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/ParameterAttributes.h"
21 #include "llvm/ValueSymbolTable.h"
22 #include "llvm/Support/GetElementPtrTypeIterator.h"
23 #include "llvm/ADT/STLExtras.h"
24 #include "llvm/Support/MathExtras.h"
31 // DEBUG_UPREFS - Define this symbol if you want to enable debugging output
32 // relating to upreferences in the input stream.
34 //#define DEBUG_UPREFS 1
36 #define UR_OUT(X) std::cerr << X
41 #define YYERROR_VERBOSE 1
42 #define YYINCLUDED_STDLIB_H
48 int yyerror(const char*);
49 static void warning(const std::string& WarningMsg);
53 std::istream* LexInput;
54 static std::string CurFilename;
56 // This bool controls whether attributes are ever added to function declarations
57 // definitions and calls.
58 static bool AddAttributes = false;
60 static Module *ParserResult;
61 static bool ObsoleteVarArgs;
62 static bool NewVarArgs;
63 static BasicBlock *CurBB;
64 static GlobalVariable *CurGV;
66 // This contains info used when building the body of a function. It is
67 // destroyed when the function is completed.
69 typedef std::vector<Value *> ValueList; // Numbered defs
71 typedef std::pair<std::string,TypeInfo> RenameMapKey;
72 typedef std::map<RenameMapKey,std::string> RenameMapType;
75 ResolveDefinitions(std::map<const Type *,ValueList> &LateResolvers,
76 std::map<const Type *,ValueList> *FutureLateResolvers = 0);
78 static struct PerModuleInfo {
79 Module *CurrentModule;
80 std::map<const Type *, ValueList> Values; // Module level numbered definitions
81 std::map<const Type *,ValueList> LateResolveValues;
82 std::vector<PATypeHolder> Types;
83 std::vector<Signedness> TypeSigns;
84 std::map<std::string,Signedness> NamedTypeSigns;
85 std::map<std::string,Signedness> NamedValueSigns;
86 std::map<ValID, PATypeHolder> LateResolveTypes;
87 static Module::Endianness Endian;
88 static Module::PointerSize PointerSize;
89 RenameMapType RenameMap;
91 /// PlaceHolderInfo - When temporary placeholder objects are created, remember
92 /// how they were referenced and on which line of the input they came from so
93 /// that we can resolve them later and print error messages as appropriate.
94 std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
96 // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
97 // references to global values. Global values may be referenced before they
98 // are defined, and if so, the temporary object that they represent is held
99 // here. This is used for forward references of GlobalValues.
101 typedef std::map<std::pair<const PointerType *, ValID>, GlobalValue*>
103 GlobalRefsType GlobalRefs;
106 // If we could not resolve some functions at function compilation time
107 // (calls to functions before they are defined), resolve them now... Types
108 // are resolved when the constant pool has been completely parsed.
110 ResolveDefinitions(LateResolveValues);
112 // Check to make sure that all global value forward references have been
115 if (!GlobalRefs.empty()) {
116 std::string UndefinedReferences = "Unresolved global references exist:\n";
118 for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
120 UndefinedReferences += " " + I->first.first->getDescription() + " " +
121 I->first.second.getName() + "\n";
123 error(UndefinedReferences);
127 if (CurrentModule->getDataLayout().empty()) {
128 std::string dataLayout;
129 if (Endian != Module::AnyEndianness)
130 dataLayout.append(Endian == Module::BigEndian ? "E" : "e");
131 if (PointerSize != Module::AnyPointerSize) {
132 if (!dataLayout.empty())
134 dataLayout.append(PointerSize == Module::Pointer64 ?
135 "p:64:64" : "p:32:32");
137 CurrentModule->setDataLayout(dataLayout);
140 Values.clear(); // Clear out function local definitions
143 NamedTypeSigns.clear();
144 NamedValueSigns.clear();
148 // GetForwardRefForGlobal - Check to see if there is a forward reference
149 // for this global. If so, remove it from the GlobalRefs map and return it.
150 // If not, just return null.
151 GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
152 // Check to see if there is a forward reference to this global variable...
153 // if there is, eliminate it and patch the reference to use the new def'n.
154 GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
155 GlobalValue *Ret = 0;
156 if (I != GlobalRefs.end()) {
162 void setEndianness(Module::Endianness E) { Endian = E; }
163 void setPointerSize(Module::PointerSize sz) { PointerSize = sz; }
166 Module::Endianness PerModuleInfo::Endian = Module::AnyEndianness;
167 Module::PointerSize PerModuleInfo::PointerSize = Module::AnyPointerSize;
169 static struct PerFunctionInfo {
170 Function *CurrentFunction; // Pointer to current function being created
172 std::map<const Type*, ValueList> Values; // Keep track of #'d definitions
173 std::map<const Type*, ValueList> LateResolveValues;
174 bool isDeclare; // Is this function a forward declararation?
175 GlobalValue::LinkageTypes Linkage;// Linkage for forward declaration.
177 /// BBForwardRefs - When we see forward references to basic blocks, keep
178 /// track of them here.
179 std::map<BasicBlock*, std::pair<ValID, int> > BBForwardRefs;
180 std::vector<BasicBlock*> NumberedBlocks;
181 RenameMapType RenameMap;
184 inline PerFunctionInfo() {
187 Linkage = GlobalValue::ExternalLinkage;
190 inline void FunctionStart(Function *M) {
195 void FunctionDone() {
196 NumberedBlocks.clear();
198 // Any forward referenced blocks left?
199 if (!BBForwardRefs.empty()) {
200 error("Undefined reference to label " +
201 BBForwardRefs.begin()->first->getName());
205 // Resolve all forward references now.
206 ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
208 Values.clear(); // Clear out function local definitions
212 Linkage = GlobalValue::ExternalLinkage;
214 } CurFun; // Info for the current function...
216 static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
218 /// This function is just a utility to make a Key value for the rename map.
219 /// The Key is a combination of the name, type, Signedness of the original
220 /// value (global/function). This just constructs the key and ensures that
221 /// named Signedness values are resolved to the actual Signedness.
222 /// @brief Make a key for the RenameMaps
223 static RenameMapKey makeRenameMapKey(const std::string &Name, const Type* Ty,
224 const Signedness &Sign) {
228 // Don't allow Named Signedness nodes because they won't match. The actual
229 // Signedness must be looked up in the NamedTypeSigns map.
230 TI.S.copy(CurModule.NamedTypeSigns[Sign.getName()]);
233 return std::make_pair(Name, TI);
237 //===----------------------------------------------------------------------===//
238 // Code to handle definitions of all the types
239 //===----------------------------------------------------------------------===//
241 static int InsertValue(Value *V,
242 std::map<const Type*,ValueList> &ValueTab = CurFun.Values) {
243 if (V->hasName()) return -1; // Is this a numbered definition?
245 // Yes, insert the value into the value table...
246 ValueList &List = ValueTab[V->getType()];
248 return List.size()-1;
251 static const Type *getType(const ValID &D, bool DoNotImprovise = false) {
253 case ValID::NumberVal: // Is it a numbered definition?
254 // Module constants occupy the lowest numbered slots...
255 if ((unsigned)D.Num < CurModule.Types.size()) {
256 return CurModule.Types[(unsigned)D.Num];
259 case ValID::NameVal: // Is it a named definition?
260 if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
265 error("Internal parser error: Invalid symbol type reference");
269 // If we reached here, we referenced either a symbol that we don't know about
270 // or an id number that hasn't been read yet. We may be referencing something
271 // forward, so just create an entry to be resolved later and get to it...
273 if (DoNotImprovise) return 0; // Do we just want a null to be returned?
275 if (inFunctionScope()) {
276 if (D.Type == ValID::NameVal) {
277 error("Reference to an undefined type: '" + D.getName() + "'");
280 error("Reference to an undefined type: #" + itostr(D.Num));
285 std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
286 if (I != CurModule.LateResolveTypes.end())
289 Type *Typ = OpaqueType::get();
290 CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
294 /// This is like the getType method except that instead of looking up the type
295 /// for a given ID, it looks up that type's sign.
296 /// @brief Get the signedness of a referenced type
297 static Signedness getTypeSign(const ValID &D) {
299 case ValID::NumberVal: // Is it a numbered definition?
300 // Module constants occupy the lowest numbered slots...
301 if ((unsigned)D.Num < CurModule.TypeSigns.size()) {
302 return CurModule.TypeSigns[(unsigned)D.Num];
305 case ValID::NameVal: { // Is it a named definition?
306 std::map<std::string,Signedness>::const_iterator I =
307 CurModule.NamedTypeSigns.find(D.Name);
308 if (I != CurModule.NamedTypeSigns.end())
310 // Perhaps its a named forward .. just cache the name
318 // If we don't find it, its signless
324 /// This function is analagous to getElementType in LLVM. It provides the same
325 /// function except that it looks up the Signedness instead of the type. This is
326 /// used when processing GEP instructions that need to extract the type of an
327 /// indexed struct/array/ptr member.
328 /// @brief Look up an element's sign.
329 static Signedness getElementSign(const ValueInfo& VI,
330 const std::vector<Value*> &Indices) {
331 const Type *Ptr = VI.V->getType();
332 assert(isa<PointerType>(Ptr) && "Need pointer type");
336 while (const CompositeType *CT = dyn_cast<CompositeType>(Ptr)) {
337 if (CurIdx == Indices.size())
340 Value *Index = Indices[CurIdx++];
341 assert(!isa<PointerType>(CT) || CurIdx == 1 && "Invalid type");
342 Ptr = CT->getTypeAtIndex(Index);
343 if (const Type* Ty = Ptr->getForwardedType())
345 assert(S.isComposite() && "Bad Signedness type");
346 if (isa<StructType>(CT)) {
347 S = S.get(cast<ConstantInt>(Index)->getZExtValue());
352 S = CurModule.NamedTypeSigns[S.getName()];
355 Result.makeComposite(S);
359 /// This function just translates a ConstantInfo into a ValueInfo and calls
360 /// getElementSign(ValueInfo,...). Its just a convenience.
361 /// @brief ConstantInfo version of getElementSign.
362 static Signedness getElementSign(const ConstInfo& CI,
363 const std::vector<Constant*> &Indices) {
367 std::vector<Value*> Idx;
368 for (unsigned i = 0; i < Indices.size(); ++i)
369 Idx.push_back(Indices[i]);
370 Signedness result = getElementSign(VI, Idx);
375 /// This function determines if two function types differ only in their use of
376 /// the sret parameter attribute in the first argument. If they are identical
377 /// in all other respects, it returns true. Otherwise, it returns false.
378 static bool FuncTysDifferOnlyBySRet(const FunctionType *F1,
379 const FunctionType *F2) {
380 if (F1->getReturnType() != F2->getReturnType() ||
381 F1->getNumParams() != F2->getNumParams())
384 if (F1->getParamAttrs())
385 PAL1 = *F1->getParamAttrs();
387 if (F2->getParamAttrs())
388 PAL2 = *F2->getParamAttrs();
389 if (PAL1.getParamAttrs(0) != PAL2.getParamAttrs(0))
391 unsigned SRetMask = ~unsigned(ParamAttr::StructRet);
392 for (unsigned i = 0; i < F1->getNumParams(); ++i) {
393 if (F1->getParamType(i) != F2->getParamType(i) ||
394 unsigned(PAL1.getParamAttrs(i+1)) & SRetMask !=
395 unsigned(PAL2.getParamAttrs(i+1)) & SRetMask)
401 /// This function determines if the type of V and Ty differ only by the SRet
402 /// parameter attribute. This is a more generalized case of
403 /// FuncTysDIfferOnlyBySRet since it doesn't require FunctionType arguments.
404 static bool TypesDifferOnlyBySRet(Value *V, const Type* Ty) {
405 if (V->getType() == Ty)
407 const PointerType *PF1 = dyn_cast<PointerType>(Ty);
408 const PointerType *PF2 = dyn_cast<PointerType>(V->getType());
410 const FunctionType* FT1 = dyn_cast<FunctionType>(PF1->getElementType());
411 const FunctionType* FT2 = dyn_cast<FunctionType>(PF2->getElementType());
413 return FuncTysDifferOnlyBySRet(FT1, FT2);
418 // The upgrade of csretcc to sret param attribute may have caused a function
419 // to not be found because the param attribute changed the type of the called
420 // function. This helper function, used in getExistingValue, detects that
421 // situation and bitcasts the function to the correct type.
422 static Value* handleSRetFuncTypeMerge(Value *V, const Type* Ty) {
423 // Handle degenerate cases
426 if (V->getType() == Ty)
429 const PointerType *PF1 = dyn_cast<PointerType>(Ty);
430 const PointerType *PF2 = dyn_cast<PointerType>(V->getType());
432 const FunctionType *FT1 = dyn_cast<FunctionType>(PF1->getElementType());
433 const FunctionType *FT2 = dyn_cast<FunctionType>(PF2->getElementType());
434 if (FT1 && FT2 && FuncTysDifferOnlyBySRet(FT1, FT2)) {
435 const ParamAttrsList *PAL2 = FT2->getParamAttrs();
436 if (PAL2 && PAL2->paramHasAttr(1, ParamAttr::StructRet))
438 else if (Constant *C = dyn_cast<Constant>(V))
439 return ConstantExpr::getBitCast(C, PF1);
441 return new BitCastInst(V, PF1, "upgrd.cast", CurBB);
448 // getExistingValue - Look up the value specified by the provided type and
449 // the provided ValID. If the value exists and has already been defined, return
450 // it. Otherwise return null.
452 static Value *getExistingValue(const Type *Ty, const ValID &D) {
453 if (isa<FunctionType>(Ty)) {
454 error("Functions are not values and must be referenced as pointers");
458 case ValID::NumberVal: { // Is it a numbered definition?
459 unsigned Num = (unsigned)D.Num;
461 // Module constants occupy the lowest numbered slots...
462 std::map<const Type*,ValueList>::iterator VI = CurModule.Values.find(Ty);
463 if (VI != CurModule.Values.end()) {
464 if (Num < VI->second.size())
465 return VI->second[Num];
466 Num -= VI->second.size();
469 // Make sure that our type is within bounds
470 VI = CurFun.Values.find(Ty);
471 if (VI == CurFun.Values.end()) return 0;
473 // Check that the number is within bounds...
474 if (VI->second.size() <= Num) return 0;
476 return VI->second[Num];
479 case ValID::NameVal: { // Is it a named definition?
480 // Get the name out of the ID
481 RenameMapKey Key = makeRenameMapKey(D.Name, Ty, D.S);
483 if (inFunctionScope()) {
484 // See if the name was renamed
485 RenameMapType::const_iterator I = CurFun.RenameMap.find(Key);
486 std::string LookupName;
487 if (I != CurFun.RenameMap.end())
488 LookupName = I->second;
491 ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable();
492 V = SymTab.lookup(LookupName);
493 if (V && V->getType() != Ty)
494 V = handleSRetFuncTypeMerge(V, Ty);
495 assert((!V || TypesDifferOnlyBySRet(V, Ty)) && "Found wrong type");
498 RenameMapType::const_iterator I = CurModule.RenameMap.find(Key);
499 std::string LookupName;
500 if (I != CurModule.RenameMap.end())
501 LookupName = I->second;
504 V = CurModule.CurrentModule->getValueSymbolTable().lookup(LookupName);
505 if (V && V->getType() != Ty)
506 V = handleSRetFuncTypeMerge(V, Ty);
507 assert((!V || TypesDifferOnlyBySRet(V, Ty)) && "Found wrong type");
512 D.destroy(); // Free old strdup'd memory...
516 // Check to make sure that "Ty" is an integral type, and that our
517 // value will fit into the specified type...
518 case ValID::ConstSIntVal: // Is it a constant pool reference??
519 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
520 error("Signed integral constant '" + itostr(D.ConstPool64) +
521 "' is invalid for type '" + Ty->getDescription() + "'");
523 return ConstantInt::get(Ty, D.ConstPool64);
525 case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
526 if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
527 if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64))
528 error("Integral constant '" + utostr(D.UConstPool64) +
529 "' is invalid or out of range");
530 else // This is really a signed reference. Transmogrify.
531 return ConstantInt::get(Ty, D.ConstPool64);
533 return ConstantInt::get(Ty, D.UConstPool64);
535 case ValID::ConstFPVal: // Is it a floating point const pool reference?
536 if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP))
537 error("FP constant invalid for type");
538 return ConstantFP::get(Ty, D.ConstPoolFP);
540 case ValID::ConstNullVal: // Is it a null value?
541 if (!isa<PointerType>(Ty))
542 error("Cannot create a a non pointer null");
543 return ConstantPointerNull::get(cast<PointerType>(Ty));
545 case ValID::ConstUndefVal: // Is it an undef value?
546 return UndefValue::get(Ty);
548 case ValID::ConstZeroVal: // Is it a zero value?
549 return Constant::getNullValue(Ty);
551 case ValID::ConstantVal: // Fully resolved constant?
552 if (D.ConstantValue->getType() != Ty)
553 error("Constant expression type different from required type");
554 return D.ConstantValue;
556 case ValID::InlineAsmVal: { // Inline asm expression
557 const PointerType *PTy = dyn_cast<PointerType>(Ty);
558 const FunctionType *FTy =
559 PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
560 if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints))
561 error("Invalid type for asm constraint string");
562 InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
563 D.IAD->HasSideEffects);
564 D.destroy(); // Free InlineAsmDescriptor.
568 assert(0 && "Unhandled case");
572 assert(0 && "Unhandled case");
576 // getVal - This function is identical to getExistingValue, except that if a
577 // value is not already defined, it "improvises" by creating a placeholder var
578 // that looks and acts just like the requested variable. When the value is
579 // defined later, all uses of the placeholder variable are replaced with the
582 static Value *getVal(const Type *Ty, const ValID &ID) {
583 if (Ty == Type::LabelTy)
584 error("Cannot use a basic block here");
586 // See if the value has already been defined.
587 Value *V = getExistingValue(Ty, ID);
590 if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty))
591 error("Invalid use of a composite type");
593 // If we reached here, we referenced either a symbol that we don't know about
594 // or an id number that hasn't been read yet. We may be referencing something
595 // forward, so just create an entry to be resolved later and get to it...
596 V = new Argument(Ty);
598 // Remember where this forward reference came from. FIXME, shouldn't we try
599 // to recycle these things??
600 CurModule.PlaceHolderInfo.insert(
601 std::make_pair(V, std::make_pair(ID, Upgradelineno)));
603 if (inFunctionScope())
604 InsertValue(V, CurFun.LateResolveValues);
606 InsertValue(V, CurModule.LateResolveValues);
610 /// @brief This just makes any name given to it unique, up to MAX_UINT times.
611 static std::string makeNameUnique(const std::string& Name) {
612 static unsigned UniqueNameCounter = 1;
613 std::string Result(Name);
614 Result += ".upgrd." + llvm::utostr(UniqueNameCounter++);
618 /// getBBVal - This is used for two purposes:
619 /// * If isDefinition is true, a new basic block with the specified ID is being
621 /// * If isDefinition is true, this is a reference to a basic block, which may
622 /// or may not be a forward reference.
624 static BasicBlock *getBBVal(const ValID &ID, bool isDefinition = false) {
625 assert(inFunctionScope() && "Can't get basic block at global scope");
631 error("Illegal label reference " + ID.getName());
633 case ValID::NumberVal: // Is it a numbered definition?
634 if (unsigned(ID.Num) >= CurFun.NumberedBlocks.size())
635 CurFun.NumberedBlocks.resize(ID.Num+1);
636 BB = CurFun.NumberedBlocks[ID.Num];
638 case ValID::NameVal: // Is it a named definition?
640 if (Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name)) {
641 if (N->getType() != Type::LabelTy) {
642 // Register names didn't use to conflict with basic block names
643 // because of type planes. Now they all have to be unique. So, we just
644 // rename the register and treat this name as if no basic block
646 RenameMapKey Key = makeRenameMapKey(ID.Name, N->getType(), ID.S);
647 N->setName(makeNameUnique(N->getName()));
648 CurModule.RenameMap[Key] = N->getName();
651 BB = cast<BasicBlock>(N);
657 // See if the block has already been defined.
659 // If this is the definition of the block, make sure the existing value was
660 // just a forward reference. If it was a forward reference, there will be
661 // an entry for it in the PlaceHolderInfo map.
662 if (isDefinition && !CurFun.BBForwardRefs.erase(BB))
663 // The existing value was a definition, not a forward reference.
664 error("Redefinition of label " + ID.getName());
666 ID.destroy(); // Free strdup'd memory.
670 // Otherwise this block has not been seen before.
671 BB = new BasicBlock("", CurFun.CurrentFunction);
672 if (ID.Type == ValID::NameVal) {
673 BB->setName(ID.Name);
675 CurFun.NumberedBlocks[ID.Num] = BB;
678 // If this is not a definition, keep track of it so we can use it as a forward
681 // Remember where this forward reference came from.
682 CurFun.BBForwardRefs[BB] = std::make_pair(ID, Upgradelineno);
684 // The forward declaration could have been inserted anywhere in the
685 // function: insert it into the correct place now.
686 CurFun.CurrentFunction->getBasicBlockList().remove(BB);
687 CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
694 //===----------------------------------------------------------------------===//
695 // Code to handle forward references in instructions
696 //===----------------------------------------------------------------------===//
698 // This code handles the late binding needed with statements that reference
699 // values not defined yet... for example, a forward branch, or the PHI node for
702 // This keeps a table (CurFun.LateResolveValues) of all such forward references
703 // and back patchs after we are done.
706 // ResolveDefinitions - If we could not resolve some defs at parsing
707 // time (forward branches, phi functions for loops, etc...) resolve the
711 ResolveDefinitions(std::map<const Type*,ValueList> &LateResolvers,
712 std::map<const Type*,ValueList> *FutureLateResolvers) {
714 // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
715 for (std::map<const Type*,ValueList>::iterator LRI = LateResolvers.begin(),
716 E = LateResolvers.end(); LRI != E; ++LRI) {
717 const Type* Ty = LRI->first;
718 ValueList &List = LRI->second;
719 while (!List.empty()) {
720 Value *V = List.back();
723 std::map<Value*, std::pair<ValID, int> >::iterator PHI =
724 CurModule.PlaceHolderInfo.find(V);
725 assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error");
727 ValID &DID = PHI->second.first;
729 Value *TheRealValue = getExistingValue(Ty, DID);
731 V->replaceAllUsesWith(TheRealValue);
733 CurModule.PlaceHolderInfo.erase(PHI);
734 } else if (FutureLateResolvers) {
735 // Functions have their unresolved items forwarded to the module late
737 InsertValue(V, *FutureLateResolvers);
739 if (DID.Type == ValID::NameVal) {
740 error("Reference to an invalid definition: '" + DID.getName() +
741 "' of type '" + V->getType()->getDescription() + "'",
745 error("Reference to an invalid definition: #" +
746 itostr(DID.Num) + " of type '" +
747 V->getType()->getDescription() + "'", PHI->second.second);
754 LateResolvers.clear();
757 /// This function is used for type resolution and upref handling. When a type
758 /// becomes concrete, this function is called to adjust the signedness for the
760 static void ResolveTypeSign(const Type* oldTy, const Signedness &Sign) {
761 std::string TyName = CurModule.CurrentModule->getTypeName(oldTy);
763 CurModule.NamedTypeSigns[TyName] = Sign;
766 /// ResolveTypeTo - A brand new type was just declared. This means that (if
767 /// name is not null) things referencing Name can be resolved. Otherwise,
768 /// things refering to the number can be resolved. Do this now.
769 static void ResolveTypeTo(char *Name, const Type *ToTy, const Signedness& Sign){
772 D = ValID::create(Name);
774 D = ValID::create((int)CurModule.Types.size());
778 CurModule.NamedTypeSigns[Name] = Sign;
780 std::map<ValID, PATypeHolder>::iterator I =
781 CurModule.LateResolveTypes.find(D);
782 if (I != CurModule.LateResolveTypes.end()) {
783 const Type *OldTy = I->second.get();
784 ((DerivedType*)OldTy)->refineAbstractTypeTo(ToTy);
785 CurModule.LateResolveTypes.erase(I);
789 /// This is the implementation portion of TypeHasInteger. It traverses the
790 /// type given, avoiding recursive types, and returns true as soon as it finds
791 /// an integer type. If no integer type is found, it returns false.
792 static bool TypeHasIntegerI(const Type *Ty, std::vector<const Type*> Stack) {
793 // Handle some easy cases
794 if (Ty->isPrimitiveType() || (Ty->getTypeID() == Type::OpaqueTyID))
798 if (const SequentialType *STy = dyn_cast<SequentialType>(Ty))
799 return STy->getElementType()->isInteger();
801 // Avoid type structure recursion
802 for (std::vector<const Type*>::iterator I = Stack.begin(), E = Stack.end();
807 // Push us on the type stack
810 if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
811 if (TypeHasIntegerI(FTy->getReturnType(), Stack))
813 FunctionType::param_iterator I = FTy->param_begin();
814 FunctionType::param_iterator E = FTy->param_end();
816 if (TypeHasIntegerI(*I, Stack))
819 } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
820 StructType::element_iterator I = STy->element_begin();
821 StructType::element_iterator E = STy->element_end();
822 for (; I != E; ++I) {
823 if (TypeHasIntegerI(*I, Stack))
828 // There shouldn't be anything else, but its definitely not integer
829 assert(0 && "What type is this?");
833 /// This is the interface to TypeHasIntegerI. It just provides the type stack,
834 /// to avoid recursion, and then calls TypeHasIntegerI.
835 static inline bool TypeHasInteger(const Type *Ty) {
836 std::vector<const Type*> TyStack;
837 return TypeHasIntegerI(Ty, TyStack);
840 // setValueName - Set the specified value to the name given. The name may be
841 // null potentially, in which case this is a noop. The string passed in is
842 // assumed to be a malloc'd string buffer, and is free'd by this function.
844 static void setValueName(const ValueInfo &V, char *NameStr) {
846 std::string Name(NameStr); // Copy string
847 free(NameStr); // Free old string
849 if (V.V->getType() == Type::VoidTy) {
850 error("Can't assign name '" + Name + "' to value with void type");
854 assert(inFunctionScope() && "Must be in function scope");
856 // Search the function's symbol table for an existing value of this name
857 ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable();
858 Value* Existing = ST.lookup(Name);
860 // An existing value of the same name was found. This might have happened
861 // because of the integer type planes collapsing in LLVM 2.0.
862 if (Existing->getType() == V.V->getType() &&
863 !TypeHasInteger(Existing->getType())) {
864 // If the type does not contain any integers in them then this can't be
865 // a type plane collapsing issue. It truly is a redefinition and we
866 // should error out as the assembly is invalid.
867 error("Redefinition of value named '" + Name + "' of type '" +
868 V.V->getType()->getDescription() + "'");
871 // In LLVM 2.0 we don't allow names to be re-used for any values in a
872 // function, regardless of Type. Previously re-use of names was okay as
873 // long as they were distinct types. With type planes collapsing because
874 // of the signedness change and because of PR411, this can no longer be
875 // supported. We must search the entire symbol table for a conflicting
876 // name and make the name unique. No warning is needed as this can't
878 std::string NewName = makeNameUnique(Name);
879 // We're changing the name but it will probably be used by other
880 // instructions as operands later on. Consequently we have to retain
881 // a mapping of the renaming that we're doing.
882 RenameMapKey Key = makeRenameMapKey(Name, V.V->getType(), V.S);
883 CurFun.RenameMap[Key] = NewName;
892 /// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
893 /// this is a declaration, otherwise it is a definition.
894 static GlobalVariable *
895 ParseGlobalVariable(char *NameStr,GlobalValue::LinkageTypes Linkage,
896 bool isConstantGlobal, const Type *Ty,
897 Constant *Initializer,
898 const Signedness &Sign) {
899 if (isa<FunctionType>(Ty))
900 error("Cannot declare global vars of function type");
902 const PointerType *PTy = PointerType::get(Ty);
906 Name = NameStr; // Copy string
907 free(NameStr); // Free old string
910 // See if this global value was forward referenced. If so, recycle the
914 ID = ValID::create((char*)Name.c_str());
916 ID = ValID::create((int)CurModule.Values[PTy].size());
918 ID.S.makeComposite(Sign);
920 if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
921 // Move the global to the end of the list, from whereever it was
922 // previously inserted.
923 GlobalVariable *GV = cast<GlobalVariable>(FWGV);
924 CurModule.CurrentModule->getGlobalList().remove(GV);
925 CurModule.CurrentModule->getGlobalList().push_back(GV);
926 GV->setInitializer(Initializer);
927 GV->setLinkage(Linkage);
928 GV->setConstant(isConstantGlobal);
929 InsertValue(GV, CurModule.Values);
933 // If this global has a name, check to see if there is already a definition
934 // of this global in the module and emit warnings if there are conflicts.
936 // The global has a name. See if there's an existing one of the same name.
937 if (CurModule.CurrentModule->getNamedGlobal(Name)) {
938 // We found an existing global ov the same name. This isn't allowed
939 // in LLVM 2.0. Consequently, we must alter the name of the global so it
940 // can at least compile. This can happen because of type planes
941 // There is alread a global of the same name which means there is a
942 // conflict. Let's see what we can do about it.
943 std::string NewName(makeNameUnique(Name));
944 if (Linkage != GlobalValue::InternalLinkage) {
945 // The linkage of this gval is external so we can't reliably rename
946 // it because it could potentially create a linking problem.
947 // However, we can't leave the name conflict in the output either or
948 // it won't assemble with LLVM 2.0. So, all we can do is rename
949 // this one to something unique and emit a warning about the problem.
950 warning("Renaming global variable '" + Name + "' to '" + NewName +
951 "' may cause linkage errors");
954 // Put the renaming in the global rename map
955 RenameMapKey Key = makeRenameMapKey(Name, PointerType::get(Ty), ID.S);
956 CurModule.RenameMap[Key] = NewName;
963 // Otherwise there is no existing GV to use, create one now.
965 new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
966 CurModule.CurrentModule);
967 InsertValue(GV, CurModule.Values);
968 // Remember the sign of this global.
969 CurModule.NamedValueSigns[Name] = ID.S;
973 // setTypeName - Set the specified type to the name given. The name may be
974 // null potentially, in which case this is a noop. The string passed in is
975 // assumed to be a malloc'd string buffer, and is freed by this function.
977 // This function returns true if the type has already been defined, but is
978 // allowed to be redefined in the specified context. If the name is a new name
979 // for the type plane, it is inserted and false is returned.
980 static bool setTypeName(const PATypeInfo& TI, char *NameStr) {
981 assert(!inFunctionScope() && "Can't give types function-local names");
982 if (NameStr == 0) return false;
984 std::string Name(NameStr); // Copy string
985 free(NameStr); // Free old string
987 const Type* Ty = TI.PAT->get();
989 // We don't allow assigning names to void type
990 if (Ty == Type::VoidTy) {
991 error("Can't assign name '" + Name + "' to the void type");
995 // Set the type name, checking for conflicts as we do so.
996 bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, Ty);
998 // Save the sign information for later use
999 CurModule.NamedTypeSigns[Name] = TI.S;
1001 if (AlreadyExists) { // Inserting a name that is already defined???
1002 const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
1003 assert(Existing && "Conflict but no matching type?");
1005 // There is only one case where this is allowed: when we are refining an
1006 // opaque type. In this case, Existing will be an opaque type.
1007 if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
1008 // We ARE replacing an opaque type!
1009 const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(Ty);
1013 // Otherwise, this is an attempt to redefine a type. That's okay if
1014 // the redefinition is identical to the original. This will be so if
1015 // Existing and T point to the same Type object. In this one case we
1016 // allow the equivalent redefinition.
1017 if (Existing == Ty) return true; // Yes, it's equal.
1019 // Any other kind of (non-equivalent) redefinition is an error.
1020 error("Redefinition of type named '" + Name + "' in the '" +
1021 Ty->getDescription() + "' type plane");
1027 //===----------------------------------------------------------------------===//
1028 // Code for handling upreferences in type names...
1031 // TypeContains - Returns true if Ty directly contains E in it.
1033 static bool TypeContains(const Type *Ty, const Type *E) {
1034 return std::find(Ty->subtype_begin(), Ty->subtype_end(),
1035 E) != Ty->subtype_end();
1039 struct UpRefRecord {
1040 // NestingLevel - The number of nesting levels that need to be popped before
1041 // this type is resolved.
1042 unsigned NestingLevel;
1044 // LastContainedTy - This is the type at the current binding level for the
1045 // type. Every time we reduce the nesting level, this gets updated.
1046 const Type *LastContainedTy;
1048 // UpRefTy - This is the actual opaque type that the upreference is
1049 // represented with.
1050 OpaqueType *UpRefTy;
1052 UpRefRecord(unsigned NL, OpaqueType *URTy)
1053 : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) { }
1057 // UpRefs - A list of the outstanding upreferences that need to be resolved.
1058 static std::vector<UpRefRecord> UpRefs;
1060 /// HandleUpRefs - Every time we finish a new layer of types, this function is
1061 /// called. It loops through the UpRefs vector, which is a list of the
1062 /// currently active types. For each type, if the up reference is contained in
1063 /// the newly completed type, we decrement the level count. When the level
1064 /// count reaches zero, the upreferenced type is the type that is passed in:
1065 /// thus we can complete the cycle.
1067 static PATypeHolder HandleUpRefs(const Type *ty, const Signedness& Sign) {
1068 // If Ty isn't abstract, or if there are no up-references in it, then there is
1069 // nothing to resolve here.
1070 if (!ty->isAbstract() || UpRefs.empty()) return ty;
1072 PATypeHolder Ty(ty);
1073 UR_OUT("Type '" << Ty->getDescription() <<
1074 "' newly formed. Resolving upreferences.\n" <<
1075 UpRefs.size() << " upreferences active!\n");
1077 // If we find any resolvable upreferences (i.e., those whose NestingLevel goes
1078 // to zero), we resolve them all together before we resolve them to Ty. At
1079 // the end of the loop, if there is anything to resolve to Ty, it will be in
1081 OpaqueType *TypeToResolve = 0;
1084 for (; i != UpRefs.size(); ++i) {
1085 UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
1086 << UpRefs[i].UpRefTy->getDescription() << ") = "
1087 << (TypeContains(Ty, UpRefs[i].UpRefTy) ? "true" : "false") << "\n");
1088 if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
1089 // Decrement level of upreference
1090 unsigned Level = --UpRefs[i].NestingLevel;
1091 UpRefs[i].LastContainedTy = Ty;
1092 UR_OUT(" Uplevel Ref Level = " << Level << "\n");
1093 if (Level == 0) { // Upreference should be resolved!
1094 if (!TypeToResolve) {
1095 TypeToResolve = UpRefs[i].UpRefTy;
1097 UR_OUT(" * Resolving upreference for "
1098 << UpRefs[i].UpRefTy->getDescription() << "\n";
1099 std::string OldName = UpRefs[i].UpRefTy->getDescription());
1100 ResolveTypeSign(UpRefs[i].UpRefTy, Sign);
1101 UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
1102 UR_OUT(" * Type '" << OldName << "' refined upreference to: "
1103 << (const void*)Ty << ", " << Ty->getDescription() << "\n");
1105 UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
1106 --i; // Do not skip the next element...
1111 if (TypeToResolve) {
1112 UR_OUT(" * Resolving upreference for "
1113 << UpRefs[i].UpRefTy->getDescription() << "\n";
1114 std::string OldName = TypeToResolve->getDescription());
1115 ResolveTypeSign(TypeToResolve, Sign);
1116 TypeToResolve->refineAbstractTypeTo(Ty);
1122 bool Signedness::operator<(const Signedness &that) const {
1125 return *(this->name) < *(that.name);
1127 return CurModule.NamedTypeSigns[*name] < that;
1128 } else if (that.isNamed()) {
1129 return *this < CurModule.NamedTypeSigns[*that.name];
1132 if (isComposite() && that.isComposite()) {
1133 if (sv->size() == that.sv->size()) {
1134 SignVector::const_iterator thisI = sv->begin(), thisE = sv->end();
1135 SignVector::const_iterator thatI = that.sv->begin(),
1136 thatE = that.sv->end();
1137 for (; thisI != thisE; ++thisI, ++thatI) {
1138 if (*thisI < *thatI)
1140 else if (!(*thisI == *thatI))
1145 return sv->size() < that.sv->size();
1147 return kind < that.kind;
1150 bool Signedness::operator==(const Signedness &that) const {
1153 return *(this->name) == *(that.name);
1155 return CurModule.NamedTypeSigns[*(this->name)] == that;
1156 else if (that.isNamed())
1157 return *this == CurModule.NamedTypeSigns[*(that.name)];
1158 if (isComposite() && that.isComposite()) {
1159 if (sv->size() == that.sv->size()) {
1160 SignVector::const_iterator thisI = sv->begin(), thisE = sv->end();
1161 SignVector::const_iterator thatI = that.sv->begin(),
1162 thatE = that.sv->end();
1163 for (; thisI != thisE; ++thisI, ++thatI) {
1164 if (!(*thisI == *thatI))
1171 return kind == that.kind;
1174 void Signedness::copy(const Signedness &that) {
1175 if (that.isNamed()) {
1177 name = new std::string(*that.name);
1178 } else if (that.isComposite()) {
1180 sv = new SignVector();
1188 void Signedness::destroy() {
1191 } else if (isComposite()) {
1197 void Signedness::dump() const {
1198 if (isComposite()) {
1199 if (sv->size() == 1) {
1204 for (unsigned i = 0; i < sv->size(); ++i) {
1211 } else if (isNamed()) {
1213 } else if (isSigned()) {
1215 } else if (isUnsigned()) {
1222 static inline Instruction::TermOps
1223 getTermOp(TermOps op) {
1225 default : assert(0 && "Invalid OldTermOp");
1226 case RetOp : return Instruction::Ret;
1227 case BrOp : return Instruction::Br;
1228 case SwitchOp : return Instruction::Switch;
1229 case InvokeOp : return Instruction::Invoke;
1230 case UnwindOp : return Instruction::Unwind;
1231 case UnreachableOp: return Instruction::Unreachable;
1235 static inline Instruction::BinaryOps
1236 getBinaryOp(BinaryOps op, const Type *Ty, const Signedness& Sign) {
1238 default : assert(0 && "Invalid OldBinaryOps");
1244 case SetGT : assert(0 && "Should use getCompareOp");
1245 case AddOp : return Instruction::Add;
1246 case SubOp : return Instruction::Sub;
1247 case MulOp : return Instruction::Mul;
1249 // This is an obsolete instruction so we must upgrade it based on the
1250 // types of its operands.
1251 bool isFP = Ty->isFloatingPoint();
1252 if (const VectorType* PTy = dyn_cast<VectorType>(Ty))
1253 // If its a vector type we want to use the element type
1254 isFP = PTy->getElementType()->isFloatingPoint();
1256 return Instruction::FDiv;
1257 else if (Sign.isSigned())
1258 return Instruction::SDiv;
1259 return Instruction::UDiv;
1261 case UDivOp : return Instruction::UDiv;
1262 case SDivOp : return Instruction::SDiv;
1263 case FDivOp : return Instruction::FDiv;
1265 // This is an obsolete instruction so we must upgrade it based on the
1266 // types of its operands.
1267 bool isFP = Ty->isFloatingPoint();
1268 if (const VectorType* PTy = dyn_cast<VectorType>(Ty))
1269 // If its a vector type we want to use the element type
1270 isFP = PTy->getElementType()->isFloatingPoint();
1271 // Select correct opcode
1273 return Instruction::FRem;
1274 else if (Sign.isSigned())
1275 return Instruction::SRem;
1276 return Instruction::URem;
1278 case URemOp : return Instruction::URem;
1279 case SRemOp : return Instruction::SRem;
1280 case FRemOp : return Instruction::FRem;
1281 case LShrOp : return Instruction::LShr;
1282 case AShrOp : return Instruction::AShr;
1283 case ShlOp : return Instruction::Shl;
1285 if (Sign.isSigned())
1286 return Instruction::AShr;
1287 return Instruction::LShr;
1288 case AndOp : return Instruction::And;
1289 case OrOp : return Instruction::Or;
1290 case XorOp : return Instruction::Xor;
1294 static inline Instruction::OtherOps
1295 getCompareOp(BinaryOps op, unsigned short &predicate, const Type* &Ty,
1296 const Signedness &Sign) {
1297 bool isSigned = Sign.isSigned();
1298 bool isFP = Ty->isFloatingPoint();
1300 default : assert(0 && "Invalid OldSetCC");
1303 predicate = FCmpInst::FCMP_OEQ;
1304 return Instruction::FCmp;
1306 predicate = ICmpInst::ICMP_EQ;
1307 return Instruction::ICmp;
1311 predicate = FCmpInst::FCMP_UNE;
1312 return Instruction::FCmp;
1314 predicate = ICmpInst::ICMP_NE;
1315 return Instruction::ICmp;
1319 predicate = FCmpInst::FCMP_OLE;
1320 return Instruction::FCmp;
1323 predicate = ICmpInst::ICMP_SLE;
1325 predicate = ICmpInst::ICMP_ULE;
1326 return Instruction::ICmp;
1330 predicate = FCmpInst::FCMP_OGE;
1331 return Instruction::FCmp;
1334 predicate = ICmpInst::ICMP_SGE;
1336 predicate = ICmpInst::ICMP_UGE;
1337 return Instruction::ICmp;
1341 predicate = FCmpInst::FCMP_OLT;
1342 return Instruction::FCmp;
1345 predicate = ICmpInst::ICMP_SLT;
1347 predicate = ICmpInst::ICMP_ULT;
1348 return Instruction::ICmp;
1352 predicate = FCmpInst::FCMP_OGT;
1353 return Instruction::FCmp;
1356 predicate = ICmpInst::ICMP_SGT;
1358 predicate = ICmpInst::ICMP_UGT;
1359 return Instruction::ICmp;
1364 static inline Instruction::MemoryOps getMemoryOp(MemoryOps op) {
1366 default : assert(0 && "Invalid OldMemoryOps");
1367 case MallocOp : return Instruction::Malloc;
1368 case FreeOp : return Instruction::Free;
1369 case AllocaOp : return Instruction::Alloca;
1370 case LoadOp : return Instruction::Load;
1371 case StoreOp : return Instruction::Store;
1372 case GetElementPtrOp : return Instruction::GetElementPtr;
1376 static inline Instruction::OtherOps
1377 getOtherOp(OtherOps op, const Signedness &Sign) {
1379 default : assert(0 && "Invalid OldOtherOps");
1380 case PHIOp : return Instruction::PHI;
1381 case CallOp : return Instruction::Call;
1382 case SelectOp : return Instruction::Select;
1383 case UserOp1 : return Instruction::UserOp1;
1384 case UserOp2 : return Instruction::UserOp2;
1385 case VAArg : return Instruction::VAArg;
1386 case ExtractElementOp : return Instruction::ExtractElement;
1387 case InsertElementOp : return Instruction::InsertElement;
1388 case ShuffleVectorOp : return Instruction::ShuffleVector;
1389 case ICmpOp : return Instruction::ICmp;
1390 case FCmpOp : return Instruction::FCmp;
1394 static inline Value*
1395 getCast(CastOps op, Value *Src, const Signedness &SrcSign, const Type *DstTy,
1396 const Signedness &DstSign, bool ForceInstruction = false) {
1397 Instruction::CastOps Opcode;
1398 const Type* SrcTy = Src->getType();
1400 if (SrcTy->isFloatingPoint() && isa<PointerType>(DstTy)) {
1401 // fp -> ptr cast is no longer supported but we must upgrade this
1402 // by doing a double cast: fp -> int -> ptr
1403 SrcTy = Type::Int64Ty;
1404 Opcode = Instruction::IntToPtr;
1405 if (isa<Constant>(Src)) {
1406 Src = ConstantExpr::getCast(Instruction::FPToUI,
1407 cast<Constant>(Src), SrcTy);
1409 std::string NewName(makeNameUnique(Src->getName()));
1410 Src = new FPToUIInst(Src, SrcTy, NewName, CurBB);
1412 } else if (isa<IntegerType>(DstTy) &&
1413 cast<IntegerType>(DstTy)->getBitWidth() == 1) {
1414 // cast type %x to bool was previously defined as setne type %x, null
1415 // The cast semantic is now to truncate, not compare so we must retain
1416 // the original intent by replacing the cast with a setne
1417 Constant* Null = Constant::getNullValue(SrcTy);
1418 Instruction::OtherOps Opcode = Instruction::ICmp;
1419 unsigned short predicate = ICmpInst::ICMP_NE;
1420 if (SrcTy->isFloatingPoint()) {
1421 Opcode = Instruction::FCmp;
1422 predicate = FCmpInst::FCMP_ONE;
1423 } else if (!SrcTy->isInteger() && !isa<PointerType>(SrcTy)) {
1424 error("Invalid cast to bool");
1426 if (isa<Constant>(Src) && !ForceInstruction)
1427 return ConstantExpr::getCompare(predicate, cast<Constant>(Src), Null);
1429 return CmpInst::create(Opcode, predicate, Src, Null);
1431 // Determine the opcode to use by calling CastInst::getCastOpcode
1433 CastInst::getCastOpcode(Src, SrcSign.isSigned(), DstTy,
1434 DstSign.isSigned());
1436 } else switch (op) {
1437 default: assert(0 && "Invalid cast token");
1438 case TruncOp: Opcode = Instruction::Trunc; break;
1439 case ZExtOp: Opcode = Instruction::ZExt; break;
1440 case SExtOp: Opcode = Instruction::SExt; break;
1441 case FPTruncOp: Opcode = Instruction::FPTrunc; break;
1442 case FPExtOp: Opcode = Instruction::FPExt; break;
1443 case FPToUIOp: Opcode = Instruction::FPToUI; break;
1444 case FPToSIOp: Opcode = Instruction::FPToSI; break;
1445 case UIToFPOp: Opcode = Instruction::UIToFP; break;
1446 case SIToFPOp: Opcode = Instruction::SIToFP; break;
1447 case PtrToIntOp: Opcode = Instruction::PtrToInt; break;
1448 case IntToPtrOp: Opcode = Instruction::IntToPtr; break;
1449 case BitCastOp: Opcode = Instruction::BitCast; break;
1452 if (isa<Constant>(Src) && !ForceInstruction)
1453 return ConstantExpr::getCast(Opcode, cast<Constant>(Src), DstTy);
1454 return CastInst::create(Opcode, Src, DstTy);
1457 static Instruction *
1458 upgradeIntrinsicCall(const Type* RetTy, const ValID &ID,
1459 std::vector<Value*>& Args) {
1461 std::string Name = ID.Type == ValID::NameVal ? ID.Name : "";
1464 if (Name == "llvm.isunordered.f32" || Name == "llvm.isunordered.f64") {
1465 if (Args.size() != 2)
1466 error("Invalid prototype for " + Name);
1467 return new FCmpInst(FCmpInst::FCMP_UNO, Args[0], Args[1]);
1471 if (Name.length() == 14 && !memcmp(&Name[5], "bswap.i", 7)) {
1472 const Type* ArgTy = Args[0]->getType();
1473 Name += ".i" + utostr(cast<IntegerType>(ArgTy)->getBitWidth());
1474 Function *F = cast<Function>(
1475 CurModule.CurrentModule->getOrInsertFunction(Name, RetTy, ArgTy,
1477 return new CallInst(F, Args[0]);
1481 if ((Name.length() <= 14 && !memcmp(&Name[5], "ctpop.i", 7)) ||
1482 (Name.length() <= 13 && !memcmp(&Name[5], "ctlz.i", 6)) ||
1483 (Name.length() <= 13 && !memcmp(&Name[5], "cttz.i", 6))) {
1484 // These intrinsics changed their result type.
1485 const Type* ArgTy = Args[0]->getType();
1486 Function *OldF = CurModule.CurrentModule->getFunction(Name);
1488 OldF->setName("upgrd.rm." + Name);
1490 Function *NewF = cast<Function>(
1491 CurModule.CurrentModule->getOrInsertFunction(Name, Type::Int32Ty,
1494 Instruction *Call = new CallInst(NewF, Args[0], "", CurBB);
1495 return CastInst::createIntegerCast(Call, RetTy, false);
1500 const Type* PtrTy = PointerType::get(Type::Int8Ty);
1501 std::vector<const Type*> Params;
1502 if (Name == "llvm.va_start" || Name == "llvm.va_end") {
1503 if (Args.size() != 1)
1504 error("Invalid prototype for " + Name + " prototype");
1505 Params.push_back(PtrTy);
1506 const FunctionType *FTy =
1507 FunctionType::get(Type::VoidTy, Params, false);
1508 const PointerType *PFTy = PointerType::get(FTy);
1509 Value* Func = getVal(PFTy, ID);
1510 Args[0] = new BitCastInst(Args[0], PtrTy, makeNameUnique("va"), CurBB);
1511 return new CallInst(Func, &Args[0], Args.size());
1512 } else if (Name == "llvm.va_copy") {
1513 if (Args.size() != 2)
1514 error("Invalid prototype for " + Name + " prototype");
1515 Params.push_back(PtrTy);
1516 Params.push_back(PtrTy);
1517 const FunctionType *FTy =
1518 FunctionType::get(Type::VoidTy, Params, false);
1519 const PointerType *PFTy = PointerType::get(FTy);
1520 Value* Func = getVal(PFTy, ID);
1521 std::string InstName0(makeNameUnique("va0"));
1522 std::string InstName1(makeNameUnique("va1"));
1523 Args[0] = new BitCastInst(Args[0], PtrTy, InstName0, CurBB);
1524 Args[1] = new BitCastInst(Args[1], PtrTy, InstName1, CurBB);
1525 return new CallInst(Func, &Args[0], Args.size());
1532 const Type* upgradeGEPCEIndices(const Type* PTy,
1533 std::vector<ValueInfo> *Indices,
1534 std::vector<Constant*> &Result) {
1535 const Type *Ty = PTy;
1537 for (unsigned i = 0, e = Indices->size(); i != e ; ++i) {
1538 Constant *Index = cast<Constant>((*Indices)[i].V);
1540 if (ConstantInt *CI = dyn_cast<ConstantInt>(Index)) {
1541 // LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte
1542 // struct indices to i32 struct indices with ZExt for compatibility.
1543 if (CI->getBitWidth() < 32)
1544 Index = ConstantExpr::getCast(Instruction::ZExt, CI, Type::Int32Ty);
1547 if (isa<SequentialType>(Ty)) {
1548 // Make sure that unsigned SequentialType indices are zext'd to
1549 // 64-bits if they were smaller than that because LLVM 2.0 will sext
1550 // all indices for SequentialType elements. We must retain the same
1551 // semantic (zext) for unsigned types.
1552 if (const IntegerType *Ity = dyn_cast<IntegerType>(Index->getType())) {
1553 if (Ity->getBitWidth() < 64 && (*Indices)[i].S.isUnsigned()) {
1554 Index = ConstantExpr::getCast(Instruction::ZExt, Index,Type::Int64Ty);
1558 Result.push_back(Index);
1559 Ty = GetElementPtrInst::getIndexedType(PTy, (Value**)&Result[0],
1560 Result.size(),true);
1562 error("Index list invalid for constant getelementptr");
1567 const Type* upgradeGEPInstIndices(const Type* PTy,
1568 std::vector<ValueInfo> *Indices,
1569 std::vector<Value*> &Result) {
1570 const Type *Ty = PTy;
1572 for (unsigned i = 0, e = Indices->size(); i != e ; ++i) {
1573 Value *Index = (*Indices)[i].V;
1575 if (ConstantInt *CI = dyn_cast<ConstantInt>(Index)) {
1576 // LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte
1577 // struct indices to i32 struct indices with ZExt for compatibility.
1578 if (CI->getBitWidth() < 32)
1579 Index = ConstantExpr::getCast(Instruction::ZExt, CI, Type::Int32Ty);
1583 if (isa<StructType>(Ty)) { // Only change struct indices
1584 if (!isa<Constant>(Index)) {
1585 error("Invalid non-constant structure index");
1589 // Make sure that unsigned SequentialType indices are zext'd to
1590 // 64-bits if they were smaller than that because LLVM 2.0 will sext
1591 // all indices for SequentialType elements. We must retain the same
1592 // semantic (zext) for unsigned types.
1593 if (const IntegerType *Ity = dyn_cast<IntegerType>(Index->getType())) {
1594 if (Ity->getBitWidth() < 64 && (*Indices)[i].S.isUnsigned()) {
1595 if (isa<Constant>(Index))
1596 Index = ConstantExpr::getCast(Instruction::ZExt,
1597 cast<Constant>(Index), Type::Int64Ty);
1599 Index = CastInst::create(Instruction::ZExt, Index, Type::Int64Ty,
1600 makeNameUnique("gep"), CurBB);
1604 Result.push_back(Index);
1605 Ty = GetElementPtrInst::getIndexedType(PTy, &Result[0], Result.size(),true);
1607 error("Index list invalid for constant getelementptr");
1612 unsigned upgradeCallingConv(unsigned CC) {
1614 case OldCallingConv::C : return CallingConv::C;
1615 case OldCallingConv::CSRet : return CallingConv::C;
1616 case OldCallingConv::Fast : return CallingConv::Fast;
1617 case OldCallingConv::Cold : return CallingConv::Cold;
1618 case OldCallingConv::X86_StdCall : return CallingConv::X86_StdCall;
1619 case OldCallingConv::X86_FastCall: return CallingConv::X86_FastCall;
1625 Module* UpgradeAssembly(const std::string &infile, std::istream& in,
1626 bool debug, bool addAttrs)
1629 CurFilename = infile;
1632 AddAttributes = addAttrs;
1633 ObsoleteVarArgs = false;
1636 CurModule.CurrentModule = new Module(CurFilename);
1638 // Check to make sure the parser succeeded
1641 delete ParserResult;
1642 std::cerr << "llvm-upgrade: parse failed.\n";
1646 // Check to make sure that parsing produced a result
1647 if (!ParserResult) {
1648 std::cerr << "llvm-upgrade: no parse result.\n";
1652 // Reset ParserResult variable while saving its value for the result.
1653 Module *Result = ParserResult;
1656 //Not all functions use vaarg, so make a second check for ObsoleteVarArgs
1659 if ((F = Result->getFunction("llvm.va_start"))
1660 && F->getFunctionType()->getNumParams() == 0)
1661 ObsoleteVarArgs = true;
1662 if((F = Result->getFunction("llvm.va_copy"))
1663 && F->getFunctionType()->getNumParams() == 1)
1664 ObsoleteVarArgs = true;
1667 if (ObsoleteVarArgs && NewVarArgs) {
1668 error("This file is corrupt: it uses both new and old style varargs");
1672 if(ObsoleteVarArgs) {
1673 if(Function* F = Result->getFunction("llvm.va_start")) {
1674 if (F->arg_size() != 0) {
1675 error("Obsolete va_start takes 0 argument");
1681 //bar = alloca typeof(foo)
1685 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1686 const Type* ArgTy = F->getFunctionType()->getReturnType();
1687 const Type* ArgTyPtr = PointerType::get(ArgTy);
1688 Function* NF = cast<Function>(Result->getOrInsertFunction(
1689 "llvm.va_start", RetTy, ArgTyPtr, (Type *)0));
1691 while (!F->use_empty()) {
1692 CallInst* CI = cast<CallInst>(F->use_back());
1693 AllocaInst* bar = new AllocaInst(ArgTy, 0, "vastart.fix.1", CI);
1694 new CallInst(NF, bar, "", CI);
1695 Value* foo = new LoadInst(bar, "vastart.fix.2", CI);
1696 CI->replaceAllUsesWith(foo);
1697 CI->getParent()->getInstList().erase(CI);
1699 Result->getFunctionList().erase(F);
1702 if(Function* F = Result->getFunction("llvm.va_end")) {
1703 if(F->arg_size() != 1) {
1704 error("Obsolete va_end takes 1 argument");
1710 //bar = alloca 1 of typeof(foo)
1712 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1713 const Type* ArgTy = F->getFunctionType()->getParamType(0);
1714 const Type* ArgTyPtr = PointerType::get(ArgTy);
1715 Function* NF = cast<Function>(Result->getOrInsertFunction(
1716 "llvm.va_end", RetTy, ArgTyPtr, (Type *)0));
1718 while (!F->use_empty()) {
1719 CallInst* CI = cast<CallInst>(F->use_back());
1720 AllocaInst* bar = new AllocaInst(ArgTy, 0, "vaend.fix.1", CI);
1721 new StoreInst(CI->getOperand(1), bar, CI);
1722 new CallInst(NF, bar, "", CI);
1723 CI->getParent()->getInstList().erase(CI);
1725 Result->getFunctionList().erase(F);
1728 if(Function* F = Result->getFunction("llvm.va_copy")) {
1729 if(F->arg_size() != 1) {
1730 error("Obsolete va_copy takes 1 argument");
1735 //a = alloca 1 of typeof(foo)
1736 //b = alloca 1 of typeof(foo)
1741 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1742 const Type* ArgTy = F->getFunctionType()->getReturnType();
1743 const Type* ArgTyPtr = PointerType::get(ArgTy);
1744 Function* NF = cast<Function>(Result->getOrInsertFunction(
1745 "llvm.va_copy", RetTy, ArgTyPtr, ArgTyPtr, (Type *)0));
1747 while (!F->use_empty()) {
1748 CallInst* CI = cast<CallInst>(F->use_back());
1749 AllocaInst* a = new AllocaInst(ArgTy, 0, "vacopy.fix.1", CI);
1750 AllocaInst* b = new AllocaInst(ArgTy, 0, "vacopy.fix.2", CI);
1751 new StoreInst(CI->getOperand(1), b, CI);
1752 new CallInst(NF, a, b, "", CI);
1753 Value* foo = new LoadInst(a, "vacopy.fix.3", CI);
1754 CI->replaceAllUsesWith(foo);
1755 CI->getParent()->getInstList().erase(CI);
1757 Result->getFunctionList().erase(F);
1764 } // end llvm namespace
1766 using namespace llvm;
1771 llvm::Module *ModuleVal;
1772 llvm::Function *FunctionVal;
1773 std::pair<llvm::PATypeInfo, char*> *ArgVal;
1774 llvm::BasicBlock *BasicBlockVal;
1775 llvm::TermInstInfo TermInstVal;
1776 llvm::InstrInfo InstVal;
1777 llvm::ConstInfo ConstVal;
1778 llvm::ValueInfo ValueVal;
1779 llvm::PATypeInfo TypeVal;
1780 llvm::TypeInfo PrimType;
1781 llvm::PHIListInfo PHIList;
1782 std::list<llvm::PATypeInfo> *TypeList;
1783 std::vector<llvm::ValueInfo> *ValueList;
1784 std::vector<llvm::ConstInfo> *ConstVector;
1787 std::vector<std::pair<llvm::PATypeInfo,char*> > *ArgList;
1788 // Represent the RHS of PHI node
1789 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
1791 llvm::GlobalValue::LinkageTypes Linkage;
1799 char *StrVal; // This memory is strdup'd!
1800 llvm::ValID ValIDVal; // strdup'd memory maybe!
1802 llvm::BinaryOps BinaryOpVal;
1803 llvm::TermOps TermOpVal;
1804 llvm::MemoryOps MemOpVal;
1805 llvm::OtherOps OtherOpVal;
1806 llvm::CastOps CastOpVal;
1807 llvm::ICmpInst::Predicate IPred;
1808 llvm::FCmpInst::Predicate FPred;
1809 llvm::Module::Endianness Endianness;
1812 %type <ModuleVal> Module FunctionList
1813 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1814 %type <BasicBlockVal> BasicBlock InstructionList
1815 %type <TermInstVal> BBTerminatorInst
1816 %type <InstVal> Inst InstVal MemoryInst
1817 %type <ConstVal> ConstVal ConstExpr
1818 %type <ConstVector> ConstVector
1819 %type <ArgList> ArgList ArgListH
1820 %type <ArgVal> ArgVal
1821 %type <PHIList> PHIList
1822 %type <ValueList> ValueRefList ValueRefListE // For call param lists
1823 %type <ValueList> IndexList // For GEP derived indices
1824 %type <TypeList> TypeListI ArgTypeListI
1825 %type <JumpTable> JumpTable
1826 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1827 %type <BoolVal> OptVolatile // 'volatile' or not
1828 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1829 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1830 %type <Linkage> OptLinkage FnDeclareLinkage
1831 %type <Endianness> BigOrLittle
1833 // ValueRef - Unresolved reference to a definition or BB
1834 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1835 %type <ValueVal> ResolvedVal // <type> <valref> pair
1837 // Tokens and types for handling constant integer values
1839 // ESINT64VAL - A negative number within long long range
1840 %token <SInt64Val> ESINT64VAL
1842 // EUINT64VAL - A positive number within uns. long long range
1843 %token <UInt64Val> EUINT64VAL
1844 %type <SInt64Val> EINT64VAL
1846 %token <SIntVal> SINTVAL // Signed 32 bit ints...
1847 %token <UIntVal> UINTVAL // Unsigned 32 bit ints...
1848 %type <SIntVal> INTVAL
1849 %token <FPVal> FPVAL // Float or Double constant
1851 // Built in types...
1852 %type <TypeVal> Types TypesV UpRTypes UpRTypesV
1853 %type <PrimType> SIntType UIntType IntType FPType PrimType // Classifications
1854 %token <PrimType> VOID BOOL SBYTE UBYTE SHORT USHORT INT UINT LONG ULONG
1855 %token <PrimType> FLOAT DOUBLE TYPE LABEL
1857 %token <StrVal> VAR_ID LABELSTR STRINGCONSTANT
1858 %type <StrVal> Name OptName OptAssign
1859 %type <UIntVal> OptAlign OptCAlign
1860 %type <StrVal> OptSection SectionString
1862 %token IMPLEMENTATION ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1863 %token DECLARE GLOBAL CONSTANT SECTION VOLATILE
1864 %token TO DOTDOTDOT NULL_TOK UNDEF CONST INTERNAL LINKONCE WEAK APPENDING
1865 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1866 %token OPAQUE NOT EXTERNAL TARGET TRIPLE ENDIAN POINTERSIZE LITTLE BIG ALIGN
1867 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1868 %token CC_TOK CCC_TOK CSRETCC_TOK FASTCC_TOK COLDCC_TOK
1869 %token X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1871 %type <UIntVal> OptCallingConv
1873 // Basic Block Terminating Operators
1874 %token <TermOpVal> RET BR SWITCH INVOKE UNREACHABLE
1875 %token UNWIND EXCEPT
1878 %type <BinaryOpVal> ArithmeticOps LogicalOps SetCondOps // Binops Subcatagories
1879 %type <BinaryOpVal> ShiftOps
1880 %token <BinaryOpVal> ADD SUB MUL DIV UDIV SDIV FDIV REM UREM SREM FREM
1881 %token <BinaryOpVal> AND OR XOR SHL SHR ASHR LSHR
1882 %token <BinaryOpVal> SETLE SETGE SETLT SETGT SETEQ SETNE // Binary Comparators
1883 %token <OtherOpVal> ICMP FCMP
1885 // Memory Instructions
1886 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1889 %token <OtherOpVal> PHI_TOK SELECT VAARG
1890 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1891 %token VAARG_old VANEXT_old //OBSOLETE
1893 // Support for ICmp/FCmp Predicates, which is 1.9++ but not 2.0
1894 %type <IPred> IPredicates
1895 %type <FPred> FPredicates
1896 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1897 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1899 %token <CastOpVal> CAST TRUNC ZEXT SEXT FPTRUNC FPEXT FPTOUI FPTOSI
1900 %token <CastOpVal> UITOFP SITOFP PTRTOINT INTTOPTR BITCAST
1901 %type <CastOpVal> CastOps
1907 // Handle constant integer size restriction and conversion...
1912 if ($1 > (uint32_t)INT32_MAX) // Outside of my range!
1913 error("Value too large for type");
1919 : ESINT64VAL // These have same type and can't cause problems...
1921 if ($1 > (uint64_t)INT64_MAX) // Outside of my range!
1922 error("Value too large for type");
1926 // Operations that are notably excluded from this list include:
1927 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1930 : ADD | SUB | MUL | DIV | UDIV | SDIV | FDIV | REM | UREM | SREM | FREM
1938 : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE
1942 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1943 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1944 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1945 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1946 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1950 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1951 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1952 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1953 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1954 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1955 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1956 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1957 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1958 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1961 : SHL | SHR | ASHR | LSHR
1965 : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | FPTOUI | FPTOSI
1966 | UITOFP | SITOFP | PTRTOINT | INTTOPTR | BITCAST | CAST
1969 // These are some types that allow classification if we only want a particular
1970 // thing... for example, only a signed, unsigned, or integral type.
1972 : LONG | INT | SHORT | SBYTE
1976 : ULONG | UINT | USHORT | UBYTE
1980 : SIntType | UIntType
1987 // OptAssign - Value producing statements have an optional assignment component
1997 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1998 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1999 | WEAK { $$ = GlobalValue::WeakLinkage; }
2000 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
2001 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
2002 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
2003 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
2004 | /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
2008 : /*empty*/ { $$ = OldCallingConv::C; }
2009 | CCC_TOK { $$ = OldCallingConv::C; }
2010 | CSRETCC_TOK { $$ = OldCallingConv::CSRet; }
2011 | FASTCC_TOK { $$ = OldCallingConv::Fast; }
2012 | COLDCC_TOK { $$ = OldCallingConv::Cold; }
2013 | X86_STDCALLCC_TOK { $$ = OldCallingConv::X86_StdCall; }
2014 | X86_FASTCALLCC_TOK { $$ = OldCallingConv::X86_FastCall; }
2015 | CC_TOK EUINT64VAL {
2016 if ((unsigned)$2 != $2)
2017 error("Calling conv too large");
2022 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
2023 // a comma before it.
2025 : /*empty*/ { $$ = 0; }
2026 | ALIGN EUINT64VAL {
2028 if ($$ != 0 && !isPowerOf2_32($$))
2029 error("Alignment must be a power of two");
2034 : /*empty*/ { $$ = 0; }
2035 | ',' ALIGN EUINT64VAL {
2037 if ($$ != 0 && !isPowerOf2_32($$))
2038 error("Alignment must be a power of two");
2043 : SECTION STRINGCONSTANT {
2044 for (unsigned i = 0, e = strlen($2); i != e; ++i)
2045 if ($2[i] == '"' || $2[i] == '\\')
2046 error("Invalid character in section name");
2052 : /*empty*/ { $$ = 0; }
2053 | SectionString { $$ = $1; }
2056 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
2057 // is set to be the global we are processing.
2061 | ',' GlobalVarAttribute GlobalVarAttributes {}
2066 CurGV->setSection($1);
2069 | ALIGN EUINT64VAL {
2070 if ($2 != 0 && !isPowerOf2_32($2))
2071 error("Alignment must be a power of two");
2072 CurGV->setAlignment($2);
2077 //===----------------------------------------------------------------------===//
2078 // Types includes all predefined types... except void, because it can only be
2079 // used in specific contexts (function returning void for example). To have
2080 // access to it, a user must explicitly use TypesV.
2083 // TypesV includes all of 'Types', but it also includes the void type.
2087 $$.PAT = new PATypeHolder($1.T);
2088 $$.S.makeSignless();
2095 $$.PAT = new PATypeHolder($1.T);
2096 $$.S.makeSignless();
2102 if (!UpRefs.empty())
2103 error("Invalid upreference in type: " + (*$1.PAT)->getDescription());
2109 : BOOL | SBYTE | UBYTE | SHORT | USHORT | INT | UINT
2110 | LONG | ULONG | FLOAT | DOUBLE | LABEL
2113 // Derived types are added later...
2116 $$.PAT = new PATypeHolder($1.T);
2120 $$.PAT = new PATypeHolder(OpaqueType::get());
2121 $$.S.makeSignless();
2123 | SymbolicValueRef { // Named types are also simple types...
2124 $$.S.copy(getTypeSign($1));
2125 const Type* tmp = getType($1);
2126 $$.PAT = new PATypeHolder(tmp);
2128 | '\\' EUINT64VAL { // Type UpReference
2129 if ($2 > (uint64_t)~0U)
2130 error("Value out of range");
2131 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
2132 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
2133 $$.PAT = new PATypeHolder(OT);
2134 $$.S.makeSignless();
2135 UR_OUT("New Upreference!\n");
2137 | UpRTypesV '(' ArgTypeListI ')' { // Function derived type?
2138 $$.S.makeComposite($1.S);
2139 std::vector<const Type*> Params;
2140 for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
2141 E = $3->end(); I != E; ++I) {
2142 Params.push_back(I->PAT->get());
2145 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
2146 if (isVarArg) Params.pop_back();
2148 const FunctionType *FTy =
2149 FunctionType::get($1.PAT->get(), Params, isVarArg, 0);
2151 $$.PAT = new PATypeHolder( HandleUpRefs(FTy, $$.S) );
2152 delete $1.PAT; // Delete the return type handle
2153 delete $3; // Delete the argument list
2155 | '[' EUINT64VAL 'x' UpRTypes ']' { // Sized array type?
2156 $$.S.makeComposite($4.S);
2157 $$.PAT = new PATypeHolder(HandleUpRefs(ArrayType::get($4.PAT->get(),
2158 (unsigned)$2), $$.S));
2161 | '<' EUINT64VAL 'x' UpRTypes '>' { // Vector type?
2162 const llvm::Type* ElemTy = $4.PAT->get();
2163 if ((unsigned)$2 != $2)
2164 error("Unsigned result not equal to signed result");
2165 if (!(ElemTy->isInteger() || ElemTy->isFloatingPoint()))
2166 error("Elements of a VectorType must be integer or floating point");
2167 if (!isPowerOf2_32($2))
2168 error("VectorType length should be a power of 2");
2169 $$.S.makeComposite($4.S);
2170 $$.PAT = new PATypeHolder(HandleUpRefs(VectorType::get(ElemTy,
2171 (unsigned)$2), $$.S));
2174 | '{' TypeListI '}' { // Structure type?
2175 std::vector<const Type*> Elements;
2176 $$.S.makeComposite();
2177 for (std::list<llvm::PATypeInfo>::iterator I = $2->begin(),
2178 E = $2->end(); I != E; ++I) {
2179 Elements.push_back(I->PAT->get());
2182 $$.PAT = new PATypeHolder(HandleUpRefs(StructType::get(Elements), $$.S));
2185 | '{' '}' { // Empty structure type?
2186 $$.PAT = new PATypeHolder(StructType::get(std::vector<const Type*>()));
2187 $$.S.makeComposite();
2189 | '<' '{' TypeListI '}' '>' { // Packed Structure type?
2190 $$.S.makeComposite();
2191 std::vector<const Type*> Elements;
2192 for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
2193 E = $3->end(); I != E; ++I) {
2194 Elements.push_back(I->PAT->get());
2198 $$.PAT = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true),
2202 | '<' '{' '}' '>' { // Empty packed structure type?
2203 $$.PAT = new PATypeHolder(StructType::get(std::vector<const Type*>(),true));
2204 $$.S.makeComposite();
2206 | UpRTypes '*' { // Pointer type?
2207 if ($1.PAT->get() == Type::LabelTy)
2208 error("Cannot form a pointer to a basic block");
2209 $$.S.makeComposite($1.S);
2210 $$.PAT = new PATypeHolder(HandleUpRefs(PointerType::get($1.PAT->get()),
2216 // TypeList - Used for struct declarations and as a basis for function type
2217 // declaration type lists
2221 $$ = new std::list<PATypeInfo>();
2224 | TypeListI ',' UpRTypes {
2225 ($$=$1)->push_back($3);
2229 // ArgTypeList - List of types for a function type declaration...
2232 | TypeListI ',' DOTDOTDOT {
2234 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2235 VoidTI.S.makeSignless();
2236 ($$=$1)->push_back(VoidTI);
2239 $$ = new std::list<PATypeInfo>();
2241 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2242 VoidTI.S.makeSignless();
2243 $$->push_back(VoidTI);
2246 $$ = new std::list<PATypeInfo>();
2250 // ConstVal - The various declarations that go into the constant pool. This
2251 // production is used ONLY to represent constants that show up AFTER a 'const',
2252 // 'constant' or 'global' token at global scope. Constants that can be inlined
2253 // into other expressions (such as integers and constexprs) are handled by the
2254 // ResolvedVal, ValueRef and ConstValueRef productions.
2257 : Types '[' ConstVector ']' { // Nonempty unsized arr
2258 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2260 error("Cannot make array constant with type: '" +
2261 $1.PAT->get()->getDescription() + "'");
2262 const Type *ETy = ATy->getElementType();
2263 int NumElements = ATy->getNumElements();
2265 // Verify that we have the correct size...
2266 if (NumElements != -1 && NumElements != (int)$3->size())
2267 error("Type mismatch: constant sized array initialized with " +
2268 utostr($3->size()) + " arguments, but has size of " +
2269 itostr(NumElements) + "");
2271 // Verify all elements are correct type!
2272 std::vector<Constant*> Elems;
2273 for (unsigned i = 0; i < $3->size(); i++) {
2274 Constant *C = (*$3)[i].C;
2275 const Type* ValTy = C->getType();
2277 error("Element #" + utostr(i) + " is not of type '" +
2278 ETy->getDescription() +"' as required!\nIt is of type '"+
2279 ValTy->getDescription() + "'");
2282 $$.C = ConstantArray::get(ATy, Elems);
2288 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2290 error("Cannot make array constant with type: '" +
2291 $1.PAT->get()->getDescription() + "'");
2292 int NumElements = ATy->getNumElements();
2293 if (NumElements != -1 && NumElements != 0)
2294 error("Type mismatch: constant sized array initialized with 0"
2295 " arguments, but has size of " + itostr(NumElements) +"");
2296 $$.C = ConstantArray::get(ATy, std::vector<Constant*>());
2300 | Types 'c' STRINGCONSTANT {
2301 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2303 error("Cannot make array constant with type: '" +
2304 $1.PAT->get()->getDescription() + "'");
2305 int NumElements = ATy->getNumElements();
2306 const Type *ETy = dyn_cast<IntegerType>(ATy->getElementType());
2307 if (!ETy || cast<IntegerType>(ETy)->getBitWidth() != 8)
2308 error("String arrays require type i8, not '" + ETy->getDescription() +
2310 char *EndStr = UnEscapeLexed($3, true);
2311 if (NumElements != -1 && NumElements != (EndStr-$3))
2312 error("Can't build string constant of size " +
2313 itostr((int)(EndStr-$3)) + " when array has size " +
2314 itostr(NumElements) + "");
2315 std::vector<Constant*> Vals;
2316 for (char *C = (char *)$3; C != (char *)EndStr; ++C)
2317 Vals.push_back(ConstantInt::get(ETy, *C));
2319 $$.C = ConstantArray::get(ATy, Vals);
2323 | Types '<' ConstVector '>' { // Nonempty unsized arr
2324 const VectorType *PTy = dyn_cast<VectorType>($1.PAT->get());
2326 error("Cannot make packed constant with type: '" +
2327 $1.PAT->get()->getDescription() + "'");
2328 const Type *ETy = PTy->getElementType();
2329 int NumElements = PTy->getNumElements();
2330 // Verify that we have the correct size...
2331 if (NumElements != -1 && NumElements != (int)$3->size())
2332 error("Type mismatch: constant sized packed initialized with " +
2333 utostr($3->size()) + " arguments, but has size of " +
2334 itostr(NumElements) + "");
2335 // Verify all elements are correct type!
2336 std::vector<Constant*> Elems;
2337 for (unsigned i = 0; i < $3->size(); i++) {
2338 Constant *C = (*$3)[i].C;
2339 const Type* ValTy = C->getType();
2341 error("Element #" + utostr(i) + " is not of type '" +
2342 ETy->getDescription() +"' as required!\nIt is of type '"+
2343 ValTy->getDescription() + "'");
2346 $$.C = ConstantVector::get(PTy, Elems);
2351 | Types '{' ConstVector '}' {
2352 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2354 error("Cannot make struct constant with type: '" +
2355 $1.PAT->get()->getDescription() + "'");
2356 if ($3->size() != STy->getNumContainedTypes())
2357 error("Illegal number of initializers for structure type");
2359 // Check to ensure that constants are compatible with the type initializer!
2360 std::vector<Constant*> Fields;
2361 for (unsigned i = 0, e = $3->size(); i != e; ++i) {
2362 Constant *C = (*$3)[i].C;
2363 if (C->getType() != STy->getElementType(i))
2364 error("Expected type '" + STy->getElementType(i)->getDescription() +
2365 "' for element #" + utostr(i) + " of structure initializer");
2366 Fields.push_back(C);
2368 $$.C = ConstantStruct::get(STy, Fields);
2374 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2376 error("Cannot make struct constant with type: '" +
2377 $1.PAT->get()->getDescription() + "'");
2378 if (STy->getNumContainedTypes() != 0)
2379 error("Illegal number of initializers for structure type");
2380 $$.C = ConstantStruct::get(STy, std::vector<Constant*>());
2384 | Types '<' '{' ConstVector '}' '>' {
2385 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2387 error("Cannot make packed struct constant with type: '" +
2388 $1.PAT->get()->getDescription() + "'");
2389 if ($4->size() != STy->getNumContainedTypes())
2390 error("Illegal number of initializers for packed structure type");
2392 // Check to ensure that constants are compatible with the type initializer!
2393 std::vector<Constant*> Fields;
2394 for (unsigned i = 0, e = $4->size(); i != e; ++i) {
2395 Constant *C = (*$4)[i].C;
2396 if (C->getType() != STy->getElementType(i))
2397 error("Expected type '" + STy->getElementType(i)->getDescription() +
2398 "' for element #" + utostr(i) + " of packed struct initializer");
2399 Fields.push_back(C);
2401 $$.C = ConstantStruct::get(STy, Fields);
2406 | Types '<' '{' '}' '>' {
2407 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2409 error("Cannot make packed struct constant with type: '" +
2410 $1.PAT->get()->getDescription() + "'");
2411 if (STy->getNumContainedTypes() != 0)
2412 error("Illegal number of initializers for packed structure type");
2413 $$.C = ConstantStruct::get(STy, std::vector<Constant*>());
2418 const PointerType *PTy = dyn_cast<PointerType>($1.PAT->get());
2420 error("Cannot make null pointer constant with type: '" +
2421 $1.PAT->get()->getDescription() + "'");
2422 $$.C = ConstantPointerNull::get(PTy);
2427 $$.C = UndefValue::get($1.PAT->get());
2431 | Types SymbolicValueRef {
2432 const PointerType *Ty = dyn_cast<PointerType>($1.PAT->get());
2434 error("Global const reference must be a pointer type, not" +
2435 $1.PAT->get()->getDescription());
2437 // ConstExprs can exist in the body of a function, thus creating
2438 // GlobalValues whenever they refer to a variable. Because we are in
2439 // the context of a function, getExistingValue will search the functions
2440 // symbol table instead of the module symbol table for the global symbol,
2441 // which throws things all off. To get around this, we just tell
2442 // getExistingValue that we are at global scope here.
2444 Function *SavedCurFn = CurFun.CurrentFunction;
2445 CurFun.CurrentFunction = 0;
2447 Value *V = getExistingValue(Ty, $2);
2448 CurFun.CurrentFunction = SavedCurFn;
2450 // If this is an initializer for a constant pointer, which is referencing a
2451 // (currently) undefined variable, create a stub now that shall be replaced
2452 // in the future with the right type of variable.
2455 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers");
2456 const PointerType *PT = cast<PointerType>(Ty);
2458 // First check to see if the forward references value is already created!
2459 PerModuleInfo::GlobalRefsType::iterator I =
2460 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
2462 if (I != CurModule.GlobalRefs.end()) {
2463 V = I->second; // Placeholder already exists, use it...
2467 if ($2.Type == ValID::NameVal) Name = $2.Name;
2469 // Create the forward referenced global.
2471 if (const FunctionType *FTy =
2472 dyn_cast<FunctionType>(PT->getElementType())) {
2473 GV = new Function(FTy, GlobalValue::ExternalLinkage, Name,
2474 CurModule.CurrentModule);
2476 GV = new GlobalVariable(PT->getElementType(), false,
2477 GlobalValue::ExternalLinkage, 0,
2478 Name, CurModule.CurrentModule);
2481 // Keep track of the fact that we have a forward ref to recycle it
2482 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
2486 $$.C = cast<GlobalValue>(V);
2488 delete $1.PAT; // Free the type handle
2491 if ($1.PAT->get() != $2.C->getType())
2492 error("Mismatched types for constant expression");
2497 | Types ZEROINITIALIZER {
2498 const Type *Ty = $1.PAT->get();
2499 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
2500 error("Cannot create a null initialized value of this type");
2501 $$.C = Constant::getNullValue(Ty);
2505 | SIntType EINT64VAL { // integral constants
2506 const Type *Ty = $1.T;
2507 if (!ConstantInt::isValueValidForType(Ty, $2))
2508 error("Constant value doesn't fit in type");
2509 $$.C = ConstantInt::get(Ty, $2);
2512 | UIntType EUINT64VAL { // integral constants
2513 const Type *Ty = $1.T;
2514 if (!ConstantInt::isValueValidForType(Ty, $2))
2515 error("Constant value doesn't fit in type");
2516 $$.C = ConstantInt::get(Ty, $2);
2517 $$.S.makeUnsigned();
2519 | BOOL TRUETOK { // Boolean constants
2520 $$.C = ConstantInt::get(Type::Int1Ty, true);
2521 $$.S.makeUnsigned();
2523 | BOOL FALSETOK { // Boolean constants
2524 $$.C = ConstantInt::get(Type::Int1Ty, false);
2525 $$.S.makeUnsigned();
2527 | FPType FPVAL { // Float & Double constants
2528 if (!ConstantFP::isValueValidForType($1.T, $2))
2529 error("Floating point constant invalid for type");
2530 $$.C = ConstantFP::get($1.T, $2);
2531 $$.S.makeSignless();
2536 : CastOps '(' ConstVal TO Types ')' {
2537 const Type* SrcTy = $3.C->getType();
2538 const Type* DstTy = $5.PAT->get();
2539 Signedness SrcSign($3.S);
2540 Signedness DstSign($5.S);
2541 if (!SrcTy->isFirstClassType())
2542 error("cast constant expression from a non-primitive type: '" +
2543 SrcTy->getDescription() + "'");
2544 if (!DstTy->isFirstClassType())
2545 error("cast constant expression to a non-primitive type: '" +
2546 DstTy->getDescription() + "'");
2547 $$.C = cast<Constant>(getCast($1, $3.C, SrcSign, DstTy, DstSign));
2551 | GETELEMENTPTR '(' ConstVal IndexList ')' {
2552 const Type *Ty = $3.C->getType();
2553 if (!isa<PointerType>(Ty))
2554 error("GetElementPtr requires a pointer operand");
2556 std::vector<Constant*> CIndices;
2557 upgradeGEPCEIndices($3.C->getType(), $4, CIndices);
2560 $$.C = ConstantExpr::getGetElementPtr($3.C, &CIndices[0], CIndices.size());
2561 $$.S.copy(getElementSign($3, CIndices));
2563 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2564 if (!$3.C->getType()->isInteger() ||
2565 cast<IntegerType>($3.C->getType())->getBitWidth() != 1)
2566 error("Select condition must be bool type");
2567 if ($5.C->getType() != $7.C->getType())
2568 error("Select operand types must match");
2569 $$.C = ConstantExpr::getSelect($3.C, $5.C, $7.C);
2572 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
2573 const Type *Ty = $3.C->getType();
2574 if (Ty != $5.C->getType())
2575 error("Binary operator types must match");
2576 // First, make sure we're dealing with the right opcode by upgrading from
2577 // obsolete versions.
2578 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $3.S);
2580 // HACK: llvm 1.3 and earlier used to emit invalid pointer constant exprs.
2581 // To retain backward compatibility with these early compilers, we emit a
2582 // cast to the appropriate integer type automatically if we are in the
2583 // broken case. See PR424 for more information.
2584 if (!isa<PointerType>(Ty)) {
2585 $$.C = ConstantExpr::get(Opcode, $3.C, $5.C);
2587 const Type *IntPtrTy = 0;
2588 switch (CurModule.CurrentModule->getPointerSize()) {
2589 case Module::Pointer32: IntPtrTy = Type::Int32Ty; break;
2590 case Module::Pointer64: IntPtrTy = Type::Int64Ty; break;
2591 default: error("invalid pointer binary constant expr");
2593 $$.C = ConstantExpr::get(Opcode,
2594 ConstantExpr::getCast(Instruction::PtrToInt, $3.C, IntPtrTy),
2595 ConstantExpr::getCast(Instruction::PtrToInt, $5.C, IntPtrTy));
2596 $$.C = ConstantExpr::getCast(Instruction::IntToPtr, $$.C, Ty);
2600 | LogicalOps '(' ConstVal ',' ConstVal ')' {
2601 const Type* Ty = $3.C->getType();
2602 if (Ty != $5.C->getType())
2603 error("Logical operator types must match");
2604 if (!Ty->isInteger()) {
2605 if (!isa<VectorType>(Ty) ||
2606 !cast<VectorType>(Ty)->getElementType()->isInteger())
2607 error("Logical operator requires integer operands");
2609 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $3.S);
2610 $$.C = ConstantExpr::get(Opcode, $3.C, $5.C);
2613 | SetCondOps '(' ConstVal ',' ConstVal ')' {
2614 const Type* Ty = $3.C->getType();
2615 if (Ty != $5.C->getType())
2616 error("setcc operand types must match");
2617 unsigned short pred;
2618 Instruction::OtherOps Opcode = getCompareOp($1, pred, Ty, $3.S);
2619 $$.C = ConstantExpr::getCompare(Opcode, $3.C, $5.C);
2620 $$.S.makeUnsigned();
2622 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2623 if ($4.C->getType() != $6.C->getType())
2624 error("icmp operand types must match");
2625 $$.C = ConstantExpr::getCompare($2, $4.C, $6.C);
2626 $$.S.makeUnsigned();
2628 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2629 if ($4.C->getType() != $6.C->getType())
2630 error("fcmp operand types must match");
2631 $$.C = ConstantExpr::getCompare($2, $4.C, $6.C);
2632 $$.S.makeUnsigned();
2634 | ShiftOps '(' ConstVal ',' ConstVal ')' {
2635 if (!$5.C->getType()->isInteger() ||
2636 cast<IntegerType>($5.C->getType())->getBitWidth() != 8)
2637 error("Shift count for shift constant must be unsigned byte");
2638 const Type* Ty = $3.C->getType();
2639 if (!$3.C->getType()->isInteger())
2640 error("Shift constant expression requires integer operand");
2641 Constant *ShiftAmt = ConstantExpr::getZExt($5.C, Ty);
2642 $$.C = ConstantExpr::get(getBinaryOp($1, Ty, $3.S), $3.C, ShiftAmt);
2645 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
2646 if (!ExtractElementInst::isValidOperands($3.C, $5.C))
2647 error("Invalid extractelement operands");
2648 $$.C = ConstantExpr::getExtractElement($3.C, $5.C);
2649 $$.S.copy($3.S.get(0));
2651 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2652 if (!InsertElementInst::isValidOperands($3.C, $5.C, $7.C))
2653 error("Invalid insertelement operands");
2654 $$.C = ConstantExpr::getInsertElement($3.C, $5.C, $7.C);
2657 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2658 if (!ShuffleVectorInst::isValidOperands($3.C, $5.C, $7.C))
2659 error("Invalid shufflevector operands");
2660 $$.C = ConstantExpr::getShuffleVector($3.C, $5.C, $7.C);
2666 // ConstVector - A list of comma separated constants.
2668 : ConstVector ',' ConstVal { ($$ = $1)->push_back($3); }
2670 $$ = new std::vector<ConstInfo>();
2676 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
2678 : GLOBAL { $$ = false; }
2679 | CONSTANT { $$ = true; }
2683 //===----------------------------------------------------------------------===//
2684 // Rules to match Modules
2685 //===----------------------------------------------------------------------===//
2687 // Module rule: Capture the result of parsing the whole file into a result
2692 $$ = ParserResult = $1;
2693 CurModule.ModuleDone();
2697 // FunctionList - A list of functions, preceeded by a constant pool.
2700 : FunctionList Function { $$ = $1; CurFun.FunctionDone(); }
2701 | FunctionList FunctionProto { $$ = $1; }
2702 | FunctionList MODULE ASM_TOK AsmBlock { $$ = $1; }
2703 | FunctionList IMPLEMENTATION { $$ = $1; }
2705 $$ = CurModule.CurrentModule;
2706 // Emit an error if there are any unresolved types left.
2707 if (!CurModule.LateResolveTypes.empty()) {
2708 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
2709 if (DID.Type == ValID::NameVal) {
2710 error("Reference to an undefined type: '"+DID.getName() + "'");
2712 error("Reference to an undefined type: #" + itostr(DID.Num));
2718 // ConstPool - Constants with optional names assigned to them.
2720 : ConstPool OptAssign TYPE TypesV {
2721 // Eagerly resolve types. This is not an optimization, this is a
2722 // requirement that is due to the fact that we could have this:
2724 // %list = type { %list * }
2725 // %list = type { %list * } ; repeated type decl
2727 // If types are not resolved eagerly, then the two types will not be
2728 // determined to be the same type!
2730 ResolveTypeTo($2, $4.PAT->get(), $4.S);
2732 if (!setTypeName($4, $2) && !$2) {
2733 // If this is a numbered type that is not a redefinition, add it to the
2735 CurModule.Types.push_back($4.PAT->get());
2736 CurModule.TypeSigns.push_back($4.S);
2740 | ConstPool FunctionProto { // Function prototypes can be in const pool
2742 | ConstPool MODULE ASM_TOK AsmBlock { // Asm blocks can be in the const pool
2744 | ConstPool OptAssign OptLinkage GlobalType ConstVal {
2746 error("Global value initializer is not a constant");
2747 CurGV = ParseGlobalVariable($2, $3, $4, $5.C->getType(), $5.C, $5.S);
2748 } GlobalVarAttributes {
2751 | ConstPool OptAssign EXTERNAL GlobalType Types {
2752 const Type *Ty = $5.PAT->get();
2753 CurGV = ParseGlobalVariable($2, GlobalValue::ExternalLinkage, $4, Ty, 0,
2756 } GlobalVarAttributes {
2759 | ConstPool OptAssign DLLIMPORT GlobalType Types {
2760 const Type *Ty = $5.PAT->get();
2761 CurGV = ParseGlobalVariable($2, GlobalValue::DLLImportLinkage, $4, Ty, 0,
2764 } GlobalVarAttributes {
2767 | ConstPool OptAssign EXTERN_WEAK GlobalType Types {
2768 const Type *Ty = $5.PAT->get();
2770 ParseGlobalVariable($2, GlobalValue::ExternalWeakLinkage, $4, Ty, 0,
2773 } GlobalVarAttributes {
2776 | ConstPool TARGET TargetDefinition {
2778 | ConstPool DEPLIBS '=' LibrariesDefinition {
2780 | /* empty: end of list */ {
2786 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2787 char *EndStr = UnEscapeLexed($1, true);
2788 std::string NewAsm($1, EndStr);
2791 if (AsmSoFar.empty())
2792 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2794 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2799 : BIG { $$ = Module::BigEndian; }
2800 | LITTLE { $$ = Module::LittleEndian; }
2804 : ENDIAN '=' BigOrLittle {
2805 CurModule.setEndianness($3);
2807 | POINTERSIZE '=' EUINT64VAL {
2809 CurModule.setPointerSize(Module::Pointer32);
2811 CurModule.setPointerSize(Module::Pointer64);
2813 error("Invalid pointer size: '" + utostr($3) + "'");
2815 | TRIPLE '=' STRINGCONSTANT {
2816 CurModule.CurrentModule->setTargetTriple($3);
2819 | DATALAYOUT '=' STRINGCONSTANT {
2820 CurModule.CurrentModule->setDataLayout($3);
2830 : LibList ',' STRINGCONSTANT {
2831 CurModule.CurrentModule->addLibrary($3);
2835 CurModule.CurrentModule->addLibrary($1);
2838 | /* empty: end of list */ { }
2841 //===----------------------------------------------------------------------===//
2842 // Rules to match Function Headers
2843 //===----------------------------------------------------------------------===//
2846 : VAR_ID | STRINGCONSTANT
2851 | /*empty*/ { $$ = 0; }
2856 if ($1.PAT->get() == Type::VoidTy)
2857 error("void typed arguments are invalid");
2858 $$ = new std::pair<PATypeInfo, char*>($1, $2);
2863 : ArgListH ',' ArgVal {
2869 $$ = new std::vector<std::pair<PATypeInfo,char*> >();
2876 : ArgListH { $$ = $1; }
2877 | ArgListH ',' DOTDOTDOT {
2880 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2881 VoidTI.S.makeSignless();
2882 $$->push_back(std::pair<PATypeInfo, char*>(VoidTI, 0));
2885 $$ = new std::vector<std::pair<PATypeInfo,char*> >();
2887 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2888 VoidTI.S.makeSignless();
2889 $$->push_back(std::pair<PATypeInfo, char*>(VoidTI, 0));
2891 | /* empty */ { $$ = 0; }
2895 : OptCallingConv TypesV Name '(' ArgList ')' OptSection OptAlign {
2897 std::string FunctionName($3);
2898 free($3); // Free strdup'd memory!
2900 const Type* RetTy = $2.PAT->get();
2902 if (!RetTy->isFirstClassType() && RetTy != Type::VoidTy)
2903 error("LLVM functions cannot return aggregate types");
2906 FTySign.makeComposite($2.S);
2907 std::vector<const Type*> ParamTyList;
2909 // In LLVM 2.0 the signatures of three varargs intrinsics changed to take
2910 // i8*. We check here for those names and override the parameter list
2911 // types to ensure the prototype is correct.
2912 if (FunctionName == "llvm.va_start" || FunctionName == "llvm.va_end") {
2913 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2914 } else if (FunctionName == "llvm.va_copy") {
2915 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2916 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2917 } else if ($5) { // If there are arguments...
2918 for (std::vector<std::pair<PATypeInfo,char*> >::iterator
2919 I = $5->begin(), E = $5->end(); I != E; ++I) {
2920 const Type *Ty = I->first.PAT->get();
2921 ParamTyList.push_back(Ty);
2922 FTySign.add(I->first.S);
2926 bool isVarArg = ParamTyList.size() && ParamTyList.back() == Type::VoidTy;
2928 ParamTyList.pop_back();
2930 // Convert the CSRet calling convention into the corresponding parameter
2932 ParamAttrsList *ParamAttrs = 0;
2933 if ($1 == OldCallingConv::CSRet) {
2934 ParamAttrs = new ParamAttrsList();
2935 ParamAttrs->addAttributes(0, ParamAttr::None); // result
2936 ParamAttrs->addAttributes(1, ParamAttr::StructRet); // first arg
2939 const FunctionType *FT =
2940 FunctionType::get(RetTy, ParamTyList, isVarArg, ParamAttrs);
2941 const PointerType *PFT = PointerType::get(FT);
2945 if (!FunctionName.empty()) {
2946 ID = ValID::create((char*)FunctionName.c_str());
2948 ID = ValID::create((int)CurModule.Values[PFT].size());
2950 ID.S.makeComposite(FTySign);
2953 Module* M = CurModule.CurrentModule;
2955 // See if this function was forward referenced. If so, recycle the object.
2956 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2957 // Move the function to the end of the list, from whereever it was
2958 // previously inserted.
2959 Fn = cast<Function>(FWRef);
2960 M->getFunctionList().remove(Fn);
2961 M->getFunctionList().push_back(Fn);
2962 } else if (!FunctionName.empty()) {
2963 GlobalValue *Conflict = M->getFunction(FunctionName);
2965 Conflict = M->getNamedGlobal(FunctionName);
2966 if (Conflict && PFT == Conflict->getType()) {
2967 if (!CurFun.isDeclare && !Conflict->isDeclaration()) {
2968 // We have two function definitions that conflict, same type, same
2969 // name. We should really check to make sure that this is the result
2970 // of integer type planes collapsing and generate an error if it is
2971 // not, but we'll just rename on the assumption that it is. However,
2972 // let's do it intelligently and rename the internal linkage one
2974 std::string NewName(makeNameUnique(FunctionName));
2975 if (Conflict->hasInternalLinkage()) {
2976 Conflict->setName(NewName);
2978 makeRenameMapKey(FunctionName, Conflict->getType(), ID.S);
2979 CurModule.RenameMap[Key] = NewName;
2980 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
2981 InsertValue(Fn, CurModule.Values);
2983 Fn = new Function(FT, CurFun.Linkage, NewName, M);
2984 InsertValue(Fn, CurModule.Values);
2986 makeRenameMapKey(FunctionName, PFT, ID.S);
2987 CurModule.RenameMap[Key] = NewName;
2990 // If they are not both definitions, then just use the function we
2991 // found since the types are the same.
2992 Fn = cast<Function>(Conflict);
2994 // Make sure to strip off any argument names so we can't get
2996 if (Fn->isDeclaration())
2997 for (Function::arg_iterator AI = Fn->arg_begin(),
2998 AE = Fn->arg_end(); AI != AE; ++AI)
3001 } else if (Conflict) {
3002 // We have two globals with the same name and different types.
3003 // Previously, this was permitted because the symbol table had
3004 // "type planes" and names only needed to be distinct within a
3005 // type plane. After PR411 was fixed, this is no loner the case.
3006 // To resolve this we must rename one of the two.
3007 if (Conflict->hasInternalLinkage()) {
3008 // We can safely rename the Conflict.
3010 makeRenameMapKey(Conflict->getName(), Conflict->getType(),
3011 CurModule.NamedValueSigns[Conflict->getName()]);
3012 Conflict->setName(makeNameUnique(Conflict->getName()));
3013 CurModule.RenameMap[Key] = Conflict->getName();
3014 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
3015 InsertValue(Fn, CurModule.Values);
3017 // We can't quietly rename either of these things, but we must
3018 // rename one of them. Only if the function's linkage is internal can
3019 // we forgo a warning message about the renamed function.
3020 std::string NewName = makeNameUnique(FunctionName);
3021 if (CurFun.Linkage != GlobalValue::InternalLinkage) {
3022 warning("Renaming function '" + FunctionName + "' as '" + NewName +
3023 "' may cause linkage errors");
3025 // Elect to rename the thing we're now defining.
3026 Fn = new Function(FT, CurFun.Linkage, NewName, M);
3027 InsertValue(Fn, CurModule.Values);
3028 RenameMapKey Key = makeRenameMapKey(FunctionName, PFT, ID.S);
3029 CurModule.RenameMap[Key] = NewName;
3032 // There's no conflict, just define the function
3033 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
3034 InsertValue(Fn, CurModule.Values);
3038 CurFun.FunctionStart(Fn);
3040 if (CurFun.isDeclare) {
3041 // If we have declaration, always overwrite linkage. This will allow us
3042 // to correctly handle cases, when pointer to function is passed as
3043 // argument to another function.
3044 Fn->setLinkage(CurFun.Linkage);
3046 Fn->setCallingConv(upgradeCallingConv($1));
3047 Fn->setAlignment($8);
3053 // Add all of the arguments we parsed to the function...
3054 if ($5) { // Is null if empty...
3055 if (isVarArg) { // Nuke the last entry
3056 assert($5->back().first.PAT->get() == Type::VoidTy &&
3057 $5->back().second == 0 && "Not a varargs marker");
3058 delete $5->back().first.PAT;
3059 $5->pop_back(); // Delete the last entry
3061 Function::arg_iterator ArgIt = Fn->arg_begin();
3062 Function::arg_iterator ArgEnd = Fn->arg_end();
3063 std::vector<std::pair<PATypeInfo,char*> >::iterator I = $5->begin();
3064 std::vector<std::pair<PATypeInfo,char*> >::iterator E = $5->end();
3065 for ( ; I != E && ArgIt != ArgEnd; ++I, ++ArgIt) {
3066 delete I->first.PAT; // Delete the typeholder...
3067 ValueInfo VI; VI.V = ArgIt; VI.S.copy(I->first.S);
3068 setValueName(VI, I->second); // Insert arg into symtab...
3071 delete $5; // We're now done with the argument list
3077 : BEGINTOK | '{' // Allow BEGIN or '{' to start a function
3081 : OptLinkage { CurFun.Linkage = $1; } FunctionHeaderH BEGIN {
3082 $$ = CurFun.CurrentFunction;
3084 // Make sure that we keep track of the linkage type even if there was a
3085 // previous "declare".
3091 : ENDTOK | '}' // Allow end of '}' to end a function
3095 : BasicBlockList END {
3100 : /*default*/ { $$ = GlobalValue::ExternalLinkage; }
3101 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
3102 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
3106 : DECLARE { CurFun.isDeclare = true; }
3107 FnDeclareLinkage { CurFun.Linkage = $3; } FunctionHeaderH {
3108 $$ = CurFun.CurrentFunction;
3109 CurFun.FunctionDone();
3114 //===----------------------------------------------------------------------===//
3115 // Rules to match Basic Blocks
3116 //===----------------------------------------------------------------------===//
3119 : /* empty */ { $$ = false; }
3120 | SIDEEFFECT { $$ = true; }
3124 // A reference to a direct constant
3125 : ESINT64VAL { $$ = ValID::create($1); }
3126 | EUINT64VAL { $$ = ValID::create($1); }
3127 | FPVAL { $$ = ValID::create($1); }
3129 $$ = ValID::create(ConstantInt::get(Type::Int1Ty, true));
3130 $$.S.makeUnsigned();
3133 $$ = ValID::create(ConstantInt::get(Type::Int1Ty, false));
3134 $$.S.makeUnsigned();
3136 | NULL_TOK { $$ = ValID::createNull(); }
3137 | UNDEF { $$ = ValID::createUndef(); }
3138 | ZEROINITIALIZER { $$ = ValID::createZeroInit(); }
3139 | '<' ConstVector '>' { // Nonempty unsized packed vector
3140 const Type *ETy = (*$2)[0].C->getType();
3141 int NumElements = $2->size();
3142 VectorType* pt = VectorType::get(ETy, NumElements);
3143 $$.S.makeComposite((*$2)[0].S);
3144 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt, $$.S));
3146 // Verify all elements are correct type!
3147 std::vector<Constant*> Elems;
3148 for (unsigned i = 0; i < $2->size(); i++) {
3149 Constant *C = (*$2)[i].C;
3150 const Type *CTy = C->getType();
3152 error("Element #" + utostr(i) + " is not of type '" +
3153 ETy->getDescription() +"' as required!\nIt is of type '" +
3154 CTy->getDescription() + "'");
3157 $$ = ValID::create(ConstantVector::get(pt, Elems));
3158 delete PTy; delete $2;
3161 $$ = ValID::create($1.C);
3164 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
3165 char *End = UnEscapeLexed($3, true);
3166 std::string AsmStr = std::string($3, End);
3167 End = UnEscapeLexed($5, true);
3168 std::string Constraints = std::string($5, End);
3169 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
3175 // SymbolicValueRef - Reference to one of two ways of symbolically refering to // another value.
3178 : INTVAL { $$ = ValID::create($1); $$.S.makeSignless(); }
3179 | Name { $$ = ValID::create($1); $$.S.makeSignless(); }
3182 // ValueRef - A reference to a definition... either constant or symbolic
3184 : SymbolicValueRef | ConstValueRef
3188 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
3189 // type immediately preceeds the value reference, and allows complex constant
3190 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
3193 const Type *Ty = $1.PAT->get();
3195 $$.V = getVal(Ty, $2);
3202 : BasicBlockList BasicBlock {
3205 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
3210 // Basic blocks are terminated by branching instructions:
3211 // br, br/cc, switch, ret
3214 : InstructionList OptAssign BBTerminatorInst {
3215 ValueInfo VI; VI.V = $3.TI; VI.S.copy($3.S);
3216 setValueName(VI, $2);
3218 $1->getInstList().push_back($3.TI);
3225 : InstructionList Inst {
3227 $1->getInstList().push_back($2.I);
3231 $$ = CurBB = getBBVal(ValID::create((int)CurFun.NextBBNum++),true);
3232 // Make sure to move the basic block to the correct location in the
3233 // function, instead of leaving it inserted wherever it was first
3235 Function::BasicBlockListType &BBL =
3236 CurFun.CurrentFunction->getBasicBlockList();
3237 BBL.splice(BBL.end(), BBL, $$);
3240 $$ = CurBB = getBBVal(ValID::create($1), true);
3241 // Make sure to move the basic block to the correct location in the
3242 // function, instead of leaving it inserted wherever it was first
3244 Function::BasicBlockListType &BBL =
3245 CurFun.CurrentFunction->getBasicBlockList();
3246 BBL.splice(BBL.end(), BBL, $$);
3250 Unwind : UNWIND | EXCEPT;
3253 : RET ResolvedVal { // Return with a result...
3254 $$.TI = new ReturnInst($2.V);
3255 $$.S.makeSignless();
3257 | RET VOID { // Return with no result...
3258 $$.TI = new ReturnInst();
3259 $$.S.makeSignless();
3261 | BR LABEL ValueRef { // Unconditional Branch...
3262 BasicBlock* tmpBB = getBBVal($3);
3263 $$.TI = new BranchInst(tmpBB);
3264 $$.S.makeSignless();
3265 } // Conditional Branch...
3266 | BR BOOL ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
3267 $6.S.makeSignless();
3268 $9.S.makeSignless();
3269 BasicBlock* tmpBBA = getBBVal($6);
3270 BasicBlock* tmpBBB = getBBVal($9);
3271 $3.S.makeUnsigned();
3272 Value* tmpVal = getVal(Type::Int1Ty, $3);
3273 $$.TI = new BranchInst(tmpBBA, tmpBBB, tmpVal);
3274 $$.S.makeSignless();
3276 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
3278 Value* tmpVal = getVal($2.T, $3);
3279 $6.S.makeSignless();
3280 BasicBlock* tmpBB = getBBVal($6);
3281 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
3283 $$.S.makeSignless();
3284 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
3286 for (; I != E; ++I) {
3287 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
3288 S->addCase(CI, I->second);
3290 error("Switch case is constant, but not a simple integer");
3294 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
3296 Value* tmpVal = getVal($2.T, $3);
3297 $6.S.makeSignless();
3298 BasicBlock* tmpBB = getBBVal($6);
3299 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
3301 $$.S.makeSignless();
3303 | INVOKE OptCallingConv TypesV ValueRef '(' ValueRefListE ')'
3304 TO LABEL ValueRef Unwind LABEL ValueRef {
3305 const PointerType *PFTy;
3306 const FunctionType *Ty;
3309 if (!(PFTy = dyn_cast<PointerType>($3.PAT->get())) ||
3310 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3311 // Pull out the types of all of the arguments...
3312 std::vector<const Type*> ParamTypes;
3313 FTySign.makeComposite($3.S);
3315 for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
3317 ParamTypes.push_back((*I).V->getType());
3321 ParamAttrsList *ParamAttrs = 0;
3322 if ($2 == OldCallingConv::CSRet) {
3323 ParamAttrs = new ParamAttrsList();
3324 ParamAttrs->addAttributes(0, ParamAttr::None); // Function result
3325 ParamAttrs->addAttributes(1, ParamAttr::StructRet); // first param
3327 bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
3328 if (isVarArg) ParamTypes.pop_back();
3329 Ty = FunctionType::get($3.PAT->get(), ParamTypes, isVarArg, ParamAttrs);
3330 PFTy = PointerType::get(Ty);
3334 // Get the signedness of the result type. $3 is the pointer to the
3335 // function type so we get the 0th element to extract the function type,
3336 // and then the 0th element again to get the result type.
3337 $$.S.copy($3.S.get(0).get(0));
3340 $4.S.makeComposite(FTySign);
3341 Value *V = getVal(PFTy, $4); // Get the function we're calling...
3342 BasicBlock *Normal = getBBVal($10);
3343 BasicBlock *Except = getBBVal($13);
3345 // Create the call node...
3346 if (!$6) { // Has no arguments?
3347 $$.TI = new InvokeInst(V, Normal, Except, 0, 0);
3348 } else { // Has arguments?
3349 // Loop through FunctionType's arguments and ensure they are specified
3352 FunctionType::param_iterator I = Ty->param_begin();
3353 FunctionType::param_iterator E = Ty->param_end();
3354 std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
3356 std::vector<Value*> Args;
3357 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
3358 if ((*ArgI).V->getType() != *I)
3359 error("Parameter " +(*ArgI).V->getName()+ " is not of type '" +
3360 (*I)->getDescription() + "'");
3361 Args.push_back((*ArgI).V);
3364 if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
3365 error("Invalid number of parameters detected");
3367 $$.TI = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
3369 cast<InvokeInst>($$.TI)->setCallingConv(upgradeCallingConv($2));
3374 $$.TI = new UnwindInst();
3375 $$.S.makeSignless();
3378 $$.TI = new UnreachableInst();
3379 $$.S.makeSignless();
3384 : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
3387 Constant *V = cast<Constant>(getExistingValue($2.T, $3));
3390 error("May only switch on a constant pool value");
3392 $6.S.makeSignless();
3393 BasicBlock* tmpBB = getBBVal($6);
3394 $$->push_back(std::make_pair(V, tmpBB));
3396 | IntType ConstValueRef ',' LABEL ValueRef {
3397 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
3399 Constant *V = cast<Constant>(getExistingValue($1.T, $2));
3402 error("May only switch on a constant pool value");
3404 $5.S.makeSignless();
3405 BasicBlock* tmpBB = getBBVal($5);
3406 $$->push_back(std::make_pair(V, tmpBB));
3411 : OptAssign InstVal {
3414 if (BitCastInst *BCI = dyn_cast<BitCastInst>($2.I))
3415 if (BCI->getSrcTy() == BCI->getDestTy() &&
3416 BCI->getOperand(0)->getName() == $1)
3417 // This is a useless bit cast causing a name redefinition. It is
3418 // a bit cast from a type to the same type of an operand with the
3419 // same name as the name we would give this instruction. Since this
3420 // instruction results in no code generation, it is safe to omit
3421 // the instruction. This situation can occur because of collapsed
3422 // type planes. For example:
3423 // %X = add int %Y, %Z
3424 // %X = cast int %Y to uint
3425 // After upgrade, this looks like:
3426 // %X = add i32 %Y, %Z
3427 // %X = bitcast i32 to i32
3428 // The bitcast is clearly useless so we omit it.
3432 $$.S.makeSignless();
3434 ValueInfo VI; VI.V = $2.I; VI.S.copy($2.S);
3435 setValueName(VI, $1);
3441 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
3442 $$.P = new std::list<std::pair<Value*, BasicBlock*> >();
3445 Value* tmpVal = getVal($1.PAT->get(), $3);
3446 $5.S.makeSignless();
3447 BasicBlock* tmpBB = getBBVal($5);
3448 $$.P->push_back(std::make_pair(tmpVal, tmpBB));
3451 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
3454 Value* tmpVal = getVal($1.P->front().first->getType(), $4);
3455 $6.S.makeSignless();
3456 BasicBlock* tmpBB = getBBVal($6);
3457 $1.P->push_back(std::make_pair(tmpVal, tmpBB));
3461 ValueRefList : ResolvedVal { // Used for call statements, and memory insts...
3462 $$ = new std::vector<ValueInfo>();
3465 | ValueRefList ',' ResolvedVal {
3470 // ValueRefListE - Just like ValueRefList, except that it may also be empty!
3473 | /*empty*/ { $$ = 0; }
3486 : ArithmeticOps Types ValueRef ',' ValueRef {
3489 const Type* Ty = $2.PAT->get();
3490 if (!Ty->isInteger() && !Ty->isFloatingPoint() && !isa<VectorType>(Ty))
3491 error("Arithmetic operator requires integer, FP, or packed operands");
3492 if (isa<VectorType>(Ty) &&
3493 ($1 == URemOp || $1 == SRemOp || $1 == FRemOp || $1 == RemOp))
3494 error("Remainder not supported on vector types");
3495 // Upgrade the opcode from obsolete versions before we do anything with it.
3496 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $2.S);
3497 Value* val1 = getVal(Ty, $3);
3498 Value* val2 = getVal(Ty, $5);
3499 $$.I = BinaryOperator::create(Opcode, val1, val2);
3501 error("binary operator returned null");
3505 | LogicalOps Types ValueRef ',' ValueRef {
3508 const Type *Ty = $2.PAT->get();
3509 if (!Ty->isInteger()) {
3510 if (!isa<VectorType>(Ty) ||
3511 !cast<VectorType>(Ty)->getElementType()->isInteger())
3512 error("Logical operator requires integral operands");
3514 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $2.S);
3515 Value* tmpVal1 = getVal(Ty, $3);
3516 Value* tmpVal2 = getVal(Ty, $5);
3517 $$.I = BinaryOperator::create(Opcode, tmpVal1, tmpVal2);
3519 error("binary operator returned null");
3523 | SetCondOps Types ValueRef ',' ValueRef {
3526 const Type* Ty = $2.PAT->get();
3527 if(isa<VectorType>(Ty))
3528 error("VectorTypes currently not supported in setcc instructions");
3529 unsigned short pred;
3530 Instruction::OtherOps Opcode = getCompareOp($1, pred, Ty, $2.S);
3531 Value* tmpVal1 = getVal(Ty, $3);
3532 Value* tmpVal2 = getVal(Ty, $5);
3533 $$.I = CmpInst::create(Opcode, pred, tmpVal1, tmpVal2);
3535 error("binary operator returned null");
3536 $$.S.makeUnsigned();
3539 | ICMP IPredicates Types ValueRef ',' ValueRef {
3542 const Type *Ty = $3.PAT->get();
3543 if (isa<VectorType>(Ty))
3544 error("VectorTypes currently not supported in icmp instructions");
3545 else if (!Ty->isInteger() && !isa<PointerType>(Ty))
3546 error("icmp requires integer or pointer typed operands");
3547 Value* tmpVal1 = getVal(Ty, $4);
3548 Value* tmpVal2 = getVal(Ty, $6);
3549 $$.I = new ICmpInst($2, tmpVal1, tmpVal2);
3550 $$.S.makeUnsigned();
3553 | FCMP FPredicates Types ValueRef ',' ValueRef {
3556 const Type *Ty = $3.PAT->get();
3557 if (isa<VectorType>(Ty))
3558 error("VectorTypes currently not supported in fcmp instructions");
3559 else if (!Ty->isFloatingPoint())
3560 error("fcmp instruction requires floating point operands");
3561 Value* tmpVal1 = getVal(Ty, $4);
3562 Value* tmpVal2 = getVal(Ty, $6);
3563 $$.I = new FCmpInst($2, tmpVal1, tmpVal2);
3564 $$.S.makeUnsigned();
3568 warning("Use of obsolete 'not' instruction: Replacing with 'xor");
3569 const Type *Ty = $2.V->getType();
3570 Value *Ones = ConstantInt::getAllOnesValue(Ty);
3572 error("Expected integral type for not instruction");
3573 $$.I = BinaryOperator::create(Instruction::Xor, $2.V, Ones);
3575 error("Could not create a xor instruction");
3578 | ShiftOps ResolvedVal ',' ResolvedVal {
3579 if (!$4.V->getType()->isInteger() ||
3580 cast<IntegerType>($4.V->getType())->getBitWidth() != 8)
3581 error("Shift amount must be int8");
3582 const Type* Ty = $2.V->getType();
3583 if (!Ty->isInteger())
3584 error("Shift constant expression requires integer operand");
3585 Value* ShiftAmt = 0;
3586 if (cast<IntegerType>(Ty)->getBitWidth() > Type::Int8Ty->getBitWidth())
3587 if (Constant *C = dyn_cast<Constant>($4.V))
3588 ShiftAmt = ConstantExpr::getZExt(C, Ty);
3590 ShiftAmt = new ZExtInst($4.V, Ty, makeNameUnique("shift"), CurBB);
3593 $$.I = BinaryOperator::create(getBinaryOp($1, Ty, $2.S), $2.V, ShiftAmt);
3596 | CastOps ResolvedVal TO Types {
3597 const Type *DstTy = $4.PAT->get();
3598 if (!DstTy->isFirstClassType())
3599 error("cast instruction to a non-primitive type: '" +
3600 DstTy->getDescription() + "'");
3601 $$.I = cast<Instruction>(getCast($1, $2.V, $2.S, DstTy, $4.S, true));
3605 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3606 if (!$2.V->getType()->isInteger() ||
3607 cast<IntegerType>($2.V->getType())->getBitWidth() != 1)
3608 error("select condition must be bool");
3609 if ($4.V->getType() != $6.V->getType())
3610 error("select value types should match");
3611 $$.I = new SelectInst($2.V, $4.V, $6.V);
3614 | VAARG ResolvedVal ',' Types {
3615 const Type *Ty = $4.PAT->get();
3617 $$.I = new VAArgInst($2.V, Ty);
3621 | VAARG_old ResolvedVal ',' Types {
3622 const Type* ArgTy = $2.V->getType();
3623 const Type* DstTy = $4.PAT->get();
3624 ObsoleteVarArgs = true;
3625 Function* NF = cast<Function>(CurModule.CurrentModule->
3626 getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0));
3629 //foo = alloca 1 of t
3633 AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
3634 CurBB->getInstList().push_back(foo);
3635 CallInst* bar = new CallInst(NF, $2.V);
3636 CurBB->getInstList().push_back(bar);
3637 CurBB->getInstList().push_back(new StoreInst(bar, foo));
3638 $$.I = new VAArgInst(foo, DstTy);
3642 | VANEXT_old ResolvedVal ',' Types {
3643 const Type* ArgTy = $2.V->getType();
3644 const Type* DstTy = $4.PAT->get();
3645 ObsoleteVarArgs = true;
3646 Function* NF = cast<Function>(CurModule.CurrentModule->
3647 getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0));
3649 //b = vanext a, t ->
3650 //foo = alloca 1 of t
3653 //tmp = vaarg foo, t
3655 AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
3656 CurBB->getInstList().push_back(foo);
3657 CallInst* bar = new CallInst(NF, $2.V);
3658 CurBB->getInstList().push_back(bar);
3659 CurBB->getInstList().push_back(new StoreInst(bar, foo));
3660 Instruction* tmp = new VAArgInst(foo, DstTy);
3661 CurBB->getInstList().push_back(tmp);
3662 $$.I = new LoadInst(foo);
3666 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
3667 if (!ExtractElementInst::isValidOperands($2.V, $4.V))
3668 error("Invalid extractelement operands");
3669 $$.I = new ExtractElementInst($2.V, $4.V);
3670 $$.S.copy($2.S.get(0));
3672 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3673 if (!InsertElementInst::isValidOperands($2.V, $4.V, $6.V))
3674 error("Invalid insertelement operands");
3675 $$.I = new InsertElementInst($2.V, $4.V, $6.V);
3678 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3679 if (!ShuffleVectorInst::isValidOperands($2.V, $4.V, $6.V))
3680 error("Invalid shufflevector operands");
3681 $$.I = new ShuffleVectorInst($2.V, $4.V, $6.V);
3685 const Type *Ty = $2.P->front().first->getType();
3686 if (!Ty->isFirstClassType())
3687 error("PHI node operands must be of first class type");
3688 PHINode *PHI = new PHINode(Ty);
3689 PHI->reserveOperandSpace($2.P->size());
3690 while ($2.P->begin() != $2.P->end()) {
3691 if ($2.P->front().first->getType() != Ty)
3692 error("All elements of a PHI node must be of the same type");
3693 PHI->addIncoming($2.P->front().first, $2.P->front().second);
3698 delete $2.P; // Free the list...
3700 | OptTailCall OptCallingConv TypesV ValueRef '(' ValueRefListE ')' {
3701 // Handle the short call syntax
3702 const PointerType *PFTy;
3703 const FunctionType *FTy;
3705 if (!(PFTy = dyn_cast<PointerType>($3.PAT->get())) ||
3706 !(FTy = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3707 // Pull out the types of all of the arguments...
3708 std::vector<const Type*> ParamTypes;
3709 FTySign.makeComposite($3.S);
3711 for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
3713 ParamTypes.push_back((*I).V->getType());
3718 bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
3719 if (isVarArg) ParamTypes.pop_back();
3721 const Type *RetTy = $3.PAT->get();
3722 if (!RetTy->isFirstClassType() && RetTy != Type::VoidTy)
3723 error("Functions cannot return aggregate types");
3725 // Deal with CSRetCC
3726 ParamAttrsList *ParamAttrs = 0;
3727 if ($2 == OldCallingConv::CSRet) {
3728 ParamAttrs = new ParamAttrsList();
3729 ParamAttrs->addAttributes(0, ParamAttr::None); // function result
3730 ParamAttrs->addAttributes(1, ParamAttr::StructRet); // first parameter
3733 FTy = FunctionType::get(RetTy, ParamTypes, isVarArg, ParamAttrs);
3734 PFTy = PointerType::get(FTy);
3738 // Get the signedness of the result type. $3 is the pointer to the
3739 // function type so we get the 0th element to extract the function type,
3740 // and then the 0th element again to get the result type.
3741 $$.S.copy($3.S.get(0).get(0));
3743 $4.S.makeComposite(FTySign);
3745 // First upgrade any intrinsic calls.
3746 std::vector<Value*> Args;
3748 for (unsigned i = 0, e = $6->size(); i < e; ++i)
3749 Args.push_back((*$6)[i].V);
3750 Instruction *Inst = upgradeIntrinsicCall(FTy->getReturnType(), $4, Args);
3752 // If we got an upgraded intrinsic
3756 // Get the function we're calling
3757 Value *V = getVal(PFTy, $4);
3759 // Check the argument values match
3760 if (!$6) { // Has no arguments?
3761 // Make sure no arguments is a good thing!
3762 if (FTy->getNumParams() != 0)
3763 error("No arguments passed to a function that expects arguments");
3764 } else { // Has arguments?
3765 // Loop through FunctionType's arguments and ensure they are specified
3768 FunctionType::param_iterator I = FTy->param_begin();
3769 FunctionType::param_iterator E = FTy->param_end();
3770 std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
3772 for (; ArgI != ArgE && I != E; ++ArgI, ++I)
3773 if ((*ArgI).V->getType() != *I)
3774 error("Parameter " +(*ArgI).V->getName()+ " is not of type '" +
3775 (*I)->getDescription() + "'");
3777 if (I != E || (ArgI != ArgE && !FTy->isVarArg()))
3778 error("Invalid number of parameters detected");
3781 // Create the call instruction
3782 CallInst *CI = new CallInst(V, &Args[0], Args.size());
3783 CI->setTailCall($1);
3784 CI->setCallingConv(upgradeCallingConv($2));
3796 // IndexList - List of indices for GEP based instructions...
3798 : ',' ValueRefList { $$ = $2; }
3799 | /* empty */ { $$ = new std::vector<ValueInfo>(); }
3803 : VOLATILE { $$ = true; }
3804 | /* empty */ { $$ = false; }
3808 : MALLOC Types OptCAlign {
3809 const Type *Ty = $2.PAT->get();
3810 $$.S.makeComposite($2.S);
3811 $$.I = new MallocInst(Ty, 0, $3);
3814 | MALLOC Types ',' UINT ValueRef OptCAlign {
3815 const Type *Ty = $2.PAT->get();
3816 $5.S.makeUnsigned();
3817 $$.S.makeComposite($2.S);
3818 $$.I = new MallocInst(Ty, getVal($4.T, $5), $6);
3821 | ALLOCA Types OptCAlign {
3822 const Type *Ty = $2.PAT->get();
3823 $$.S.makeComposite($2.S);
3824 $$.I = new AllocaInst(Ty, 0, $3);
3827 | ALLOCA Types ',' UINT ValueRef OptCAlign {
3828 const Type *Ty = $2.PAT->get();
3829 $5.S.makeUnsigned();
3830 $$.S.makeComposite($4.S);
3831 $$.I = new AllocaInst(Ty, getVal($4.T, $5), $6);
3834 | FREE ResolvedVal {
3835 const Type *PTy = $2.V->getType();
3836 if (!isa<PointerType>(PTy))
3837 error("Trying to free nonpointer type '" + PTy->getDescription() + "'");
3838 $$.I = new FreeInst($2.V);
3839 $$.S.makeSignless();
3841 | OptVolatile LOAD Types ValueRef {
3842 const Type* Ty = $3.PAT->get();
3844 if (!isa<PointerType>(Ty))
3845 error("Can't load from nonpointer type: " + Ty->getDescription());
3846 if (!cast<PointerType>(Ty)->getElementType()->isFirstClassType())
3847 error("Can't load from pointer of non-first-class type: " +
3848 Ty->getDescription());
3849 Value* tmpVal = getVal(Ty, $4);
3850 $$.I = new LoadInst(tmpVal, "", $1);
3851 $$.S.copy($3.S.get(0));
3854 | OptVolatile STORE ResolvedVal ',' Types ValueRef {
3856 const PointerType *PTy = dyn_cast<PointerType>($5.PAT->get());
3858 error("Can't store to a nonpointer type: " +
3859 $5.PAT->get()->getDescription());
3860 const Type *ElTy = PTy->getElementType();
3861 Value *StoreVal = $3.V;
3862 Value* tmpVal = getVal(PTy, $6);
3863 if (ElTy != $3.V->getType()) {
3864 StoreVal = handleSRetFuncTypeMerge($3.V, ElTy);
3866 error("Can't store '" + $3.V->getType()->getDescription() +
3867 "' into space of type '" + ElTy->getDescription() + "'");
3869 PTy = PointerType::get(StoreVal->getType());
3870 if (Constant *C = dyn_cast<Constant>(tmpVal))
3871 tmpVal = ConstantExpr::getBitCast(C, PTy);
3873 tmpVal = new BitCastInst(tmpVal, PTy, "upgrd.cast", CurBB);
3876 $$.I = new StoreInst(StoreVal, tmpVal, $1);
3877 $$.S.makeSignless();
3880 | GETELEMENTPTR Types ValueRef IndexList {
3882 const Type* Ty = $2.PAT->get();
3883 if (!isa<PointerType>(Ty))
3884 error("getelementptr insn requires pointer operand");
3886 std::vector<Value*> VIndices;
3887 upgradeGEPInstIndices(Ty, $4, VIndices);
3889 Value* tmpVal = getVal(Ty, $3);
3890 $$.I = new GetElementPtrInst(tmpVal, &VIndices[0], VIndices.size());
3891 ValueInfo VI; VI.V = tmpVal; VI.S.copy($2.S);
3892 $$.S.copy(getElementSign(VI, VIndices));
3900 int yyerror(const char *ErrorMsg) {
3902 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3903 + ":" + llvm::utostr((unsigned) Upgradelineno) + ": ";
3904 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3905 if (yychar != YYEMPTY && yychar != 0)
3906 errMsg += " while reading token '" + std::string(Upgradetext, Upgradeleng) +
3908 std::cerr << "llvm-upgrade: " << errMsg << '\n';
3909 std::cout << "llvm-upgrade: parse failed.\n";
3913 void warning(const std::string& ErrorMsg) {
3915 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3916 + ":" + llvm::utostr((unsigned) Upgradelineno) + ": ";
3917 std::string errMsg = where + "warning: " + std::string(ErrorMsg);
3918 if (yychar != YYEMPTY && yychar != 0)
3919 errMsg += " while reading token '" + std::string(Upgradetext, Upgradeleng) +
3921 std::cerr << "llvm-upgrade: " << errMsg << '\n';
3924 void error(const std::string& ErrorMsg, int LineNo) {
3925 if (LineNo == -1) LineNo = Upgradelineno;
3926 Upgradelineno = LineNo;
3927 yyerror(ErrorMsg.c_str());