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()) {
143 I->first.second.destroy();
149 bool TypeIsUnresolved(PATypeHolder* PATy) {
150 // If it isn't abstract, its resolved
151 const Type* Ty = PATy->get();
152 if (!Ty->isAbstract())
154 // Traverse the type looking for abstract types. If it isn't abstract then
155 // we don't need to traverse that leg of the type.
156 std::vector<const Type*> WorkList, SeenList;
157 WorkList.push_back(Ty);
158 while (!WorkList.empty()) {
159 const Type* Ty = WorkList.back();
160 SeenList.push_back(Ty);
162 if (const OpaqueType* OpTy = dyn_cast<OpaqueType>(Ty)) {
163 // Check to see if this is an unresolved type
164 std::map<ValID, PATypeHolder>::iterator I = LateResolveTypes.begin();
165 std::map<ValID, PATypeHolder>::iterator E = LateResolveTypes.end();
166 for ( ; I != E; ++I) {
167 if (I->second.get() == OpTy)
170 } else if (const SequentialType* SeqTy = dyn_cast<SequentialType>(Ty)) {
171 const Type* TheTy = SeqTy->getElementType();
172 if (TheTy->isAbstract() && TheTy != Ty) {
173 std::vector<const Type*>::iterator I = SeenList.begin(),
179 WorkList.push_back(TheTy);
181 } else if (const StructType* StrTy = dyn_cast<StructType>(Ty)) {
182 for (unsigned i = 0; i < StrTy->getNumElements(); ++i) {
183 const Type* TheTy = StrTy->getElementType(i);
184 if (TheTy->isAbstract() && TheTy != Ty) {
185 std::vector<const Type*>::iterator I = SeenList.begin(),
191 WorkList.push_back(TheTy);
200 static struct PerFunctionInfo {
201 Function *CurrentFunction; // Pointer to current function being created
203 ValueList Values; // Keep track of #'d definitions
205 ValueList LateResolveValues;
206 bool isDeclare; // Is this function a forward declararation?
207 GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
208 GlobalValue::VisibilityTypes Visibility;
210 /// BBForwardRefs - When we see forward references to basic blocks, keep
211 /// track of them here.
212 std::map<ValID, BasicBlock*> BBForwardRefs;
214 inline PerFunctionInfo() {
217 Linkage = GlobalValue::ExternalLinkage;
218 Visibility = GlobalValue::DefaultVisibility;
221 inline void FunctionStart(Function *M) {
226 void FunctionDone() {
227 // Any forward referenced blocks left?
228 if (!BBForwardRefs.empty()) {
229 GenerateError("Undefined reference to label " +
230 BBForwardRefs.begin()->second->getName());
234 // Resolve all forward references now.
235 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
237 Values.clear(); // Clear out function local definitions
238 BBForwardRefs.clear();
241 Linkage = GlobalValue::ExternalLinkage;
242 Visibility = GlobalValue::DefaultVisibility;
244 } CurFun; // Info for the current function...
246 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
249 //===----------------------------------------------------------------------===//
250 // Code to handle definitions of all the types
251 //===----------------------------------------------------------------------===//
253 /// InsertValue - Insert a value into the value table. If it is named, this
254 /// returns -1, otherwise it returns the slot number for the value.
255 static int InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
256 // Things that have names or are void typed don't get slot numbers
257 if (V->hasName() || (V->getType() == Type::VoidTy))
260 // In the case of function values, we have to allow for the forward reference
261 // of basic blocks, which are included in the numbering. Consequently, we keep
262 // track of the next insertion location with NextValNum. When a BB gets
263 // inserted, it could change the size of the CurFun.Values vector.
264 if (&ValueTab == &CurFun.Values) {
265 if (ValueTab.size() <= CurFun.NextValNum)
266 ValueTab.resize(CurFun.NextValNum+1);
267 ValueTab[CurFun.NextValNum++] = V;
268 return CurFun.NextValNum-1;
270 // For all other lists, its okay to just tack it on the back of the vector.
271 ValueTab.push_back(V);
272 return ValueTab.size()-1;
275 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
277 case ValID::LocalID: // Is it a numbered definition?
278 // Module constants occupy the lowest numbered slots...
279 if (D.Num < CurModule.Types.size())
280 return CurModule.Types[D.Num];
282 case ValID::LocalName: // Is it a named definition?
283 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.getName())) {
284 D.destroy(); // Free old strdup'd memory...
289 GenerateError("Internal parser error: Invalid symbol type reference");
293 // If we reached here, we referenced either a symbol that we don't know about
294 // or an id number that hasn't been read yet. We may be referencing something
295 // forward, so just create an entry to be resolved later and get to it...
297 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
300 if (inFunctionScope()) {
301 if (D.Type == ValID::LocalName) {
302 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
305 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
310 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
311 if (I != CurModule.LateResolveTypes.end()) {
316 Type *Typ = OpaqueType::get();
317 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
321 // getExistingVal - Look up the value specified by the provided type and
322 // the provided ValID. If the value exists and has already been defined, return
323 // it. Otherwise return null.
325 static Value *getExistingVal(const Type *Ty, const ValID &D) {
326 if (isa<FunctionType>(Ty)) {
327 GenerateError("Functions are not values and "
328 "must be referenced as pointers");
333 case ValID::LocalID: { // Is it a numbered definition?
334 // Check that the number is within bounds.
335 if (D.Num >= CurFun.Values.size())
337 Value *Result = CurFun.Values[D.Num];
338 if (Ty != Result->getType()) {
339 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
340 Result->getType()->getDescription() + "' does not match "
341 "expected type, '" + Ty->getDescription() + "'");
346 case ValID::GlobalID: { // Is it a numbered definition?
347 if (D.Num >= CurModule.Values.size())
349 Value *Result = CurModule.Values[D.Num];
350 if (Ty != Result->getType()) {
351 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
352 Result->getType()->getDescription() + "' does not match "
353 "expected type, '" + Ty->getDescription() + "'");
359 case ValID::LocalName: { // Is it a named definition?
360 if (!inFunctionScope())
362 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
363 Value *N = SymTab.lookup(D.getName());
366 if (N->getType() != Ty)
369 D.destroy(); // Free old strdup'd memory...
372 case ValID::GlobalName: { // Is it a named definition?
373 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
374 Value *N = SymTab.lookup(D.getName());
377 if (N->getType() != Ty)
380 D.destroy(); // Free old strdup'd memory...
384 // Check to make sure that "Ty" is an integral type, and that our
385 // value will fit into the specified type...
386 case ValID::ConstSIntVal: // Is it a constant pool reference??
387 if (!isa<IntegerType>(Ty) ||
388 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
389 GenerateError("Signed integral constant '" +
390 itostr(D.ConstPool64) + "' is invalid for type '" +
391 Ty->getDescription() + "'");
394 return ConstantInt::get(Ty, D.ConstPool64, true);
396 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
397 if (isa<IntegerType>(Ty) &&
398 ConstantInt::isValueValidForType(Ty, D.UConstPool64))
399 return ConstantInt::get(Ty, D.UConstPool64);
401 if (!isa<IntegerType>(Ty) ||
402 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
403 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
404 "' is invalid or out of range for type '" +
405 Ty->getDescription() + "'");
408 // This is really a signed reference. Transmogrify.
409 return ConstantInt::get(Ty, D.ConstPool64, true);
411 case ValID::ConstAPInt: // Is it an unsigned const pool reference?
412 if (!isa<IntegerType>(Ty)) {
413 GenerateError("Integral constant '" + D.getName() +
414 "' is invalid or out of range for type '" +
415 Ty->getDescription() + "'");
420 APSInt Tmp = *D.ConstPoolInt;
421 Tmp.extOrTrunc(Ty->getPrimitiveSizeInBits());
422 return ConstantInt::get(Tmp);
425 case ValID::ConstFPVal: // Is it a floating point const pool reference?
426 if (!Ty->isFloatingPoint() ||
427 !ConstantFP::isValueValidForType(Ty, *D.ConstPoolFP)) {
428 GenerateError("FP constant invalid for type");
431 // Lexer has no type info, so builds all float and double FP constants
432 // as double. Fix this here. Long double does not need this.
433 if (&D.ConstPoolFP->getSemantics() == &APFloat::IEEEdouble &&
436 D.ConstPoolFP->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven,
439 return ConstantFP::get(*D.ConstPoolFP);
441 case ValID::ConstNullVal: // Is it a null value?
442 if (!isa<PointerType>(Ty)) {
443 GenerateError("Cannot create a a non pointer null");
446 return ConstantPointerNull::get(cast<PointerType>(Ty));
448 case ValID::ConstUndefVal: // Is it an undef value?
449 return UndefValue::get(Ty);
451 case ValID::ConstZeroVal: // Is it a zero value?
452 return Constant::getNullValue(Ty);
454 case ValID::ConstantVal: // Fully resolved constant?
455 if (D.ConstantValue->getType() != Ty) {
456 GenerateError("Constant expression type different from required type");
459 return D.ConstantValue;
461 case ValID::InlineAsmVal: { // Inline asm expression
462 const PointerType *PTy = dyn_cast<PointerType>(Ty);
463 const FunctionType *FTy =
464 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
465 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
466 GenerateError("Invalid type for asm constraint string");
469 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
470 D.IAD->HasSideEffects);
471 D.destroy(); // Free InlineAsmDescriptor.
475 assert(0 && "Unhandled case!");
479 assert(0 && "Unhandled case!");
483 // getVal - This function is identical to getExistingVal, except that if a
484 // value is not already defined, it "improvises" by creating a placeholder var
485 // that looks and acts just like the requested variable. When the value is
486 // defined later, all uses of the placeholder variable are replaced with the
489 static Value *getVal(const Type *Ty, const ValID &ID) {
490 if (Ty == Type::LabelTy) {
491 GenerateError("Cannot use a basic block here");
495 // See if the value has already been defined.
496 Value *V = getExistingVal(Ty, ID);
498 if (TriggerError) return 0;
500 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
501 GenerateError("Invalid use of a non-first-class type");
505 // If we reached here, we referenced either a symbol that we don't know about
506 // or an id number that hasn't been read yet. We may be referencing something
507 // forward, so just create an entry to be resolved later and get to it...
510 case ValID::GlobalName:
511 case ValID::GlobalID: {
512 const PointerType *PTy = dyn_cast<PointerType>(Ty);
514 GenerateError("Invalid type for reference to global" );
517 const Type* ElTy = PTy->getElementType();
518 if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy))
519 V = Function::Create(FTy, GlobalValue::ExternalLinkage);
521 V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage, 0, "",
522 (Module*)0, false, PTy->getAddressSpace());
526 V = new Argument(Ty);
529 // Remember where this forward reference came from. FIXME, shouldn't we try
530 // to recycle these things??
531 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
534 if (inFunctionScope())
535 InsertValue(V, CurFun.LateResolveValues);
537 InsertValue(V, CurModule.LateResolveValues);
541 /// defineBBVal - This is a definition of a new basic block with the specified
542 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
543 static BasicBlock *defineBBVal(const ValID &ID) {
544 assert(inFunctionScope() && "Can't get basic block at global scope!");
548 // First, see if this was forward referenced
550 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
551 if (BBI != CurFun.BBForwardRefs.end()) {
553 // The forward declaration could have been inserted anywhere in the
554 // function: insert it into the correct place now.
555 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
556 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
558 // We're about to erase the entry, save the key so we can clean it up.
559 ValID Tmp = BBI->first;
561 // Erase the forward ref from the map as its no longer "forward"
562 CurFun.BBForwardRefs.erase(ID);
564 // The key has been removed from the map but so we don't want to leave
565 // strdup'd memory around so destroy it too.
568 // If its a numbered definition, bump the number and set the BB value.
569 if (ID.Type == ValID::LocalID) {
570 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
574 // We haven't seen this BB before and its first mention is a definition.
575 // Just create it and return it.
576 std::string Name (ID.Type == ValID::LocalName ? ID.getName() : "");
577 BB = BasicBlock::Create(Name, CurFun.CurrentFunction);
578 if (ID.Type == ValID::LocalID) {
579 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
588 /// getBBVal - get an existing BB value or create a forward reference for it.
590 static BasicBlock *getBBVal(const ValID &ID) {
591 assert(inFunctionScope() && "Can't get basic block at global scope!");
595 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
596 if (BBI != CurFun.BBForwardRefs.end()) {
598 } if (ID.Type == ValID::LocalName) {
599 std::string Name = ID.getName();
600 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
602 if (N->getType()->getTypeID() == Type::LabelTyID)
603 BB = cast<BasicBlock>(N);
605 GenerateError("Reference to label '" + Name + "' is actually of type '"+
606 N->getType()->getDescription() + "'");
608 } else if (ID.Type == ValID::LocalID) {
609 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
610 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
611 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
613 GenerateError("Reference to label '%" + utostr(ID.Num) +
614 "' is actually of type '"+
615 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
618 GenerateError("Illegal label reference " + ID.getName());
622 // If its already been defined, return it now.
624 ID.destroy(); // Free strdup'd memory.
628 // Otherwise, this block has not been seen before, create it.
630 if (ID.Type == ValID::LocalName)
632 BB = BasicBlock::Create(Name, CurFun.CurrentFunction);
634 // Insert it in the forward refs map.
635 CurFun.BBForwardRefs[ID] = BB;
641 //===----------------------------------------------------------------------===//
642 // Code to handle forward references in instructions
643 //===----------------------------------------------------------------------===//
645 // This code handles the late binding needed with statements that reference
646 // values not defined yet... for example, a forward branch, or the PHI node for
649 // This keeps a table (CurFun.LateResolveValues) of all such forward references
650 // and back patchs after we are done.
653 // ResolveDefinitions - If we could not resolve some defs at parsing
654 // time (forward branches, phi functions for loops, etc...) resolve the
658 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
659 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
660 while (!LateResolvers.empty()) {
661 Value *V = LateResolvers.back();
662 LateResolvers.pop_back();
664 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
665 CurModule.PlaceHolderInfo.find(V);
666 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
668 ValID &DID = PHI->second.first;
670 Value *TheRealValue = getExistingVal(V->getType(), DID);
674 V->replaceAllUsesWith(TheRealValue);
676 CurModule.PlaceHolderInfo.erase(PHI);
677 } else if (FutureLateResolvers) {
678 // Functions have their unresolved items forwarded to the module late
680 InsertValue(V, *FutureLateResolvers);
682 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
683 GenerateError("Reference to an invalid definition: '" +DID.getName()+
684 "' of type '" + V->getType()->getDescription() + "'",
688 GenerateError("Reference to an invalid definition: #" +
689 itostr(DID.Num) + " of type '" +
690 V->getType()->getDescription() + "'",
696 LateResolvers.clear();
699 // ResolveTypeTo - A brand new type was just declared. This means that (if
700 // name is not null) things referencing Name can be resolved. Otherwise, things
701 // refering to the number can be resolved. Do this now.
703 static void ResolveTypeTo(std::string *Name, const Type *ToTy) {
706 D = ValID::createLocalName(*Name);
708 D = ValID::createLocalID(CurModule.Types.size());
710 std::map<ValID, PATypeHolder>::iterator I =
711 CurModule.LateResolveTypes.find(D);
712 if (I != CurModule.LateResolveTypes.end()) {
713 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
715 CurModule.LateResolveTypes.erase(I);
720 // setValueName - Set the specified value to the name given. The name may be
721 // null potentially, in which case this is a noop. The string passed in is
722 // assumed to be a malloc'd string buffer, and is free'd by this function.
724 static void setValueName(Value *V, std::string *NameStr) {
725 if (!NameStr) return;
726 std::string Name(*NameStr); // Copy string
727 delete NameStr; // Free old string
729 if (V->getType() == Type::VoidTy) {
730 GenerateError("Can't assign name '" + Name+"' to value with void type");
734 assert(inFunctionScope() && "Must be in function scope!");
735 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
736 if (ST.lookup(Name)) {
737 GenerateError("Redefinition of value '" + Name + "' of type '" +
738 V->getType()->getDescription() + "'");
746 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
747 /// this is a declaration, otherwise it is a definition.
748 static GlobalVariable *
749 ParseGlobalVariable(std::string *NameStr,
750 GlobalValue::LinkageTypes Linkage,
751 GlobalValue::VisibilityTypes Visibility,
752 bool isConstantGlobal, const Type *Ty,
753 Constant *Initializer, bool IsThreadLocal,
754 unsigned AddressSpace = 0) {
755 if (isa<FunctionType>(Ty)) {
756 GenerateError("Cannot declare global vars of function type");
759 if (Ty == Type::LabelTy) {
760 GenerateError("Cannot declare global vars of label type");
764 const PointerType *PTy = PointerType::get(Ty, AddressSpace);
768 Name = *NameStr; // Copy string
769 delete NameStr; // Free old string
772 // See if this global value was forward referenced. If so, recycle the
776 ID = ValID::createGlobalName(Name);
778 ID = ValID::createGlobalID(CurModule.Values.size());
781 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
782 // Move the global to the end of the list, from whereever it was
783 // previously inserted.
784 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
785 CurModule.CurrentModule->getGlobalList().remove(GV);
786 CurModule.CurrentModule->getGlobalList().push_back(GV);
787 GV->setInitializer(Initializer);
788 GV->setLinkage(Linkage);
789 GV->setVisibility(Visibility);
790 GV->setConstant(isConstantGlobal);
791 GV->setThreadLocal(IsThreadLocal);
792 InsertValue(GV, CurModule.Values);
799 // If this global has a name
801 // if the global we're parsing has an initializer (is a definition) and
802 // has external linkage.
803 if (Initializer && Linkage != GlobalValue::InternalLinkage)
804 // If there is already a global with external linkage with this name
805 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
806 // If we allow this GVar to get created, it will be renamed in the
807 // symbol table because it conflicts with an existing GVar. We can't
808 // allow redefinition of GVars whose linking indicates that their name
809 // must stay the same. Issue the error.
810 GenerateError("Redefinition of global variable named '" + Name +
811 "' of type '" + Ty->getDescription() + "'");
816 // Otherwise there is no existing GV to use, create one now.
818 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
819 CurModule.CurrentModule, IsThreadLocal, AddressSpace);
820 GV->setVisibility(Visibility);
821 InsertValue(GV, CurModule.Values);
825 // setTypeName - Set the specified type to the name given. The name may be
826 // null potentially, in which case this is a noop. The string passed in is
827 // assumed to be a malloc'd string buffer, and is freed by this function.
829 // This function returns true if the type has already been defined, but is
830 // allowed to be redefined in the specified context. If the name is a new name
831 // for the type plane, it is inserted and false is returned.
832 static bool setTypeName(const Type *T, std::string *NameStr) {
833 assert(!inFunctionScope() && "Can't give types function-local names!");
834 if (NameStr == 0) return false;
836 std::string Name(*NameStr); // Copy string
837 delete NameStr; // Free old string
839 // We don't allow assigning names to void type
840 if (T == Type::VoidTy) {
841 GenerateError("Can't assign name '" + Name + "' to the void type");
845 // Set the type name, checking for conflicts as we do so.
846 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
848 if (AlreadyExists) { // Inserting a name that is already defined???
849 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
850 assert(Existing && "Conflict but no matching type?!");
852 // There is only one case where this is allowed: when we are refining an
853 // opaque type. In this case, Existing will be an opaque type.
854 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
855 // We ARE replacing an opaque type!
856 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
860 // Otherwise, this is an attempt to redefine a type. That's okay if
861 // the redefinition is identical to the original. This will be so if
862 // Existing and T point to the same Type object. In this one case we
863 // allow the equivalent redefinition.
864 if (Existing == T) return true; // Yes, it's equal.
866 // Any other kind of (non-equivalent) redefinition is an error.
867 GenerateError("Redefinition of type named '" + Name + "' of type '" +
868 T->getDescription() + "'");
874 //===----------------------------------------------------------------------===//
875 // Code for handling upreferences in type names...
878 // TypeContains - Returns true if Ty directly contains E in it.
880 static bool TypeContains(const Type *Ty, const Type *E) {
881 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
882 E) != Ty->subtype_end();
887 // NestingLevel - The number of nesting levels that need to be popped before
888 // this type is resolved.
889 unsigned NestingLevel;
891 // LastContainedTy - This is the type at the current binding level for the
892 // type. Every time we reduce the nesting level, this gets updated.
893 const Type *LastContainedTy;
895 // UpRefTy - This is the actual opaque type that the upreference is
899 UpRefRecord(unsigned NL, OpaqueType *URTy)
900 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
904 // UpRefs - A list of the outstanding upreferences that need to be resolved.
905 static std::vector<UpRefRecord> UpRefs;
907 /// HandleUpRefs - Every time we finish a new layer of types, this function is
908 /// called. It loops through the UpRefs vector, which is a list of the
909 /// currently active types. For each type, if the up reference is contained in
910 /// the newly completed type, we decrement the level count. When the level
911 /// count reaches zero, the upreferenced type is the type that is passed in:
912 /// thus we can complete the cycle.
914 static PATypeHolder HandleUpRefs(const Type *ty) {
915 // If Ty isn't abstract, or if there are no up-references in it, then there is
916 // nothing to resolve here.
917 if (!ty->isAbstract() || UpRefs.empty()) return ty;
920 UR_OUT("Type '" << Ty->getDescription() <<
921 "' newly formed. Resolving upreferences.\n" <<
922 UpRefs.size() << " upreferences active!\n");
924 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
925 // to zero), we resolve them all together before we resolve them to Ty. At
926 // the end of the loop, if there is anything to resolve to Ty, it will be in
928 OpaqueType *TypeToResolve = 0;
930 for (unsigned i = 0; i != UpRefs.size(); ++i) {
931 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
932 << UpRefs[i].second->getDescription() << ") = "
933 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
934 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
935 // Decrement level of upreference
936 unsigned Level = --UpRefs[i].NestingLevel;
937 UpRefs[i].LastContainedTy = Ty;
938 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
939 if (Level == 0) { // Upreference should be resolved!
940 if (!TypeToResolve) {
941 TypeToResolve = UpRefs[i].UpRefTy;
943 UR_OUT(" * Resolving upreference for "
944 << UpRefs[i].second->getDescription() << "\n";
945 std::string OldName = UpRefs[i].UpRefTy->getDescription());
946 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
947 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
948 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
950 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
951 --i; // Do not skip the next element...
957 UR_OUT(" * Resolving upreference for "
958 << UpRefs[i].second->getDescription() << "\n";
959 std::string OldName = TypeToResolve->getDescription());
960 TypeToResolve->refineAbstractTypeTo(Ty);
966 //===----------------------------------------------------------------------===//
967 // RunVMAsmParser - Define an interface to this parser
968 //===----------------------------------------------------------------------===//
970 static Module* RunParser(Module * M);
972 Module *llvm::RunVMAsmParser(llvm::MemoryBuffer *MB) {
974 Module *M = RunParser(new Module(LLLgetFilename()));
982 llvm::Module *ModuleVal;
983 llvm::Function *FunctionVal;
984 llvm::BasicBlock *BasicBlockVal;
985 llvm::TerminatorInst *TermInstVal;
986 llvm::Instruction *InstVal;
987 llvm::Constant *ConstVal;
989 const llvm::Type *PrimType;
990 std::list<llvm::PATypeHolder> *TypeList;
991 llvm::PATypeHolder *TypeVal;
992 llvm::Value *ValueVal;
993 std::vector<llvm::Value*> *ValueList;
994 std::vector<unsigned> *ConstantList;
995 llvm::ArgListType *ArgList;
996 llvm::TypeWithAttrs TypeWithAttrs;
997 llvm::TypeWithAttrsList *TypeWithAttrsList;
998 llvm::ParamList *ParamList;
1000 // Represent the RHS of PHI node
1001 std::list<std::pair<llvm::Value*,
1002 llvm::BasicBlock*> > *PHIList;
1003 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
1004 std::vector<llvm::Constant*> *ConstVector;
1006 llvm::GlobalValue::LinkageTypes Linkage;
1007 llvm::GlobalValue::VisibilityTypes Visibility;
1008 llvm::Attributes Attributes;
1009 llvm::APInt *APIntVal;
1014 llvm::APFloat *FPVal;
1017 std::string *StrVal; // This memory must be deleted
1018 llvm::ValID ValIDVal;
1020 llvm::Instruction::BinaryOps BinaryOpVal;
1021 llvm::Instruction::TermOps TermOpVal;
1022 llvm::Instruction::MemoryOps MemOpVal;
1023 llvm::Instruction::CastOps CastOpVal;
1024 llvm::Instruction::OtherOps OtherOpVal;
1025 llvm::ICmpInst::Predicate IPredicate;
1026 llvm::FCmpInst::Predicate FPredicate;
1029 %type <ModuleVal> Module
1030 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1031 %type <BasicBlockVal> BasicBlock InstructionList
1032 %type <TermInstVal> BBTerminatorInst
1033 %type <InstVal> Inst InstVal MemoryInst
1034 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1035 %type <ConstVector> ConstVector
1036 %type <ArgList> ArgList ArgListH
1037 %type <PHIList> PHIList
1038 %type <ParamList> ParamList // For call param lists & GEP indices
1039 %type <ValueList> IndexList // For GEP indices
1040 %type <ConstantList> ConstantIndexList // For insertvalue/extractvalue indices
1041 %type <TypeList> TypeListI
1042 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1043 %type <TypeWithAttrs> ArgType
1044 %type <JumpTable> JumpTable
1045 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1046 %type <BoolVal> ThreadLocal // 'thread_local' or not
1047 %type <BoolVal> OptVolatile // 'volatile' or not
1048 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1049 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1050 %type <Linkage> GVInternalLinkage GVExternalLinkage
1051 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1052 %type <Linkage> AliasLinkage
1053 %type <Visibility> GVVisibilityStyle
1055 // ValueRef - Unresolved reference to a definition or BB
1056 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1057 %type <ValueVal> ResolvedVal // <type> <valref> pair
1058 %type <ValueList> ReturnedVal
1059 // Tokens and types for handling constant integer values
1061 // ESINT64VAL - A negative number within long long range
1062 %token <SInt64Val> ESINT64VAL
1064 // EUINT64VAL - A positive number within uns. long long range
1065 %token <UInt64Val> EUINT64VAL
1067 // ESAPINTVAL - A negative number with arbitrary precision
1068 %token <APIntVal> ESAPINTVAL
1070 // EUAPINTVAL - A positive number with arbitrary precision
1071 %token <APIntVal> EUAPINTVAL
1073 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1074 %token <FPVal> FPVAL // Float or Double constant
1076 // Built in types...
1077 %type <TypeVal> Types ResultTypes
1078 %type <PrimType> PrimType // Classifications
1079 %token <PrimType> VOID INTTYPE
1080 %token <PrimType> FLOAT DOUBLE X86_FP80 FP128 PPC_FP128 LABEL
1084 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR
1085 %token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT
1086 %type <StrVal> LocalName OptLocalName OptLocalAssign
1087 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1088 %type <StrVal> OptSection SectionString OptGC
1090 %type <UIntVal> OptAlign OptCAlign OptAddrSpace
1092 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1093 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1094 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1095 %token DLLIMPORT DLLEXPORT EXTERN_WEAK COMMON
1096 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN ADDRSPACE
1097 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1098 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1100 %type <UIntVal> OptCallingConv LocalNumber
1101 %type <Attributes> OptAttributes Attribute
1102 %type <Attributes> OptFuncAttrs FuncAttr
1103 %type <Attributes> OptRetAttrs RetAttr
1105 // Basic Block Terminating Operators
1106 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1109 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1110 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1111 %token <BinaryOpVal> SHL LSHR ASHR
1113 %token <OtherOpVal> ICMP FCMP VICMP VFCMP
1114 %type <IPredicate> IPredicates
1115 %type <FPredicate> FPredicates
1116 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1117 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1119 // Memory Instructions
1120 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1123 %type <CastOpVal> CastOps
1124 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1125 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1128 %token <OtherOpVal> PHI_TOK SELECT VAARG
1129 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1130 %token <OtherOpVal> GETRESULT
1131 %token <OtherOpVal> EXTRACTVALUE INSERTVALUE
1133 // Function Attributes
1134 %token SIGNEXT ZEROEXT NORETURN INREG SRET NOUNWIND NOALIAS BYVAL NEST
1135 %token READNONE READONLY GC OPTSIZE NOINLINE ALWAYSINLINE
1137 // Visibility Styles
1138 %token DEFAULT HIDDEN PROTECTED
1144 // Operations that are notably excluded from this list include:
1145 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1147 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1148 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1149 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1150 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1153 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1154 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1155 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1156 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1157 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1161 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1162 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1163 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1164 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1165 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1166 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1167 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1168 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1169 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1172 LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ;
1173 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1175 OptAddrSpace : ADDRSPACE '(' EUINT64VAL ')' { $$=$3; }
1176 | /*empty*/ { $$=0; };
1178 /// OptLocalAssign - Value producing statements have an optional assignment
1180 OptLocalAssign : LocalName '=' {
1189 LocalNumber : LOCALVAL_ID '=' {
1195 GlobalName : GLOBALVAR | ATSTRINGCONSTANT ;
1197 OptGlobalAssign : GlobalAssign
1203 GlobalAssign : GlobalName '=' {
1209 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1210 | WEAK { $$ = GlobalValue::WeakLinkage; }
1211 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1212 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1213 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1214 | COMMON { $$ = GlobalValue::CommonLinkage; }
1218 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1219 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1220 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1224 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1225 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1226 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1227 | PROTECTED { $$ = GlobalValue::ProtectedVisibility; }
1230 FunctionDeclareLinkage
1231 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1232 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1233 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1236 FunctionDefineLinkage
1237 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1238 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1239 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1240 | WEAK { $$ = GlobalValue::WeakLinkage; }
1241 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1245 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1246 | WEAK { $$ = GlobalValue::WeakLinkage; }
1247 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1250 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1251 CCC_TOK { $$ = CallingConv::C; } |
1252 FASTCC_TOK { $$ = CallingConv::Fast; } |
1253 COLDCC_TOK { $$ = CallingConv::Cold; } |
1254 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1255 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1257 if ((unsigned)$2 != $2)
1258 GEN_ERROR("Calling conv too large");
1263 Attribute : ZEROEXT { $$ = Attribute::ZExt; }
1264 | ZEXT { $$ = Attribute::ZExt; }
1265 | SIGNEXT { $$ = Attribute::SExt; }
1266 | SEXT { $$ = Attribute::SExt; }
1267 | INREG { $$ = Attribute::InReg; }
1268 | SRET { $$ = Attribute::StructRet; }
1269 | NOALIAS { $$ = Attribute::NoAlias; }
1270 | BYVAL { $$ = Attribute::ByVal; }
1271 | NEST { $$ = Attribute::Nest; }
1272 | ALIGN EUINT64VAL { $$ =
1273 Attribute::constructAlignmentFromInt($2); }
1276 OptAttributes : /* empty */ { $$ = Attribute::None; }
1277 | OptAttributes Attribute {
1282 RetAttr : INREG { $$ = Attribute::InReg; }
1283 | ZEROEXT { $$ = Attribute::ZExt; }
1284 | SIGNEXT { $$ = Attribute::SExt; }
1287 OptRetAttrs : /* empty */ { $$ = Attribute::None; }
1288 | OptRetAttrs RetAttr {
1294 FuncAttr : NORETURN { $$ = Attribute::NoReturn; }
1295 | NOUNWIND { $$ = Attribute::NoUnwind; }
1296 | INREG { $$ = Attribute::InReg; }
1297 | ZEROEXT { $$ = Attribute::ZExt; }
1298 | SIGNEXT { $$ = Attribute::SExt; }
1299 | READNONE { $$ = Attribute::ReadNone; }
1300 | READONLY { $$ = Attribute::ReadOnly; }
1301 | NOINLINE { $$ = Attribute::NoInline; }
1302 | ALWAYSINLINE { $$ = Attribute::AlwaysInline; }
1303 | OPTSIZE { $$ = Attribute::OptimizeForSize; }
1306 OptFuncAttrs : /* empty */ { $$ = Attribute::None; }
1307 | OptFuncAttrs FuncAttr {
1313 OptGC : /* empty */ { $$ = 0; }
1314 | GC STRINGCONSTANT {
1319 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1320 // a comma before it.
1321 OptAlign : /*empty*/ { $$ = 0; } |
1324 if ($$ != 0 && !isPowerOf2_32($$))
1325 GEN_ERROR("Alignment must be a power of two");
1328 OptCAlign : /*empty*/ { $$ = 0; } |
1329 ',' ALIGN EUINT64VAL {
1331 if ($$ != 0 && !isPowerOf2_32($$))
1332 GEN_ERROR("Alignment must be a power of two");
1338 SectionString : SECTION STRINGCONSTANT {
1339 for (unsigned i = 0, e = $2->length(); i != e; ++i)
1340 if ((*$2)[i] == '"' || (*$2)[i] == '\\')
1341 GEN_ERROR("Invalid character in section name");
1346 OptSection : /*empty*/ { $$ = 0; } |
1347 SectionString { $$ = $1; };
1349 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1350 // is set to be the global we are processing.
1352 GlobalVarAttributes : /* empty */ {} |
1353 ',' GlobalVarAttribute GlobalVarAttributes {};
1354 GlobalVarAttribute : SectionString {
1355 CurGV->setSection(*$1);
1359 | ALIGN EUINT64VAL {
1360 if ($2 != 0 && !isPowerOf2_32($2))
1361 GEN_ERROR("Alignment must be a power of two");
1362 CurGV->setAlignment($2);
1366 //===----------------------------------------------------------------------===//
1367 // Types includes all predefined types... except void, because it can only be
1368 // used in specific contexts (function returning void for example).
1370 // Derived types are added later...
1372 PrimType : INTTYPE | FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80 | LABEL ;
1376 $$ = new PATypeHolder(OpaqueType::get());
1380 $$ = new PATypeHolder($1);
1383 | Types OptAddrSpace '*' { // Pointer type?
1384 if (*$1 == Type::LabelTy)
1385 GEN_ERROR("Cannot form a pointer to a basic block");
1386 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1, $2)));
1390 | SymbolicValueRef { // Named types are also simple types...
1391 const Type* tmp = getTypeVal($1);
1393 $$ = new PATypeHolder(tmp);
1395 | '\\' EUINT64VAL { // Type UpReference
1396 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1397 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1398 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1399 $$ = new PATypeHolder(OT);
1400 UR_OUT("New Upreference!\n");
1403 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1404 // Allow but ignore attributes on function types; this permits auto-upgrade.
1405 // FIXME: remove in LLVM 3.0.
1406 const Type *RetTy = *$1;
1407 if (!FunctionType::isValidReturnType(RetTy))
1408 GEN_ERROR("Invalid result type for LLVM function");
1410 std::vector<const Type*> Params;
1411 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1412 for (; I != E; ++I ) {
1413 const Type *Ty = I->Ty->get();
1414 Params.push_back(Ty);
1417 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1418 if (isVarArg) Params.pop_back();
1420 for (unsigned i = 0; i != Params.size(); ++i)
1421 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1422 GEN_ERROR("Function arguments must be value types!");
1426 FunctionType *FT = FunctionType::get(RetTy, Params, isVarArg);
1427 delete $1; // Delete the return type handle
1428 $$ = new PATypeHolder(HandleUpRefs(FT));
1430 // Delete the argument list
1431 for (I = $3->begin() ; I != E; ++I ) {
1438 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1439 // Allow but ignore attributes on function types; this permits auto-upgrade.
1440 // FIXME: remove in LLVM 3.0.
1441 std::vector<const Type*> Params;
1442 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1443 for ( ; I != E; ++I ) {
1444 const Type* Ty = I->Ty->get();
1445 Params.push_back(Ty);
1448 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1449 if (isVarArg) Params.pop_back();
1451 for (unsigned i = 0; i != Params.size(); ++i)
1452 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1453 GEN_ERROR("Function arguments must be value types!");
1457 FunctionType *FT = FunctionType::get($1, Params, isVarArg);
1458 $$ = new PATypeHolder(HandleUpRefs(FT));
1460 // Delete the argument list
1461 for (I = $3->begin() ; I != E; ++I ) {
1469 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1470 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, $2)));
1474 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1475 const llvm::Type* ElemTy = $4->get();
1476 if ((unsigned)$2 != $2)
1477 GEN_ERROR("Unsigned result not equal to signed result");
1478 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1479 GEN_ERROR("Element type of a VectorType must be primitive");
1480 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1484 | '{' TypeListI '}' { // Structure type?
1485 std::vector<const Type*> Elements;
1486 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1487 E = $2->end(); I != E; ++I)
1488 Elements.push_back(*I);
1490 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1494 | '{' '}' { // Empty structure type?
1495 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1498 | '<' '{' TypeListI '}' '>' {
1499 std::vector<const Type*> Elements;
1500 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1501 E = $3->end(); I != E; ++I)
1502 Elements.push_back(*I);
1504 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1508 | '<' '{' '}' '>' { // Empty structure type?
1509 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1515 : Types OptAttributes {
1516 // Allow but ignore attributes on function types; this permits auto-upgrade.
1517 // FIXME: remove in LLVM 3.0.
1519 $$.Attrs = Attribute::None;
1525 if (!UpRefs.empty())
1526 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1527 if (!(*$1)->isFirstClassType() && !isa<StructType>($1->get()))
1528 GEN_ERROR("LLVM functions cannot return aggregate types");
1532 $$ = new PATypeHolder(Type::VoidTy);
1536 ArgTypeList : ArgType {
1537 $$ = new TypeWithAttrsList();
1541 | ArgTypeList ',' ArgType {
1542 ($$=$1)->push_back($3);
1549 | ArgTypeList ',' DOTDOTDOT {
1551 TypeWithAttrs TWA; TWA.Attrs = Attribute::None;
1552 TWA.Ty = new PATypeHolder(Type::VoidTy);
1557 $$ = new TypeWithAttrsList;
1558 TypeWithAttrs TWA; TWA.Attrs = Attribute::None;
1559 TWA.Ty = new PATypeHolder(Type::VoidTy);
1564 $$ = new TypeWithAttrsList();
1568 // TypeList - Used for struct declarations and as a basis for function type
1569 // declaration type lists
1572 $$ = new std::list<PATypeHolder>();
1577 | TypeListI ',' Types {
1578 ($$=$1)->push_back(*$3);
1583 // ConstVal - The various declarations that go into the constant pool. This
1584 // production is used ONLY to represent constants that show up AFTER a 'const',
1585 // 'constant' or 'global' token at global scope. Constants that can be inlined
1586 // into other expressions (such as integers and constexprs) are handled by the
1587 // ResolvedVal, ValueRef and ConstValueRef productions.
1589 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1590 if (!UpRefs.empty())
1591 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1592 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1594 GEN_ERROR("Cannot make array constant with type: '" +
1595 (*$1)->getDescription() + "'");
1596 const Type *ETy = ATy->getElementType();
1597 uint64_t NumElements = ATy->getNumElements();
1599 // Verify that we have the correct size...
1600 if (NumElements != uint64_t(-1) && NumElements != $3->size())
1601 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1602 utostr($3->size()) + " arguments, but has size of " +
1603 utostr(NumElements) + "");
1605 // Verify all elements are correct type!
1606 for (unsigned i = 0; i < $3->size(); i++) {
1607 if (ETy != (*$3)[i]->getType())
1608 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1609 ETy->getDescription() +"' as required!\nIt is of type '"+
1610 (*$3)[i]->getType()->getDescription() + "'.");
1613 $$ = ConstantArray::get(ATy, *$3);
1614 delete $1; delete $3;
1618 if (!UpRefs.empty())
1619 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1620 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1622 GEN_ERROR("Cannot make array constant with type: '" +
1623 (*$1)->getDescription() + "'");
1625 uint64_t NumElements = ATy->getNumElements();
1626 if (NumElements != uint64_t(-1) && NumElements != 0)
1627 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1628 " arguments, but has size of " + utostr(NumElements) +"");
1629 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1633 | Types 'c' STRINGCONSTANT {
1634 if (!UpRefs.empty())
1635 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1636 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1638 GEN_ERROR("Cannot make array constant with type: '" +
1639 (*$1)->getDescription() + "'");
1641 uint64_t NumElements = ATy->getNumElements();
1642 const Type *ETy = ATy->getElementType();
1643 if (NumElements != uint64_t(-1) && NumElements != $3->length())
1644 GEN_ERROR("Can't build string constant of size " +
1645 utostr($3->length()) +
1646 " when array has size " + utostr(NumElements) + "");
1647 std::vector<Constant*> Vals;
1648 if (ETy == Type::Int8Ty) {
1649 for (uint64_t i = 0; i < $3->length(); ++i)
1650 Vals.push_back(ConstantInt::get(ETy, (*$3)[i]));
1653 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1656 $$ = ConstantArray::get(ATy, Vals);
1660 | Types '<' ConstVector '>' { // Nonempty unsized arr
1661 if (!UpRefs.empty())
1662 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1663 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1665 GEN_ERROR("Cannot make packed constant with type: '" +
1666 (*$1)->getDescription() + "'");
1667 const Type *ETy = PTy->getElementType();
1668 unsigned NumElements = PTy->getNumElements();
1670 // Verify that we have the correct size...
1671 if (NumElements != unsigned(-1) && NumElements != (unsigned)$3->size())
1672 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1673 utostr($3->size()) + " arguments, but has size of " +
1674 utostr(NumElements) + "");
1676 // Verify all elements are correct type!
1677 for (unsigned i = 0; i < $3->size(); i++) {
1678 if (ETy != (*$3)[i]->getType())
1679 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1680 ETy->getDescription() +"' as required!\nIt is of type '"+
1681 (*$3)[i]->getType()->getDescription() + "'.");
1684 $$ = ConstantVector::get(PTy, *$3);
1685 delete $1; delete $3;
1688 | Types '{' ConstVector '}' {
1689 const StructType *STy = dyn_cast<StructType>($1->get());
1691 GEN_ERROR("Cannot make struct constant with type: '" +
1692 (*$1)->getDescription() + "'");
1694 if ($3->size() != STy->getNumContainedTypes())
1695 GEN_ERROR("Illegal number of initializers for structure type");
1697 // Check to ensure that constants are compatible with the type initializer!
1698 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1699 if ((*$3)[i]->getType() != STy->getElementType(i))
1700 GEN_ERROR("Expected type '" +
1701 STy->getElementType(i)->getDescription() +
1702 "' for element #" + utostr(i) +
1703 " of structure initializer");
1705 // Check to ensure that Type is not packed
1706 if (STy->isPacked())
1707 GEN_ERROR("Unpacked Initializer to vector type '" +
1708 STy->getDescription() + "'");
1710 $$ = ConstantStruct::get(STy, *$3);
1711 delete $1; delete $3;
1715 if (!UpRefs.empty())
1716 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1717 const StructType *STy = dyn_cast<StructType>($1->get());
1719 GEN_ERROR("Cannot make struct constant with type: '" +
1720 (*$1)->getDescription() + "'");
1722 if (STy->getNumContainedTypes() != 0)
1723 GEN_ERROR("Illegal number of initializers for structure type");
1725 // Check to ensure that Type is not packed
1726 if (STy->isPacked())
1727 GEN_ERROR("Unpacked Initializer to vector type '" +
1728 STy->getDescription() + "'");
1730 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1734 | Types '<' '{' ConstVector '}' '>' {
1735 const StructType *STy = dyn_cast<StructType>($1->get());
1737 GEN_ERROR("Cannot make struct constant with type: '" +
1738 (*$1)->getDescription() + "'");
1740 if ($4->size() != STy->getNumContainedTypes())
1741 GEN_ERROR("Illegal number of initializers for structure type");
1743 // Check to ensure that constants are compatible with the type initializer!
1744 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1745 if ((*$4)[i]->getType() != STy->getElementType(i))
1746 GEN_ERROR("Expected type '" +
1747 STy->getElementType(i)->getDescription() +
1748 "' for element #" + utostr(i) +
1749 " of structure initializer");
1751 // Check to ensure that Type is packed
1752 if (!STy->isPacked())
1753 GEN_ERROR("Vector initializer to non-vector type '" +
1754 STy->getDescription() + "'");
1756 $$ = ConstantStruct::get(STy, *$4);
1757 delete $1; delete $4;
1760 | Types '<' '{' '}' '>' {
1761 if (!UpRefs.empty())
1762 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1763 const StructType *STy = dyn_cast<StructType>($1->get());
1765 GEN_ERROR("Cannot make struct constant with type: '" +
1766 (*$1)->getDescription() + "'");
1768 if (STy->getNumContainedTypes() != 0)
1769 GEN_ERROR("Illegal number of initializers for structure type");
1771 // Check to ensure that Type is packed
1772 if (!STy->isPacked())
1773 GEN_ERROR("Vector initializer to non-vector type '" +
1774 STy->getDescription() + "'");
1776 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1781 if (!UpRefs.empty())
1782 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1783 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1785 GEN_ERROR("Cannot make null pointer constant with type: '" +
1786 (*$1)->getDescription() + "'");
1788 $$ = ConstantPointerNull::get(PTy);
1793 if (!UpRefs.empty())
1794 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1795 $$ = UndefValue::get($1->get());
1799 | Types SymbolicValueRef {
1800 if (!UpRefs.empty())
1801 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1802 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1804 GEN_ERROR("Global const reference must be a pointer type " + (*$1)->getDescription());
1806 // ConstExprs can exist in the body of a function, thus creating
1807 // GlobalValues whenever they refer to a variable. Because we are in
1808 // the context of a function, getExistingVal will search the functions
1809 // symbol table instead of the module symbol table for the global symbol,
1810 // which throws things all off. To get around this, we just tell
1811 // getExistingVal that we are at global scope here.
1813 Function *SavedCurFn = CurFun.CurrentFunction;
1814 CurFun.CurrentFunction = 0;
1816 Value *V = getExistingVal(Ty, $2);
1819 CurFun.CurrentFunction = SavedCurFn;
1821 // If this is an initializer for a constant pointer, which is referencing a
1822 // (currently) undefined variable, create a stub now that shall be replaced
1823 // in the future with the right type of variable.
1826 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1827 const PointerType *PT = cast<PointerType>(Ty);
1829 // First check to see if the forward references value is already created!
1830 PerModuleInfo::GlobalRefsType::iterator I =
1831 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1833 if (I != CurModule.GlobalRefs.end()) {
1834 V = I->second; // Placeholder already exists, use it...
1838 if ($2.Type == ValID::GlobalName)
1839 Name = $2.getName();
1840 else if ($2.Type != ValID::GlobalID)
1841 GEN_ERROR("Invalid reference to global");
1843 // Create the forward referenced global.
1845 if (const FunctionType *FTy =
1846 dyn_cast<FunctionType>(PT->getElementType())) {
1847 GV = Function::Create(FTy, GlobalValue::ExternalWeakLinkage, Name,
1848 CurModule.CurrentModule);
1850 GV = new GlobalVariable(PT->getElementType(), false,
1851 GlobalValue::ExternalWeakLinkage, 0,
1852 Name, CurModule.CurrentModule);
1855 // Keep track of the fact that we have a forward ref to recycle it
1856 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1861 $$ = cast<GlobalValue>(V);
1862 delete $1; // Free the type handle
1866 if (!UpRefs.empty())
1867 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1868 if ($1->get() != $2->getType())
1869 GEN_ERROR("Mismatched types for constant expression: " +
1870 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1875 | Types ZEROINITIALIZER {
1876 if (!UpRefs.empty())
1877 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1878 const Type *Ty = $1->get();
1879 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1880 GEN_ERROR("Cannot create a null initialized value of this type");
1881 $$ = Constant::getNullValue(Ty);
1885 | Types ESINT64VAL { // integral constants
1886 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1887 if (!ConstantInt::isValueValidForType(IT, $2))
1888 GEN_ERROR("Constant value doesn't fit in type");
1889 $$ = ConstantInt::get(IT, $2, true);
1891 GEN_ERROR("integer constant must have integer type");
1896 | Types ESAPINTVAL { // arbitrary precision integer constants
1897 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1898 if ($2->getBitWidth() > IT->getBitWidth())
1899 GEN_ERROR("Constant value does not fit in type");
1900 $2->sextOrTrunc(IT->getBitWidth());
1901 $$ = ConstantInt::get(*$2);
1903 GEN_ERROR("integer constant must have integer type");
1909 | Types EUINT64VAL { // integral constants
1910 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1911 if (!ConstantInt::isValueValidForType(IT, $2))
1912 GEN_ERROR("Constant value doesn't fit in type");
1913 $$ = ConstantInt::get(IT, $2, false);
1915 GEN_ERROR("integer constant must have integer type");
1920 | Types EUAPINTVAL { // arbitrary precision integer constants
1921 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1922 if ($2->getBitWidth() > IT->getBitWidth())
1923 GEN_ERROR("Constant value does not fit in type");
1924 $2->zextOrTrunc(IT->getBitWidth());
1925 $$ = ConstantInt::get(*$2);
1927 GEN_ERROR("integer constant must have integer type");
1934 | Types TRUETOK { // Boolean constants
1935 if ($1->get() != Type::Int1Ty)
1936 GEN_ERROR("Constant true must have type i1");
1937 $$ = ConstantInt::getTrue();
1941 | Types FALSETOK { // Boolean constants
1942 if ($1->get() != Type::Int1Ty)
1943 GEN_ERROR("Constant false must have type i1");
1944 $$ = ConstantInt::getFalse();
1948 | Types FPVAL { // Floating point constants
1949 if (!ConstantFP::isValueValidForType($1->get(), *$2))
1950 GEN_ERROR("Floating point constant invalid for type");
1952 // Lexer has no type info, so builds all float and double FP constants
1953 // as double. Fix this here. Long double is done right.
1954 if (&$2->getSemantics()==&APFloat::IEEEdouble && $1->get()==Type::FloatTy) {
1956 $2->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven,
1959 $$ = ConstantFP::get(*$2);
1966 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1967 if (!UpRefs.empty())
1968 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1970 const Type *DestTy = $5->get();
1971 if (!CastInst::castIsValid($1, $3, DestTy))
1972 GEN_ERROR("invalid cast opcode for cast from '" +
1973 Val->getType()->getDescription() + "' to '" +
1974 DestTy->getDescription() + "'");
1975 $$ = ConstantExpr::getCast($1, $3, DestTy);
1978 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1979 if (!isa<PointerType>($3->getType()))
1980 GEN_ERROR("GetElementPtr requires a pointer operand");
1983 GetElementPtrInst::getIndexedType($3->getType(), $4->begin(), $4->end());
1985 GEN_ERROR("Index list invalid for constant getelementptr");
1987 SmallVector<Constant*, 8> IdxVec;
1988 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1989 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1990 IdxVec.push_back(C);
1992 GEN_ERROR("Indices to constant getelementptr must be constants");
1996 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1999 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2000 if ($3->getType() != Type::Int1Ty)
2001 GEN_ERROR("Select condition must be of boolean type");
2002 if ($5->getType() != $7->getType())
2003 GEN_ERROR("Select operand types must match");
2004 $$ = ConstantExpr::getSelect($3, $5, $7);
2007 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
2008 if ($3->getType() != $5->getType())
2009 GEN_ERROR("Binary operator types must match");
2011 $$ = ConstantExpr::get($1, $3, $5);
2013 | LogicalOps '(' ConstVal ',' ConstVal ')' {
2014 if ($3->getType() != $5->getType())
2015 GEN_ERROR("Logical operator types must match");
2016 if (!$3->getType()->isInteger()) {
2017 if (!isa<VectorType>($3->getType()) ||
2018 !cast<VectorType>($3->getType())->getElementType()->isInteger())
2019 GEN_ERROR("Logical operator requires integral operands");
2021 $$ = ConstantExpr::get($1, $3, $5);
2024 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2025 if ($4->getType() != $6->getType())
2026 GEN_ERROR("icmp operand types must match");
2027 $$ = ConstantExpr::getICmp($2, $4, $6);
2029 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2030 if ($4->getType() != $6->getType())
2031 GEN_ERROR("fcmp operand types must match");
2032 $$ = ConstantExpr::getFCmp($2, $4, $6);
2034 | VICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2035 if ($4->getType() != $6->getType())
2036 GEN_ERROR("vicmp operand types must match");
2037 $$ = ConstantExpr::getVICmp($2, $4, $6);
2039 | VFCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2040 if ($4->getType() != $6->getType())
2041 GEN_ERROR("vfcmp operand types must match");
2042 $$ = ConstantExpr::getVFCmp($2, $4, $6);
2044 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
2045 if (!ExtractElementInst::isValidOperands($3, $5))
2046 GEN_ERROR("Invalid extractelement operands");
2047 $$ = ConstantExpr::getExtractElement($3, $5);
2050 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2051 if (!InsertElementInst::isValidOperands($3, $5, $7))
2052 GEN_ERROR("Invalid insertelement operands");
2053 $$ = ConstantExpr::getInsertElement($3, $5, $7);
2056 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2057 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
2058 GEN_ERROR("Invalid shufflevector operands");
2059 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
2062 | EXTRACTVALUE '(' ConstVal ConstantIndexList ')' {
2063 if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType()))
2064 GEN_ERROR("ExtractValue requires an aggregate operand");
2066 $$ = ConstantExpr::getExtractValue($3, &(*$4)[0], $4->size());
2070 | INSERTVALUE '(' ConstVal ',' ConstVal ConstantIndexList ')' {
2071 if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType()))
2072 GEN_ERROR("InsertValue requires an aggregate operand");
2074 $$ = ConstantExpr::getInsertValue($3, $5, &(*$6)[0], $6->size());
2080 // ConstVector - A list of comma separated constants.
2081 ConstVector : ConstVector ',' ConstVal {
2082 ($$ = $1)->push_back($3);
2086 $$ = new std::vector<Constant*>();
2092 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
2093 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
2096 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
2098 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
2099 AliaseeRef : ResultTypes SymbolicValueRef {
2100 const Type* VTy = $1->get();
2101 Value *V = getVal(VTy, $2);
2103 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
2105 GEN_ERROR("Aliases can be created only to global values");
2111 | BITCAST '(' AliaseeRef TO Types ')' {
2113 const Type *DestTy = $5->get();
2114 if (!CastInst::castIsValid($1, $3, DestTy))
2115 GEN_ERROR("invalid cast opcode for cast from '" +
2116 Val->getType()->getDescription() + "' to '" +
2117 DestTy->getDescription() + "'");
2119 $$ = ConstantExpr::getCast($1, $3, DestTy);
2124 //===----------------------------------------------------------------------===//
2125 // Rules to match Modules
2126 //===----------------------------------------------------------------------===//
2128 // Module rule: Capture the result of parsing the whole file into a result
2133 $$ = ParserResult = CurModule.CurrentModule;
2134 CurModule.ModuleDone();
2138 $$ = ParserResult = CurModule.CurrentModule;
2139 CurModule.ModuleDone();
2146 | DefinitionList Definition
2150 : DEFINE { CurFun.isDeclare = false; } Function {
2151 CurFun.FunctionDone();
2154 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2157 | MODULE ASM_TOK AsmBlock {
2160 | OptLocalAssign TYPE Types {
2161 if (!UpRefs.empty())
2162 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2163 // Eagerly resolve types. This is not an optimization, this is a
2164 // requirement that is due to the fact that we could have this:
2166 // %list = type { %list * }
2167 // %list = type { %list * } ; repeated type decl
2169 // If types are not resolved eagerly, then the two types will not be
2170 // determined to be the same type!
2172 ResolveTypeTo($1, *$3);
2174 if (!setTypeName(*$3, $1) && !$1) {
2176 // If this is a named type that is not a redefinition, add it to the slot
2178 CurModule.Types.push_back(*$3);
2184 | OptLocalAssign TYPE VOID {
2185 ResolveTypeTo($1, $3);
2187 if (!setTypeName($3, $1) && !$1) {
2189 // If this is a named type that is not a redefinition, add it to the slot
2191 CurModule.Types.push_back($3);
2195 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal
2197 /* "Externally Visible" Linkage */
2199 GEN_ERROR("Global value initializer is not a constant");
2200 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2201 $2, $4, $5->getType(), $5, $3, $6);
2203 } GlobalVarAttributes {
2206 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2207 ConstVal OptAddrSpace {
2209 GEN_ERROR("Global value initializer is not a constant");
2210 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4, $7);
2212 } GlobalVarAttributes {
2215 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2216 Types OptAddrSpace {
2217 if (!UpRefs.empty())
2218 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2219 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4, $7);
2222 } GlobalVarAttributes {
2226 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2233 GEN_ERROR("Alias name cannot be empty");
2235 Constant* Aliasee = $5;
2237 GEN_ERROR(std::string("Invalid aliasee for alias: ") + Name);
2239 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2240 CurModule.CurrentModule);
2241 GA->setVisibility($2);
2242 InsertValue(GA, CurModule.Values);
2245 // If there was a forward reference of this alias, resolve it now.
2249 ID = ValID::createGlobalName(Name);
2251 ID = ValID::createGlobalID(CurModule.Values.size()-1);
2253 if (GlobalValue *FWGV =
2254 CurModule.GetForwardRefForGlobal(GA->getType(), ID)) {
2255 // Replace uses of the fwdref with the actual alias.
2256 FWGV->replaceAllUsesWith(GA);
2257 if (GlobalVariable *GV = dyn_cast<GlobalVariable>(FWGV))
2258 GV->eraseFromParent();
2260 cast<Function>(FWGV)->eraseFromParent();
2266 | TARGET TargetDefinition {
2269 | DEPLIBS '=' LibrariesDefinition {
2275 AsmBlock : STRINGCONSTANT {
2276 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2277 if (AsmSoFar.empty())
2278 CurModule.CurrentModule->setModuleInlineAsm(*$1);
2280 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+*$1);
2285 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2286 CurModule.CurrentModule->setTargetTriple(*$3);
2289 | DATALAYOUT '=' STRINGCONSTANT {
2290 CurModule.CurrentModule->setDataLayout(*$3);
2294 LibrariesDefinition : '[' LibList ']';
2296 LibList : LibList ',' STRINGCONSTANT {
2297 CurModule.CurrentModule->addLibrary(*$3);
2302 CurModule.CurrentModule->addLibrary(*$1);
2306 | /* empty: end of list */ {
2311 //===----------------------------------------------------------------------===//
2312 // Rules to match Function Headers
2313 //===----------------------------------------------------------------------===//
2315 ArgListH : ArgListH ',' Types OptAttributes OptLocalName {
2316 if (!UpRefs.empty())
2317 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2318 if (!(*$3)->isFirstClassType())
2319 GEN_ERROR("Argument types must be first-class");
2320 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2325 | Types OptAttributes OptLocalName {
2326 if (!UpRefs.empty())
2327 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2328 if (!(*$1)->isFirstClassType())
2329 GEN_ERROR("Argument types must be first-class");
2330 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2331 $$ = new ArgListType;
2336 ArgList : ArgListH {
2340 | ArgListH ',' DOTDOTDOT {
2342 struct ArgListEntry E;
2343 E.Ty = new PATypeHolder(Type::VoidTy);
2345 E.Attrs = Attribute::None;
2350 $$ = new ArgListType;
2351 struct ArgListEntry E;
2352 E.Ty = new PATypeHolder(Type::VoidTy);
2354 E.Attrs = Attribute::None;
2363 FunctionHeaderH : OptCallingConv OptRetAttrs ResultTypes GlobalName '(' ArgList ')'
2364 OptFuncAttrs OptSection OptAlign OptGC {
2365 std::string FunctionName(*$4);
2366 delete $4; // Free strdup'd memory!
2368 // Check the function result for abstractness if this is a define. We should
2369 // have no abstract types at this point
2370 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($3))
2371 GEN_ERROR("Reference to abstract result: "+ $3->get()->getDescription());
2373 if (!FunctionType::isValidReturnType(*$3))
2374 GEN_ERROR("Invalid result type for LLVM function");
2376 std::vector<const Type*> ParamTypeList;
2377 SmallVector<AttributeWithIndex, 8> Attrs;
2378 //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
2380 Attributes RetAttrs = $2;
2381 if ($8 != Attribute::None) {
2382 if ($8 & Attribute::ZExt) {
2383 RetAttrs = RetAttrs | Attribute::ZExt;
2384 $8 = $8 ^ Attribute::ZExt;
2386 if ($8 & Attribute::SExt) {
2387 RetAttrs = RetAttrs | Attribute::SExt;
2388 $8 = $8 ^ Attribute::SExt;
2390 if ($8 & Attribute::InReg) {
2391 RetAttrs = RetAttrs | Attribute::InReg;
2392 $8 = $8 ^ Attribute::InReg;
2395 if (RetAttrs != Attribute::None)
2396 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
2397 if ($6) { // If there are arguments...
2399 for (ArgListType::iterator I = $6->begin(); I != $6->end(); ++I, ++index) {
2400 const Type* Ty = I->Ty->get();
2401 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2402 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2403 ParamTypeList.push_back(Ty);
2404 if (Ty != Type::VoidTy && I->Attrs != Attribute::None)
2405 Attrs.push_back(AttributeWithIndex::get(index, I->Attrs));
2408 if ($8 != Attribute::None)
2409 Attrs.push_back(AttributeWithIndex::get(~0, $8));
2411 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2412 if (isVarArg) ParamTypeList.pop_back();
2416 PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
2418 FunctionType *FT = FunctionType::get(*$3, ParamTypeList, isVarArg);
2419 const PointerType *PFT = PointerType::getUnqual(FT);
2423 if (!FunctionName.empty()) {
2424 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2426 ID = ValID::createGlobalID(CurModule.Values.size());
2430 // See if this function was forward referenced. If so, recycle the object.
2431 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2432 // Move the function to the end of the list, from whereever it was
2433 // previously inserted.
2434 Fn = cast<Function>(FWRef);
2435 assert(Fn->getAttributes().isEmpty() &&
2436 "Forward reference has parameter attributes!");
2437 CurModule.CurrentModule->getFunctionList().remove(Fn);
2438 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2439 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2440 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2441 if (Fn->getFunctionType() != FT ) {
2442 // The existing function doesn't have the same type. This is an overload
2444 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2445 } else if (Fn->getAttributes() != PAL) {
2446 // The existing function doesn't have the same parameter attributes.
2447 // This is an overload error.
2448 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2449 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2450 // Neither the existing or the current function is a declaration and they
2451 // have the same name and same type. Clearly this is a redefinition.
2452 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2453 } else if (Fn->isDeclaration()) {
2454 // Make sure to strip off any argument names so we can't get conflicts.
2455 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2459 } else { // Not already defined?
2460 Fn = Function::Create(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2461 CurModule.CurrentModule);
2462 InsertValue(Fn, CurModule.Values);
2466 CurFun.FunctionStart(Fn);
2468 if (CurFun.isDeclare) {
2469 // If we have declaration, always overwrite linkage. This will allow us to
2470 // correctly handle cases, when pointer to function is passed as argument to
2471 // another function.
2472 Fn->setLinkage(CurFun.Linkage);
2473 Fn->setVisibility(CurFun.Visibility);
2475 Fn->setCallingConv($1);
2476 Fn->setAttributes(PAL);
2477 Fn->setAlignment($10);
2479 Fn->setSection(*$9);
2483 Fn->setGC($11->c_str());
2487 // Add all of the arguments we parsed to the function...
2488 if ($6) { // Is null if empty...
2489 if (isVarArg) { // Nuke the last entry
2490 assert($6->back().Ty->get() == Type::VoidTy && $6->back().Name == 0 &&
2491 "Not a varargs marker!");
2492 delete $6->back().Ty;
2493 $6->pop_back(); // Delete the last entry
2495 Function::arg_iterator ArgIt = Fn->arg_begin();
2496 Function::arg_iterator ArgEnd = Fn->arg_end();
2498 for (ArgListType::iterator I = $6->begin();
2499 I != $6->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2500 delete I->Ty; // Delete the typeholder...
2501 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2507 delete $6; // We're now done with the argument list
2512 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2514 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2515 $$ = CurFun.CurrentFunction;
2517 // Make sure that we keep track of the linkage type even if there was a
2518 // previous "declare".
2520 $$->setVisibility($2);
2523 END : ENDTOK | '}'; // Allow end of '}' to end a function
2525 Function : BasicBlockList END {
2530 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2531 CurFun.CurrentFunction->setLinkage($1);
2532 CurFun.CurrentFunction->setVisibility($2);
2533 $$ = CurFun.CurrentFunction;
2534 CurFun.FunctionDone();
2538 //===----------------------------------------------------------------------===//
2539 // Rules to match Basic Blocks
2540 //===----------------------------------------------------------------------===//
2542 OptSideEffect : /* empty */ {
2551 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2552 $$ = ValID::create($1);
2556 $$ = ValID::create($1);
2559 | ESAPINTVAL { // arbitrary precision integer constants
2560 $$ = ValID::create(*$1, true);
2564 | EUAPINTVAL { // arbitrary precision integer constants
2565 $$ = ValID::create(*$1, false);
2569 | FPVAL { // Perhaps it's an FP constant?
2570 $$ = ValID::create($1);
2574 $$ = ValID::create(ConstantInt::getTrue());
2578 $$ = ValID::create(ConstantInt::getFalse());
2582 $$ = ValID::createNull();
2586 $$ = ValID::createUndef();
2589 | ZEROINITIALIZER { // A vector zero constant.
2590 $$ = ValID::createZeroInit();
2593 | '<' ConstVector '>' { // Nonempty unsized packed vector
2594 const Type *ETy = (*$2)[0]->getType();
2595 unsigned NumElements = $2->size();
2597 if (!ETy->isInteger() && !ETy->isFloatingPoint())
2598 GEN_ERROR("Invalid vector element type: " + ETy->getDescription());
2600 VectorType* pt = VectorType::get(ETy, NumElements);
2601 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt));
2603 // Verify all elements are correct type!
2604 for (unsigned i = 0; i < $2->size(); i++) {
2605 if (ETy != (*$2)[i]->getType())
2606 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2607 ETy->getDescription() +"' as required!\nIt is of type '" +
2608 (*$2)[i]->getType()->getDescription() + "'.");
2611 $$ = ValID::create(ConstantVector::get(pt, *$2));
2612 delete PTy; delete $2;
2615 | '[' ConstVector ']' { // Nonempty unsized arr
2616 const Type *ETy = (*$2)[0]->getType();
2617 uint64_t NumElements = $2->size();
2619 if (!ETy->isFirstClassType())
2620 GEN_ERROR("Invalid array element type: " + ETy->getDescription());
2622 ArrayType *ATy = ArrayType::get(ETy, NumElements);
2623 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(ATy));
2625 // Verify all elements are correct type!
2626 for (unsigned i = 0; i < $2->size(); i++) {
2627 if (ETy != (*$2)[i]->getType())
2628 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2629 ETy->getDescription() +"' as required!\nIt is of type '"+
2630 (*$2)[i]->getType()->getDescription() + "'.");
2633 $$ = ValID::create(ConstantArray::get(ATy, *$2));
2634 delete PTy; delete $2;
2638 // Use undef instead of an array because it's inconvenient to determine
2639 // the element type at this point, there being no elements to examine.
2640 $$ = ValID::createUndef();
2643 | 'c' STRINGCONSTANT {
2644 uint64_t NumElements = $2->length();
2645 const Type *ETy = Type::Int8Ty;
2647 ArrayType *ATy = ArrayType::get(ETy, NumElements);
2649 std::vector<Constant*> Vals;
2650 for (unsigned i = 0; i < $2->length(); ++i)
2651 Vals.push_back(ConstantInt::get(ETy, (*$2)[i]));
2653 $$ = ValID::create(ConstantArray::get(ATy, Vals));
2656 | '{' ConstVector '}' {
2657 std::vector<const Type*> Elements($2->size());
2658 for (unsigned i = 0, e = $2->size(); i != e; ++i)
2659 Elements[i] = (*$2)[i]->getType();
2661 const StructType *STy = StructType::get(Elements);
2662 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy));
2664 $$ = ValID::create(ConstantStruct::get(STy, *$2));
2665 delete PTy; delete $2;
2669 const StructType *STy = StructType::get(std::vector<const Type*>());
2670 $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>()));
2673 | '<' '{' ConstVector '}' '>' {
2674 std::vector<const Type*> Elements($3->size());
2675 for (unsigned i = 0, e = $3->size(); i != e; ++i)
2676 Elements[i] = (*$3)[i]->getType();
2678 const StructType *STy = StructType::get(Elements, /*isPacked=*/true);
2679 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy));
2681 $$ = ValID::create(ConstantStruct::get(STy, *$3));
2682 delete PTy; delete $3;
2686 const StructType *STy = StructType::get(std::vector<const Type*>(),
2688 $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>()));
2692 $$ = ValID::create($1);
2695 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2696 $$ = ValID::createInlineAsm(*$3, *$5, $2);
2702 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2705 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2706 $$ = ValID::createLocalID($1);
2710 $$ = ValID::createGlobalID($1);
2713 | LocalName { // Is it a named reference...?
2714 $$ = ValID::createLocalName(*$1);
2718 | GlobalName { // Is it a named reference...?
2719 $$ = ValID::createGlobalName(*$1);
2724 // ValueRef - A reference to a definition... either constant or symbolic
2725 ValueRef : SymbolicValueRef | ConstValueRef;
2728 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2729 // type immediately preceeds the value reference, and allows complex constant
2730 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2731 ResolvedVal : Types ValueRef {
2732 if (!UpRefs.empty())
2733 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2734 $$ = getVal(*$1, $2);
2740 ReturnedVal : ResolvedVal {
2741 $$ = new std::vector<Value *>();
2745 | ReturnedVal ',' ResolvedVal {
2746 ($$=$1)->push_back($3);
2750 BasicBlockList : BasicBlockList BasicBlock {
2754 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2760 // Basic blocks are terminated by branching instructions:
2761 // br, br/cc, switch, ret
2763 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2764 setValueName($3, $2);
2767 $1->getInstList().push_back($3);
2772 BasicBlock : InstructionList LocalNumber BBTerminatorInst {
2774 int ValNum = InsertValue($3);
2775 if (ValNum != (int)$2)
2776 GEN_ERROR("Result value number %" + utostr($2) +
2777 " is incorrect, expected %" + utostr((unsigned)ValNum));
2779 $1->getInstList().push_back($3);
2785 InstructionList : InstructionList Inst {
2786 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2787 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2788 if (CI2->getParent() == 0)
2789 $1->getInstList().push_back(CI2);
2790 $1->getInstList().push_back($2);
2794 | /* empty */ { // Empty space between instruction lists
2795 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2798 | LABELSTR { // Labelled (named) basic block
2799 $$ = defineBBVal(ValID::createLocalName(*$1));
2806 RET ReturnedVal { // Return with a result...
2807 ValueList &VL = *$2;
2808 assert(!VL.empty() && "Invalid ret operands!");
2809 const Type *ReturnType = CurFun.CurrentFunction->getReturnType();
2810 if (VL.size() > 1 ||
2811 (isa<StructType>(ReturnType) &&
2812 (VL.empty() || VL[0]->getType() != ReturnType))) {
2813 Value *RV = UndefValue::get(ReturnType);
2814 for (unsigned i = 0, e = VL.size(); i != e; ++i) {
2815 Instruction *I = InsertValueInst::Create(RV, VL[i], i, "mrv");
2816 ($<BasicBlockVal>-1)->getInstList().push_back(I);
2819 $$ = ReturnInst::Create(RV);
2821 $$ = ReturnInst::Create(VL[0]);
2826 | RET VOID { // Return with no result...
2827 $$ = ReturnInst::Create();
2830 | BR LABEL ValueRef { // Unconditional Branch...
2831 BasicBlock* tmpBB = getBBVal($3);
2833 $$ = BranchInst::Create(tmpBB);
2834 } // Conditional Branch...
2835 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2836 if (cast<IntegerType>($2)->getBitWidth() != 1)
2837 GEN_ERROR("Branch condition must have type i1");
2838 BasicBlock* tmpBBA = getBBVal($6);
2840 BasicBlock* tmpBBB = getBBVal($9);
2842 Value* tmpVal = getVal(Type::Int1Ty, $3);
2844 $$ = BranchInst::Create(tmpBBA, tmpBBB, tmpVal);
2846 | SWITCH INTTYPE ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2847 Value* tmpVal = getVal($2, $3);
2849 BasicBlock* tmpBB = getBBVal($6);
2851 SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, $8->size());
2854 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2856 for (; I != E; ++I) {
2857 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2858 S->addCase(CI, I->second);
2860 GEN_ERROR("Switch case is constant, but not a simple integer");
2865 | SWITCH INTTYPE ValueRef ',' LABEL ValueRef '[' ']' {
2866 Value* tmpVal = getVal($2, $3);
2868 BasicBlock* tmpBB = getBBVal($6);
2870 SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, 0);
2874 | INVOKE OptCallingConv OptRetAttrs ResultTypes ValueRef '(' ParamList ')'
2875 OptFuncAttrs TO LABEL ValueRef UNWIND LABEL ValueRef {
2877 // Handle the short syntax
2878 const PointerType *PFTy = 0;
2879 const FunctionType *Ty = 0;
2880 if (!(PFTy = dyn_cast<PointerType>($4->get())) ||
2881 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2882 // Pull out the types of all of the arguments...
2883 std::vector<const Type*> ParamTypes;
2884 ParamList::iterator I = $7->begin(), E = $7->end();
2885 for (; I != E; ++I) {
2886 const Type *Ty = I->Val->getType();
2887 if (Ty == Type::VoidTy)
2888 GEN_ERROR("Short call syntax cannot be used with varargs");
2889 ParamTypes.push_back(Ty);
2892 if (!FunctionType::isValidReturnType(*$4))
2893 GEN_ERROR("Invalid result type for LLVM function");
2895 Ty = FunctionType::get($4->get(), ParamTypes, false);
2896 PFTy = PointerType::getUnqual(Ty);
2901 Value *V = getVal(PFTy, $5); // Get the function we're calling...
2903 BasicBlock *Normal = getBBVal($12);
2905 BasicBlock *Except = getBBVal($15);
2908 SmallVector<AttributeWithIndex, 8> Attrs;
2909 //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
2911 Attributes RetAttrs = $3;
2912 if ($9 != Attribute::None) {
2913 if ($9 & Attribute::ZExt) {
2914 RetAttrs = RetAttrs | Attribute::ZExt;
2915 $9 = $9 ^ Attribute::ZExt;
2917 if ($9 & Attribute::SExt) {
2918 RetAttrs = RetAttrs | Attribute::SExt;
2919 $9 = $9 ^ Attribute::SExt;
2921 if ($9 & Attribute::InReg) {
2922 RetAttrs = RetAttrs | Attribute::InReg;
2923 $9 = $9 ^ Attribute::InReg;
2926 if (RetAttrs != Attribute::None)
2927 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
2929 // Check the arguments
2931 if ($7->empty()) { // Has no arguments?
2932 // Make sure no arguments is a good thing!
2933 if (Ty->getNumParams() != 0)
2934 GEN_ERROR("No arguments passed to a function that "
2935 "expects arguments");
2936 } else { // Has arguments?
2937 // Loop through FunctionType's arguments and ensure they are specified
2939 FunctionType::param_iterator I = Ty->param_begin();
2940 FunctionType::param_iterator E = Ty->param_end();
2941 ParamList::iterator ArgI = $7->begin(), ArgE = $7->end();
2944 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
2945 if (ArgI->Val->getType() != *I)
2946 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2947 (*I)->getDescription() + "'");
2948 Args.push_back(ArgI->Val);
2949 if (ArgI->Attrs != Attribute::None)
2950 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
2953 if (Ty->isVarArg()) {
2955 for (; ArgI != ArgE; ++ArgI, ++index) {
2956 Args.push_back(ArgI->Val); // push the remaining varargs
2957 if (ArgI->Attrs != Attribute::None)
2958 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
2960 } else if (I != E || ArgI != ArgE)
2961 GEN_ERROR("Invalid number of parameters detected");
2963 if ($9 != Attribute::None)
2964 Attrs.push_back(AttributeWithIndex::get(~0, $9));
2967 PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
2969 // Create the InvokeInst
2970 InvokeInst *II = InvokeInst::Create(V, Normal, Except,
2971 Args.begin(), Args.end());
2972 II->setCallingConv($2);
2973 II->setAttributes(PAL);
2979 $$ = new UnwindInst();
2983 $$ = new UnreachableInst();
2989 JumpTable : JumpTable INTTYPE ConstValueRef ',' LABEL ValueRef {
2991 Constant *V = cast<Constant>(getExistingVal($2, $3));
2994 GEN_ERROR("May only switch on a constant pool value");
2996 BasicBlock* tmpBB = getBBVal($6);
2998 $$->push_back(std::make_pair(V, tmpBB));
3000 | INTTYPE ConstValueRef ',' LABEL ValueRef {
3001 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
3002 Constant *V = cast<Constant>(getExistingVal($1, $2));
3006 GEN_ERROR("May only switch on a constant pool value");
3008 BasicBlock* tmpBB = getBBVal($5);
3010 $$->push_back(std::make_pair(V, tmpBB));
3013 Inst : OptLocalAssign InstVal {
3014 // Is this definition named?? if so, assign the name...
3015 setValueName($2, $1);
3022 Inst : LocalNumber InstVal {
3024 int ValNum = InsertValue($2);
3026 if (ValNum != (int)$1)
3027 GEN_ERROR("Result value number %" + utostr($1) +
3028 " is incorrect, expected %" + utostr((unsigned)ValNum));
3035 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
3036 if (!UpRefs.empty())
3037 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
3038 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
3039 Value* tmpVal = getVal(*$1, $3);
3041 BasicBlock* tmpBB = getBBVal($5);
3043 $$->push_back(std::make_pair(tmpVal, tmpBB));
3046 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
3048 Value* tmpVal = getVal($1->front().first->getType(), $4);
3050 BasicBlock* tmpBB = getBBVal($6);
3052 $1->push_back(std::make_pair(tmpVal, tmpBB));
3056 ParamList : Types OptAttributes ValueRef OptAttributes {
3057 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3058 if (!UpRefs.empty())
3059 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
3060 // Used for call and invoke instructions
3061 $$ = new ParamList();
3062 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getVal($1->get(), $3);
3067 | LABEL OptAttributes ValueRef OptAttributes {
3068 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3069 // Labels are only valid in ASMs
3070 $$ = new ParamList();
3071 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getBBVal($3);
3075 | ParamList ',' Types OptAttributes ValueRef OptAttributes {
3076 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3077 if (!UpRefs.empty())
3078 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3080 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getVal($3->get(), $5);
3085 | ParamList ',' LABEL OptAttributes ValueRef OptAttributes {
3086 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3088 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getBBVal($5);
3092 | /*empty*/ { $$ = new ParamList(); };
3094 IndexList // Used for gep instructions and constant expressions
3095 : /*empty*/ { $$ = new std::vector<Value*>(); }
3096 | IndexList ',' ResolvedVal {
3103 ConstantIndexList // Used for insertvalue and extractvalue instructions
3105 $$ = new std::vector<unsigned>();
3106 if ((unsigned)$2 != $2)
3107 GEN_ERROR("Index " + utostr($2) + " is not valid for insertvalue or extractvalue.");
3110 | ConstantIndexList ',' EUINT64VAL {
3112 if ((unsigned)$3 != $3)
3113 GEN_ERROR("Index " + utostr($3) + " is not valid for insertvalue or extractvalue.");
3119 OptTailCall : TAIL CALL {
3128 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
3129 if (!UpRefs.empty())
3130 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3131 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
3132 !isa<VectorType>((*$2).get()))
3134 "Arithmetic operator requires integer, FP, or packed operands");
3135 Value* val1 = getVal(*$2, $3);
3137 Value* val2 = getVal(*$2, $5);
3139 $$ = BinaryOperator::Create($1, val1, val2);
3141 GEN_ERROR("binary operator returned null");
3144 | LogicalOps Types ValueRef ',' ValueRef {
3145 if (!UpRefs.empty())
3146 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3147 if (!(*$2)->isInteger()) {
3148 if (!isa<VectorType>($2->get()) ||
3149 !cast<VectorType>($2->get())->getElementType()->isInteger())
3150 GEN_ERROR("Logical operator requires integral operands");
3152 Value* tmpVal1 = getVal(*$2, $3);
3154 Value* tmpVal2 = getVal(*$2, $5);
3156 $$ = BinaryOperator::Create($1, tmpVal1, tmpVal2);
3158 GEN_ERROR("binary operator returned null");
3161 | ICMP IPredicates Types ValueRef ',' ValueRef {
3162 if (!UpRefs.empty())
3163 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3164 Value* tmpVal1 = getVal(*$3, $4);
3166 Value* tmpVal2 = getVal(*$3, $6);
3168 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3170 GEN_ERROR("icmp operator returned null");
3173 | FCMP FPredicates Types ValueRef ',' ValueRef {
3174 if (!UpRefs.empty())
3175 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3176 Value* tmpVal1 = getVal(*$3, $4);
3178 Value* tmpVal2 = getVal(*$3, $6);
3180 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3182 GEN_ERROR("fcmp operator returned null");
3185 | VICMP IPredicates Types ValueRef ',' ValueRef {
3186 if (!UpRefs.empty())
3187 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3188 if (!isa<VectorType>((*$3).get()))
3189 GEN_ERROR("Scalar types not supported by vicmp instruction");
3190 Value* tmpVal1 = getVal(*$3, $4);
3192 Value* tmpVal2 = getVal(*$3, $6);
3194 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3196 GEN_ERROR("vicmp operator returned null");
3199 | VFCMP FPredicates Types ValueRef ',' ValueRef {
3200 if (!UpRefs.empty())
3201 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3202 if (!isa<VectorType>((*$3).get()))
3203 GEN_ERROR("Scalar types not supported by vfcmp instruction");
3204 Value* tmpVal1 = getVal(*$3, $4);
3206 Value* tmpVal2 = getVal(*$3, $6);
3208 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3210 GEN_ERROR("vfcmp operator returned null");
3213 | CastOps ResolvedVal TO Types {
3214 if (!UpRefs.empty())
3215 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
3217 const Type* DestTy = $4->get();
3218 if (!CastInst::castIsValid($1, Val, DestTy))
3219 GEN_ERROR("invalid cast opcode for cast from '" +
3220 Val->getType()->getDescription() + "' to '" +
3221 DestTy->getDescription() + "'");
3222 $$ = CastInst::Create($1, Val, DestTy);
3225 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3226 if (isa<VectorType>($2->getType())) {
3228 if (!isa<VectorType>($4->getType())
3229 || !isa<VectorType>($6->getType()) )
3230 GEN_ERROR("vector select value types must be vector types");
3231 const VectorType* cond_type = cast<VectorType>($2->getType());
3232 const VectorType* select_type = cast<VectorType>($4->getType());
3233 if (cond_type->getElementType() != Type::Int1Ty)
3234 GEN_ERROR("vector select condition element type must be boolean");
3235 if (cond_type->getNumElements() != select_type->getNumElements())
3236 GEN_ERROR("vector select number of elements must be the same");
3238 if ($2->getType() != Type::Int1Ty)
3239 GEN_ERROR("select condition must be boolean");
3241 if ($4->getType() != $6->getType())
3242 GEN_ERROR("select value types must match");
3243 $$ = SelectInst::Create($2, $4, $6);
3246 | VAARG ResolvedVal ',' Types {
3247 if (!UpRefs.empty())
3248 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
3249 $$ = new VAArgInst($2, *$4);
3253 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
3254 if (!ExtractElementInst::isValidOperands($2, $4))
3255 GEN_ERROR("Invalid extractelement operands");
3256 $$ = new ExtractElementInst($2, $4);
3259 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3260 if (!InsertElementInst::isValidOperands($2, $4, $6))
3261 GEN_ERROR("Invalid insertelement operands");
3262 $$ = InsertElementInst::Create($2, $4, $6);
3265 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3266 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
3267 GEN_ERROR("Invalid shufflevector operands");
3268 $$ = new ShuffleVectorInst($2, $4, $6);
3272 const Type *Ty = $2->front().first->getType();
3273 if (!Ty->isFirstClassType())
3274 GEN_ERROR("PHI node operands must be of first class type");
3275 $$ = PHINode::Create(Ty);
3276 ((PHINode*)$$)->reserveOperandSpace($2->size());
3277 while ($2->begin() != $2->end()) {
3278 if ($2->front().first->getType() != Ty)
3279 GEN_ERROR("All elements of a PHI node must be of the same type");
3280 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
3283 delete $2; // Free the list...
3286 | OptTailCall OptCallingConv OptRetAttrs ResultTypes ValueRef '(' ParamList ')'
3289 // Handle the short syntax
3290 const PointerType *PFTy = 0;
3291 const FunctionType *Ty = 0;
3292 if (!(PFTy = dyn_cast<PointerType>($4->get())) ||
3293 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3294 // Pull out the types of all of the arguments...
3295 std::vector<const Type*> ParamTypes;
3296 ParamList::iterator I = $7->begin(), E = $7->end();
3297 for (; I != E; ++I) {
3298 const Type *Ty = I->Val->getType();
3299 if (Ty == Type::VoidTy)
3300 GEN_ERROR("Short call syntax cannot be used with varargs");
3301 ParamTypes.push_back(Ty);
3304 if (!FunctionType::isValidReturnType(*$4))
3305 GEN_ERROR("Invalid result type for LLVM function");
3307 Ty = FunctionType::get($4->get(), ParamTypes, false);
3308 PFTy = PointerType::getUnqual(Ty);
3311 Value *V = getVal(PFTy, $5); // Get the function we're calling...
3314 // Check for call to invalid intrinsic to avoid crashing later.
3315 if (Function *theF = dyn_cast<Function>(V)) {
3316 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
3317 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
3318 !theF->getIntrinsicID(true))
3319 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
3320 theF->getName() + "'");
3323 // Set up the Attributes for the function
3324 SmallVector<AttributeWithIndex, 8> Attrs;
3325 //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
3327 Attributes RetAttrs = $3;
3328 if ($9 != Attribute::None) {
3329 if ($9 & Attribute::ZExt) {
3330 RetAttrs = RetAttrs | Attribute::ZExt;
3331 $9 = $9 ^ Attribute::ZExt;
3333 if ($9 & Attribute::SExt) {
3334 RetAttrs = RetAttrs | Attribute::SExt;
3335 $9 = $9 ^ Attribute::SExt;
3337 if ($9 & Attribute::InReg) {
3338 RetAttrs = RetAttrs | Attribute::InReg;
3339 $9 = $9 ^ Attribute::InReg;
3342 if (RetAttrs != Attribute::None)
3343 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
3345 // Check the arguments
3347 if ($7->empty()) { // Has no arguments?
3348 // Make sure no arguments is a good thing!
3349 if (Ty->getNumParams() != 0)
3350 GEN_ERROR("No arguments passed to a function that "
3351 "expects arguments");
3352 } else { // Has arguments?
3353 // Loop through FunctionType's arguments and ensure they are specified
3354 // correctly. Also, gather any parameter attributes.
3355 FunctionType::param_iterator I = Ty->param_begin();
3356 FunctionType::param_iterator E = Ty->param_end();
3357 ParamList::iterator ArgI = $7->begin(), ArgE = $7->end();
3360 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
3361 if (ArgI->Val->getType() != *I)
3362 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
3363 (*I)->getDescription() + "'");
3364 Args.push_back(ArgI->Val);
3365 if (ArgI->Attrs != Attribute::None)
3366 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
3368 if (Ty->isVarArg()) {
3370 for (; ArgI != ArgE; ++ArgI, ++index) {
3371 Args.push_back(ArgI->Val); // push the remaining varargs
3372 if (ArgI->Attrs != Attribute::None)
3373 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
3375 } else if (I != E || ArgI != ArgE)
3376 GEN_ERROR("Invalid number of parameters detected");
3378 if ($9 != Attribute::None)
3379 Attrs.push_back(AttributeWithIndex::get(~0, $9));
3381 // Finish off the Attributes and check them
3384 PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
3386 // Create the call node
3387 CallInst *CI = CallInst::Create(V, Args.begin(), Args.end());
3388 CI->setTailCall($1);
3389 CI->setCallingConv($2);
3390 CI->setAttributes(PAL);
3401 OptVolatile : VOLATILE {
3412 MemoryInst : MALLOC Types OptCAlign {
3413 if (!UpRefs.empty())
3414 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3415 $$ = new MallocInst(*$2, 0, $3);
3419 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
3420 if (!UpRefs.empty())
3421 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3422 if ($4 != Type::Int32Ty)
3423 GEN_ERROR("Malloc array size is not a 32-bit integer!");
3424 Value* tmpVal = getVal($4, $5);
3426 $$ = new MallocInst(*$2, tmpVal, $6);
3429 | ALLOCA Types OptCAlign {
3430 if (!UpRefs.empty())
3431 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3432 $$ = new AllocaInst(*$2, 0, $3);
3436 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
3437 if (!UpRefs.empty())
3438 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3439 if ($4 != Type::Int32Ty)
3440 GEN_ERROR("Alloca array size is not a 32-bit integer!");
3441 Value* tmpVal = getVal($4, $5);
3443 $$ = new AllocaInst(*$2, tmpVal, $6);
3446 | FREE ResolvedVal {
3447 if (!isa<PointerType>($2->getType()))
3448 GEN_ERROR("Trying to free nonpointer type " +
3449 $2->getType()->getDescription() + "");
3450 $$ = new FreeInst($2);
3454 | OptVolatile LOAD Types ValueRef OptCAlign {
3455 if (!UpRefs.empty())
3456 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3457 if (!isa<PointerType>($3->get()))
3458 GEN_ERROR("Can't load from nonpointer type: " +
3459 (*$3)->getDescription());
3460 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3461 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3462 (*$3)->getDescription());
3463 Value* tmpVal = getVal(*$3, $4);
3465 $$ = new LoadInst(tmpVal, "", $1, $5);
3468 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3469 if (!UpRefs.empty())
3470 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3471 const PointerType *PT = dyn_cast<PointerType>($5->get());
3473 GEN_ERROR("Can't store to a nonpointer type: " +
3474 (*$5)->getDescription());
3475 const Type *ElTy = PT->getElementType();
3476 if (ElTy != $3->getType())
3477 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3478 "' into space of type '" + ElTy->getDescription() + "'");
3480 Value* tmpVal = getVal(*$5, $6);
3482 $$ = new StoreInst($3, tmpVal, $1, $7);
3485 | GETRESULT Types ValueRef ',' EUINT64VAL {
3486 if (!UpRefs.empty())
3487 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3488 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3489 GEN_ERROR("getresult insn requires an aggregate operand");
3490 if (!ExtractValueInst::getIndexedType(*$2, $5))
3491 GEN_ERROR("Invalid getresult index for type '" +
3492 (*$2)->getDescription()+ "'");
3494 Value *tmpVal = getVal(*$2, $3);
3496 $$ = ExtractValueInst::Create(tmpVal, $5);
3499 | GETELEMENTPTR Types ValueRef IndexList {
3500 if (!UpRefs.empty())
3501 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3502 if (!isa<PointerType>($2->get()))
3503 GEN_ERROR("getelementptr insn requires pointer operand");
3505 if (!GetElementPtrInst::getIndexedType(*$2, $4->begin(), $4->end()))
3506 GEN_ERROR("Invalid getelementptr indices for type '" +
3507 (*$2)->getDescription()+ "'");
3508 Value* tmpVal = getVal(*$2, $3);
3510 $$ = GetElementPtrInst::Create(tmpVal, $4->begin(), $4->end());
3514 | EXTRACTVALUE Types ValueRef ConstantIndexList {
3515 if (!UpRefs.empty())
3516 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3517 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3518 GEN_ERROR("extractvalue insn requires an aggregate operand");
3520 if (!ExtractValueInst::getIndexedType(*$2, $4->begin(), $4->end()))
3521 GEN_ERROR("Invalid extractvalue indices for type '" +
3522 (*$2)->getDescription()+ "'");
3523 Value* tmpVal = getVal(*$2, $3);
3525 $$ = ExtractValueInst::Create(tmpVal, $4->begin(), $4->end());
3529 | INSERTVALUE Types ValueRef ',' Types ValueRef ConstantIndexList {
3530 if (!UpRefs.empty())
3531 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3532 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3533 GEN_ERROR("extractvalue insn requires an aggregate operand");
3535 if (ExtractValueInst::getIndexedType(*$2, $7->begin(), $7->end()) != $5->get())
3536 GEN_ERROR("Invalid insertvalue indices for type '" +
3537 (*$2)->getDescription()+ "'");
3538 Value* aggVal = getVal(*$2, $3);
3539 Value* tmpVal = getVal(*$5, $6);
3541 $$ = InsertValueInst::Create(aggVal, tmpVal, $7->begin(), $7->end());
3550 // common code from the two 'RunVMAsmParser' functions
3551 static Module* RunParser(Module * M) {
3552 CurModule.CurrentModule = M;
3553 // Check to make sure the parser succeeded
3556 delete ParserResult;
3560 // Emit an error if there are any unresolved types left.
3561 if (!CurModule.LateResolveTypes.empty()) {
3562 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3563 if (DID.Type == ValID::LocalName) {
3564 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3566 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3569 delete ParserResult;
3573 // Emit an error if there are any unresolved values left.
3574 if (!CurModule.LateResolveValues.empty()) {
3575 Value *V = CurModule.LateResolveValues.back();
3576 std::map<Value*, std::pair<ValID, int> >::iterator I =
3577 CurModule.PlaceHolderInfo.find(V);
3579 if (I != CurModule.PlaceHolderInfo.end()) {
3580 ValID &DID = I->second.first;
3581 if (DID.Type == ValID::LocalName) {
3582 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3584 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3587 delete ParserResult;
3592 // Check to make sure that parsing produced a result
3596 // Reset ParserResult variable while saving its value for the result.
3597 Module *Result = ParserResult;
3603 void llvm::GenerateError(const std::string &message, int LineNo) {
3604 if (LineNo == -1) LineNo = LLLgetLineNo();
3605 // TODO: column number in exception
3607 TheParseError->setError(LLLgetFilename(), message, LineNo);
3611 int yyerror(const char *ErrorMsg) {
3612 std::string where = LLLgetFilename() + ":" + utostr(LLLgetLineNo()) + ": ";
3613 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3614 if (yychar != YYEMPTY && yychar != 0) {
3615 errMsg += " while reading token: '";
3616 errMsg += std::string(LLLgetTokenStart(),
3617 LLLgetTokenStart()+LLLgetTokenLength()) + "'";
3619 GenerateError(errMsg);