1 //===-- llvmAsmParser.y - Parser for llvm assembly files --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the bison parser for LLVM assembly languages files.
12 //===----------------------------------------------------------------------===//
15 #include "ParserInternals.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/InlineAsm.h"
18 #include "llvm/Instructions.h"
19 #include "llvm/Module.h"
20 #include "llvm/ValueSymbolTable.h"
21 #include "llvm/AutoUpgrade.h"
22 #include "llvm/Support/GetElementPtrTypeIterator.h"
23 #include "llvm/Support/CommandLine.h"
24 #include "llvm/ADT/SmallVector.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/Support/MathExtras.h"
27 #include "llvm/Support/Streams.h"
33 // The following is a gross hack. In order to rid the libAsmParser library of
34 // exceptions, we have to have a way of getting the yyparse function to go into
35 // an error situation. So, whenever we want an error to occur, the GenerateError
36 // function (see bottom of file) sets TriggerError. Then, at the end of each
37 // production in the grammer we use CHECK_FOR_ERROR which will invoke YYERROR
38 // (a goto) to put YACC in error state. Furthermore, several calls to
39 // GenerateError are made from inside productions and they must simulate the
40 // previous exception behavior by exiting the production immediately. We have
41 // replaced these with the GEN_ERROR macro which calls GeneratError and then
42 // immediately invokes YYERROR. This would be so much cleaner if it was a
43 // recursive descent parser.
44 static bool TriggerError = false;
45 #define CHECK_FOR_ERROR { if (TriggerError) { TriggerError = false; YYABORT; } }
46 #define GEN_ERROR(msg) { GenerateError(msg); YYERROR; }
48 int yyerror(const char *ErrorMsg); // Forward declarations to prevent "implicit
49 int yylex(); // declaration" of xxx warnings.
53 static Module *ParserResult;
55 // DEBUG_UPREFS - Define this symbol if you want to enable debugging output
56 // relating to upreferences in the input stream.
58 //#define DEBUG_UPREFS 1
60 #define UR_OUT(X) cerr << X
65 #define YYERROR_VERBOSE 1
67 static GlobalVariable *CurGV;
70 // This contains info used when building the body of a function. It is
71 // destroyed when the function is completed.
73 typedef std::vector<Value *> ValueList; // Numbered defs
76 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers=0);
78 static struct PerModuleInfo {
79 Module *CurrentModule;
80 ValueList Values; // Module level numbered definitions
81 ValueList LateResolveValues;
82 std::vector<PATypeHolder> Types;
83 std::map<ValID, PATypeHolder> LateResolveTypes;
85 /// PlaceHolderInfo - When temporary placeholder objects are created, remember
86 /// how they were referenced and on which line of the input they came from so
87 /// that we can resolve them later and print error messages as appropriate.
88 std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
90 // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
91 // references to global values. Global values may be referenced before they
92 // are defined, and if so, the temporary object that they represent is held
93 // here. This is used for forward references of GlobalValues.
95 typedef std::map<std::pair<const PointerType *,
96 ValID>, GlobalValue*> GlobalRefsType;
97 GlobalRefsType GlobalRefs;
100 // If we could not resolve some functions at function compilation time
101 // (calls to functions before they are defined), resolve them now... Types
102 // are resolved when the constant pool has been completely parsed.
104 ResolveDefinitions(LateResolveValues);
108 // Check to make sure that all global value forward references have been
111 if (!GlobalRefs.empty()) {
112 std::string UndefinedReferences = "Unresolved global references exist:\n";
114 for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
116 UndefinedReferences += " " + I->first.first->getDescription() + " " +
117 I->first.second.getName() + "\n";
119 GenerateError(UndefinedReferences);
123 // Look for intrinsic functions and CallInst that need to be upgraded
124 for (Module::iterator FI = CurrentModule->begin(),
125 FE = CurrentModule->end(); FI != FE; )
126 UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove
128 Values.clear(); // Clear out function local definitions
133 // GetForwardRefForGlobal - Check to see if there is a forward reference
134 // for this global. If so, remove it from the GlobalRefs map and return it.
135 // If not, just return null.
136 GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
137 // Check to see if there is a forward reference to this global variable...
138 // if there is, eliminate it and patch the reference to use the new def'n.
139 GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
140 GlobalValue *Ret = 0;
141 if (I != GlobalRefs.end()) {
148 bool TypeIsUnresolved(PATypeHolder* PATy) {
149 // If it isn't abstract, its resolved
150 const Type* Ty = PATy->get();
151 if (!Ty->isAbstract())
153 // Traverse the type looking for abstract types. If it isn't abstract then
154 // we don't need to traverse that leg of the type.
155 std::vector<const Type*> WorkList, SeenList;
156 WorkList.push_back(Ty);
157 while (!WorkList.empty()) {
158 const Type* Ty = WorkList.back();
159 SeenList.push_back(Ty);
161 if (const OpaqueType* OpTy = dyn_cast<OpaqueType>(Ty)) {
162 // Check to see if this is an unresolved type
163 std::map<ValID, PATypeHolder>::iterator I = LateResolveTypes.begin();
164 std::map<ValID, PATypeHolder>::iterator E = LateResolveTypes.end();
165 for ( ; I != E; ++I) {
166 if (I->second.get() == OpTy)
169 } else if (const SequentialType* SeqTy = dyn_cast<SequentialType>(Ty)) {
170 const Type* TheTy = SeqTy->getElementType();
171 if (TheTy->isAbstract() && TheTy != Ty) {
172 std::vector<const Type*>::iterator I = SeenList.begin(),
178 WorkList.push_back(TheTy);
180 } else if (const StructType* StrTy = dyn_cast<StructType>(Ty)) {
181 for (unsigned i = 0; i < StrTy->getNumElements(); ++i) {
182 const Type* TheTy = StrTy->getElementType(i);
183 if (TheTy->isAbstract() && TheTy != Ty) {
184 std::vector<const Type*>::iterator I = SeenList.begin(),
190 WorkList.push_back(TheTy);
199 static struct PerFunctionInfo {
200 Function *CurrentFunction; // Pointer to current function being created
202 ValueList Values; // Keep track of #'d definitions
204 ValueList LateResolveValues;
205 bool isDeclare; // Is this function a forward declararation?
206 GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
207 GlobalValue::VisibilityTypes Visibility;
209 /// BBForwardRefs - When we see forward references to basic blocks, keep
210 /// track of them here.
211 std::map<ValID, BasicBlock*> BBForwardRefs;
213 inline PerFunctionInfo() {
216 Linkage = GlobalValue::ExternalLinkage;
217 Visibility = GlobalValue::DefaultVisibility;
220 inline void FunctionStart(Function *M) {
225 void FunctionDone() {
226 // Any forward referenced blocks left?
227 if (!BBForwardRefs.empty()) {
228 GenerateError("Undefined reference to label " +
229 BBForwardRefs.begin()->second->getName());
233 // Resolve all forward references now.
234 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
236 Values.clear(); // Clear out function local definitions
237 BBForwardRefs.clear();
240 Linkage = GlobalValue::ExternalLinkage;
241 Visibility = GlobalValue::DefaultVisibility;
243 } CurFun; // Info for the current function...
245 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
248 //===----------------------------------------------------------------------===//
249 // Code to handle definitions of all the types
250 //===----------------------------------------------------------------------===//
252 /// InsertValue - Insert a value into the value table. If it is named, this
253 /// returns -1, otherwise it returns the slot number for the value.
254 static int InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
255 // Things that have names or are void typed don't get slot numbers
256 if (V->hasName() || (V->getType() == Type::VoidTy))
259 // In the case of function values, we have to allow for the forward reference
260 // of basic blocks, which are included in the numbering. Consequently, we keep
261 // track of the next insertion location with NextValNum. When a BB gets
262 // inserted, it could change the size of the CurFun.Values vector.
263 if (&ValueTab == &CurFun.Values) {
264 if (ValueTab.size() <= CurFun.NextValNum)
265 ValueTab.resize(CurFun.NextValNum+1);
266 ValueTab[CurFun.NextValNum++] = V;
267 return CurFun.NextValNum-1;
269 // For all other lists, its okay to just tack it on the back of the vector.
270 ValueTab.push_back(V);
271 return ValueTab.size()-1;
274 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
276 case ValID::LocalID: // Is it a numbered definition?
277 // Module constants occupy the lowest numbered slots...
278 if (D.Num < CurModule.Types.size())
279 return CurModule.Types[D.Num];
281 case ValID::LocalName: // Is it a named definition?
282 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.getName())) {
283 D.destroy(); // Free old strdup'd memory...
288 GenerateError("Internal parser error: Invalid symbol type reference");
292 // If we reached here, we referenced either a symbol that we don't know about
293 // or an id number that hasn't been read yet. We may be referencing something
294 // forward, so just create an entry to be resolved later and get to it...
296 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
299 if (inFunctionScope()) {
300 if (D.Type == ValID::LocalName) {
301 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
304 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
309 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
310 if (I != CurModule.LateResolveTypes.end())
313 Type *Typ = OpaqueType::get();
314 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
318 // getExistingVal - Look up the value specified by the provided type and
319 // the provided ValID. If the value exists and has already been defined, return
320 // it. Otherwise return null.
322 static Value *getExistingVal(const Type *Ty, const ValID &D) {
323 if (isa<FunctionType>(Ty)) {
324 GenerateError("Functions are not values and "
325 "must be referenced as pointers");
330 case ValID::LocalID: { // Is it a numbered definition?
331 // Check that the number is within bounds.
332 if (D.Num >= CurFun.Values.size())
334 Value *Result = CurFun.Values[D.Num];
335 if (Ty != Result->getType()) {
336 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
337 Result->getType()->getDescription() + "' does not match "
338 "expected type, '" + Ty->getDescription() + "'");
343 case ValID::GlobalID: { // Is it a numbered definition?
344 if (D.Num >= CurModule.Values.size())
346 Value *Result = CurModule.Values[D.Num];
347 if (Ty != Result->getType()) {
348 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
349 Result->getType()->getDescription() + "' does not match "
350 "expected type, '" + Ty->getDescription() + "'");
356 case ValID::LocalName: { // Is it a named definition?
357 if (!inFunctionScope())
359 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
360 Value *N = SymTab.lookup(D.getName());
363 if (N->getType() != Ty)
366 D.destroy(); // Free old strdup'd memory...
369 case ValID::GlobalName: { // Is it a named definition?
370 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
371 Value *N = SymTab.lookup(D.getName());
374 if (N->getType() != Ty)
377 D.destroy(); // Free old strdup'd memory...
381 // Check to make sure that "Ty" is an integral type, and that our
382 // value will fit into the specified type...
383 case ValID::ConstSIntVal: // Is it a constant pool reference??
384 if (!isa<IntegerType>(Ty) ||
385 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
386 GenerateError("Signed integral constant '" +
387 itostr(D.ConstPool64) + "' is invalid for type '" +
388 Ty->getDescription() + "'");
391 return ConstantInt::get(Ty, D.ConstPool64, true);
393 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
394 if (isa<IntegerType>(Ty) &&
395 ConstantInt::isValueValidForType(Ty, D.UConstPool64))
396 return ConstantInt::get(Ty, D.UConstPool64);
398 if (!isa<IntegerType>(Ty) ||
399 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
400 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
401 "' is invalid or out of range for type '" +
402 Ty->getDescription() + "'");
405 // This is really a signed reference. Transmogrify.
406 return ConstantInt::get(Ty, D.ConstPool64, true);
408 case ValID::ConstAPInt: // Is it an unsigned const pool reference?
409 if (!isa<IntegerType>(Ty)) {
410 GenerateError("Integral constant '" + D.getName() +
411 "' is invalid or out of range for type '" +
412 Ty->getDescription() + "'");
417 APSInt Tmp = *D.ConstPoolInt;
418 Tmp.extOrTrunc(Ty->getPrimitiveSizeInBits());
419 return ConstantInt::get(Tmp);
422 case ValID::ConstFPVal: // Is it a floating point const pool reference?
423 if (!Ty->isFloatingPoint() ||
424 !ConstantFP::isValueValidForType(Ty, *D.ConstPoolFP)) {
425 GenerateError("FP constant invalid for type");
428 // Lexer has no type info, so builds all float and double FP constants
429 // as double. Fix this here. Long double does not need this.
430 if (&D.ConstPoolFP->getSemantics() == &APFloat::IEEEdouble &&
433 D.ConstPoolFP->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven,
436 return ConstantFP::get(*D.ConstPoolFP);
438 case ValID::ConstNullVal: // Is it a null value?
439 if (!isa<PointerType>(Ty)) {
440 GenerateError("Cannot create a a non pointer null");
443 return ConstantPointerNull::get(cast<PointerType>(Ty));
445 case ValID::ConstUndefVal: // Is it an undef value?
446 return UndefValue::get(Ty);
448 case ValID::ConstZeroVal: // Is it a zero value?
449 return Constant::getNullValue(Ty);
451 case ValID::ConstantVal: // Fully resolved constant?
452 if (D.ConstantValue->getType() != Ty) {
453 GenerateError("Constant expression type different from required type");
456 return D.ConstantValue;
458 case ValID::InlineAsmVal: { // Inline asm expression
459 const PointerType *PTy = dyn_cast<PointerType>(Ty);
460 const FunctionType *FTy =
461 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
462 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
463 GenerateError("Invalid type for asm constraint string");
466 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
467 D.IAD->HasSideEffects);
468 D.destroy(); // Free InlineAsmDescriptor.
472 assert(0 && "Unhandled case!");
476 assert(0 && "Unhandled case!");
480 // getVal - This function is identical to getExistingVal, except that if a
481 // value is not already defined, it "improvises" by creating a placeholder var
482 // that looks and acts just like the requested variable. When the value is
483 // defined later, all uses of the placeholder variable are replaced with the
486 static Value *getVal(const Type *Ty, const ValID &ID) {
487 if (Ty == Type::LabelTy) {
488 GenerateError("Cannot use a basic block here");
492 // See if the value has already been defined.
493 Value *V = getExistingVal(Ty, ID);
495 if (TriggerError) return 0;
497 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
498 GenerateError("Invalid use of a non-first-class type");
502 // If we reached here, we referenced either a symbol that we don't know about
503 // or an id number that hasn't been read yet. We may be referencing something
504 // forward, so just create an entry to be resolved later and get to it...
507 case ValID::GlobalName:
508 case ValID::GlobalID: {
509 const PointerType *PTy = dyn_cast<PointerType>(Ty);
511 GenerateError("Invalid type for reference to global" );
514 const Type* ElTy = PTy->getElementType();
515 if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy))
516 V = Function::Create(FTy, GlobalValue::ExternalLinkage);
518 V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage, 0, "",
519 (Module*)0, false, PTy->getAddressSpace());
523 V = new Argument(Ty);
526 // Remember where this forward reference came from. FIXME, shouldn't we try
527 // to recycle these things??
528 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
531 if (inFunctionScope())
532 InsertValue(V, CurFun.LateResolveValues);
534 InsertValue(V, CurModule.LateResolveValues);
538 /// defineBBVal - This is a definition of a new basic block with the specified
539 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
540 static BasicBlock *defineBBVal(const ValID &ID) {
541 assert(inFunctionScope() && "Can't get basic block at global scope!");
545 // First, see if this was forward referenced
547 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
548 if (BBI != CurFun.BBForwardRefs.end()) {
550 // The forward declaration could have been inserted anywhere in the
551 // function: insert it into the correct place now.
552 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
553 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
555 // We're about to erase the entry, save the key so we can clean it up.
556 ValID Tmp = BBI->first;
558 // Erase the forward ref from the map as its no longer "forward"
559 CurFun.BBForwardRefs.erase(ID);
561 // The key has been removed from the map but so we don't want to leave
562 // strdup'd memory around so destroy it too.
565 // If its a numbered definition, bump the number and set the BB value.
566 if (ID.Type == ValID::LocalID) {
567 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
571 // We haven't seen this BB before and its first mention is a definition.
572 // Just create it and return it.
573 std::string Name (ID.Type == ValID::LocalName ? ID.getName() : "");
574 BB = BasicBlock::Create(Name, CurFun.CurrentFunction);
575 if (ID.Type == ValID::LocalID) {
576 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
585 /// getBBVal - get an existing BB value or create a forward reference for it.
587 static BasicBlock *getBBVal(const ValID &ID) {
588 assert(inFunctionScope() && "Can't get basic block at global scope!");
592 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
593 if (BBI != CurFun.BBForwardRefs.end()) {
595 } if (ID.Type == ValID::LocalName) {
596 std::string Name = ID.getName();
597 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
599 if (N->getType()->getTypeID() == Type::LabelTyID)
600 BB = cast<BasicBlock>(N);
602 GenerateError("Reference to label '" + Name + "' is actually of type '"+
603 N->getType()->getDescription() + "'");
605 } else if (ID.Type == ValID::LocalID) {
606 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
607 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
608 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
610 GenerateError("Reference to label '%" + utostr(ID.Num) +
611 "' is actually of type '"+
612 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
615 GenerateError("Illegal label reference " + ID.getName());
619 // If its already been defined, return it now.
621 ID.destroy(); // Free strdup'd memory.
625 // Otherwise, this block has not been seen before, create it.
627 if (ID.Type == ValID::LocalName)
629 BB = BasicBlock::Create(Name, CurFun.CurrentFunction);
631 // Insert it in the forward refs map.
632 CurFun.BBForwardRefs[ID] = BB;
638 //===----------------------------------------------------------------------===//
639 // Code to handle forward references in instructions
640 //===----------------------------------------------------------------------===//
642 // This code handles the late binding needed with statements that reference
643 // values not defined yet... for example, a forward branch, or the PHI node for
646 // This keeps a table (CurFun.LateResolveValues) of all such forward references
647 // and back patchs after we are done.
650 // ResolveDefinitions - If we could not resolve some defs at parsing
651 // time (forward branches, phi functions for loops, etc...) resolve the
655 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
656 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
657 while (!LateResolvers.empty()) {
658 Value *V = LateResolvers.back();
659 LateResolvers.pop_back();
661 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
662 CurModule.PlaceHolderInfo.find(V);
663 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
665 ValID &DID = PHI->second.first;
667 Value *TheRealValue = getExistingVal(V->getType(), DID);
671 V->replaceAllUsesWith(TheRealValue);
673 CurModule.PlaceHolderInfo.erase(PHI);
674 } else if (FutureLateResolvers) {
675 // Functions have their unresolved items forwarded to the module late
677 InsertValue(V, *FutureLateResolvers);
679 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
680 GenerateError("Reference to an invalid definition: '" +DID.getName()+
681 "' of type '" + V->getType()->getDescription() + "'",
685 GenerateError("Reference to an invalid definition: #" +
686 itostr(DID.Num) + " of type '" +
687 V->getType()->getDescription() + "'",
693 LateResolvers.clear();
696 // ResolveTypeTo - A brand new type was just declared. This means that (if
697 // name is not null) things referencing Name can be resolved. Otherwise, things
698 // refering to the number can be resolved. Do this now.
700 static void ResolveTypeTo(std::string *Name, const Type *ToTy) {
703 D = ValID::createLocalName(*Name);
705 D = ValID::createLocalID(CurModule.Types.size());
707 std::map<ValID, PATypeHolder>::iterator I =
708 CurModule.LateResolveTypes.find(D);
709 if (I != CurModule.LateResolveTypes.end()) {
710 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
711 CurModule.LateResolveTypes.erase(I);
716 // setValueName - Set the specified value to the name given. The name may be
717 // null potentially, in which case this is a noop. The string passed in is
718 // assumed to be a malloc'd string buffer, and is free'd by this function.
720 static void setValueName(Value *V, std::string *NameStr) {
721 if (!NameStr) return;
722 std::string Name(*NameStr); // Copy string
723 delete NameStr; // Free old string
725 if (V->getType() == Type::VoidTy) {
726 GenerateError("Can't assign name '" + Name+"' to value with void type");
730 assert(inFunctionScope() && "Must be in function scope!");
731 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
732 if (ST.lookup(Name)) {
733 GenerateError("Redefinition of value '" + Name + "' of type '" +
734 V->getType()->getDescription() + "'");
742 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
743 /// this is a declaration, otherwise it is a definition.
744 static GlobalVariable *
745 ParseGlobalVariable(std::string *NameStr,
746 GlobalValue::LinkageTypes Linkage,
747 GlobalValue::VisibilityTypes Visibility,
748 bool isConstantGlobal, const Type *Ty,
749 Constant *Initializer, bool IsThreadLocal,
750 unsigned AddressSpace = 0) {
751 if (isa<FunctionType>(Ty)) {
752 GenerateError("Cannot declare global vars of function type");
755 if (Ty == Type::LabelTy) {
756 GenerateError("Cannot declare global vars of label type");
760 const PointerType *PTy = PointerType::get(Ty, AddressSpace);
764 Name = *NameStr; // Copy string
765 delete NameStr; // Free old string
768 // See if this global value was forward referenced. If so, recycle the
772 ID = ValID::createGlobalName(Name);
774 ID = ValID::createGlobalID(CurModule.Values.size());
777 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
778 // Move the global to the end of the list, from whereever it was
779 // previously inserted.
780 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
781 CurModule.CurrentModule->getGlobalList().remove(GV);
782 CurModule.CurrentModule->getGlobalList().push_back(GV);
783 GV->setInitializer(Initializer);
784 GV->setLinkage(Linkage);
785 GV->setVisibility(Visibility);
786 GV->setConstant(isConstantGlobal);
787 GV->setThreadLocal(IsThreadLocal);
788 InsertValue(GV, CurModule.Values);
795 // If this global has a name
797 // if the global we're parsing has an initializer (is a definition) and
798 // has external linkage.
799 if (Initializer && Linkage != GlobalValue::InternalLinkage)
800 // If there is already a global with external linkage with this name
801 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
802 // If we allow this GVar to get created, it will be renamed in the
803 // symbol table because it conflicts with an existing GVar. We can't
804 // allow redefinition of GVars whose linking indicates that their name
805 // must stay the same. Issue the error.
806 GenerateError("Redefinition of global variable named '" + Name +
807 "' of type '" + Ty->getDescription() + "'");
812 // Otherwise there is no existing GV to use, create one now.
814 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
815 CurModule.CurrentModule, IsThreadLocal, AddressSpace);
816 GV->setVisibility(Visibility);
817 InsertValue(GV, CurModule.Values);
821 // setTypeName - Set the specified type to the name given. The name may be
822 // null potentially, in which case this is a noop. The string passed in is
823 // assumed to be a malloc'd string buffer, and is freed by this function.
825 // This function returns true if the type has already been defined, but is
826 // allowed to be redefined in the specified context. If the name is a new name
827 // for the type plane, it is inserted and false is returned.
828 static bool setTypeName(const Type *T, std::string *NameStr) {
829 assert(!inFunctionScope() && "Can't give types function-local names!");
830 if (NameStr == 0) return false;
832 std::string Name(*NameStr); // Copy string
833 delete NameStr; // Free old string
835 // We don't allow assigning names to void type
836 if (T == Type::VoidTy) {
837 GenerateError("Can't assign name '" + Name + "' to the void type");
841 // Set the type name, checking for conflicts as we do so.
842 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
844 if (AlreadyExists) { // Inserting a name that is already defined???
845 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
846 assert(Existing && "Conflict but no matching type?!");
848 // There is only one case where this is allowed: when we are refining an
849 // opaque type. In this case, Existing will be an opaque type.
850 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
851 // We ARE replacing an opaque type!
852 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
856 // Otherwise, this is an attempt to redefine a type. That's okay if
857 // the redefinition is identical to the original. This will be so if
858 // Existing and T point to the same Type object. In this one case we
859 // allow the equivalent redefinition.
860 if (Existing == T) return true; // Yes, it's equal.
862 // Any other kind of (non-equivalent) redefinition is an error.
863 GenerateError("Redefinition of type named '" + Name + "' of type '" +
864 T->getDescription() + "'");
870 //===----------------------------------------------------------------------===//
871 // Code for handling upreferences in type names...
874 // TypeContains - Returns true if Ty directly contains E in it.
876 static bool TypeContains(const Type *Ty, const Type *E) {
877 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
878 E) != Ty->subtype_end();
883 // NestingLevel - The number of nesting levels that need to be popped before
884 // this type is resolved.
885 unsigned NestingLevel;
887 // LastContainedTy - This is the type at the current binding level for the
888 // type. Every time we reduce the nesting level, this gets updated.
889 const Type *LastContainedTy;
891 // UpRefTy - This is the actual opaque type that the upreference is
895 UpRefRecord(unsigned NL, OpaqueType *URTy)
896 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
900 // UpRefs - A list of the outstanding upreferences that need to be resolved.
901 static std::vector<UpRefRecord> UpRefs;
903 /// HandleUpRefs - Every time we finish a new layer of types, this function is
904 /// called. It loops through the UpRefs vector, which is a list of the
905 /// currently active types. For each type, if the up reference is contained in
906 /// the newly completed type, we decrement the level count. When the level
907 /// count reaches zero, the upreferenced type is the type that is passed in:
908 /// thus we can complete the cycle.
910 static PATypeHolder HandleUpRefs(const Type *ty) {
911 // If Ty isn't abstract, or if there are no up-references in it, then there is
912 // nothing to resolve here.
913 if (!ty->isAbstract() || UpRefs.empty()) return ty;
916 UR_OUT("Type '" << Ty->getDescription() <<
917 "' newly formed. Resolving upreferences.\n" <<
918 UpRefs.size() << " upreferences active!\n");
920 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
921 // to zero), we resolve them all together before we resolve them to Ty. At
922 // the end of the loop, if there is anything to resolve to Ty, it will be in
924 OpaqueType *TypeToResolve = 0;
926 for (unsigned i = 0; i != UpRefs.size(); ++i) {
927 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
928 << UpRefs[i].second->getDescription() << ") = "
929 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
930 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
931 // Decrement level of upreference
932 unsigned Level = --UpRefs[i].NestingLevel;
933 UpRefs[i].LastContainedTy = Ty;
934 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
935 if (Level == 0) { // Upreference should be resolved!
936 if (!TypeToResolve) {
937 TypeToResolve = UpRefs[i].UpRefTy;
939 UR_OUT(" * Resolving upreference for "
940 << UpRefs[i].second->getDescription() << "\n";
941 std::string OldName = UpRefs[i].UpRefTy->getDescription());
942 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
943 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
944 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
946 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
947 --i; // Do not skip the next element...
953 UR_OUT(" * Resolving upreference for "
954 << UpRefs[i].second->getDescription() << "\n";
955 std::string OldName = TypeToResolve->getDescription());
956 TypeToResolve->refineAbstractTypeTo(Ty);
962 //===----------------------------------------------------------------------===//
963 // RunVMAsmParser - Define an interface to this parser
964 //===----------------------------------------------------------------------===//
966 static Module* RunParser(Module * M);
968 Module *llvm::RunVMAsmParser(llvm::MemoryBuffer *MB) {
970 Module *M = RunParser(new Module(LLLgetFilename()));
978 llvm::Module *ModuleVal;
979 llvm::Function *FunctionVal;
980 llvm::BasicBlock *BasicBlockVal;
981 llvm::TerminatorInst *TermInstVal;
982 llvm::Instruction *InstVal;
983 llvm::Constant *ConstVal;
985 const llvm::Type *PrimType;
986 std::list<llvm::PATypeHolder> *TypeList;
987 llvm::PATypeHolder *TypeVal;
988 llvm::Value *ValueVal;
989 std::vector<llvm::Value*> *ValueList;
990 std::vector<unsigned> *ConstantList;
991 llvm::ArgListType *ArgList;
992 llvm::TypeWithAttrs TypeWithAttrs;
993 llvm::TypeWithAttrsList *TypeWithAttrsList;
994 llvm::ParamList *ParamList;
996 // Represent the RHS of PHI node
997 std::list<std::pair<llvm::Value*,
998 llvm::BasicBlock*> > *PHIList;
999 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
1000 std::vector<llvm::Constant*> *ConstVector;
1002 llvm::GlobalValue::LinkageTypes Linkage;
1003 llvm::GlobalValue::VisibilityTypes Visibility;
1004 llvm::Attributes Attributes;
1005 llvm::APInt *APIntVal;
1010 llvm::APFloat *FPVal;
1013 std::string *StrVal; // This memory must be deleted
1014 llvm::ValID ValIDVal;
1016 llvm::Instruction::BinaryOps BinaryOpVal;
1017 llvm::Instruction::TermOps TermOpVal;
1018 llvm::Instruction::MemoryOps MemOpVal;
1019 llvm::Instruction::CastOps CastOpVal;
1020 llvm::Instruction::OtherOps OtherOpVal;
1021 llvm::ICmpInst::Predicate IPredicate;
1022 llvm::FCmpInst::Predicate FPredicate;
1025 %type <ModuleVal> Module
1026 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1027 %type <BasicBlockVal> BasicBlock InstructionList
1028 %type <TermInstVal> BBTerminatorInst
1029 %type <InstVal> Inst InstVal MemoryInst
1030 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1031 %type <ConstVector> ConstVector
1032 %type <ArgList> ArgList ArgListH
1033 %type <PHIList> PHIList
1034 %type <ParamList> ParamList // For call param lists & GEP indices
1035 %type <ValueList> IndexList // For GEP indices
1036 %type <ConstantList> ConstantIndexList // For insertvalue/extractvalue indices
1037 %type <TypeList> TypeListI
1038 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1039 %type <TypeWithAttrs> ArgType
1040 %type <JumpTable> JumpTable
1041 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1042 %type <BoolVal> ThreadLocal // 'thread_local' or not
1043 %type <BoolVal> OptVolatile // 'volatile' or not
1044 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1045 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1046 %type <Linkage> GVInternalLinkage GVExternalLinkage
1047 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1048 %type <Linkage> AliasLinkage
1049 %type <Visibility> GVVisibilityStyle
1051 // ValueRef - Unresolved reference to a definition or BB
1052 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1053 %type <ValueVal> ResolvedVal // <type> <valref> pair
1054 %type <ValueList> ReturnedVal
1055 // Tokens and types for handling constant integer values
1057 // ESINT64VAL - A negative number within long long range
1058 %token <SInt64Val> ESINT64VAL
1060 // EUINT64VAL - A positive number within uns. long long range
1061 %token <UInt64Val> EUINT64VAL
1063 // ESAPINTVAL - A negative number with arbitrary precision
1064 %token <APIntVal> ESAPINTVAL
1066 // EUAPINTVAL - A positive number with arbitrary precision
1067 %token <APIntVal> EUAPINTVAL
1069 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1070 %token <FPVal> FPVAL // Float or Double constant
1072 // Built in types...
1073 %type <TypeVal> Types ResultTypes
1074 %type <PrimType> PrimType // Classifications
1075 %token <PrimType> VOID INTTYPE
1076 %token <PrimType> FLOAT DOUBLE X86_FP80 FP128 PPC_FP128 LABEL
1080 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR
1081 %token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT
1082 %type <StrVal> LocalName OptLocalName OptLocalAssign
1083 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1084 %type <StrVal> OptSection SectionString OptGC
1086 %type <UIntVal> OptAlign OptCAlign OptAddrSpace
1088 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1089 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1090 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1091 %token DLLIMPORT DLLEXPORT EXTERN_WEAK COMMON
1092 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN ADDRSPACE
1093 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1094 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1096 %type <UIntVal> OptCallingConv LocalNumber
1097 %type <Attributes> OptAttributes Attribute
1098 %type <Attributes> OptFuncAttrs FuncAttr
1099 %type <Attributes> OptRetAttrs RetAttr
1101 // Basic Block Terminating Operators
1102 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1105 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1106 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1107 %token <BinaryOpVal> SHL LSHR ASHR
1109 %token <OtherOpVal> ICMP FCMP VICMP VFCMP
1110 %type <IPredicate> IPredicates
1111 %type <FPredicate> FPredicates
1112 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1113 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1115 // Memory Instructions
1116 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1119 %type <CastOpVal> CastOps
1120 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1121 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1124 %token <OtherOpVal> PHI_TOK SELECT VAARG
1125 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1126 %token <OtherOpVal> GETRESULT
1127 %token <OtherOpVal> EXTRACTVALUE INSERTVALUE
1129 // Function Attributes
1130 %token SIGNEXT ZEROEXT NORETURN INREG SRET NOUNWIND NOALIAS BYVAL NEST
1131 %token READNONE READONLY GC OPTSIZE NOINLINE ALWAYSINLINE
1133 // Visibility Styles
1134 %token DEFAULT HIDDEN PROTECTED
1140 // Operations that are notably excluded from this list include:
1141 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1143 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1144 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1145 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1146 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1149 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1150 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1151 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1152 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1153 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1157 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1158 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1159 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1160 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1161 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1162 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1163 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1164 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1165 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1168 LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ;
1169 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1171 OptAddrSpace : ADDRSPACE '(' EUINT64VAL ')' { $$=$3; }
1172 | /*empty*/ { $$=0; };
1174 /// OptLocalAssign - Value producing statements have an optional assignment
1176 OptLocalAssign : LocalName '=' {
1185 LocalNumber : LOCALVAL_ID '=' {
1191 GlobalName : GLOBALVAR | ATSTRINGCONSTANT ;
1193 OptGlobalAssign : GlobalAssign
1199 GlobalAssign : GlobalName '=' {
1205 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1206 | WEAK { $$ = GlobalValue::WeakLinkage; }
1207 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1208 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1209 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1210 | COMMON { $$ = GlobalValue::CommonLinkage; }
1214 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1215 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1216 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1220 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1221 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1222 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1223 | PROTECTED { $$ = GlobalValue::ProtectedVisibility; }
1226 FunctionDeclareLinkage
1227 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1228 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1229 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1232 FunctionDefineLinkage
1233 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1234 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1235 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1236 | WEAK { $$ = GlobalValue::WeakLinkage; }
1237 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1241 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1242 | WEAK { $$ = GlobalValue::WeakLinkage; }
1243 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1246 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1247 CCC_TOK { $$ = CallingConv::C; } |
1248 FASTCC_TOK { $$ = CallingConv::Fast; } |
1249 COLDCC_TOK { $$ = CallingConv::Cold; } |
1250 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1251 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1253 if ((unsigned)$2 != $2)
1254 GEN_ERROR("Calling conv too large");
1259 Attribute : ZEROEXT { $$ = Attribute::ZExt; }
1260 | ZEXT { $$ = Attribute::ZExt; }
1261 | SIGNEXT { $$ = Attribute::SExt; }
1262 | SEXT { $$ = Attribute::SExt; }
1263 | INREG { $$ = Attribute::InReg; }
1264 | SRET { $$ = Attribute::StructRet; }
1265 | NOALIAS { $$ = Attribute::NoAlias; }
1266 | BYVAL { $$ = Attribute::ByVal; }
1267 | NEST { $$ = Attribute::Nest; }
1268 | ALIGN EUINT64VAL { $$ =
1269 Attribute::constructAlignmentFromInt($2); }
1272 OptAttributes : /* empty */ { $$ = Attribute::None; }
1273 | OptAttributes Attribute {
1278 RetAttr : INREG { $$ = Attribute::InReg; }
1279 | ZEROEXT { $$ = Attribute::ZExt; }
1280 | SIGNEXT { $$ = Attribute::SExt; }
1283 OptRetAttrs : /* empty */ { $$ = Attribute::None; }
1284 | OptRetAttrs RetAttr {
1290 FuncAttr : NORETURN { $$ = Attribute::NoReturn; }
1291 | NOUNWIND { $$ = Attribute::NoUnwind; }
1292 | INREG { $$ = Attribute::InReg; }
1293 | ZEROEXT { $$ = Attribute::ZExt; }
1294 | SIGNEXT { $$ = Attribute::SExt; }
1295 | READNONE { $$ = Attribute::ReadNone; }
1296 | READONLY { $$ = Attribute::ReadOnly; }
1297 | NOINLINE { $$ = Attribute::NoInline; }
1298 | ALWAYSINLINE { $$ = Attribute::AlwaysInline; }
1299 | OPTSIZE { $$ = Attribute::OptimizeForSize; }
1302 OptFuncAttrs : /* empty */ { $$ = Attribute::None; }
1303 | OptFuncAttrs FuncAttr {
1309 OptGC : /* empty */ { $$ = 0; }
1310 | GC STRINGCONSTANT {
1315 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1316 // a comma before it.
1317 OptAlign : /*empty*/ { $$ = 0; } |
1320 if ($$ != 0 && !isPowerOf2_32($$))
1321 GEN_ERROR("Alignment must be a power of two");
1324 OptCAlign : /*empty*/ { $$ = 0; } |
1325 ',' ALIGN EUINT64VAL {
1327 if ($$ != 0 && !isPowerOf2_32($$))
1328 GEN_ERROR("Alignment must be a power of two");
1334 SectionString : SECTION STRINGCONSTANT {
1335 for (unsigned i = 0, e = $2->length(); i != e; ++i)
1336 if ((*$2)[i] == '"' || (*$2)[i] == '\\')
1337 GEN_ERROR("Invalid character in section name");
1342 OptSection : /*empty*/ { $$ = 0; } |
1343 SectionString { $$ = $1; };
1345 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1346 // is set to be the global we are processing.
1348 GlobalVarAttributes : /* empty */ {} |
1349 ',' GlobalVarAttribute GlobalVarAttributes {};
1350 GlobalVarAttribute : SectionString {
1351 CurGV->setSection(*$1);
1355 | ALIGN EUINT64VAL {
1356 if ($2 != 0 && !isPowerOf2_32($2))
1357 GEN_ERROR("Alignment must be a power of two");
1358 CurGV->setAlignment($2);
1362 //===----------------------------------------------------------------------===//
1363 // Types includes all predefined types... except void, because it can only be
1364 // used in specific contexts (function returning void for example).
1366 // Derived types are added later...
1368 PrimType : INTTYPE | FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80 | LABEL ;
1372 $$ = new PATypeHolder(OpaqueType::get());
1376 $$ = new PATypeHolder($1);
1379 | Types OptAddrSpace '*' { // Pointer type?
1380 if (*$1 == Type::LabelTy)
1381 GEN_ERROR("Cannot form a pointer to a basic block");
1382 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1, $2)));
1386 | SymbolicValueRef { // Named types are also simple types...
1387 const Type* tmp = getTypeVal($1);
1389 $$ = new PATypeHolder(tmp);
1391 | '\\' EUINT64VAL { // Type UpReference
1392 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1393 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1394 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1395 $$ = new PATypeHolder(OT);
1396 UR_OUT("New Upreference!\n");
1399 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1400 // Allow but ignore attributes on function types; this permits auto-upgrade.
1401 // FIXME: remove in LLVM 3.0.
1402 const Type *RetTy = *$1;
1403 if (!FunctionType::isValidReturnType(RetTy))
1404 GEN_ERROR("Invalid result type for LLVM function");
1406 std::vector<const Type*> Params;
1407 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1408 for (; I != E; ++I ) {
1409 const Type *Ty = I->Ty->get();
1410 Params.push_back(Ty);
1413 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1414 if (isVarArg) Params.pop_back();
1416 for (unsigned i = 0; i != Params.size(); ++i)
1417 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1418 GEN_ERROR("Function arguments must be value types!");
1422 FunctionType *FT = FunctionType::get(RetTy, Params, isVarArg);
1423 delete $1; // Delete the return type handle
1424 $$ = new PATypeHolder(HandleUpRefs(FT));
1426 // Delete the argument list
1427 for (I = $3->begin() ; I != E; ++I ) {
1434 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1435 // Allow but ignore attributes on function types; this permits auto-upgrade.
1436 // FIXME: remove in LLVM 3.0.
1437 std::vector<const Type*> Params;
1438 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1439 for ( ; I != E; ++I ) {
1440 const Type* Ty = I->Ty->get();
1441 Params.push_back(Ty);
1444 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1445 if (isVarArg) Params.pop_back();
1447 for (unsigned i = 0; i != Params.size(); ++i)
1448 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1449 GEN_ERROR("Function arguments must be value types!");
1453 FunctionType *FT = FunctionType::get($1, Params, isVarArg);
1454 $$ = new PATypeHolder(HandleUpRefs(FT));
1456 // Delete the argument list
1457 for (I = $3->begin() ; I != E; ++I ) {
1465 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1466 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, $2)));
1470 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1471 const llvm::Type* ElemTy = $4->get();
1472 if ((unsigned)$2 != $2)
1473 GEN_ERROR("Unsigned result not equal to signed result");
1474 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1475 GEN_ERROR("Element type of a VectorType must be primitive");
1476 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1480 | '{' TypeListI '}' { // Structure type?
1481 std::vector<const Type*> Elements;
1482 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1483 E = $2->end(); I != E; ++I)
1484 Elements.push_back(*I);
1486 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1490 | '{' '}' { // Empty structure type?
1491 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1494 | '<' '{' TypeListI '}' '>' {
1495 std::vector<const Type*> Elements;
1496 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1497 E = $3->end(); I != E; ++I)
1498 Elements.push_back(*I);
1500 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1504 | '<' '{' '}' '>' { // Empty structure type?
1505 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1511 : Types OptAttributes {
1512 // Allow but ignore attributes on function types; this permits auto-upgrade.
1513 // FIXME: remove in LLVM 3.0.
1515 $$.Attrs = Attribute::None;
1521 if (!UpRefs.empty())
1522 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1523 if (!(*$1)->isFirstClassType() && !isa<StructType>($1->get()))
1524 GEN_ERROR("LLVM functions cannot return aggregate types");
1528 $$ = new PATypeHolder(Type::VoidTy);
1532 ArgTypeList : ArgType {
1533 $$ = new TypeWithAttrsList();
1537 | ArgTypeList ',' ArgType {
1538 ($$=$1)->push_back($3);
1545 | ArgTypeList ',' DOTDOTDOT {
1547 TypeWithAttrs TWA; TWA.Attrs = Attribute::None;
1548 TWA.Ty = new PATypeHolder(Type::VoidTy);
1553 $$ = new TypeWithAttrsList;
1554 TypeWithAttrs TWA; TWA.Attrs = Attribute::None;
1555 TWA.Ty = new PATypeHolder(Type::VoidTy);
1560 $$ = new TypeWithAttrsList();
1564 // TypeList - Used for struct declarations and as a basis for function type
1565 // declaration type lists
1568 $$ = new std::list<PATypeHolder>();
1573 | TypeListI ',' Types {
1574 ($$=$1)->push_back(*$3);
1579 // ConstVal - The various declarations that go into the constant pool. This
1580 // production is used ONLY to represent constants that show up AFTER a 'const',
1581 // 'constant' or 'global' token at global scope. Constants that can be inlined
1582 // into other expressions (such as integers and constexprs) are handled by the
1583 // ResolvedVal, ValueRef and ConstValueRef productions.
1585 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1586 if (!UpRefs.empty())
1587 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1588 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1590 GEN_ERROR("Cannot make array constant with type: '" +
1591 (*$1)->getDescription() + "'");
1592 const Type *ETy = ATy->getElementType();
1593 uint64_t NumElements = ATy->getNumElements();
1595 // Verify that we have the correct size...
1596 if (NumElements != uint64_t(-1) && NumElements != $3->size())
1597 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1598 utostr($3->size()) + " arguments, but has size of " +
1599 utostr(NumElements) + "");
1601 // Verify all elements are correct type!
1602 for (unsigned i = 0; i < $3->size(); i++) {
1603 if (ETy != (*$3)[i]->getType())
1604 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1605 ETy->getDescription() +"' as required!\nIt is of type '"+
1606 (*$3)[i]->getType()->getDescription() + "'.");
1609 $$ = ConstantArray::get(ATy, *$3);
1610 delete $1; delete $3;
1614 if (!UpRefs.empty())
1615 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1616 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1618 GEN_ERROR("Cannot make array constant with type: '" +
1619 (*$1)->getDescription() + "'");
1621 uint64_t NumElements = ATy->getNumElements();
1622 if (NumElements != uint64_t(-1) && NumElements != 0)
1623 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1624 " arguments, but has size of " + utostr(NumElements) +"");
1625 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1629 | Types 'c' STRINGCONSTANT {
1630 if (!UpRefs.empty())
1631 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1632 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1634 GEN_ERROR("Cannot make array constant with type: '" +
1635 (*$1)->getDescription() + "'");
1637 uint64_t NumElements = ATy->getNumElements();
1638 const Type *ETy = ATy->getElementType();
1639 if (NumElements != uint64_t(-1) && NumElements != $3->length())
1640 GEN_ERROR("Can't build string constant of size " +
1641 utostr($3->length()) +
1642 " when array has size " + utostr(NumElements) + "");
1643 std::vector<Constant*> Vals;
1644 if (ETy == Type::Int8Ty) {
1645 for (uint64_t i = 0; i < $3->length(); ++i)
1646 Vals.push_back(ConstantInt::get(ETy, (*$3)[i]));
1649 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1652 $$ = ConstantArray::get(ATy, Vals);
1656 | Types '<' ConstVector '>' { // Nonempty unsized arr
1657 if (!UpRefs.empty())
1658 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1659 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1661 GEN_ERROR("Cannot make packed constant with type: '" +
1662 (*$1)->getDescription() + "'");
1663 const Type *ETy = PTy->getElementType();
1664 unsigned NumElements = PTy->getNumElements();
1666 // Verify that we have the correct size...
1667 if (NumElements != unsigned(-1) && NumElements != (unsigned)$3->size())
1668 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1669 utostr($3->size()) + " arguments, but has size of " +
1670 utostr(NumElements) + "");
1672 // Verify all elements are correct type!
1673 for (unsigned i = 0; i < $3->size(); i++) {
1674 if (ETy != (*$3)[i]->getType())
1675 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1676 ETy->getDescription() +"' as required!\nIt is of type '"+
1677 (*$3)[i]->getType()->getDescription() + "'.");
1680 $$ = ConstantVector::get(PTy, *$3);
1681 delete $1; delete $3;
1684 | Types '{' ConstVector '}' {
1685 const StructType *STy = dyn_cast<StructType>($1->get());
1687 GEN_ERROR("Cannot make struct constant with type: '" +
1688 (*$1)->getDescription() + "'");
1690 if ($3->size() != STy->getNumContainedTypes())
1691 GEN_ERROR("Illegal number of initializers for structure type");
1693 // Check to ensure that constants are compatible with the type initializer!
1694 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1695 if ((*$3)[i]->getType() != STy->getElementType(i))
1696 GEN_ERROR("Expected type '" +
1697 STy->getElementType(i)->getDescription() +
1698 "' for element #" + utostr(i) +
1699 " of structure initializer");
1701 // Check to ensure that Type is not packed
1702 if (STy->isPacked())
1703 GEN_ERROR("Unpacked Initializer to vector type '" +
1704 STy->getDescription() + "'");
1706 $$ = ConstantStruct::get(STy, *$3);
1707 delete $1; delete $3;
1711 if (!UpRefs.empty())
1712 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1713 const StructType *STy = dyn_cast<StructType>($1->get());
1715 GEN_ERROR("Cannot make struct constant with type: '" +
1716 (*$1)->getDescription() + "'");
1718 if (STy->getNumContainedTypes() != 0)
1719 GEN_ERROR("Illegal number of initializers for structure type");
1721 // Check to ensure that Type is not packed
1722 if (STy->isPacked())
1723 GEN_ERROR("Unpacked Initializer to vector type '" +
1724 STy->getDescription() + "'");
1726 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1730 | Types '<' '{' ConstVector '}' '>' {
1731 const StructType *STy = dyn_cast<StructType>($1->get());
1733 GEN_ERROR("Cannot make struct constant with type: '" +
1734 (*$1)->getDescription() + "'");
1736 if ($4->size() != STy->getNumContainedTypes())
1737 GEN_ERROR("Illegal number of initializers for structure type");
1739 // Check to ensure that constants are compatible with the type initializer!
1740 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1741 if ((*$4)[i]->getType() != STy->getElementType(i))
1742 GEN_ERROR("Expected type '" +
1743 STy->getElementType(i)->getDescription() +
1744 "' for element #" + utostr(i) +
1745 " of structure initializer");
1747 // Check to ensure that Type is packed
1748 if (!STy->isPacked())
1749 GEN_ERROR("Vector initializer to non-vector type '" +
1750 STy->getDescription() + "'");
1752 $$ = ConstantStruct::get(STy, *$4);
1753 delete $1; delete $4;
1756 | Types '<' '{' '}' '>' {
1757 if (!UpRefs.empty())
1758 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1759 const StructType *STy = dyn_cast<StructType>($1->get());
1761 GEN_ERROR("Cannot make struct constant with type: '" +
1762 (*$1)->getDescription() + "'");
1764 if (STy->getNumContainedTypes() != 0)
1765 GEN_ERROR("Illegal number of initializers for structure type");
1767 // Check to ensure that Type is packed
1768 if (!STy->isPacked())
1769 GEN_ERROR("Vector initializer to non-vector type '" +
1770 STy->getDescription() + "'");
1772 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1777 if (!UpRefs.empty())
1778 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1779 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1781 GEN_ERROR("Cannot make null pointer constant with type: '" +
1782 (*$1)->getDescription() + "'");
1784 $$ = ConstantPointerNull::get(PTy);
1789 if (!UpRefs.empty())
1790 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1791 $$ = UndefValue::get($1->get());
1795 | Types SymbolicValueRef {
1796 if (!UpRefs.empty())
1797 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1798 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1800 GEN_ERROR("Global const reference must be a pointer type " + (*$1)->getDescription());
1802 // ConstExprs can exist in the body of a function, thus creating
1803 // GlobalValues whenever they refer to a variable. Because we are in
1804 // the context of a function, getExistingVal will search the functions
1805 // symbol table instead of the module symbol table for the global symbol,
1806 // which throws things all off. To get around this, we just tell
1807 // getExistingVal that we are at global scope here.
1809 Function *SavedCurFn = CurFun.CurrentFunction;
1810 CurFun.CurrentFunction = 0;
1812 Value *V = getExistingVal(Ty, $2);
1815 CurFun.CurrentFunction = SavedCurFn;
1817 // If this is an initializer for a constant pointer, which is referencing a
1818 // (currently) undefined variable, create a stub now that shall be replaced
1819 // in the future with the right type of variable.
1822 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1823 const PointerType *PT = cast<PointerType>(Ty);
1825 // First check to see if the forward references value is already created!
1826 PerModuleInfo::GlobalRefsType::iterator I =
1827 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1829 if (I != CurModule.GlobalRefs.end()) {
1830 V = I->second; // Placeholder already exists, use it...
1834 if ($2.Type == ValID::GlobalName)
1835 Name = $2.getName();
1836 else if ($2.Type != ValID::GlobalID)
1837 GEN_ERROR("Invalid reference to global");
1839 // Create the forward referenced global.
1841 if (const FunctionType *FTy =
1842 dyn_cast<FunctionType>(PT->getElementType())) {
1843 GV = Function::Create(FTy, GlobalValue::ExternalWeakLinkage, Name,
1844 CurModule.CurrentModule);
1846 GV = new GlobalVariable(PT->getElementType(), false,
1847 GlobalValue::ExternalWeakLinkage, 0,
1848 Name, CurModule.CurrentModule);
1851 // Keep track of the fact that we have a forward ref to recycle it
1852 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1857 $$ = cast<GlobalValue>(V);
1858 delete $1; // Free the type handle
1862 if (!UpRefs.empty())
1863 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1864 if ($1->get() != $2->getType())
1865 GEN_ERROR("Mismatched types for constant expression: " +
1866 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1871 | Types ZEROINITIALIZER {
1872 if (!UpRefs.empty())
1873 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1874 const Type *Ty = $1->get();
1875 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1876 GEN_ERROR("Cannot create a null initialized value of this type");
1877 $$ = Constant::getNullValue(Ty);
1881 | Types ESINT64VAL { // integral constants
1882 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1883 if (!ConstantInt::isValueValidForType(IT, $2))
1884 GEN_ERROR("Constant value doesn't fit in type");
1885 $$ = ConstantInt::get(IT, $2, true);
1887 GEN_ERROR("integer constant must have integer type");
1892 | Types ESAPINTVAL { // arbitrary precision integer constants
1893 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1894 if ($2->getBitWidth() > IT->getBitWidth())
1895 GEN_ERROR("Constant value does not fit in type");
1896 $2->sextOrTrunc(IT->getBitWidth());
1897 $$ = ConstantInt::get(*$2);
1899 GEN_ERROR("integer constant must have integer type");
1905 | Types EUINT64VAL { // integral constants
1906 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1907 if (!ConstantInt::isValueValidForType(IT, $2))
1908 GEN_ERROR("Constant value doesn't fit in type");
1909 $$ = ConstantInt::get(IT, $2, false);
1911 GEN_ERROR("integer constant must have integer type");
1916 | Types EUAPINTVAL { // arbitrary precision integer constants
1917 if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) {
1918 if ($2->getBitWidth() > IT->getBitWidth())
1919 GEN_ERROR("Constant value does not fit in type");
1920 $2->zextOrTrunc(IT->getBitWidth());
1921 $$ = ConstantInt::get(*$2);
1923 GEN_ERROR("integer constant must have integer type");
1930 | Types TRUETOK { // Boolean constants
1931 if ($1->get() != Type::Int1Ty)
1932 GEN_ERROR("Constant true must have type i1");
1933 $$ = ConstantInt::getTrue();
1937 | Types FALSETOK { // Boolean constants
1938 if ($1->get() != Type::Int1Ty)
1939 GEN_ERROR("Constant false must have type i1");
1940 $$ = ConstantInt::getFalse();
1944 | Types FPVAL { // Floating point constants
1945 if (!ConstantFP::isValueValidForType($1->get(), *$2))
1946 GEN_ERROR("Floating point constant invalid for type");
1948 // Lexer has no type info, so builds all float and double FP constants
1949 // as double. Fix this here. Long double is done right.
1950 if (&$2->getSemantics()==&APFloat::IEEEdouble && $1->get()==Type::FloatTy) {
1952 $2->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven,
1955 $$ = ConstantFP::get(*$2);
1962 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1963 if (!UpRefs.empty())
1964 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1966 const Type *DestTy = $5->get();
1967 if (!CastInst::castIsValid($1, $3, DestTy))
1968 GEN_ERROR("invalid cast opcode for cast from '" +
1969 Val->getType()->getDescription() + "' to '" +
1970 DestTy->getDescription() + "'");
1971 $$ = ConstantExpr::getCast($1, $3, DestTy);
1974 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1975 if (!isa<PointerType>($3->getType()))
1976 GEN_ERROR("GetElementPtr requires a pointer operand");
1979 GetElementPtrInst::getIndexedType($3->getType(), $4->begin(), $4->end());
1981 GEN_ERROR("Index list invalid for constant getelementptr");
1983 SmallVector<Constant*, 8> IdxVec;
1984 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1985 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1986 IdxVec.push_back(C);
1988 GEN_ERROR("Indices to constant getelementptr must be constants");
1992 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1995 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1996 if ($3->getType() != Type::Int1Ty)
1997 GEN_ERROR("Select condition must be of boolean type");
1998 if ($5->getType() != $7->getType())
1999 GEN_ERROR("Select operand types must match");
2000 $$ = ConstantExpr::getSelect($3, $5, $7);
2003 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
2004 if ($3->getType() != $5->getType())
2005 GEN_ERROR("Binary operator types must match");
2007 $$ = ConstantExpr::get($1, $3, $5);
2009 | LogicalOps '(' ConstVal ',' ConstVal ')' {
2010 if ($3->getType() != $5->getType())
2011 GEN_ERROR("Logical operator types must match");
2012 if (!$3->getType()->isInteger()) {
2013 if (!isa<VectorType>($3->getType()) ||
2014 !cast<VectorType>($3->getType())->getElementType()->isInteger())
2015 GEN_ERROR("Logical operator requires integral operands");
2017 $$ = ConstantExpr::get($1, $3, $5);
2020 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2021 if ($4->getType() != $6->getType())
2022 GEN_ERROR("icmp operand types must match");
2023 $$ = ConstantExpr::getICmp($2, $4, $6);
2025 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2026 if ($4->getType() != $6->getType())
2027 GEN_ERROR("fcmp operand types must match");
2028 $$ = ConstantExpr::getFCmp($2, $4, $6);
2030 | VICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2031 if ($4->getType() != $6->getType())
2032 GEN_ERROR("vicmp operand types must match");
2033 $$ = ConstantExpr::getVICmp($2, $4, $6);
2035 | VFCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2036 if ($4->getType() != $6->getType())
2037 GEN_ERROR("vfcmp operand types must match");
2038 $$ = ConstantExpr::getVFCmp($2, $4, $6);
2040 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
2041 if (!ExtractElementInst::isValidOperands($3, $5))
2042 GEN_ERROR("Invalid extractelement operands");
2043 $$ = ConstantExpr::getExtractElement($3, $5);
2046 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2047 if (!InsertElementInst::isValidOperands($3, $5, $7))
2048 GEN_ERROR("Invalid insertelement operands");
2049 $$ = ConstantExpr::getInsertElement($3, $5, $7);
2052 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2053 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
2054 GEN_ERROR("Invalid shufflevector operands");
2055 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
2058 | EXTRACTVALUE '(' ConstVal ConstantIndexList ')' {
2059 if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType()))
2060 GEN_ERROR("ExtractValue requires an aggregate operand");
2062 $$ = ConstantExpr::getExtractValue($3, &(*$4)[0], $4->size());
2066 | INSERTVALUE '(' ConstVal ',' ConstVal ConstantIndexList ')' {
2067 if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType()))
2068 GEN_ERROR("InsertValue requires an aggregate operand");
2070 $$ = ConstantExpr::getInsertValue($3, $5, &(*$6)[0], $6->size());
2076 // ConstVector - A list of comma separated constants.
2077 ConstVector : ConstVector ',' ConstVal {
2078 ($$ = $1)->push_back($3);
2082 $$ = new std::vector<Constant*>();
2088 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
2089 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
2092 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
2094 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
2095 AliaseeRef : ResultTypes SymbolicValueRef {
2096 const Type* VTy = $1->get();
2097 Value *V = getVal(VTy, $2);
2099 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
2101 GEN_ERROR("Aliases can be created only to global values");
2107 | BITCAST '(' AliaseeRef TO Types ')' {
2109 const Type *DestTy = $5->get();
2110 if (!CastInst::castIsValid($1, $3, DestTy))
2111 GEN_ERROR("invalid cast opcode for cast from '" +
2112 Val->getType()->getDescription() + "' to '" +
2113 DestTy->getDescription() + "'");
2115 $$ = ConstantExpr::getCast($1, $3, DestTy);
2120 //===----------------------------------------------------------------------===//
2121 // Rules to match Modules
2122 //===----------------------------------------------------------------------===//
2124 // Module rule: Capture the result of parsing the whole file into a result
2129 $$ = ParserResult = CurModule.CurrentModule;
2130 CurModule.ModuleDone();
2134 $$ = ParserResult = CurModule.CurrentModule;
2135 CurModule.ModuleDone();
2142 | DefinitionList Definition
2146 : DEFINE { CurFun.isDeclare = false; } Function {
2147 CurFun.FunctionDone();
2150 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2153 | MODULE ASM_TOK AsmBlock {
2156 | OptLocalAssign TYPE Types {
2157 if (!UpRefs.empty())
2158 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2159 // Eagerly resolve types. This is not an optimization, this is a
2160 // requirement that is due to the fact that we could have this:
2162 // %list = type { %list * }
2163 // %list = type { %list * } ; repeated type decl
2165 // If types are not resolved eagerly, then the two types will not be
2166 // determined to be the same type!
2168 ResolveTypeTo($1, *$3);
2170 if (!setTypeName(*$3, $1) && !$1) {
2172 // If this is a named type that is not a redefinition, add it to the slot
2174 CurModule.Types.push_back(*$3);
2180 | OptLocalAssign TYPE VOID {
2181 ResolveTypeTo($1, $3);
2183 if (!setTypeName($3, $1) && !$1) {
2185 // If this is a named type that is not a redefinition, add it to the slot
2187 CurModule.Types.push_back($3);
2191 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal
2193 /* "Externally Visible" Linkage */
2195 GEN_ERROR("Global value initializer is not a constant");
2196 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2197 $2, $4, $5->getType(), $5, $3, $6);
2199 } GlobalVarAttributes {
2202 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2203 ConstVal OptAddrSpace {
2205 GEN_ERROR("Global value initializer is not a constant");
2206 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4, $7);
2208 } GlobalVarAttributes {
2211 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2212 Types OptAddrSpace {
2213 if (!UpRefs.empty())
2214 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2215 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4, $7);
2218 } GlobalVarAttributes {
2222 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2229 GEN_ERROR("Alias name cannot be empty");
2231 Constant* Aliasee = $5;
2233 GEN_ERROR(std::string("Invalid aliasee for alias: ") + Name);
2235 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2236 CurModule.CurrentModule);
2237 GA->setVisibility($2);
2238 InsertValue(GA, CurModule.Values);
2241 // If there was a forward reference of this alias, resolve it now.
2245 ID = ValID::createGlobalName(Name);
2247 ID = ValID::createGlobalID(CurModule.Values.size()-1);
2249 if (GlobalValue *FWGV =
2250 CurModule.GetForwardRefForGlobal(GA->getType(), ID)) {
2251 // Replace uses of the fwdref with the actual alias.
2252 FWGV->replaceAllUsesWith(GA);
2253 if (GlobalVariable *GV = dyn_cast<GlobalVariable>(FWGV))
2254 GV->eraseFromParent();
2256 cast<Function>(FWGV)->eraseFromParent();
2262 | TARGET TargetDefinition {
2265 | DEPLIBS '=' LibrariesDefinition {
2271 AsmBlock : STRINGCONSTANT {
2272 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2273 if (AsmSoFar.empty())
2274 CurModule.CurrentModule->setModuleInlineAsm(*$1);
2276 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+*$1);
2281 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2282 CurModule.CurrentModule->setTargetTriple(*$3);
2285 | DATALAYOUT '=' STRINGCONSTANT {
2286 CurModule.CurrentModule->setDataLayout(*$3);
2290 LibrariesDefinition : '[' LibList ']';
2292 LibList : LibList ',' STRINGCONSTANT {
2293 CurModule.CurrentModule->addLibrary(*$3);
2298 CurModule.CurrentModule->addLibrary(*$1);
2302 | /* empty: end of list */ {
2307 //===----------------------------------------------------------------------===//
2308 // Rules to match Function Headers
2309 //===----------------------------------------------------------------------===//
2311 ArgListH : ArgListH ',' Types OptAttributes OptLocalName {
2312 if (!UpRefs.empty())
2313 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2314 if (!(*$3)->isFirstClassType())
2315 GEN_ERROR("Argument types must be first-class");
2316 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2321 | Types OptAttributes OptLocalName {
2322 if (!UpRefs.empty())
2323 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2324 if (!(*$1)->isFirstClassType())
2325 GEN_ERROR("Argument types must be first-class");
2326 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2327 $$ = new ArgListType;
2332 ArgList : ArgListH {
2336 | ArgListH ',' DOTDOTDOT {
2338 struct ArgListEntry E;
2339 E.Ty = new PATypeHolder(Type::VoidTy);
2341 E.Attrs = Attribute::None;
2346 $$ = new ArgListType;
2347 struct ArgListEntry E;
2348 E.Ty = new PATypeHolder(Type::VoidTy);
2350 E.Attrs = Attribute::None;
2359 FunctionHeaderH : OptCallingConv OptRetAttrs ResultTypes GlobalName '(' ArgList ')'
2360 OptFuncAttrs OptSection OptAlign OptGC {
2361 std::string FunctionName(*$4);
2362 delete $4; // Free strdup'd memory!
2364 // Check the function result for abstractness if this is a define. We should
2365 // have no abstract types at this point
2366 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($3))
2367 GEN_ERROR("Reference to abstract result: "+ $3->get()->getDescription());
2369 if (!FunctionType::isValidReturnType(*$3))
2370 GEN_ERROR("Invalid result type for LLVM function");
2372 std::vector<const Type*> ParamTypeList;
2373 SmallVector<AttributeWithIndex, 8> Attrs;
2374 //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
2376 Attributes RetAttrs = $2;
2377 if ($8 != Attribute::None) {
2378 if ($8 & Attribute::ZExt) {
2379 RetAttrs = RetAttrs | Attribute::ZExt;
2380 $8 = $8 ^ Attribute::ZExt;
2382 if ($8 & Attribute::SExt) {
2383 RetAttrs = RetAttrs | Attribute::SExt;
2384 $8 = $8 ^ Attribute::SExt;
2386 if ($8 & Attribute::InReg) {
2387 RetAttrs = RetAttrs | Attribute::InReg;
2388 $8 = $8 ^ Attribute::InReg;
2391 if (RetAttrs != Attribute::None)
2392 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
2393 if ($6) { // If there are arguments...
2395 for (ArgListType::iterator I = $6->begin(); I != $6->end(); ++I, ++index) {
2396 const Type* Ty = I->Ty->get();
2397 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2398 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2399 ParamTypeList.push_back(Ty);
2400 if (Ty != Type::VoidTy && I->Attrs != Attribute::None)
2401 Attrs.push_back(AttributeWithIndex::get(index, I->Attrs));
2404 if ($8 != Attribute::None)
2405 Attrs.push_back(AttributeWithIndex::get(~0, $8));
2407 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2408 if (isVarArg) ParamTypeList.pop_back();
2412 PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
2414 FunctionType *FT = FunctionType::get(*$3, ParamTypeList, isVarArg);
2415 const PointerType *PFT = PointerType::getUnqual(FT);
2419 if (!FunctionName.empty()) {
2420 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2422 ID = ValID::createGlobalID(CurModule.Values.size());
2426 // See if this function was forward referenced. If so, recycle the object.
2427 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2428 // Move the function to the end of the list, from whereever it was
2429 // previously inserted.
2430 Fn = cast<Function>(FWRef);
2431 assert(Fn->getAttributes().isEmpty() &&
2432 "Forward reference has parameter attributes!");
2433 CurModule.CurrentModule->getFunctionList().remove(Fn);
2434 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2435 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2436 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2437 if (Fn->getFunctionType() != FT ) {
2438 // The existing function doesn't have the same type. This is an overload
2440 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2441 } else if (Fn->getAttributes() != PAL) {
2442 // The existing function doesn't have the same parameter attributes.
2443 // This is an overload error.
2444 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2445 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2446 // Neither the existing or the current function is a declaration and they
2447 // have the same name and same type. Clearly this is a redefinition.
2448 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2449 } else if (Fn->isDeclaration()) {
2450 // Make sure to strip off any argument names so we can't get conflicts.
2451 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2455 } else { // Not already defined?
2456 Fn = Function::Create(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2457 CurModule.CurrentModule);
2458 InsertValue(Fn, CurModule.Values);
2462 CurFun.FunctionStart(Fn);
2464 if (CurFun.isDeclare) {
2465 // If we have declaration, always overwrite linkage. This will allow us to
2466 // correctly handle cases, when pointer to function is passed as argument to
2467 // another function.
2468 Fn->setLinkage(CurFun.Linkage);
2469 Fn->setVisibility(CurFun.Visibility);
2471 Fn->setCallingConv($1);
2472 Fn->setAttributes(PAL);
2473 Fn->setAlignment($10);
2475 Fn->setSection(*$9);
2479 Fn->setGC($11->c_str());
2483 // Add all of the arguments we parsed to the function...
2484 if ($6) { // Is null if empty...
2485 if (isVarArg) { // Nuke the last entry
2486 assert($6->back().Ty->get() == Type::VoidTy && $6->back().Name == 0 &&
2487 "Not a varargs marker!");
2488 delete $6->back().Ty;
2489 $6->pop_back(); // Delete the last entry
2491 Function::arg_iterator ArgIt = Fn->arg_begin();
2492 Function::arg_iterator ArgEnd = Fn->arg_end();
2494 for (ArgListType::iterator I = $6->begin();
2495 I != $6->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2496 delete I->Ty; // Delete the typeholder...
2497 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2503 delete $6; // We're now done with the argument list
2508 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2510 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2511 $$ = CurFun.CurrentFunction;
2513 // Make sure that we keep track of the linkage type even if there was a
2514 // previous "declare".
2516 $$->setVisibility($2);
2519 END : ENDTOK | '}'; // Allow end of '}' to end a function
2521 Function : BasicBlockList END {
2526 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2527 CurFun.CurrentFunction->setLinkage($1);
2528 CurFun.CurrentFunction->setVisibility($2);
2529 $$ = CurFun.CurrentFunction;
2530 CurFun.FunctionDone();
2534 //===----------------------------------------------------------------------===//
2535 // Rules to match Basic Blocks
2536 //===----------------------------------------------------------------------===//
2538 OptSideEffect : /* empty */ {
2547 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2548 $$ = ValID::create($1);
2552 $$ = ValID::create($1);
2555 | ESAPINTVAL { // arbitrary precision integer constants
2556 $$ = ValID::create(*$1, true);
2560 | EUAPINTVAL { // arbitrary precision integer constants
2561 $$ = ValID::create(*$1, false);
2565 | FPVAL { // Perhaps it's an FP constant?
2566 $$ = ValID::create($1);
2570 $$ = ValID::create(ConstantInt::getTrue());
2574 $$ = ValID::create(ConstantInt::getFalse());
2578 $$ = ValID::createNull();
2582 $$ = ValID::createUndef();
2585 | ZEROINITIALIZER { // A vector zero constant.
2586 $$ = ValID::createZeroInit();
2589 | '<' ConstVector '>' { // Nonempty unsized packed vector
2590 const Type *ETy = (*$2)[0]->getType();
2591 unsigned NumElements = $2->size();
2593 if (!ETy->isInteger() && !ETy->isFloatingPoint())
2594 GEN_ERROR("Invalid vector element type: " + ETy->getDescription());
2596 VectorType* pt = VectorType::get(ETy, NumElements);
2597 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt));
2599 // Verify all elements are correct type!
2600 for (unsigned i = 0; i < $2->size(); i++) {
2601 if (ETy != (*$2)[i]->getType())
2602 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2603 ETy->getDescription() +"' as required!\nIt is of type '" +
2604 (*$2)[i]->getType()->getDescription() + "'.");
2607 $$ = ValID::create(ConstantVector::get(pt, *$2));
2608 delete PTy; delete $2;
2611 | '[' ConstVector ']' { // Nonempty unsized arr
2612 const Type *ETy = (*$2)[0]->getType();
2613 uint64_t NumElements = $2->size();
2615 if (!ETy->isFirstClassType())
2616 GEN_ERROR("Invalid array element type: " + ETy->getDescription());
2618 ArrayType *ATy = ArrayType::get(ETy, NumElements);
2619 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(ATy));
2621 // Verify all elements are correct type!
2622 for (unsigned i = 0; i < $2->size(); i++) {
2623 if (ETy != (*$2)[i]->getType())
2624 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2625 ETy->getDescription() +"' as required!\nIt is of type '"+
2626 (*$2)[i]->getType()->getDescription() + "'.");
2629 $$ = ValID::create(ConstantArray::get(ATy, *$2));
2630 delete PTy; delete $2;
2634 // Use undef instead of an array because it's inconvenient to determine
2635 // the element type at this point, there being no elements to examine.
2636 $$ = ValID::createUndef();
2639 | 'c' STRINGCONSTANT {
2640 uint64_t NumElements = $2->length();
2641 const Type *ETy = Type::Int8Ty;
2643 ArrayType *ATy = ArrayType::get(ETy, NumElements);
2645 std::vector<Constant*> Vals;
2646 for (unsigned i = 0; i < $2->length(); ++i)
2647 Vals.push_back(ConstantInt::get(ETy, (*$2)[i]));
2649 $$ = ValID::create(ConstantArray::get(ATy, Vals));
2652 | '{' ConstVector '}' {
2653 std::vector<const Type*> Elements($2->size());
2654 for (unsigned i = 0, e = $2->size(); i != e; ++i)
2655 Elements[i] = (*$2)[i]->getType();
2657 const StructType *STy = StructType::get(Elements);
2658 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy));
2660 $$ = ValID::create(ConstantStruct::get(STy, *$2));
2661 delete PTy; delete $2;
2665 const StructType *STy = StructType::get(std::vector<const Type*>());
2666 $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>()));
2669 | '<' '{' ConstVector '}' '>' {
2670 std::vector<const Type*> Elements($3->size());
2671 for (unsigned i = 0, e = $3->size(); i != e; ++i)
2672 Elements[i] = (*$3)[i]->getType();
2674 const StructType *STy = StructType::get(Elements, /*isPacked=*/true);
2675 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy));
2677 $$ = ValID::create(ConstantStruct::get(STy, *$3));
2678 delete PTy; delete $3;
2682 const StructType *STy = StructType::get(std::vector<const Type*>(),
2684 $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>()));
2688 $$ = ValID::create($1);
2691 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2692 $$ = ValID::createInlineAsm(*$3, *$5, $2);
2698 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2701 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2702 $$ = ValID::createLocalID($1);
2706 $$ = ValID::createGlobalID($1);
2709 | LocalName { // Is it a named reference...?
2710 $$ = ValID::createLocalName(*$1);
2714 | GlobalName { // Is it a named reference...?
2715 $$ = ValID::createGlobalName(*$1);
2720 // ValueRef - A reference to a definition... either constant or symbolic
2721 ValueRef : SymbolicValueRef | ConstValueRef;
2724 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2725 // type immediately preceeds the value reference, and allows complex constant
2726 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2727 ResolvedVal : Types ValueRef {
2728 if (!UpRefs.empty())
2729 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2730 $$ = getVal(*$1, $2);
2736 ReturnedVal : ResolvedVal {
2737 $$ = new std::vector<Value *>();
2741 | ReturnedVal ',' ResolvedVal {
2742 ($$=$1)->push_back($3);
2746 BasicBlockList : BasicBlockList BasicBlock {
2750 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2756 // Basic blocks are terminated by branching instructions:
2757 // br, br/cc, switch, ret
2759 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2760 setValueName($3, $2);
2763 $1->getInstList().push_back($3);
2768 BasicBlock : InstructionList LocalNumber BBTerminatorInst {
2770 int ValNum = InsertValue($3);
2771 if (ValNum != (int)$2)
2772 GEN_ERROR("Result value number %" + utostr($2) +
2773 " is incorrect, expected %" + utostr((unsigned)ValNum));
2775 $1->getInstList().push_back($3);
2781 InstructionList : InstructionList Inst {
2782 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2783 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2784 if (CI2->getParent() == 0)
2785 $1->getInstList().push_back(CI2);
2786 $1->getInstList().push_back($2);
2790 | /* empty */ { // Empty space between instruction lists
2791 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2794 | LABELSTR { // Labelled (named) basic block
2795 $$ = defineBBVal(ValID::createLocalName(*$1));
2802 RET ReturnedVal { // Return with a result...
2803 ValueList &VL = *$2;
2804 assert(!VL.empty() && "Invalid ret operands!");
2805 const Type *ReturnType = CurFun.CurrentFunction->getReturnType();
2806 if (VL.size() > 1 ||
2807 (isa<StructType>(ReturnType) &&
2808 (VL.empty() || VL[0]->getType() != ReturnType))) {
2809 Value *RV = UndefValue::get(ReturnType);
2810 for (unsigned i = 0, e = VL.size(); i != e; ++i) {
2811 Instruction *I = InsertValueInst::Create(RV, VL[i], i, "mrv");
2812 ($<BasicBlockVal>-1)->getInstList().push_back(I);
2815 $$ = ReturnInst::Create(RV);
2817 $$ = ReturnInst::Create(VL[0]);
2822 | RET VOID { // Return with no result...
2823 $$ = ReturnInst::Create();
2826 | BR LABEL ValueRef { // Unconditional Branch...
2827 BasicBlock* tmpBB = getBBVal($3);
2829 $$ = BranchInst::Create(tmpBB);
2830 } // Conditional Branch...
2831 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2832 if (cast<IntegerType>($2)->getBitWidth() != 1)
2833 GEN_ERROR("Branch condition must have type i1");
2834 BasicBlock* tmpBBA = getBBVal($6);
2836 BasicBlock* tmpBBB = getBBVal($9);
2838 Value* tmpVal = getVal(Type::Int1Ty, $3);
2840 $$ = BranchInst::Create(tmpBBA, tmpBBB, tmpVal);
2842 | SWITCH INTTYPE ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2843 Value* tmpVal = getVal($2, $3);
2845 BasicBlock* tmpBB = getBBVal($6);
2847 SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, $8->size());
2850 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2852 for (; I != E; ++I) {
2853 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2854 S->addCase(CI, I->second);
2856 GEN_ERROR("Switch case is constant, but not a simple integer");
2861 | SWITCH INTTYPE ValueRef ',' LABEL ValueRef '[' ']' {
2862 Value* tmpVal = getVal($2, $3);
2864 BasicBlock* tmpBB = getBBVal($6);
2866 SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, 0);
2870 | INVOKE OptCallingConv OptRetAttrs ResultTypes ValueRef '(' ParamList ')'
2871 OptFuncAttrs TO LABEL ValueRef UNWIND LABEL ValueRef {
2873 // Handle the short syntax
2874 const PointerType *PFTy = 0;
2875 const FunctionType *Ty = 0;
2876 if (!(PFTy = dyn_cast<PointerType>($4->get())) ||
2877 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2878 // Pull out the types of all of the arguments...
2879 std::vector<const Type*> ParamTypes;
2880 ParamList::iterator I = $7->begin(), E = $7->end();
2881 for (; I != E; ++I) {
2882 const Type *Ty = I->Val->getType();
2883 if (Ty == Type::VoidTy)
2884 GEN_ERROR("Short call syntax cannot be used with varargs");
2885 ParamTypes.push_back(Ty);
2888 if (!FunctionType::isValidReturnType(*$4))
2889 GEN_ERROR("Invalid result type for LLVM function");
2891 Ty = FunctionType::get($4->get(), ParamTypes, false);
2892 PFTy = PointerType::getUnqual(Ty);
2897 Value *V = getVal(PFTy, $5); // Get the function we're calling...
2899 BasicBlock *Normal = getBBVal($12);
2901 BasicBlock *Except = getBBVal($15);
2904 SmallVector<AttributeWithIndex, 8> Attrs;
2905 //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
2907 Attributes RetAttrs = $3;
2908 if ($9 != Attribute::None) {
2909 if ($9 & Attribute::ZExt) {
2910 RetAttrs = RetAttrs | Attribute::ZExt;
2911 $9 = $9 ^ Attribute::ZExt;
2913 if ($9 & Attribute::SExt) {
2914 RetAttrs = RetAttrs | Attribute::SExt;
2915 $9 = $9 ^ Attribute::SExt;
2917 if ($9 & Attribute::InReg) {
2918 RetAttrs = RetAttrs | Attribute::InReg;
2919 $9 = $9 ^ Attribute::InReg;
2922 if (RetAttrs != Attribute::None)
2923 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
2925 // Check the arguments
2927 if ($7->empty()) { // Has no arguments?
2928 // Make sure no arguments is a good thing!
2929 if (Ty->getNumParams() != 0)
2930 GEN_ERROR("No arguments passed to a function that "
2931 "expects arguments");
2932 } else { // Has arguments?
2933 // Loop through FunctionType's arguments and ensure they are specified
2935 FunctionType::param_iterator I = Ty->param_begin();
2936 FunctionType::param_iterator E = Ty->param_end();
2937 ParamList::iterator ArgI = $7->begin(), ArgE = $7->end();
2940 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
2941 if (ArgI->Val->getType() != *I)
2942 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2943 (*I)->getDescription() + "'");
2944 Args.push_back(ArgI->Val);
2945 if (ArgI->Attrs != Attribute::None)
2946 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
2949 if (Ty->isVarArg()) {
2951 for (; ArgI != ArgE; ++ArgI, ++index) {
2952 Args.push_back(ArgI->Val); // push the remaining varargs
2953 if (ArgI->Attrs != Attribute::None)
2954 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
2956 } else if (I != E || ArgI != ArgE)
2957 GEN_ERROR("Invalid number of parameters detected");
2959 if ($9 != Attribute::None)
2960 Attrs.push_back(AttributeWithIndex::get(~0, $9));
2963 PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
2965 // Create the InvokeInst
2966 InvokeInst *II = InvokeInst::Create(V, Normal, Except,
2967 Args.begin(), Args.end());
2968 II->setCallingConv($2);
2969 II->setAttributes(PAL);
2975 $$ = new UnwindInst();
2979 $$ = new UnreachableInst();
2985 JumpTable : JumpTable INTTYPE ConstValueRef ',' LABEL ValueRef {
2987 Constant *V = cast<Constant>(getExistingVal($2, $3));
2990 GEN_ERROR("May only switch on a constant pool value");
2992 BasicBlock* tmpBB = getBBVal($6);
2994 $$->push_back(std::make_pair(V, tmpBB));
2996 | INTTYPE ConstValueRef ',' LABEL ValueRef {
2997 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2998 Constant *V = cast<Constant>(getExistingVal($1, $2));
3002 GEN_ERROR("May only switch on a constant pool value");
3004 BasicBlock* tmpBB = getBBVal($5);
3006 $$->push_back(std::make_pair(V, tmpBB));
3009 Inst : OptLocalAssign InstVal {
3010 // Is this definition named?? if so, assign the name...
3011 setValueName($2, $1);
3018 Inst : LocalNumber InstVal {
3020 int ValNum = InsertValue($2);
3022 if (ValNum != (int)$1)
3023 GEN_ERROR("Result value number %" + utostr($1) +
3024 " is incorrect, expected %" + utostr((unsigned)ValNum));
3031 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
3032 if (!UpRefs.empty())
3033 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
3034 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
3035 Value* tmpVal = getVal(*$1, $3);
3037 BasicBlock* tmpBB = getBBVal($5);
3039 $$->push_back(std::make_pair(tmpVal, tmpBB));
3042 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
3044 Value* tmpVal = getVal($1->front().first->getType(), $4);
3046 BasicBlock* tmpBB = getBBVal($6);
3048 $1->push_back(std::make_pair(tmpVal, tmpBB));
3052 ParamList : Types OptAttributes ValueRef OptAttributes {
3053 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3054 if (!UpRefs.empty())
3055 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
3056 // Used for call and invoke instructions
3057 $$ = new ParamList();
3058 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getVal($1->get(), $3);
3063 | LABEL OptAttributes ValueRef OptAttributes {
3064 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3065 // Labels are only valid in ASMs
3066 $$ = new ParamList();
3067 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getBBVal($3);
3071 | ParamList ',' Types OptAttributes ValueRef OptAttributes {
3072 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3073 if (!UpRefs.empty())
3074 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3076 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getVal($3->get(), $5);
3081 | ParamList ',' LABEL OptAttributes ValueRef OptAttributes {
3082 // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0
3084 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getBBVal($5);
3088 | /*empty*/ { $$ = new ParamList(); };
3090 IndexList // Used for gep instructions and constant expressions
3091 : /*empty*/ { $$ = new std::vector<Value*>(); }
3092 | IndexList ',' ResolvedVal {
3099 ConstantIndexList // Used for insertvalue and extractvalue instructions
3101 $$ = new std::vector<unsigned>();
3102 if ((unsigned)$2 != $2)
3103 GEN_ERROR("Index " + utostr($2) + " is not valid for insertvalue or extractvalue.");
3106 | ConstantIndexList ',' EUINT64VAL {
3108 if ((unsigned)$3 != $3)
3109 GEN_ERROR("Index " + utostr($3) + " is not valid for insertvalue or extractvalue.");
3115 OptTailCall : TAIL CALL {
3124 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
3125 if (!UpRefs.empty())
3126 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3127 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
3128 !isa<VectorType>((*$2).get()))
3130 "Arithmetic operator requires integer, FP, or packed operands");
3131 Value* val1 = getVal(*$2, $3);
3133 Value* val2 = getVal(*$2, $5);
3135 $$ = BinaryOperator::Create($1, val1, val2);
3137 GEN_ERROR("binary operator returned null");
3140 | LogicalOps Types ValueRef ',' ValueRef {
3141 if (!UpRefs.empty())
3142 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3143 if (!(*$2)->isInteger()) {
3144 if (!isa<VectorType>($2->get()) ||
3145 !cast<VectorType>($2->get())->getElementType()->isInteger())
3146 GEN_ERROR("Logical operator requires integral operands");
3148 Value* tmpVal1 = getVal(*$2, $3);
3150 Value* tmpVal2 = getVal(*$2, $5);
3152 $$ = BinaryOperator::Create($1, tmpVal1, tmpVal2);
3154 GEN_ERROR("binary operator returned null");
3157 | ICMP IPredicates Types ValueRef ',' ValueRef {
3158 if (!UpRefs.empty())
3159 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3160 Value* tmpVal1 = getVal(*$3, $4);
3162 Value* tmpVal2 = getVal(*$3, $6);
3164 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3166 GEN_ERROR("icmp operator returned null");
3169 | FCMP FPredicates Types ValueRef ',' ValueRef {
3170 if (!UpRefs.empty())
3171 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3172 Value* tmpVal1 = getVal(*$3, $4);
3174 Value* tmpVal2 = getVal(*$3, $6);
3176 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3178 GEN_ERROR("fcmp operator returned null");
3181 | VICMP IPredicates Types ValueRef ',' ValueRef {
3182 if (!UpRefs.empty())
3183 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3184 if (!isa<VectorType>((*$3).get()))
3185 GEN_ERROR("Scalar types not supported by vicmp instruction");
3186 Value* tmpVal1 = getVal(*$3, $4);
3188 Value* tmpVal2 = getVal(*$3, $6);
3190 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3192 GEN_ERROR("vicmp operator returned null");
3195 | VFCMP FPredicates Types ValueRef ',' ValueRef {
3196 if (!UpRefs.empty())
3197 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3198 if (!isa<VectorType>((*$3).get()))
3199 GEN_ERROR("Scalar types not supported by vfcmp instruction");
3200 Value* tmpVal1 = getVal(*$3, $4);
3202 Value* tmpVal2 = getVal(*$3, $6);
3204 $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2);
3206 GEN_ERROR("vfcmp operator returned null");
3209 | CastOps ResolvedVal TO Types {
3210 if (!UpRefs.empty())
3211 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
3213 const Type* DestTy = $4->get();
3214 if (!CastInst::castIsValid($1, Val, DestTy))
3215 GEN_ERROR("invalid cast opcode for cast from '" +
3216 Val->getType()->getDescription() + "' to '" +
3217 DestTy->getDescription() + "'");
3218 $$ = CastInst::Create($1, Val, DestTy);
3221 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3222 if (isa<VectorType>($2->getType())) {
3224 if (!isa<VectorType>($4->getType())
3225 || !isa<VectorType>($6->getType()) )
3226 GEN_ERROR("vector select value types must be vector types");
3227 const VectorType* cond_type = cast<VectorType>($2->getType());
3228 const VectorType* select_type = cast<VectorType>($4->getType());
3229 if (cond_type->getElementType() != Type::Int1Ty)
3230 GEN_ERROR("vector select condition element type must be boolean");
3231 if (cond_type->getNumElements() != select_type->getNumElements())
3232 GEN_ERROR("vector select number of elements must be the same");
3234 if ($2->getType() != Type::Int1Ty)
3235 GEN_ERROR("select condition must be boolean");
3237 if ($4->getType() != $6->getType())
3238 GEN_ERROR("select value types must match");
3239 $$ = SelectInst::Create($2, $4, $6);
3242 | VAARG ResolvedVal ',' Types {
3243 if (!UpRefs.empty())
3244 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
3245 $$ = new VAArgInst($2, *$4);
3249 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
3250 if (!ExtractElementInst::isValidOperands($2, $4))
3251 GEN_ERROR("Invalid extractelement operands");
3252 $$ = new ExtractElementInst($2, $4);
3255 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3256 if (!InsertElementInst::isValidOperands($2, $4, $6))
3257 GEN_ERROR("Invalid insertelement operands");
3258 $$ = InsertElementInst::Create($2, $4, $6);
3261 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3262 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
3263 GEN_ERROR("Invalid shufflevector operands");
3264 $$ = new ShuffleVectorInst($2, $4, $6);
3268 const Type *Ty = $2->front().first->getType();
3269 if (!Ty->isFirstClassType())
3270 GEN_ERROR("PHI node operands must be of first class type");
3271 $$ = PHINode::Create(Ty);
3272 ((PHINode*)$$)->reserveOperandSpace($2->size());
3273 while ($2->begin() != $2->end()) {
3274 if ($2->front().first->getType() != Ty)
3275 GEN_ERROR("All elements of a PHI node must be of the same type");
3276 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
3279 delete $2; // Free the list...
3282 | OptTailCall OptCallingConv OptRetAttrs ResultTypes ValueRef '(' ParamList ')'
3285 // Handle the short syntax
3286 const PointerType *PFTy = 0;
3287 const FunctionType *Ty = 0;
3288 if (!(PFTy = dyn_cast<PointerType>($4->get())) ||
3289 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3290 // Pull out the types of all of the arguments...
3291 std::vector<const Type*> ParamTypes;
3292 ParamList::iterator I = $7->begin(), E = $7->end();
3293 for (; I != E; ++I) {
3294 const Type *Ty = I->Val->getType();
3295 if (Ty == Type::VoidTy)
3296 GEN_ERROR("Short call syntax cannot be used with varargs");
3297 ParamTypes.push_back(Ty);
3300 if (!FunctionType::isValidReturnType(*$4))
3301 GEN_ERROR("Invalid result type for LLVM function");
3303 Ty = FunctionType::get($4->get(), ParamTypes, false);
3304 PFTy = PointerType::getUnqual(Ty);
3307 Value *V = getVal(PFTy, $5); // Get the function we're calling...
3310 // Check for call to invalid intrinsic to avoid crashing later.
3311 if (Function *theF = dyn_cast<Function>(V)) {
3312 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
3313 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
3314 !theF->getIntrinsicID(true))
3315 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
3316 theF->getName() + "'");
3319 // Set up the Attributes for the function
3320 SmallVector<AttributeWithIndex, 8> Attrs;
3321 //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function
3323 Attributes RetAttrs = $3;
3324 if ($9 != Attribute::None) {
3325 if ($9 & Attribute::ZExt) {
3326 RetAttrs = RetAttrs | Attribute::ZExt;
3327 $9 = $9 ^ Attribute::ZExt;
3329 if ($9 & Attribute::SExt) {
3330 RetAttrs = RetAttrs | Attribute::SExt;
3331 $9 = $9 ^ Attribute::SExt;
3333 if ($9 & Attribute::InReg) {
3334 RetAttrs = RetAttrs | Attribute::InReg;
3335 $9 = $9 ^ Attribute::InReg;
3338 if (RetAttrs != Attribute::None)
3339 Attrs.push_back(AttributeWithIndex::get(0, RetAttrs));
3341 // Check the arguments
3343 if ($7->empty()) { // Has no arguments?
3344 // Make sure no arguments is a good thing!
3345 if (Ty->getNumParams() != 0)
3346 GEN_ERROR("No arguments passed to a function that "
3347 "expects arguments");
3348 } else { // Has arguments?
3349 // Loop through FunctionType's arguments and ensure they are specified
3350 // correctly. Also, gather any parameter attributes.
3351 FunctionType::param_iterator I = Ty->param_begin();
3352 FunctionType::param_iterator E = Ty->param_end();
3353 ParamList::iterator ArgI = $7->begin(), ArgE = $7->end();
3356 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
3357 if (ArgI->Val->getType() != *I)
3358 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
3359 (*I)->getDescription() + "'");
3360 Args.push_back(ArgI->Val);
3361 if (ArgI->Attrs != Attribute::None)
3362 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
3364 if (Ty->isVarArg()) {
3366 for (; ArgI != ArgE; ++ArgI, ++index) {
3367 Args.push_back(ArgI->Val); // push the remaining varargs
3368 if (ArgI->Attrs != Attribute::None)
3369 Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs));
3371 } else if (I != E || ArgI != ArgE)
3372 GEN_ERROR("Invalid number of parameters detected");
3374 if ($9 != Attribute::None)
3375 Attrs.push_back(AttributeWithIndex::get(~0, $9));
3377 // Finish off the Attributes and check them
3380 PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());
3382 // Create the call node
3383 CallInst *CI = CallInst::Create(V, Args.begin(), Args.end());
3384 CI->setTailCall($1);
3385 CI->setCallingConv($2);
3386 CI->setAttributes(PAL);
3397 OptVolatile : VOLATILE {
3408 MemoryInst : MALLOC Types OptCAlign {
3409 if (!UpRefs.empty())
3410 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3411 $$ = new MallocInst(*$2, 0, $3);
3415 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
3416 if (!UpRefs.empty())
3417 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3418 if ($4 != Type::Int32Ty)
3419 GEN_ERROR("Malloc array size is not a 32-bit integer!");
3420 Value* tmpVal = getVal($4, $5);
3422 $$ = new MallocInst(*$2, tmpVal, $6);
3425 | ALLOCA Types OptCAlign {
3426 if (!UpRefs.empty())
3427 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3428 $$ = new AllocaInst(*$2, 0, $3);
3432 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
3433 if (!UpRefs.empty())
3434 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3435 if ($4 != Type::Int32Ty)
3436 GEN_ERROR("Alloca array size is not a 32-bit integer!");
3437 Value* tmpVal = getVal($4, $5);
3439 $$ = new AllocaInst(*$2, tmpVal, $6);
3442 | FREE ResolvedVal {
3443 if (!isa<PointerType>($2->getType()))
3444 GEN_ERROR("Trying to free nonpointer type " +
3445 $2->getType()->getDescription() + "");
3446 $$ = new FreeInst($2);
3450 | OptVolatile LOAD Types ValueRef OptCAlign {
3451 if (!UpRefs.empty())
3452 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3453 if (!isa<PointerType>($3->get()))
3454 GEN_ERROR("Can't load from nonpointer type: " +
3455 (*$3)->getDescription());
3456 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3457 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3458 (*$3)->getDescription());
3459 Value* tmpVal = getVal(*$3, $4);
3461 $$ = new LoadInst(tmpVal, "", $1, $5);
3464 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3465 if (!UpRefs.empty())
3466 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3467 const PointerType *PT = dyn_cast<PointerType>($5->get());
3469 GEN_ERROR("Can't store to a nonpointer type: " +
3470 (*$5)->getDescription());
3471 const Type *ElTy = PT->getElementType();
3472 if (ElTy != $3->getType())
3473 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3474 "' into space of type '" + ElTy->getDescription() + "'");
3476 Value* tmpVal = getVal(*$5, $6);
3478 $$ = new StoreInst($3, tmpVal, $1, $7);
3481 | GETRESULT Types ValueRef ',' EUINT64VAL {
3482 if (!UpRefs.empty())
3483 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3484 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3485 GEN_ERROR("getresult insn requires an aggregate operand");
3486 if (!ExtractValueInst::getIndexedType(*$2, $5))
3487 GEN_ERROR("Invalid getresult index for type '" +
3488 (*$2)->getDescription()+ "'");
3490 Value *tmpVal = getVal(*$2, $3);
3492 $$ = ExtractValueInst::Create(tmpVal, $5);
3495 | GETELEMENTPTR Types ValueRef IndexList {
3496 if (!UpRefs.empty())
3497 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3498 if (!isa<PointerType>($2->get()))
3499 GEN_ERROR("getelementptr insn requires pointer operand");
3501 if (!GetElementPtrInst::getIndexedType(*$2, $4->begin(), $4->end()))
3502 GEN_ERROR("Invalid getelementptr indices for type '" +
3503 (*$2)->getDescription()+ "'");
3504 Value* tmpVal = getVal(*$2, $3);
3506 $$ = GetElementPtrInst::Create(tmpVal, $4->begin(), $4->end());
3510 | EXTRACTVALUE Types ValueRef ConstantIndexList {
3511 if (!UpRefs.empty())
3512 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3513 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3514 GEN_ERROR("extractvalue insn requires an aggregate operand");
3516 if (!ExtractValueInst::getIndexedType(*$2, $4->begin(), $4->end()))
3517 GEN_ERROR("Invalid extractvalue indices for type '" +
3518 (*$2)->getDescription()+ "'");
3519 Value* tmpVal = getVal(*$2, $3);
3521 $$ = ExtractValueInst::Create(tmpVal, $4->begin(), $4->end());
3525 | INSERTVALUE Types ValueRef ',' Types ValueRef ConstantIndexList {
3526 if (!UpRefs.empty())
3527 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3528 if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get()))
3529 GEN_ERROR("extractvalue insn requires an aggregate operand");
3531 if (ExtractValueInst::getIndexedType(*$2, $7->begin(), $7->end()) != $5->get())
3532 GEN_ERROR("Invalid insertvalue indices for type '" +
3533 (*$2)->getDescription()+ "'");
3534 Value* aggVal = getVal(*$2, $3);
3535 Value* tmpVal = getVal(*$5, $6);
3537 $$ = InsertValueInst::Create(aggVal, tmpVal, $7->begin(), $7->end());
3546 // common code from the two 'RunVMAsmParser' functions
3547 static Module* RunParser(Module * M) {
3548 CurModule.CurrentModule = M;
3549 // Check to make sure the parser succeeded
3552 delete ParserResult;
3556 // Emit an error if there are any unresolved types left.
3557 if (!CurModule.LateResolveTypes.empty()) {
3558 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3559 if (DID.Type == ValID::LocalName) {
3560 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3562 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3565 delete ParserResult;
3569 // Emit an error if there are any unresolved values left.
3570 if (!CurModule.LateResolveValues.empty()) {
3571 Value *V = CurModule.LateResolveValues.back();
3572 std::map<Value*, std::pair<ValID, int> >::iterator I =
3573 CurModule.PlaceHolderInfo.find(V);
3575 if (I != CurModule.PlaceHolderInfo.end()) {
3576 ValID &DID = I->second.first;
3577 if (DID.Type == ValID::LocalName) {
3578 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3580 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3583 delete ParserResult;
3588 // Check to make sure that parsing produced a result
3592 // Reset ParserResult variable while saving its value for the result.
3593 Module *Result = ParserResult;
3599 void llvm::GenerateError(const std::string &message, int LineNo) {
3600 if (LineNo == -1) LineNo = LLLgetLineNo();
3601 // TODO: column number in exception
3603 TheParseError->setError(LLLgetFilename(), message, LineNo);
3607 int yyerror(const char *ErrorMsg) {
3608 std::string where = LLLgetFilename() + ":" + utostr(LLLgetLineNo()) + ": ";
3609 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3610 if (yychar != YYEMPTY && yychar != 0) {
3611 errMsg += " while reading token: '";
3612 errMsg += std::string(LLLgetTokenStart(),
3613 LLLgetTokenStart()+LLLgetTokenLength()) + "'";
3615 GenerateError(errMsg);