) { // Nuke the last entry
2412 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2413 "Not a varargs marker!");
2414 delete $5->back().Ty;
2415 $5->pop_back(); // Delete the last entry
2417 Function::arg_iterator ArgIt = Fn->arg_begin();
2418 Function::arg_iterator ArgEnd = Fn->arg_end();
2420 for (ArgListType::iterator I = $5->begin();
2421 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2422 delete I->Ty; // Delete the typeholder...
2423 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2429 delete $5; // We're now done with the argument list
2434 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2436 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2437 $$ = CurFun.CurrentFunction;
2439 // Make sure that we keep track of the linkage type even if there was a
2440 // previous "declare".
2442 $$->setVisibility($2);
2445 END : ENDTOK | '}'; // Allow end of '}' to end a function
2447 Function : BasicBlockList END {
2452 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2453 CurFun.CurrentFunction->setLinkage($1);
2454 CurFun.CurrentFunction->setVisibility($2);
2455 $$ = CurFun.CurrentFunction;
2456 CurFun.FunctionDone();
2460 //===----------------------------------------------------------------------===//
2461 // Rules to match Basic Blocks
2462 //===----------------------------------------------------------------------===//
2464 OptSideEffect : /* empty */ {
2473 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2474 $$ = ValID::create($1);
2478 $$ = ValID::create($1);
2481 | ESAPINTVAL { // arbitrary precision integer constants
2482 $$ = ValID::create(*$1, true);
2486 | EUAPINTVAL { // arbitrary precision integer constants
2487 $$ = ValID::create(*$1, false);
2491 | FPVAL { // Perhaps it's an FP constant?
2492 $$ = ValID::create($1);
2496 $$ = ValID::create(ConstantInt::getTrue());
2500 $$ = ValID::create(ConstantInt::getFalse());
2504 $$ = ValID::createNull();
2508 $$ = ValID::createUndef();
2511 | ZEROINITIALIZER { // A vector zero constant.
2512 $$ = ValID::createZeroInit();
2515 | '<' ConstVector '>' { // Nonempty unsized packed vector
2516 const Type *ETy = (*$2)[0]->getType();
2517 unsigned NumElements = $2->size();
2519 if (!ETy->isInteger() && !ETy->isFloatingPoint())
2520 GEN_ERROR("Invalid vector element type: " + ETy->getDescription());
2522 VectorType* pt = VectorType::get(ETy, NumElements);
2523 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt));
2525 // Verify all elements are correct type!
2526 for (unsigned i = 0; i < $2->size(); i++) {
2527 if (ETy != (*$2)[i]->getType())
2528 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2529 ETy->getDescription() +"' as required!\nIt is of type '" +
2530 (*$2)[i]->getType()->getDescription() + "'.");
2533 $$ = ValID::create(ConstantVector::get(pt, *$2));
2534 delete PTy; delete $2;
2537 | '[' ConstVector ']' { // Nonempty unsized arr
2538 const Type *ETy = (*$2)[0]->getType();
2539 uint64_t NumElements = $2->size();
2541 if (!ETy->isFirstClassType())
2542 GEN_ERROR("Invalid array element type: " + ETy->getDescription());
2544 ArrayType *ATy = ArrayType::get(ETy, NumElements);
2545 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(ATy));
2547 // Verify all elements are correct type!
2548 for (unsigned i = 0; i < $2->size(); i++) {
2549 if (ETy != (*$2)[i]->getType())
2550 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2551 ETy->getDescription() +"' as required!\nIt is of type '"+
2552 (*$2)[i]->getType()->getDescription() + "'.");
2555 $$ = ValID::create(ConstantArray::get(ATy, *$2));
2556 delete PTy; delete $2;
2560 // Use undef instead of an array because it's inconvenient to determine
2561 // the element type at this point, there being no elements to examine.
2562 $$ = ValID::createUndef();
2565 | 'c' STRINGCONSTANT {
2566 uint64_t NumElements = $2->length();
2567 const Type *ETy = Type::Int8Ty;
2569 ArrayType *ATy = ArrayType::get(ETy, NumElements);
2571 std::vector<Constant*> Vals;
2572 for (unsigned i = 0; i < $2->length(); ++i)
2573 Vals.push_back(ConstantInt::get(ETy, (*$2)[i]));
2575 $$ = ValID::create(ConstantArray::get(ATy, Vals));
2578 | '{' ConstVector '}' {
2579 std::vector<const Type*> Elements($2->size());
2580 for (unsigned i = 0, e = $2->size(); i != e; ++i)
2581 Elements[i] = (*$2)[i]->getType();
2583 const StructType *STy = StructType::get(Elements);
2584 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy));
2586 $$ = ValID::create(ConstantStruct::get(STy, *$2));
2587 delete PTy; delete $2;
2591 const StructType *STy = StructType::get(std::vector<const Type*>());
2592 $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>()));
2595 | '<' '{' ConstVector '}' '>' {
2596 std::vector<const Type*> Elements($3->size());
2597 for (unsigned i = 0, e = $3->size(); i != e; ++i)
2598 Elements[i] = (*$3)[i]->getType();
2600 const StructType *STy = StructType::get(Elements, /*isPacked=*/true);
2601 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy));
2603 $$ = ValID::create(ConstantStruct::get(STy, *$3));
2604 delete PTy; delete $3;
2608 const StructType *STy = StructType::get(std::vector<const Type*>(),
2610 $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>()));
2614 $$ = ValID::create($1);
2617 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2618 $$ = ValID::createInlineAsm(*$3, *$5, $2);
2624 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2627 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2628 $$ = ValID::createLocalID($1);
2632 $$ = ValID::createGlobalID($1);
2635 | LocalName { // Is it a named reference...?
2636 $$ = ValID::createLocalName(*$1);
2640 | GlobalName { // Is it a named reference...?
2641 $$ = ValID::createGlobalName(*$1);
2646 // ValueRef - A reference to a definition... either constant or symbolic
2647 ValueRef : SymbolicValueRef | ConstValueRef;
2650 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2651 // type immediately preceeds the value reference, and allows complex constant
2652 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2653 ResolvedVal : Types ValueRef {
2654 if (!UpRefs.empty())
2655 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2656 $$ = getVal(*$1, $2);
2662 ReturnedVal : ResolvedVal {
2663 $$ = new std::vector<Value *>();
2667 | ReturnedVal ',' ResolvedVal {
2668 ($$=$1)->push_back($3);
2672 BasicBlockList : BasicBlockList BasicBlock {
2676 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2682 // Basic blocks are terminated by branching instructions:
2683 // br, br/cc, switch, ret
2685 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2686 setValueName($3, $2);
2689 $1->getInstList().push_back($3);
2694 BasicBlock : InstructionList LocalNumber BBTerminatorInst {
2696 int ValNum = InsertValue($3);
2697 if (ValNum != (int)$2)
2698 GEN_ERROR("Result value number %" + utostr($2) +
2699 " is incorrect, expected %" + utostr((unsigned)ValNum));
2701 $1->getInstList().push_back($3);
2707 InstructionList : InstructionList Inst {
2708 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2709 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2710 if (CI2->getParent() == 0)
2711 $1->getInstList().push_back(CI2);
2712 $1->getInstList().push_back($2);
2716 | /* empty */ { // Empty space between instruction lists
2717 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2720 | LABELSTR { // Labelled (named) basic block
2721 $$ = defineBBVal(ValID::createLocalName(*$1));
2728 RET ReturnedVal { // Return with a result...
2729 ValueList &VL = *$2;
2730 assert(!VL.empty() && "Invalid ret operands!");
2731 const Type *ReturnType = CurFun.CurrentFunction->getReturnType();
2732 if (VL.size() > 1 ||
2733 (isa<StructType>(ReturnType) &&
2734 (VL.empty() || VL[0]->getType() != ReturnType))) {
2735 Value *RV = UndefValue::get(ReturnType);
2736 for (unsigned i = 0, e = VL.size(); i != e; ++i) {
2737 Instruction *I = InsertValueInst::Create(RV, VL[i], i, "mrv");
2738 ($<BasicBlockVal>-1)->getInstList().push_back(I);
2741 $$ = ReturnInst::Create(RV);
2743 $$ = ReturnInst::Create(VL[0]);
2748 | RET VOID { // Return with no result...
2749 $$ = ReturnInst::Create();
2752 | BR LABEL ValueRef { // Unconditional Branch...
2753 BasicBlock* tmpBB = getBBVal($3);
2755 $$ = BranchInst::Create(tmpBB);
2756 } // Conditional Branch...
2757 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2758 if (cast<IntegerType>($2)->getBitWidth() != 1)
2759 GEN_ERROR("Branch condition must have type i1");
2760 BasicBlock* tmpBBA = getBBVal($6);
2762 BasicBlock* tmpBBB = getBBVal($9);
2764 Value* tmpVal = getVal(Type::Int1Ty, $3);
2766 $$ = BranchInst::Create(tmpBBA, tmpBBB, tmpVal);
2768 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2769 Value* tmpVal = getVal($2, $3);
2771 BasicBlock* tmpBB = getBBVal($6);
2773 SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, $8->size());
2776 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2778 for (; I != E; ++I) {
2779 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2780 S->addCase(CI, I->second);
2782 GEN_ERROR("Switch case is constant, but not a simple integer");
2787 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2788 Value* tmpVal = getVal($2, $3);
2790 BasicBlock* tmpBB = getBBVal($6);
2792 SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, 0);
2796 | INVOKE OptCallingConv ResultTypes ValueRef '(' ParamList ')' OptFuncAttrs
2797 TO LABEL ValueRef UNWIND LABEL ValueRef {
2799 // Handle the short syntax
2800 const PointerType *PFTy = 0;
2801 const FunctionType *Ty = 0;
2802 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2803 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2804 // Pull out the types of all of the arguments...
2805 std::vector<const Type*> ParamTypes;
2806 ParamList::iterator I = $6->begin(), E = $6->end();
2807 for (; I != E; ++I) {
2808 const Type *Ty = I->Val->getType();
2809 if (Ty == Type::VoidTy)
2810 GEN_ERROR("Short call syntax cannot be used with varargs");
2811 ParamTypes.push_back(Ty);
2814 if (!FunctionType::isValidReturnType(*$3))
2815 GEN_ERROR("Invalid result type for LLVM function");
2817 Ty = FunctionType::get($3->get(), ParamTypes, false);
2818 PFTy = PointerType::getUnqual(Ty);
2823 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2825 BasicBlock *Normal = getBBVal($11);
2827 BasicBlock *Except = getBBVal($14);
2830 SmallVector<ParamAttrsWithIndex, 8> Attrs;
2831 if ($8 != ParamAttr::None)
2832 Attrs.push_back(ParamAttrsWithIndex::get(0, $8));
2834 // Check the arguments
2836 if ($6->empty()) { // Has no arguments?
2837 // Make sure no arguments is a good thing!
2838 if (Ty->getNumParams() != 0)
2839 GEN_ERROR("No arguments passed to a function that "
2840 "expects arguments");
2841 } else { // Has arguments?
2842 // Loop through FunctionType's arguments and ensure they are specified
2844 FunctionType::param_iterator I = Ty->param_begin();
2845 FunctionType::param_iterator E = Ty->param_end();
2846 ParamList::iterator ArgI = $6->begin(), ArgE = $6->end();
2849 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
2850 if (ArgI->Val->getType() != *I)
2851 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2852 (*I)->getDescription() + "'");
2853 Args.push_back(ArgI->Val);
2854 if (ArgI->Attrs != ParamAttr::None)
2855 Attrs.push_back(ParamAttrsWithIndex::get(index, ArgI->Attrs));
2858 if (Ty->isVarArg()) {
2860 for (; ArgI != ArgE; ++ArgI, ++index) {
2861 Args.push_back(ArgI->Val); // push the remaining varargs
2862 if (ArgI->Attrs != ParamAttr::None)
2863 Attrs.push_back(ParamAttrsWithIndex::get(index, ArgI->Attrs));
2865 } else if (I != E || ArgI != ArgE)
2866 GEN_ERROR("Invalid number of parameters detected");
2871 PAL = PAListPtr::get(Attrs.begin(), Attrs.end());
2873 // Create the InvokeInst
2874 InvokeInst *II = InvokeInst::Create(V, Normal, Except,
2875 Args.begin(), Args.end());
2876 II->setCallingConv($2);
2877 II->setParamAttrs(PAL);
2883 $$ = new UnwindInst();
2887 $$ = new UnreachableInst();
2893 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2895 Constant *V = cast<Constant>(getExistingVal($2, $3));
2898 GEN_ERROR("May only switch on a constant pool value");
2900 BasicBlock* tmpBB = getBBVal($6);
2902 $$->push_back(std::make_pair(V, tmpBB));
2904 | IntType ConstValueRef ',' LABEL ValueRef {
2905 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2906 Constant *V = cast<Constant>(getExistingVal($1, $2));
2910 GEN_ERROR("May only switch on a constant pool value");
2912 BasicBlock* tmpBB = getBBVal($5);
2914 $$->push_back(std::make_pair(V, tmpBB));
2917 Inst : OptLocalAssign InstVal {
2918 // Is this definition named?? if so, assign the name...
2919 setValueName($2, $1);
2926 Inst : LocalNumber InstVal {
2928 int ValNum = InsertValue($2);
2930 if (ValNum != (int)$1)
2931 GEN_ERROR("Result value number %" + utostr($1) +
2932 " is incorrect, expected %" + utostr((unsigned)ValNum));
2939 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2940 if (!UpRefs.empty())
2941 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2942 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2943 Value* tmpVal = getVal(*$1, $3);
2945 BasicBlock* tmpBB = getBBVal($5);
2947 $$->push_back(std::make_pair(tmpVal, tmpBB));
2950 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2952 Value* tmpVal = getVal($1->front().first->getType(), $4);
2954 BasicBlock* tmpBB = getBBVal($6);
2956 $1->push_back(std::make_pair(tmpVal, tmpBB));
2960 ParamList : Types OptParamAttrs ValueRef OptParamAttrs {
2961 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2962 if (!UpRefs.empty())
2963 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2964 // Used for call and invoke instructions
2965 $$ = new ParamList();
2966 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getVal($1->get(), $3);
2971 | LABEL OptParamAttrs ValueRef OptParamAttrs {
2972 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2973 // Labels are only valid in ASMs
2974 $$ = new ParamList();
2975 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getBBVal($3);
2979 | ParamList ',' Types OptParamAttrs ValueRef OptParamAttrs {
2980 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2981 if (!UpRefs.empty())
2982 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2984 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getVal($3->get(), $5);
2989 | ParamList ',' LABEL OptParamAttrs ValueRef OptParamAttrs {
2990 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2992 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getBBVal($5);
2996 | /*empty*/ { $$ = new ParamList(); };
2998 IndexList // Used for gep instructions and constant expressions
2999 : /*empty*/ { $$ = new std::vector<Value*>(); }
3000 | IndexList ',' ResolvedVal {
3007 ConstantIndexList // Used for insertvalue and extractvalue instructions
3009 $$ = new std::vector<unsigned>();
3010 if ((unsigned)$2 != $2)
3011 GEN_ERROR("Index " + utostr($2) + " is not valid for insertvalue or extractvalue.");
3014 | ConstantIndexList ',' EUINT64VAL {
3016 if ((unsigned)$3 != $3)
3017 GEN_ERROR("Index " + utostr($3) + " is not valid for insertvalue or extractvalue.");
3023 OptTailCall : TAIL CALL {
3032 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
3033 if (!UpRefs.empty())
3034 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3035 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
3036 !isa<VectorType>((*$2).get()))
3038 "Arithmetic operator requires integer, FP, or packed operands");
3039 Value* val1 = getVal(*$2, $3);
3041 Value* val2 = getVal(*$2, $5);
3043 $$ = BinaryOperator::Create($1, val1, val2);
3045 GEN_ERROR("binary operator returned null");
3048 | LogicalOps Types ValueRef ',' ValueRef {
3049 if (!UpRefs.empty())
3050 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3051 if (!(*$2)->isInteger()) {
3052 if (!isa<VectorType>($2->get()) ||
3053 !cast<VectorType>($2->get())->getElementType()->isInteger())
3054 GEN_ERROR("Logical operator requires integral operands");
3056 Value* tmpVal1 = getVal(*$2, $3);
3058 Value* tmpVal2 = getVal(*$2, $5);
3060 $$ = BinaryOperator::Create($1, tmpVal1, tmpVal2);
3062 GEN_ERROR("binary operator returned null");
3065 | ICMP IPredicates Types ValueRef ',' ValueRef {
3066 if (!UpRefs.empty())
3067 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3068 if (isa<VectorType>((*$3).get()))
3069 GEN_ERROR("Vector types not supported by icmp instruction");
3070 Value* tmpVal1 = getVal(*$3, $4);
3072 Value* tmpVal2 = getVal(*$3, $6);
3074 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3076 GEN_ERROR("icmp operator returned null");
3079 | FCMP FPredicates Types ValueRef ',' ValueRef {
3080 if (!UpRefs.empty())
3081 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3082 if (isa<VectorType>((*$3).get()))
3083 GEN_ERROR("Vector types not supported by fcmp instruction");
3084 Value* tmpVal1 = getVal(*$3, $4);
3086 Value* tmpVal2 = getVal(*$3, $6);
3088 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3090 GEN_ERROR("fcmp operator returned null");
3093 | VICMP IPredicates Types ValueRef ',' ValueRef {
3094 if (!UpRefs.empty())
3095 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3096 if (!isa<VectorType>((*$3).get()))
3097 GEN_ERROR("Scalar types not supported by vicmp instruction");
3098 Value* tmpVal1 = getVal(*$3, $4);
3100 Value* tmpVal2 = getVal(*$3, $6);
3102 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3104 GEN_ERROR("icmp operator returned null");
3107 | VFCMP FPredicates Types ValueRef ',' ValueRef {
3108 if (!UpRefs.empty())
3109 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3110 if (!isa<VectorType>((*$3).get()))
3111 GEN_ERROR("Scalar types not supported by vfcmp instruction");
3112 Value* tmpVal1 = getVal(*$3, $4);
3114 Value* tmpVal2 = getVal(*$3, $6);
3116 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3118 GEN_ERROR("fcmp operator returned null");
3121 | CastOps ResolvedVal TO Types {
3122 if (!UpRefs.empty())
3123 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
3125 const Type* DestTy = $4->get();
3126 if (!CastInst::castIsValid($1, Val, DestTy))
3127 GEN_ERROR("invalid cast opcode for cast from '" +
3128 Val->getType()->getDescription() + "' to '" +
3129 DestTy->getDescription() + "'");
3130 $$ = CastInst::Create($1, Val, DestTy);
3133 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3134 if ($2->getType() != Type::Int1Ty)
3135 GEN_ERROR("select condition must be boolean");
3136 if ($4->getType() != $6->getType())
3137 GEN_ERROR("select value types should match");
3138 $$ = SelectInst::Create($2, $4, $6);
3141 | VAARG ResolvedVal ',' Types {
3142 if (!UpRefs.empty())
3143 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
3144 $$ = new VAArgInst($2, *$4);
3148 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
3149 if (!ExtractElementInst::isValidOperands($2, $4))
3150 GEN_ERROR("Invalid extractelement operands");
3151 $$ = new ExtractElementInst($2, $4);
3154 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3155 if (!InsertElementInst::isValidOperands($2, $4, $6))
3156 GEN_ERROR("Invalid insertelement operands");
3157 $$ = InsertElementInst::Create($2, $4, $6);
3160 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3161 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
3162 GEN_ERROR("Invalid shufflevector operands");
3163 $$ = new ShuffleVectorInst($2, $4, $6);
3167 const Type *Ty = $2->front().first->getType();
3168 if (!Ty->isFirstClassType())
3169 GEN_ERROR("PHI node operands must be of first class type");
3170 $$ = PHINode::Create(Ty);
3171 ((PHINode*)$$)->reserveOperandSpace($2->size());
3172 while ($2->begin() != $2->end()) {
3173 if ($2->front().first->getType() != Ty)
3174 GEN_ERROR("All elements of a PHI node must be of the same type");
3175 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
3178 delete $2; // Free the list...
3181 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ParamList ')'
3184 // Handle the short syntax
3185 const PointerType *PFTy = 0;
3186 const FunctionType *Ty = 0;
3187 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
3188 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3189 // Pull out the types of all of the arguments...
3190 std::vector<const Type*> ParamTypes;
3191 ParamList::iterator I = $6->begin(), E = $6->end();
3192 for (; I != E; ++I) {
3193 const Type *Ty = I->Val->getType();
3194 if (Ty == Type::VoidTy)
3195 GEN_ERROR("Short call syntax cannot be used with varargs");
3196 ParamTypes.push_back(Ty);
3199 if (!FunctionType::isValidReturnType(*$3))
3200 GEN_ERROR("Invalid result type for LLVM function");
3202 Ty = FunctionType::get($3->get(), ParamTypes, false);
3203 PFTy = PointerType::getUnqual(Ty);
3206 Value *V = getVal(PFTy, $4); // Get the function we're calling...
3209 // Check for call to invalid intrinsic to avoid crashing later.
3210 if (Function *theF = dyn_cast<Function>(V)) {
3211 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
3212 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
3213 !theF->getIntrinsicID(true))
3214 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
3215 theF->getName() + "'");
3218 // Set up the ParamAttrs for the function
3219 SmallVector<ParamAttrsWithIndex, 8> Attrs;
3220 if ($8 != ParamAttr::None)
3221 Attrs.push_back(ParamAttrsWithIndex::get(0, $8));
3222 // Check the arguments
3224 if ($6->empty()) { // Has no arguments?
3225 // Make sure no arguments is a good thing!
3226 if (Ty->getNumParams() != 0)
3227 GEN_ERROR("No arguments passed to a function that "
3228 "expects arguments");
3229 } else { // Has arguments?
3230 // Loop through FunctionType's arguments and ensure they are specified
3231 // correctly. Also, gather any parameter attributes.
3232 FunctionType::param_iterator I = Ty->param_begin();
3233 FunctionType::param_iterator E = Ty->param_end();
3234 ParamList::iterator ArgI = $6->begin(), ArgE = $6->end();
3237 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
3238 if (ArgI->Val->getType() != *I)
3239 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
3240 (*I)->getDescription() + "'");
3241 Args.push_back(ArgI->Val);
3242 if (ArgI->Attrs != ParamAttr::None)
3243 Attrs.push_back(ParamAttrsWithIndex::get(index, ArgI->Attrs));
3245 if (Ty->isVarArg()) {
3247 for (; ArgI != ArgE; ++ArgI, ++index) {
3248 Args.push_back(ArgI->Val); // push the remaining varargs
3249 if (ArgI->Attrs != ParamAttr::None)
3250 Attrs.push_back(ParamAttrsWithIndex::get(index, ArgI->Attrs));
3252 } else if (I != E || ArgI != ArgE)
3253 GEN_ERROR("Invalid number of parameters detected");
3256 // Finish off the ParamAttrs and check them
3259 PAL = PAListPtr::get(Attrs.begin(), Attrs.end());
3261 // Create the call node
3262 CallInst *CI = CallInst::Create(V, Args.begin(), Args.end());
3263 CI->setTailCall($1);
3264 CI->setCallingConv($2);
3265 CI->setParamAttrs(PAL);
3276 OptVolatile : VOLATILE {
3287 MemoryInst : MALLOC Types OptCAlign {
3288 if (!UpRefs.empty())
3289 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3290 $$ = new MallocInst(*$2, 0, $3);
3294 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
3295 if (!UpRefs.empty())
3296 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3297 if ($4 != Type::Int32Ty)
3298 GEN_ERROR("Malloc array size is not a 32-bit integer!");
3299 Value* tmpVal = getVal($4, $5);
3301 $$ = new MallocInst(*$2, tmpVal, $6);
3304 | ALLOCA Types OptCAlign {
3305 if (!UpRefs.empty())
3306 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3307 $$ = new AllocaInst(*$2, 0, $3);
3311 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
3312 if (!UpRefs.empty())
3313 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3314 if ($4 != Type::Int32Ty)
3315 GEN_ERROR("Alloca array size is not a 32-bit integer!");
3316 Value* tmpVal = getVal($4, $5);
3318 $$ = new AllocaInst(*$2, tmpVal, $6);
3321 | FREE ResolvedVal {
3322 if (!isa<PointerType>($2->getType()))
3323 GEN_ERROR("Trying to free nonpointer type " +
3324 $2->getType()->getDescription() + "");
3325 $$ = new FreeInst($2);
3329 | OptVolatile LOAD Types ValueRef OptCAlign {
3330 if (!UpRefs.empty())
3331 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3332 if (!isa<PointerType>($3->get()))
3333 GEN_ERROR("Can't load from nonpointer type: " +
3334 (*$3)->getDescription());
3335 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3336 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3337 (*$3)->getDescription());
3338 Value* tmpVal = getVal(*$3, $4);
3340 $$ = new LoadInst(tmpVal, "", $1, $5);
3343 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3344 if (!UpRefs.empty())
3345 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3346 const PointerType *PT = dyn_cast<PointerType>($5->get());
3348 GEN_ERROR("Can't store to a nonpointer type: " +
3349 (*$5)->getDescription());
3350 const Type *ElTy = PT->getElementType();
3351 if (ElTy != $3->getType())
3352 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3353 "' into space of type '" + ElTy->getDescription() + "'");
3355 Value* tmpVal = getVal(*$5, $6);
3357 $$ = new StoreInst($3, tmpVal, $1, $7);
3360 | GETRESULT Types ValueRef ',' EUINT64VAL {
3361 if (!UpRefs.empty())
3362 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3363 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3364 GEN_ERROR("getresult insn requires an aggregate operand");
3365 if (!ExtractValueInst::getIndexedType(*$2, $5))
3366 GEN_ERROR("Invalid getresult index for type '" +
3367 (*$2)->getDescription()+ "'");
3369 Value *tmpVal = getVal(*$2, $3);
3371 $$ = ExtractValueInst::Create(tmpVal, $5);
3374 | GETELEMENTPTR Types ValueRef IndexList {
3375 if (!UpRefs.empty())
3376 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3377 if (!isa<PointerType>($2->get()))
3378 GEN_ERROR("getelementptr insn requires pointer operand");
3380 if (!GetElementPtrInst::getIndexedType(*$2, $4->begin(), $4->end()))
3381 GEN_ERROR("Invalid getelementptr indices for type '" +
3382 (*$2)->getDescription()+ "'");
3383 Value* tmpVal = getVal(*$2, $3);
3385 $$ = GetElementPtrInst::Create(tmpVal, $4->begin(), $4->end());
3389 | EXTRACTVALUE Types ValueRef ConstantIndexList {
3390 if (!UpRefs.empty())
3391 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3392 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3393 GEN_ERROR("extractvalue insn requires an aggregate operand");
3395 if (!ExtractValueInst::getIndexedType(*$2, $4->begin(), $4->end()))
3396 GEN_ERROR("Invalid extractvalue indices for type '" +
3397 (*$2)->getDescription()+ "'");
3398 Value* tmpVal = getVal(*$2, $3);
3400 $$ = ExtractValueInst::Create(tmpVal, $4->begin(), $4->end());
3404 | INSERTVALUE Types ValueRef ',' Types ValueRef ConstantIndexList {
3405 if (!UpRefs.empty())
3406 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3407 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3408 GEN_ERROR("extractvalue insn requires an aggregate operand");
3410 if (ExtractValueInst::getIndexedType(*$2, $7->begin(), $7->end()) != $5->get())
3411 GEN_ERROR("Invalid insertvalue indices for type '" +
3412 (*$2)->getDescription()+ "'");
3413 Value* aggVal = getVal(*$2, $3);
3414 Value* tmpVal = getVal(*$5, $6);
3416 $$ = InsertValueInst::Create(aggVal, tmpVal, $7->begin(), $7->end());
3425 // common code from the two 'RunVMAsmParser' functions
3426 static Module* RunParser(Module * M) {
3427 CurModule.CurrentModule = M;
3428 // Check to make sure the parser succeeded
3431 delete ParserResult;
3435 // Emit an error if there are any unresolved types left.
3436 if (!CurModule.LateResolveTypes.empty()) {
3437 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3438 if (DID.Type == ValID::LocalName) {
3439 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3441 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3444 delete ParserResult;
3448 // Emit an error if there are any unresolved values left.
3449 if (!CurModule.LateResolveValues.empty()) {
3450 Value *V = CurModule.LateResolveValues.back();
3451 std::map<Value*, std::pair<ValID, int> >::iterator I =
3452 CurModule.PlaceHolderInfo.find(V);
3454 if (I != CurModule.PlaceHolderInfo.end()) {
3455 ValID &DID = I->second.first;
3456 if (DID.Type == ValID::LocalName) {
3457 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3459 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3462 delete ParserResult;
3467 // Check to make sure that parsing produced a result
3471 // Reset ParserResult variable while saving its value for the result.
3472 Module *Result = ParserResult;
3478 void llvm::GenerateError(const std::string &message, int LineNo) {
3479 if (LineNo == -1) LineNo = LLLgetLineNo();
3480 // TODO: column number in exception
3482 TheParseError->setError(LLLgetFilename(), message, LineNo);
3486 int yyerror(const char *ErrorMsg) {
3487 std::string where = LLLgetFilename() + ":" + utostr(LLLgetLineNo()) + ": ";
3488 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3489 if (yychar != YYEMPTY && yychar != 0) {
3490 errMsg += " while reading token: '";
3491 errMsg += std::string(LLLgetTokenStart(),
3492 LLLgetTokenStart()+LLLgetTokenLength()) + "'";
3494 GenerateError(errMsg);