1 //===-- llvmAsmParser.y - Parser for llvm assembly files --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the bison parser for LLVM assembly languages files.
12 //===----------------------------------------------------------------------===//
15 #include "UpgradeInternals.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/InlineAsm.h"
18 #include "llvm/Instructions.h"
19 #include "llvm/Module.h"
20 #include "llvm/ValueSymbolTable.h"
21 #include "llvm/Support/GetElementPtrTypeIterator.h"
22 #include "llvm/ADT/STLExtras.h"
23 #include "llvm/Support/MathExtras.h"
30 // DEBUG_UPREFS - Define this symbol if you want to enable debugging output
31 // relating to upreferences in the input stream.
33 //#define DEBUG_UPREFS 1
35 #define UR_OUT(X) std::cerr << X
40 #define YYERROR_VERBOSE 1
41 #define YYINCLUDED_STDLIB_H
47 int yyerror(const char*);
48 static void warning(const std::string& WarningMsg);
52 std::istream* LexInput;
53 static std::string CurFilename;
55 // This bool controls whether attributes are ever added to function declarations
56 // definitions and calls.
57 static bool AddAttributes = false;
59 static Module *ParserResult;
60 static bool ObsoleteVarArgs;
61 static bool NewVarArgs;
62 static BasicBlock *CurBB;
63 static GlobalVariable *CurGV;
65 // This contains info used when building the body of a function. It is
66 // destroyed when the function is completed.
68 typedef std::vector<Value *> ValueList; // Numbered defs
70 typedef std::pair<std::string,TypeInfo> RenameMapKey;
71 typedef std::map<RenameMapKey,std::string> RenameMapType;
74 ResolveDefinitions(std::map<const Type *,ValueList> &LateResolvers,
75 std::map<const Type *,ValueList> *FutureLateResolvers = 0);
77 static struct PerModuleInfo {
78 Module *CurrentModule;
79 std::map<const Type *, ValueList> Values; // Module level numbered definitions
80 std::map<const Type *,ValueList> LateResolveValues;
81 std::vector<PATypeHolder> Types;
82 std::vector<Signedness> TypeSigns;
83 std::map<std::string,Signedness> NamedTypeSigns;
84 std::map<std::string,Signedness> NamedValueSigns;
85 std::map<ValID, PATypeHolder> LateResolveTypes;
86 static Module::Endianness Endian;
87 static Module::PointerSize PointerSize;
88 RenameMapType RenameMap;
90 /// PlaceHolderInfo - When temporary placeholder objects are created, remember
91 /// how they were referenced and on which line of the input they came from so
92 /// that we can resolve them later and print error messages as appropriate.
93 std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
95 // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
96 // references to global values. Global values may be referenced before they
97 // are defined, and if so, the temporary object that they represent is held
98 // here. This is used for forward references of GlobalValues.
100 typedef std::map<std::pair<const PointerType *, ValID>, GlobalValue*>
102 GlobalRefsType GlobalRefs;
105 // If we could not resolve some functions at function compilation time
106 // (calls to functions before they are defined), resolve them now... Types
107 // are resolved when the constant pool has been completely parsed.
109 ResolveDefinitions(LateResolveValues);
111 // Check to make sure that all global value forward references have been
114 if (!GlobalRefs.empty()) {
115 std::string UndefinedReferences = "Unresolved global references exist:\n";
117 for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
119 UndefinedReferences += " " + I->first.first->getDescription() + " " +
120 I->first.second.getName() + "\n";
122 error(UndefinedReferences);
126 if (CurrentModule->getDataLayout().empty()) {
127 std::string dataLayout;
128 if (Endian != Module::AnyEndianness)
129 dataLayout.append(Endian == Module::BigEndian ? "E" : "e");
130 if (PointerSize != Module::AnyPointerSize) {
131 if (!dataLayout.empty())
133 dataLayout.append(PointerSize == Module::Pointer64 ?
134 "p:64:64" : "p:32:32");
136 CurrentModule->setDataLayout(dataLayout);
139 Values.clear(); // Clear out function local definitions
142 NamedTypeSigns.clear();
143 NamedValueSigns.clear();
147 // GetForwardRefForGlobal - Check to see if there is a forward reference
148 // for this global. If so, remove it from the GlobalRefs map and return it.
149 // If not, just return null.
150 GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
151 // Check to see if there is a forward reference to this global variable...
152 // if there is, eliminate it and patch the reference to use the new def'n.
153 GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
154 GlobalValue *Ret = 0;
155 if (I != GlobalRefs.end()) {
161 void setEndianness(Module::Endianness E) { Endian = E; }
162 void setPointerSize(Module::PointerSize sz) { PointerSize = sz; }
165 Module::Endianness PerModuleInfo::Endian = Module::AnyEndianness;
166 Module::PointerSize PerModuleInfo::PointerSize = Module::AnyPointerSize;
168 static struct PerFunctionInfo {
169 Function *CurrentFunction; // Pointer to current function being created
171 std::map<const Type*, ValueList> Values; // Keep track of #'d definitions
172 std::map<const Type*, ValueList> LateResolveValues;
173 bool isDeclare; // Is this function a forward declararation?
174 GlobalValue::LinkageTypes Linkage;// Linkage for forward declaration.
176 /// BBForwardRefs - When we see forward references to basic blocks, keep
177 /// track of them here.
178 std::map<BasicBlock*, std::pair<ValID, int> > BBForwardRefs;
179 std::vector<BasicBlock*> NumberedBlocks;
180 RenameMapType RenameMap;
183 inline PerFunctionInfo() {
186 Linkage = GlobalValue::ExternalLinkage;
189 inline void FunctionStart(Function *M) {
194 void FunctionDone() {
195 NumberedBlocks.clear();
197 // Any forward referenced blocks left?
198 if (!BBForwardRefs.empty()) {
199 error("Undefined reference to label " +
200 BBForwardRefs.begin()->first->getName());
204 // Resolve all forward references now.
205 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
207 Values.clear(); // Clear out function local definitions
211 Linkage = GlobalValue::ExternalLinkage;
213 } CurFun; // Info for the current function...
215 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
217 /// This function is just a utility to make a Key value for the rename map.
218 /// The Key is a combination of the name, type, Signedness of the original
219 /// value (global/function). This just constructs the key and ensures that
220 /// named Signedness values are resolved to the actual Signedness.
221 /// @brief Make a key for the RenameMaps
222 static RenameMapKey makeRenameMapKey(const std::string &Name, const Type* Ty,
223 const Signedness &Sign) {
227 // Don't allow Named Signedness nodes because they won't match. The actual
228 // Signedness must be looked up in the NamedTypeSigns map.
229 TI.S.copy(CurModule.NamedTypeSigns[Sign.getName()]);
232 return std::make_pair(Name, TI);
236 //===----------------------------------------------------------------------===//
237 // Code to handle definitions of all the types
238 //===----------------------------------------------------------------------===//
240 static int InsertValue(Value *V,
241 std::map<const Type*,ValueList> &ValueTab = CurFun.Values) {
242 if (V->hasName()) return -1; // Is this a numbered definition?
244 // Yes, insert the value into the value table...
245 ValueList &List = ValueTab[V->getType()];
247 return List.size()-1;
250 static const Type *getType(const ValID &D, bool DoNotImprovise = false) {
252 case ValID::NumberVal: // Is it a numbered definition?
253 // Module constants occupy the lowest numbered slots...
254 if ((unsigned)D.Num < CurModule.Types.size()) {
255 return CurModule.Types[(unsigned)D.Num];
258 case ValID::NameVal: // Is it a named definition?
259 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
264 error("Internal parser error: Invalid symbol type reference");
268 // If we reached here, we referenced either a symbol that we don't know about
269 // or an id number that hasn't been read yet. We may be referencing something
270 // forward, so just create an entry to be resolved later and get to it...
272 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
274 if (inFunctionScope()) {
275 if (D.Type == ValID::NameVal) {
276 error("Reference to an undefined type: '" + D.getName() + "'");
279 error("Reference to an undefined type: #" + itostr(D.Num));
284 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
285 if (I != CurModule.LateResolveTypes.end())
288 Type *Typ = OpaqueType::get();
289 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
293 /// This is like the getType method except that instead of looking up the type
294 /// for a given ID, it looks up that type's sign.
295 /// @brief Get the signedness of a referenced type
296 static Signedness getTypeSign(const ValID &D) {
298 case ValID::NumberVal: // Is it a numbered definition?
299 // Module constants occupy the lowest numbered slots...
300 if ((unsigned)D.Num < CurModule.TypeSigns.size()) {
301 return CurModule.TypeSigns[(unsigned)D.Num];
304 case ValID::NameVal: { // Is it a named definition?
305 std::map<std::string,Signedness>::const_iterator I =
306 CurModule.NamedTypeSigns.find(D.Name);
307 if (I != CurModule.NamedTypeSigns.end())
309 // Perhaps its a named forward .. just cache the name
317 // If we don't find it, its signless
323 /// This function is analagous to getElementType in LLVM. It provides the same
324 /// function except that it looks up the Signedness instead of the type. This is
325 /// used when processing GEP instructions that need to extract the type of an
326 /// indexed struct/array/ptr member.
327 /// @brief Look up an element's sign.
328 static Signedness getElementSign(const ValueInfo& VI,
329 const std::vector<Value*> &Indices) {
330 const Type *Ptr = VI.V->getType();
331 assert(isa<PointerType>(Ptr) && "Need pointer type");
335 while (const CompositeType *CT = dyn_cast<CompositeType>(Ptr)) {
336 if (CurIdx == Indices.size())
339 Value *Index = Indices[CurIdx++];
340 assert(!isa<PointerType>(CT) || CurIdx == 1 && "Invalid type");
341 Ptr = CT->getTypeAtIndex(Index);
342 if (const Type* Ty = Ptr->getForwardedType())
344 assert(S.isComposite() && "Bad Signedness type");
345 if (isa<StructType>(CT)) {
346 S = S.get(cast<ConstantInt>(Index)->getZExtValue());
351 S = CurModule.NamedTypeSigns[S.getName()];
354 Result.makeComposite(S);
358 /// This function just translates a ConstantInfo into a ValueInfo and calls
359 /// getElementSign(ValueInfo,...). Its just a convenience.
360 /// @brief ConstantInfo version of getElementSign.
361 static Signedness getElementSign(const ConstInfo& CI,
362 const std::vector<Constant*> &Indices) {
366 std::vector<Value*> Idx;
367 for (unsigned i = 0; i < Indices.size(); ++i)
368 Idx.push_back(Indices[i]);
369 Signedness result = getElementSign(VI, Idx);
374 /// This function determines if two function types differ only in their use of
375 /// the sret parameter attribute in the first argument. If they are identical
376 /// in all other respects, it returns true. Otherwise, it returns false.
377 static bool FuncTysDifferOnlyBySRet(const FunctionType *F1,
378 const FunctionType *F2) {
379 if (F1->getReturnType() != F2->getReturnType() ||
380 F1->getNumParams() != F2->getNumParams() ||
381 F1->getParamAttrs(0) != F2->getParamAttrs(0))
383 unsigned SRetMask = ~unsigned(FunctionType::StructRetAttribute);
384 for (unsigned i = 0; i < F1->getNumParams(); ++i) {
385 if (F1->getParamType(i) != F2->getParamType(i) ||
386 unsigned(F1->getParamAttrs(i+1)) & SRetMask !=
387 unsigned(F2->getParamAttrs(i+1)) & SRetMask)
393 /// This function determines if the type of V and Ty differ only by the SRet
394 /// parameter attribute. This is a more generalized case of
395 /// FuncTysDIfferOnlyBySRet since it doesn't require FunctionType arguments.
396 static bool TypesDifferOnlyBySRet(Value *V, const Type* Ty) {
397 if (V->getType() == Ty)
399 const PointerType *PF1 = dyn_cast<PointerType>(Ty);
400 const PointerType *PF2 = dyn_cast<PointerType>(V->getType());
402 const FunctionType* FT1 = dyn_cast<FunctionType>(PF1->getElementType());
403 const FunctionType* FT2 = dyn_cast<FunctionType>(PF2->getElementType());
405 return FuncTysDifferOnlyBySRet(FT1, FT2);
410 // The upgrade of csretcc to sret param attribute may have caused a function
411 // to not be found because the param attribute changed the type of the called
412 // function. This helper function, used in getExistingValue, detects that
413 // situation and bitcasts the function to the correct type.
414 static Value* handleSRetFuncTypeMerge(Value *V, const Type* Ty) {
415 // Handle degenerate cases
418 if (V->getType() == Ty)
421 const PointerType *PF1 = dyn_cast<PointerType>(Ty);
422 const PointerType *PF2 = dyn_cast<PointerType>(V->getType());
424 const FunctionType *FT1 = dyn_cast<FunctionType>(PF1->getElementType());
425 const FunctionType *FT2 = dyn_cast<FunctionType>(PF2->getElementType());
426 if (FT1 && FT2 && FuncTysDifferOnlyBySRet(FT1, FT2))
427 if (FT2->paramHasAttr(1, FunctionType::StructRetAttribute))
429 else if (Constant *C = dyn_cast<Constant>(V))
430 return ConstantExpr::getBitCast(C, PF1);
432 return new BitCastInst(V, PF1, "upgrd.cast", CurBB);
438 // getExistingValue - Look up the value specified by the provided type and
439 // the provided ValID. If the value exists and has already been defined, return
440 // it. Otherwise return null.
442 static Value *getExistingValue(const Type *Ty, const ValID &D) {
443 if (isa<FunctionType>(Ty)) {
444 error("Functions are not values and must be referenced as pointers");
448 case ValID::NumberVal: { // Is it a numbered definition?
449 unsigned Num = (unsigned)D.Num;
451 // Module constants occupy the lowest numbered slots...
452 std::map<const Type*,ValueList>::iterator VI = CurModule.Values.find(Ty);
453 if (VI != CurModule.Values.end()) {
454 if (Num < VI->second.size())
455 return VI->second[Num];
456 Num -= VI->second.size();
459 // Make sure that our type is within bounds
460 VI = CurFun.Values.find(Ty);
461 if (VI == CurFun.Values.end()) return 0;
463 // Check that the number is within bounds...
464 if (VI->second.size() <= Num) return 0;
466 return VI->second[Num];
469 case ValID::NameVal: { // Is it a named definition?
470 // Get the name out of the ID
471 RenameMapKey Key = makeRenameMapKey(D.Name, Ty, D.S);
473 if (inFunctionScope()) {
474 // See if the name was renamed
475 RenameMapType::const_iterator I = CurFun.RenameMap.find(Key);
476 std::string LookupName;
477 if (I != CurFun.RenameMap.end())
478 LookupName = I->second;
481 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
482 V = SymTab.lookup(LookupName);
483 if (V && V->getType() != Ty)
484 V = handleSRetFuncTypeMerge(V, Ty);
485 assert((!V || TypesDifferOnlyBySRet(V, Ty)) && "Found wrong type");
488 RenameMapType::const_iterator I = CurModule.RenameMap.find(Key);
489 std::string LookupName;
490 if (I != CurModule.RenameMap.end())
491 LookupName = I->second;
494 V = CurModule.CurrentModule->getValueSymbolTable().lookup(LookupName);
495 if (V && V->getType() != Ty)
496 V = handleSRetFuncTypeMerge(V, Ty);
497 assert((!V || TypesDifferOnlyBySRet(V, Ty)) && "Found wrong type");
502 D.destroy(); // Free old strdup'd memory...
506 // Check to make sure that "Ty" is an integral type, and that our
507 // value will fit into the specified type...
508 case ValID::ConstSIntVal: // Is it a constant pool reference??
509 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
510 error("Signed integral constant '" + itostr(D.ConstPool64) +
511 "' is invalid for type '" + Ty->getDescription() + "'");
513 return ConstantInt::get(Ty, D.ConstPool64);
515 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
516 if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
517 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64))
518 error("Integral constant '" + utostr(D.UConstPool64) +
519 "' is invalid or out of range");
520 else // This is really a signed reference. Transmogrify.
521 return ConstantInt::get(Ty, D.ConstPool64);
523 return ConstantInt::get(Ty, D.UConstPool64);
525 case ValID::ConstFPVal: // Is it a floating point const pool reference?
526 if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP))
527 error("FP constant invalid for type");
528 return ConstantFP::get(Ty, D.ConstPoolFP);
530 case ValID::ConstNullVal: // Is it a null value?
531 if (!isa<PointerType>(Ty))
532 error("Cannot create a a non pointer null");
533 return ConstantPointerNull::get(cast<PointerType>(Ty));
535 case ValID::ConstUndefVal: // Is it an undef value?
536 return UndefValue::get(Ty);
538 case ValID::ConstZeroVal: // Is it a zero value?
539 return Constant::getNullValue(Ty);
541 case ValID::ConstantVal: // Fully resolved constant?
542 if (D.ConstantValue->getType() != Ty)
543 error("Constant expression type different from required type");
544 return D.ConstantValue;
546 case ValID::InlineAsmVal: { // Inline asm expression
547 const PointerType *PTy = dyn_cast<PointerType>(Ty);
548 const FunctionType *FTy =
549 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
550 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints))
551 error("Invalid type for asm constraint string");
552 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
553 D.IAD->HasSideEffects);
554 D.destroy(); // Free InlineAsmDescriptor.
558 assert(0 && "Unhandled case");
562 assert(0 && "Unhandled case");
566 // getVal - This function is identical to getExistingValue, except that if a
567 // value is not already defined, it "improvises" by creating a placeholder var
568 // that looks and acts just like the requested variable. When the value is
569 // defined later, all uses of the placeholder variable are replaced with the
572 static Value *getVal(const Type *Ty, const ValID &ID) {
573 if (Ty == Type::LabelTy)
574 error("Cannot use a basic block here");
576 // See if the value has already been defined.
577 Value *V = getExistingValue(Ty, ID);
580 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty))
581 error("Invalid use of a composite type");
583 // If we reached here, we referenced either a symbol that we don't know about
584 // or an id number that hasn't been read yet. We may be referencing something
585 // forward, so just create an entry to be resolved later and get to it...
586 V = new Argument(Ty);
588 // Remember where this forward reference came from. FIXME, shouldn't we try
589 // to recycle these things??
590 CurModule.PlaceHolderInfo.insert(
591 std::make_pair(V, std::make_pair(ID, Upgradelineno)));
593 if (inFunctionScope())
594 InsertValue(V, CurFun.LateResolveValues);
596 InsertValue(V, CurModule.LateResolveValues);
600 /// @brief This just makes any name given to it unique, up to MAX_UINT times.
601 static std::string makeNameUnique(const std::string& Name) {
602 static unsigned UniqueNameCounter = 1;
603 std::string Result(Name);
604 Result += ".upgrd." + llvm::utostr(UniqueNameCounter++);
608 /// getBBVal - This is used for two purposes:
609 /// * If isDefinition is true, a new basic block with the specified ID is being
611 /// * If isDefinition is true, this is a reference to a basic block, which may
612 /// or may not be a forward reference.
614 static BasicBlock *getBBVal(const ValID &ID, bool isDefinition = false) {
615 assert(inFunctionScope() && "Can't get basic block at global scope");
621 error("Illegal label reference " + ID.getName());
623 case ValID::NumberVal: // Is it a numbered definition?
624 if (unsigned(ID.Num) >= CurFun.NumberedBlocks.size())
625 CurFun.NumberedBlocks.resize(ID.Num+1);
626 BB = CurFun.NumberedBlocks[ID.Num];
628 case ValID::NameVal: // Is it a named definition?
630 if (Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name)) {
631 if (N->getType() != Type::LabelTy) {
632 // Register names didn't use to conflict with basic block names
633 // because of type planes. Now they all have to be unique. So, we just
634 // rename the register and treat this name as if no basic block
636 RenameMapKey Key = makeRenameMapKey(ID.Name, N->getType(), ID.S);
637 N->setName(makeNameUnique(N->getName()));
638 CurModule.RenameMap[Key] = N->getName();
641 BB = cast<BasicBlock>(N);
647 // See if the block has already been defined.
649 // If this is the definition of the block, make sure the existing value was
650 // just a forward reference. If it was a forward reference, there will be
651 // an entry for it in the PlaceHolderInfo map.
652 if (isDefinition && !CurFun.BBForwardRefs.erase(BB))
653 // The existing value was a definition, not a forward reference.
654 error("Redefinition of label " + ID.getName());
656 ID.destroy(); // Free strdup'd memory.
660 // Otherwise this block has not been seen before.
661 BB = new BasicBlock("", CurFun.CurrentFunction);
662 if (ID.Type == ValID::NameVal) {
663 BB->setName(ID.Name);
665 CurFun.NumberedBlocks[ID.Num] = BB;
668 // If this is not a definition, keep track of it so we can use it as a forward
671 // Remember where this forward reference came from.
672 CurFun.BBForwardRefs[BB] = std::make_pair(ID, Upgradelineno);
674 // The forward declaration could have been inserted anywhere in the
675 // function: insert it into the correct place now.
676 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
677 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
684 //===----------------------------------------------------------------------===//
685 // Code to handle forward references in instructions
686 //===----------------------------------------------------------------------===//
688 // This code handles the late binding needed with statements that reference
689 // values not defined yet... for example, a forward branch, or the PHI node for
692 // This keeps a table (CurFun.LateResolveValues) of all such forward references
693 // and back patchs after we are done.
696 // ResolveDefinitions - If we could not resolve some defs at parsing
697 // time (forward branches, phi functions for loops, etc...) resolve the
701 ResolveDefinitions(std::map<const Type*,ValueList> &LateResolvers,
702 std::map<const Type*,ValueList> *FutureLateResolvers) {
704 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
705 for (std::map<const Type*,ValueList>::iterator LRI = LateResolvers.begin(),
706 E = LateResolvers.end(); LRI != E; ++LRI) {
707 const Type* Ty = LRI->first;
708 ValueList &List = LRI->second;
709 while (!List.empty()) {
710 Value *V = List.back();
713 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
714 CurModule.PlaceHolderInfo.find(V);
715 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error");
717 ValID &DID = PHI->second.first;
719 Value *TheRealValue = getExistingValue(Ty, DID);
721 V->replaceAllUsesWith(TheRealValue);
723 CurModule.PlaceHolderInfo.erase(PHI);
724 } else if (FutureLateResolvers) {
725 // Functions have their unresolved items forwarded to the module late
727 InsertValue(V, *FutureLateResolvers);
729 if (DID.Type == ValID::NameVal) {
730 error("Reference to an invalid definition: '" + DID.getName() +
731 "' of type '" + V->getType()->getDescription() + "'",
735 error("Reference to an invalid definition: #" +
736 itostr(DID.Num) + " of type '" +
737 V->getType()->getDescription() + "'", PHI->second.second);
744 LateResolvers.clear();
747 /// This function is used for type resolution and upref handling. When a type
748 /// becomes concrete, this function is called to adjust the signedness for the
750 static void ResolveTypeSign(const Type* oldTy, const Signedness &Sign) {
751 std::string TyName = CurModule.CurrentModule->getTypeName(oldTy);
753 CurModule.NamedTypeSigns[TyName] = Sign;
756 /// ResolveTypeTo - A brand new type was just declared. This means that (if
757 /// name is not null) things referencing Name can be resolved. Otherwise,
758 /// things refering to the number can be resolved. Do this now.
759 static void ResolveTypeTo(char *Name, const Type *ToTy, const Signedness& Sign){
762 D = ValID::create(Name);
764 D = ValID::create((int)CurModule.Types.size());
767 CurModule.NamedTypeSigns[Name] = Sign;
769 std::map<ValID, PATypeHolder>::iterator I =
770 CurModule.LateResolveTypes.find(D);
771 if (I != CurModule.LateResolveTypes.end()) {
772 const Type *OldTy = I->second.get();
773 ((DerivedType*)OldTy)->refineAbstractTypeTo(ToTy);
774 CurModule.LateResolveTypes.erase(I);
778 /// This is the implementation portion of TypeHasInteger. It traverses the
779 /// type given, avoiding recursive types, and returns true as soon as it finds
780 /// an integer type. If no integer type is found, it returns false.
781 static bool TypeHasIntegerI(const Type *Ty, std::vector<const Type*> Stack) {
782 // Handle some easy cases
783 if (Ty->isPrimitiveType() || (Ty->getTypeID() == Type::OpaqueTyID))
787 if (const SequentialType *STy = dyn_cast<SequentialType>(Ty))
788 return STy->getElementType()->isInteger();
790 // Avoid type structure recursion
791 for (std::vector<const Type*>::iterator I = Stack.begin(), E = Stack.end();
796 // Push us on the type stack
799 if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
800 if (TypeHasIntegerI(FTy->getReturnType(), Stack))
802 FunctionType::param_iterator I = FTy->param_begin();
803 FunctionType::param_iterator E = FTy->param_end();
805 if (TypeHasIntegerI(*I, Stack))
808 } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
809 StructType::element_iterator I = STy->element_begin();
810 StructType::element_iterator E = STy->element_end();
811 for (; I != E; ++I) {
812 if (TypeHasIntegerI(*I, Stack))
817 // There shouldn't be anything else, but its definitely not integer
818 assert(0 && "What type is this?");
822 /// This is the interface to TypeHasIntegerI. It just provides the type stack,
823 /// to avoid recursion, and then calls TypeHasIntegerI.
824 static inline bool TypeHasInteger(const Type *Ty) {
825 std::vector<const Type*> TyStack;
826 return TypeHasIntegerI(Ty, TyStack);
829 // setValueName - Set the specified value to the name given. The name may be
830 // null potentially, in which case this is a noop. The string passed in is
831 // assumed to be a malloc'd string buffer, and is free'd by this function.
833 static void setValueName(const ValueInfo &V, char *NameStr) {
835 std::string Name(NameStr); // Copy string
836 free(NameStr); // Free old string
838 if (V.V->getType() == Type::VoidTy) {
839 error("Can't assign name '" + Name + "' to value with void type");
843 assert(inFunctionScope() && "Must be in function scope");
845 // Search the function's symbol table for an existing value of this name
846 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
847 Value* Existing = ST.lookup(Name);
849 // An existing value of the same name was found. This might have happened
850 // because of the integer type planes collapsing in LLVM 2.0.
851 if (Existing->getType() == V.V->getType() &&
852 !TypeHasInteger(Existing->getType())) {
853 // If the type does not contain any integers in them then this can't be
854 // a type plane collapsing issue. It truly is a redefinition and we
855 // should error out as the assembly is invalid.
856 error("Redefinition of value named '" + Name + "' of type '" +
857 V.V->getType()->getDescription() + "'");
860 // In LLVM 2.0 we don't allow names to be re-used for any values in a
861 // function, regardless of Type. Previously re-use of names was okay as
862 // long as they were distinct types. With type planes collapsing because
863 // of the signedness change and because of PR411, this can no longer be
864 // supported. We must search the entire symbol table for a conflicting
865 // name and make the name unique. No warning is needed as this can't
867 std::string NewName = makeNameUnique(Name);
868 // We're changing the name but it will probably be used by other
869 // instructions as operands later on. Consequently we have to retain
870 // a mapping of the renaming that we're doing.
871 RenameMapKey Key = makeRenameMapKey(Name, V.V->getType(), V.S);
872 CurFun.RenameMap[Key] = NewName;
881 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
882 /// this is a declaration, otherwise it is a definition.
883 static GlobalVariable *
884 ParseGlobalVariable(char *NameStr,GlobalValue::LinkageTypes Linkage,
885 bool isConstantGlobal, const Type *Ty,
886 Constant *Initializer,
887 const Signedness &Sign) {
888 if (isa<FunctionType>(Ty))
889 error("Cannot declare global vars of function type");
891 const PointerType *PTy = PointerType::get(Ty);
895 Name = NameStr; // Copy string
896 free(NameStr); // Free old string
899 // See if this global value was forward referenced. If so, recycle the
903 ID = ValID::create((char*)Name.c_str());
905 ID = ValID::create((int)CurModule.Values[PTy].size());
907 ID.S.makeComposite(Sign);
909 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
910 // Move the global to the end of the list, from whereever it was
911 // previously inserted.
912 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
913 CurModule.CurrentModule->getGlobalList().remove(GV);
914 CurModule.CurrentModule->getGlobalList().push_back(GV);
915 GV->setInitializer(Initializer);
916 GV->setLinkage(Linkage);
917 GV->setConstant(isConstantGlobal);
918 InsertValue(GV, CurModule.Values);
922 // If this global has a name, check to see if there is already a definition
923 // of this global in the module and emit warnings if there are conflicts.
925 // The global has a name. See if there's an existing one of the same name.
926 if (CurModule.CurrentModule->getNamedGlobal(Name)) {
927 // We found an existing global ov the same name. This isn't allowed
928 // in LLVM 2.0. Consequently, we must alter the name of the global so it
929 // can at least compile. This can happen because of type planes
930 // There is alread a global of the same name which means there is a
931 // conflict. Let's see what we can do about it.
932 std::string NewName(makeNameUnique(Name));
933 if (Linkage != GlobalValue::InternalLinkage) {
934 // The linkage of this gval is external so we can't reliably rename
935 // it because it could potentially create a linking problem.
936 // However, we can't leave the name conflict in the output either or
937 // it won't assemble with LLVM 2.0. So, all we can do is rename
938 // this one to something unique and emit a warning about the problem.
939 warning("Renaming global variable '" + Name + "' to '" + NewName +
940 "' may cause linkage errors");
943 // Put the renaming in the global rename map
944 RenameMapKey Key = makeRenameMapKey(Name, PointerType::get(Ty), ID.S);
945 CurModule.RenameMap[Key] = NewName;
952 // Otherwise there is no existing GV to use, create one now.
954 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
955 CurModule.CurrentModule);
956 InsertValue(GV, CurModule.Values);
957 // Remember the sign of this global.
958 CurModule.NamedValueSigns[Name] = ID.S;
962 // setTypeName - Set the specified type to the name given. The name may be
963 // null potentially, in which case this is a noop. The string passed in is
964 // assumed to be a malloc'd string buffer, and is freed by this function.
966 // This function returns true if the type has already been defined, but is
967 // allowed to be redefined in the specified context. If the name is a new name
968 // for the type plane, it is inserted and false is returned.
969 static bool setTypeName(const PATypeInfo& TI, char *NameStr) {
970 assert(!inFunctionScope() && "Can't give types function-local names");
971 if (NameStr == 0) return false;
973 std::string Name(NameStr); // Copy string
974 free(NameStr); // Free old string
976 const Type* Ty = TI.PAT->get();
978 // We don't allow assigning names to void type
979 if (Ty == Type::VoidTy) {
980 error("Can't assign name '" + Name + "' to the void type");
984 // Set the type name, checking for conflicts as we do so.
985 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, Ty);
987 // Save the sign information for later use
988 CurModule.NamedTypeSigns[Name] = TI.S;
990 if (AlreadyExists) { // Inserting a name that is already defined???
991 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
992 assert(Existing && "Conflict but no matching type?");
994 // There is only one case where this is allowed: when we are refining an
995 // opaque type. In this case, Existing will be an opaque type.
996 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
997 // We ARE replacing an opaque type!
998 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(Ty);
1002 // Otherwise, this is an attempt to redefine a type. That's okay if
1003 // the redefinition is identical to the original. This will be so if
1004 // Existing and T point to the same Type object. In this one case we
1005 // allow the equivalent redefinition.
1006 if (Existing == Ty) return true; // Yes, it's equal.
1008 // Any other kind of (non-equivalent) redefinition is an error.
1009 error("Redefinition of type named '" + Name + "' in the '" +
1010 Ty->getDescription() + "' type plane");
1016 //===----------------------------------------------------------------------===//
1017 // Code for handling upreferences in type names...
1020 // TypeContains - Returns true if Ty directly contains E in it.
1022 static bool TypeContains(const Type *Ty, const Type *E) {
1023 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
1024 E) != Ty->subtype_end();
1028 struct UpRefRecord {
1029 // NestingLevel - The number of nesting levels that need to be popped before
1030 // this type is resolved.
1031 unsigned NestingLevel;
1033 // LastContainedTy - This is the type at the current binding level for the
1034 // type. Every time we reduce the nesting level, this gets updated.
1035 const Type *LastContainedTy;
1037 // UpRefTy - This is the actual opaque type that the upreference is
1038 // represented with.
1039 OpaqueType *UpRefTy;
1041 UpRefRecord(unsigned NL, OpaqueType *URTy)
1042 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) { }
1046 // UpRefs - A list of the outstanding upreferences that need to be resolved.
1047 static std::vector<UpRefRecord> UpRefs;
1049 /// HandleUpRefs - Every time we finish a new layer of types, this function is
1050 /// called. It loops through the UpRefs vector, which is a list of the
1051 /// currently active types. For each type, if the up reference is contained in
1052 /// the newly completed type, we decrement the level count. When the level
1053 /// count reaches zero, the upreferenced type is the type that is passed in:
1054 /// thus we can complete the cycle.
1056 static PATypeHolder HandleUpRefs(const Type *ty, const Signedness& Sign) {
1057 // If Ty isn't abstract, or if there are no up-references in it, then there is
1058 // nothing to resolve here.
1059 if (!ty->isAbstract() || UpRefs.empty()) return ty;
1061 PATypeHolder Ty(ty);
1062 UR_OUT("Type '" << Ty->getDescription() <<
1063 "' newly formed. Resolving upreferences.\n" <<
1064 UpRefs.size() << " upreferences active!\n");
1066 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
1067 // to zero), we resolve them all together before we resolve them to Ty. At
1068 // the end of the loop, if there is anything to resolve to Ty, it will be in
1070 OpaqueType *TypeToResolve = 0;
1073 for (; i != UpRefs.size(); ++i) {
1074 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
1075 << UpRefs[i].UpRefTy->getDescription() << ") = "
1076 << (TypeContains(Ty, UpRefs[i].UpRefTy) ? "true" : "false") << "\n");
1077 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
1078 // Decrement level of upreference
1079 unsigned Level = --UpRefs[i].NestingLevel;
1080 UpRefs[i].LastContainedTy = Ty;
1081 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
1082 if (Level == 0) { // Upreference should be resolved!
1083 if (!TypeToResolve) {
1084 TypeToResolve = UpRefs[i].UpRefTy;
1086 UR_OUT(" * Resolving upreference for "
1087 << UpRefs[i].UpRefTy->getDescription() << "\n";
1088 std::string OldName = UpRefs[i].UpRefTy->getDescription());
1089 ResolveTypeSign(UpRefs[i].UpRefTy, Sign);
1090 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
1091 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
1092 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
1094 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
1095 --i; // Do not skip the next element...
1100 if (TypeToResolve) {
1101 UR_OUT(" * Resolving upreference for "
1102 << UpRefs[i].UpRefTy->getDescription() << "\n";
1103 std::string OldName = TypeToResolve->getDescription());
1104 ResolveTypeSign(TypeToResolve, Sign);
1105 TypeToResolve->refineAbstractTypeTo(Ty);
1111 bool Signedness::operator<(const Signedness &that) const {
1114 return *(this->name) < *(that.name);
1116 return CurModule.NamedTypeSigns[*name] < that;
1117 } else if (that.isNamed()) {
1118 return *this < CurModule.NamedTypeSigns[*that.name];
1121 if (isComposite() && that.isComposite()) {
1122 if (sv->size() == that.sv->size()) {
1123 SignVector::const_iterator thisI = sv->begin(), thisE = sv->end();
1124 SignVector::const_iterator thatI = that.sv->begin(),
1125 thatE = that.sv->end();
1126 for (; thisI != thisE; ++thisI, ++thatI) {
1127 if (*thisI < *thatI)
1129 else if (!(*thisI == *thatI))
1134 return sv->size() < that.sv->size();
1136 return kind < that.kind;
1139 bool Signedness::operator==(const Signedness &that) const {
1142 return *(this->name) == *(that.name);
1144 return CurModule.NamedTypeSigns[*(this->name)] == that;
1145 else if (that.isNamed())
1146 return *this == CurModule.NamedTypeSigns[*(that.name)];
1147 if (isComposite() && that.isComposite()) {
1148 if (sv->size() == that.sv->size()) {
1149 SignVector::const_iterator thisI = sv->begin(), thisE = sv->end();
1150 SignVector::const_iterator thatI = that.sv->begin(),
1151 thatE = that.sv->end();
1152 for (; thisI != thisE; ++thisI, ++thatI) {
1153 if (!(*thisI == *thatI))
1160 return kind == that.kind;
1163 void Signedness::copy(const Signedness &that) {
1164 if (that.isNamed()) {
1166 name = new std::string(*that.name);
1167 } else if (that.isComposite()) {
1169 sv = new SignVector();
1177 void Signedness::destroy() {
1180 } else if (isComposite()) {
1185 void Signedness::dump() const {
1186 if (isComposite()) {
1187 if (sv->size() == 1) {
1192 for (unsigned i = 0; i < sv->size(); ++i) {
1199 } else if (isNamed()) {
1201 } else if (isSigned()) {
1203 } else if (isUnsigned()) {
1209 static inline Instruction::TermOps
1210 getTermOp(TermOps op) {
1212 default : assert(0 && "Invalid OldTermOp");
1213 case RetOp : return Instruction::Ret;
1214 case BrOp : return Instruction::Br;
1215 case SwitchOp : return Instruction::Switch;
1216 case InvokeOp : return Instruction::Invoke;
1217 case UnwindOp : return Instruction::Unwind;
1218 case UnreachableOp: return Instruction::Unreachable;
1222 static inline Instruction::BinaryOps
1223 getBinaryOp(BinaryOps op, const Type *Ty, const Signedness& Sign) {
1225 default : assert(0 && "Invalid OldBinaryOps");
1231 case SetGT : assert(0 && "Should use getCompareOp");
1232 case AddOp : return Instruction::Add;
1233 case SubOp : return Instruction::Sub;
1234 case MulOp : return Instruction::Mul;
1236 // This is an obsolete instruction so we must upgrade it based on the
1237 // types of its operands.
1238 bool isFP = Ty->isFloatingPoint();
1239 if (const VectorType* PTy = dyn_cast<VectorType>(Ty))
1240 // If its a vector type we want to use the element type
1241 isFP = PTy->getElementType()->isFloatingPoint();
1243 return Instruction::FDiv;
1244 else if (Sign.isSigned())
1245 return Instruction::SDiv;
1246 return Instruction::UDiv;
1248 case UDivOp : return Instruction::UDiv;
1249 case SDivOp : return Instruction::SDiv;
1250 case FDivOp : return Instruction::FDiv;
1252 // This is an obsolete instruction so we must upgrade it based on the
1253 // types of its operands.
1254 bool isFP = Ty->isFloatingPoint();
1255 if (const VectorType* PTy = dyn_cast<VectorType>(Ty))
1256 // If its a vector type we want to use the element type
1257 isFP = PTy->getElementType()->isFloatingPoint();
1258 // Select correct opcode
1260 return Instruction::FRem;
1261 else if (Sign.isSigned())
1262 return Instruction::SRem;
1263 return Instruction::URem;
1265 case URemOp : return Instruction::URem;
1266 case SRemOp : return Instruction::SRem;
1267 case FRemOp : return Instruction::FRem;
1268 case LShrOp : return Instruction::LShr;
1269 case AShrOp : return Instruction::AShr;
1270 case ShlOp : return Instruction::Shl;
1272 if (Sign.isSigned())
1273 return Instruction::AShr;
1274 return Instruction::LShr;
1275 case AndOp : return Instruction::And;
1276 case OrOp : return Instruction::Or;
1277 case XorOp : return Instruction::Xor;
1281 static inline Instruction::OtherOps
1282 getCompareOp(BinaryOps op, unsigned short &predicate, const Type* &Ty,
1283 const Signedness &Sign) {
1284 bool isSigned = Sign.isSigned();
1285 bool isFP = Ty->isFloatingPoint();
1287 default : assert(0 && "Invalid OldSetCC");
1290 predicate = FCmpInst::FCMP_OEQ;
1291 return Instruction::FCmp;
1293 predicate = ICmpInst::ICMP_EQ;
1294 return Instruction::ICmp;
1298 predicate = FCmpInst::FCMP_UNE;
1299 return Instruction::FCmp;
1301 predicate = ICmpInst::ICMP_NE;
1302 return Instruction::ICmp;
1306 predicate = FCmpInst::FCMP_OLE;
1307 return Instruction::FCmp;
1310 predicate = ICmpInst::ICMP_SLE;
1312 predicate = ICmpInst::ICMP_ULE;
1313 return Instruction::ICmp;
1317 predicate = FCmpInst::FCMP_OGE;
1318 return Instruction::FCmp;
1321 predicate = ICmpInst::ICMP_SGE;
1323 predicate = ICmpInst::ICMP_UGE;
1324 return Instruction::ICmp;
1328 predicate = FCmpInst::FCMP_OLT;
1329 return Instruction::FCmp;
1332 predicate = ICmpInst::ICMP_SLT;
1334 predicate = ICmpInst::ICMP_ULT;
1335 return Instruction::ICmp;
1339 predicate = FCmpInst::FCMP_OGT;
1340 return Instruction::FCmp;
1343 predicate = ICmpInst::ICMP_SGT;
1345 predicate = ICmpInst::ICMP_UGT;
1346 return Instruction::ICmp;
1351 static inline Instruction::MemoryOps getMemoryOp(MemoryOps op) {
1353 default : assert(0 && "Invalid OldMemoryOps");
1354 case MallocOp : return Instruction::Malloc;
1355 case FreeOp : return Instruction::Free;
1356 case AllocaOp : return Instruction::Alloca;
1357 case LoadOp : return Instruction::Load;
1358 case StoreOp : return Instruction::Store;
1359 case GetElementPtrOp : return Instruction::GetElementPtr;
1363 static inline Instruction::OtherOps
1364 getOtherOp(OtherOps op, const Signedness &Sign) {
1366 default : assert(0 && "Invalid OldOtherOps");
1367 case PHIOp : return Instruction::PHI;
1368 case CallOp : return Instruction::Call;
1369 case SelectOp : return Instruction::Select;
1370 case UserOp1 : return Instruction::UserOp1;
1371 case UserOp2 : return Instruction::UserOp2;
1372 case VAArg : return Instruction::VAArg;
1373 case ExtractElementOp : return Instruction::ExtractElement;
1374 case InsertElementOp : return Instruction::InsertElement;
1375 case ShuffleVectorOp : return Instruction::ShuffleVector;
1376 case ICmpOp : return Instruction::ICmp;
1377 case FCmpOp : return Instruction::FCmp;
1381 static inline Value*
1382 getCast(CastOps op, Value *Src, const Signedness &SrcSign, const Type *DstTy,
1383 const Signedness &DstSign, bool ForceInstruction = false) {
1384 Instruction::CastOps Opcode;
1385 const Type* SrcTy = Src->getType();
1387 if (SrcTy->isFloatingPoint() && isa<PointerType>(DstTy)) {
1388 // fp -> ptr cast is no longer supported but we must upgrade this
1389 // by doing a double cast: fp -> int -> ptr
1390 SrcTy = Type::Int64Ty;
1391 Opcode = Instruction::IntToPtr;
1392 if (isa<Constant>(Src)) {
1393 Src = ConstantExpr::getCast(Instruction::FPToUI,
1394 cast<Constant>(Src), SrcTy);
1396 std::string NewName(makeNameUnique(Src->getName()));
1397 Src = new FPToUIInst(Src, SrcTy, NewName, CurBB);
1399 } else if (isa<IntegerType>(DstTy) &&
1400 cast<IntegerType>(DstTy)->getBitWidth() == 1) {
1401 // cast type %x to bool was previously defined as setne type %x, null
1402 // The cast semantic is now to truncate, not compare so we must retain
1403 // the original intent by replacing the cast with a setne
1404 Constant* Null = Constant::getNullValue(SrcTy);
1405 Instruction::OtherOps Opcode = Instruction::ICmp;
1406 unsigned short predicate = ICmpInst::ICMP_NE;
1407 if (SrcTy->isFloatingPoint()) {
1408 Opcode = Instruction::FCmp;
1409 predicate = FCmpInst::FCMP_ONE;
1410 } else if (!SrcTy->isInteger() && !isa<PointerType>(SrcTy)) {
1411 error("Invalid cast to bool");
1413 if (isa<Constant>(Src) && !ForceInstruction)
1414 return ConstantExpr::getCompare(predicate, cast<Constant>(Src), Null);
1416 return CmpInst::create(Opcode, predicate, Src, Null);
1418 // Determine the opcode to use by calling CastInst::getCastOpcode
1420 CastInst::getCastOpcode(Src, SrcSign.isSigned(), DstTy,
1421 DstSign.isSigned());
1423 } else switch (op) {
1424 default: assert(0 && "Invalid cast token");
1425 case TruncOp: Opcode = Instruction::Trunc; break;
1426 case ZExtOp: Opcode = Instruction::ZExt; break;
1427 case SExtOp: Opcode = Instruction::SExt; break;
1428 case FPTruncOp: Opcode = Instruction::FPTrunc; break;
1429 case FPExtOp: Opcode = Instruction::FPExt; break;
1430 case FPToUIOp: Opcode = Instruction::FPToUI; break;
1431 case FPToSIOp: Opcode = Instruction::FPToSI; break;
1432 case UIToFPOp: Opcode = Instruction::UIToFP; break;
1433 case SIToFPOp: Opcode = Instruction::SIToFP; break;
1434 case PtrToIntOp: Opcode = Instruction::PtrToInt; break;
1435 case IntToPtrOp: Opcode = Instruction::IntToPtr; break;
1436 case BitCastOp: Opcode = Instruction::BitCast; break;
1439 if (isa<Constant>(Src) && !ForceInstruction)
1440 return ConstantExpr::getCast(Opcode, cast<Constant>(Src), DstTy);
1441 return CastInst::create(Opcode, Src, DstTy);
1444 static Instruction *
1445 upgradeIntrinsicCall(const Type* RetTy, const ValID &ID,
1446 std::vector<Value*>& Args) {
1448 std::string Name = ID.Type == ValID::NameVal ? ID.Name : "";
1449 if (Name == "llvm.isunordered.f32" || Name == "llvm.isunordered.f64") {
1450 if (Args.size() != 2)
1451 error("Invalid prototype for " + Name + " prototype");
1452 return new FCmpInst(FCmpInst::FCMP_UNO, Args[0], Args[1]);
1454 const Type* PtrTy = PointerType::get(Type::Int8Ty);
1455 std::vector<const Type*> Params;
1456 if (Name == "llvm.va_start" || Name == "llvm.va_end") {
1457 if (Args.size() != 1)
1458 error("Invalid prototype for " + Name + " prototype");
1459 Params.push_back(PtrTy);
1460 const FunctionType *FTy = FunctionType::get(Type::VoidTy, Params, false);
1461 const PointerType *PFTy = PointerType::get(FTy);
1462 Value* Func = getVal(PFTy, ID);
1463 Args[0] = new BitCastInst(Args[0], PtrTy, makeNameUnique("va"), CurBB);
1464 return new CallInst(Func, &Args[0], Args.size());
1465 } else if (Name == "llvm.va_copy") {
1466 if (Args.size() != 2)
1467 error("Invalid prototype for " + Name + " prototype");
1468 Params.push_back(PtrTy);
1469 Params.push_back(PtrTy);
1470 const FunctionType *FTy = FunctionType::get(Type::VoidTy, Params, false);
1471 const PointerType *PFTy = PointerType::get(FTy);
1472 Value* Func = getVal(PFTy, ID);
1473 std::string InstName0(makeNameUnique("va0"));
1474 std::string InstName1(makeNameUnique("va1"));
1475 Args[0] = new BitCastInst(Args[0], PtrTy, InstName0, CurBB);
1476 Args[1] = new BitCastInst(Args[1], PtrTy, InstName1, CurBB);
1477 return new CallInst(Func, &Args[0], Args.size());
1483 const Type* upgradeGEPIndices(const Type* PTy,
1484 std::vector<ValueInfo> *Indices,
1485 std::vector<Value*> &VIndices,
1486 std::vector<Constant*> *CIndices = 0) {
1487 // Traverse the indices with a gep_type_iterator so we can build the list
1488 // of constant and value indices for use later. Also perform upgrades
1490 if (CIndices) CIndices->clear();
1491 for (unsigned i = 0, e = Indices->size(); i != e; ++i)
1492 VIndices.push_back((*Indices)[i].V);
1493 generic_gep_type_iterator<std::vector<Value*>::iterator>
1494 GTI = gep_type_begin(PTy, VIndices.begin(), VIndices.end()),
1495 GTE = gep_type_end(PTy, VIndices.begin(), VIndices.end());
1496 for (unsigned i = 0, e = Indices->size(); i != e && GTI != GTE; ++i, ++GTI) {
1497 Value *Index = VIndices[i];
1498 if (CIndices && !isa<Constant>(Index))
1499 error("Indices to constant getelementptr must be constants");
1500 // LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte
1501 // struct indices to i32 struct indices with ZExt for compatibility.
1502 else if (isa<StructType>(*GTI)) { // Only change struct indices
1503 if (ConstantInt *CUI = dyn_cast<ConstantInt>(Index))
1504 if (CUI->getType()->getBitWidth() == 8)
1506 ConstantExpr::getCast(Instruction::ZExt, CUI, Type::Int32Ty);
1508 // Make sure that unsigned SequentialType indices are zext'd to
1509 // 64-bits if they were smaller than that because LLVM 2.0 will sext
1510 // all indices for SequentialType elements. We must retain the same
1511 // semantic (zext) for unsigned types.
1512 if (const IntegerType *Ity = dyn_cast<IntegerType>(Index->getType()))
1513 if (Ity->getBitWidth() < 64 && (*Indices)[i].S.isUnsigned()) {
1515 Index = ConstantExpr::getCast(Instruction::ZExt,
1516 cast<Constant>(Index), Type::Int64Ty);
1518 Index = CastInst::create(Instruction::ZExt, Index, Type::Int64Ty,
1519 makeNameUnique("gep"), CurBB);
1520 VIndices[i] = Index;
1523 // Add to the CIndices list, if requested.
1525 CIndices->push_back(cast<Constant>(Index));
1529 GetElementPtrInst::getIndexedType(PTy, &VIndices[0], VIndices.size(), true);
1531 error("Index list invalid for constant getelementptr");
1535 unsigned upgradeCallingConv(unsigned CC) {
1537 case OldCallingConv::C : return CallingConv::C;
1538 case OldCallingConv::CSRet : return CallingConv::C;
1539 case OldCallingConv::Fast : return CallingConv::Fast;
1540 case OldCallingConv::Cold : return CallingConv::Cold;
1541 case OldCallingConv::X86_StdCall : return CallingConv::X86_StdCall;
1542 case OldCallingConv::X86_FastCall: return CallingConv::X86_FastCall;
1548 Module* UpgradeAssembly(const std::string &infile, std::istream& in,
1549 bool debug, bool addAttrs)
1552 CurFilename = infile;
1555 AddAttributes = addAttrs;
1556 ObsoleteVarArgs = false;
1559 CurModule.CurrentModule = new Module(CurFilename);
1561 // Check to make sure the parser succeeded
1564 delete ParserResult;
1565 std::cerr << "llvm-upgrade: parse failed.\n";
1569 // Check to make sure that parsing produced a result
1570 if (!ParserResult) {
1571 std::cerr << "llvm-upgrade: no parse result.\n";
1575 // Reset ParserResult variable while saving its value for the result.
1576 Module *Result = ParserResult;
1579 //Not all functions use vaarg, so make a second check for ObsoleteVarArgs
1582 if ((F = Result->getFunction("llvm.va_start"))
1583 && F->getFunctionType()->getNumParams() == 0)
1584 ObsoleteVarArgs = true;
1585 if((F = Result->getFunction("llvm.va_copy"))
1586 && F->getFunctionType()->getNumParams() == 1)
1587 ObsoleteVarArgs = true;
1590 if (ObsoleteVarArgs && NewVarArgs) {
1591 error("This file is corrupt: it uses both new and old style varargs");
1595 if(ObsoleteVarArgs) {
1596 if(Function* F = Result->getFunction("llvm.va_start")) {
1597 if (F->arg_size() != 0) {
1598 error("Obsolete va_start takes 0 argument");
1604 //bar = alloca typeof(foo)
1608 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1609 const Type* ArgTy = F->getFunctionType()->getReturnType();
1610 const Type* ArgTyPtr = PointerType::get(ArgTy);
1611 Function* NF = cast<Function>(Result->getOrInsertFunction(
1612 "llvm.va_start", RetTy, ArgTyPtr, (Type *)0));
1614 while (!F->use_empty()) {
1615 CallInst* CI = cast<CallInst>(F->use_back());
1616 AllocaInst* bar = new AllocaInst(ArgTy, 0, "vastart.fix.1", CI);
1617 new CallInst(NF, bar, "", CI);
1618 Value* foo = new LoadInst(bar, "vastart.fix.2", CI);
1619 CI->replaceAllUsesWith(foo);
1620 CI->getParent()->getInstList().erase(CI);
1622 Result->getFunctionList().erase(F);
1625 if(Function* F = Result->getFunction("llvm.va_end")) {
1626 if(F->arg_size() != 1) {
1627 error("Obsolete va_end takes 1 argument");
1633 //bar = alloca 1 of typeof(foo)
1635 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1636 const Type* ArgTy = F->getFunctionType()->getParamType(0);
1637 const Type* ArgTyPtr = PointerType::get(ArgTy);
1638 Function* NF = cast<Function>(Result->getOrInsertFunction(
1639 "llvm.va_end", RetTy, ArgTyPtr, (Type *)0));
1641 while (!F->use_empty()) {
1642 CallInst* CI = cast<CallInst>(F->use_back());
1643 AllocaInst* bar = new AllocaInst(ArgTy, 0, "vaend.fix.1", CI);
1644 new StoreInst(CI->getOperand(1), bar, CI);
1645 new CallInst(NF, bar, "", CI);
1646 CI->getParent()->getInstList().erase(CI);
1648 Result->getFunctionList().erase(F);
1651 if(Function* F = Result->getFunction("llvm.va_copy")) {
1652 if(F->arg_size() != 1) {
1653 error("Obsolete va_copy takes 1 argument");
1658 //a = alloca 1 of typeof(foo)
1659 //b = alloca 1 of typeof(foo)
1664 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1665 const Type* ArgTy = F->getFunctionType()->getReturnType();
1666 const Type* ArgTyPtr = PointerType::get(ArgTy);
1667 Function* NF = cast<Function>(Result->getOrInsertFunction(
1668 "llvm.va_copy", RetTy, ArgTyPtr, ArgTyPtr, (Type *)0));
1670 while (!F->use_empty()) {
1671 CallInst* CI = cast<CallInst>(F->use_back());
1672 AllocaInst* a = new AllocaInst(ArgTy, 0, "vacopy.fix.1", CI);
1673 AllocaInst* b = new AllocaInst(ArgTy, 0, "vacopy.fix.2", CI);
1674 new StoreInst(CI->getOperand(1), b, CI);
1675 new CallInst(NF, a, b, "", CI);
1676 Value* foo = new LoadInst(a, "vacopy.fix.3", CI);
1677 CI->replaceAllUsesWith(foo);
1678 CI->getParent()->getInstList().erase(CI);
1680 Result->getFunctionList().erase(F);
1687 } // end llvm namespace
1689 using namespace llvm;
1694 llvm::Module *ModuleVal;
1695 llvm::Function *FunctionVal;
1696 std::pair<llvm::PATypeInfo, char*> *ArgVal;
1697 llvm::BasicBlock *BasicBlockVal;
1698 llvm::TermInstInfo TermInstVal;
1699 llvm::InstrInfo InstVal;
1700 llvm::ConstInfo ConstVal;
1701 llvm::ValueInfo ValueVal;
1702 llvm::PATypeInfo TypeVal;
1703 llvm::TypeInfo PrimType;
1704 llvm::PHIListInfo PHIList;
1705 std::list<llvm::PATypeInfo> *TypeList;
1706 std::vector<llvm::ValueInfo> *ValueList;
1707 std::vector<llvm::ConstInfo> *ConstVector;
1710 std::vector<std::pair<llvm::PATypeInfo,char*> > *ArgList;
1711 // Represent the RHS of PHI node
1712 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
1714 llvm::GlobalValue::LinkageTypes Linkage;
1722 char *StrVal; // This memory is strdup'd!
1723 llvm::ValID ValIDVal; // strdup'd memory maybe!
1725 llvm::BinaryOps BinaryOpVal;
1726 llvm::TermOps TermOpVal;
1727 llvm::MemoryOps MemOpVal;
1728 llvm::OtherOps OtherOpVal;
1729 llvm::CastOps CastOpVal;
1730 llvm::ICmpInst::Predicate IPred;
1731 llvm::FCmpInst::Predicate FPred;
1732 llvm::Module::Endianness Endianness;
1735 %type <ModuleVal> Module FunctionList
1736 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1737 %type <BasicBlockVal> BasicBlock InstructionList
1738 %type <TermInstVal> BBTerminatorInst
1739 %type <InstVal> Inst InstVal MemoryInst
1740 %type <ConstVal> ConstVal ConstExpr
1741 %type <ConstVector> ConstVector
1742 %type <ArgList> ArgList ArgListH
1743 %type <ArgVal> ArgVal
1744 %type <PHIList> PHIList
1745 %type <ValueList> ValueRefList ValueRefListE // For call param lists
1746 %type <ValueList> IndexList // For GEP derived indices
1747 %type <TypeList> TypeListI ArgTypeListI
1748 %type <JumpTable> JumpTable
1749 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1750 %type <BoolVal> OptVolatile // 'volatile' or not
1751 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1752 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1753 %type <Linkage> OptLinkage FnDeclareLinkage
1754 %type <Endianness> BigOrLittle
1756 // ValueRef - Unresolved reference to a definition or BB
1757 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1758 %type <ValueVal> ResolvedVal // <type> <valref> pair
1760 // Tokens and types for handling constant integer values
1762 // ESINT64VAL - A negative number within long long range
1763 %token <SInt64Val> ESINT64VAL
1765 // EUINT64VAL - A positive number within uns. long long range
1766 %token <UInt64Val> EUINT64VAL
1767 %type <SInt64Val> EINT64VAL
1769 %token <SIntVal> SINTVAL // Signed 32 bit ints...
1770 %token <UIntVal> UINTVAL // Unsigned 32 bit ints...
1771 %type <SIntVal> INTVAL
1772 %token <FPVal> FPVAL // Float or Double constant
1774 // Built in types...
1775 %type <TypeVal> Types TypesV UpRTypes UpRTypesV
1776 %type <PrimType> SIntType UIntType IntType FPType PrimType // Classifications
1777 %token <PrimType> VOID BOOL SBYTE UBYTE SHORT USHORT INT UINT LONG ULONG
1778 %token <PrimType> FLOAT DOUBLE TYPE LABEL
1780 %token <StrVal> VAR_ID LABELSTR STRINGCONSTANT
1781 %type <StrVal> Name OptName OptAssign
1782 %type <UIntVal> OptAlign OptCAlign
1783 %type <StrVal> OptSection SectionString
1785 %token IMPLEMENTATION ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1786 %token DECLARE GLOBAL CONSTANT SECTION VOLATILE
1787 %token TO DOTDOTDOT NULL_TOK UNDEF CONST INTERNAL LINKONCE WEAK APPENDING
1788 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1789 %token OPAQUE NOT EXTERNAL TARGET TRIPLE ENDIAN POINTERSIZE LITTLE BIG ALIGN
1790 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1791 %token CC_TOK CCC_TOK CSRETCC_TOK FASTCC_TOK COLDCC_TOK
1792 %token X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1794 %type <UIntVal> OptCallingConv
1796 // Basic Block Terminating Operators
1797 %token <TermOpVal> RET BR SWITCH INVOKE UNREACHABLE
1798 %token UNWIND EXCEPT
1801 %type <BinaryOpVal> ArithmeticOps LogicalOps SetCondOps // Binops Subcatagories
1802 %type <BinaryOpVal> ShiftOps
1803 %token <BinaryOpVal> ADD SUB MUL DIV UDIV SDIV FDIV REM UREM SREM FREM
1804 %token <BinaryOpVal> AND OR XOR SHL SHR ASHR LSHR
1805 %token <BinaryOpVal> SETLE SETGE SETLT SETGT SETEQ SETNE // Binary Comparators
1806 %token <OtherOpVal> ICMP FCMP
1808 // Memory Instructions
1809 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1812 %token <OtherOpVal> PHI_TOK SELECT VAARG
1813 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1814 %token VAARG_old VANEXT_old //OBSOLETE
1816 // Support for ICmp/FCmp Predicates, which is 1.9++ but not 2.0
1817 %type <IPred> IPredicates
1818 %type <FPred> FPredicates
1819 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1820 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1822 %token <CastOpVal> CAST TRUNC ZEXT SEXT FPTRUNC FPEXT FPTOUI FPTOSI
1823 %token <CastOpVal> UITOFP SITOFP PTRTOINT INTTOPTR BITCAST
1824 %type <CastOpVal> CastOps
1830 // Handle constant integer size restriction and conversion...
1835 if ($1 > (uint32_t)INT32_MAX) // Outside of my range!
1836 error("Value too large for type");
1842 : ESINT64VAL // These have same type and can't cause problems...
1844 if ($1 > (uint64_t)INT64_MAX) // Outside of my range!
1845 error("Value too large for type");
1849 // Operations that are notably excluded from this list include:
1850 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1853 : ADD | SUB | MUL | DIV | UDIV | SDIV | FDIV | REM | UREM | SREM | FREM
1861 : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE
1865 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1866 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1867 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1868 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1869 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1873 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1874 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1875 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1876 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1877 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1878 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1879 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1880 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1881 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1884 : SHL | SHR | ASHR | LSHR
1888 : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | FPTOUI | FPTOSI
1889 | UITOFP | SITOFP | PTRTOINT | INTTOPTR | BITCAST | CAST
1892 // These are some types that allow classification if we only want a particular
1893 // thing... for example, only a signed, unsigned, or integral type.
1895 : LONG | INT | SHORT | SBYTE
1899 : ULONG | UINT | USHORT | UBYTE
1903 : SIntType | UIntType
1910 // OptAssign - Value producing statements have an optional assignment component
1920 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1921 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1922 | WEAK { $$ = GlobalValue::WeakLinkage; }
1923 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1924 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1925 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1926 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1927 | /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1931 : /*empty*/ { $$ = OldCallingConv::C; }
1932 | CCC_TOK { $$ = OldCallingConv::C; }
1933 | CSRETCC_TOK { $$ = OldCallingConv::CSRet; }
1934 | FASTCC_TOK { $$ = OldCallingConv::Fast; }
1935 | COLDCC_TOK { $$ = OldCallingConv::Cold; }
1936 | X86_STDCALLCC_TOK { $$ = OldCallingConv::X86_StdCall; }
1937 | X86_FASTCALLCC_TOK { $$ = OldCallingConv::X86_FastCall; }
1938 | CC_TOK EUINT64VAL {
1939 if ((unsigned)$2 != $2)
1940 error("Calling conv too large");
1945 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1946 // a comma before it.
1948 : /*empty*/ { $$ = 0; }
1949 | ALIGN EUINT64VAL {
1951 if ($$ != 0 && !isPowerOf2_32($$))
1952 error("Alignment must be a power of two");
1957 : /*empty*/ { $$ = 0; }
1958 | ',' ALIGN EUINT64VAL {
1960 if ($$ != 0 && !isPowerOf2_32($$))
1961 error("Alignment must be a power of two");
1966 : SECTION STRINGCONSTANT {
1967 for (unsigned i = 0, e = strlen($2); i != e; ++i)
1968 if ($2[i] == '"' || $2[i] == '\\')
1969 error("Invalid character in section name");
1975 : /*empty*/ { $$ = 0; }
1976 | SectionString { $$ = $1; }
1979 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
1980 // is set to be the global we are processing.
1984 | ',' GlobalVarAttribute GlobalVarAttributes {}
1989 CurGV->setSection($1);
1992 | ALIGN EUINT64VAL {
1993 if ($2 != 0 && !isPowerOf2_32($2))
1994 error("Alignment must be a power of two");
1995 CurGV->setAlignment($2);
2000 //===----------------------------------------------------------------------===//
2001 // Types includes all predefined types... except void, because it can only be
2002 // used in specific contexts (function returning void for example). To have
2003 // access to it, a user must explicitly use TypesV.
2006 // TypesV includes all of 'Types', but it also includes the void type.
2010 $$.PAT = new PATypeHolder($1.T);
2011 $$.S.makeSignless();
2018 $$.PAT = new PATypeHolder($1.T);
2019 $$.S.makeSignless();
2025 if (!UpRefs.empty())
2026 error("Invalid upreference in type: " + (*$1.PAT)->getDescription());
2032 : BOOL | SBYTE | UBYTE | SHORT | USHORT | INT | UINT
2033 | LONG | ULONG | FLOAT | DOUBLE | LABEL
2036 // Derived types are added later...
2039 $$.PAT = new PATypeHolder($1.T);
2043 $$.PAT = new PATypeHolder(OpaqueType::get());
2044 $$.S.makeSignless();
2046 | SymbolicValueRef { // Named types are also simple types...
2047 $$.S.copy(getTypeSign($1));
2048 const Type* tmp = getType($1);
2049 $$.PAT = new PATypeHolder(tmp);
2051 | '\\' EUINT64VAL { // Type UpReference
2052 if ($2 > (uint64_t)~0U)
2053 error("Value out of range");
2054 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
2055 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
2056 $$.PAT = new PATypeHolder(OT);
2057 $$.S.makeSignless();
2058 UR_OUT("New Upreference!\n");
2060 | UpRTypesV '(' ArgTypeListI ')' { // Function derived type?
2061 $$.S.makeComposite($1.S);
2062 std::vector<const Type*> Params;
2063 for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
2064 E = $3->end(); I != E; ++I) {
2065 Params.push_back(I->PAT->get());
2068 FunctionType::ParamAttrsList ParamAttrs;
2069 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
2070 if (isVarArg) Params.pop_back();
2072 $$.PAT = new PATypeHolder(
2073 HandleUpRefs(FunctionType::get($1.PAT->get(), Params, isVarArg,
2074 ParamAttrs), $$.S));
2075 delete $1.PAT; // Delete the return type handle
2076 delete $3; // Delete the argument list
2078 | '[' EUINT64VAL 'x' UpRTypes ']' { // Sized array type?
2079 $$.S.makeComposite($4.S);
2080 $$.PAT = new PATypeHolder(HandleUpRefs(ArrayType::get($4.PAT->get(),
2081 (unsigned)$2), $$.S));
2084 | '<' EUINT64VAL 'x' UpRTypes '>' { // Vector type?
2085 const llvm::Type* ElemTy = $4.PAT->get();
2086 if ((unsigned)$2 != $2)
2087 error("Unsigned result not equal to signed result");
2088 if (!(ElemTy->isInteger() || ElemTy->isFloatingPoint()))
2089 error("Elements of a VectorType must be integer or floating point");
2090 if (!isPowerOf2_32($2))
2091 error("VectorType length should be a power of 2");
2092 $$.S.makeComposite($4.S);
2093 $$.PAT = new PATypeHolder(HandleUpRefs(VectorType::get(ElemTy,
2094 (unsigned)$2), $$.S));
2097 | '{' TypeListI '}' { // Structure type?
2098 std::vector<const Type*> Elements;
2099 $$.S.makeComposite();
2100 for (std::list<llvm::PATypeInfo>::iterator I = $2->begin(),
2101 E = $2->end(); I != E; ++I) {
2102 Elements.push_back(I->PAT->get());
2105 $$.PAT = new PATypeHolder(HandleUpRefs(StructType::get(Elements), $$.S));
2108 | '{' '}' { // Empty structure type?
2109 $$.PAT = new PATypeHolder(StructType::get(std::vector<const Type*>()));
2110 $$.S.makeComposite();
2112 | '<' '{' TypeListI '}' '>' { // Packed Structure type?
2113 $$.S.makeComposite();
2114 std::vector<const Type*> Elements;
2115 for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
2116 E = $3->end(); I != E; ++I) {
2117 Elements.push_back(I->PAT->get());
2121 $$.PAT = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true),
2125 | '<' '{' '}' '>' { // Empty packed structure type?
2126 $$.PAT = new PATypeHolder(StructType::get(std::vector<const Type*>(),true));
2127 $$.S.makeComposite();
2129 | UpRTypes '*' { // Pointer type?
2130 if ($1.PAT->get() == Type::LabelTy)
2131 error("Cannot form a pointer to a basic block");
2132 $$.S.makeComposite($1.S);
2133 $$.PAT = new PATypeHolder(HandleUpRefs(PointerType::get($1.PAT->get()),
2139 // TypeList - Used for struct declarations and as a basis for function type
2140 // declaration type lists
2144 $$ = new std::list<PATypeInfo>();
2147 | TypeListI ',' UpRTypes {
2148 ($$=$1)->push_back($3);
2152 // ArgTypeList - List of types for a function type declaration...
2155 | TypeListI ',' DOTDOTDOT {
2157 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2158 VoidTI.S.makeSignless();
2159 ($$=$1)->push_back(VoidTI);
2162 $$ = new std::list<PATypeInfo>();
2164 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2165 VoidTI.S.makeSignless();
2166 $$->push_back(VoidTI);
2169 $$ = new std::list<PATypeInfo>();
2173 // ConstVal - The various declarations that go into the constant pool. This
2174 // production is used ONLY to represent constants that show up AFTER a 'const',
2175 // 'constant' or 'global' token at global scope. Constants that can be inlined
2176 // into other expressions (such as integers and constexprs) are handled by the
2177 // ResolvedVal, ValueRef and ConstValueRef productions.
2180 : Types '[' ConstVector ']' { // Nonempty unsized arr
2181 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2183 error("Cannot make array constant with type: '" +
2184 $1.PAT->get()->getDescription() + "'");
2185 const Type *ETy = ATy->getElementType();
2186 int NumElements = ATy->getNumElements();
2188 // Verify that we have the correct size...
2189 if (NumElements != -1 && NumElements != (int)$3->size())
2190 error("Type mismatch: constant sized array initialized with " +
2191 utostr($3->size()) + " arguments, but has size of " +
2192 itostr(NumElements) + "");
2194 // Verify all elements are correct type!
2195 std::vector<Constant*> Elems;
2196 for (unsigned i = 0; i < $3->size(); i++) {
2197 Constant *C = (*$3)[i].C;
2198 const Type* ValTy = C->getType();
2200 error("Element #" + utostr(i) + " is not of type '" +
2201 ETy->getDescription() +"' as required!\nIt is of type '"+
2202 ValTy->getDescription() + "'");
2205 $$.C = ConstantArray::get(ATy, Elems);
2211 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2213 error("Cannot make array constant with type: '" +
2214 $1.PAT->get()->getDescription() + "'");
2215 int NumElements = ATy->getNumElements();
2216 if (NumElements != -1 && NumElements != 0)
2217 error("Type mismatch: constant sized array initialized with 0"
2218 " arguments, but has size of " + itostr(NumElements) +"");
2219 $$.C = ConstantArray::get(ATy, std::vector<Constant*>());
2223 | Types 'c' STRINGCONSTANT {
2224 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2226 error("Cannot make array constant with type: '" +
2227 $1.PAT->get()->getDescription() + "'");
2228 int NumElements = ATy->getNumElements();
2229 const Type *ETy = dyn_cast<IntegerType>(ATy->getElementType());
2230 if (!ETy || cast<IntegerType>(ETy)->getBitWidth() != 8)
2231 error("String arrays require type i8, not '" + ETy->getDescription() +
2233 char *EndStr = UnEscapeLexed($3, true);
2234 if (NumElements != -1 && NumElements != (EndStr-$3))
2235 error("Can't build string constant of size " +
2236 itostr((int)(EndStr-$3)) + " when array has size " +
2237 itostr(NumElements) + "");
2238 std::vector<Constant*> Vals;
2239 for (char *C = (char *)$3; C != (char *)EndStr; ++C)
2240 Vals.push_back(ConstantInt::get(ETy, *C));
2242 $$.C = ConstantArray::get(ATy, Vals);
2246 | Types '<' ConstVector '>' { // Nonempty unsized arr
2247 const VectorType *PTy = dyn_cast<VectorType>($1.PAT->get());
2249 error("Cannot make packed constant with type: '" +
2250 $1.PAT->get()->getDescription() + "'");
2251 const Type *ETy = PTy->getElementType();
2252 int NumElements = PTy->getNumElements();
2253 // Verify that we have the correct size...
2254 if (NumElements != -1 && NumElements != (int)$3->size())
2255 error("Type mismatch: constant sized packed initialized with " +
2256 utostr($3->size()) + " arguments, but has size of " +
2257 itostr(NumElements) + "");
2258 // Verify all elements are correct type!
2259 std::vector<Constant*> Elems;
2260 for (unsigned i = 0; i < $3->size(); i++) {
2261 Constant *C = (*$3)[i].C;
2262 const Type* ValTy = C->getType();
2264 error("Element #" + utostr(i) + " is not of type '" +
2265 ETy->getDescription() +"' as required!\nIt is of type '"+
2266 ValTy->getDescription() + "'");
2269 $$.C = ConstantVector::get(PTy, Elems);
2274 | Types '{' ConstVector '}' {
2275 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2277 error("Cannot make struct constant with type: '" +
2278 $1.PAT->get()->getDescription() + "'");
2279 if ($3->size() != STy->getNumContainedTypes())
2280 error("Illegal number of initializers for structure type");
2282 // Check to ensure that constants are compatible with the type initializer!
2283 std::vector<Constant*> Fields;
2284 for (unsigned i = 0, e = $3->size(); i != e; ++i) {
2285 Constant *C = (*$3)[i].C;
2286 if (C->getType() != STy->getElementType(i))
2287 error("Expected type '" + STy->getElementType(i)->getDescription() +
2288 "' for element #" + utostr(i) + " of structure initializer");
2289 Fields.push_back(C);
2291 $$.C = ConstantStruct::get(STy, Fields);
2297 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2299 error("Cannot make struct constant with type: '" +
2300 $1.PAT->get()->getDescription() + "'");
2301 if (STy->getNumContainedTypes() != 0)
2302 error("Illegal number of initializers for structure type");
2303 $$.C = ConstantStruct::get(STy, std::vector<Constant*>());
2307 | Types '<' '{' ConstVector '}' '>' {
2308 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2310 error("Cannot make packed struct constant with type: '" +
2311 $1.PAT->get()->getDescription() + "'");
2312 if ($4->size() != STy->getNumContainedTypes())
2313 error("Illegal number of initializers for packed structure type");
2315 // Check to ensure that constants are compatible with the type initializer!
2316 std::vector<Constant*> Fields;
2317 for (unsigned i = 0, e = $4->size(); i != e; ++i) {
2318 Constant *C = (*$4)[i].C;
2319 if (C->getType() != STy->getElementType(i))
2320 error("Expected type '" + STy->getElementType(i)->getDescription() +
2321 "' for element #" + utostr(i) + " of packed struct initializer");
2322 Fields.push_back(C);
2324 $$.C = ConstantStruct::get(STy, Fields);
2329 | Types '<' '{' '}' '>' {
2330 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2332 error("Cannot make packed struct constant with type: '" +
2333 $1.PAT->get()->getDescription() + "'");
2334 if (STy->getNumContainedTypes() != 0)
2335 error("Illegal number of initializers for packed structure type");
2336 $$.C = ConstantStruct::get(STy, std::vector<Constant*>());
2341 const PointerType *PTy = dyn_cast<PointerType>($1.PAT->get());
2343 error("Cannot make null pointer constant with type: '" +
2344 $1.PAT->get()->getDescription() + "'");
2345 $$.C = ConstantPointerNull::get(PTy);
2350 $$.C = UndefValue::get($1.PAT->get());
2354 | Types SymbolicValueRef {
2355 const PointerType *Ty = dyn_cast<PointerType>($1.PAT->get());
2357 error("Global const reference must be a pointer type, not" +
2358 $1.PAT->get()->getDescription());
2360 // ConstExprs can exist in the body of a function, thus creating
2361 // GlobalValues whenever they refer to a variable. Because we are in
2362 // the context of a function, getExistingValue will search the functions
2363 // symbol table instead of the module symbol table for the global symbol,
2364 // which throws things all off. To get around this, we just tell
2365 // getExistingValue that we are at global scope here.
2367 Function *SavedCurFn = CurFun.CurrentFunction;
2368 CurFun.CurrentFunction = 0;
2370 Value *V = getExistingValue(Ty, $2);
2371 CurFun.CurrentFunction = SavedCurFn;
2373 // If this is an initializer for a constant pointer, which is referencing a
2374 // (currently) undefined variable, create a stub now that shall be replaced
2375 // in the future with the right type of variable.
2378 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers");
2379 const PointerType *PT = cast<PointerType>(Ty);
2381 // First check to see if the forward references value is already created!
2382 PerModuleInfo::GlobalRefsType::iterator I =
2383 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
2385 if (I != CurModule.GlobalRefs.end()) {
2386 V = I->second; // Placeholder already exists, use it...
2390 if ($2.Type == ValID::NameVal) Name = $2.Name;
2392 // Create the forward referenced global.
2394 if (const FunctionType *FTy =
2395 dyn_cast<FunctionType>(PT->getElementType())) {
2396 GV = new Function(FTy, GlobalValue::ExternalLinkage, Name,
2397 CurModule.CurrentModule);
2399 GV = new GlobalVariable(PT->getElementType(), false,
2400 GlobalValue::ExternalLinkage, 0,
2401 Name, CurModule.CurrentModule);
2404 // Keep track of the fact that we have a forward ref to recycle it
2405 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
2409 $$.C = cast<GlobalValue>(V);
2411 delete $1.PAT; // Free the type handle
2414 if ($1.PAT->get() != $2.C->getType())
2415 error("Mismatched types for constant expression");
2420 | Types ZEROINITIALIZER {
2421 const Type *Ty = $1.PAT->get();
2422 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
2423 error("Cannot create a null initialized value of this type");
2424 $$.C = Constant::getNullValue(Ty);
2428 | SIntType EINT64VAL { // integral constants
2429 const Type *Ty = $1.T;
2430 if (!ConstantInt::isValueValidForType(Ty, $2))
2431 error("Constant value doesn't fit in type");
2432 $$.C = ConstantInt::get(Ty, $2);
2435 | UIntType EUINT64VAL { // integral constants
2436 const Type *Ty = $1.T;
2437 if (!ConstantInt::isValueValidForType(Ty, $2))
2438 error("Constant value doesn't fit in type");
2439 $$.C = ConstantInt::get(Ty, $2);
2440 $$.S.makeUnsigned();
2442 | BOOL TRUETOK { // Boolean constants
2443 $$.C = ConstantInt::get(Type::Int1Ty, true);
2444 $$.S.makeUnsigned();
2446 | BOOL FALSETOK { // Boolean constants
2447 $$.C = ConstantInt::get(Type::Int1Ty, false);
2448 $$.S.makeUnsigned();
2450 | FPType FPVAL { // Float & Double constants
2451 if (!ConstantFP::isValueValidForType($1.T, $2))
2452 error("Floating point constant invalid for type");
2453 $$.C = ConstantFP::get($1.T, $2);
2454 $$.S.makeSignless();
2459 : CastOps '(' ConstVal TO Types ')' {
2460 const Type* SrcTy = $3.C->getType();
2461 const Type* DstTy = $5.PAT->get();
2462 Signedness SrcSign($3.S);
2463 Signedness DstSign($5.S);
2464 if (!SrcTy->isFirstClassType())
2465 error("cast constant expression from a non-primitive type: '" +
2466 SrcTy->getDescription() + "'");
2467 if (!DstTy->isFirstClassType())
2468 error("cast constant expression to a non-primitive type: '" +
2469 DstTy->getDescription() + "'");
2470 $$.C = cast<Constant>(getCast($1, $3.C, SrcSign, DstTy, DstSign));
2474 | GETELEMENTPTR '(' ConstVal IndexList ')' {
2475 const Type *Ty = $3.C->getType();
2476 if (!isa<PointerType>(Ty))
2477 error("GetElementPtr requires a pointer operand");
2479 std::vector<Value*> VIndices;
2480 std::vector<Constant*> CIndices;
2481 upgradeGEPIndices($3.C->getType(), $4, VIndices, &CIndices);
2484 $$.C = ConstantExpr::getGetElementPtr($3.C, &CIndices[0], CIndices.size());
2485 $$.S.copy(getElementSign($3, CIndices));
2487 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2488 if (!$3.C->getType()->isInteger() ||
2489 cast<IntegerType>($3.C->getType())->getBitWidth() != 1)
2490 error("Select condition must be bool type");
2491 if ($5.C->getType() != $7.C->getType())
2492 error("Select operand types must match");
2493 $$.C = ConstantExpr::getSelect($3.C, $5.C, $7.C);
2496 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
2497 const Type *Ty = $3.C->getType();
2498 if (Ty != $5.C->getType())
2499 error("Binary operator types must match");
2500 // First, make sure we're dealing with the right opcode by upgrading from
2501 // obsolete versions.
2502 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $3.S);
2504 // HACK: llvm 1.3 and earlier used to emit invalid pointer constant exprs.
2505 // To retain backward compatibility with these early compilers, we emit a
2506 // cast to the appropriate integer type automatically if we are in the
2507 // broken case. See PR424 for more information.
2508 if (!isa<PointerType>(Ty)) {
2509 $$.C = ConstantExpr::get(Opcode, $3.C, $5.C);
2511 const Type *IntPtrTy = 0;
2512 switch (CurModule.CurrentModule->getPointerSize()) {
2513 case Module::Pointer32: IntPtrTy = Type::Int32Ty; break;
2514 case Module::Pointer64: IntPtrTy = Type::Int64Ty; break;
2515 default: error("invalid pointer binary constant expr");
2517 $$.C = ConstantExpr::get(Opcode,
2518 ConstantExpr::getCast(Instruction::PtrToInt, $3.C, IntPtrTy),
2519 ConstantExpr::getCast(Instruction::PtrToInt, $5.C, IntPtrTy));
2520 $$.C = ConstantExpr::getCast(Instruction::IntToPtr, $$.C, Ty);
2524 | LogicalOps '(' ConstVal ',' ConstVal ')' {
2525 const Type* Ty = $3.C->getType();
2526 if (Ty != $5.C->getType())
2527 error("Logical operator types must match");
2528 if (!Ty->isInteger()) {
2529 if (!isa<VectorType>(Ty) ||
2530 !cast<VectorType>(Ty)->getElementType()->isInteger())
2531 error("Logical operator requires integer operands");
2533 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $3.S);
2534 $$.C = ConstantExpr::get(Opcode, $3.C, $5.C);
2537 | SetCondOps '(' ConstVal ',' ConstVal ')' {
2538 const Type* Ty = $3.C->getType();
2539 if (Ty != $5.C->getType())
2540 error("setcc operand types must match");
2541 unsigned short pred;
2542 Instruction::OtherOps Opcode = getCompareOp($1, pred, Ty, $3.S);
2543 $$.C = ConstantExpr::getCompare(Opcode, $3.C, $5.C);
2544 $$.S.makeUnsigned();
2546 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2547 if ($4.C->getType() != $6.C->getType())
2548 error("icmp operand types must match");
2549 $$.C = ConstantExpr::getCompare($2, $4.C, $6.C);
2550 $$.S.makeUnsigned();
2552 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2553 if ($4.C->getType() != $6.C->getType())
2554 error("fcmp operand types must match");
2555 $$.C = ConstantExpr::getCompare($2, $4.C, $6.C);
2556 $$.S.makeUnsigned();
2558 | ShiftOps '(' ConstVal ',' ConstVal ')' {
2559 if (!$5.C->getType()->isInteger() ||
2560 cast<IntegerType>($5.C->getType())->getBitWidth() != 8)
2561 error("Shift count for shift constant must be unsigned byte");
2562 const Type* Ty = $3.C->getType();
2563 if (!$3.C->getType()->isInteger())
2564 error("Shift constant expression requires integer operand");
2565 Constant *ShiftAmt = ConstantExpr::getZExt($5.C, Ty);
2566 $$.C = ConstantExpr::get(getBinaryOp($1, Ty, $3.S), $3.C, ShiftAmt);
2569 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
2570 if (!ExtractElementInst::isValidOperands($3.C, $5.C))
2571 error("Invalid extractelement operands");
2572 $$.C = ConstantExpr::getExtractElement($3.C, $5.C);
2573 $$.S.copy($3.S.get(0));
2575 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2576 if (!InsertElementInst::isValidOperands($3.C, $5.C, $7.C))
2577 error("Invalid insertelement operands");
2578 $$.C = ConstantExpr::getInsertElement($3.C, $5.C, $7.C);
2581 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2582 if (!ShuffleVectorInst::isValidOperands($3.C, $5.C, $7.C))
2583 error("Invalid shufflevector operands");
2584 $$.C = ConstantExpr::getShuffleVector($3.C, $5.C, $7.C);
2590 // ConstVector - A list of comma separated constants.
2592 : ConstVector ',' ConstVal { ($$ = $1)->push_back($3); }
2594 $$ = new std::vector<ConstInfo>();
2600 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
2602 : GLOBAL { $$ = false; }
2603 | CONSTANT { $$ = true; }
2607 //===----------------------------------------------------------------------===//
2608 // Rules to match Modules
2609 //===----------------------------------------------------------------------===//
2611 // Module rule: Capture the result of parsing the whole file into a result
2616 $$ = ParserResult = $1;
2617 CurModule.ModuleDone();
2621 // FunctionList - A list of functions, preceeded by a constant pool.
2624 : FunctionList Function { $$ = $1; CurFun.FunctionDone(); }
2625 | FunctionList FunctionProto { $$ = $1; }
2626 | FunctionList MODULE ASM_TOK AsmBlock { $$ = $1; }
2627 | FunctionList IMPLEMENTATION { $$ = $1; }
2629 $$ = CurModule.CurrentModule;
2630 // Emit an error if there are any unresolved types left.
2631 if (!CurModule.LateResolveTypes.empty()) {
2632 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
2633 if (DID.Type == ValID::NameVal) {
2634 error("Reference to an undefined type: '"+DID.getName() + "'");
2636 error("Reference to an undefined type: #" + itostr(DID.Num));
2642 // ConstPool - Constants with optional names assigned to them.
2644 : ConstPool OptAssign TYPE TypesV {
2645 // Eagerly resolve types. This is not an optimization, this is a
2646 // requirement that is due to the fact that we could have this:
2648 // %list = type { %list * }
2649 // %list = type { %list * } ; repeated type decl
2651 // If types are not resolved eagerly, then the two types will not be
2652 // determined to be the same type!
2654 ResolveTypeTo($2, $4.PAT->get(), $4.S);
2656 if (!setTypeName($4, $2) && !$2) {
2657 // If this is a numbered type that is not a redefinition, add it to the
2659 CurModule.Types.push_back($4.PAT->get());
2660 CurModule.TypeSigns.push_back($4.S);
2664 | ConstPool FunctionProto { // Function prototypes can be in const pool
2666 | ConstPool MODULE ASM_TOK AsmBlock { // Asm blocks can be in the const pool
2668 | ConstPool OptAssign OptLinkage GlobalType ConstVal {
2670 error("Global value initializer is not a constant");
2671 CurGV = ParseGlobalVariable($2, $3, $4, $5.C->getType(), $5.C, $5.S);
2672 } GlobalVarAttributes {
2675 | ConstPool OptAssign EXTERNAL GlobalType Types {
2676 const Type *Ty = $5.PAT->get();
2677 CurGV = ParseGlobalVariable($2, GlobalValue::ExternalLinkage, $4, Ty, 0,
2680 } GlobalVarAttributes {
2683 | ConstPool OptAssign DLLIMPORT GlobalType Types {
2684 const Type *Ty = $5.PAT->get();
2685 CurGV = ParseGlobalVariable($2, GlobalValue::DLLImportLinkage, $4, Ty, 0,
2688 } GlobalVarAttributes {
2691 | ConstPool OptAssign EXTERN_WEAK GlobalType Types {
2692 const Type *Ty = $5.PAT->get();
2694 ParseGlobalVariable($2, GlobalValue::ExternalWeakLinkage, $4, Ty, 0,
2697 } GlobalVarAttributes {
2700 | ConstPool TARGET TargetDefinition {
2702 | ConstPool DEPLIBS '=' LibrariesDefinition {
2704 | /* empty: end of list */ {
2710 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2711 char *EndStr = UnEscapeLexed($1, true);
2712 std::string NewAsm($1, EndStr);
2715 if (AsmSoFar.empty())
2716 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2718 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2723 : BIG { $$ = Module::BigEndian; }
2724 | LITTLE { $$ = Module::LittleEndian; }
2728 : ENDIAN '=' BigOrLittle {
2729 CurModule.setEndianness($3);
2731 | POINTERSIZE '=' EUINT64VAL {
2733 CurModule.setPointerSize(Module::Pointer32);
2735 CurModule.setPointerSize(Module::Pointer64);
2737 error("Invalid pointer size: '" + utostr($3) + "'");
2739 | TRIPLE '=' STRINGCONSTANT {
2740 CurModule.CurrentModule->setTargetTriple($3);
2743 | DATALAYOUT '=' STRINGCONSTANT {
2744 CurModule.CurrentModule->setDataLayout($3);
2754 : LibList ',' STRINGCONSTANT {
2755 CurModule.CurrentModule->addLibrary($3);
2759 CurModule.CurrentModule->addLibrary($1);
2762 | /* empty: end of list */ { }
2765 //===----------------------------------------------------------------------===//
2766 // Rules to match Function Headers
2767 //===----------------------------------------------------------------------===//
2770 : VAR_ID | STRINGCONSTANT
2775 | /*empty*/ { $$ = 0; }
2780 if ($1.PAT->get() == Type::VoidTy)
2781 error("void typed arguments are invalid");
2782 $$ = new std::pair<PATypeInfo, char*>($1, $2);
2787 : ArgListH ',' ArgVal {
2793 $$ = new std::vector<std::pair<PATypeInfo,char*> >();
2800 : ArgListH { $$ = $1; }
2801 | ArgListH ',' DOTDOTDOT {
2804 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2805 VoidTI.S.makeSignless();
2806 $$->push_back(std::pair<PATypeInfo, char*>(VoidTI, 0));
2809 $$ = new std::vector<std::pair<PATypeInfo,char*> >();
2811 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2812 VoidTI.S.makeSignless();
2813 $$->push_back(std::pair<PATypeInfo, char*>(VoidTI, 0));
2815 | /* empty */ { $$ = 0; }
2819 : OptCallingConv TypesV Name '(' ArgList ')' OptSection OptAlign {
2821 std::string FunctionName($3);
2822 free($3); // Free strdup'd memory!
2824 const Type* RetTy = $2.PAT->get();
2826 if (!RetTy->isFirstClassType() && RetTy != Type::VoidTy)
2827 error("LLVM functions cannot return aggregate types");
2830 FTySign.makeComposite($2.S);
2831 std::vector<const Type*> ParamTyList;
2833 // In LLVM 2.0 the signatures of three varargs intrinsics changed to take
2834 // i8*. We check here for those names and override the parameter list
2835 // types to ensure the prototype is correct.
2836 if (FunctionName == "llvm.va_start" || FunctionName == "llvm.va_end") {
2837 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2838 } else if (FunctionName == "llvm.va_copy") {
2839 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2840 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2841 } else if ($5) { // If there are arguments...
2842 for (std::vector<std::pair<PATypeInfo,char*> >::iterator
2843 I = $5->begin(), E = $5->end(); I != E; ++I) {
2844 const Type *Ty = I->first.PAT->get();
2845 ParamTyList.push_back(Ty);
2846 FTySign.add(I->first.S);
2850 bool isVarArg = ParamTyList.size() && ParamTyList.back() == Type::VoidTy;
2852 ParamTyList.pop_back();
2854 // Convert the CSRet calling convention into the corresponding parameter
2856 FunctionType::ParamAttrsList ParamAttrs;
2857 if ($1 == OldCallingConv::CSRet) {
2858 ParamAttrs.push_back(FunctionType::NoAttributeSet); // result
2859 ParamAttrs.push_back(FunctionType::StructRetAttribute); // first arg
2862 const FunctionType *FT = FunctionType::get(RetTy, ParamTyList, isVarArg,
2864 const PointerType *PFT = PointerType::get(FT);
2868 if (!FunctionName.empty()) {
2869 ID = ValID::create((char*)FunctionName.c_str());
2871 ID = ValID::create((int)CurModule.Values[PFT].size());
2873 ID.S.makeComposite(FTySign);
2876 Module* M = CurModule.CurrentModule;
2878 // See if this function was forward referenced. If so, recycle the object.
2879 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2880 // Move the function to the end of the list, from whereever it was
2881 // previously inserted.
2882 Fn = cast<Function>(FWRef);
2883 M->getFunctionList().remove(Fn);
2884 M->getFunctionList().push_back(Fn);
2885 } else if (!FunctionName.empty()) {
2886 GlobalValue *Conflict = M->getFunction(FunctionName);
2888 Conflict = M->getNamedGlobal(FunctionName);
2889 if (Conflict && PFT == Conflict->getType()) {
2890 if (!CurFun.isDeclare && !Conflict->isDeclaration()) {
2891 // We have two function definitions that conflict, same type, same
2892 // name. We should really check to make sure that this is the result
2893 // of integer type planes collapsing and generate an error if it is
2894 // not, but we'll just rename on the assumption that it is. However,
2895 // let's do it intelligently and rename the internal linkage one
2897 std::string NewName(makeNameUnique(FunctionName));
2898 if (Conflict->hasInternalLinkage()) {
2899 Conflict->setName(NewName);
2901 makeRenameMapKey(FunctionName, Conflict->getType(), ID.S);
2902 CurModule.RenameMap[Key] = NewName;
2903 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
2904 InsertValue(Fn, CurModule.Values);
2906 Fn = new Function(FT, CurFun.Linkage, NewName, M);
2907 InsertValue(Fn, CurModule.Values);
2909 makeRenameMapKey(FunctionName, PFT, ID.S);
2910 CurModule.RenameMap[Key] = NewName;
2913 // If they are not both definitions, then just use the function we
2914 // found since the types are the same.
2915 Fn = cast<Function>(Conflict);
2917 // Make sure to strip off any argument names so we can't get
2919 if (Fn->isDeclaration())
2920 for (Function::arg_iterator AI = Fn->arg_begin(),
2921 AE = Fn->arg_end(); AI != AE; ++AI)
2924 } else if (Conflict) {
2925 // We have two globals with the same name and different types.
2926 // Previously, this was permitted because the symbol table had
2927 // "type planes" and names only needed to be distinct within a
2928 // type plane. After PR411 was fixed, this is no loner the case.
2929 // To resolve this we must rename one of the two.
2930 if (Conflict->hasInternalLinkage()) {
2931 // We can safely rename the Conflict.
2933 makeRenameMapKey(Conflict->getName(), Conflict->getType(),
2934 CurModule.NamedValueSigns[Conflict->getName()]);
2935 Conflict->setName(makeNameUnique(Conflict->getName()));
2936 CurModule.RenameMap[Key] = Conflict->getName();
2937 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
2938 InsertValue(Fn, CurModule.Values);
2939 } else if (CurFun.Linkage == GlobalValue::InternalLinkage) {
2940 // We can safely rename the function we're defining
2941 std::string NewName = makeNameUnique(FunctionName);
2942 Fn = new Function(FT, CurFun.Linkage, NewName, M);
2943 InsertValue(Fn, CurModule.Values);
2944 RenameMapKey Key = makeRenameMapKey(FunctionName, PFT, ID.S);
2945 CurModule.RenameMap[Key] = NewName;
2947 // We can't quietly rename either of these things, but we must
2948 // rename one of them. Generate a warning about the renaming and
2949 // elect to rename the thing we're now defining.
2950 std::string NewName = makeNameUnique(FunctionName);
2951 warning("Renaming function '" + FunctionName + "' as '" + NewName +
2952 "' may cause linkage errors");
2953 Fn = new Function(FT, CurFun.Linkage, NewName, M);
2954 InsertValue(Fn, CurModule.Values);
2955 RenameMapKey Key = makeRenameMapKey(FunctionName, PFT, ID.S);
2956 CurModule.RenameMap[Key] = NewName;
2959 // There's no conflict, just define the function
2960 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
2961 InsertValue(Fn, CurModule.Values);
2965 CurFun.FunctionStart(Fn);
2967 if (CurFun.isDeclare) {
2968 // If we have declaration, always overwrite linkage. This will allow us
2969 // to correctly handle cases, when pointer to function is passed as
2970 // argument to another function.
2971 Fn->setLinkage(CurFun.Linkage);
2973 Fn->setCallingConv(upgradeCallingConv($1));
2974 Fn->setAlignment($8);
2980 // Add all of the arguments we parsed to the function...
2981 if ($5) { // Is null if empty...
2982 if (isVarArg) { // Nuke the last entry
2983 assert($5->back().first.PAT->get() == Type::VoidTy &&
2984 $5->back().second == 0 && "Not a varargs marker");
2985 delete $5->back().first.PAT;
2986 $5->pop_back(); // Delete the last entry
2988 Function::arg_iterator ArgIt = Fn->arg_begin();
2989 Function::arg_iterator ArgEnd = Fn->arg_end();
2990 std::vector<std::pair<PATypeInfo,char*> >::iterator I = $5->begin();
2991 std::vector<std::pair<PATypeInfo,char*> >::iterator E = $5->end();
2992 for ( ; I != E && ArgIt != ArgEnd; ++I, ++ArgIt) {
2993 delete I->first.PAT; // Delete the typeholder...
2994 ValueInfo VI; VI.V = ArgIt; VI.S.copy(I->first.S);
2995 setValueName(VI, I->second); // Insert arg into symtab...
2998 delete $5; // We're now done with the argument list
3004 : BEGINTOK | '{' // Allow BEGIN or '{' to start a function
3008 : OptLinkage FunctionHeaderH BEGIN {
3009 $$ = CurFun.CurrentFunction;
3011 // Make sure that we keep track of the linkage type even if there was a
3012 // previous "declare".
3018 : ENDTOK | '}' // Allow end of '}' to end a function
3022 : BasicBlockList END {
3027 : /*default*/ { $$ = GlobalValue::ExternalLinkage; }
3028 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
3029 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
3033 : DECLARE { CurFun.isDeclare = true; }
3034 FnDeclareLinkage { CurFun.Linkage = $3; } FunctionHeaderH {
3035 $$ = CurFun.CurrentFunction;
3036 CurFun.FunctionDone();
3041 //===----------------------------------------------------------------------===//
3042 // Rules to match Basic Blocks
3043 //===----------------------------------------------------------------------===//
3046 : /* empty */ { $$ = false; }
3047 | SIDEEFFECT { $$ = true; }
3051 // A reference to a direct constant
3052 : ESINT64VAL { $$ = ValID::create($1); }
3053 | EUINT64VAL { $$ = ValID::create($1); }
3054 | FPVAL { $$ = ValID::create($1); }
3056 $$ = ValID::create(ConstantInt::get(Type::Int1Ty, true));
3057 $$.S.makeUnsigned();
3060 $$ = ValID::create(ConstantInt::get(Type::Int1Ty, false));
3061 $$.S.makeUnsigned();
3063 | NULL_TOK { $$ = ValID::createNull(); }
3064 | UNDEF { $$ = ValID::createUndef(); }
3065 | ZEROINITIALIZER { $$ = ValID::createZeroInit(); }
3066 | '<' ConstVector '>' { // Nonempty unsized packed vector
3067 const Type *ETy = (*$2)[0].C->getType();
3068 int NumElements = $2->size();
3069 VectorType* pt = VectorType::get(ETy, NumElements);
3070 $$.S.makeComposite((*$2)[0].S);
3071 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt, $$.S));
3073 // Verify all elements are correct type!
3074 std::vector<Constant*> Elems;
3075 for (unsigned i = 0; i < $2->size(); i++) {
3076 Constant *C = (*$2)[i].C;
3077 const Type *CTy = C->getType();
3079 error("Element #" + utostr(i) + " is not of type '" +
3080 ETy->getDescription() +"' as required!\nIt is of type '" +
3081 CTy->getDescription() + "'");
3084 $$ = ValID::create(ConstantVector::get(pt, Elems));
3085 delete PTy; delete $2;
3088 $$ = ValID::create($1.C);
3091 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
3092 char *End = UnEscapeLexed($3, true);
3093 std::string AsmStr = std::string($3, End);
3094 End = UnEscapeLexed($5, true);
3095 std::string Constraints = std::string($5, End);
3096 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
3102 // SymbolicValueRef - Reference to one of two ways of symbolically refering to // another value.
3105 : INTVAL { $$ = ValID::create($1); $$.S.makeSignless(); }
3106 | Name { $$ = ValID::create($1); $$.S.makeSignless(); }
3109 // ValueRef - A reference to a definition... either constant or symbolic
3111 : SymbolicValueRef | ConstValueRef
3115 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
3116 // type immediately preceeds the value reference, and allows complex constant
3117 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
3120 const Type *Ty = $1.PAT->get();
3122 $$.V = getVal(Ty, $2);
3129 : BasicBlockList BasicBlock {
3132 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
3137 // Basic blocks are terminated by branching instructions:
3138 // br, br/cc, switch, ret
3141 : InstructionList OptAssign BBTerminatorInst {
3142 ValueInfo VI; VI.V = $3.TI; VI.S.copy($3.S);
3143 setValueName(VI, $2);
3145 $1->getInstList().push_back($3.TI);
3152 : InstructionList Inst {
3154 $1->getInstList().push_back($2.I);
3158 $$ = CurBB = getBBVal(ValID::create((int)CurFun.NextBBNum++),true);
3159 // Make sure to move the basic block to the correct location in the
3160 // function, instead of leaving it inserted wherever it was first
3162 Function::BasicBlockListType &BBL =
3163 CurFun.CurrentFunction->getBasicBlockList();
3164 BBL.splice(BBL.end(), BBL, $$);
3167 $$ = CurBB = getBBVal(ValID::create($1), true);
3168 // Make sure to move the basic block to the correct location in the
3169 // function, instead of leaving it inserted wherever it was first
3171 Function::BasicBlockListType &BBL =
3172 CurFun.CurrentFunction->getBasicBlockList();
3173 BBL.splice(BBL.end(), BBL, $$);
3177 Unwind : UNWIND | EXCEPT;
3180 : RET ResolvedVal { // Return with a result...
3181 $$.TI = new ReturnInst($2.V);
3182 $$.S.makeSignless();
3184 | RET VOID { // Return with no result...
3185 $$.TI = new ReturnInst();
3186 $$.S.makeSignless();
3188 | BR LABEL ValueRef { // Unconditional Branch...
3189 BasicBlock* tmpBB = getBBVal($3);
3190 $$.TI = new BranchInst(tmpBB);
3191 $$.S.makeSignless();
3192 } // Conditional Branch...
3193 | BR BOOL ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
3194 $6.S.makeSignless();
3195 $9.S.makeSignless();
3196 BasicBlock* tmpBBA = getBBVal($6);
3197 BasicBlock* tmpBBB = getBBVal($9);
3198 $3.S.makeUnsigned();
3199 Value* tmpVal = getVal(Type::Int1Ty, $3);
3200 $$.TI = new BranchInst(tmpBBA, tmpBBB, tmpVal);
3201 $$.S.makeSignless();
3203 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
3205 Value* tmpVal = getVal($2.T, $3);
3206 $6.S.makeSignless();
3207 BasicBlock* tmpBB = getBBVal($6);
3208 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
3210 $$.S.makeSignless();
3211 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
3213 for (; I != E; ++I) {
3214 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
3215 S->addCase(CI, I->second);
3217 error("Switch case is constant, but not a simple integer");
3221 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
3223 Value* tmpVal = getVal($2.T, $3);
3224 $6.S.makeSignless();
3225 BasicBlock* tmpBB = getBBVal($6);
3226 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
3228 $$.S.makeSignless();
3230 | INVOKE OptCallingConv TypesV ValueRef '(' ValueRefListE ')'
3231 TO LABEL ValueRef Unwind LABEL ValueRef {
3232 const PointerType *PFTy;
3233 const FunctionType *Ty;
3236 if (!(PFTy = dyn_cast<PointerType>($3.PAT->get())) ||
3237 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3238 // Pull out the types of all of the arguments...
3239 std::vector<const Type*> ParamTypes;
3240 FTySign.makeComposite($3.S);
3242 for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
3244 ParamTypes.push_back((*I).V->getType());
3248 FunctionType::ParamAttrsList ParamAttrs;
3249 if ($2 == OldCallingConv::CSRet) {
3250 ParamAttrs.push_back(FunctionType::NoAttributeSet);
3251 ParamAttrs.push_back(FunctionType::StructRetAttribute);
3253 bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
3254 if (isVarArg) ParamTypes.pop_back();
3255 Ty = FunctionType::get($3.PAT->get(), ParamTypes, isVarArg, ParamAttrs);
3256 PFTy = PointerType::get(Ty);
3260 $$.S.copy($3.S.get(0)); // 0th element of FuncTy sign is result ty
3262 $4.S.makeComposite(FTySign);
3263 Value *V = getVal(PFTy, $4); // Get the function we're calling...
3264 BasicBlock *Normal = getBBVal($10);
3265 BasicBlock *Except = getBBVal($13);
3267 // Create the call node...
3268 if (!$6) { // Has no arguments?
3269 $$.TI = new InvokeInst(V, Normal, Except, 0, 0);
3270 } else { // Has arguments?
3271 // Loop through FunctionType's arguments and ensure they are specified
3274 FunctionType::param_iterator I = Ty->param_begin();
3275 FunctionType::param_iterator E = Ty->param_end();
3276 std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
3278 std::vector<Value*> Args;
3279 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
3280 if ((*ArgI).V->getType() != *I)
3281 error("Parameter " +(*ArgI).V->getName()+ " is not of type '" +
3282 (*I)->getDescription() + "'");
3283 Args.push_back((*ArgI).V);
3286 if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
3287 error("Invalid number of parameters detected");
3289 $$.TI = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
3291 cast<InvokeInst>($$.TI)->setCallingConv(upgradeCallingConv($2));
3296 $$.TI = new UnwindInst();
3297 $$.S.makeSignless();
3300 $$.TI = new UnreachableInst();
3301 $$.S.makeSignless();
3306 : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
3309 Constant *V = cast<Constant>(getExistingValue($2.T, $3));
3312 error("May only switch on a constant pool value");
3314 $6.S.makeSignless();
3315 BasicBlock* tmpBB = getBBVal($6);
3316 $$->push_back(std::make_pair(V, tmpBB));
3318 | IntType ConstValueRef ',' LABEL ValueRef {
3319 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
3321 Constant *V = cast<Constant>(getExistingValue($1.T, $2));
3324 error("May only switch on a constant pool value");
3326 $5.S.makeSignless();
3327 BasicBlock* tmpBB = getBBVal($5);
3328 $$->push_back(std::make_pair(V, tmpBB));
3333 : OptAssign InstVal {
3336 if (BitCastInst *BCI = dyn_cast<BitCastInst>($2.I))
3337 if (BCI->getSrcTy() == BCI->getDestTy() &&
3338 BCI->getOperand(0)->getName() == $1)
3339 // This is a useless bit cast causing a name redefinition. It is
3340 // a bit cast from a type to the same type of an operand with the
3341 // same name as the name we would give this instruction. Since this
3342 // instruction results in no code generation, it is safe to omit
3343 // the instruction. This situation can occur because of collapsed
3344 // type planes. For example:
3345 // %X = add int %Y, %Z
3346 // %X = cast int %Y to uint
3347 // After upgrade, this looks like:
3348 // %X = add i32 %Y, %Z
3349 // %X = bitcast i32 to i32
3350 // The bitcast is clearly useless so we omit it.
3354 $$.S.makeSignless();
3356 ValueInfo VI; VI.V = $2.I; VI.S.copy($2.S);
3357 setValueName(VI, $1);
3363 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
3364 $$.P = new std::list<std::pair<Value*, BasicBlock*> >();
3367 Value* tmpVal = getVal($1.PAT->get(), $3);
3368 $5.S.makeSignless();
3369 BasicBlock* tmpBB = getBBVal($5);
3370 $$.P->push_back(std::make_pair(tmpVal, tmpBB));
3373 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
3376 Value* tmpVal = getVal($1.P->front().first->getType(), $4);
3377 $6.S.makeSignless();
3378 BasicBlock* tmpBB = getBBVal($6);
3379 $1.P->push_back(std::make_pair(tmpVal, tmpBB));
3383 ValueRefList : ResolvedVal { // Used for call statements, and memory insts...
3384 $$ = new std::vector<ValueInfo>();
3387 | ValueRefList ',' ResolvedVal {
3392 // ValueRefListE - Just like ValueRefList, except that it may also be empty!
3395 | /*empty*/ { $$ = 0; }
3408 : ArithmeticOps Types ValueRef ',' ValueRef {
3411 const Type* Ty = $2.PAT->get();
3412 if (!Ty->isInteger() && !Ty->isFloatingPoint() && !isa<VectorType>(Ty))
3413 error("Arithmetic operator requires integer, FP, or packed operands");
3414 if (isa<VectorType>(Ty) &&
3415 ($1 == URemOp || $1 == SRemOp || $1 == FRemOp || $1 == RemOp))
3416 error("Remainder not supported on vector types");
3417 // Upgrade the opcode from obsolete versions before we do anything with it.
3418 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $2.S);
3419 Value* val1 = getVal(Ty, $3);
3420 Value* val2 = getVal(Ty, $5);
3421 $$.I = BinaryOperator::create(Opcode, val1, val2);
3423 error("binary operator returned null");
3427 | LogicalOps Types ValueRef ',' ValueRef {
3430 const Type *Ty = $2.PAT->get();
3431 if (!Ty->isInteger()) {
3432 if (!isa<VectorType>(Ty) ||
3433 !cast<VectorType>(Ty)->getElementType()->isInteger())
3434 error("Logical operator requires integral operands");
3436 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $2.S);
3437 Value* tmpVal1 = getVal(Ty, $3);
3438 Value* tmpVal2 = getVal(Ty, $5);
3439 $$.I = BinaryOperator::create(Opcode, tmpVal1, tmpVal2);
3441 error("binary operator returned null");
3445 | SetCondOps Types ValueRef ',' ValueRef {
3448 const Type* Ty = $2.PAT->get();
3449 if(isa<VectorType>(Ty))
3450 error("VectorTypes currently not supported in setcc instructions");
3451 unsigned short pred;
3452 Instruction::OtherOps Opcode = getCompareOp($1, pred, Ty, $2.S);
3453 Value* tmpVal1 = getVal(Ty, $3);
3454 Value* tmpVal2 = getVal(Ty, $5);
3455 $$.I = CmpInst::create(Opcode, pred, tmpVal1, tmpVal2);
3457 error("binary operator returned null");
3458 $$.S.makeUnsigned();
3461 | ICMP IPredicates Types ValueRef ',' ValueRef {
3464 const Type *Ty = $3.PAT->get();
3465 if (isa<VectorType>(Ty))
3466 error("VectorTypes currently not supported in icmp instructions");
3467 else if (!Ty->isInteger() && !isa<PointerType>(Ty))
3468 error("icmp requires integer or pointer typed operands");
3469 Value* tmpVal1 = getVal(Ty, $4);
3470 Value* tmpVal2 = getVal(Ty, $6);
3471 $$.I = new ICmpInst($2, tmpVal1, tmpVal2);
3472 $$.S.makeUnsigned();
3475 | FCMP FPredicates Types ValueRef ',' ValueRef {
3478 const Type *Ty = $3.PAT->get();
3479 if (isa<VectorType>(Ty))
3480 error("VectorTypes currently not supported in fcmp instructions");
3481 else if (!Ty->isFloatingPoint())
3482 error("fcmp instruction requires floating point operands");
3483 Value* tmpVal1 = getVal(Ty, $4);
3484 Value* tmpVal2 = getVal(Ty, $6);
3485 $$.I = new FCmpInst($2, tmpVal1, tmpVal2);
3486 $$.S.makeUnsigned();
3490 warning("Use of obsolete 'not' instruction: Replacing with 'xor");
3491 const Type *Ty = $2.V->getType();
3492 Value *Ones = ConstantInt::getAllOnesValue(Ty);
3494 error("Expected integral type for not instruction");
3495 $$.I = BinaryOperator::create(Instruction::Xor, $2.V, Ones);
3497 error("Could not create a xor instruction");
3500 | ShiftOps ResolvedVal ',' ResolvedVal {
3501 if (!$4.V->getType()->isInteger() ||
3502 cast<IntegerType>($4.V->getType())->getBitWidth() != 8)
3503 error("Shift amount must be int8");
3504 const Type* Ty = $2.V->getType();
3505 if (!Ty->isInteger())
3506 error("Shift constant expression requires integer operand");
3507 Value* ShiftAmt = 0;
3508 if (cast<IntegerType>(Ty)->getBitWidth() > Type::Int8Ty->getBitWidth())
3509 if (Constant *C = dyn_cast<Constant>($4.V))
3510 ShiftAmt = ConstantExpr::getZExt(C, Ty);
3512 ShiftAmt = new ZExtInst($4.V, Ty, makeNameUnique("shift"), CurBB);
3515 $$.I = BinaryOperator::create(getBinaryOp($1, Ty, $2.S), $2.V, ShiftAmt);
3518 | CastOps ResolvedVal TO Types {
3519 const Type *DstTy = $4.PAT->get();
3520 if (!DstTy->isFirstClassType())
3521 error("cast instruction to a non-primitive type: '" +
3522 DstTy->getDescription() + "'");
3523 $$.I = cast<Instruction>(getCast($1, $2.V, $2.S, DstTy, $4.S, true));
3527 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3528 if (!$2.V->getType()->isInteger() ||
3529 cast<IntegerType>($2.V->getType())->getBitWidth() != 1)
3530 error("select condition must be bool");
3531 if ($4.V->getType() != $6.V->getType())
3532 error("select value types should match");
3533 $$.I = new SelectInst($2.V, $4.V, $6.V);
3536 | VAARG ResolvedVal ',' Types {
3537 const Type *Ty = $4.PAT->get();
3539 $$.I = new VAArgInst($2.V, Ty);
3543 | VAARG_old ResolvedVal ',' Types {
3544 const Type* ArgTy = $2.V->getType();
3545 const Type* DstTy = $4.PAT->get();
3546 ObsoleteVarArgs = true;
3547 Function* NF = cast<Function>(CurModule.CurrentModule->
3548 getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0));
3551 //foo = alloca 1 of t
3555 AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
3556 CurBB->getInstList().push_back(foo);
3557 CallInst* bar = new CallInst(NF, $2.V);
3558 CurBB->getInstList().push_back(bar);
3559 CurBB->getInstList().push_back(new StoreInst(bar, foo));
3560 $$.I = new VAArgInst(foo, DstTy);
3564 | VANEXT_old ResolvedVal ',' Types {
3565 const Type* ArgTy = $2.V->getType();
3566 const Type* DstTy = $4.PAT->get();
3567 ObsoleteVarArgs = true;
3568 Function* NF = cast<Function>(CurModule.CurrentModule->
3569 getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0));
3571 //b = vanext a, t ->
3572 //foo = alloca 1 of t
3575 //tmp = vaarg foo, t
3577 AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
3578 CurBB->getInstList().push_back(foo);
3579 CallInst* bar = new CallInst(NF, $2.V);
3580 CurBB->getInstList().push_back(bar);
3581 CurBB->getInstList().push_back(new StoreInst(bar, foo));
3582 Instruction* tmp = new VAArgInst(foo, DstTy);
3583 CurBB->getInstList().push_back(tmp);
3584 $$.I = new LoadInst(foo);
3588 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
3589 if (!ExtractElementInst::isValidOperands($2.V, $4.V))
3590 error("Invalid extractelement operands");
3591 $$.I = new ExtractElementInst($2.V, $4.V);
3592 $$.S.copy($2.S.get(0));
3594 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3595 if (!InsertElementInst::isValidOperands($2.V, $4.V, $6.V))
3596 error("Invalid insertelement operands");
3597 $$.I = new InsertElementInst($2.V, $4.V, $6.V);
3600 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3601 if (!ShuffleVectorInst::isValidOperands($2.V, $4.V, $6.V))
3602 error("Invalid shufflevector operands");
3603 $$.I = new ShuffleVectorInst($2.V, $4.V, $6.V);
3607 const Type *Ty = $2.P->front().first->getType();
3608 if (!Ty->isFirstClassType())
3609 error("PHI node operands must be of first class type");
3610 PHINode *PHI = new PHINode(Ty);
3611 PHI->reserveOperandSpace($2.P->size());
3612 while ($2.P->begin() != $2.P->end()) {
3613 if ($2.P->front().first->getType() != Ty)
3614 error("All elements of a PHI node must be of the same type");
3615 PHI->addIncoming($2.P->front().first, $2.P->front().second);
3620 delete $2.P; // Free the list...
3622 | OptTailCall OptCallingConv TypesV ValueRef '(' ValueRefListE ')' {
3623 // Handle the short call syntax
3624 const PointerType *PFTy;
3625 const FunctionType *FTy;
3627 if (!(PFTy = dyn_cast<PointerType>($3.PAT->get())) ||
3628 !(FTy = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3629 // Pull out the types of all of the arguments...
3630 std::vector<const Type*> ParamTypes;
3631 FTySign.makeComposite($3.S);
3633 for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
3635 ParamTypes.push_back((*I).V->getType());
3640 FunctionType::ParamAttrsList ParamAttrs;
3641 if ($2 == OldCallingConv::CSRet) {
3642 ParamAttrs.push_back(FunctionType::NoAttributeSet);
3643 ParamAttrs.push_back(FunctionType::StructRetAttribute);
3645 bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
3646 if (isVarArg) ParamTypes.pop_back();
3648 const Type *RetTy = $3.PAT->get();
3649 if (!RetTy->isFirstClassType() && RetTy != Type::VoidTy)
3650 error("Functions cannot return aggregate types");
3652 FTy = FunctionType::get(RetTy, ParamTypes, isVarArg, ParamAttrs);
3653 PFTy = PointerType::get(FTy);
3657 $$.S.copy($3.S.get(0)); // 0th element of FuncTy signedness is result sign
3659 $4.S.makeComposite(FTySign);
3661 // First upgrade any intrinsic calls.
3662 std::vector<Value*> Args;
3664 for (unsigned i = 0, e = $6->size(); i < e; ++i)
3665 Args.push_back((*$6)[i].V);
3666 Instruction *Inst = upgradeIntrinsicCall(FTy, $4, Args);
3668 // If we got an upgraded intrinsic
3672 // Get the function we're calling
3673 Value *V = getVal(PFTy, $4);
3675 // Check the argument values match
3676 if (!$6) { // Has no arguments?
3677 // Make sure no arguments is a good thing!
3678 if (FTy->getNumParams() != 0)
3679 error("No arguments passed to a function that expects arguments");
3680 } else { // Has arguments?
3681 // Loop through FunctionType's arguments and ensure they are specified
3684 FunctionType::param_iterator I = FTy->param_begin();
3685 FunctionType::param_iterator E = FTy->param_end();
3686 std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
3688 for (; ArgI != ArgE && I != E; ++ArgI, ++I)
3689 if ((*ArgI).V->getType() != *I)
3690 error("Parameter " +(*ArgI).V->getName()+ " is not of type '" +
3691 (*I)->getDescription() + "'");
3693 if (I != E || (ArgI != ArgE && !FTy->isVarArg()))
3694 error("Invalid number of parameters detected");
3697 // Create the call instruction
3698 CallInst *CI = new CallInst(V, &Args[0], Args.size());
3699 CI->setTailCall($1);
3700 CI->setCallingConv(upgradeCallingConv($2));
3712 // IndexList - List of indices for GEP based instructions...
3714 : ',' ValueRefList { $$ = $2; }
3715 | /* empty */ { $$ = new std::vector<ValueInfo>(); }
3719 : VOLATILE { $$ = true; }
3720 | /* empty */ { $$ = false; }
3724 : MALLOC Types OptCAlign {
3725 const Type *Ty = $2.PAT->get();
3726 $$.S.makeComposite($2.S);
3727 $$.I = new MallocInst(Ty, 0, $3);
3730 | MALLOC Types ',' UINT ValueRef OptCAlign {
3731 const Type *Ty = $2.PAT->get();
3732 $5.S.makeUnsigned();
3733 $$.S.makeComposite($2.S);
3734 $$.I = new MallocInst(Ty, getVal($4.T, $5), $6);
3737 | ALLOCA Types OptCAlign {
3738 const Type *Ty = $2.PAT->get();
3739 $$.S.makeComposite($2.S);
3740 $$.I = new AllocaInst(Ty, 0, $3);
3743 | ALLOCA Types ',' UINT ValueRef OptCAlign {
3744 const Type *Ty = $2.PAT->get();
3745 $5.S.makeUnsigned();
3746 $$.S.makeComposite($4.S);
3747 $$.I = new AllocaInst(Ty, getVal($4.T, $5), $6);
3750 | FREE ResolvedVal {
3751 const Type *PTy = $2.V->getType();
3752 if (!isa<PointerType>(PTy))
3753 error("Trying to free nonpointer type '" + PTy->getDescription() + "'");
3754 $$.I = new FreeInst($2.V);
3755 $$.S.makeSignless();
3757 | OptVolatile LOAD Types ValueRef {
3758 const Type* Ty = $3.PAT->get();
3760 if (!isa<PointerType>(Ty))
3761 error("Can't load from nonpointer type: " + Ty->getDescription());
3762 if (!cast<PointerType>(Ty)->getElementType()->isFirstClassType())
3763 error("Can't load from pointer of non-first-class type: " +
3764 Ty->getDescription());
3765 Value* tmpVal = getVal(Ty, $4);
3766 $$.I = new LoadInst(tmpVal, "", $1);
3767 $$.S.copy($3.S.get(0));
3770 | OptVolatile STORE ResolvedVal ',' Types ValueRef {
3772 const PointerType *PTy = dyn_cast<PointerType>($5.PAT->get());
3774 error("Can't store to a nonpointer type: " +
3775 $5.PAT->get()->getDescription());
3776 const Type *ElTy = PTy->getElementType();
3777 Value *StoreVal = $3.V;
3778 Value* tmpVal = getVal(PTy, $6);
3779 if (ElTy != $3.V->getType()) {
3780 StoreVal = handleSRetFuncTypeMerge($3.V, ElTy);
3782 error("Can't store '" + $3.V->getType()->getDescription() +
3783 "' into space of type '" + ElTy->getDescription() + "'");
3785 PTy = PointerType::get(StoreVal->getType());
3786 if (Constant *C = dyn_cast<Constant>(tmpVal))
3787 tmpVal = ConstantExpr::getBitCast(C, PTy);
3789 tmpVal = new BitCastInst(tmpVal, PTy, "upgrd.cast", CurBB);
3792 $$.I = new StoreInst(StoreVal, tmpVal, $1);
3793 $$.S.makeSignless();
3796 | GETELEMENTPTR Types ValueRef IndexList {
3798 const Type* Ty = $2.PAT->get();
3799 if (!isa<PointerType>(Ty))
3800 error("getelementptr insn requires pointer operand");
3802 std::vector<Value*> VIndices;
3803 upgradeGEPIndices(Ty, $4, VIndices);
3805 Value* tmpVal = getVal(Ty, $3);
3806 $$.I = new GetElementPtrInst(tmpVal, &VIndices[0], VIndices.size());
3807 ValueInfo VI; VI.V = tmpVal; VI.S.copy($2.S);
3808 $$.S.copy(getElementSign(VI, VIndices));
3816 int yyerror(const char *ErrorMsg) {
3818 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3819 + ":" + llvm::utostr((unsigned) Upgradelineno) + ": ";
3820 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3821 if (yychar != YYEMPTY && yychar != 0)
3822 errMsg += " while reading token '" + std::string(Upgradetext, Upgradeleng) +
3824 std::cerr << "llvm-upgrade: " << errMsg << '\n';
3825 std::cout << "llvm-upgrade: parse failed.\n";
3829 void warning(const std::string& ErrorMsg) {
3831 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3832 + ":" + llvm::utostr((unsigned) Upgradelineno) + ": ";
3833 std::string errMsg = where + "warning: " + std::string(ErrorMsg);
3834 if (yychar != YYEMPTY && yychar != 0)
3835 errMsg += " while reading token '" + std::string(Upgradetext, Upgradeleng) +
3837 std::cerr << "llvm-upgrade: " << errMsg << '\n';
3840 void error(const std::string& ErrorMsg, int LineNo) {
3841 if (LineNo == -1) LineNo = Upgradelineno;
3842 Upgradelineno = LineNo;
3843 yyerror(ErrorMsg.c_str());