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* upgradeGEPIndices(const Type* PTy,
1533 std::vector<ValueInfo> *Indices,
1534 std::vector<Value*> &VIndices,
1535 std::vector<Constant*> *CIndices = 0) {
1536 // Traverse the indices with a gep_type_iterator so we can build the list
1537 // of constant and value indices for use later. Also perform upgrades
1539 if (CIndices) CIndices->clear();
1540 for (unsigned i = 0, e = Indices->size(); i != e; ++i)
1541 VIndices.push_back((*Indices)[i].V);
1542 generic_gep_type_iterator<std::vector<Value*>::iterator>
1543 GTI = gep_type_begin(PTy, VIndices.begin(), VIndices.end()),
1544 GTE = gep_type_end(PTy, VIndices.begin(), VIndices.end());
1545 for (unsigned i = 0, e = Indices->size(); i != e && GTI != GTE; ++i, ++GTI) {
1546 Value *Index = VIndices[i];
1547 if (CIndices && !isa<Constant>(Index))
1548 error("Indices to constant getelementptr must be constants");
1549 // LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte
1550 // struct indices to i32 struct indices with ZExt for compatibility.
1551 else if (isa<StructType>(*GTI)) { // Only change struct indices
1552 if (ConstantInt *CUI = dyn_cast<ConstantInt>(Index))
1553 if (CUI->getType()->getBitWidth() == 8)
1555 ConstantExpr::getCast(Instruction::ZExt, CUI, Type::Int32Ty);
1557 // Make sure that unsigned SequentialType indices are zext'd to
1558 // 64-bits if they were smaller than that because LLVM 2.0 will sext
1559 // all indices for SequentialType elements. We must retain the same
1560 // semantic (zext) for unsigned types.
1561 if (const IntegerType *Ity = dyn_cast<IntegerType>(Index->getType()))
1562 if (Ity->getBitWidth() < 64 && (*Indices)[i].S.isUnsigned()) {
1564 Index = ConstantExpr::getCast(Instruction::ZExt,
1565 cast<Constant>(Index), Type::Int64Ty);
1567 Index = CastInst::create(Instruction::ZExt, Index, Type::Int64Ty,
1568 makeNameUnique("gep"), CurBB);
1569 VIndices[i] = Index;
1572 // Add to the CIndices list, if requested.
1574 CIndices->push_back(cast<Constant>(Index));
1578 GetElementPtrInst::getIndexedType(PTy, &VIndices[0], VIndices.size(), true);
1580 error("Index list invalid for constant getelementptr");
1584 unsigned upgradeCallingConv(unsigned CC) {
1586 case OldCallingConv::C : return CallingConv::C;
1587 case OldCallingConv::CSRet : return CallingConv::C;
1588 case OldCallingConv::Fast : return CallingConv::Fast;
1589 case OldCallingConv::Cold : return CallingConv::Cold;
1590 case OldCallingConv::X86_StdCall : return CallingConv::X86_StdCall;
1591 case OldCallingConv::X86_FastCall: return CallingConv::X86_FastCall;
1597 Module* UpgradeAssembly(const std::string &infile, std::istream& in,
1598 bool debug, bool addAttrs)
1601 CurFilename = infile;
1604 AddAttributes = addAttrs;
1605 ObsoleteVarArgs = false;
1608 CurModule.CurrentModule = new Module(CurFilename);
1610 // Check to make sure the parser succeeded
1613 delete ParserResult;
1614 std::cerr << "llvm-upgrade: parse failed.\n";
1618 // Check to make sure that parsing produced a result
1619 if (!ParserResult) {
1620 std::cerr << "llvm-upgrade: no parse result.\n";
1624 // Reset ParserResult variable while saving its value for the result.
1625 Module *Result = ParserResult;
1628 //Not all functions use vaarg, so make a second check for ObsoleteVarArgs
1631 if ((F = Result->getFunction("llvm.va_start"))
1632 && F->getFunctionType()->getNumParams() == 0)
1633 ObsoleteVarArgs = true;
1634 if((F = Result->getFunction("llvm.va_copy"))
1635 && F->getFunctionType()->getNumParams() == 1)
1636 ObsoleteVarArgs = true;
1639 if (ObsoleteVarArgs && NewVarArgs) {
1640 error("This file is corrupt: it uses both new and old style varargs");
1644 if(ObsoleteVarArgs) {
1645 if(Function* F = Result->getFunction("llvm.va_start")) {
1646 if (F->arg_size() != 0) {
1647 error("Obsolete va_start takes 0 argument");
1653 //bar = alloca typeof(foo)
1657 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1658 const Type* ArgTy = F->getFunctionType()->getReturnType();
1659 const Type* ArgTyPtr = PointerType::get(ArgTy);
1660 Function* NF = cast<Function>(Result->getOrInsertFunction(
1661 "llvm.va_start", RetTy, ArgTyPtr, (Type *)0));
1663 while (!F->use_empty()) {
1664 CallInst* CI = cast<CallInst>(F->use_back());
1665 AllocaInst* bar = new AllocaInst(ArgTy, 0, "vastart.fix.1", CI);
1666 new CallInst(NF, bar, "", CI);
1667 Value* foo = new LoadInst(bar, "vastart.fix.2", CI);
1668 CI->replaceAllUsesWith(foo);
1669 CI->getParent()->getInstList().erase(CI);
1671 Result->getFunctionList().erase(F);
1674 if(Function* F = Result->getFunction("llvm.va_end")) {
1675 if(F->arg_size() != 1) {
1676 error("Obsolete va_end takes 1 argument");
1682 //bar = alloca 1 of typeof(foo)
1684 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1685 const Type* ArgTy = F->getFunctionType()->getParamType(0);
1686 const Type* ArgTyPtr = PointerType::get(ArgTy);
1687 Function* NF = cast<Function>(Result->getOrInsertFunction(
1688 "llvm.va_end", RetTy, ArgTyPtr, (Type *)0));
1690 while (!F->use_empty()) {
1691 CallInst* CI = cast<CallInst>(F->use_back());
1692 AllocaInst* bar = new AllocaInst(ArgTy, 0, "vaend.fix.1", CI);
1693 new StoreInst(CI->getOperand(1), bar, CI);
1694 new CallInst(NF, bar, "", CI);
1695 CI->getParent()->getInstList().erase(CI);
1697 Result->getFunctionList().erase(F);
1700 if(Function* F = Result->getFunction("llvm.va_copy")) {
1701 if(F->arg_size() != 1) {
1702 error("Obsolete va_copy takes 1 argument");
1707 //a = alloca 1 of typeof(foo)
1708 //b = alloca 1 of typeof(foo)
1713 const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
1714 const Type* ArgTy = F->getFunctionType()->getReturnType();
1715 const Type* ArgTyPtr = PointerType::get(ArgTy);
1716 Function* NF = cast<Function>(Result->getOrInsertFunction(
1717 "llvm.va_copy", RetTy, ArgTyPtr, ArgTyPtr, (Type *)0));
1719 while (!F->use_empty()) {
1720 CallInst* CI = cast<CallInst>(F->use_back());
1721 AllocaInst* a = new AllocaInst(ArgTy, 0, "vacopy.fix.1", CI);
1722 AllocaInst* b = new AllocaInst(ArgTy, 0, "vacopy.fix.2", CI);
1723 new StoreInst(CI->getOperand(1), b, CI);
1724 new CallInst(NF, a, b, "", CI);
1725 Value* foo = new LoadInst(a, "vacopy.fix.3", CI);
1726 CI->replaceAllUsesWith(foo);
1727 CI->getParent()->getInstList().erase(CI);
1729 Result->getFunctionList().erase(F);
1736 } // end llvm namespace
1738 using namespace llvm;
1743 llvm::Module *ModuleVal;
1744 llvm::Function *FunctionVal;
1745 std::pair<llvm::PATypeInfo, char*> *ArgVal;
1746 llvm::BasicBlock *BasicBlockVal;
1747 llvm::TermInstInfo TermInstVal;
1748 llvm::InstrInfo InstVal;
1749 llvm::ConstInfo ConstVal;
1750 llvm::ValueInfo ValueVal;
1751 llvm::PATypeInfo TypeVal;
1752 llvm::TypeInfo PrimType;
1753 llvm::PHIListInfo PHIList;
1754 std::list<llvm::PATypeInfo> *TypeList;
1755 std::vector<llvm::ValueInfo> *ValueList;
1756 std::vector<llvm::ConstInfo> *ConstVector;
1759 std::vector<std::pair<llvm::PATypeInfo,char*> > *ArgList;
1760 // Represent the RHS of PHI node
1761 std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
1763 llvm::GlobalValue::LinkageTypes Linkage;
1771 char *StrVal; // This memory is strdup'd!
1772 llvm::ValID ValIDVal; // strdup'd memory maybe!
1774 llvm::BinaryOps BinaryOpVal;
1775 llvm::TermOps TermOpVal;
1776 llvm::MemoryOps MemOpVal;
1777 llvm::OtherOps OtherOpVal;
1778 llvm::CastOps CastOpVal;
1779 llvm::ICmpInst::Predicate IPred;
1780 llvm::FCmpInst::Predicate FPred;
1781 llvm::Module::Endianness Endianness;
1784 %type <ModuleVal> Module FunctionList
1785 %type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
1786 %type <BasicBlockVal> BasicBlock InstructionList
1787 %type <TermInstVal> BBTerminatorInst
1788 %type <InstVal> Inst InstVal MemoryInst
1789 %type <ConstVal> ConstVal ConstExpr
1790 %type <ConstVector> ConstVector
1791 %type <ArgList> ArgList ArgListH
1792 %type <ArgVal> ArgVal
1793 %type <PHIList> PHIList
1794 %type <ValueList> ValueRefList ValueRefListE // For call param lists
1795 %type <ValueList> IndexList // For GEP derived indices
1796 %type <TypeList> TypeListI ArgTypeListI
1797 %type <JumpTable> JumpTable
1798 %type <BoolVal> GlobalType // GLOBAL or CONSTANT?
1799 %type <BoolVal> OptVolatile // 'volatile' or not
1800 %type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
1801 %type <BoolVal> OptSideEffect // 'sideeffect' or not.
1802 %type <Linkage> OptLinkage FnDeclareLinkage
1803 %type <Endianness> BigOrLittle
1805 // ValueRef - Unresolved reference to a definition or BB
1806 %type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
1807 %type <ValueVal> ResolvedVal // <type> <valref> pair
1809 // Tokens and types for handling constant integer values
1811 // ESINT64VAL - A negative number within long long range
1812 %token <SInt64Val> ESINT64VAL
1814 // EUINT64VAL - A positive number within uns. long long range
1815 %token <UInt64Val> EUINT64VAL
1816 %type <SInt64Val> EINT64VAL
1818 %token <SIntVal> SINTVAL // Signed 32 bit ints...
1819 %token <UIntVal> UINTVAL // Unsigned 32 bit ints...
1820 %type <SIntVal> INTVAL
1821 %token <FPVal> FPVAL // Float or Double constant
1823 // Built in types...
1824 %type <TypeVal> Types TypesV UpRTypes UpRTypesV
1825 %type <PrimType> SIntType UIntType IntType FPType PrimType // Classifications
1826 %token <PrimType> VOID BOOL SBYTE UBYTE SHORT USHORT INT UINT LONG ULONG
1827 %token <PrimType> FLOAT DOUBLE TYPE LABEL
1829 %token <StrVal> VAR_ID LABELSTR STRINGCONSTANT
1830 %type <StrVal> Name OptName OptAssign
1831 %type <UIntVal> OptAlign OptCAlign
1832 %type <StrVal> OptSection SectionString
1834 %token IMPLEMENTATION ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
1835 %token DECLARE GLOBAL CONSTANT SECTION VOLATILE
1836 %token TO DOTDOTDOT NULL_TOK UNDEF CONST INTERNAL LINKONCE WEAK APPENDING
1837 %token DLLIMPORT DLLEXPORT EXTERN_WEAK
1838 %token OPAQUE NOT EXTERNAL TARGET TRIPLE ENDIAN POINTERSIZE LITTLE BIG ALIGN
1839 %token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
1840 %token CC_TOK CCC_TOK CSRETCC_TOK FASTCC_TOK COLDCC_TOK
1841 %token X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
1843 %type <UIntVal> OptCallingConv
1845 // Basic Block Terminating Operators
1846 %token <TermOpVal> RET BR SWITCH INVOKE UNREACHABLE
1847 %token UNWIND EXCEPT
1850 %type <BinaryOpVal> ArithmeticOps LogicalOps SetCondOps // Binops Subcatagories
1851 %type <BinaryOpVal> ShiftOps
1852 %token <BinaryOpVal> ADD SUB MUL DIV UDIV SDIV FDIV REM UREM SREM FREM
1853 %token <BinaryOpVal> AND OR XOR SHL SHR ASHR LSHR
1854 %token <BinaryOpVal> SETLE SETGE SETLT SETGT SETEQ SETNE // Binary Comparators
1855 %token <OtherOpVal> ICMP FCMP
1857 // Memory Instructions
1858 %token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
1861 %token <OtherOpVal> PHI_TOK SELECT VAARG
1862 %token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
1863 %token VAARG_old VANEXT_old //OBSOLETE
1865 // Support for ICmp/FCmp Predicates, which is 1.9++ but not 2.0
1866 %type <IPred> IPredicates
1867 %type <FPred> FPredicates
1868 %token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE
1869 %token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE
1871 %token <CastOpVal> CAST TRUNC ZEXT SEXT FPTRUNC FPEXT FPTOUI FPTOSI
1872 %token <CastOpVal> UITOFP SITOFP PTRTOINT INTTOPTR BITCAST
1873 %type <CastOpVal> CastOps
1879 // Handle constant integer size restriction and conversion...
1884 if ($1 > (uint32_t)INT32_MAX) // Outside of my range!
1885 error("Value too large for type");
1891 : ESINT64VAL // These have same type and can't cause problems...
1893 if ($1 > (uint64_t)INT64_MAX) // Outside of my range!
1894 error("Value too large for type");
1898 // Operations that are notably excluded from this list include:
1899 // RET, BR, & SWITCH because they end basic blocks and are treated specially.
1902 : ADD | SUB | MUL | DIV | UDIV | SDIV | FDIV | REM | UREM | SREM | FREM
1910 : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE
1914 : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; }
1915 | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; }
1916 | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; }
1917 | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; }
1918 | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; }
1922 : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; }
1923 | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; }
1924 | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; }
1925 | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; }
1926 | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; }
1927 | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; }
1928 | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; }
1929 | TRUETOK { $$ = FCmpInst::FCMP_TRUE; }
1930 | FALSETOK { $$ = FCmpInst::FCMP_FALSE; }
1933 : SHL | SHR | ASHR | LSHR
1937 : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | FPTOUI | FPTOSI
1938 | UITOFP | SITOFP | PTRTOINT | INTTOPTR | BITCAST | CAST
1941 // These are some types that allow classification if we only want a particular
1942 // thing... for example, only a signed, unsigned, or integral type.
1944 : LONG | INT | SHORT | SBYTE
1948 : ULONG | UINT | USHORT | UBYTE
1952 : SIntType | UIntType
1959 // OptAssign - Value producing statements have an optional assignment component
1969 : INTERNAL { $$ = GlobalValue::InternalLinkage; }
1970 | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; }
1971 | WEAK { $$ = GlobalValue::WeakLinkage; }
1972 | APPENDING { $$ = GlobalValue::AppendingLinkage; }
1973 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
1974 | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; }
1975 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
1976 | /*empty*/ { $$ = GlobalValue::ExternalLinkage; }
1980 : /*empty*/ { $$ = OldCallingConv::C; }
1981 | CCC_TOK { $$ = OldCallingConv::C; }
1982 | CSRETCC_TOK { $$ = OldCallingConv::CSRet; }
1983 | FASTCC_TOK { $$ = OldCallingConv::Fast; }
1984 | COLDCC_TOK { $$ = OldCallingConv::Cold; }
1985 | X86_STDCALLCC_TOK { $$ = OldCallingConv::X86_StdCall; }
1986 | X86_FASTCALLCC_TOK { $$ = OldCallingConv::X86_FastCall; }
1987 | CC_TOK EUINT64VAL {
1988 if ((unsigned)$2 != $2)
1989 error("Calling conv too large");
1994 // OptAlign/OptCAlign - An optional alignment, and an optional alignment with
1995 // a comma before it.
1997 : /*empty*/ { $$ = 0; }
1998 | ALIGN EUINT64VAL {
2000 if ($$ != 0 && !isPowerOf2_32($$))
2001 error("Alignment must be a power of two");
2006 : /*empty*/ { $$ = 0; }
2007 | ',' ALIGN EUINT64VAL {
2009 if ($$ != 0 && !isPowerOf2_32($$))
2010 error("Alignment must be a power of two");
2015 : SECTION STRINGCONSTANT {
2016 for (unsigned i = 0, e = strlen($2); i != e; ++i)
2017 if ($2[i] == '"' || $2[i] == '\\')
2018 error("Invalid character in section name");
2024 : /*empty*/ { $$ = 0; }
2025 | SectionString { $$ = $1; }
2028 // GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
2029 // is set to be the global we are processing.
2033 | ',' GlobalVarAttribute GlobalVarAttributes {}
2038 CurGV->setSection($1);
2041 | ALIGN EUINT64VAL {
2042 if ($2 != 0 && !isPowerOf2_32($2))
2043 error("Alignment must be a power of two");
2044 CurGV->setAlignment($2);
2049 //===----------------------------------------------------------------------===//
2050 // Types includes all predefined types... except void, because it can only be
2051 // used in specific contexts (function returning void for example). To have
2052 // access to it, a user must explicitly use TypesV.
2055 // TypesV includes all of 'Types', but it also includes the void type.
2059 $$.PAT = new PATypeHolder($1.T);
2060 $$.S.makeSignless();
2067 $$.PAT = new PATypeHolder($1.T);
2068 $$.S.makeSignless();
2074 if (!UpRefs.empty())
2075 error("Invalid upreference in type: " + (*$1.PAT)->getDescription());
2081 : BOOL | SBYTE | UBYTE | SHORT | USHORT | INT | UINT
2082 | LONG | ULONG | FLOAT | DOUBLE | LABEL
2085 // Derived types are added later...
2088 $$.PAT = new PATypeHolder($1.T);
2092 $$.PAT = new PATypeHolder(OpaqueType::get());
2093 $$.S.makeSignless();
2095 | SymbolicValueRef { // Named types are also simple types...
2096 $$.S.copy(getTypeSign($1));
2097 const Type* tmp = getType($1);
2098 $$.PAT = new PATypeHolder(tmp);
2100 | '\\' EUINT64VAL { // Type UpReference
2101 if ($2 > (uint64_t)~0U)
2102 error("Value out of range");
2103 OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
2104 UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
2105 $$.PAT = new PATypeHolder(OT);
2106 $$.S.makeSignless();
2107 UR_OUT("New Upreference!\n");
2109 | UpRTypesV '(' ArgTypeListI ')' { // Function derived type?
2110 $$.S.makeComposite($1.S);
2111 std::vector<const Type*> Params;
2112 for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
2113 E = $3->end(); I != E; ++I) {
2114 Params.push_back(I->PAT->get());
2117 bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
2118 if (isVarArg) Params.pop_back();
2120 const FunctionType *FTy =
2121 FunctionType::get($1.PAT->get(), Params, isVarArg, 0);
2123 $$.PAT = new PATypeHolder( HandleUpRefs(FTy, $$.S) );
2124 delete $1.PAT; // Delete the return type handle
2125 delete $3; // Delete the argument list
2127 | '[' EUINT64VAL 'x' UpRTypes ']' { // Sized array type?
2128 $$.S.makeComposite($4.S);
2129 $$.PAT = new PATypeHolder(HandleUpRefs(ArrayType::get($4.PAT->get(),
2130 (unsigned)$2), $$.S));
2133 | '<' EUINT64VAL 'x' UpRTypes '>' { // Vector type?
2134 const llvm::Type* ElemTy = $4.PAT->get();
2135 if ((unsigned)$2 != $2)
2136 error("Unsigned result not equal to signed result");
2137 if (!(ElemTy->isInteger() || ElemTy->isFloatingPoint()))
2138 error("Elements of a VectorType must be integer or floating point");
2139 if (!isPowerOf2_32($2))
2140 error("VectorType length should be a power of 2");
2141 $$.S.makeComposite($4.S);
2142 $$.PAT = new PATypeHolder(HandleUpRefs(VectorType::get(ElemTy,
2143 (unsigned)$2), $$.S));
2146 | '{' TypeListI '}' { // Structure type?
2147 std::vector<const Type*> Elements;
2148 $$.S.makeComposite();
2149 for (std::list<llvm::PATypeInfo>::iterator I = $2->begin(),
2150 E = $2->end(); I != E; ++I) {
2151 Elements.push_back(I->PAT->get());
2154 $$.PAT = new PATypeHolder(HandleUpRefs(StructType::get(Elements), $$.S));
2157 | '{' '}' { // Empty structure type?
2158 $$.PAT = new PATypeHolder(StructType::get(std::vector<const Type*>()));
2159 $$.S.makeComposite();
2161 | '<' '{' TypeListI '}' '>' { // Packed Structure type?
2162 $$.S.makeComposite();
2163 std::vector<const Type*> Elements;
2164 for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
2165 E = $3->end(); I != E; ++I) {
2166 Elements.push_back(I->PAT->get());
2170 $$.PAT = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true),
2174 | '<' '{' '}' '>' { // Empty packed structure type?
2175 $$.PAT = new PATypeHolder(StructType::get(std::vector<const Type*>(),true));
2176 $$.S.makeComposite();
2178 | UpRTypes '*' { // Pointer type?
2179 if ($1.PAT->get() == Type::LabelTy)
2180 error("Cannot form a pointer to a basic block");
2181 $$.S.makeComposite($1.S);
2182 $$.PAT = new PATypeHolder(HandleUpRefs(PointerType::get($1.PAT->get()),
2188 // TypeList - Used for struct declarations and as a basis for function type
2189 // declaration type lists
2193 $$ = new std::list<PATypeInfo>();
2196 | TypeListI ',' UpRTypes {
2197 ($$=$1)->push_back($3);
2201 // ArgTypeList - List of types for a function type declaration...
2204 | TypeListI ',' DOTDOTDOT {
2206 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2207 VoidTI.S.makeSignless();
2208 ($$=$1)->push_back(VoidTI);
2211 $$ = new std::list<PATypeInfo>();
2213 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2214 VoidTI.S.makeSignless();
2215 $$->push_back(VoidTI);
2218 $$ = new std::list<PATypeInfo>();
2222 // ConstVal - The various declarations that go into the constant pool. This
2223 // production is used ONLY to represent constants that show up AFTER a 'const',
2224 // 'constant' or 'global' token at global scope. Constants that can be inlined
2225 // into other expressions (such as integers and constexprs) are handled by the
2226 // ResolvedVal, ValueRef and ConstValueRef productions.
2229 : Types '[' ConstVector ']' { // Nonempty unsized arr
2230 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2232 error("Cannot make array constant with type: '" +
2233 $1.PAT->get()->getDescription() + "'");
2234 const Type *ETy = ATy->getElementType();
2235 int NumElements = ATy->getNumElements();
2237 // Verify that we have the correct size...
2238 if (NumElements != -1 && NumElements != (int)$3->size())
2239 error("Type mismatch: constant sized array initialized with " +
2240 utostr($3->size()) + " arguments, but has size of " +
2241 itostr(NumElements) + "");
2243 // Verify all elements are correct type!
2244 std::vector<Constant*> Elems;
2245 for (unsigned i = 0; i < $3->size(); i++) {
2246 Constant *C = (*$3)[i].C;
2247 const Type* ValTy = C->getType();
2249 error("Element #" + utostr(i) + " is not of type '" +
2250 ETy->getDescription() +"' as required!\nIt is of type '"+
2251 ValTy->getDescription() + "'");
2254 $$.C = ConstantArray::get(ATy, Elems);
2260 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2262 error("Cannot make array constant with type: '" +
2263 $1.PAT->get()->getDescription() + "'");
2264 int NumElements = ATy->getNumElements();
2265 if (NumElements != -1 && NumElements != 0)
2266 error("Type mismatch: constant sized array initialized with 0"
2267 " arguments, but has size of " + itostr(NumElements) +"");
2268 $$.C = ConstantArray::get(ATy, std::vector<Constant*>());
2272 | Types 'c' STRINGCONSTANT {
2273 const ArrayType *ATy = dyn_cast<ArrayType>($1.PAT->get());
2275 error("Cannot make array constant with type: '" +
2276 $1.PAT->get()->getDescription() + "'");
2277 int NumElements = ATy->getNumElements();
2278 const Type *ETy = dyn_cast<IntegerType>(ATy->getElementType());
2279 if (!ETy || cast<IntegerType>(ETy)->getBitWidth() != 8)
2280 error("String arrays require type i8, not '" + ETy->getDescription() +
2282 char *EndStr = UnEscapeLexed($3, true);
2283 if (NumElements != -1 && NumElements != (EndStr-$3))
2284 error("Can't build string constant of size " +
2285 itostr((int)(EndStr-$3)) + " when array has size " +
2286 itostr(NumElements) + "");
2287 std::vector<Constant*> Vals;
2288 for (char *C = (char *)$3; C != (char *)EndStr; ++C)
2289 Vals.push_back(ConstantInt::get(ETy, *C));
2291 $$.C = ConstantArray::get(ATy, Vals);
2295 | Types '<' ConstVector '>' { // Nonempty unsized arr
2296 const VectorType *PTy = dyn_cast<VectorType>($1.PAT->get());
2298 error("Cannot make packed constant with type: '" +
2299 $1.PAT->get()->getDescription() + "'");
2300 const Type *ETy = PTy->getElementType();
2301 int NumElements = PTy->getNumElements();
2302 // Verify that we have the correct size...
2303 if (NumElements != -1 && NumElements != (int)$3->size())
2304 error("Type mismatch: constant sized packed initialized with " +
2305 utostr($3->size()) + " arguments, but has size of " +
2306 itostr(NumElements) + "");
2307 // Verify all elements are correct type!
2308 std::vector<Constant*> Elems;
2309 for (unsigned i = 0; i < $3->size(); i++) {
2310 Constant *C = (*$3)[i].C;
2311 const Type* ValTy = C->getType();
2313 error("Element #" + utostr(i) + " is not of type '" +
2314 ETy->getDescription() +"' as required!\nIt is of type '"+
2315 ValTy->getDescription() + "'");
2318 $$.C = ConstantVector::get(PTy, Elems);
2323 | Types '{' ConstVector '}' {
2324 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2326 error("Cannot make struct constant with type: '" +
2327 $1.PAT->get()->getDescription() + "'");
2328 if ($3->size() != STy->getNumContainedTypes())
2329 error("Illegal number of initializers for structure type");
2331 // Check to ensure that constants are compatible with the type initializer!
2332 std::vector<Constant*> Fields;
2333 for (unsigned i = 0, e = $3->size(); i != e; ++i) {
2334 Constant *C = (*$3)[i].C;
2335 if (C->getType() != STy->getElementType(i))
2336 error("Expected type '" + STy->getElementType(i)->getDescription() +
2337 "' for element #" + utostr(i) + " of structure initializer");
2338 Fields.push_back(C);
2340 $$.C = ConstantStruct::get(STy, Fields);
2346 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2348 error("Cannot make struct constant with type: '" +
2349 $1.PAT->get()->getDescription() + "'");
2350 if (STy->getNumContainedTypes() != 0)
2351 error("Illegal number of initializers for structure type");
2352 $$.C = ConstantStruct::get(STy, std::vector<Constant*>());
2356 | Types '<' '{' ConstVector '}' '>' {
2357 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2359 error("Cannot make packed struct constant with type: '" +
2360 $1.PAT->get()->getDescription() + "'");
2361 if ($4->size() != STy->getNumContainedTypes())
2362 error("Illegal number of initializers for packed structure type");
2364 // Check to ensure that constants are compatible with the type initializer!
2365 std::vector<Constant*> Fields;
2366 for (unsigned i = 0, e = $4->size(); i != e; ++i) {
2367 Constant *C = (*$4)[i].C;
2368 if (C->getType() != STy->getElementType(i))
2369 error("Expected type '" + STy->getElementType(i)->getDescription() +
2370 "' for element #" + utostr(i) + " of packed struct initializer");
2371 Fields.push_back(C);
2373 $$.C = ConstantStruct::get(STy, Fields);
2378 | Types '<' '{' '}' '>' {
2379 const StructType *STy = dyn_cast<StructType>($1.PAT->get());
2381 error("Cannot make packed struct constant with type: '" +
2382 $1.PAT->get()->getDescription() + "'");
2383 if (STy->getNumContainedTypes() != 0)
2384 error("Illegal number of initializers for packed structure type");
2385 $$.C = ConstantStruct::get(STy, std::vector<Constant*>());
2390 const PointerType *PTy = dyn_cast<PointerType>($1.PAT->get());
2392 error("Cannot make null pointer constant with type: '" +
2393 $1.PAT->get()->getDescription() + "'");
2394 $$.C = ConstantPointerNull::get(PTy);
2399 $$.C = UndefValue::get($1.PAT->get());
2403 | Types SymbolicValueRef {
2404 const PointerType *Ty = dyn_cast<PointerType>($1.PAT->get());
2406 error("Global const reference must be a pointer type, not" +
2407 $1.PAT->get()->getDescription());
2409 // ConstExprs can exist in the body of a function, thus creating
2410 // GlobalValues whenever they refer to a variable. Because we are in
2411 // the context of a function, getExistingValue will search the functions
2412 // symbol table instead of the module symbol table for the global symbol,
2413 // which throws things all off. To get around this, we just tell
2414 // getExistingValue that we are at global scope here.
2416 Function *SavedCurFn = CurFun.CurrentFunction;
2417 CurFun.CurrentFunction = 0;
2419 Value *V = getExistingValue(Ty, $2);
2420 CurFun.CurrentFunction = SavedCurFn;
2422 // If this is an initializer for a constant pointer, which is referencing a
2423 // (currently) undefined variable, create a stub now that shall be replaced
2424 // in the future with the right type of variable.
2427 assert(isa<PointerType>(Ty) && "Globals may only be used as pointers");
2428 const PointerType *PT = cast<PointerType>(Ty);
2430 // First check to see if the forward references value is already created!
2431 PerModuleInfo::GlobalRefsType::iterator I =
2432 CurModule.GlobalRefs.find(std::make_pair(PT, $2));
2434 if (I != CurModule.GlobalRefs.end()) {
2435 V = I->second; // Placeholder already exists, use it...
2439 if ($2.Type == ValID::NameVal) Name = $2.Name;
2441 // Create the forward referenced global.
2443 if (const FunctionType *FTy =
2444 dyn_cast<FunctionType>(PT->getElementType())) {
2445 GV = new Function(FTy, GlobalValue::ExternalLinkage, Name,
2446 CurModule.CurrentModule);
2448 GV = new GlobalVariable(PT->getElementType(), false,
2449 GlobalValue::ExternalLinkage, 0,
2450 Name, CurModule.CurrentModule);
2453 // Keep track of the fact that we have a forward ref to recycle it
2454 CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
2458 $$.C = cast<GlobalValue>(V);
2460 delete $1.PAT; // Free the type handle
2463 if ($1.PAT->get() != $2.C->getType())
2464 error("Mismatched types for constant expression");
2469 | Types ZEROINITIALIZER {
2470 const Type *Ty = $1.PAT->get();
2471 if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
2472 error("Cannot create a null initialized value of this type");
2473 $$.C = Constant::getNullValue(Ty);
2477 | SIntType EINT64VAL { // integral constants
2478 const Type *Ty = $1.T;
2479 if (!ConstantInt::isValueValidForType(Ty, $2))
2480 error("Constant value doesn't fit in type");
2481 $$.C = ConstantInt::get(Ty, $2);
2484 | UIntType EUINT64VAL { // integral constants
2485 const Type *Ty = $1.T;
2486 if (!ConstantInt::isValueValidForType(Ty, $2))
2487 error("Constant value doesn't fit in type");
2488 $$.C = ConstantInt::get(Ty, $2);
2489 $$.S.makeUnsigned();
2491 | BOOL TRUETOK { // Boolean constants
2492 $$.C = ConstantInt::get(Type::Int1Ty, true);
2493 $$.S.makeUnsigned();
2495 | BOOL FALSETOK { // Boolean constants
2496 $$.C = ConstantInt::get(Type::Int1Ty, false);
2497 $$.S.makeUnsigned();
2499 | FPType FPVAL { // Float & Double constants
2500 if (!ConstantFP::isValueValidForType($1.T, $2))
2501 error("Floating point constant invalid for type");
2502 $$.C = ConstantFP::get($1.T, $2);
2503 $$.S.makeSignless();
2508 : CastOps '(' ConstVal TO Types ')' {
2509 const Type* SrcTy = $3.C->getType();
2510 const Type* DstTy = $5.PAT->get();
2511 Signedness SrcSign($3.S);
2512 Signedness DstSign($5.S);
2513 if (!SrcTy->isFirstClassType())
2514 error("cast constant expression from a non-primitive type: '" +
2515 SrcTy->getDescription() + "'");
2516 if (!DstTy->isFirstClassType())
2517 error("cast constant expression to a non-primitive type: '" +
2518 DstTy->getDescription() + "'");
2519 $$.C = cast<Constant>(getCast($1, $3.C, SrcSign, DstTy, DstSign));
2523 | GETELEMENTPTR '(' ConstVal IndexList ')' {
2524 const Type *Ty = $3.C->getType();
2525 if (!isa<PointerType>(Ty))
2526 error("GetElementPtr requires a pointer operand");
2528 std::vector<Value*> VIndices;
2529 std::vector<Constant*> CIndices;
2530 upgradeGEPIndices($3.C->getType(), $4, VIndices, &CIndices);
2533 $$.C = ConstantExpr::getGetElementPtr($3.C, &CIndices[0], CIndices.size());
2534 $$.S.copy(getElementSign($3, CIndices));
2536 | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2537 if (!$3.C->getType()->isInteger() ||
2538 cast<IntegerType>($3.C->getType())->getBitWidth() != 1)
2539 error("Select condition must be bool type");
2540 if ($5.C->getType() != $7.C->getType())
2541 error("Select operand types must match");
2542 $$.C = ConstantExpr::getSelect($3.C, $5.C, $7.C);
2545 | ArithmeticOps '(' ConstVal ',' ConstVal ')' {
2546 const Type *Ty = $3.C->getType();
2547 if (Ty != $5.C->getType())
2548 error("Binary operator types must match");
2549 // First, make sure we're dealing with the right opcode by upgrading from
2550 // obsolete versions.
2551 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $3.S);
2553 // HACK: llvm 1.3 and earlier used to emit invalid pointer constant exprs.
2554 // To retain backward compatibility with these early compilers, we emit a
2555 // cast to the appropriate integer type automatically if we are in the
2556 // broken case. See PR424 for more information.
2557 if (!isa<PointerType>(Ty)) {
2558 $$.C = ConstantExpr::get(Opcode, $3.C, $5.C);
2560 const Type *IntPtrTy = 0;
2561 switch (CurModule.CurrentModule->getPointerSize()) {
2562 case Module::Pointer32: IntPtrTy = Type::Int32Ty; break;
2563 case Module::Pointer64: IntPtrTy = Type::Int64Ty; break;
2564 default: error("invalid pointer binary constant expr");
2566 $$.C = ConstantExpr::get(Opcode,
2567 ConstantExpr::getCast(Instruction::PtrToInt, $3.C, IntPtrTy),
2568 ConstantExpr::getCast(Instruction::PtrToInt, $5.C, IntPtrTy));
2569 $$.C = ConstantExpr::getCast(Instruction::IntToPtr, $$.C, Ty);
2573 | LogicalOps '(' ConstVal ',' ConstVal ')' {
2574 const Type* Ty = $3.C->getType();
2575 if (Ty != $5.C->getType())
2576 error("Logical operator types must match");
2577 if (!Ty->isInteger()) {
2578 if (!isa<VectorType>(Ty) ||
2579 !cast<VectorType>(Ty)->getElementType()->isInteger())
2580 error("Logical operator requires integer operands");
2582 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $3.S);
2583 $$.C = ConstantExpr::get(Opcode, $3.C, $5.C);
2586 | SetCondOps '(' ConstVal ',' ConstVal ')' {
2587 const Type* Ty = $3.C->getType();
2588 if (Ty != $5.C->getType())
2589 error("setcc operand types must match");
2590 unsigned short pred;
2591 Instruction::OtherOps Opcode = getCompareOp($1, pred, Ty, $3.S);
2592 $$.C = ConstantExpr::getCompare(Opcode, $3.C, $5.C);
2593 $$.S.makeUnsigned();
2595 | ICMP IPredicates '(' ConstVal ',' ConstVal ')' {
2596 if ($4.C->getType() != $6.C->getType())
2597 error("icmp operand types must match");
2598 $$.C = ConstantExpr::getCompare($2, $4.C, $6.C);
2599 $$.S.makeUnsigned();
2601 | FCMP FPredicates '(' ConstVal ',' ConstVal ')' {
2602 if ($4.C->getType() != $6.C->getType())
2603 error("fcmp operand types must match");
2604 $$.C = ConstantExpr::getCompare($2, $4.C, $6.C);
2605 $$.S.makeUnsigned();
2607 | ShiftOps '(' ConstVal ',' ConstVal ')' {
2608 if (!$5.C->getType()->isInteger() ||
2609 cast<IntegerType>($5.C->getType())->getBitWidth() != 8)
2610 error("Shift count for shift constant must be unsigned byte");
2611 const Type* Ty = $3.C->getType();
2612 if (!$3.C->getType()->isInteger())
2613 error("Shift constant expression requires integer operand");
2614 Constant *ShiftAmt = ConstantExpr::getZExt($5.C, Ty);
2615 $$.C = ConstantExpr::get(getBinaryOp($1, Ty, $3.S), $3.C, ShiftAmt);
2618 | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
2619 if (!ExtractElementInst::isValidOperands($3.C, $5.C))
2620 error("Invalid extractelement operands");
2621 $$.C = ConstantExpr::getExtractElement($3.C, $5.C);
2622 $$.S.copy($3.S.get(0));
2624 | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2625 if (!InsertElementInst::isValidOperands($3.C, $5.C, $7.C))
2626 error("Invalid insertelement operands");
2627 $$.C = ConstantExpr::getInsertElement($3.C, $5.C, $7.C);
2630 | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
2631 if (!ShuffleVectorInst::isValidOperands($3.C, $5.C, $7.C))
2632 error("Invalid shufflevector operands");
2633 $$.C = ConstantExpr::getShuffleVector($3.C, $5.C, $7.C);
2639 // ConstVector - A list of comma separated constants.
2641 : ConstVector ',' ConstVal { ($$ = $1)->push_back($3); }
2643 $$ = new std::vector<ConstInfo>();
2649 // GlobalType - Match either GLOBAL or CONSTANT for global declarations...
2651 : GLOBAL { $$ = false; }
2652 | CONSTANT { $$ = true; }
2656 //===----------------------------------------------------------------------===//
2657 // Rules to match Modules
2658 //===----------------------------------------------------------------------===//
2660 // Module rule: Capture the result of parsing the whole file into a result
2665 $$ = ParserResult = $1;
2666 CurModule.ModuleDone();
2670 // FunctionList - A list of functions, preceeded by a constant pool.
2673 : FunctionList Function { $$ = $1; CurFun.FunctionDone(); }
2674 | FunctionList FunctionProto { $$ = $1; }
2675 | FunctionList MODULE ASM_TOK AsmBlock { $$ = $1; }
2676 | FunctionList IMPLEMENTATION { $$ = $1; }
2678 $$ = CurModule.CurrentModule;
2679 // Emit an error if there are any unresolved types left.
2680 if (!CurModule.LateResolveTypes.empty()) {
2681 const ValID &DID = CurModule.LateResolveTypes.begin()->first;
2682 if (DID.Type == ValID::NameVal) {
2683 error("Reference to an undefined type: '"+DID.getName() + "'");
2685 error("Reference to an undefined type: #" + itostr(DID.Num));
2691 // ConstPool - Constants with optional names assigned to them.
2693 : ConstPool OptAssign TYPE TypesV {
2694 // Eagerly resolve types. This is not an optimization, this is a
2695 // requirement that is due to the fact that we could have this:
2697 // %list = type { %list * }
2698 // %list = type { %list * } ; repeated type decl
2700 // If types are not resolved eagerly, then the two types will not be
2701 // determined to be the same type!
2703 ResolveTypeTo($2, $4.PAT->get(), $4.S);
2705 if (!setTypeName($4, $2) && !$2) {
2706 // If this is a numbered type that is not a redefinition, add it to the
2708 CurModule.Types.push_back($4.PAT->get());
2709 CurModule.TypeSigns.push_back($4.S);
2713 | ConstPool FunctionProto { // Function prototypes can be in const pool
2715 | ConstPool MODULE ASM_TOK AsmBlock { // Asm blocks can be in the const pool
2717 | ConstPool OptAssign OptLinkage GlobalType ConstVal {
2719 error("Global value initializer is not a constant");
2720 CurGV = ParseGlobalVariable($2, $3, $4, $5.C->getType(), $5.C, $5.S);
2721 } GlobalVarAttributes {
2724 | ConstPool OptAssign EXTERNAL GlobalType Types {
2725 const Type *Ty = $5.PAT->get();
2726 CurGV = ParseGlobalVariable($2, GlobalValue::ExternalLinkage, $4, Ty, 0,
2729 } GlobalVarAttributes {
2732 | ConstPool OptAssign DLLIMPORT GlobalType Types {
2733 const Type *Ty = $5.PAT->get();
2734 CurGV = ParseGlobalVariable($2, GlobalValue::DLLImportLinkage, $4, Ty, 0,
2737 } GlobalVarAttributes {
2740 | ConstPool OptAssign EXTERN_WEAK GlobalType Types {
2741 const Type *Ty = $5.PAT->get();
2743 ParseGlobalVariable($2, GlobalValue::ExternalWeakLinkage, $4, Ty, 0,
2746 } GlobalVarAttributes {
2749 | ConstPool TARGET TargetDefinition {
2751 | ConstPool DEPLIBS '=' LibrariesDefinition {
2753 | /* empty: end of list */ {
2759 const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
2760 char *EndStr = UnEscapeLexed($1, true);
2761 std::string NewAsm($1, EndStr);
2764 if (AsmSoFar.empty())
2765 CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
2767 CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
2772 : BIG { $$ = Module::BigEndian; }
2773 | LITTLE { $$ = Module::LittleEndian; }
2777 : ENDIAN '=' BigOrLittle {
2778 CurModule.setEndianness($3);
2780 | POINTERSIZE '=' EUINT64VAL {
2782 CurModule.setPointerSize(Module::Pointer32);
2784 CurModule.setPointerSize(Module::Pointer64);
2786 error("Invalid pointer size: '" + utostr($3) + "'");
2788 | TRIPLE '=' STRINGCONSTANT {
2789 CurModule.CurrentModule->setTargetTriple($3);
2792 | DATALAYOUT '=' STRINGCONSTANT {
2793 CurModule.CurrentModule->setDataLayout($3);
2803 : LibList ',' STRINGCONSTANT {
2804 CurModule.CurrentModule->addLibrary($3);
2808 CurModule.CurrentModule->addLibrary($1);
2811 | /* empty: end of list */ { }
2814 //===----------------------------------------------------------------------===//
2815 // Rules to match Function Headers
2816 //===----------------------------------------------------------------------===//
2819 : VAR_ID | STRINGCONSTANT
2824 | /*empty*/ { $$ = 0; }
2829 if ($1.PAT->get() == Type::VoidTy)
2830 error("void typed arguments are invalid");
2831 $$ = new std::pair<PATypeInfo, char*>($1, $2);
2836 : ArgListH ',' ArgVal {
2842 $$ = new std::vector<std::pair<PATypeInfo,char*> >();
2849 : ArgListH { $$ = $1; }
2850 | ArgListH ',' DOTDOTDOT {
2853 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2854 VoidTI.S.makeSignless();
2855 $$->push_back(std::pair<PATypeInfo, char*>(VoidTI, 0));
2858 $$ = new std::vector<std::pair<PATypeInfo,char*> >();
2860 VoidTI.PAT = new PATypeHolder(Type::VoidTy);
2861 VoidTI.S.makeSignless();
2862 $$->push_back(std::pair<PATypeInfo, char*>(VoidTI, 0));
2864 | /* empty */ { $$ = 0; }
2868 : OptCallingConv TypesV Name '(' ArgList ')' OptSection OptAlign {
2870 std::string FunctionName($3);
2871 free($3); // Free strdup'd memory!
2873 const Type* RetTy = $2.PAT->get();
2875 if (!RetTy->isFirstClassType() && RetTy != Type::VoidTy)
2876 error("LLVM functions cannot return aggregate types");
2879 FTySign.makeComposite($2.S);
2880 std::vector<const Type*> ParamTyList;
2882 // In LLVM 2.0 the signatures of three varargs intrinsics changed to take
2883 // i8*. We check here for those names and override the parameter list
2884 // types to ensure the prototype is correct.
2885 if (FunctionName == "llvm.va_start" || FunctionName == "llvm.va_end") {
2886 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2887 } else if (FunctionName == "llvm.va_copy") {
2888 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2889 ParamTyList.push_back(PointerType::get(Type::Int8Ty));
2890 } else if ($5) { // If there are arguments...
2891 for (std::vector<std::pair<PATypeInfo,char*> >::iterator
2892 I = $5->begin(), E = $5->end(); I != E; ++I) {
2893 const Type *Ty = I->first.PAT->get();
2894 ParamTyList.push_back(Ty);
2895 FTySign.add(I->first.S);
2899 bool isVarArg = ParamTyList.size() && ParamTyList.back() == Type::VoidTy;
2901 ParamTyList.pop_back();
2903 // Convert the CSRet calling convention into the corresponding parameter
2905 ParamAttrsList *ParamAttrs = 0;
2906 if ($1 == OldCallingConv::CSRet) {
2907 ParamAttrs = new ParamAttrsList();
2908 ParamAttrs->addAttributes(0, ParamAttr::None); // result
2909 ParamAttrs->addAttributes(1, ParamAttr::StructRet); // first arg
2912 const FunctionType *FT =
2913 FunctionType::get(RetTy, ParamTyList, isVarArg, ParamAttrs);
2914 const PointerType *PFT = PointerType::get(FT);
2918 if (!FunctionName.empty()) {
2919 ID = ValID::create((char*)FunctionName.c_str());
2921 ID = ValID::create((int)CurModule.Values[PFT].size());
2923 ID.S.makeComposite(FTySign);
2926 Module* M = CurModule.CurrentModule;
2928 // See if this function was forward referenced. If so, recycle the object.
2929 if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
2930 // Move the function to the end of the list, from whereever it was
2931 // previously inserted.
2932 Fn = cast<Function>(FWRef);
2933 M->getFunctionList().remove(Fn);
2934 M->getFunctionList().push_back(Fn);
2935 } else if (!FunctionName.empty()) {
2936 GlobalValue *Conflict = M->getFunction(FunctionName);
2938 Conflict = M->getNamedGlobal(FunctionName);
2939 if (Conflict && PFT == Conflict->getType()) {
2940 if (!CurFun.isDeclare && !Conflict->isDeclaration()) {
2941 // We have two function definitions that conflict, same type, same
2942 // name. We should really check to make sure that this is the result
2943 // of integer type planes collapsing and generate an error if it is
2944 // not, but we'll just rename on the assumption that it is. However,
2945 // let's do it intelligently and rename the internal linkage one
2947 std::string NewName(makeNameUnique(FunctionName));
2948 if (Conflict->hasInternalLinkage()) {
2949 Conflict->setName(NewName);
2951 makeRenameMapKey(FunctionName, Conflict->getType(), ID.S);
2952 CurModule.RenameMap[Key] = NewName;
2953 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
2954 InsertValue(Fn, CurModule.Values);
2956 Fn = new Function(FT, CurFun.Linkage, NewName, M);
2957 InsertValue(Fn, CurModule.Values);
2959 makeRenameMapKey(FunctionName, PFT, ID.S);
2960 CurModule.RenameMap[Key] = NewName;
2963 // If they are not both definitions, then just use the function we
2964 // found since the types are the same.
2965 Fn = cast<Function>(Conflict);
2967 // Make sure to strip off any argument names so we can't get
2969 if (Fn->isDeclaration())
2970 for (Function::arg_iterator AI = Fn->arg_begin(),
2971 AE = Fn->arg_end(); AI != AE; ++AI)
2974 } else if (Conflict) {
2975 // We have two globals with the same name and different types.
2976 // Previously, this was permitted because the symbol table had
2977 // "type planes" and names only needed to be distinct within a
2978 // type plane. After PR411 was fixed, this is no loner the case.
2979 // To resolve this we must rename one of the two.
2980 if (Conflict->hasInternalLinkage()) {
2981 // We can safely rename the Conflict.
2983 makeRenameMapKey(Conflict->getName(), Conflict->getType(),
2984 CurModule.NamedValueSigns[Conflict->getName()]);
2985 Conflict->setName(makeNameUnique(Conflict->getName()));
2986 CurModule.RenameMap[Key] = Conflict->getName();
2987 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
2988 InsertValue(Fn, CurModule.Values);
2990 // We can't quietly rename either of these things, but we must
2991 // rename one of them. Only if the function's linkage is internal can
2992 // we forgo a warning message about the renamed function.
2993 std::string NewName = makeNameUnique(FunctionName);
2994 if (CurFun.Linkage != GlobalValue::InternalLinkage) {
2995 warning("Renaming function '" + FunctionName + "' as '" + NewName +
2996 "' may cause linkage errors");
2998 // Elect to rename the thing we're now defining.
2999 Fn = new Function(FT, CurFun.Linkage, NewName, M);
3000 InsertValue(Fn, CurModule.Values);
3001 RenameMapKey Key = makeRenameMapKey(FunctionName, PFT, ID.S);
3002 CurModule.RenameMap[Key] = NewName;
3005 // There's no conflict, just define the function
3006 Fn = new Function(FT, CurFun.Linkage, FunctionName, M);
3007 InsertValue(Fn, CurModule.Values);
3011 CurFun.FunctionStart(Fn);
3013 if (CurFun.isDeclare) {
3014 // If we have declaration, always overwrite linkage. This will allow us
3015 // to correctly handle cases, when pointer to function is passed as
3016 // argument to another function.
3017 Fn->setLinkage(CurFun.Linkage);
3019 Fn->setCallingConv(upgradeCallingConv($1));
3020 Fn->setAlignment($8);
3026 // Add all of the arguments we parsed to the function...
3027 if ($5) { // Is null if empty...
3028 if (isVarArg) { // Nuke the last entry
3029 assert($5->back().first.PAT->get() == Type::VoidTy &&
3030 $5->back().second == 0 && "Not a varargs marker");
3031 delete $5->back().first.PAT;
3032 $5->pop_back(); // Delete the last entry
3034 Function::arg_iterator ArgIt = Fn->arg_begin();
3035 Function::arg_iterator ArgEnd = Fn->arg_end();
3036 std::vector<std::pair<PATypeInfo,char*> >::iterator I = $5->begin();
3037 std::vector<std::pair<PATypeInfo,char*> >::iterator E = $5->end();
3038 for ( ; I != E && ArgIt != ArgEnd; ++I, ++ArgIt) {
3039 delete I->first.PAT; // Delete the typeholder...
3040 ValueInfo VI; VI.V = ArgIt; VI.S.copy(I->first.S);
3041 setValueName(VI, I->second); // Insert arg into symtab...
3044 delete $5; // We're now done with the argument list
3050 : BEGINTOK | '{' // Allow BEGIN or '{' to start a function
3054 : OptLinkage { CurFun.Linkage = $1; } FunctionHeaderH BEGIN {
3055 $$ = CurFun.CurrentFunction;
3057 // Make sure that we keep track of the linkage type even if there was a
3058 // previous "declare".
3064 : ENDTOK | '}' // Allow end of '}' to end a function
3068 : BasicBlockList END {
3073 : /*default*/ { $$ = GlobalValue::ExternalLinkage; }
3074 | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; }
3075 | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; }
3079 : DECLARE { CurFun.isDeclare = true; }
3080 FnDeclareLinkage { CurFun.Linkage = $3; } FunctionHeaderH {
3081 $$ = CurFun.CurrentFunction;
3082 CurFun.FunctionDone();
3087 //===----------------------------------------------------------------------===//
3088 // Rules to match Basic Blocks
3089 //===----------------------------------------------------------------------===//
3092 : /* empty */ { $$ = false; }
3093 | SIDEEFFECT { $$ = true; }
3097 // A reference to a direct constant
3098 : ESINT64VAL { $$ = ValID::create($1); }
3099 | EUINT64VAL { $$ = ValID::create($1); }
3100 | FPVAL { $$ = ValID::create($1); }
3102 $$ = ValID::create(ConstantInt::get(Type::Int1Ty, true));
3103 $$.S.makeUnsigned();
3106 $$ = ValID::create(ConstantInt::get(Type::Int1Ty, false));
3107 $$.S.makeUnsigned();
3109 | NULL_TOK { $$ = ValID::createNull(); }
3110 | UNDEF { $$ = ValID::createUndef(); }
3111 | ZEROINITIALIZER { $$ = ValID::createZeroInit(); }
3112 | '<' ConstVector '>' { // Nonempty unsized packed vector
3113 const Type *ETy = (*$2)[0].C->getType();
3114 int NumElements = $2->size();
3115 VectorType* pt = VectorType::get(ETy, NumElements);
3116 $$.S.makeComposite((*$2)[0].S);
3117 PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt, $$.S));
3119 // Verify all elements are correct type!
3120 std::vector<Constant*> Elems;
3121 for (unsigned i = 0; i < $2->size(); i++) {
3122 Constant *C = (*$2)[i].C;
3123 const Type *CTy = C->getType();
3125 error("Element #" + utostr(i) + " is not of type '" +
3126 ETy->getDescription() +"' as required!\nIt is of type '" +
3127 CTy->getDescription() + "'");
3130 $$ = ValID::create(ConstantVector::get(pt, Elems));
3131 delete PTy; delete $2;
3134 $$ = ValID::create($1.C);
3137 | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
3138 char *End = UnEscapeLexed($3, true);
3139 std::string AsmStr = std::string($3, End);
3140 End = UnEscapeLexed($5, true);
3141 std::string Constraints = std::string($5, End);
3142 $$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
3148 // SymbolicValueRef - Reference to one of two ways of symbolically refering to // another value.
3151 : INTVAL { $$ = ValID::create($1); $$.S.makeSignless(); }
3152 | Name { $$ = ValID::create($1); $$.S.makeSignless(); }
3155 // ValueRef - A reference to a definition... either constant or symbolic
3157 : SymbolicValueRef | ConstValueRef
3161 // ResolvedVal - a <type> <value> pair. This is used only in cases where the
3162 // type immediately preceeds the value reference, and allows complex constant
3163 // pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
3166 const Type *Ty = $1.PAT->get();
3168 $$.V = getVal(Ty, $2);
3175 : BasicBlockList BasicBlock {
3178 | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
3183 // Basic blocks are terminated by branching instructions:
3184 // br, br/cc, switch, ret
3187 : InstructionList OptAssign BBTerminatorInst {
3188 ValueInfo VI; VI.V = $3.TI; VI.S.copy($3.S);
3189 setValueName(VI, $2);
3191 $1->getInstList().push_back($3.TI);
3198 : InstructionList Inst {
3200 $1->getInstList().push_back($2.I);
3204 $$ = CurBB = getBBVal(ValID::create((int)CurFun.NextBBNum++),true);
3205 // Make sure to move the basic block to the correct location in the
3206 // function, instead of leaving it inserted wherever it was first
3208 Function::BasicBlockListType &BBL =
3209 CurFun.CurrentFunction->getBasicBlockList();
3210 BBL.splice(BBL.end(), BBL, $$);
3213 $$ = CurBB = getBBVal(ValID::create($1), true);
3214 // Make sure to move the basic block to the correct location in the
3215 // function, instead of leaving it inserted wherever it was first
3217 Function::BasicBlockListType &BBL =
3218 CurFun.CurrentFunction->getBasicBlockList();
3219 BBL.splice(BBL.end(), BBL, $$);
3223 Unwind : UNWIND | EXCEPT;
3226 : RET ResolvedVal { // Return with a result...
3227 $$.TI = new ReturnInst($2.V);
3228 $$.S.makeSignless();
3230 | RET VOID { // Return with no result...
3231 $$.TI = new ReturnInst();
3232 $$.S.makeSignless();
3234 | BR LABEL ValueRef { // Unconditional Branch...
3235 BasicBlock* tmpBB = getBBVal($3);
3236 $$.TI = new BranchInst(tmpBB);
3237 $$.S.makeSignless();
3238 } // Conditional Branch...
3239 | BR BOOL ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
3240 $6.S.makeSignless();
3241 $9.S.makeSignless();
3242 BasicBlock* tmpBBA = getBBVal($6);
3243 BasicBlock* tmpBBB = getBBVal($9);
3244 $3.S.makeUnsigned();
3245 Value* tmpVal = getVal(Type::Int1Ty, $3);
3246 $$.TI = new BranchInst(tmpBBA, tmpBBB, tmpVal);
3247 $$.S.makeSignless();
3249 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
3251 Value* tmpVal = getVal($2.T, $3);
3252 $6.S.makeSignless();
3253 BasicBlock* tmpBB = getBBVal($6);
3254 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
3256 $$.S.makeSignless();
3257 std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
3259 for (; I != E; ++I) {
3260 if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
3261 S->addCase(CI, I->second);
3263 error("Switch case is constant, but not a simple integer");
3267 | SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
3269 Value* tmpVal = getVal($2.T, $3);
3270 $6.S.makeSignless();
3271 BasicBlock* tmpBB = getBBVal($6);
3272 SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
3274 $$.S.makeSignless();
3276 | INVOKE OptCallingConv TypesV ValueRef '(' ValueRefListE ')'
3277 TO LABEL ValueRef Unwind LABEL ValueRef {
3278 const PointerType *PFTy;
3279 const FunctionType *Ty;
3282 if (!(PFTy = dyn_cast<PointerType>($3.PAT->get())) ||
3283 !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3284 // Pull out the types of all of the arguments...
3285 std::vector<const Type*> ParamTypes;
3286 FTySign.makeComposite($3.S);
3288 for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
3290 ParamTypes.push_back((*I).V->getType());
3294 ParamAttrsList *ParamAttrs = 0;
3295 if ($2 == OldCallingConv::CSRet) {
3296 ParamAttrs = new ParamAttrsList();
3297 ParamAttrs->addAttributes(0, ParamAttr::None); // Function result
3298 ParamAttrs->addAttributes(1, ParamAttr::StructRet); // first param
3300 bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
3301 if (isVarArg) ParamTypes.pop_back();
3302 Ty = FunctionType::get($3.PAT->get(), ParamTypes, isVarArg, ParamAttrs);
3303 PFTy = PointerType::get(Ty);
3307 // Get the signedness of the result type. $3 is the pointer to the
3308 // function type so we get the 0th element to extract the function type,
3309 // and then the 0th element again to get the result type.
3310 $$.S.copy($3.S.get(0).get(0));
3313 $4.S.makeComposite(FTySign);
3314 Value *V = getVal(PFTy, $4); // Get the function we're calling...
3315 BasicBlock *Normal = getBBVal($10);
3316 BasicBlock *Except = getBBVal($13);
3318 // Create the call node...
3319 if (!$6) { // Has no arguments?
3320 $$.TI = new InvokeInst(V, Normal, Except, 0, 0);
3321 } else { // Has arguments?
3322 // Loop through FunctionType's arguments and ensure they are specified
3325 FunctionType::param_iterator I = Ty->param_begin();
3326 FunctionType::param_iterator E = Ty->param_end();
3327 std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
3329 std::vector<Value*> Args;
3330 for (; ArgI != ArgE && I != E; ++ArgI, ++I) {
3331 if ((*ArgI).V->getType() != *I)
3332 error("Parameter " +(*ArgI).V->getName()+ " is not of type '" +
3333 (*I)->getDescription() + "'");
3334 Args.push_back((*ArgI).V);
3337 if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
3338 error("Invalid number of parameters detected");
3340 $$.TI = new InvokeInst(V, Normal, Except, &Args[0], Args.size());
3342 cast<InvokeInst>($$.TI)->setCallingConv(upgradeCallingConv($2));
3347 $$.TI = new UnwindInst();
3348 $$.S.makeSignless();
3351 $$.TI = new UnreachableInst();
3352 $$.S.makeSignless();
3357 : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
3360 Constant *V = cast<Constant>(getExistingValue($2.T, $3));
3363 error("May only switch on a constant pool value");
3365 $6.S.makeSignless();
3366 BasicBlock* tmpBB = getBBVal($6);
3367 $$->push_back(std::make_pair(V, tmpBB));
3369 | IntType ConstValueRef ',' LABEL ValueRef {
3370 $$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
3372 Constant *V = cast<Constant>(getExistingValue($1.T, $2));
3375 error("May only switch on a constant pool value");
3377 $5.S.makeSignless();
3378 BasicBlock* tmpBB = getBBVal($5);
3379 $$->push_back(std::make_pair(V, tmpBB));
3384 : OptAssign InstVal {
3387 if (BitCastInst *BCI = dyn_cast<BitCastInst>($2.I))
3388 if (BCI->getSrcTy() == BCI->getDestTy() &&
3389 BCI->getOperand(0)->getName() == $1)
3390 // This is a useless bit cast causing a name redefinition. It is
3391 // a bit cast from a type to the same type of an operand with the
3392 // same name as the name we would give this instruction. Since this
3393 // instruction results in no code generation, it is safe to omit
3394 // the instruction. This situation can occur because of collapsed
3395 // type planes. For example:
3396 // %X = add int %Y, %Z
3397 // %X = cast int %Y to uint
3398 // After upgrade, this looks like:
3399 // %X = add i32 %Y, %Z
3400 // %X = bitcast i32 to i32
3401 // The bitcast is clearly useless so we omit it.
3405 $$.S.makeSignless();
3407 ValueInfo VI; VI.V = $2.I; VI.S.copy($2.S);
3408 setValueName(VI, $1);
3414 PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
3415 $$.P = new std::list<std::pair<Value*, BasicBlock*> >();
3418 Value* tmpVal = getVal($1.PAT->get(), $3);
3419 $5.S.makeSignless();
3420 BasicBlock* tmpBB = getBBVal($5);
3421 $$.P->push_back(std::make_pair(tmpVal, tmpBB));
3424 | PHIList ',' '[' ValueRef ',' ValueRef ']' {
3427 Value* tmpVal = getVal($1.P->front().first->getType(), $4);
3428 $6.S.makeSignless();
3429 BasicBlock* tmpBB = getBBVal($6);
3430 $1.P->push_back(std::make_pair(tmpVal, tmpBB));
3434 ValueRefList : ResolvedVal { // Used for call statements, and memory insts...
3435 $$ = new std::vector<ValueInfo>();
3438 | ValueRefList ',' ResolvedVal {
3443 // ValueRefListE - Just like ValueRefList, except that it may also be empty!
3446 | /*empty*/ { $$ = 0; }
3459 : ArithmeticOps Types ValueRef ',' ValueRef {
3462 const Type* Ty = $2.PAT->get();
3463 if (!Ty->isInteger() && !Ty->isFloatingPoint() && !isa<VectorType>(Ty))
3464 error("Arithmetic operator requires integer, FP, or packed operands");
3465 if (isa<VectorType>(Ty) &&
3466 ($1 == URemOp || $1 == SRemOp || $1 == FRemOp || $1 == RemOp))
3467 error("Remainder not supported on vector types");
3468 // Upgrade the opcode from obsolete versions before we do anything with it.
3469 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $2.S);
3470 Value* val1 = getVal(Ty, $3);
3471 Value* val2 = getVal(Ty, $5);
3472 $$.I = BinaryOperator::create(Opcode, val1, val2);
3474 error("binary operator returned null");
3478 | LogicalOps Types ValueRef ',' ValueRef {
3481 const Type *Ty = $2.PAT->get();
3482 if (!Ty->isInteger()) {
3483 if (!isa<VectorType>(Ty) ||
3484 !cast<VectorType>(Ty)->getElementType()->isInteger())
3485 error("Logical operator requires integral operands");
3487 Instruction::BinaryOps Opcode = getBinaryOp($1, Ty, $2.S);
3488 Value* tmpVal1 = getVal(Ty, $3);
3489 Value* tmpVal2 = getVal(Ty, $5);
3490 $$.I = BinaryOperator::create(Opcode, tmpVal1, tmpVal2);
3492 error("binary operator returned null");
3496 | SetCondOps Types ValueRef ',' ValueRef {
3499 const Type* Ty = $2.PAT->get();
3500 if(isa<VectorType>(Ty))
3501 error("VectorTypes currently not supported in setcc instructions");
3502 unsigned short pred;
3503 Instruction::OtherOps Opcode = getCompareOp($1, pred, Ty, $2.S);
3504 Value* tmpVal1 = getVal(Ty, $3);
3505 Value* tmpVal2 = getVal(Ty, $5);
3506 $$.I = CmpInst::create(Opcode, pred, tmpVal1, tmpVal2);
3508 error("binary operator returned null");
3509 $$.S.makeUnsigned();
3512 | ICMP IPredicates Types ValueRef ',' ValueRef {
3515 const Type *Ty = $3.PAT->get();
3516 if (isa<VectorType>(Ty))
3517 error("VectorTypes currently not supported in icmp instructions");
3518 else if (!Ty->isInteger() && !isa<PointerType>(Ty))
3519 error("icmp requires integer or pointer typed operands");
3520 Value* tmpVal1 = getVal(Ty, $4);
3521 Value* tmpVal2 = getVal(Ty, $6);
3522 $$.I = new ICmpInst($2, tmpVal1, tmpVal2);
3523 $$.S.makeUnsigned();
3526 | FCMP FPredicates Types ValueRef ',' ValueRef {
3529 const Type *Ty = $3.PAT->get();
3530 if (isa<VectorType>(Ty))
3531 error("VectorTypes currently not supported in fcmp instructions");
3532 else if (!Ty->isFloatingPoint())
3533 error("fcmp instruction requires floating point operands");
3534 Value* tmpVal1 = getVal(Ty, $4);
3535 Value* tmpVal2 = getVal(Ty, $6);
3536 $$.I = new FCmpInst($2, tmpVal1, tmpVal2);
3537 $$.S.makeUnsigned();
3541 warning("Use of obsolete 'not' instruction: Replacing with 'xor");
3542 const Type *Ty = $2.V->getType();
3543 Value *Ones = ConstantInt::getAllOnesValue(Ty);
3545 error("Expected integral type for not instruction");
3546 $$.I = BinaryOperator::create(Instruction::Xor, $2.V, Ones);
3548 error("Could not create a xor instruction");
3551 | ShiftOps ResolvedVal ',' ResolvedVal {
3552 if (!$4.V->getType()->isInteger() ||
3553 cast<IntegerType>($4.V->getType())->getBitWidth() != 8)
3554 error("Shift amount must be int8");
3555 const Type* Ty = $2.V->getType();
3556 if (!Ty->isInteger())
3557 error("Shift constant expression requires integer operand");
3558 Value* ShiftAmt = 0;
3559 if (cast<IntegerType>(Ty)->getBitWidth() > Type::Int8Ty->getBitWidth())
3560 if (Constant *C = dyn_cast<Constant>($4.V))
3561 ShiftAmt = ConstantExpr::getZExt(C, Ty);
3563 ShiftAmt = new ZExtInst($4.V, Ty, makeNameUnique("shift"), CurBB);
3566 $$.I = BinaryOperator::create(getBinaryOp($1, Ty, $2.S), $2.V, ShiftAmt);
3569 | CastOps ResolvedVal TO Types {
3570 const Type *DstTy = $4.PAT->get();
3571 if (!DstTy->isFirstClassType())
3572 error("cast instruction to a non-primitive type: '" +
3573 DstTy->getDescription() + "'");
3574 $$.I = cast<Instruction>(getCast($1, $2.V, $2.S, DstTy, $4.S, true));
3578 | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3579 if (!$2.V->getType()->isInteger() ||
3580 cast<IntegerType>($2.V->getType())->getBitWidth() != 1)
3581 error("select condition must be bool");
3582 if ($4.V->getType() != $6.V->getType())
3583 error("select value types should match");
3584 $$.I = new SelectInst($2.V, $4.V, $6.V);
3587 | VAARG ResolvedVal ',' Types {
3588 const Type *Ty = $4.PAT->get();
3590 $$.I = new VAArgInst($2.V, Ty);
3594 | VAARG_old ResolvedVal ',' Types {
3595 const Type* ArgTy = $2.V->getType();
3596 const Type* DstTy = $4.PAT->get();
3597 ObsoleteVarArgs = true;
3598 Function* NF = cast<Function>(CurModule.CurrentModule->
3599 getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0));
3602 //foo = alloca 1 of t
3606 AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
3607 CurBB->getInstList().push_back(foo);
3608 CallInst* bar = new CallInst(NF, $2.V);
3609 CurBB->getInstList().push_back(bar);
3610 CurBB->getInstList().push_back(new StoreInst(bar, foo));
3611 $$.I = new VAArgInst(foo, DstTy);
3615 | VANEXT_old ResolvedVal ',' Types {
3616 const Type* ArgTy = $2.V->getType();
3617 const Type* DstTy = $4.PAT->get();
3618 ObsoleteVarArgs = true;
3619 Function* NF = cast<Function>(CurModule.CurrentModule->
3620 getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0));
3622 //b = vanext a, t ->
3623 //foo = alloca 1 of t
3626 //tmp = vaarg foo, t
3628 AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
3629 CurBB->getInstList().push_back(foo);
3630 CallInst* bar = new CallInst(NF, $2.V);
3631 CurBB->getInstList().push_back(bar);
3632 CurBB->getInstList().push_back(new StoreInst(bar, foo));
3633 Instruction* tmp = new VAArgInst(foo, DstTy);
3634 CurBB->getInstList().push_back(tmp);
3635 $$.I = new LoadInst(foo);
3639 | EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
3640 if (!ExtractElementInst::isValidOperands($2.V, $4.V))
3641 error("Invalid extractelement operands");
3642 $$.I = new ExtractElementInst($2.V, $4.V);
3643 $$.S.copy($2.S.get(0));
3645 | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3646 if (!InsertElementInst::isValidOperands($2.V, $4.V, $6.V))
3647 error("Invalid insertelement operands");
3648 $$.I = new InsertElementInst($2.V, $4.V, $6.V);
3651 | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
3652 if (!ShuffleVectorInst::isValidOperands($2.V, $4.V, $6.V))
3653 error("Invalid shufflevector operands");
3654 $$.I = new ShuffleVectorInst($2.V, $4.V, $6.V);
3658 const Type *Ty = $2.P->front().first->getType();
3659 if (!Ty->isFirstClassType())
3660 error("PHI node operands must be of first class type");
3661 PHINode *PHI = new PHINode(Ty);
3662 PHI->reserveOperandSpace($2.P->size());
3663 while ($2.P->begin() != $2.P->end()) {
3664 if ($2.P->front().first->getType() != Ty)
3665 error("All elements of a PHI node must be of the same type");
3666 PHI->addIncoming($2.P->front().first, $2.P->front().second);
3671 delete $2.P; // Free the list...
3673 | OptTailCall OptCallingConv TypesV ValueRef '(' ValueRefListE ')' {
3674 // Handle the short call syntax
3675 const PointerType *PFTy;
3676 const FunctionType *FTy;
3678 if (!(PFTy = dyn_cast<PointerType>($3.PAT->get())) ||
3679 !(FTy = dyn_cast<FunctionType>(PFTy->getElementType()))) {
3680 // Pull out the types of all of the arguments...
3681 std::vector<const Type*> ParamTypes;
3682 FTySign.makeComposite($3.S);
3684 for (std::vector<ValueInfo>::iterator I = $6->begin(), E = $6->end();
3686 ParamTypes.push_back((*I).V->getType());
3691 bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
3692 if (isVarArg) ParamTypes.pop_back();
3694 const Type *RetTy = $3.PAT->get();
3695 if (!RetTy->isFirstClassType() && RetTy != Type::VoidTy)
3696 error("Functions cannot return aggregate types");
3698 // Deal with CSRetCC
3699 ParamAttrsList *ParamAttrs = 0;
3700 if ($2 == OldCallingConv::CSRet) {
3701 ParamAttrs = new ParamAttrsList();
3702 ParamAttrs->addAttributes(0, ParamAttr::None); // function result
3703 ParamAttrs->addAttributes(1, ParamAttr::StructRet); // first parameter
3706 FTy = FunctionType::get(RetTy, ParamTypes, isVarArg, ParamAttrs);
3707 PFTy = PointerType::get(FTy);
3711 // Get the signedness of the result type. $3 is the pointer to the
3712 // function type so we get the 0th element to extract the function type,
3713 // and then the 0th element again to get the result type.
3714 $$.S.copy($3.S.get(0).get(0));
3716 $4.S.makeComposite(FTySign);
3718 // First upgrade any intrinsic calls.
3719 std::vector<Value*> Args;
3721 for (unsigned i = 0, e = $6->size(); i < e; ++i)
3722 Args.push_back((*$6)[i].V);
3723 Instruction *Inst = upgradeIntrinsicCall(FTy->getReturnType(), $4, Args);
3725 // If we got an upgraded intrinsic
3729 // Get the function we're calling
3730 Value *V = getVal(PFTy, $4);
3732 // Check the argument values match
3733 if (!$6) { // Has no arguments?
3734 // Make sure no arguments is a good thing!
3735 if (FTy->getNumParams() != 0)
3736 error("No arguments passed to a function that expects arguments");
3737 } else { // Has arguments?
3738 // Loop through FunctionType's arguments and ensure they are specified
3741 FunctionType::param_iterator I = FTy->param_begin();
3742 FunctionType::param_iterator E = FTy->param_end();
3743 std::vector<ValueInfo>::iterator ArgI = $6->begin(), ArgE = $6->end();
3745 for (; ArgI != ArgE && I != E; ++ArgI, ++I)
3746 if ((*ArgI).V->getType() != *I)
3747 error("Parameter " +(*ArgI).V->getName()+ " is not of type '" +
3748 (*I)->getDescription() + "'");
3750 if (I != E || (ArgI != ArgE && !FTy->isVarArg()))
3751 error("Invalid number of parameters detected");
3754 // Create the call instruction
3755 CallInst *CI = new CallInst(V, &Args[0], Args.size());
3756 CI->setTailCall($1);
3757 CI->setCallingConv(upgradeCallingConv($2));
3769 // IndexList - List of indices for GEP based instructions...
3771 : ',' ValueRefList { $$ = $2; }
3772 | /* empty */ { $$ = new std::vector<ValueInfo>(); }
3776 : VOLATILE { $$ = true; }
3777 | /* empty */ { $$ = false; }
3781 : MALLOC Types OptCAlign {
3782 const Type *Ty = $2.PAT->get();
3783 $$.S.makeComposite($2.S);
3784 $$.I = new MallocInst(Ty, 0, $3);
3787 | MALLOC Types ',' UINT ValueRef OptCAlign {
3788 const Type *Ty = $2.PAT->get();
3789 $5.S.makeUnsigned();
3790 $$.S.makeComposite($2.S);
3791 $$.I = new MallocInst(Ty, getVal($4.T, $5), $6);
3794 | ALLOCA Types OptCAlign {
3795 const Type *Ty = $2.PAT->get();
3796 $$.S.makeComposite($2.S);
3797 $$.I = new AllocaInst(Ty, 0, $3);
3800 | ALLOCA Types ',' UINT ValueRef OptCAlign {
3801 const Type *Ty = $2.PAT->get();
3802 $5.S.makeUnsigned();
3803 $$.S.makeComposite($4.S);
3804 $$.I = new AllocaInst(Ty, getVal($4.T, $5), $6);
3807 | FREE ResolvedVal {
3808 const Type *PTy = $2.V->getType();
3809 if (!isa<PointerType>(PTy))
3810 error("Trying to free nonpointer type '" + PTy->getDescription() + "'");
3811 $$.I = new FreeInst($2.V);
3812 $$.S.makeSignless();
3814 | OptVolatile LOAD Types ValueRef {
3815 const Type* Ty = $3.PAT->get();
3817 if (!isa<PointerType>(Ty))
3818 error("Can't load from nonpointer type: " + Ty->getDescription());
3819 if (!cast<PointerType>(Ty)->getElementType()->isFirstClassType())
3820 error("Can't load from pointer of non-first-class type: " +
3821 Ty->getDescription());
3822 Value* tmpVal = getVal(Ty, $4);
3823 $$.I = new LoadInst(tmpVal, "", $1);
3824 $$.S.copy($3.S.get(0));
3827 | OptVolatile STORE ResolvedVal ',' Types ValueRef {
3829 const PointerType *PTy = dyn_cast<PointerType>($5.PAT->get());
3831 error("Can't store to a nonpointer type: " +
3832 $5.PAT->get()->getDescription());
3833 const Type *ElTy = PTy->getElementType();
3834 Value *StoreVal = $3.V;
3835 Value* tmpVal = getVal(PTy, $6);
3836 if (ElTy != $3.V->getType()) {
3837 StoreVal = handleSRetFuncTypeMerge($3.V, ElTy);
3839 error("Can't store '" + $3.V->getType()->getDescription() +
3840 "' into space of type '" + ElTy->getDescription() + "'");
3842 PTy = PointerType::get(StoreVal->getType());
3843 if (Constant *C = dyn_cast<Constant>(tmpVal))
3844 tmpVal = ConstantExpr::getBitCast(C, PTy);
3846 tmpVal = new BitCastInst(tmpVal, PTy, "upgrd.cast", CurBB);
3849 $$.I = new StoreInst(StoreVal, tmpVal, $1);
3850 $$.S.makeSignless();
3853 | GETELEMENTPTR Types ValueRef IndexList {
3855 const Type* Ty = $2.PAT->get();
3856 if (!isa<PointerType>(Ty))
3857 error("getelementptr insn requires pointer operand");
3859 std::vector<Value*> VIndices;
3860 upgradeGEPIndices(Ty, $4, VIndices);
3862 Value* tmpVal = getVal(Ty, $3);
3863 $$.I = new GetElementPtrInst(tmpVal, &VIndices[0], VIndices.size());
3864 ValueInfo VI; VI.V = tmpVal; VI.S.copy($2.S);
3865 $$.S.copy(getElementSign(VI, VIndices));
3873 int yyerror(const char *ErrorMsg) {
3875 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3876 + ":" + llvm::utostr((unsigned) Upgradelineno) + ": ";
3877 std::string errMsg = where + "error: " + std::string(ErrorMsg);
3878 if (yychar != YYEMPTY && yychar != 0)
3879 errMsg += " while reading token '" + std::string(Upgradetext, Upgradeleng) +
3881 std::cerr << "llvm-upgrade: " << errMsg << '\n';
3882 std::cout << "llvm-upgrade: parse failed.\n";
3886 void warning(const std::string& ErrorMsg) {
3888 = std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
3889 + ":" + llvm::utostr((unsigned) Upgradelineno) + ": ";
3890 std::string errMsg = where + "warning: " + std::string(ErrorMsg);
3891 if (yychar != YYEMPTY && yychar != 0)
3892 errMsg += " while reading token '" + std::string(Upgradetext, Upgradeleng) +
3894 std::cerr << "llvm-upgrade: " << errMsg << '\n';
3897 void error(const std::string& ErrorMsg, int LineNo) {
3898 if (LineNo == -1) LineNo = Upgradelineno;
3899 Upgradelineno = LineNo;
3900 yyerror(ErrorMsg.c_str());