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 static void InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) {
253 // Things that have names or are void typed don't get slot numbers
254 if (V->hasName() || (V->getType() == Type::VoidTy))
257 // In the case of function values, we have to allow for the forward reference
258 // of basic blocks, which are included in the numbering. Consequently, we keep
259 // track of the next insertion location with NextValNum. When a BB gets
260 // inserted, it could change the size of the CurFun.Values vector.
261 if (&ValueTab == &CurFun.Values) {
262 if (ValueTab.size() <= CurFun.NextValNum)
263 ValueTab.resize(CurFun.NextValNum+1);
264 ValueTab[CurFun.NextValNum++] = V;
267 // For all other lists, its okay to just tack it on the back of the vector.
268 ValueTab.push_back(V);
271 static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
273 case ValID::LocalID: // Is it a numbered definition?
274 // Module constants occupy the lowest numbered slots...
275 if (D.Num < CurModule.Types.size())
276 return CurModule.Types[D.Num];
278 case ValID::LocalName: // Is it a named definition?
279 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.getName())) {
280 D.destroy(); // Free old strdup'd memory...
285 GenerateError("Internal parser error: Invalid symbol type reference");
289 // If we reached here, we referenced either a symbol that we don't know about
290 // or an id number that hasn't been read yet. We may be referencing something
291 // forward, so just create an entry to be resolved later and get to it...
293 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
296 if (inFunctionScope()) {
297 if (D.Type == ValID::LocalName) {
298 GenerateError("Reference to an undefined type: '" + D.getName() + "'");
301 GenerateError("Reference to an undefined type: #" + utostr(D.Num));
306 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
307 if (I != CurModule.LateResolveTypes.end())
310 Type *Typ = OpaqueType::get();
311 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
315 // getExistingVal - Look up the value specified by the provided type and
316 // the provided ValID. If the value exists and has already been defined, return
317 // it. Otherwise return null.
319 static Value *getExistingVal(const Type *Ty, const ValID &D) {
320 if (isa<FunctionType>(Ty)) {
321 GenerateError("Functions are not values and "
322 "must be referenced as pointers");
327 case ValID::LocalID: { // Is it a numbered definition?
328 // Check that the number is within bounds.
329 if (D.Num >= CurFun.Values.size())
331 Value *Result = CurFun.Values[D.Num];
332 if (Ty != Result->getType()) {
333 GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" +
334 Result->getType()->getDescription() + "' does not match "
335 "expected type, '" + Ty->getDescription() + "'");
340 case ValID::GlobalID: { // Is it a numbered definition?
341 if (D.Num >= CurModule.Values.size())
343 Value *Result = CurModule.Values[D.Num];
344 if (Ty != Result->getType()) {
345 GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" +
346 Result->getType()->getDescription() + "' does not match "
347 "expected type, '" + Ty->getDescription() + "'");
353 case ValID::LocalName: { // Is it a named definition?
354 if (!inFunctionScope())
356 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
357 Value *N = SymTab.lookup(D.getName());
360 if (N->getType() != Ty)
363 D.destroy(); // Free old strdup'd memory...
366 case ValID::GlobalName: { // Is it a named definition?
367 ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable();
368 Value *N = SymTab.lookup(D.getName());
371 if (N->getType() != Ty)
374 D.destroy(); // Free old strdup'd memory...
378 // Check to make sure that "Ty" is an integral type, and that our
379 // value will fit into the specified type...
380 case ValID::ConstSIntVal: // Is it a constant pool reference??
381 if (!isa<IntegerType>(Ty) ||
382 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
383 GenerateError("Signed integral constant '" +
384 itostr(D.ConstPool64) + "' is invalid for type '" +
385 Ty->getDescription() + "'");
388 return ConstantInt::get(Ty, D.ConstPool64, true);
390 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
391 if (isa<IntegerType>(Ty) &&
392 ConstantInt::isValueValidForType(Ty, D.UConstPool64))
393 return ConstantInt::get(Ty, D.UConstPool64);
395 if (!isa<IntegerType>(Ty) ||
396 !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
397 GenerateError("Integral constant '" + utostr(D.UConstPool64) +
398 "' is invalid or out of range for type '" +
399 Ty->getDescription() + "'");
402 // This is really a signed reference. Transmogrify.
403 return ConstantInt::get(Ty, D.ConstPool64, true);
405 case ValID::ConstFPVal: // Is it a floating point const pool reference?
406 if (!Ty->isFloatingPoint() ||
407 !ConstantFP::isValueValidForType(Ty, *D.ConstPoolFP)) {
408 GenerateError("FP constant invalid for type");
411 // Lexer has no type info, so builds all float and double FP constants
412 // as double. Fix this here. Long double does not need this.
413 if (&D.ConstPoolFP->getSemantics() == &APFloat::IEEEdouble &&
415 D.ConstPoolFP->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven);
416 return ConstantFP::get(Ty, *D.ConstPoolFP);
418 case ValID::ConstNullVal: // Is it a null value?
419 if (!isa<PointerType>(Ty)) {
420 GenerateError("Cannot create a a non pointer null");
423 return ConstantPointerNull::get(cast<PointerType>(Ty));
425 case ValID::ConstUndefVal: // Is it an undef value?
426 return UndefValue::get(Ty);
428 case ValID::ConstZeroVal: // Is it a zero value?
429 return Constant::getNullValue(Ty);
431 case ValID::ConstantVal: // Fully resolved constant?
432 if (D.ConstantValue->getType() != Ty) {
433 GenerateError("Constant expression type different from required type");
436 return D.ConstantValue;
438 case ValID::InlineAsmVal: { // Inline asm expression
439 const PointerType *PTy = dyn_cast<PointerType>(Ty);
440 const FunctionType *FTy =
441 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
442 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
443 GenerateError("Invalid type for asm constraint string");
446 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
447 D.IAD->HasSideEffects);
448 D.destroy(); // Free InlineAsmDescriptor.
452 assert(0 && "Unhandled case!");
456 assert(0 && "Unhandled case!");
460 // getVal - This function is identical to getExistingVal, except that if a
461 // value is not already defined, it "improvises" by creating a placeholder var
462 // that looks and acts just like the requested variable. When the value is
463 // defined later, all uses of the placeholder variable are replaced with the
466 static Value *getVal(const Type *Ty, const ValID &ID) {
467 if (Ty == Type::LabelTy) {
468 GenerateError("Cannot use a basic block here");
472 // See if the value has already been defined.
473 Value *V = getExistingVal(Ty, ID);
475 if (TriggerError) return 0;
477 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
478 GenerateError("Invalid use of a composite type");
482 // If we reached here, we referenced either a symbol that we don't know about
483 // or an id number that hasn't been read yet. We may be referencing something
484 // forward, so just create an entry to be resolved later and get to it...
487 case ValID::GlobalName:
488 case ValID::GlobalID: {
489 const PointerType *PTy = dyn_cast<PointerType>(Ty);
491 GenerateError("Invalid type for reference to global" );
494 const Type* ElTy = PTy->getElementType();
495 if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy))
496 V = new Function(FTy, GlobalValue::ExternalLinkage);
498 V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage, 0, "",
499 (Module*)0, false, PTy->getAddressSpace());
503 V = new Argument(Ty);
506 // Remember where this forward reference came from. FIXME, shouldn't we try
507 // to recycle these things??
508 CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
511 if (inFunctionScope())
512 InsertValue(V, CurFun.LateResolveValues);
514 InsertValue(V, CurModule.LateResolveValues);
518 /// defineBBVal - This is a definition of a new basic block with the specified
519 /// identifier which must be the same as CurFun.NextValNum, if its numeric.
520 static BasicBlock *defineBBVal(const ValID &ID) {
521 assert(inFunctionScope() && "Can't get basic block at global scope!");
525 // First, see if this was forward referenced
527 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
528 if (BBI != CurFun.BBForwardRefs.end()) {
530 // The forward declaration could have been inserted anywhere in the
531 // function: insert it into the correct place now.
532 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
533 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
535 // We're about to erase the entry, save the key so we can clean it up.
536 ValID Tmp = BBI->first;
538 // Erase the forward ref from the map as its no longer "forward"
539 CurFun.BBForwardRefs.erase(ID);
541 // The key has been removed from the map but so we don't want to leave
542 // strdup'd memory around so destroy it too.
545 // If its a numbered definition, bump the number and set the BB value.
546 if (ID.Type == ValID::LocalID) {
547 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
555 // We haven't seen this BB before and its first mention is a definition.
556 // Just create it and return it.
557 std::string Name (ID.Type == ValID::LocalName ? ID.getName() : "");
558 BB = new BasicBlock(Name, CurFun.CurrentFunction);
559 if (ID.Type == ValID::LocalID) {
560 assert(ID.Num == CurFun.NextValNum && "Invalid new block number");
564 ID.destroy(); // Free strdup'd memory
568 /// getBBVal - get an existing BB value or create a forward reference for it.
570 static BasicBlock *getBBVal(const ValID &ID) {
571 assert(inFunctionScope() && "Can't get basic block at global scope!");
575 std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID);
576 if (BBI != CurFun.BBForwardRefs.end()) {
578 } if (ID.Type == ValID::LocalName) {
579 std::string Name = ID.getName();
580 Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name);
582 if (N->getType()->getTypeID() == Type::LabelTyID)
583 BB = cast<BasicBlock>(N);
585 GenerateError("Reference to label '" + Name + "' is actually of type '"+
586 N->getType()->getDescription() + "'");
588 } else if (ID.Type == ValID::LocalID) {
589 if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) {
590 if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID)
591 BB = cast<BasicBlock>(CurFun.Values[ID.Num]);
593 GenerateError("Reference to label '%" + utostr(ID.Num) +
594 "' is actually of type '"+
595 CurFun.Values[ID.Num]->getType()->getDescription() + "'");
598 GenerateError("Illegal label reference " + ID.getName());
602 // If its already been defined, return it now.
604 ID.destroy(); // Free strdup'd memory.
608 // Otherwise, this block has not been seen before, create it.
610 if (ID.Type == ValID::LocalName)
612 BB = new BasicBlock(Name, CurFun.CurrentFunction);
614 // Insert it in the forward refs map.
615 CurFun.BBForwardRefs[ID] = BB;
621 //===----------------------------------------------------------------------===//
622 // Code to handle forward references in instructions
623 //===----------------------------------------------------------------------===//
625 // This code handles the late binding needed with statements that reference
626 // values not defined yet... for example, a forward branch, or the PHI node for
629 // This keeps a table (CurFun.LateResolveValues) of all such forward references
630 // and back patchs after we are done.
633 // ResolveDefinitions - If we could not resolve some defs at parsing
634 // time (forward branches, phi functions for loops, etc...) resolve the
638 ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) {
639 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
640 while (!LateResolvers.empty()) {
641 Value *V = LateResolvers.back();
642 LateResolvers.pop_back();
644 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
645 CurModule.PlaceHolderInfo.find(V);
646 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
648 ValID &DID = PHI->second.first;
650 Value *TheRealValue = getExistingVal(V->getType(), DID);
654 V->replaceAllUsesWith(TheRealValue);
656 CurModule.PlaceHolderInfo.erase(PHI);
657 } else if (FutureLateResolvers) {
658 // Functions have their unresolved items forwarded to the module late
660 InsertValue(V, *FutureLateResolvers);
662 if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) {
663 GenerateError("Reference to an invalid definition: '" +DID.getName()+
664 "' of type '" + V->getType()->getDescription() + "'",
668 GenerateError("Reference to an invalid definition: #" +
669 itostr(DID.Num) + " of type '" +
670 V->getType()->getDescription() + "'",
676 LateResolvers.clear();
679 // ResolveTypeTo - A brand new type was just declared. This means that (if
680 // name is not null) things referencing Name can be resolved. Otherwise, things
681 // refering to the number can be resolved. Do this now.
683 static void ResolveTypeTo(std::string *Name, const Type *ToTy) {
686 D = ValID::createLocalName(*Name);
688 D = ValID::createLocalID(CurModule.Types.size());
690 std::map<ValID, PATypeHolder>::iterator I =
691 CurModule.LateResolveTypes.find(D);
692 if (I != CurModule.LateResolveTypes.end()) {
693 ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
694 CurModule.LateResolveTypes.erase(I);
698 // setValueName - Set the specified value to the name given. The name may be
699 // null potentially, in which case this is a noop. The string passed in is
700 // assumed to be a malloc'd string buffer, and is free'd by this function.
702 static void setValueName(Value *V, std::string *NameStr) {
703 if (!NameStr) return;
704 std::string Name(*NameStr); // Copy string
705 delete NameStr; // Free old string
707 if (V->getType() == Type::VoidTy) {
708 GenerateError("Can't assign name '" + Name+"' to value with void type");
712 assert(inFunctionScope() && "Must be in function scope!");
713 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
714 if (ST.lookup(Name)) {
715 GenerateError("Redefinition of value '" + Name + "' of type '" +
716 V->getType()->getDescription() + "'");
724 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
725 /// this is a declaration, otherwise it is a definition.
726 static GlobalVariable *
727 ParseGlobalVariable(std::string *NameStr,
728 GlobalValue::LinkageTypes Linkage,
729 GlobalValue::VisibilityTypes Visibility,
730 bool isConstantGlobal, const Type *Ty,
731 Constant *Initializer, bool IsThreadLocal,
732 unsigned AddressSpace = 0) {
733 if (isa<FunctionType>(Ty)) {
734 GenerateError("Cannot declare global vars of function type");
738 const PointerType *PTy = PointerType::get(Ty, AddressSpace);
742 Name = *NameStr; // Copy string
743 delete NameStr; // Free old string
746 // See if this global value was forward referenced. If so, recycle the
750 ID = ValID::createGlobalName(Name);
752 ID = ValID::createGlobalID(CurModule.Values.size());
755 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
756 // Move the global to the end of the list, from whereever it was
757 // previously inserted.
758 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
759 CurModule.CurrentModule->getGlobalList().remove(GV);
760 CurModule.CurrentModule->getGlobalList().push_back(GV);
761 GV->setInitializer(Initializer);
762 GV->setLinkage(Linkage);
763 GV->setVisibility(Visibility);
764 GV->setConstant(isConstantGlobal);
765 GV->setThreadLocal(IsThreadLocal);
766 InsertValue(GV, CurModule.Values);
770 // If this global has a name
772 // if the global we're parsing has an initializer (is a definition) and
773 // has external linkage.
774 if (Initializer && Linkage != GlobalValue::InternalLinkage)
775 // If there is already a global with external linkage with this name
776 if (CurModule.CurrentModule->getGlobalVariable(Name, false)) {
777 // If we allow this GVar to get created, it will be renamed in the
778 // symbol table because it conflicts with an existing GVar. We can't
779 // allow redefinition of GVars whose linking indicates that their name
780 // must stay the same. Issue the error.
781 GenerateError("Redefinition of global variable named '" + Name +
782 "' of type '" + Ty->getDescription() + "'");
787 // Otherwise there is no existing GV to use, create one now.
789 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
790 CurModule.CurrentModule, IsThreadLocal, AddressSpace);
791 GV->setVisibility(Visibility);
792 InsertValue(GV, CurModule.Values);
796 // setTypeName - Set the specified type to the name given. The name may be
797 // null potentially, in which case this is a noop. The string passed in is
798 // assumed to be a malloc'd string buffer, and is freed by this function.
800 // This function returns true if the type has already been defined, but is
801 // allowed to be redefined in the specified context. If the name is a new name
802 // for the type plane, it is inserted and false is returned.
803 static bool setTypeName(const Type *T, std::string *NameStr) {
804 assert(!inFunctionScope() && "Can't give types function-local names!");
805 if (NameStr == 0) return false;
807 std::string Name(*NameStr); // Copy string
808 delete NameStr; // Free old string
810 // We don't allow assigning names to void type
811 if (T == Type::VoidTy) {
812 GenerateError("Can't assign name '" + Name + "' to the void type");
816 // Set the type name, checking for conflicts as we do so.
817 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
819 if (AlreadyExists) { // Inserting a name that is already defined???
820 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
821 assert(Existing && "Conflict but no matching type?!");
823 // There is only one case where this is allowed: when we are refining an
824 // opaque type. In this case, Existing will be an opaque type.
825 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
826 // We ARE replacing an opaque type!
827 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
831 // Otherwise, this is an attempt to redefine a type. That's okay if
832 // the redefinition is identical to the original. This will be so if
833 // Existing and T point to the same Type object. In this one case we
834 // allow the equivalent redefinition.
835 if (Existing == T) return true; // Yes, it's equal.
837 // Any other kind of (non-equivalent) redefinition is an error.
838 GenerateError("Redefinition of type named '" + Name + "' of type '" +
839 T->getDescription() + "'");
845 //===----------------------------------------------------------------------===//
846 // Code for handling upreferences in type names...
849 // TypeContains - Returns true if Ty directly contains E in it.
851 static bool TypeContains(const Type *Ty, const Type *E) {
852 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
853 E) != Ty->subtype_end();
858 // NestingLevel - The number of nesting levels that need to be popped before
859 // this type is resolved.
860 unsigned NestingLevel;
862 // LastContainedTy - This is the type at the current binding level for the
863 // type. Every time we reduce the nesting level, this gets updated.
864 const Type *LastContainedTy;
866 // UpRefTy - This is the actual opaque type that the upreference is
870 UpRefRecord(unsigned NL, OpaqueType *URTy)
871 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
875 // UpRefs - A list of the outstanding upreferences that need to be resolved.
876 static std::vector<UpRefRecord> UpRefs;
878 /// HandleUpRefs - Every time we finish a new layer of types, this function is
879 /// called. It loops through the UpRefs vector, which is a list of the
880 /// currently active types. For each type, if the up reference is contained in
881 /// the newly completed type, we decrement the level count. When the level
882 /// count reaches zero, the upreferenced type is the type that is passed in:
883 /// thus we can complete the cycle.
885 static PATypeHolder HandleUpRefs(const Type *ty) {
886 // If Ty isn't abstract, or if there are no up-references in it, then there is
887 // nothing to resolve here.
888 if (!ty->isAbstract() || UpRefs.empty()) return ty;
891 UR_OUT("Type '" << Ty->getDescription() <<
892 "' newly formed. Resolving upreferences.\n" <<
893 UpRefs.size() << " upreferences active!\n");
895 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
896 // to zero), we resolve them all together before we resolve them to Ty. At
897 // the end of the loop, if there is anything to resolve to Ty, it will be in
899 OpaqueType *TypeToResolve = 0;
901 for (unsigned i = 0; i != UpRefs.size(); ++i) {
902 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
903 << UpRefs[i].second->getDescription() << ") = "
904 << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
905 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
906 // Decrement level of upreference
907 unsigned Level = --UpRefs[i].NestingLevel;
908 UpRefs[i].LastContainedTy = Ty;
909 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
910 if (Level == 0) { // Upreference should be resolved!
911 if (!TypeToResolve) {
912 TypeToResolve = UpRefs[i].UpRefTy;
914 UR_OUT(" * Resolving upreference for "
915 << UpRefs[i].second->getDescription() << "\n";
916 std::string OldName = UpRefs[i].UpRefTy->getDescription());
917 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
918 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
919 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
921 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
922 --i; // Do not skip the next element...
928 UR_OUT(" * Resolving upreference for "
929 << UpRefs[i].second->getDescription() << "\n";
930 std::string OldName = TypeToResolve->getDescription());
931 TypeToResolve->refineAbstractTypeTo(Ty);
937 //===----------------------------------------------------------------------===//
938 // RunVMAsmParser - Define an interface to this parser
939 //===----------------------------------------------------------------------===//
941 static Module* RunParser(Module * M);
943 Module *llvm::RunVMAsmParser(llvm::MemoryBuffer *MB) {
945 Module *M = RunParser(new Module(LLLgetFilename()));
953 llvm::Module *ModuleVal;
954 llvm::Function *FunctionVal;
955 llvm::BasicBlock *BasicBlockVal;
956 llvm::TerminatorInst *TermInstVal;
957 llvm::Instruction *InstVal;
958 llvm::Constant *ConstVal;
960 const llvm::Type *PrimType;
961 std::list<llvm::PATypeHolder> *TypeList;
962 llvm::PATypeHolder *TypeVal;
963 llvm::Value *ValueVal;
964 std::vector<llvm::Value*> *ValueList;
965 llvm::ArgListType *ArgList;
966 llvm::TypeWithAttrs TypeWithAttrs;
967 llvm::TypeWithAttrsList *TypeWithAttrsList;
968 llvm::ParamList *ParamList;
970 // Represent the RHS of PHI node
971 std::list<std::pair<llvm::Value*,
972 llvm::BasicBlock*> > *PHIList;
973 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
974 std::vector<llvm::Constant*> *ConstVector;
976 llvm::GlobalValue::LinkageTypes Linkage;
977 llvm::GlobalValue::VisibilityTypes Visibility;
978 llvm::ParameterAttributes ParamAttrs;
979 llvm::APInt *APIntVal;
984 llvm::APFloat *FPVal;
987 std::string *StrVal; // This memory must be deleted
988 llvm::ValID ValIDVal;
990 llvm::Instruction::BinaryOps BinaryOpVal;
991 llvm::Instruction::TermOps TermOpVal;
992 llvm::Instruction::MemoryOps MemOpVal;
993 llvm::Instruction::CastOps CastOpVal;
994 llvm::Instruction::OtherOps OtherOpVal;
995 llvm::ICmpInst::Predicate IPredicate;
996 llvm::FCmpInst::Predicate FPredicate;
999 %type <ModuleVal> Module
1000 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1001 %type <BasicBlockVal> BasicBlock InstructionList
1002 %type <TermInstVal> BBTerminatorInst
1003 %type <InstVal> Inst InstVal MemoryInst
1004 %type <ConstVal> ConstVal ConstExpr AliaseeRef
1005 %type <ConstVector> ConstVector
1006 %type <ArgList> ArgList ArgListH
1007 %type <PHIList> PHIList
1008 %type <ParamList> ParamList // For call param lists & GEP indices
1009 %type <ValueList> IndexList // For GEP indices
1010 %type <TypeList> TypeListI
1011 %type <TypeWithAttrsList> ArgTypeList ArgTypeListI
1012 %type <TypeWithAttrs> ArgType
1013 %type <JumpTable> JumpTable
1014 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1015 %type <BoolVal> ThreadLocal // 'thread_local' or not
1016 %type <BoolVal> OptVolatile // 'volatile' or not
1017 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1018 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1019 %type <Linkage> GVInternalLinkage GVExternalLinkage
1020 %type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage
1021 %type <Linkage> AliasLinkage
1022 %type <Visibility> GVVisibilityStyle
1024 // ValueRef - Unresolved reference to a definition or BB
1025 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1026 %type <ValueVal> ResolvedVal // <type> <valref> pair
1027 // Tokens and types for handling constant integer values
1029 // ESINT64VAL - A negative number within long long range
1030 %token <SInt64Val> ESINT64VAL
1032 // EUINT64VAL - A positive number within uns. long long range
1033 %token <UInt64Val> EUINT64VAL
1035 // ESAPINTVAL - A negative number with arbitrary precision
1036 %token <APIntVal> ESAPINTVAL
1038 // EUAPINTVAL - A positive number with arbitrary precision
1039 %token <APIntVal> EUAPINTVAL
1041 %token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123
1042 %token <FPVal> FPVAL // Float or Double constant
1044 // Built in types...
1045 %type <TypeVal> Types ResultTypes
1046 %type <PrimType> IntType FPType PrimType // Classifications
1047 %token <PrimType> VOID INTTYPE
1048 %token <PrimType> FLOAT DOUBLE X86_FP80 FP128 PPC_FP128 LABEL
1052 %token<StrVal> LOCALVAR GLOBALVAR LABELSTR
1053 %token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT
1054 %type <StrVal> LocalName OptLocalName OptLocalAssign
1055 %type <StrVal> GlobalName OptGlobalAssign GlobalAssign
1056 %type <StrVal> OptSection SectionString OptGC
1058 %type <UIntVal> OptAlign OptCAlign OptAddrSpace
1060 %token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1061 %token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL
1062 %token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING
1063 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1064 %token OPAQUE EXTERNAL TARGET TRIPLE ALIGN ADDRSPACE
1065 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1066 %token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1068 %type <UIntVal> OptCallingConv
1069 %type <ParamAttrs> OptParamAttrs ParamAttr
1070 %type <ParamAttrs> OptFuncAttrs FuncAttr
1072 // Basic Block Terminating Operators
1073 %token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
1076 %type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories
1077 %token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
1078 %token <BinaryOpVal> SHL LSHR ASHR
1080 %token <OtherOpVal> ICMP FCMP
1081 %type <IPredicate> IPredicates
1082 %type <FPredicate> FPredicates
1083 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1084 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1086 // Memory Instructions
1087 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1090 %type <CastOpVal> CastOps
1091 %token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST
1092 %token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT
1095 %token <OtherOpVal> PHI_TOK SELECT VAARG
1096 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1097 %token <OtherOpVal> GETRESULT
1099 // Function Attributes
1100 %token SIGNEXT ZEROEXT NORETURN INREG SRET NOUNWIND NOALIAS BYVAL NEST
1101 %token READNONE READONLY GC
1103 // Visibility Styles
1104 %token DEFAULT HIDDEN PROTECTED
1110 // Operations that are notably excluded from this list include:
1111 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1113 ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
1114 LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR;
1115 CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST |
1116 UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT;
1119 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1120 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1121 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1122 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1123 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1127 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1128 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1129 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1130 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1131 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1132 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1133 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1134 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1135 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1138 // These are some types that allow classification if we only want a particular
1139 // thing... for example, only a signed, unsigned, or integral type.
1141 FPType : FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80;
1143 LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ;
1144 OptLocalName : LocalName | /*empty*/ { $$ = 0; };
1146 OptAddrSpace : ADDRSPACE '(' EUINT64VAL ')' { $$=$3; }
1147 | /*empty*/ { $$=0; };
1149 /// OptLocalAssign - Value producing statements have an optional assignment
1151 OptLocalAssign : LocalName '=' {
1160 GlobalName : GLOBALVAR | ATSTRINGCONSTANT ;
1162 OptGlobalAssign : GlobalAssign
1168 GlobalAssign : GlobalName '=' {
1174 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1175 | WEAK { $$ = GlobalValue::WeakLinkage; }
1176 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1177 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1178 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1182 : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1183 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1184 | EXTERNAL { $$ = GlobalValue::ExternalLinkage; }
1188 : /*empty*/ { $$ = GlobalValue::DefaultVisibility; }
1189 | DEFAULT { $$ = GlobalValue::DefaultVisibility; }
1190 | HIDDEN { $$ = GlobalValue::HiddenVisibility; }
1191 | PROTECTED { $$ = GlobalValue::ProtectedVisibility; }
1194 FunctionDeclareLinkage
1195 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1196 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1197 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1200 FunctionDefineLinkage
1201 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1202 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1203 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1204 | WEAK { $$ = GlobalValue::WeakLinkage; }
1205 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1209 : /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1210 | WEAK { $$ = GlobalValue::WeakLinkage; }
1211 | INTERNAL { $$ = GlobalValue::InternalLinkage; }
1214 OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
1215 CCC_TOK { $$ = CallingConv::C; } |
1216 FASTCC_TOK { $$ = CallingConv::Fast; } |
1217 COLDCC_TOK { $$ = CallingConv::Cold; } |
1218 X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
1219 X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
1221 if ((unsigned)$2 != $2)
1222 GEN_ERROR("Calling conv too large");
1227 ParamAttr : ZEROEXT { $$ = ParamAttr::ZExt; }
1228 | ZEXT { $$ = ParamAttr::ZExt; }
1229 | SIGNEXT { $$ = ParamAttr::SExt; }
1230 | SEXT { $$ = ParamAttr::SExt; }
1231 | INREG { $$ = ParamAttr::InReg; }
1232 | SRET { $$ = ParamAttr::StructRet; }
1233 | NOALIAS { $$ = ParamAttr::NoAlias; }
1234 | BYVAL { $$ = ParamAttr::ByVal; }
1235 | NEST { $$ = ParamAttr::Nest; }
1238 OptParamAttrs : /* empty */ { $$ = ParamAttr::None; }
1239 | OptParamAttrs ParamAttr {
1244 FuncAttr : NORETURN { $$ = ParamAttr::NoReturn; }
1245 | NOUNWIND { $$ = ParamAttr::NoUnwind; }
1246 | ZEROEXT { $$ = ParamAttr::ZExt; }
1247 | SIGNEXT { $$ = ParamAttr::SExt; }
1248 | READNONE { $$ = ParamAttr::ReadNone; }
1249 | READONLY { $$ = ParamAttr::ReadOnly; }
1252 OptFuncAttrs : /* empty */ { $$ = ParamAttr::None; }
1253 | OptFuncAttrs FuncAttr {
1258 OptGC : /* empty */ { $$ = 0; }
1259 | GC STRINGCONSTANT {
1264 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1265 // a comma before it.
1266 OptAlign : /*empty*/ { $$ = 0; } |
1269 if ($$ != 0 && !isPowerOf2_32($$))
1270 GEN_ERROR("Alignment must be a power of two");
1273 OptCAlign : /*empty*/ { $$ = 0; } |
1274 ',' ALIGN EUINT64VAL {
1276 if ($$ != 0 && !isPowerOf2_32($$))
1277 GEN_ERROR("Alignment must be a power of two");
1283 SectionString : SECTION STRINGCONSTANT {
1284 for (unsigned i = 0, e = $2->length(); i != e; ++i)
1285 if ((*$2)[i] == '"' || (*$2)[i] == '\\')
1286 GEN_ERROR("Invalid character in section name");
1291 OptSection : /*empty*/ { $$ = 0; } |
1292 SectionString { $$ = $1; };
1294 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1295 // is set to be the global we are processing.
1297 GlobalVarAttributes : /* empty */ {} |
1298 ',' GlobalVarAttribute GlobalVarAttributes {};
1299 GlobalVarAttribute : SectionString {
1300 CurGV->setSection(*$1);
1304 | ALIGN EUINT64VAL {
1305 if ($2 != 0 && !isPowerOf2_32($2))
1306 GEN_ERROR("Alignment must be a power of two");
1307 CurGV->setAlignment($2);
1311 //===----------------------------------------------------------------------===//
1312 // Types includes all predefined types... except void, because it can only be
1313 // used in specific contexts (function returning void for example).
1315 // Derived types are added later...
1317 PrimType : INTTYPE | FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80 | LABEL ;
1321 $$ = new PATypeHolder(OpaqueType::get());
1325 $$ = new PATypeHolder($1);
1328 | Types OptAddrSpace '*' { // Pointer type?
1329 if (*$1 == Type::LabelTy)
1330 GEN_ERROR("Cannot form a pointer to a basic block");
1331 $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1, $2)));
1335 | SymbolicValueRef { // Named types are also simple types...
1336 const Type* tmp = getTypeVal($1);
1338 $$ = new PATypeHolder(tmp);
1340 | '\\' EUINT64VAL { // Type UpReference
1341 if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range");
1342 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
1343 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
1344 $$ = new PATypeHolder(OT);
1345 UR_OUT("New Upreference!\n");
1348 | Types '(' ArgTypeListI ')' OptFuncAttrs {
1349 // Allow but ignore attributes on function types; this permits auto-upgrade.
1350 // FIXME: remove in LLVM 3.0.
1351 const Type* RetTy = *$1;
1352 if (!(RetTy->isFirstClassType() || RetTy == Type::VoidTy ||
1353 isa<OpaqueType>(RetTy)))
1354 GEN_ERROR("LLVM Functions cannot return aggregates");
1356 std::vector<const Type*> Params;
1357 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1358 for (; I != E; ++I ) {
1359 const Type *Ty = I->Ty->get();
1360 Params.push_back(Ty);
1363 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1364 if (isVarArg) Params.pop_back();
1366 for (unsigned i = 0; i != Params.size(); ++i)
1367 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1368 GEN_ERROR("Function arguments must be value types!");
1372 FunctionType *FT = FunctionType::get(RetTy, Params, isVarArg);
1373 delete $3; // Delete the argument list
1374 delete $1; // Delete the return type handle
1375 $$ = new PATypeHolder(HandleUpRefs(FT));
1378 | VOID '(' ArgTypeListI ')' OptFuncAttrs {
1379 // Allow but ignore attributes on function types; this permits auto-upgrade.
1380 // FIXME: remove in LLVM 3.0.
1381 std::vector<const Type*> Params;
1382 TypeWithAttrsList::iterator I = $3->begin(), E = $3->end();
1383 for ( ; I != E; ++I ) {
1384 const Type* Ty = I->Ty->get();
1385 Params.push_back(Ty);
1388 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
1389 if (isVarArg) Params.pop_back();
1391 for (unsigned i = 0; i != Params.size(); ++i)
1392 if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])))
1393 GEN_ERROR("Function arguments must be value types!");
1397 FunctionType *FT = FunctionType::get($1, Params, isVarArg);
1398 delete $3; // Delete the argument list
1399 $$ = new PATypeHolder(HandleUpRefs(FT));
1403 | '[' EUINT64VAL 'x' Types ']' { // Sized array type?
1404 $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
1408 | '<' EUINT64VAL 'x' Types '>' { // Vector type?
1409 const llvm::Type* ElemTy = $4->get();
1410 if ((unsigned)$2 != $2)
1411 GEN_ERROR("Unsigned result not equal to signed result");
1412 if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger())
1413 GEN_ERROR("Element type of a VectorType must be primitive");
1414 $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2)));
1418 | '{' TypeListI '}' { // Structure type?
1419 std::vector<const Type*> Elements;
1420 for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
1421 E = $2->end(); I != E; ++I)
1422 Elements.push_back(*I);
1424 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
1428 | '{' '}' { // Empty structure type?
1429 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
1432 | '<' '{' TypeListI '}' '>' {
1433 std::vector<const Type*> Elements;
1434 for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
1435 E = $3->end(); I != E; ++I)
1436 Elements.push_back(*I);
1438 $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true)));
1442 | '<' '{' '}' '>' { // Empty structure type?
1443 $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true));
1449 : Types OptParamAttrs {
1450 // Allow but ignore attributes on function types; this permits auto-upgrade.
1451 // FIXME: remove in LLVM 3.0.
1453 $$.Attrs = ParamAttr::None;
1459 if (!UpRefs.empty())
1460 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1461 if (!(*$1)->isFirstClassType())
1462 GEN_ERROR("LLVM functions cannot return aggregate types");
1466 $$ = new PATypeHolder(Type::VoidTy);
1470 ArgTypeList : ArgType {
1471 $$ = new TypeWithAttrsList();
1475 | ArgTypeList ',' ArgType {
1476 ($$=$1)->push_back($3);
1483 | ArgTypeList ',' DOTDOTDOT {
1485 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1486 TWA.Ty = new PATypeHolder(Type::VoidTy);
1491 $$ = new TypeWithAttrsList;
1492 TypeWithAttrs TWA; TWA.Attrs = ParamAttr::None;
1493 TWA.Ty = new PATypeHolder(Type::VoidTy);
1498 $$ = new TypeWithAttrsList();
1502 // TypeList - Used for struct declarations and as a basis for function type
1503 // declaration type lists
1506 $$ = new std::list<PATypeHolder>();
1511 | TypeListI ',' Types {
1512 ($$=$1)->push_back(*$3);
1517 // ConstVal - The various declarations that go into the constant pool. This
1518 // production is used ONLY to represent constants that show up AFTER a 'const',
1519 // 'constant' or 'global' token at global scope. Constants that can be inlined
1520 // into other expressions (such as integers and constexprs) are handled by the
1521 // ResolvedVal, ValueRef and ConstValueRef productions.
1523 ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
1524 if (!UpRefs.empty())
1525 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1526 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1528 GEN_ERROR("Cannot make array constant with type: '" +
1529 (*$1)->getDescription() + "'");
1530 const Type *ETy = ATy->getElementType();
1531 int NumElements = ATy->getNumElements();
1533 // Verify that we have the correct size...
1534 if (NumElements != -1 && NumElements != (int)$3->size())
1535 GEN_ERROR("Type mismatch: constant sized array initialized with " +
1536 utostr($3->size()) + " arguments, but has size of " +
1537 itostr(NumElements) + "");
1539 // Verify all elements are correct type!
1540 for (unsigned i = 0; i < $3->size(); i++) {
1541 if (ETy != (*$3)[i]->getType())
1542 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1543 ETy->getDescription() +"' as required!\nIt is of type '"+
1544 (*$3)[i]->getType()->getDescription() + "'.");
1547 $$ = ConstantArray::get(ATy, *$3);
1548 delete $1; delete $3;
1552 if (!UpRefs.empty())
1553 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1554 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1556 GEN_ERROR("Cannot make array constant with type: '" +
1557 (*$1)->getDescription() + "'");
1559 int NumElements = ATy->getNumElements();
1560 if (NumElements != -1 && NumElements != 0)
1561 GEN_ERROR("Type mismatch: constant sized array initialized with 0"
1562 " arguments, but has size of " + itostr(NumElements) +"");
1563 $$ = ConstantArray::get(ATy, std::vector<Constant*>());
1567 | Types 'c' STRINGCONSTANT {
1568 if (!UpRefs.empty())
1569 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1570 const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
1572 GEN_ERROR("Cannot make array constant with type: '" +
1573 (*$1)->getDescription() + "'");
1575 int NumElements = ATy->getNumElements();
1576 const Type *ETy = ATy->getElementType();
1577 if (NumElements != -1 && NumElements != int($3->length()))
1578 GEN_ERROR("Can't build string constant of size " +
1579 itostr((int)($3->length())) +
1580 " when array has size " + itostr(NumElements) + "");
1581 std::vector<Constant*> Vals;
1582 if (ETy == Type::Int8Ty) {
1583 for (unsigned i = 0; i < $3->length(); ++i)
1584 Vals.push_back(ConstantInt::get(ETy, (*$3)[i]));
1587 GEN_ERROR("Cannot build string arrays of non byte sized elements");
1590 $$ = ConstantArray::get(ATy, Vals);
1594 | Types '<' ConstVector '>' { // Nonempty unsized arr
1595 if (!UpRefs.empty())
1596 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1597 const VectorType *PTy = dyn_cast<VectorType>($1->get());
1599 GEN_ERROR("Cannot make packed constant with type: '" +
1600 (*$1)->getDescription() + "'");
1601 const Type *ETy = PTy->getElementType();
1602 int NumElements = PTy->getNumElements();
1604 // Verify that we have the correct size...
1605 if (NumElements != -1 && NumElements != (int)$3->size())
1606 GEN_ERROR("Type mismatch: constant sized packed initialized with " +
1607 utostr($3->size()) + " arguments, but has size of " +
1608 itostr(NumElements) + "");
1610 // Verify all elements are correct type!
1611 for (unsigned i = 0; i < $3->size(); i++) {
1612 if (ETy != (*$3)[i]->getType())
1613 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
1614 ETy->getDescription() +"' as required!\nIt is of type '"+
1615 (*$3)[i]->getType()->getDescription() + "'.");
1618 $$ = ConstantVector::get(PTy, *$3);
1619 delete $1; delete $3;
1622 | Types '{' ConstVector '}' {
1623 const StructType *STy = dyn_cast<StructType>($1->get());
1625 GEN_ERROR("Cannot make struct constant with type: '" +
1626 (*$1)->getDescription() + "'");
1628 if ($3->size() != STy->getNumContainedTypes())
1629 GEN_ERROR("Illegal number of initializers for structure type");
1631 // Check to ensure that constants are compatible with the type initializer!
1632 for (unsigned i = 0, e = $3->size(); i != e; ++i)
1633 if ((*$3)[i]->getType() != STy->getElementType(i))
1634 GEN_ERROR("Expected type '" +
1635 STy->getElementType(i)->getDescription() +
1636 "' for element #" + utostr(i) +
1637 " of structure initializer");
1639 // Check to ensure that Type is not packed
1640 if (STy->isPacked())
1641 GEN_ERROR("Unpacked Initializer to vector type '" +
1642 STy->getDescription() + "'");
1644 $$ = ConstantStruct::get(STy, *$3);
1645 delete $1; delete $3;
1649 if (!UpRefs.empty())
1650 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1651 const StructType *STy = dyn_cast<StructType>($1->get());
1653 GEN_ERROR("Cannot make struct constant with type: '" +
1654 (*$1)->getDescription() + "'");
1656 if (STy->getNumContainedTypes() != 0)
1657 GEN_ERROR("Illegal number of initializers for structure type");
1659 // Check to ensure that Type is not packed
1660 if (STy->isPacked())
1661 GEN_ERROR("Unpacked Initializer to vector type '" +
1662 STy->getDescription() + "'");
1664 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1668 | Types '<' '{' ConstVector '}' '>' {
1669 const StructType *STy = dyn_cast<StructType>($1->get());
1671 GEN_ERROR("Cannot make struct constant with type: '" +
1672 (*$1)->getDescription() + "'");
1674 if ($4->size() != STy->getNumContainedTypes())
1675 GEN_ERROR("Illegal number of initializers for structure type");
1677 // Check to ensure that constants are compatible with the type initializer!
1678 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1679 if ((*$4)[i]->getType() != STy->getElementType(i))
1680 GEN_ERROR("Expected type '" +
1681 STy->getElementType(i)->getDescription() +
1682 "' for element #" + utostr(i) +
1683 " of structure initializer");
1685 // Check to ensure that Type is packed
1686 if (!STy->isPacked())
1687 GEN_ERROR("Vector initializer to non-vector type '" +
1688 STy->getDescription() + "'");
1690 $$ = ConstantStruct::get(STy, *$4);
1691 delete $1; delete $4;
1694 | Types '<' '{' '}' '>' {
1695 if (!UpRefs.empty())
1696 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1697 const StructType *STy = dyn_cast<StructType>($1->get());
1699 GEN_ERROR("Cannot make struct constant with type: '" +
1700 (*$1)->getDescription() + "'");
1702 if (STy->getNumContainedTypes() != 0)
1703 GEN_ERROR("Illegal number of initializers for structure type");
1705 // Check to ensure that Type is packed
1706 if (!STy->isPacked())
1707 GEN_ERROR("Vector initializer to non-vector type '" +
1708 STy->getDescription() + "'");
1710 $$ = ConstantStruct::get(STy, std::vector<Constant*>());
1715 if (!UpRefs.empty())
1716 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1717 const PointerType *PTy = dyn_cast<PointerType>($1->get());
1719 GEN_ERROR("Cannot make null pointer constant with type: '" +
1720 (*$1)->getDescription() + "'");
1722 $$ = ConstantPointerNull::get(PTy);
1727 if (!UpRefs.empty())
1728 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1729 $$ = UndefValue::get($1->get());
1733 | Types SymbolicValueRef {
1734 if (!UpRefs.empty())
1735 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1736 const PointerType *Ty = dyn_cast<PointerType>($1->get());
1738 GEN_ERROR("Global const reference must be a pointer type " + (*$1)->getDescription());
1740 // ConstExprs can exist in the body of a function, thus creating
1741 // GlobalValues whenever they refer to a variable. Because we are in
1742 // the context of a function, getExistingVal will search the functions
1743 // symbol table instead of the module symbol table for the global symbol,
1744 // which throws things all off. To get around this, we just tell
1745 // getExistingVal that we are at global scope here.
1747 Function *SavedCurFn = CurFun.CurrentFunction;
1748 CurFun.CurrentFunction = 0;
1750 Value *V = getExistingVal(Ty, $2);
1753 CurFun.CurrentFunction = SavedCurFn;
1755 // If this is an initializer for a constant pointer, which is referencing a
1756 // (currently) undefined variable, create a stub now that shall be replaced
1757 // in the future with the right type of variable.
1760 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
1761 const PointerType *PT = cast<PointerType>(Ty);
1763 // First check to see if the forward references value is already created!
1764 PerModuleInfo::GlobalRefsType::iterator I =
1765 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
1767 if (I != CurModule.GlobalRefs.end()) {
1768 V = I->second; // Placeholder already exists, use it...
1772 if ($2.Type == ValID::GlobalName)
1773 Name = $2.getName();
1774 else if ($2.Type != ValID::GlobalID)
1775 GEN_ERROR("Invalid reference to global");
1777 // Create the forward referenced global.
1779 if (const FunctionType *FTy =
1780 dyn_cast<FunctionType>(PT->getElementType())) {
1781 GV = new Function(FTy, GlobalValue::ExternalWeakLinkage, Name,
1782 CurModule.CurrentModule);
1784 GV = new GlobalVariable(PT->getElementType(), false,
1785 GlobalValue::ExternalWeakLinkage, 0,
1786 Name, CurModule.CurrentModule);
1789 // Keep track of the fact that we have a forward ref to recycle it
1790 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
1795 $$ = cast<GlobalValue>(V);
1796 delete $1; // Free the type handle
1800 if (!UpRefs.empty())
1801 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1802 if ($1->get() != $2->getType())
1803 GEN_ERROR("Mismatched types for constant expression: " +
1804 (*$1)->getDescription() + " and " + $2->getType()->getDescription());
1809 | Types ZEROINITIALIZER {
1810 if (!UpRefs.empty())
1811 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
1812 const Type *Ty = $1->get();
1813 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
1814 GEN_ERROR("Cannot create a null initialized value of this type");
1815 $$ = Constant::getNullValue(Ty);
1819 | IntType ESINT64VAL { // integral constants
1820 if (!ConstantInt::isValueValidForType($1, $2))
1821 GEN_ERROR("Constant value doesn't fit in type");
1822 $$ = ConstantInt::get($1, $2, true);
1825 | IntType ESAPINTVAL { // arbitrary precision integer constants
1826 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1827 if ($2->getBitWidth() > BitWidth) {
1828 GEN_ERROR("Constant value does not fit in type");
1830 $2->sextOrTrunc(BitWidth);
1831 $$ = ConstantInt::get(*$2);
1835 | IntType EUINT64VAL { // integral constants
1836 if (!ConstantInt::isValueValidForType($1, $2))
1837 GEN_ERROR("Constant value doesn't fit in type");
1838 $$ = ConstantInt::get($1, $2, false);
1841 | IntType EUAPINTVAL { // arbitrary precision integer constants
1842 uint32_t BitWidth = cast<IntegerType>($1)->getBitWidth();
1843 if ($2->getBitWidth() > BitWidth) {
1844 GEN_ERROR("Constant value does not fit in type");
1846 $2->zextOrTrunc(BitWidth);
1847 $$ = ConstantInt::get(*$2);
1851 | INTTYPE TRUETOK { // Boolean constants
1852 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1853 $$ = ConstantInt::getTrue();
1856 | INTTYPE FALSETOK { // Boolean constants
1857 assert(cast<IntegerType>($1)->getBitWidth() == 1 && "Not Bool?");
1858 $$ = ConstantInt::getFalse();
1861 | FPType FPVAL { // Floating point constants
1862 if (!ConstantFP::isValueValidForType($1, *$2))
1863 GEN_ERROR("Floating point constant invalid for type");
1864 // Lexer has no type info, so builds all float and double FP constants
1865 // as double. Fix this here. Long double is done right.
1866 if (&$2->getSemantics()==&APFloat::IEEEdouble && $1==Type::FloatTy)
1867 $2->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven);
1868 $$ = ConstantFP::get($1, *$2);
1874 ConstExpr: CastOps '(' ConstVal TO Types ')' {
1875 if (!UpRefs.empty())
1876 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
1878 const Type *DestTy = $5->get();
1879 if (!CastInst::castIsValid($1, $3, DestTy))
1880 GEN_ERROR("invalid cast opcode for cast from '" +
1881 Val->getType()->getDescription() + "' to '" +
1882 DestTy->getDescription() + "'");
1883 $$ = ConstantExpr::getCast($1, $3, DestTy);
1886 | GETELEMENTPTR '(' ConstVal IndexList ')' {
1887 if (!isa<PointerType>($3->getType()))
1888 GEN_ERROR("GetElementPtr requires a pointer operand");
1891 GetElementPtrInst::getIndexedType($3->getType(), $4->begin(), $4->end(),
1894 GEN_ERROR("Index list invalid for constant getelementptr");
1896 SmallVector<Constant*, 8> IdxVec;
1897 for (unsigned i = 0, e = $4->size(); i != e; ++i)
1898 if (Constant *C = dyn_cast<Constant>((*$4)[i]))
1899 IdxVec.push_back(C);
1901 GEN_ERROR("Indices to constant getelementptr must be constants");
1905 $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size());
1908 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1909 if ($3->getType() != Type::Int1Ty)
1910 GEN_ERROR("Select condition must be of boolean type");
1911 if ($5->getType() != $7->getType())
1912 GEN_ERROR("Select operand types must match");
1913 $$ = ConstantExpr::getSelect($3, $5, $7);
1916 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
1917 if ($3->getType() != $5->getType())
1918 GEN_ERROR("Binary operator types must match");
1920 $$ = ConstantExpr::get($1, $3, $5);
1922 | LogicalOps '(' ConstVal ',' ConstVal ')' {
1923 if ($3->getType() != $5->getType())
1924 GEN_ERROR("Logical operator types must match");
1925 if (!$3->getType()->isInteger()) {
1926 if (Instruction::isShift($1) || !isa<VectorType>($3->getType()) ||
1927 !cast<VectorType>($3->getType())->getElementType()->isInteger())
1928 GEN_ERROR("Logical operator requires integral operands");
1930 $$ = ConstantExpr::get($1, $3, $5);
1933 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
1934 if ($4->getType() != $6->getType())
1935 GEN_ERROR("icmp operand types must match");
1936 $$ = ConstantExpr::getICmp($2, $4, $6);
1938 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
1939 if ($4->getType() != $6->getType())
1940 GEN_ERROR("fcmp operand types must match");
1941 $$ = ConstantExpr::getFCmp($2, $4, $6);
1943 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
1944 if (!ExtractElementInst::isValidOperands($3, $5))
1945 GEN_ERROR("Invalid extractelement operands");
1946 $$ = ConstantExpr::getExtractElement($3, $5);
1949 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1950 if (!InsertElementInst::isValidOperands($3, $5, $7))
1951 GEN_ERROR("Invalid insertelement operands");
1952 $$ = ConstantExpr::getInsertElement($3, $5, $7);
1955 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
1956 if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
1957 GEN_ERROR("Invalid shufflevector operands");
1958 $$ = ConstantExpr::getShuffleVector($3, $5, $7);
1963 // ConstVector - A list of comma separated constants.
1964 ConstVector : ConstVector ',' ConstVal {
1965 ($$ = $1)->push_back($3);
1969 $$ = new std::vector<Constant*>();
1975 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
1976 GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
1979 ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; };
1981 // AliaseeRef - Match either GlobalValue or bitcast to GlobalValue.
1982 AliaseeRef : ResultTypes SymbolicValueRef {
1983 const Type* VTy = $1->get();
1984 Value *V = getVal(VTy, $2);
1986 GlobalValue* Aliasee = dyn_cast<GlobalValue>(V);
1988 GEN_ERROR("Aliases can be created only to global values");
1994 | BITCAST '(' AliaseeRef TO Types ')' {
1996 const Type *DestTy = $5->get();
1997 if (!CastInst::castIsValid($1, $3, DestTy))
1998 GEN_ERROR("invalid cast opcode for cast from '" +
1999 Val->getType()->getDescription() + "' to '" +
2000 DestTy->getDescription() + "'");
2002 $$ = ConstantExpr::getCast($1, $3, DestTy);
2007 //===----------------------------------------------------------------------===//
2008 // Rules to match Modules
2009 //===----------------------------------------------------------------------===//
2011 // Module rule: Capture the result of parsing the whole file into a result
2016 $$ = ParserResult = CurModule.CurrentModule;
2017 CurModule.ModuleDone();
2021 $$ = ParserResult = CurModule.CurrentModule;
2022 CurModule.ModuleDone();
2029 | DefinitionList Definition
2033 : DEFINE { CurFun.isDeclare = false; } Function {
2034 CurFun.FunctionDone();
2037 | DECLARE { CurFun.isDeclare = true; } FunctionProto {
2040 | MODULE ASM_TOK AsmBlock {
2043 | OptLocalAssign TYPE Types {
2044 if (!UpRefs.empty())
2045 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2046 // Eagerly resolve types. This is not an optimization, this is a
2047 // requirement that is due to the fact that we could have this:
2049 // %list = type { %list * }
2050 // %list = type { %list * } ; repeated type decl
2052 // If types are not resolved eagerly, then the two types will not be
2053 // determined to be the same type!
2055 ResolveTypeTo($1, *$3);
2057 if (!setTypeName(*$3, $1) && !$1) {
2059 // If this is a named type that is not a redefinition, add it to the slot
2061 CurModule.Types.push_back(*$3);
2067 | OptLocalAssign TYPE VOID {
2068 ResolveTypeTo($1, $3);
2070 if (!setTypeName($3, $1) && !$1) {
2072 // If this is a named type that is not a redefinition, add it to the slot
2074 CurModule.Types.push_back($3);
2078 | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal
2080 /* "Externally Visible" Linkage */
2082 GEN_ERROR("Global value initializer is not a constant");
2083 CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage,
2084 $2, $4, $5->getType(), $5, $3, $6);
2086 } GlobalVarAttributes {
2089 | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2090 ConstVal OptAddrSpace {
2092 GEN_ERROR("Global value initializer is not a constant");
2093 CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4, $7);
2095 } GlobalVarAttributes {
2098 | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType
2099 Types OptAddrSpace {
2100 if (!UpRefs.empty())
2101 GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription());
2102 CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4, $7);
2105 } GlobalVarAttributes {
2109 | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef {
2116 GEN_ERROR("Alias name cannot be empty");
2118 Constant* Aliasee = $5;
2120 GEN_ERROR(std::string("Invalid aliasee for alias: ") + Name);
2122 GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee,
2123 CurModule.CurrentModule);
2124 GA->setVisibility($2);
2125 InsertValue(GA, CurModule.Values);
2128 // If there was a forward reference of this alias, resolve it now.
2132 ID = ValID::createGlobalName(Name);
2134 ID = ValID::createGlobalID(CurModule.Values.size()-1);
2136 if (GlobalValue *FWGV =
2137 CurModule.GetForwardRefForGlobal(GA->getType(), ID)) {
2138 // Replace uses of the fwdref with the actual alias.
2139 FWGV->replaceAllUsesWith(GA);
2140 if (GlobalVariable *GV = dyn_cast<GlobalVariable>(FWGV))
2141 GV->eraseFromParent();
2143 cast<Function>(FWGV)->eraseFromParent();
2149 | TARGET TargetDefinition {
2152 | DEPLIBS '=' LibrariesDefinition {
2158 AsmBlock : STRINGCONSTANT {
2159 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2160 if (AsmSoFar.empty())
2161 CurModule.CurrentModule->setModuleInlineAsm(*$1);
2163 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+*$1);
2168 TargetDefinition : TRIPLE '=' STRINGCONSTANT {
2169 CurModule.CurrentModule->setTargetTriple(*$3);
2172 | DATALAYOUT '=' STRINGCONSTANT {
2173 CurModule.CurrentModule->setDataLayout(*$3);
2177 LibrariesDefinition : '[' LibList ']';
2179 LibList : LibList ',' STRINGCONSTANT {
2180 CurModule.CurrentModule->addLibrary(*$3);
2185 CurModule.CurrentModule->addLibrary(*$1);
2189 | /* empty: end of list */ {
2194 //===----------------------------------------------------------------------===//
2195 // Rules to match Function Headers
2196 //===----------------------------------------------------------------------===//
2198 ArgListH : ArgListH ',' Types OptParamAttrs OptLocalName {
2199 if (!UpRefs.empty())
2200 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2201 if (*$3 == Type::VoidTy)
2202 GEN_ERROR("void typed arguments are invalid");
2203 ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5;
2208 | Types OptParamAttrs OptLocalName {
2209 if (!UpRefs.empty())
2210 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2211 if (*$1 == Type::VoidTy)
2212 GEN_ERROR("void typed arguments are invalid");
2213 ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3;
2214 $$ = new ArgListType;
2219 ArgList : ArgListH {
2223 | ArgListH ',' DOTDOTDOT {
2225 struct ArgListEntry E;
2226 E.Ty = new PATypeHolder(Type::VoidTy);
2228 E.Attrs = ParamAttr::None;
2233 $$ = new ArgListType;
2234 struct ArgListEntry E;
2235 E.Ty = new PATypeHolder(Type::VoidTy);
2237 E.Attrs = ParamAttr::None;
2246 FunctionHeaderH : OptCallingConv ResultTypes GlobalName '(' ArgList ')'
2247 OptFuncAttrs OptSection OptAlign OptGC {
2248 std::string FunctionName(*$3);
2249 delete $3; // Free strdup'd memory!
2251 // Check the function result for abstractness if this is a define. We should
2252 // have no abstract types at this point
2253 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($2))
2254 GEN_ERROR("Reference to abstract result: "+ $2->get()->getDescription());
2256 std::vector<const Type*> ParamTypeList;
2257 ParamAttrsVector Attrs;
2258 if ($7 != ParamAttr::None) {
2259 ParamAttrsWithIndex PAWI;
2262 Attrs.push_back(PAWI);
2264 if ($5) { // If there are arguments...
2266 for (ArgListType::iterator I = $5->begin(); I != $5->end(); ++I, ++index) {
2267 const Type* Ty = I->Ty->get();
2268 if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty))
2269 GEN_ERROR("Reference to abstract argument: " + Ty->getDescription());
2270 ParamTypeList.push_back(Ty);
2271 if (Ty != Type::VoidTy)
2272 if (I->Attrs != ParamAttr::None) {
2273 ParamAttrsWithIndex PAWI;
2275 PAWI.attrs = I->Attrs;
2276 Attrs.push_back(PAWI);
2281 bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
2282 if (isVarArg) ParamTypeList.pop_back();
2284 const ParamAttrsList *PAL = 0;
2286 PAL = ParamAttrsList::get(Attrs);
2288 FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg);
2289 const PointerType *PFT = PointerType::getUnqual(FT);
2293 if (!FunctionName.empty()) {
2294 ID = ValID::createGlobalName((char*)FunctionName.c_str());
2296 ID = ValID::createGlobalID(CurModule.Values.size());
2300 // See if this function was forward referenced. If so, recycle the object.
2301 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2302 // Move the function to the end of the list, from whereever it was
2303 // previously inserted.
2304 Fn = cast<Function>(FWRef);
2305 assert(!Fn->getParamAttrs() && "Forward reference has parameter attributes!");
2306 CurModule.CurrentModule->getFunctionList().remove(Fn);
2307 CurModule.CurrentModule->getFunctionList().push_back(Fn);
2308 } else if (!FunctionName.empty() && // Merge with an earlier prototype?
2309 (Fn = CurModule.CurrentModule->getFunction(FunctionName))) {
2310 if (Fn->getFunctionType() != FT ) {
2311 // The existing function doesn't have the same type. This is an overload
2313 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2314 } else if (Fn->getParamAttrs() != PAL) {
2315 // The existing function doesn't have the same parameter attributes.
2316 // This is an overload error.
2317 GEN_ERROR("Overload of function '" + FunctionName + "' not permitted.");
2318 } else if (!CurFun.isDeclare && !Fn->isDeclaration()) {
2319 // Neither the existing or the current function is a declaration and they
2320 // have the same name and same type. Clearly this is a redefinition.
2321 GEN_ERROR("Redefinition of function '" + FunctionName + "'");
2322 } else if (Fn->isDeclaration()) {
2323 // Make sure to strip off any argument names so we can't get conflicts.
2324 for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
2328 } else { // Not already defined?
2329 Fn = new Function(FT, GlobalValue::ExternalWeakLinkage, FunctionName,
2330 CurModule.CurrentModule);
2331 InsertValue(Fn, CurModule.Values);
2334 CurFun.FunctionStart(Fn);
2336 if (CurFun.isDeclare) {
2337 // If we have declaration, always overwrite linkage. This will allow us to
2338 // correctly handle cases, when pointer to function is passed as argument to
2339 // another function.
2340 Fn->setLinkage(CurFun.Linkage);
2341 Fn->setVisibility(CurFun.Visibility);
2343 Fn->setCallingConv($1);
2344 Fn->setParamAttrs(PAL);
2345 Fn->setAlignment($9);
2347 Fn->setSection(*$8);
2351 Fn->setCollector($10->c_str());
2355 // Add all of the arguments we parsed to the function...
2356 if ($5) { // Is null if empty...
2357 if (isVarArg) { // Nuke the last entry
2358 assert($5->back().Ty->get() == Type::VoidTy && $5->back().Name == 0 &&
2359 "Not a varargs marker!");
2360 delete $5->back().Ty;
2361 $5->pop_back(); // Delete the last entry
2363 Function::arg_iterator ArgIt = Fn->arg_begin();
2364 Function::arg_iterator ArgEnd = Fn->arg_end();
2366 for (ArgListType::iterator I = $5->begin();
2367 I != $5->end() && ArgIt != ArgEnd; ++I, ++ArgIt) {
2368 delete I->Ty; // Delete the typeholder...
2369 setValueName(ArgIt, I->Name); // Insert arg into symtab...
2375 delete $5; // We're now done with the argument list
2380 BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
2382 FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN {
2383 $$ = CurFun.CurrentFunction;
2385 // Make sure that we keep track of the linkage type even if there was a
2386 // previous "declare".
2388 $$->setVisibility($2);
2391 END : ENDTOK | '}'; // Allow end of '}' to end a function
2393 Function : BasicBlockList END {
2398 FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH {
2399 CurFun.CurrentFunction->setLinkage($1);
2400 CurFun.CurrentFunction->setVisibility($2);
2401 $$ = CurFun.CurrentFunction;
2402 CurFun.FunctionDone();
2406 //===----------------------------------------------------------------------===//
2407 // Rules to match Basic Blocks
2408 //===----------------------------------------------------------------------===//
2410 OptSideEffect : /* empty */ {
2419 ConstValueRef : ESINT64VAL { // A reference to a direct constant
2420 $$ = ValID::create($1);
2424 $$ = ValID::create($1);
2427 | FPVAL { // Perhaps it's an FP constant?
2428 $$ = ValID::create($1);
2432 $$ = ValID::create(ConstantInt::getTrue());
2436 $$ = ValID::create(ConstantInt::getFalse());
2440 $$ = ValID::createNull();
2444 $$ = ValID::createUndef();
2447 | ZEROINITIALIZER { // A vector zero constant.
2448 $$ = ValID::createZeroInit();
2451 | '<' ConstVector '>' { // Nonempty unsized packed vector
2452 const Type *ETy = (*$2)[0]->getType();
2453 int NumElements = $2->size();
2455 VectorType* pt = VectorType::get(ETy, NumElements);
2456 PATypeHolder* PTy = new PATypeHolder(
2464 // Verify all elements are correct type!
2465 for (unsigned i = 0; i < $2->size(); i++) {
2466 if (ETy != (*$2)[i]->getType())
2467 GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
2468 ETy->getDescription() +"' as required!\nIt is of type '" +
2469 (*$2)[i]->getType()->getDescription() + "'.");
2472 $$ = ValID::create(ConstantVector::get(pt, *$2));
2473 delete PTy; delete $2;
2477 $$ = ValID::create($1);
2480 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
2481 $$ = ValID::createInlineAsm(*$3, *$5, $2);
2487 // SymbolicValueRef - Reference to one of two ways of symbolically refering to
2490 SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...?
2491 $$ = ValID::createLocalID($1);
2495 $$ = ValID::createGlobalID($1);
2498 | LocalName { // Is it a named reference...?
2499 $$ = ValID::createLocalName(*$1);
2503 | GlobalName { // Is it a named reference...?
2504 $$ = ValID::createGlobalName(*$1);
2509 // ValueRef - A reference to a definition... either constant or symbolic
2510 ValueRef : SymbolicValueRef | ConstValueRef;
2513 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
2514 // type immediately preceeds the value reference, and allows complex constant
2515 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
2516 ResolvedVal : Types ValueRef {
2517 if (!UpRefs.empty())
2518 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2519 $$ = getVal(*$1, $2);
2525 BasicBlockList : BasicBlockList BasicBlock {
2529 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
2535 // Basic blocks are terminated by branching instructions:
2536 // br, br/cc, switch, ret
2538 BasicBlock : InstructionList OptLocalAssign BBTerminatorInst {
2539 setValueName($3, $2);
2542 $1->getInstList().push_back($3);
2547 InstructionList : InstructionList Inst {
2548 if (CastInst *CI1 = dyn_cast<CastInst>($2))
2549 if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0)))
2550 if (CI2->getParent() == 0)
2551 $1->getInstList().push_back(CI2);
2552 $1->getInstList().push_back($2);
2556 | /* empty */ { // Empty space between instruction lists
2557 $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum));
2560 | LABELSTR { // Labelled (named) basic block
2561 $$ = defineBBVal(ValID::createLocalName(*$1));
2567 BBTerminatorInst : RET ResolvedVal { // Return with a result...
2568 $$ = new ReturnInst($2);
2571 | RET VOID { // Return with no result...
2572 $$ = new ReturnInst();
2575 | BR LABEL ValueRef { // Unconditional Branch...
2576 BasicBlock* tmpBB = getBBVal($3);
2578 $$ = new BranchInst(tmpBB);
2579 } // Conditional Branch...
2580 | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
2581 assert(cast<IntegerType>($2)->getBitWidth() == 1 && "Not Bool?");
2582 BasicBlock* tmpBBA = getBBVal($6);
2584 BasicBlock* tmpBBB = getBBVal($9);
2586 Value* tmpVal = getVal(Type::Int1Ty, $3);
2588 $$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
2590 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
2591 Value* tmpVal = getVal($2, $3);
2593 BasicBlock* tmpBB = getBBVal($6);
2595 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
2598 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
2600 for (; I != E; ++I) {
2601 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
2602 S->addCase(CI, I->second);
2604 GEN_ERROR("Switch case is constant, but not a simple integer");
2609 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
2610 Value* tmpVal = getVal($2, $3);
2612 BasicBlock* tmpBB = getBBVal($6);
2614 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
2618 | INVOKE OptCallingConv ResultTypes ValueRef '(' ParamList ')' OptFuncAttrs
2619 TO LABEL ValueRef UNWIND LABEL ValueRef {
2621 // Handle the short syntax
2622 const PointerType *PFTy = 0;
2623 const FunctionType *Ty = 0;
2624 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2625 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2626 // Pull out the types of all of the arguments...
2627 std::vector<const Type*> ParamTypes;
2628 ParamList::iterator I = $6->begin(), E = $6->end();
2629 for (; I != E; ++I) {
2630 const Type *Ty = I->Val->getType();
2631 if (Ty == Type::VoidTy)
2632 GEN_ERROR("Short call syntax cannot be used with varargs");
2633 ParamTypes.push_back(Ty);
2635 Ty = FunctionType::get($3->get(), ParamTypes, false);
2636 PFTy = PointerType::getUnqual(Ty);
2641 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2643 BasicBlock *Normal = getBBVal($11);
2645 BasicBlock *Except = getBBVal($14);
2648 ParamAttrsVector Attrs;
2649 if ($8 != ParamAttr::None) {
2650 ParamAttrsWithIndex PAWI; PAWI.index = 0; PAWI.attrs = $8;
2651 Attrs.push_back(PAWI);
2654 // Check the arguments
2656 if ($6->empty()) { // Has no arguments?
2657 // Make sure no arguments is a good thing!
2658 if (Ty->getNumParams() != 0)
2659 GEN_ERROR("No arguments passed to a function that "
2660 "expects arguments");
2661 } else { // Has arguments?
2662 // Loop through FunctionType's arguments and ensure they are specified
2664 FunctionType::param_iterator I = Ty->param_begin();
2665 FunctionType::param_iterator E = Ty->param_end();
2666 ParamList::iterator ArgI = $6->begin(), ArgE = $6->end();
2669 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
2670 if (ArgI->Val->getType() != *I)
2671 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
2672 (*I)->getDescription() + "'");
2673 Args.push_back(ArgI->Val);
2674 if (ArgI->Attrs != ParamAttr::None) {
2675 ParamAttrsWithIndex PAWI;
2677 PAWI.attrs = ArgI->Attrs;
2678 Attrs.push_back(PAWI);
2682 if (Ty->isVarArg()) {
2684 for (; ArgI != ArgE; ++ArgI, ++index) {
2685 Args.push_back(ArgI->Val); // push the remaining varargs
2686 if (ArgI->Attrs != ParamAttr::None) {
2687 ParamAttrsWithIndex PAWI;
2689 PAWI.attrs = ArgI->Attrs;
2690 Attrs.push_back(PAWI);
2693 } else if (I != E || ArgI != ArgE)
2694 GEN_ERROR("Invalid number of parameters detected");
2697 const ParamAttrsList *PAL = 0;
2699 PAL = ParamAttrsList::get(Attrs);
2701 // Create the InvokeInst
2702 InvokeInst *II = new InvokeInst(V, Normal, Except, Args.begin(), Args.end());
2703 II->setCallingConv($2);
2704 II->setParamAttrs(PAL);
2710 $$ = new UnwindInst();
2714 $$ = new UnreachableInst();
2720 JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
2722 Constant *V = cast<Constant>(getExistingVal($2, $3));
2725 GEN_ERROR("May only switch on a constant pool value");
2727 BasicBlock* tmpBB = getBBVal($6);
2729 $$->push_back(std::make_pair(V, tmpBB));
2731 | IntType ConstValueRef ',' LABEL ValueRef {
2732 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
2733 Constant *V = cast<Constant>(getExistingVal($1, $2));
2737 GEN_ERROR("May only switch on a constant pool value");
2739 BasicBlock* tmpBB = getBBVal($5);
2741 $$->push_back(std::make_pair(V, tmpBB));
2744 Inst : OptLocalAssign InstVal {
2745 // Is this definition named?? if so, assign the name...
2746 setValueName($2, $1);
2754 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
2755 if (!UpRefs.empty())
2756 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2757 $$ = new std::list<std::pair<Value*, BasicBlock*> >();
2758 Value* tmpVal = getVal(*$1, $3);
2760 BasicBlock* tmpBB = getBBVal($5);
2762 $$->push_back(std::make_pair(tmpVal, tmpBB));
2765 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
2767 Value* tmpVal = getVal($1->front().first->getType(), $4);
2769 BasicBlock* tmpBB = getBBVal($6);
2771 $1->push_back(std::make_pair(tmpVal, tmpBB));
2775 ParamList : Types OptParamAttrs ValueRef OptParamAttrs {
2776 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2777 if (!UpRefs.empty())
2778 GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
2779 // Used for call and invoke instructions
2780 $$ = new ParamList();
2781 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getVal($1->get(), $3);
2786 | LABEL OptParamAttrs ValueRef OptParamAttrs {
2787 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2788 // Labels are only valid in ASMs
2789 $$ = new ParamList();
2790 ParamListEntry E; E.Attrs = $2 | $4; E.Val = getBBVal($3);
2794 | ParamList ',' Types OptParamAttrs ValueRef OptParamAttrs {
2795 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2796 if (!UpRefs.empty())
2797 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2799 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getVal($3->get(), $5);
2804 | ParamList ',' LABEL OptParamAttrs ValueRef OptParamAttrs {
2805 // FIXME: Remove trailing OptParamAttrs in LLVM 3.0, it was a mistake in 2.0
2807 ParamListEntry E; E.Attrs = $4 | $6; E.Val = getBBVal($5);
2811 | /*empty*/ { $$ = new ParamList(); };
2813 IndexList // Used for gep instructions and constant expressions
2814 : /*empty*/ { $$ = new std::vector<Value*>(); }
2815 | IndexList ',' ResolvedVal {
2822 OptTailCall : TAIL CALL {
2831 InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
2832 if (!UpRefs.empty())
2833 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2834 if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
2835 !isa<VectorType>((*$2).get()))
2837 "Arithmetic operator requires integer, FP, or packed operands");
2838 Value* val1 = getVal(*$2, $3);
2840 Value* val2 = getVal(*$2, $5);
2842 $$ = BinaryOperator::create($1, val1, val2);
2844 GEN_ERROR("binary operator returned null");
2847 | LogicalOps Types ValueRef ',' ValueRef {
2848 if (!UpRefs.empty())
2849 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
2850 if (!(*$2)->isInteger()) {
2851 if (Instruction::isShift($1) || !isa<VectorType>($2->get()) ||
2852 !cast<VectorType>($2->get())->getElementType()->isInteger())
2853 GEN_ERROR("Logical operator requires integral operands");
2855 Value* tmpVal1 = getVal(*$2, $3);
2857 Value* tmpVal2 = getVal(*$2, $5);
2859 $$ = BinaryOperator::create($1, tmpVal1, tmpVal2);
2861 GEN_ERROR("binary operator returned null");
2864 | ICMP IPredicates Types ValueRef ',' ValueRef {
2865 if (!UpRefs.empty())
2866 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2867 if (isa<VectorType>((*$3).get()))
2868 GEN_ERROR("Vector types not supported by icmp instruction");
2869 Value* tmpVal1 = getVal(*$3, $4);
2871 Value* tmpVal2 = getVal(*$3, $6);
2873 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2875 GEN_ERROR("icmp operator returned null");
2878 | FCMP FPredicates Types ValueRef ',' ValueRef {
2879 if (!UpRefs.empty())
2880 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
2881 if (isa<VectorType>((*$3).get()))
2882 GEN_ERROR("Vector types not supported by fcmp instruction");
2883 Value* tmpVal1 = getVal(*$3, $4);
2885 Value* tmpVal2 = getVal(*$3, $6);
2887 $$ = CmpInst::create($1, $2, tmpVal1, tmpVal2);
2889 GEN_ERROR("fcmp operator returned null");
2892 | CastOps ResolvedVal TO Types {
2893 if (!UpRefs.empty())
2894 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2896 const Type* DestTy = $4->get();
2897 if (!CastInst::castIsValid($1, Val, DestTy))
2898 GEN_ERROR("invalid cast opcode for cast from '" +
2899 Val->getType()->getDescription() + "' to '" +
2900 DestTy->getDescription() + "'");
2901 $$ = CastInst::create($1, Val, DestTy);
2904 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2905 if ($2->getType() != Type::Int1Ty)
2906 GEN_ERROR("select condition must be boolean");
2907 if ($4->getType() != $6->getType())
2908 GEN_ERROR("select value types should match");
2909 $$ = new SelectInst($2, $4, $6);
2912 | VAARG ResolvedVal ',' Types {
2913 if (!UpRefs.empty())
2914 GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription());
2915 $$ = new VAArgInst($2, *$4);
2919 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
2920 if (!ExtractElementInst::isValidOperands($2, $4))
2921 GEN_ERROR("Invalid extractelement operands");
2922 $$ = new ExtractElementInst($2, $4);
2925 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2926 if (!InsertElementInst::isValidOperands($2, $4, $6))
2927 GEN_ERROR("Invalid insertelement operands");
2928 $$ = new InsertElementInst($2, $4, $6);
2931 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
2932 if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
2933 GEN_ERROR("Invalid shufflevector operands");
2934 $$ = new ShuffleVectorInst($2, $4, $6);
2938 const Type *Ty = $2->front().first->getType();
2939 if (!Ty->isFirstClassType())
2940 GEN_ERROR("PHI node operands must be of first class type");
2941 $$ = new PHINode(Ty);
2942 ((PHINode*)$$)->reserveOperandSpace($2->size());
2943 while ($2->begin() != $2->end()) {
2944 if ($2->front().first->getType() != Ty)
2945 GEN_ERROR("All elements of a PHI node must be of the same type");
2946 cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
2949 delete $2; // Free the list...
2952 | OptTailCall OptCallingConv ResultTypes ValueRef '(' ParamList ')'
2955 // Handle the short syntax
2956 const PointerType *PFTy = 0;
2957 const FunctionType *Ty = 0;
2958 if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
2959 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
2960 // Pull out the types of all of the arguments...
2961 std::vector<const Type*> ParamTypes;
2962 ParamList::iterator I = $6->begin(), E = $6->end();
2963 for (; I != E; ++I) {
2964 const Type *Ty = I->Val->getType();
2965 if (Ty == Type::VoidTy)
2966 GEN_ERROR("Short call syntax cannot be used with varargs");
2967 ParamTypes.push_back(Ty);
2969 Ty = FunctionType::get($3->get(), ParamTypes, false);
2970 PFTy = PointerType::getUnqual(Ty);
2973 Value *V = getVal(PFTy, $4); // Get the function we're calling...
2976 // Check for call to invalid intrinsic to avoid crashing later.
2977 if (Function *theF = dyn_cast<Function>(V)) {
2978 if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) &&
2979 (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) &&
2980 !theF->getIntrinsicID(true))
2981 GEN_ERROR("Call to invalid LLVM intrinsic function '" +
2982 theF->getName() + "'");
2985 // Set up the ParamAttrs for the function
2986 ParamAttrsVector Attrs;
2987 if ($8 != ParamAttr::None) {
2988 ParamAttrsWithIndex PAWI;
2991 Attrs.push_back(PAWI);
2993 // Check the arguments
2995 if ($6->empty()) { // Has no arguments?
2996 // Make sure no arguments is a good thing!
2997 if (Ty->getNumParams() != 0)
2998 GEN_ERROR("No arguments passed to a function that "
2999 "expects arguments");
3000 } else { // Has arguments?
3001 // Loop through FunctionType's arguments and ensure they are specified
3002 // correctly. Also, gather any parameter attributes.
3003 FunctionType::param_iterator I = Ty->param_begin();
3004 FunctionType::param_iterator E = Ty->param_end();
3005 ParamList::iterator ArgI = $6->begin(), ArgE = $6->end();
3008 for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) {
3009 if (ArgI->Val->getType() != *I)
3010 GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" +
3011 (*I)->getDescription() + "'");
3012 Args.push_back(ArgI->Val);
3013 if (ArgI->Attrs != ParamAttr::None) {
3014 ParamAttrsWithIndex PAWI;
3016 PAWI.attrs = ArgI->Attrs;
3017 Attrs.push_back(PAWI);
3020 if (Ty->isVarArg()) {
3022 for (; ArgI != ArgE; ++ArgI, ++index) {
3023 Args.push_back(ArgI->Val); // push the remaining varargs
3024 if (ArgI->Attrs != ParamAttr::None) {
3025 ParamAttrsWithIndex PAWI;
3027 PAWI.attrs = ArgI->Attrs;
3028 Attrs.push_back(PAWI);
3031 } else if (I != E || ArgI != ArgE)
3032 GEN_ERROR("Invalid number of parameters detected");
3035 // Finish off the ParamAttrs and check them
3036 const ParamAttrsList *PAL = 0;
3038 PAL = ParamAttrsList::get(Attrs);
3040 // Create the call node
3041 CallInst *CI = new CallInst(V, Args.begin(), Args.end());
3042 CI->setTailCall($1);
3043 CI->setCallingConv($2);
3044 CI->setParamAttrs(PAL);
3055 OptVolatile : VOLATILE {
3066 MemoryInst : MALLOC Types OptCAlign {
3067 if (!UpRefs.empty())
3068 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3069 $$ = new MallocInst(*$2, 0, $3);
3073 | MALLOC Types ',' INTTYPE ValueRef OptCAlign {
3074 if (!UpRefs.empty())
3075 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3076 Value* tmpVal = getVal($4, $5);
3078 $$ = new MallocInst(*$2, tmpVal, $6);
3081 | ALLOCA Types OptCAlign {
3082 if (!UpRefs.empty())
3083 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3084 $$ = new AllocaInst(*$2, 0, $3);
3088 | ALLOCA Types ',' INTTYPE ValueRef OptCAlign {
3089 if (!UpRefs.empty())
3090 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3091 Value* tmpVal = getVal($4, $5);
3093 $$ = new AllocaInst(*$2, tmpVal, $6);
3096 | FREE ResolvedVal {
3097 if (!isa<PointerType>($2->getType()))
3098 GEN_ERROR("Trying to free nonpointer type " +
3099 $2->getType()->getDescription() + "");
3100 $$ = new FreeInst($2);
3104 | OptVolatile LOAD Types ValueRef OptCAlign {
3105 if (!UpRefs.empty())
3106 GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription());
3107 if (!isa<PointerType>($3->get()))
3108 GEN_ERROR("Can't load from nonpointer type: " +
3109 (*$3)->getDescription());
3110 if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
3111 GEN_ERROR("Can't load from pointer of non-first-class type: " +
3112 (*$3)->getDescription());
3113 Value* tmpVal = getVal(*$3, $4);
3115 $$ = new LoadInst(tmpVal, "", $1, $5);
3118 | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign {
3119 if (!UpRefs.empty())
3120 GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription());
3121 const PointerType *PT = dyn_cast<PointerType>($5->get());
3123 GEN_ERROR("Can't store to a nonpointer type: " +
3124 (*$5)->getDescription());
3125 const Type *ElTy = PT->getElementType();
3126 if (ElTy != $3->getType())
3127 GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
3128 "' into space of type '" + ElTy->getDescription() + "'");
3130 Value* tmpVal = getVal(*$5, $6);
3132 $$ = new StoreInst($3, tmpVal, $1, $7);
3135 | GETRESULT Types LocalName ',' EUINT64VAL {
3136 ValID TmpVID = ValID::createLocalName(*$3);
3137 Value *TmpVal = getVal($2->get(), TmpVID);
3138 if (!GetResultInst::isValidOperands(TmpVal, $5))
3139 GEN_ERROR("Invalid getresult operands");
3140 $$ = new GetResultInst(TmpVal, $5);
3143 | GETELEMENTPTR Types ValueRef IndexList {
3144 if (!UpRefs.empty())
3145 GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription());
3146 if (!isa<PointerType>($2->get()))
3147 GEN_ERROR("getelementptr insn requires pointer operand");
3149 if (!GetElementPtrInst::getIndexedType(*$2, $4->begin(), $4->end(), true))
3150 GEN_ERROR("Invalid getelementptr indices for type '" +
3151 (*$2)->getDescription()+ "'");
3152 Value* tmpVal = getVal(*$2, $3);
3154 $$ = new GetElementPtrInst(tmpVal, $4->begin(), $4->end());
3162 // common code from the two 'RunVMAsmParser' functions
3163 static Module* RunParser(Module * M) {
3164 CurModule.CurrentModule = M;
3165 // Check to make sure the parser succeeded
3168 delete ParserResult;
3172 // Emit an error if there are any unresolved types left.
3173 if (!CurModule.LateResolveTypes.empty()) {
3174 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
3175 if (DID.Type == ValID::LocalName) {
3176 GenerateError("Undefined type remains at eof: '"+DID.getName() + "'");
3178 GenerateError("Undefined type remains at eof: #" + itostr(DID.Num));
3181 delete ParserResult;
3185 // Emit an error if there are any unresolved values left.
3186 if (!CurModule.LateResolveValues.empty()) {
3187 Value *V = CurModule.LateResolveValues.back();
3188 std::map<Value*, std::pair<ValID, int> >::iterator I =
3189 CurModule.PlaceHolderInfo.find(V);
3191 if (I != CurModule.PlaceHolderInfo.end()) {
3192 ValID &DID = I->second.first;
3193 if (DID.Type == ValID::LocalName) {
3194 GenerateError("Undefined value remains at eof: "+DID.getName() + "'");
3196 GenerateError("Undefined value remains at eof: #" + itostr(DID.Num));
3199 delete ParserResult;
3204 // Check to make sure that parsing produced a result
3208 // Reset ParserResult variable while saving its value for the result.
3209 Module *Result = ParserResult;
3215 void llvm::GenerateError(const std::string &message, int LineNo) {
3216 if (LineNo == -1) LineNo = LLLgetLineNo();
3217 // TODO: column number in exception
3219 TheParseError->setError(LLLgetFilename(), message, LineNo);
3223 int yyerror(const char *ErrorMsg) {
3224 std::string where = LLLgetFilename() + ":" + utostr(LLLgetLineNo()) + ": ";
3225 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3226 if (yychar != YYEMPTY && yychar != 0) {
3227 errMsg += " while reading token: '";
3228 errMsg += std::string(LLLgetTokenStart(),
3229 LLLgetTokenStart()+LLLgetTokenLength()) + "'";
3231 GenerateError(errMsg);