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Diffstat (limited to 'lib/AsmParser/llvmAsmParser.y')
| -rw-r--r-- | lib/AsmParser/llvmAsmParser.y | 3636 |
1 files changed, 0 insertions, 3636 deletions
diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y deleted file mode 100644 index 7028ea3..0000000 --- a/lib/AsmParser/llvmAsmParser.y +++ /dev/null @@ -1,3636 +0,0 @@ -//===-- llvmAsmParser.y - Parser for llvm assembly files --------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements the bison parser for LLVM assembly languages files. -// -//===----------------------------------------------------------------------===// - -%{ -#include "ParserInternals.h" -#include "llvm/CallingConv.h" -#include "llvm/InlineAsm.h" -#include "llvm/Instructions.h" -#include "llvm/Module.h" -#include "llvm/ValueSymbolTable.h" -#include "llvm/AutoUpgrade.h" -#include "llvm/Support/GetElementPtrTypeIterator.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/Support/MathExtras.h" -#include "llvm/Support/Streams.h" -#include <algorithm> -#include <list> -#include <map> -#include <utility> - -// The following is a gross hack. In order to rid the libAsmParser library of -// exceptions, we have to have a way of getting the yyparse function to go into -// an error situation. So, whenever we want an error to occur, the GenerateError -// function (see bottom of file) sets TriggerError. Then, at the end of each -// production in the grammer we use CHECK_FOR_ERROR which will invoke YYERROR -// (a goto) to put YACC in error state. Furthermore, several calls to -// GenerateError are made from inside productions and they must simulate the -// previous exception behavior by exiting the production immediately. We have -// replaced these with the GEN_ERROR macro which calls GeneratError and then -// immediately invokes YYERROR. This would be so much cleaner if it was a -// recursive descent parser. -static bool TriggerError = false; -#define CHECK_FOR_ERROR { if (TriggerError) { TriggerError = false; YYABORT; } } -#define GEN_ERROR(msg) { GenerateError(msg); YYERROR; } - -int yyerror(const char *ErrorMsg); // Forward declarations to prevent "implicit -int yylex(); // declaration" of xxx warnings. -int yyparse(); -using namespace llvm; - -static Module *ParserResult; - -// DEBUG_UPREFS - Define this symbol if you want to enable debugging output -// relating to upreferences in the input stream. -// -//#define DEBUG_UPREFS 1 -#ifdef DEBUG_UPREFS -#define UR_OUT(X) cerr << X -#else -#define UR_OUT(X) -#endif - -#define YYERROR_VERBOSE 1 - -static GlobalVariable *CurGV; - - -// This contains info used when building the body of a function. It is -// destroyed when the function is completed. -// -typedef std::vector<Value *> ValueList; // Numbered defs - -static void -ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers=0); - -static struct PerModuleInfo { - Module *CurrentModule; - ValueList Values; // Module level numbered definitions - ValueList LateResolveValues; - std::vector<PATypeHolder> Types; - std::map<ValID, PATypeHolder> LateResolveTypes; - - /// PlaceHolderInfo - When temporary placeholder objects are created, remember - /// how they were referenced and on which line of the input they came from so - /// that we can resolve them later and print error messages as appropriate. - std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo; - - // GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward - // references to global values. Global values may be referenced before they - // are defined, and if so, the temporary object that they represent is held - // here. This is used for forward references of GlobalValues. - // - typedef std::map<std::pair<const PointerType *, - ValID>, GlobalValue*> GlobalRefsType; - GlobalRefsType GlobalRefs; - - void ModuleDone() { - // If we could not resolve some functions at function compilation time - // (calls to functions before they are defined), resolve them now... Types - // are resolved when the constant pool has been completely parsed. - // - ResolveDefinitions(LateResolveValues); - if (TriggerError) - return; - - // Check to make sure that all global value forward references have been - // resolved! - // - if (!GlobalRefs.empty()) { - std::string UndefinedReferences = "Unresolved global references exist:\n"; - - for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end(); - I != E; ++I) { - UndefinedReferences += " " + I->first.first->getDescription() + " " + - I->first.second.getName() + "\n"; - } - GenerateError(UndefinedReferences); - return; - } - - // Look for intrinsic functions and CallInst that need to be upgraded - for (Module::iterator FI = CurrentModule->begin(), - FE = CurrentModule->end(); FI != FE; ) - UpgradeCallsToIntrinsic(FI++); // must be post-increment, as we remove - - Values.clear(); // Clear out function local definitions - Types.clear(); - CurrentModule = 0; - } - - // GetForwardRefForGlobal - Check to see if there is a forward reference - // for this global. If so, remove it from the GlobalRefs map and return it. - // If not, just return null. - GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) { - // Check to see if there is a forward reference to this global variable... - // if there is, eliminate it and patch the reference to use the new def'n. - GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID)); - GlobalValue *Ret = 0; - if (I != GlobalRefs.end()) { - Ret = I->second; - I->first.second.destroy(); - GlobalRefs.erase(I); - } - return Ret; - } - - bool TypeIsUnresolved(PATypeHolder* PATy) { - // If it isn't abstract, its resolved - const Type* Ty = PATy->get(); - if (!Ty->isAbstract()) - return false; - // Traverse the type looking for abstract types. If it isn't abstract then - // we don't need to traverse that leg of the type. - std::vector<const Type*> WorkList, SeenList; - WorkList.push_back(Ty); - while (!WorkList.empty()) { - const Type* Ty = WorkList.back(); - SeenList.push_back(Ty); - WorkList.pop_back(); - if (const OpaqueType* OpTy = dyn_cast<OpaqueType>(Ty)) { - // Check to see if this is an unresolved type - std::map<ValID, PATypeHolder>::iterator I = LateResolveTypes.begin(); - std::map<ValID, PATypeHolder>::iterator E = LateResolveTypes.end(); - for ( ; I != E; ++I) { - if (I->second.get() == OpTy) - return true; - } - } else if (const SequentialType* SeqTy = dyn_cast<SequentialType>(Ty)) { - const Type* TheTy = SeqTy->getElementType(); - if (TheTy->isAbstract() && TheTy != Ty) { - std::vector<const Type*>::iterator I = SeenList.begin(), - E = SeenList.end(); - for ( ; I != E; ++I) - if (*I == TheTy) - break; - if (I == E) - WorkList.push_back(TheTy); - } - } else if (const StructType* StrTy = dyn_cast<StructType>(Ty)) { - for (unsigned i = 0; i < StrTy->getNumElements(); ++i) { - const Type* TheTy = StrTy->getElementType(i); - if (TheTy->isAbstract() && TheTy != Ty) { - std::vector<const Type*>::iterator I = SeenList.begin(), - E = SeenList.end(); - for ( ; I != E; ++I) - if (*I == TheTy) - break; - if (I == E) - WorkList.push_back(TheTy); - } - } - } - } - return false; - } -} CurModule; - -static struct PerFunctionInfo { - Function *CurrentFunction; // Pointer to current function being created - - ValueList Values; // Keep track of #'d definitions - unsigned NextValNum; - ValueList LateResolveValues; - bool isDeclare; // Is this function a forward declararation? - GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration. - GlobalValue::VisibilityTypes Visibility; - - /// BBForwardRefs - When we see forward references to basic blocks, keep - /// track of them here. - std::map<ValID, BasicBlock*> BBForwardRefs; - - inline PerFunctionInfo() { - CurrentFunction = 0; - isDeclare = false; - Linkage = GlobalValue::ExternalLinkage; - Visibility = GlobalValue::DefaultVisibility; - } - - inline void FunctionStart(Function *M) { - CurrentFunction = M; - NextValNum = 0; - } - - void FunctionDone() { - // Any forward referenced blocks left? - if (!BBForwardRefs.empty()) { - GenerateError("Undefined reference to label " + - BBForwardRefs.begin()->second->getName()); - return; - } - - // Resolve all forward references now. - ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues); - - Values.clear(); // Clear out function local definitions - BBForwardRefs.clear(); - CurrentFunction = 0; - isDeclare = false; - Linkage = GlobalValue::ExternalLinkage; - Visibility = GlobalValue::DefaultVisibility; - } -} CurFun; // Info for the current function... - -static bool inFunctionScope() { return CurFun.CurrentFunction != 0; } - - -//===----------------------------------------------------------------------===// -// Code to handle definitions of all the types -//===----------------------------------------------------------------------===// - -/// InsertValue - Insert a value into the value table. If it is named, this -/// returns -1, otherwise it returns the slot number for the value. -static int InsertValue(Value *V, ValueList &ValueTab = CurFun.Values) { - // Things that have names or are void typed don't get slot numbers - if (V->hasName() || (V->getType() == Type::VoidTy)) - return -1; - - // In the case of function values, we have to allow for the forward reference - // of basic blocks, which are included in the numbering. Consequently, we keep - // track of the next insertion location with NextValNum. When a BB gets - // inserted, it could change the size of the CurFun.Values vector. - if (&ValueTab == &CurFun.Values) { - if (ValueTab.size() <= CurFun.NextValNum) - ValueTab.resize(CurFun.NextValNum+1); - ValueTab[CurFun.NextValNum++] = V; - return CurFun.NextValNum-1; - } - // For all other lists, its okay to just tack it on the back of the vector. - ValueTab.push_back(V); - return ValueTab.size()-1; -} - -static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) { - switch (D.Type) { - case ValID::LocalID: // Is it a numbered definition? - // Module constants occupy the lowest numbered slots... - if (D.Num < CurModule.Types.size()) - return CurModule.Types[D.Num]; - break; - case ValID::LocalName: // Is it a named definition? - if (const Type *N = CurModule.CurrentModule->getTypeByName(D.getName())) { - D.destroy(); // Free old strdup'd memory... - return N; - } - break; - default: - GenerateError("Internal parser error: Invalid symbol type reference"); - return 0; - } - - // If we reached here, we referenced either a symbol that we don't know about - // or an id number that hasn't been read yet. We may be referencing something - // forward, so just create an entry to be resolved later and get to it... - // - if (DoNotImprovise) return 0; // Do we just want a null to be returned? - - - if (inFunctionScope()) { - if (D.Type == ValID::LocalName) { - GenerateError("Reference to an undefined type: '" + D.getName() + "'"); - return 0; - } else { - GenerateError("Reference to an undefined type: #" + utostr(D.Num)); - return 0; - } - } - - std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D); - if (I != CurModule.LateResolveTypes.end()) { - D.destroy(); - return I->second; - } - - Type *Typ = OpaqueType::get(); - CurModule.LateResolveTypes.insert(std::make_pair(D, Typ)); - return Typ; - } - -// getExistingVal - Look up the value specified by the provided type and -// the provided ValID. If the value exists and has already been defined, return -// it. Otherwise return null. -// -static Value *getExistingVal(const Type *Ty, const ValID &D) { - if (isa<FunctionType>(Ty)) { - GenerateError("Functions are not values and " - "must be referenced as pointers"); - return 0; - } - - switch (D.Type) { - case ValID::LocalID: { // Is it a numbered definition? - // Check that the number is within bounds. - if (D.Num >= CurFun.Values.size()) - return 0; - Value *Result = CurFun.Values[D.Num]; - if (Ty != Result->getType()) { - GenerateError("Numbered value (%" + utostr(D.Num) + ") of type '" + - Result->getType()->getDescription() + "' does not match " - "expected type, '" + Ty->getDescription() + "'"); - return 0; - } - return Result; - } - case ValID::GlobalID: { // Is it a numbered definition? - if (D.Num >= CurModule.Values.size()) - return 0; - Value *Result = CurModule.Values[D.Num]; - if (Ty != Result->getType()) { - GenerateError("Numbered value (@" + utostr(D.Num) + ") of type '" + - Result->getType()->getDescription() + "' does not match " - "expected type, '" + Ty->getDescription() + "'"); - return 0; - } - return Result; - } - - case ValID::LocalName: { // Is it a named definition? - if (!inFunctionScope()) - return 0; - ValueSymbolTable &SymTab = CurFun.CurrentFunction->getValueSymbolTable(); - Value *N = SymTab.lookup(D.getName()); - if (N == 0) - return 0; - if (N->getType() != Ty) - return 0; - - D.destroy(); // Free old strdup'd memory... - return N; - } - case ValID::GlobalName: { // Is it a named definition? - ValueSymbolTable &SymTab = CurModule.CurrentModule->getValueSymbolTable(); - Value *N = SymTab.lookup(D.getName()); - if (N == 0) - return 0; - if (N->getType() != Ty) - return 0; - - D.destroy(); // Free old strdup'd memory... - return N; - } - - // Check to make sure that "Ty" is an integral type, and that our - // value will fit into the specified type... - case ValID::ConstSIntVal: // Is it a constant pool reference?? - if (!isa<IntegerType>(Ty) || - !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) { - GenerateError("Signed integral constant '" + - itostr(D.ConstPool64) + "' is invalid for type '" + - Ty->getDescription() + "'"); - return 0; - } - return ConstantInt::get(Ty, D.ConstPool64, true); - - case ValID::ConstUIntVal: // Is it an unsigned const pool reference? - if (isa<IntegerType>(Ty) && - ConstantInt::isValueValidForType(Ty, D.UConstPool64)) - return ConstantInt::get(Ty, D.UConstPool64); - - if (!isa<IntegerType>(Ty) || - !ConstantInt::isValueValidForType(Ty, D.ConstPool64)) { - GenerateError("Integral constant '" + utostr(D.UConstPool64) + - "' is invalid or out of range for type '" + - Ty->getDescription() + "'"); - return 0; - } - // This is really a signed reference. Transmogrify. - return ConstantInt::get(Ty, D.ConstPool64, true); - - case ValID::ConstAPInt: // Is it an unsigned const pool reference? - if (!isa<IntegerType>(Ty)) { - GenerateError("Integral constant '" + D.getName() + - "' is invalid or out of range for type '" + - Ty->getDescription() + "'"); - return 0; - } - - { - APSInt Tmp = *D.ConstPoolInt; - D.destroy(); - Tmp.extOrTrunc(Ty->getPrimitiveSizeInBits()); - return ConstantInt::get(Tmp); - } - - case ValID::ConstFPVal: // Is it a floating point const pool reference? - if (!Ty->isFloatingPoint() || - !ConstantFP::isValueValidForType(Ty, *D.ConstPoolFP)) { - GenerateError("FP constant invalid for type"); - return 0; - } - // Lexer has no type info, so builds all float and double FP constants - // as double. Fix this here. Long double does not need this. - if (&D.ConstPoolFP->getSemantics() == &APFloat::IEEEdouble && - Ty==Type::FloatTy) { - bool ignored; - D.ConstPoolFP->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, - &ignored); - } - { - ConstantFP *tmp = ConstantFP::get(*D.ConstPoolFP); - D.destroy(); - return tmp; - } - - case ValID::ConstNullVal: // Is it a null value? - if (!isa<PointerType>(Ty)) { - GenerateError("Cannot create a a non pointer null"); - return 0; - } - return ConstantPointerNull::get(cast<PointerType>(Ty)); - - case ValID::ConstUndefVal: // Is it an undef value? - return UndefValue::get(Ty); - - case ValID::ConstZeroVal: // Is it a zero value? - return Constant::getNullValue(Ty); - - case ValID::ConstantVal: // Fully resolved constant? - if (D.ConstantValue->getType() != Ty) { - GenerateError("Constant expression type different from required type"); - return 0; - } - return D.ConstantValue; - - case ValID::InlineAsmVal: { // Inline asm expression - const PointerType *PTy = dyn_cast<PointerType>(Ty); - const FunctionType *FTy = - PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0; - if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) { - GenerateError("Invalid type for asm constraint string"); - return 0; - } - InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints, - D.IAD->HasSideEffects); - D.destroy(); // Free InlineAsmDescriptor. - return IA; - } - default: - assert(0 && "Unhandled case!"); - return 0; - } // End of switch - - assert(0 && "Unhandled case!"); - return 0; -} - -// getVal - This function is identical to getExistingVal, except that if a -// value is not already defined, it "improvises" by creating a placeholder var -// that looks and acts just like the requested variable. When the value is -// defined later, all uses of the placeholder variable are replaced with the -// real thing. -// -static Value *getVal(const Type *Ty, const ValID &ID) { - if (Ty == Type::LabelTy) { - GenerateError("Cannot use a basic block here"); - return 0; - } - - // See if the value has already been defined. - Value *V = getExistingVal(Ty, ID); - if (V) return V; - if (TriggerError) return 0; - - if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) { - GenerateError("Invalid use of a non-first-class type"); - return 0; - } - - // If we reached here, we referenced either a symbol that we don't know about - // or an id number that hasn't been read yet. We may be referencing something - // forward, so just create an entry to be resolved later and get to it... - // - switch (ID.Type) { - case ValID::GlobalName: - case ValID::GlobalID: { - const PointerType *PTy = dyn_cast<PointerType>(Ty); - if (!PTy) { - GenerateError("Invalid type for reference to global" ); - return 0; - } - const Type* ElTy = PTy->getElementType(); - if (const FunctionType *FTy = dyn_cast<FunctionType>(ElTy)) - V = Function::Create(FTy, GlobalValue::ExternalLinkage); - else - V = new GlobalVariable(ElTy, false, GlobalValue::ExternalLinkage, 0, "", - (Module*)0, false, PTy->getAddressSpace()); - break; - } - default: - V = new Argument(Ty); - } - - // Remember where this forward reference came from. FIXME, shouldn't we try - // to recycle these things?? - CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID, - LLLgetLineNo()))); - - if (inFunctionScope()) - InsertValue(V, CurFun.LateResolveValues); - else - InsertValue(V, CurModule.LateResolveValues); - return V; -} - -/// defineBBVal - This is a definition of a new basic block with the specified -/// identifier which must be the same as CurFun.NextValNum, if its numeric. -static BasicBlock *defineBBVal(const ValID &ID) { - assert(inFunctionScope() && "Can't get basic block at global scope!"); - - BasicBlock *BB = 0; - - // First, see if this was forward referenced - - std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID); - if (BBI != CurFun.BBForwardRefs.end()) { - BB = BBI->second; - // The forward declaration could have been inserted anywhere in the - // function: insert it into the correct place now. - CurFun.CurrentFunction->getBasicBlockList().remove(BB); - CurFun.CurrentFunction->getBasicBlockList().push_back(BB); - - // We're about to erase the entry, save the key so we can clean it up. - ValID Tmp = BBI->first; - - // Erase the forward ref from the map as its no longer "forward" - CurFun.BBForwardRefs.erase(ID); - - // The key has been removed from the map but so we don't want to leave - // strdup'd memory around so destroy it too. - Tmp.destroy(); - - // If its a numbered definition, bump the number and set the BB value. - if (ID.Type == ValID::LocalID) { - assert(ID.Num == CurFun.NextValNum && "Invalid new block number"); - InsertValue(BB); - } - } else { - // We haven't seen this BB before and its first mention is a definition. - // Just create it and return it. - std::string Name (ID.Type == ValID::LocalName ? ID.getName() : ""); - BB = BasicBlock::Create(Name, CurFun.CurrentFunction); - if (ID.Type == ValID::LocalID) { - assert(ID.Num == CurFun.NextValNum && "Invalid new block number"); - InsertValue(BB); - } - } - - ID.destroy(); - return BB; -} - -/// getBBVal - get an existing BB value or create a forward reference for it. -/// -static BasicBlock *getBBVal(const ValID &ID) { - assert(inFunctionScope() && "Can't get basic block at global scope!"); - - BasicBlock *BB = 0; - - std::map<ValID, BasicBlock*>::iterator BBI = CurFun.BBForwardRefs.find(ID); - if (BBI != CurFun.BBForwardRefs.end()) { - BB = BBI->second; - } if (ID.Type == ValID::LocalName) { - std::string Name = ID.getName(); - Value *N = CurFun.CurrentFunction->getValueSymbolTable().lookup(Name); - if (N) { - if (N->getType()->getTypeID() == Type::LabelTyID) - BB = cast<BasicBlock>(N); - else - GenerateError("Reference to label '" + Name + "' is actually of type '"+ - N->getType()->getDescription() + "'"); - } - } else if (ID.Type == ValID::LocalID) { - if (ID.Num < CurFun.NextValNum && ID.Num < CurFun.Values.size()) { - if (CurFun.Values[ID.Num]->getType()->getTypeID() == Type::LabelTyID) - BB = cast<BasicBlock>(CurFun.Values[ID.Num]); - else - GenerateError("Reference to label '%" + utostr(ID.Num) + - "' is actually of type '"+ - CurFun.Values[ID.Num]->getType()->getDescription() + "'"); - } - } else { - GenerateError("Illegal label reference " + ID.getName()); - return 0; - } - - // If its already been defined, return it now. - if (BB) { - ID.destroy(); // Free strdup'd memory. - return BB; - } - - // Otherwise, this block has not been seen before, create it. - std::string Name; - if (ID.Type == ValID::LocalName) - Name = ID.getName(); - BB = BasicBlock::Create(Name, CurFun.CurrentFunction); - - // Insert it in the forward refs map. - CurFun.BBForwardRefs[ID] = BB; - - return BB; -} - - -//===----------------------------------------------------------------------===// -// Code to handle forward references in instructions -//===----------------------------------------------------------------------===// -// -// This code handles the late binding needed with statements that reference -// values not defined yet... for example, a forward branch, or the PHI node for -// a loop body. -// -// This keeps a table (CurFun.LateResolveValues) of all such forward references -// and back patchs after we are done. -// - -// ResolveDefinitions - If we could not resolve some defs at parsing -// time (forward branches, phi functions for loops, etc...) resolve the -// defs now... -// -static void -ResolveDefinitions(ValueList &LateResolvers, ValueList *FutureLateResolvers) { - // Loop over LateResolveDefs fixing up stuff that couldn't be resolved - while (!LateResolvers.empty()) { - Value *V = LateResolvers.back(); - LateResolvers.pop_back(); - - std::map<Value*, std::pair<ValID, int> >::iterator PHI = - CurModule.PlaceHolderInfo.find(V); - assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!"); - - ValID &DID = PHI->second.first; - - Value *TheRealValue = getExistingVal(V->getType(), DID); - if (TriggerError) - return; - if (TheRealValue) { - V->replaceAllUsesWith(TheRealValue); - delete V; - CurModule.PlaceHolderInfo.erase(PHI); - } else if (FutureLateResolvers) { - // Functions have their unresolved items forwarded to the module late - // resolver table - InsertValue(V, *FutureLateResolvers); - } else { - if (DID.Type == ValID::LocalName || DID.Type == ValID::GlobalName) { - GenerateError("Reference to an invalid definition: '" +DID.getName()+ - "' of type '" + V->getType()->getDescription() + "'", - PHI->second.second); - return; - } else { - GenerateError("Reference to an invalid definition: #" + - itostr(DID.Num) + " of type '" + - V->getType()->getDescription() + "'", - PHI->second.second); - return; - } - } - } - LateResolvers.clear(); -} - -// ResolveTypeTo - A brand new type was just declared. This means that (if -// name is not null) things referencing Name can be resolved. Otherwise, things -// refering to the number can be resolved. Do this now. -// -static void ResolveTypeTo(std::string *Name, const Type *ToTy) { - ValID D; - if (Name) - D = ValID::createLocalName(*Name); - else - D = ValID::createLocalID(CurModule.Types.size()); - - std::map<ValID, PATypeHolder>::iterator I = - CurModule.LateResolveTypes.find(D); - if (I != CurModule.LateResolveTypes.end()) { - ((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy); - I->first.destroy(); - CurModule.LateResolveTypes.erase(I); - } - D.destroy(); -} - -// setValueName - Set the specified value to the name given. The name may be -// null potentially, in which case this is a noop. The string passed in is -// assumed to be a malloc'd string buffer, and is free'd by this function. -// -static void setValueName(Value *V, std::string *NameStr) { - if (!NameStr) return; - std::string Name(*NameStr); // Copy string - delete NameStr; // Free old string - - if (V->getType() == Type::VoidTy) { - GenerateError("Can't assign name '" + Name+"' to value with void type"); - return; - } - - assert(inFunctionScope() && "Must be in function scope!"); - ValueSymbolTable &ST = CurFun.CurrentFunction->getValueSymbolTable(); - if (ST.lookup(Name)) { - GenerateError("Redefinition of value '" + Name + "' of type '" + - V->getType()->getDescription() + "'"); - return; - } - - // Set the name. - V->setName(Name); -} - -/// ParseGlobalVariable - Handle parsing of a global. If Initializer is null, -/// this is a declaration, otherwise it is a definition. -static GlobalVariable * -ParseGlobalVariable(std::string *NameStr, - GlobalValue::LinkageTypes Linkage, - GlobalValue::VisibilityTypes Visibility, - bool isConstantGlobal, const Type *Ty, - Constant *Initializer, bool IsThreadLocal, - unsigned AddressSpace = 0) { - if (isa<FunctionType>(Ty)) { - GenerateError("Cannot declare global vars of function type"); - return 0; - } - if (Ty == Type::LabelTy) { - GenerateError("Cannot declare global vars of label type"); - return 0; - } - - const PointerType *PTy = PointerType::get(Ty, AddressSpace); - - std::string Name; - if (NameStr) { - Name = *NameStr; // Copy string - delete NameStr; // Free old string - } - - // See if this global value was forward referenced. If so, recycle the - // object. - ValID ID; - if (!Name.empty()) { - ID = ValID::createGlobalName(Name); - } else { - ID = ValID::createGlobalID(CurModule.Values.size()); - } - - if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) { - // Move the global to the end of the list, from whereever it was - // previously inserted. - GlobalVariable *GV = cast<GlobalVariable>(FWGV); - CurModule.CurrentModule->getGlobalList().remove(GV); - CurModule.CurrentModule->getGlobalList().push_back(GV); - GV->setInitializer(Initializer); - GV->setLinkage(Linkage); - GV->setVisibility(Visibility); - GV->setConstant(isConstantGlobal); - GV->setThreadLocal(IsThreadLocal); - InsertValue(GV, CurModule.Values); - ID.destroy(); - return GV; - } - - ID.destroy(); - - // If this global has a name - if (!Name.empty()) { - // if the global we're parsing has an initializer (is a definition) and - // has external linkage. - if (Initializer && Linkage != GlobalValue::InternalLinkage) - // If there is already a global with external linkage with this name - if (CurModule.CurrentModule->getGlobalVariable(Name, false)) { - // If we allow this GVar to get created, it will be renamed in the - // symbol table because it conflicts with an existing GVar. We can't - // allow redefinition of GVars whose linking indicates that their name - // must stay the same. Issue the error. - GenerateError("Redefinition of global variable named '" + Name + - "' of type '" + Ty->getDescription() + "'"); - return 0; - } - } - - // Otherwise there is no existing GV to use, create one now. - GlobalVariable *GV = - new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name, - CurModule.CurrentModule, IsThreadLocal, AddressSpace); - GV->setVisibility(Visibility); - InsertValue(GV, CurModule.Values); - return GV; -} - -// setTypeName - Set the specified type to the name given. The name may be -// null potentially, in which case this is a noop. The string passed in is -// assumed to be a malloc'd string buffer, and is freed by this function. -// -// This function returns true if the type has already been defined, but is -// allowed to be redefined in the specified context. If the name is a new name -// for the type plane, it is inserted and false is returned. -static bool setTypeName(const Type *T, std::string *NameStr) { - assert(!inFunctionScope() && "Can't give types function-local names!"); - if (NameStr == 0) return false; - - std::string Name(*NameStr); // Copy string - delete NameStr; // Free old string - - // We don't allow assigning names to void type - if (T == Type::VoidTy) { - GenerateError("Can't assign name '" + Name + "' to the void type"); - return false; - } - - // Set the type name, checking for conflicts as we do so. - bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T); - - if (AlreadyExists) { // Inserting a name that is already defined??? - const Type *Existing = CurModule.CurrentModule->getTypeByName(Name); - assert(Existing && "Conflict but no matching type?!"); - - // There is only one case where this is allowed: when we are refining an - // opaque type. In this case, Existing will be an opaque type. - if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) { - // We ARE replacing an opaque type! - const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T); - return true; - } - - // Otherwise, this is an attempt to redefine a type. That's okay if - // the redefinition is identical to the original. This will be so if - // Existing and T point to the same Type object. In this one case we - // allow the equivalent redefinition. - if (Existing == T) return true; // Yes, it's equal. - - // Any other kind of (non-equivalent) redefinition is an error. - GenerateError("Redefinition of type named '" + Name + "' of type '" + - T->getDescription() + "'"); - } - - return false; -} - -//===----------------------------------------------------------------------===// -// Code for handling upreferences in type names... -// - -// TypeContains - Returns true if Ty directly contains E in it. -// -static bool TypeContains(const Type *Ty, const Type *E) { - return std::find(Ty->subtype_begin(), Ty->subtype_end(), - E) != Ty->subtype_end(); -} - -namespace { - struct UpRefRecord { - // NestingLevel - The number of nesting levels that need to be popped before - // this type is resolved. - unsigned NestingLevel; - - // LastContainedTy - This is the type at the current binding level for the - // type. Every time we reduce the nesting level, this gets updated. - const Type *LastContainedTy; - - // UpRefTy - This is the actual opaque type that the upreference is - // represented with. - OpaqueType *UpRefTy; - - UpRefRecord(unsigned NL, OpaqueType *URTy) - : NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {} - }; -} - -// UpRefs - A list of the outstanding upreferences that need to be resolved. -static std::vector<UpRefRecord> UpRefs; - -/// HandleUpRefs - Every time we finish a new layer of types, this function is -/// called. It loops through the UpRefs vector, which is a list of the -/// currently active types. For each type, if the up reference is contained in -/// the newly completed type, we decrement the level count. When the level -/// count reaches zero, the upreferenced type is the type that is passed in: -/// thus we can complete the cycle. -/// -static PATypeHolder HandleUpRefs(const Type *ty) { - // If Ty isn't abstract, or if there are no up-references in it, then there is - // nothing to resolve here. - if (!ty->isAbstract() || UpRefs.empty()) return ty; - - PATypeHolder Ty(ty); - UR_OUT("Type '" << Ty->getDescription() << - "' newly formed. Resolving upreferences.\n" << - UpRefs.size() << " upreferences active!\n"); - - // If we find any resolvable upreferences (i.e., those whose NestingLevel goes - // to zero), we resolve them all together before we resolve them to Ty. At - // the end of the loop, if there is anything to resolve to Ty, it will be in - // this variable. - OpaqueType *TypeToResolve = 0; - - for (unsigned i = 0; i != UpRefs.size(); ++i) { - UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", " - << UpRefs[i].second->getDescription() << ") = " - << (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n"); - if (TypeContains(Ty, UpRefs[i].LastContainedTy)) { - // Decrement level of upreference - unsigned Level = --UpRefs[i].NestingLevel; - UpRefs[i].LastContainedTy = Ty; - UR_OUT(" Uplevel Ref Level = " << Level << "\n"); - if (Level == 0) { // Upreference should be resolved! - if (!TypeToResolve) { - TypeToResolve = UpRefs[i].UpRefTy; - } else { - UR_OUT(" * Resolving upreference for " - << UpRefs[i].second->getDescription() << "\n"; - std::string OldName = UpRefs[i].UpRefTy->getDescription()); - UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve); - UR_OUT(" * Type '" << OldName << "' refined upreference to: " - << (const void*)Ty << ", " << Ty->getDescription() << "\n"); - } - UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list... - --i; // Do not skip the next element... - } - } - } - - if (TypeToResolve) { - UR_OUT(" * Resolving upreference for " - << UpRefs[i].second->getDescription() << "\n"; - std::string OldName = TypeToResolve->getDescription()); - TypeToResolve->refineAbstractTypeTo(Ty); - } - - return Ty; -} - -//===----------------------------------------------------------------------===// -// RunVMAsmParser - Define an interface to this parser -//===----------------------------------------------------------------------===// -// -static Module* RunParser(Module * M); - -Module *llvm::RunVMAsmParser(llvm::MemoryBuffer *MB) { - InitLLLexer(MB); - Module *M = RunParser(new Module(LLLgetFilename())); - FreeLexer(); - return M; -} - -%} - -%union { - llvm::Module *ModuleVal; - llvm::Function *FunctionVal; - llvm::BasicBlock *BasicBlockVal; - llvm::TerminatorInst *TermInstVal; - llvm::Instruction *InstVal; - llvm::Constant *ConstVal; - - const llvm::Type *PrimType; - std::list<llvm::PATypeHolder> *TypeList; - llvm::PATypeHolder *TypeVal; - llvm::Value *ValueVal; - std::vector<llvm::Value*> *ValueList; - std::vector<unsigned> *ConstantList; - llvm::ArgListType *ArgList; - llvm::TypeWithAttrs TypeWithAttrs; - llvm::TypeWithAttrsList *TypeWithAttrsList; - llvm::ParamList *ParamList; - - // Represent the RHS of PHI node - std::list<std::pair<llvm::Value*, - llvm::BasicBlock*> > *PHIList; - std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable; - std::vector<llvm::Constant*> *ConstVector; - - llvm::GlobalValue::LinkageTypes Linkage; - llvm::GlobalValue::VisibilityTypes Visibility; - llvm::Attributes Attributes; - llvm::APInt *APIntVal; - int64_t SInt64Val; - uint64_t UInt64Val; - int SIntVal; - unsigned UIntVal; - llvm::APFloat *FPVal; - bool BoolVal; - - std::string *StrVal; // This memory must be deleted - llvm::ValID ValIDVal; - - llvm::Instruction::BinaryOps BinaryOpVal; - llvm::Instruction::TermOps TermOpVal; - llvm::Instruction::MemoryOps MemOpVal; - llvm::Instruction::CastOps CastOpVal; - llvm::Instruction::OtherOps OtherOpVal; - llvm::ICmpInst::Predicate IPredicate; - llvm::FCmpInst::Predicate FPredicate; -} - -%type <ModuleVal> Module -%type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList -%type <BasicBlockVal> BasicBlock InstructionList -%type <TermInstVal> BBTerminatorInst -%type <InstVal> Inst InstVal MemoryInst -%type <ConstVal> ConstVal ConstExpr AliaseeRef -%type <ConstVector> ConstVector -%type <ArgList> ArgList ArgListH -%type <PHIList> PHIList -%type <ParamList> ParamList // For call param lists & GEP indices -%type <ValueList> IndexList // For GEP indices -%type <ConstantList> ConstantIndexList // For insertvalue/extractvalue indices -%type <TypeList> TypeListI -%type <TypeWithAttrsList> ArgTypeList ArgTypeListI -%type <TypeWithAttrs> ArgType -%type <JumpTable> JumpTable -%type <BoolVal> GlobalType // GLOBAL or CONSTANT? -%type <BoolVal> ThreadLocal // 'thread_local' or not -%type <BoolVal> OptVolatile // 'volatile' or not -%type <BoolVal> OptTailCall // TAIL CALL or plain CALL. -%type <BoolVal> OptSideEffect // 'sideeffect' or not. -%type <Linkage> GVInternalLinkage GVExternalLinkage -%type <Linkage> FunctionDefineLinkage FunctionDeclareLinkage -%type <Linkage> AliasLinkage -%type <Visibility> GVVisibilityStyle - -// ValueRef - Unresolved reference to a definition or BB -%type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef -%type <ValueVal> ResolvedVal // <type> <valref> pair -%type <ValueList> ReturnedVal -// Tokens and types for handling constant integer values -// -// ESINT64VAL - A negative number within long long range -%token <SInt64Val> ESINT64VAL - -// EUINT64VAL - A positive number within uns. long long range -%token <UInt64Val> EUINT64VAL - -// ESAPINTVAL - A negative number with arbitrary precision -%token <APIntVal> ESAPINTVAL - -// EUAPINTVAL - A positive number with arbitrary precision -%token <APIntVal> EUAPINTVAL - -%token <UIntVal> LOCALVAL_ID GLOBALVAL_ID // %123 @123 -%token <FPVal> FPVAL // Float or Double constant - -// Built in types... -%type <TypeVal> Types ResultTypes -%type <PrimType> PrimType // Classifications -%token <PrimType> VOID INTTYPE -%token <PrimType> FLOAT DOUBLE X86_FP80 FP128 PPC_FP128 LABEL -%token TYPE - - -%token<StrVal> LOCALVAR GLOBALVAR LABELSTR -%token<StrVal> STRINGCONSTANT ATSTRINGCONSTANT PCTSTRINGCONSTANT -%type <StrVal> LocalName OptLocalName OptLocalAssign -%type <StrVal> GlobalName OptGlobalAssign GlobalAssign -%type <StrVal> OptSection SectionString OptGC - -%type <UIntVal> OptAlign OptCAlign OptAddrSpace - -%token ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK -%token DECLARE DEFINE GLOBAL CONSTANT SECTION ALIAS VOLATILE THREAD_LOCAL -%token TO DOTDOTDOT NULL_TOK UNDEF INTERNAL LINKONCE WEAK APPENDING -%token DLLIMPORT DLLEXPORT EXTERN_WEAK COMMON -%token OPAQUE EXTERNAL TARGET TRIPLE ALIGN ADDRSPACE -%token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT -%token CC_TOK CCC_TOK FASTCC_TOK COLDCC_TOK X86_STDCALLCC_TOK X86_FASTCALLCC_TOK -%token DATALAYOUT -%type <UIntVal> OptCallingConv LocalNumber -%type <Attributes> OptAttributes Attribute -%type <Attributes> OptFuncAttrs FuncAttr -%type <Attributes> OptRetAttrs RetAttr - -// Basic Block Terminating Operators -%token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE - -// Binary Operators -%type <BinaryOpVal> ArithmeticOps LogicalOps // Binops Subcatagories -%token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR -%token <BinaryOpVal> SHL LSHR ASHR - -%token <OtherOpVal> ICMP FCMP VICMP VFCMP -%type <IPredicate> IPredicates -%type <FPredicate> FPredicates -%token EQ NE SLT SGT SLE SGE ULT UGT ULE UGE -%token OEQ ONE OLT OGT OLE OGE ORD UNO UEQ UNE - -// Memory Instructions -%token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR - -// Cast Operators -%type <CastOpVal> CastOps -%token <CastOpVal> TRUNC ZEXT SEXT FPTRUNC FPEXT BITCAST -%token <CastOpVal> UITOFP SITOFP FPTOUI FPTOSI INTTOPTR PTRTOINT - -// Other Operators -%token <OtherOpVal> PHI_TOK SELECT VAARG -%token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR -%token <OtherOpVal> GETRESULT -%token <OtherOpVal> EXTRACTVALUE INSERTVALUE - -// Function Attributes -%token SIGNEXT ZEROEXT NORETURN INREG SRET NOUNWIND NOALIAS NOCAPTURE BYVAL -%token READNONE READONLY GC OPTSIZE NOINLINE ALWAYSINLINE SSP SSPREQ NEST - -// Visibility Styles -%token DEFAULT HIDDEN PROTECTED - -%start Module -%% - - -// Operations that are notably excluded from this list include: -// RET, BR, & SWITCH because they end basic blocks and are treated specially. -// -ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM; -LogicalOps : SHL | LSHR | ASHR | AND | OR | XOR; -CastOps : TRUNC | ZEXT | SEXT | FPTRUNC | FPEXT | BITCAST | - UITOFP | SITOFP | FPTOUI | FPTOSI | INTTOPTR | PTRTOINT; - -IPredicates - : EQ { $$ = ICmpInst::ICMP_EQ; } | NE { $$ = ICmpInst::ICMP_NE; } - | SLT { $$ = ICmpInst::ICMP_SLT; } | SGT { $$ = ICmpInst::ICMP_SGT; } - | SLE { $$ = ICmpInst::ICMP_SLE; } | SGE { $$ = ICmpInst::ICMP_SGE; } - | ULT { $$ = ICmpInst::ICMP_ULT; } | UGT { $$ = ICmpInst::ICMP_UGT; } - | ULE { $$ = ICmpInst::ICMP_ULE; } | UGE { $$ = ICmpInst::ICMP_UGE; } - ; - -FPredicates - : OEQ { $$ = FCmpInst::FCMP_OEQ; } | ONE { $$ = FCmpInst::FCMP_ONE; } - | OLT { $$ = FCmpInst::FCMP_OLT; } | OGT { $$ = FCmpInst::FCMP_OGT; } - | OLE { $$ = FCmpInst::FCMP_OLE; } | OGE { $$ = FCmpInst::FCMP_OGE; } - | ORD { $$ = FCmpInst::FCMP_ORD; } | UNO { $$ = FCmpInst::FCMP_UNO; } - | UEQ { $$ = FCmpInst::FCMP_UEQ; } | UNE { $$ = FCmpInst::FCMP_UNE; } - | ULT { $$ = FCmpInst::FCMP_ULT; } | UGT { $$ = FCmpInst::FCMP_UGT; } - | ULE { $$ = FCmpInst::FCMP_ULE; } | UGE { $$ = FCmpInst::FCMP_UGE; } - | TRUETOK { $$ = FCmpInst::FCMP_TRUE; } - | FALSETOK { $$ = FCmpInst::FCMP_FALSE; } - ; - -LocalName : LOCALVAR | STRINGCONSTANT | PCTSTRINGCONSTANT ; -OptLocalName : LocalName | /*empty*/ { $$ = 0; }; - -OptAddrSpace : ADDRSPACE '(' EUINT64VAL ')' { $$=$3; } - | /*empty*/ { $$=0; }; - -/// OptLocalAssign - Value producing statements have an optional assignment -/// component. -OptLocalAssign : LocalName '=' { - $$ = $1; - CHECK_FOR_ERROR - } - | /*empty*/ { - $$ = 0; - CHECK_FOR_ERROR - }; - -LocalNumber : LOCALVAL_ID '=' { - $$ = $1; - CHECK_FOR_ERROR -}; - - -GlobalName : GLOBALVAR | ATSTRINGCONSTANT ; - -OptGlobalAssign : GlobalAssign - | /*empty*/ { - $$ = 0; - CHECK_FOR_ERROR - }; - -GlobalAssign : GlobalName '=' { - $$ = $1; - CHECK_FOR_ERROR - }; - -GVInternalLinkage - : INTERNAL { $$ = GlobalValue::InternalLinkage; } - | WEAK { $$ = GlobalValue::WeakLinkage; } - | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; } - | APPENDING { $$ = GlobalValue::AppendingLinkage; } - | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; } - | COMMON { $$ = GlobalValue::CommonLinkage; } - ; - -GVExternalLinkage - : DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; } - | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; } - | EXTERNAL { $$ = GlobalValue::ExternalLinkage; } - ; - -GVVisibilityStyle - : /*empty*/ { $$ = GlobalValue::DefaultVisibility; } - | DEFAULT { $$ = GlobalValue::DefaultVisibility; } - | HIDDEN { $$ = GlobalValue::HiddenVisibility; } - | PROTECTED { $$ = GlobalValue::ProtectedVisibility; } - ; - -FunctionDeclareLinkage - : /*empty*/ { $$ = GlobalValue::ExternalLinkage; } - | DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; } - | EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; } - ; - -FunctionDefineLinkage - : /*empty*/ { $$ = GlobalValue::ExternalLinkage; } - | INTERNAL { $$ = GlobalValue::InternalLinkage; } - | LINKONCE { $$ = GlobalValue::LinkOnceLinkage; } - | WEAK { $$ = GlobalValue::WeakLinkage; } - | DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; } - ; - -AliasLinkage - : /*empty*/ { $$ = GlobalValue::ExternalLinkage; } - | WEAK { $$ = GlobalValue::WeakLinkage; } - | INTERNAL { $$ = GlobalValue::InternalLinkage; } - ; - -OptCallingConv : /*empty*/ { $$ = CallingConv::C; } | - CCC_TOK { $$ = CallingConv::C; } | - FASTCC_TOK { $$ = CallingConv::Fast; } | - COLDCC_TOK { $$ = CallingConv::Cold; } | - X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } | - X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } | - CC_TOK EUINT64VAL { - if ((unsigned)$2 != $2) - GEN_ERROR("Calling conv too large"); - $$ = $2; - CHECK_FOR_ERROR - }; - -Attribute : ZEROEXT { $$ = Attribute::ZExt; } - | ZEXT { $$ = Attribute::ZExt; } - | SIGNEXT { $$ = Attribute::SExt; } - | SEXT { $$ = Attribute::SExt; } - | INREG { $$ = Attribute::InReg; } - | SRET { $$ = Attribute::StructRet; } - | NOALIAS { $$ = Attribute::NoAlias; } - | NOCAPTURE { $$ = Attribute::NoCapture; } - | BYVAL { $$ = Attribute::ByVal; } - | NEST { $$ = Attribute::Nest; } - | ALIGN EUINT64VAL { $$ = - Attribute::constructAlignmentFromInt($2); } - ; - -OptAttributes : /* empty */ { $$ = Attribute::None; } - | OptAttributes Attribute { - $$ = $1 | $2; - } - ; - -RetAttr : INREG { $$ = Attribute::InReg; } - | ZEROEXT { $$ = Attribute::ZExt; } - | SIGNEXT { $$ = Attribute::SExt; } - | NOALIAS { $$ = Attribute::NoAlias; } - ; - -OptRetAttrs : /* empty */ { $$ = Attribute::None; } - | OptRetAttrs RetAttr { - $$ = $1 | $2; - } - ; - - -FuncAttr : NORETURN { $$ = Attribute::NoReturn; } - | NOUNWIND { $$ = Attribute::NoUnwind; } - | INREG { $$ = Attribute::InReg; } - | ZEROEXT { $$ = Attribute::ZExt; } - | SIGNEXT { $$ = Attribute::SExt; } - | READNONE { $$ = Attribute::ReadNone; } - | READONLY { $$ = Attribute::ReadOnly; } - | NOINLINE { $$ = Attribute::NoInline; } - | ALWAYSINLINE { $$ = Attribute::AlwaysInline; } - | OPTSIZE { $$ = Attribute::OptimizeForSize; } - | SSP { $$ = Attribute::StackProtect; } - | SSPREQ { $$ = Attribute::StackProtectReq; } - ; - -OptFuncAttrs : /* empty */ { $$ = Attribute::None; } - | OptFuncAttrs FuncAttr { - $$ = $1 | $2; - } - ; - - -OptGC : /* empty */ { $$ = 0; } - | GC STRINGCONSTANT { - $$ = $2; - } - ; - -// OptAlign/OptCAlign - An optional alignment, and an optional alignment with -// a comma before it. -OptAlign : /*empty*/ { $$ = 0; } | - ALIGN EUINT64VAL { - $$ = $2; - if ($$ != 0 && !isPowerOf2_32($$)) - GEN_ERROR("Alignment must be a power of two"); - if ($$ > 0x40000000) - GEN_ERROR("Alignment too large"); - CHECK_FOR_ERROR -}; -OptCAlign : /*empty*/ { $$ = 0; } | - ',' ALIGN EUINT64VAL { - $$ = $3; - if ($$ != 0 && !isPowerOf2_32($$)) - GEN_ERROR("Alignment must be a power of two"); - if ($$ > 0x40000000) - GEN_ERROR("Alignment too large"); - CHECK_FOR_ERROR -}; - - - -SectionString : SECTION STRINGCONSTANT { - for (unsigned i = 0, e = $2->length(); i != e; ++i) - if ((*$2)[i] == '"' || (*$2)[i] == '\\') - GEN_ERROR("Invalid character in section name"); - $$ = $2; - CHECK_FOR_ERROR -}; - -OptSection : /*empty*/ { $$ = 0; } | - SectionString { $$ = $1; }; - -// GlobalVarAttributes - Used to pass the attributes string on a global. CurGV -// is set to be the global we are processing. -// -GlobalVarAttributes : /* empty */ {} | - ',' GlobalVarAttribute GlobalVarAttributes {}; -GlobalVarAttribute : SectionString { - CurGV->setSection(*$1); - delete $1; - CHECK_FOR_ERROR - } - | ALIGN EUINT64VAL { - if ($2 != 0 && !isPowerOf2_32($2)) - GEN_ERROR("Alignment must be a power of two"); - if ($2 > 0x40000000) - GEN_ERROR("Alignment too large"); - CurGV->setAlignment($2); - CHECK_FOR_ERROR - }; - -//===----------------------------------------------------------------------===// -// Types includes all predefined types... except void, because it can only be -// used in specific contexts (function returning void for example). - -// Derived types are added later... -// -PrimType : INTTYPE | FLOAT | DOUBLE | PPC_FP128 | FP128 | X86_FP80 | LABEL ; - -Types - : OPAQUE { - $$ = new PATypeHolder(OpaqueType::get()); - CHECK_FOR_ERROR - } - | PrimType { - $$ = new PATypeHolder($1); - CHECK_FOR_ERROR - } - | Types OptAddrSpace '*' { // Pointer type? - if (*$1 == Type::LabelTy) - GEN_ERROR("Cannot form a pointer to a basic block"); - $$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1, $2))); - delete $1; - CHECK_FOR_ERROR - } - | SymbolicValueRef { // Named types are also simple types... - const Type* tmp = getTypeVal($1); - CHECK_FOR_ERROR - $$ = new PATypeHolder(tmp); - } - | '\\' EUINT64VAL { // Type UpReference - if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range"); - OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder - UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector... - $$ = new PATypeHolder(OT); - UR_OUT("New Upreference!\n"); - CHECK_FOR_ERROR - } - | Types '(' ArgTypeListI ')' OptFuncAttrs { - // Allow but ignore attributes on function types; this permits auto-upgrade. - // FIXME: remove in LLVM 3.0. - const Type *RetTy = *$1; - if (!FunctionType::isValidReturnType(RetTy)) - GEN_ERROR("Invalid result type for LLVM function"); - - std::vector<const Type*> Params; - TypeWithAttrsList::iterator I = $3->begin(), E = $3->end(); - for (; I != E; ++I ) { - const Type *Ty = I->Ty->get(); - Params.push_back(Ty); - } - - bool isVarArg = Params.size() && Params.back() == Type::VoidTy; - if (isVarArg) Params.pop_back(); - - for (unsigned i = 0; i != Params.size(); ++i) - if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i]))) - GEN_ERROR("Function arguments must be value types!"); - - CHECK_FOR_ERROR - - FunctionType *FT = FunctionType::get(RetTy, Params, isVarArg); - delete $1; // Delete the return type handle - $$ = new PATypeHolder(HandleUpRefs(FT)); - - // Delete the argument list - for (I = $3->begin() ; I != E; ++I ) { - delete I->Ty; - } - delete $3; - - CHECK_FOR_ERROR - } - | VOID '(' ArgTypeListI ')' OptFuncAttrs { - // Allow but ignore attributes on function types; this permits auto-upgrade. - // FIXME: remove in LLVM 3.0. - std::vector<const Type*> Params; - TypeWithAttrsList::iterator I = $3->begin(), E = $3->end(); - for ( ; I != E; ++I ) { - const Type* Ty = I->Ty->get(); - Params.push_back(Ty); - } - - bool isVarArg = Params.size() && Params.back() == Type::VoidTy; - if (isVarArg) Params.pop_back(); - - for (unsigned i = 0; i != Params.size(); ++i) - if (!(Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i]))) - GEN_ERROR("Function arguments must be value types!"); - - CHECK_FOR_ERROR - - FunctionType *FT = FunctionType::get($1, Params, isVarArg); - $$ = new PATypeHolder(HandleUpRefs(FT)); - - // Delete the argument list - for (I = $3->begin() ; I != E; ++I ) { - delete I->Ty; - } - delete $3; - - CHECK_FOR_ERROR - } - - | '[' EUINT64VAL 'x' Types ']' { // Sized array type? - $$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, $2))); - delete $4; - CHECK_FOR_ERROR - } - | '<' EUINT64VAL 'x' Types '>' { // Vector type? - const llvm::Type* ElemTy = $4->get(); - if ((unsigned)$2 != $2) - GEN_ERROR("Unsigned result not equal to signed result"); - if (!ElemTy->isFloatingPoint() && !ElemTy->isInteger()) - GEN_ERROR("Element type of a VectorType must be primitive"); - $$ = new PATypeHolder(HandleUpRefs(VectorType::get(*$4, (unsigned)$2))); - delete $4; - CHECK_FOR_ERROR - } - | '{' TypeListI '}' { // Structure type? - std::vector<const Type*> Elements; - for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(), - E = $2->end(); I != E; ++I) - Elements.push_back(*I); - - $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements))); - delete $2; - CHECK_FOR_ERROR - } - | '{' '}' { // Empty structure type? - $$ = new PATypeHolder(StructType::get(std::vector<const Type*>())); - CHECK_FOR_ERROR - } - | '<' '{' TypeListI '}' '>' { - std::vector<const Type*> Elements; - for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(), - E = $3->end(); I != E; ++I) - Elements.push_back(*I); - - $$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements, true))); - delete $3; - CHECK_FOR_ERROR - } - | '<' '{' '}' '>' { // Empty structure type? - $$ = new PATypeHolder(StructType::get(std::vector<const Type*>(), true)); - CHECK_FOR_ERROR - } - ; - -ArgType - : Types OptAttributes { - // Allow but ignore attributes on function types; this permits auto-upgrade. - // FIXME: remove in LLVM 3.0. - $$.Ty = $1; - $$.Attrs = Attribute::None; - } - ; - -ResultTypes - : Types { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - if (!(*$1)->isFirstClassType() && !isa<StructType>($1->get())) - GEN_ERROR("LLVM functions cannot return aggregate types"); - $$ = $1; - } - | VOID { - $$ = new PATypeHolder(Type::VoidTy); - } - ; - -ArgTypeList : ArgType { - $$ = new TypeWithAttrsList(); - $$->push_back($1); - CHECK_FOR_ERROR - } - | ArgTypeList ',' ArgType { - ($$=$1)->push_back($3); - CHECK_FOR_ERROR - } - ; - -ArgTypeListI - : ArgTypeList - | ArgTypeList ',' DOTDOTDOT { - $$=$1; - TypeWithAttrs TWA; TWA.Attrs = Attribute::None; - TWA.Ty = new PATypeHolder(Type::VoidTy); - $$->push_back(TWA); - CHECK_FOR_ERROR - } - | DOTDOTDOT { - $$ = new TypeWithAttrsList; - TypeWithAttrs TWA; TWA.Attrs = Attribute::None; - TWA.Ty = new PATypeHolder(Type::VoidTy); - $$->push_back(TWA); - CHECK_FOR_ERROR - } - | /*empty*/ { - $$ = new TypeWithAttrsList(); - CHECK_FOR_ERROR - }; - -// TypeList - Used for struct declarations and as a basis for function type -// declaration type lists -// -TypeListI : Types { - $$ = new std::list<PATypeHolder>(); - $$->push_back(*$1); - delete $1; - CHECK_FOR_ERROR - } - | TypeListI ',' Types { - ($$=$1)->push_back(*$3); - delete $3; - CHECK_FOR_ERROR - }; - -// ConstVal - The various declarations that go into the constant pool. This -// production is used ONLY to represent constants that show up AFTER a 'const', -// 'constant' or 'global' token at global scope. Constants that can be inlined -// into other expressions (such as integers and constexprs) are handled by the -// ResolvedVal, ValueRef and ConstValueRef productions. -// -ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const ArrayType *ATy = dyn_cast<ArrayType>($1->get()); - if (ATy == 0) - GEN_ERROR("Cannot make array constant with type: '" + - (*$1)->getDescription() + "'"); - const Type *ETy = ATy->getElementType(); - uint64_t NumElements = ATy->getNumElements(); - - // Verify that we have the correct size... - if (NumElements != uint64_t(-1) && NumElements != $3->size()) - GEN_ERROR("Type mismatch: constant sized array initialized with " + - utostr($3->size()) + " arguments, but has size of " + - utostr(NumElements) + ""); - - // Verify all elements are correct type! - for (unsigned i = 0; i < $3->size(); i++) { - if (ETy != (*$3)[i]->getType()) - GEN_ERROR("Element #" + utostr(i) + " is not of type '" + - ETy->getDescription() +"' as required!\nIt is of type '"+ - (*$3)[i]->getType()->getDescription() + "'."); - } - - $$ = ConstantArray::get(ATy, *$3); - delete $1; delete $3; - CHECK_FOR_ERROR - } - | Types '[' ']' { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const ArrayType *ATy = dyn_cast<ArrayType>($1->get()); - if (ATy == 0) - GEN_ERROR("Cannot make array constant with type: '" + - (*$1)->getDescription() + "'"); - - uint64_t NumElements = ATy->getNumElements(); - if (NumElements != uint64_t(-1) && NumElements != 0) - GEN_ERROR("Type mismatch: constant sized array initialized with 0" - " arguments, but has size of " + utostr(NumElements) +""); - $$ = ConstantArray::get(ATy, std::vector<Constant*>()); - delete $1; - CHECK_FOR_ERROR - } - | Types 'c' STRINGCONSTANT { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const ArrayType *ATy = dyn_cast<ArrayType>($1->get()); - if (ATy == 0) - GEN_ERROR("Cannot make array constant with type: '" + - (*$1)->getDescription() + "'"); - - uint64_t NumElements = ATy->getNumElements(); - const Type *ETy = ATy->getElementType(); - if (NumElements != uint64_t(-1) && NumElements != $3->length()) - GEN_ERROR("Can't build string constant of size " + - utostr($3->length()) + - " when array has size " + utostr(NumElements) + ""); - std::vector<Constant*> Vals; - if (ETy == Type::Int8Ty) { - for (uint64_t i = 0; i < $3->length(); ++i) - Vals.push_back(ConstantInt::get(ETy, (*$3)[i])); - } else { - delete $3; - GEN_ERROR("Cannot build string arrays of non byte sized elements"); - } - delete $3; - $$ = ConstantArray::get(ATy, Vals); - delete $1; - CHECK_FOR_ERROR - } - | Types '<' ConstVector '>' { // Nonempty unsized arr - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const VectorType *PTy = dyn_cast<VectorType>($1->get()); - if (PTy == 0) - GEN_ERROR("Cannot make packed constant with type: '" + - (*$1)->getDescription() + "'"); - const Type *ETy = PTy->getElementType(); - unsigned NumElements = PTy->getNumElements(); - - // Verify that we have the correct size... - if (NumElements != unsigned(-1) && NumElements != (unsigned)$3->size()) - GEN_ERROR("Type mismatch: constant sized packed initialized with " + - utostr($3->size()) + " arguments, but has size of " + - utostr(NumElements) + ""); - - // Verify all elements are correct type! - for (unsigned i = 0; i < $3->size(); i++) { - if (ETy != (*$3)[i]->getType()) - GEN_ERROR("Element #" + utostr(i) + " is not of type '" + - ETy->getDescription() +"' as required!\nIt is of type '"+ - (*$3)[i]->getType()->getDescription() + "'."); - } - - $$ = ConstantVector::get(PTy, *$3); - delete $1; delete $3; - CHECK_FOR_ERROR - } - | Types '{' ConstVector '}' { - const StructType *STy = dyn_cast<StructType>($1->get()); - if (STy == 0) - GEN_ERROR("Cannot make struct constant with type: '" + - (*$1)->getDescription() + "'"); - - if ($3->size() != STy->getNumContainedTypes()) - GEN_ERROR("Illegal number of initializers for structure type"); - - // Check to ensure that constants are compatible with the type initializer! - for (unsigned i = 0, e = $3->size(); i != e; ++i) - if ((*$3)[i]->getType() != STy->getElementType(i)) - GEN_ERROR("Expected type '" + - STy->getElementType(i)->getDescription() + - "' for element #" + utostr(i) + - " of structure initializer"); - - // Check to ensure that Type is not packed - if (STy->isPacked()) - GEN_ERROR("Unpacked Initializer to vector type '" + - STy->getDescription() + "'"); - - $$ = ConstantStruct::get(STy, *$3); - delete $1; delete $3; - CHECK_FOR_ERROR - } - | Types '{' '}' { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const StructType *STy = dyn_cast<StructType>($1->get()); - if (STy == 0) - GEN_ERROR("Cannot make struct constant with type: '" + - (*$1)->getDescription() + "'"); - - if (STy->getNumContainedTypes() != 0) - GEN_ERROR("Illegal number of initializers for structure type"); - - // Check to ensure that Type is not packed - if (STy->isPacked()) - GEN_ERROR("Unpacked Initializer to vector type '" + - STy->getDescription() + "'"); - - $$ = ConstantStruct::get(STy, std::vector<Constant*>()); - delete $1; - CHECK_FOR_ERROR - } - | Types '<' '{' ConstVector '}' '>' { - const StructType *STy = dyn_cast<StructType>($1->get()); - if (STy == 0) - GEN_ERROR("Cannot make struct constant with type: '" + - (*$1)->getDescription() + "'"); - - if ($4->size() != STy->getNumContainedTypes()) - GEN_ERROR("Illegal number of initializers for structure type"); - - // Check to ensure that constants are compatible with the type initializer! - for (unsigned i = 0, e = $4->size(); i != e; ++i) - if ((*$4)[i]->getType() != STy->getElementType(i)) - GEN_ERROR("Expected type '" + - STy->getElementType(i)->getDescription() + - "' for element #" + utostr(i) + - " of structure initializer"); - - // Check to ensure that Type is packed - if (!STy->isPacked()) - GEN_ERROR("Vector initializer to non-vector type '" + - STy->getDescription() + "'"); - - $$ = ConstantStruct::get(STy, *$4); - delete $1; delete $4; - CHECK_FOR_ERROR - } - | Types '<' '{' '}' '>' { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const StructType *STy = dyn_cast<StructType>($1->get()); - if (STy == 0) - GEN_ERROR("Cannot make struct constant with type: '" + - (*$1)->getDescription() + "'"); - - if (STy->getNumContainedTypes() != 0) - GEN_ERROR("Illegal number of initializers for structure type"); - - // Check to ensure that Type is packed - if (!STy->isPacked()) - GEN_ERROR("Vector initializer to non-vector type '" + - STy->getDescription() + "'"); - - $$ = ConstantStruct::get(STy, std::vector<Constant*>()); - delete $1; - CHECK_FOR_ERROR - } - | Types NULL_TOK { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const PointerType *PTy = dyn_cast<PointerType>($1->get()); - if (PTy == 0) - GEN_ERROR("Cannot make null pointer constant with type: '" + - (*$1)->getDescription() + "'"); - - $$ = ConstantPointerNull::get(PTy); - delete $1; - CHECK_FOR_ERROR - } - | Types UNDEF { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - $$ = UndefValue::get($1->get()); - delete $1; - CHECK_FOR_ERROR - } - | Types SymbolicValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const PointerType *Ty = dyn_cast<PointerType>($1->get()); - if (Ty == 0) - GEN_ERROR("Global const reference must be a pointer type " + (*$1)->getDescription()); - - // ConstExprs can exist in the body of a function, thus creating - // GlobalValues whenever they refer to a variable. Because we are in - // the context of a function, getExistingVal will search the functions - // symbol table instead of the module symbol table for the global symbol, - // which throws things all off. To get around this, we just tell - // getExistingVal that we are at global scope here. - // - Function *SavedCurFn = CurFun.CurrentFunction; - CurFun.CurrentFunction = 0; - - Value *V = getExistingVal(Ty, $2); - CHECK_FOR_ERROR - - CurFun.CurrentFunction = SavedCurFn; - - // If this is an initializer for a constant pointer, which is referencing a - // (currently) undefined variable, create a stub now that shall be replaced - // in the future with the right type of variable. - // - if (V == 0) { - assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!"); - const PointerType *PT = cast<PointerType>(Ty); - - // First check to see if the forward references value is already created! - PerModuleInfo::GlobalRefsType::iterator I = - CurModule.GlobalRefs.find(std::make_pair(PT, $2)); - - if (I != CurModule.GlobalRefs.end()) { - V = I->second; // Placeholder already exists, use it... - $2.destroy(); - } else { - std::string Name; - if ($2.Type == ValID::GlobalName) - Name = $2.getName(); - else if ($2.Type != ValID::GlobalID) - GEN_ERROR("Invalid reference to global"); - - // Create the forward referenced global. - GlobalValue *GV; - if (const FunctionType *FTy = - dyn_cast<FunctionType>(PT->getElementType())) { - GV = Function::Create(FTy, GlobalValue::ExternalWeakLinkage, Name, - CurModule.CurrentModule); - } else { - GV = new GlobalVariable(PT->getElementType(), false, - GlobalValue::ExternalWeakLinkage, 0, - Name, CurModule.CurrentModule); - } - - // Keep track of the fact that we have a forward ref to recycle it - CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV)); - V = GV; - } - } - - $$ = cast<GlobalValue>(V); - delete $1; // Free the type handle - CHECK_FOR_ERROR - } - | Types ConstExpr { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - if ($1->get() != $2->getType()) - GEN_ERROR("Mismatched types for constant expression: " + - (*$1)->getDescription() + " and " + $2->getType()->getDescription()); - $$ = $2; - delete $1; - CHECK_FOR_ERROR - } - | Types ZEROINITIALIZER { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - const Type *Ty = $1->get(); - if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty)) - GEN_ERROR("Cannot create a null initialized value of this type"); - $$ = Constant::getNullValue(Ty); - delete $1; - CHECK_FOR_ERROR - } - | Types ESINT64VAL { // integral constants - if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) { - if (!ConstantInt::isValueValidForType(IT, $2)) - GEN_ERROR("Constant value doesn't fit in type"); - $$ = ConstantInt::get(IT, $2, true); - } else { - GEN_ERROR("integer constant must have integer type"); - } - delete $1; - CHECK_FOR_ERROR - } - | Types ESAPINTVAL { // arbitrary precision integer constants - if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) { - if ($2->getBitWidth() > IT->getBitWidth()) - GEN_ERROR("Constant value does not fit in type"); - $2->sextOrTrunc(IT->getBitWidth()); - $$ = ConstantInt::get(*$2); - } else { - GEN_ERROR("integer constant must have integer type"); - } - delete $1; - delete $2; - CHECK_FOR_ERROR - } - | Types EUINT64VAL { // integral constants - if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) { - if (!ConstantInt::isValueValidForType(IT, $2)) - GEN_ERROR("Constant value doesn't fit in type"); - $$ = ConstantInt::get(IT, $2, false); - } else { - GEN_ERROR("integer constant must have integer type"); - } - delete $1; - CHECK_FOR_ERROR - } - | Types EUAPINTVAL { // arbitrary precision integer constants - if (IntegerType *IT = dyn_cast<IntegerType>($1->get())) { - if ($2->getBitWidth() > IT->getBitWidth()) - GEN_ERROR("Constant value does not fit in type"); - $2->zextOrTrunc(IT->getBitWidth()); - $$ = ConstantInt::get(*$2); - } else { - GEN_ERROR("integer constant must have integer type"); - } - - delete $2; - delete $1; - CHECK_FOR_ERROR - } - | Types TRUETOK { // Boolean constants - if ($1->get() != Type::Int1Ty) - GEN_ERROR("Constant true must have type i1"); - $$ = ConstantInt::getTrue(); - delete $1; - CHECK_FOR_ERROR - } - | Types FALSETOK { // Boolean constants - if ($1->get() != Type::Int1Ty) - GEN_ERROR("Constant false must have type i1"); - $$ = ConstantInt::getFalse(); - delete $1; - CHECK_FOR_ERROR - } - | Types FPVAL { // Floating point constants - if (!ConstantFP::isValueValidForType($1->get(), *$2)) - GEN_ERROR("Floating point constant invalid for type"); - - // Lexer has no type info, so builds all float and double FP constants - // as double. Fix this here. Long double is done right. - if (&$2->getSemantics()==&APFloat::IEEEdouble && $1->get()==Type::FloatTy) { - bool ignored; - $2->convert(APFloat::IEEEsingle, APFloat::rmNearestTiesToEven, - &ignored); - } - $$ = ConstantFP::get(*$2); - delete $1; - delete $2; - CHECK_FOR_ERROR - }; - - -ConstExpr: CastOps '(' ConstVal TO Types ')' { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription()); - Constant *Val = $3; - const Type *DestTy = $5->get(); - if (!CastInst::castIsValid($1, $3, DestTy)) - GEN_ERROR("invalid cast opcode for cast from '" + - Val->getType()->getDescription() + "' to '" + - DestTy->getDescription() + "'"); - $$ = ConstantExpr::getCast($1, $3, DestTy); - delete $5; - } - | GETELEMENTPTR '(' ConstVal IndexList ')' { - if (!isa<PointerType>($3->getType())) - GEN_ERROR("GetElementPtr requires a pointer operand"); - - const Type *IdxTy = - GetElementPtrInst::getIndexedType($3->getType(), $4->begin(), $4->end()); - if (!IdxTy) - GEN_ERROR("Index list invalid for constant getelementptr"); - - SmallVector<Constant*, 8> IdxVec; - for (unsigned i = 0, e = $4->size(); i != e; ++i) - if (Constant *C = dyn_cast<Constant>((*$4)[i])) - IdxVec.push_back(C); - else - GEN_ERROR("Indices to constant getelementptr must be constants"); - - delete $4; - - $$ = ConstantExpr::getGetElementPtr($3, &IdxVec[0], IdxVec.size()); - CHECK_FOR_ERROR - } - | SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' { - if ($3->getType() != Type::Int1Ty) - GEN_ERROR("Select condition must be of boolean type"); - if ($5->getType() != $7->getType()) - GEN_ERROR("Select operand types must match"); - $$ = ConstantExpr::getSelect($3, $5, $7); - CHECK_FOR_ERROR - } - | ArithmeticOps '(' ConstVal ',' ConstVal ')' { - if ($3->getType() != $5->getType()) - GEN_ERROR("Binary operator types must match"); - CHECK_FOR_ERROR; - $$ = ConstantExpr::get($1, $3, $5); - } - | LogicalOps '(' ConstVal ',' ConstVal ')' { - if ($3->getType() != $5->getType()) - GEN_ERROR("Logical operator types must match"); - if (!$3->getType()->isInteger()) { - if (!isa<VectorType>($3->getType()) || - !cast<VectorType>($3->getType())->getElementType()->isInteger()) - GEN_ERROR("Logical operator requires integral operands"); - } - $$ = ConstantExpr::get($1, $3, $5); - CHECK_FOR_ERROR - } - | ICMP IPredicates '(' ConstVal ',' ConstVal ')' { - if ($4->getType() != $6->getType()) - GEN_ERROR("icmp operand types must match"); - $$ = ConstantExpr::getICmp($2, $4, $6); - } - | FCMP FPredicates '(' ConstVal ',' ConstVal ')' { - if ($4->getType() != $6->getType()) - GEN_ERROR("fcmp operand types must match"); - $$ = ConstantExpr::getFCmp($2, $4, $6); - } - | VICMP IPredicates '(' ConstVal ',' ConstVal ')' { - if ($4->getType() != $6->getType()) - GEN_ERROR("vicmp operand types must match"); - $$ = ConstantExpr::getVICmp($2, $4, $6); - } - | VFCMP FPredicates '(' ConstVal ',' ConstVal ')' { - if ($4->getType() != $6->getType()) - GEN_ERROR("vfcmp operand types must match"); - $$ = ConstantExpr::getVFCmp($2, $4, $6); - } - | EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' { - if (!ExtractElementInst::isValidOperands($3, $5)) - GEN_ERROR("Invalid extractelement operands"); - $$ = ConstantExpr::getExtractElement($3, $5); - CHECK_FOR_ERROR - } - | INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' { - if (!InsertElementInst::isValidOperands($3, $5, $7)) - GEN_ERROR("Invalid insertelement operands"); - $$ = ConstantExpr::getInsertElement($3, $5, $7); - CHECK_FOR_ERROR - } - | SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' { - if (!ShuffleVectorInst::isValidOperands($3, $5, $7)) - GEN_ERROR("Invalid shufflevector operands"); - $$ = ConstantExpr::getShuffleVector($3, $5, $7); - CHECK_FOR_ERROR - } - | EXTRACTVALUE '(' ConstVal ConstantIndexList ')' { - if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType())) - GEN_ERROR("ExtractValue requires an aggregate operand"); - - $$ = ConstantExpr::getExtractValue($3, &(*$4)[0], $4->size()); - delete $4; - CHECK_FOR_ERROR - } - | INSERTVALUE '(' ConstVal ',' ConstVal ConstantIndexList ')' { - if (!isa<StructType>($3->getType()) && !isa<ArrayType>($3->getType())) - GEN_ERROR("InsertValue requires an aggregate operand"); - - $$ = ConstantExpr::getInsertValue($3, $5, &(*$6)[0], $6->size()); - delete $6; - CHECK_FOR_ERROR - }; - - -// ConstVector - A list of comma separated constants. -ConstVector : ConstVector ',' ConstVal { - ($$ = $1)->push_back($3); - CHECK_FOR_ERROR - } - | ConstVal { - $$ = new std::vector<Constant*>(); - $$->push_back($1); - CHECK_FOR_ERROR - }; - - -// GlobalType - Match either GLOBAL or CONSTANT for global declarations... -GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; }; - -// ThreadLocal -ThreadLocal : THREAD_LOCAL { $$ = true; } | { $$ = false; }; - -// AliaseeRef - Match either GlobalValue or bitcast to GlobalValue. -AliaseeRef : ResultTypes SymbolicValueRef { - const Type* VTy = $1->get(); - Value *V = getVal(VTy, $2); - CHECK_FOR_ERROR - GlobalValue* Aliasee = dyn_cast<GlobalValue>(V); - if (!Aliasee) - GEN_ERROR("Aliases can be created only to global values"); - - $$ = Aliasee; - CHECK_FOR_ERROR - delete $1; - } - | BITCAST '(' AliaseeRef TO Types ')' { - Constant *Val = $3; - const Type *DestTy = $5->get(); - if (!CastInst::castIsValid($1, $3, DestTy)) - GEN_ERROR("invalid cast opcode for cast from '" + - Val->getType()->getDescription() + "' to '" + - DestTy->getDescription() + "'"); - - $$ = ConstantExpr::getCast($1, $3, DestTy); - CHECK_FOR_ERROR - delete $5; - }; - -//===----------------------------------------------------------------------===// -// Rules to match Modules -//===----------------------------------------------------------------------===// - -// Module rule: Capture the result of parsing the whole file into a result -// variable... -// -Module - : DefinitionList { - $$ = ParserResult = CurModule.CurrentModule; - CurModule.ModuleDone(); - CHECK_FOR_ERROR; - } - | /*empty*/ { - $$ = ParserResult = CurModule.CurrentModule; - CurModule.ModuleDone(); - CHECK_FOR_ERROR; - } - ; - -DefinitionList - : Definition - | DefinitionList Definition - ; - -Definition - : DEFINE { CurFun.isDeclare = false; } Function { - CurFun.FunctionDone(); - CHECK_FOR_ERROR - } - | DECLARE { CurFun.isDeclare = true; } FunctionProto { - CHECK_FOR_ERROR - } - | MODULE ASM_TOK AsmBlock { - CHECK_FOR_ERROR - } - | OptLocalAssign TYPE Types { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - // Eagerly resolve types. This is not an optimization, this is a - // requirement that is due to the fact that we could have this: - // - // %list = type { %list * } - // %list = type { %list * } ; repeated type decl - // - // If types are not resolved eagerly, then the two types will not be - // determined to be the same type! - // - ResolveTypeTo($1, *$3); - - if (!setTypeName(*$3, $1) && !$1) { - CHECK_FOR_ERROR - // If this is a named type that is not a redefinition, add it to the slot - // table. - CurModule.Types.push_back(*$3); - } - - delete $3; - CHECK_FOR_ERROR - } - | OptLocalAssign TYPE VOID { - ResolveTypeTo($1, $3); - - if (!setTypeName($3, $1) && !$1) { - CHECK_FOR_ERROR - // If this is a named type that is not a redefinition, add it to the slot - // table. - CurModule.Types.push_back($3); - } - CHECK_FOR_ERROR - } - | OptGlobalAssign GVVisibilityStyle ThreadLocal GlobalType ConstVal - OptAddrSpace { - /* "Externally Visible" Linkage */ - if ($5 == 0) - GEN_ERROR("Global value initializer is not a constant"); - CurGV = ParseGlobalVariable($1, GlobalValue::ExternalLinkage, - $2, $4, $5->getType(), $5, $3, $6); - CHECK_FOR_ERROR - } GlobalVarAttributes { - CurGV = 0; - } - | OptGlobalAssign GVInternalLinkage GVVisibilityStyle ThreadLocal GlobalType - ConstVal OptAddrSpace { - if ($6 == 0) - GEN_ERROR("Global value initializer is not a constant"); - CurGV = ParseGlobalVariable($1, $2, $3, $5, $6->getType(), $6, $4, $7); - CHECK_FOR_ERROR - } GlobalVarAttributes { - CurGV = 0; - } - | OptGlobalAssign GVExternalLinkage GVVisibilityStyle ThreadLocal GlobalType - Types OptAddrSpace { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$6)->getDescription()); - CurGV = ParseGlobalVariable($1, $2, $3, $5, *$6, 0, $4, $7); - CHECK_FOR_ERROR - delete $6; - } GlobalVarAttributes { - CurGV = 0; - CHECK_FOR_ERROR - } - | OptGlobalAssign GVVisibilityStyle ALIAS AliasLinkage AliaseeRef { - std::string Name; - if ($1) { - Name = *$1; - delete $1; - } - if (Name.empty()) - GEN_ERROR("Alias name cannot be empty"); - - Constant* Aliasee = $5; - if (Aliasee == 0) - GEN_ERROR(std::string("Invalid aliasee for alias: ") + Name); - - GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), $4, Name, Aliasee, - CurModule.CurrentModule); - GA->setVisibility($2); - InsertValue(GA, CurModule.Values); - - - // If there was a forward reference of this alias, resolve it now. - - ValID ID; - if (!Name.empty()) - ID = ValID::createGlobalName(Name); - else - ID = ValID::createGlobalID(CurModule.Values.size()-1); - - if (GlobalValue *FWGV = - CurModule.GetForwardRefForGlobal(GA->getType(), ID)) { - // Replace uses of the fwdref with the actual alias. - FWGV->replaceAllUsesWith(GA); - if (GlobalVariable *GV = dyn_cast<GlobalVariable>(FWGV)) - GV->eraseFromParent(); - else - cast<Function>(FWGV)->eraseFromParent(); - } - ID.destroy(); - - CHECK_FOR_ERROR - } - | TARGET TargetDefinition { - CHECK_FOR_ERROR - } - | DEPLIBS '=' LibrariesDefinition { - CHECK_FOR_ERROR - } - ; - - -AsmBlock : STRINGCONSTANT { - const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm(); - if (AsmSoFar.empty()) - CurModule.CurrentModule->setModuleInlineAsm(*$1); - else - CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+*$1); - delete $1; - CHECK_FOR_ERROR -}; - -TargetDefinition : TRIPLE '=' STRINGCONSTANT { - CurModule.CurrentModule->setTargetTriple(*$3); - delete $3; - } - | DATALAYOUT '=' STRINGCONSTANT { - CurModule.CurrentModule->setDataLayout(*$3); - delete $3; - }; - -LibrariesDefinition : '[' LibList ']'; - -LibList : LibList ',' STRINGCONSTANT { - CurModule.CurrentModule->addLibrary(*$3); - delete $3; - CHECK_FOR_ERROR - } - | STRINGCONSTANT { - CurModule.CurrentModule->addLibrary(*$1); - delete $1; - CHECK_FOR_ERROR - } - | /* empty: end of list */ { - CHECK_FOR_ERROR - } - ; - -//===----------------------------------------------------------------------===// -// Rules to match Function Headers -//===----------------------------------------------------------------------===// - -ArgListH : ArgListH ',' Types OptAttributes OptLocalName { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - if (!(*$3)->isFirstClassType()) - GEN_ERROR("Argument types must be first-class"); - ArgListEntry E; E.Attrs = $4; E.Ty = $3; E.Name = $5; - $$ = $1; - $1->push_back(E); - CHECK_FOR_ERROR - } - | Types OptAttributes OptLocalName { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - if (!(*$1)->isFirstClassType()) - GEN_ERROR("Argument types must be first-class"); - ArgListEntry E; E.Attrs = $2; E.Ty = $1; E.Name = $3; - $$ = new ArgListType; - $$->push_back(E); - CHECK_FOR_ERROR - }; - -ArgList : ArgListH { - $$ = $1; - CHECK_FOR_ERROR - } - | ArgListH ',' DOTDOTDOT { - $$ = $1; - struct ArgListEntry E; - E.Ty = new PATypeHolder(Type::VoidTy); - E.Name = 0; - E.Attrs = Attribute::None; - $$->push_back(E); - CHECK_FOR_ERROR - } - | DOTDOTDOT { - $$ = new ArgListType; - struct ArgListEntry E; - E.Ty = new PATypeHolder(Type::VoidTy); - E.Name = 0; - E.Attrs = Attribute::None; - $$->push_back(E); - CHECK_FOR_ERROR - } - | /* empty */ { - $$ = 0; - CHECK_FOR_ERROR - }; - -FunctionHeaderH : OptCallingConv OptRetAttrs ResultTypes GlobalName '(' ArgList ')' - OptFuncAttrs OptSection OptAlign OptGC { - std::string FunctionName(*$4); - delete $4; // Free strdup'd memory! - - // Check the function result for abstractness if this is a define. We should - // have no abstract types at this point - if (!CurFun.isDeclare && CurModule.TypeIsUnresolved($3)) - GEN_ERROR("Reference to abstract result: "+ $3->get()->getDescription()); - - if (!FunctionType::isValidReturnType(*$3)) - GEN_ERROR("Invalid result type for LLVM function"); - - std::vector<const Type*> ParamTypeList; - SmallVector<AttributeWithIndex, 8> Attrs; - //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function - //attributes. - Attributes RetAttrs = $2; - if ($8 != Attribute::None) { - if ($8 & Attribute::ZExt) { - RetAttrs = RetAttrs | Attribute::ZExt; - $8 = $8 ^ Attribute::ZExt; - } - if ($8 & Attribute::SExt) { - RetAttrs = RetAttrs | Attribute::SExt; - $8 = $8 ^ Attribute::SExt; - } - if ($8 & Attribute::InReg) { - RetAttrs = RetAttrs | Attribute::InReg; - $8 = $8 ^ Attribute::InReg; - } - } - if (RetAttrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(0, RetAttrs)); - if ($6) { // If there are arguments... - unsigned index = 1; - for (ArgListType::iterator I = $6->begin(); I != $6->end(); ++I, ++index) { - const Type* Ty = I->Ty->get(); - if (!CurFun.isDeclare && CurModule.TypeIsUnresolved(I->Ty)) - GEN_ERROR("Reference to abstract argument: " + Ty->getDescription()); - ParamTypeList.push_back(Ty); - if (Ty != Type::VoidTy && I->Attrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(index, I->Attrs)); - } - } - if ($8 != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(~0, $8)); - - bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy; - if (isVarArg) ParamTypeList.pop_back(); - - AttrListPtr PAL; - if (!Attrs.empty()) - PAL = AttrListPtr::get(Attrs.begin(), Attrs.end()); - - FunctionType *FT = FunctionType::get(*$3, ParamTypeList, isVarArg); - const PointerType *PFT = PointerType::getUnqual(FT); - delete $3; - - ValID ID; - if (!FunctionName.empty()) { - ID = ValID::createGlobalName((char*)FunctionName.c_str()); - } else { - ID = ValID::createGlobalID(CurModule.Values.size()); - } - - Function *Fn = 0; - // See if this function was forward referenced. If so, recycle the object. - if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) { - // Move the function to the end of the list, from whereever it was - // previously inserted. - Fn = cast<Function>(FWRef); - assert(Fn->getAttributes().isEmpty() && - "Forward reference has parameter attributes!"); - CurModule.CurrentModule->getFunctionList().remove(Fn); - CurModule.CurrentModule->getFunctionList().push_back(Fn); - } else if (!FunctionName.empty() && // Merge with an earlier prototype? - (Fn = CurModule.CurrentModule->getFunction(FunctionName))) { - if (Fn->getFunctionType() != FT ) { - // The existing function doesn't have the same type. This is an overload - // error. - GEN_ERROR("Overload of function '" + FunctionName + "' not permitted."); - } else if (Fn->getAttributes() != PAL) { - // The existing function doesn't have the same parameter attributes. - // This is an overload error. - GEN_ERROR("Overload of function '" + FunctionName + "' not permitted."); - } else if (!CurFun.isDeclare && !Fn->isDeclaration()) { - // Neither the existing or the current function is a declaration and they - // have the same name and same type. Clearly this is a redefinition. - GEN_ERROR("Redefinition of function '" + FunctionName + "'"); - } else if (Fn->isDeclaration()) { - // Make sure to strip off any argument names so we can't get conflicts. - for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end(); - AI != AE; ++AI) - AI->setName(""); - } - } else { // Not already defined? - Fn = Function::Create(FT, GlobalValue::ExternalWeakLinkage, FunctionName, - CurModule.CurrentModule); - InsertValue(Fn, CurModule.Values); - } - - ID.destroy(); - CurFun.FunctionStart(Fn); - - if (CurFun.isDeclare) { - // If we have declaration, always overwrite linkage. This will allow us to - // correctly handle cases, when pointer to function is passed as argument to - // another function. - Fn->setLinkage(CurFun.Linkage); - Fn->setVisibility(CurFun.Visibility); - } - Fn->setCallingConv($1); - Fn->setAttributes(PAL); - Fn->setAlignment($10); - if ($9) { - Fn->setSection(*$9); - delete $9; - } - if ($11) { - Fn->setGC($11->c_str()); - delete $11; - } - - // Add all of the arguments we parsed to the function... - if ($6) { // Is null if empty... - if (isVarArg) { // Nuke the last entry - assert($6->back().Ty->get() == Type::VoidTy && $6->back().Name == 0 && - "Not a varargs marker!"); - delete $6->back().Ty; - $6->pop_back(); // Delete the last entry - } - Function::arg_iterator ArgIt = Fn->arg_begin(); - Function::arg_iterator ArgEnd = Fn->arg_end(); - unsigned Idx = 1; - for (ArgListType::iterator I = $6->begin(); - I != $6->end() && ArgIt != ArgEnd; ++I, ++ArgIt) { - delete I->Ty; // Delete the typeholder... - setValueName(ArgIt, I->Name); // Insert arg into symtab... - CHECK_FOR_ERROR - InsertValue(ArgIt); - Idx++; - } - - delete $6; // We're now done with the argument list - } - CHECK_FOR_ERROR -}; - -BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function - -FunctionHeader : FunctionDefineLinkage GVVisibilityStyle FunctionHeaderH BEGIN { - $$ = CurFun.CurrentFunction; - - // Make sure that we keep track of the linkage type even if there was a - // previous "declare". - $$->setLinkage($1); - $$->setVisibility($2); -}; - -END : ENDTOK | '}'; // Allow end of '}' to end a function - -Function : BasicBlockList END { - $$ = $1; - CHECK_FOR_ERROR -}; - -FunctionProto : FunctionDeclareLinkage GVVisibilityStyle FunctionHeaderH { - CurFun.CurrentFunction->setLinkage($1); - CurFun.CurrentFunction->setVisibility($2); - $$ = CurFun.CurrentFunction; - CurFun.FunctionDone(); - CHECK_FOR_ERROR - }; - -//===----------------------------------------------------------------------===// -// Rules to match Basic Blocks -//===----------------------------------------------------------------------===// - -OptSideEffect : /* empty */ { - $$ = false; - CHECK_FOR_ERROR - } - | SIDEEFFECT { - $$ = true; - CHECK_FOR_ERROR - }; - -ConstValueRef : ESINT64VAL { // A reference to a direct constant - $$ = ValID::create($1); - CHECK_FOR_ERROR - } - | EUINT64VAL { - $$ = ValID::create($1); - CHECK_FOR_ERROR - } - | ESAPINTVAL { // arbitrary precision integer constants - $$ = ValID::create(*$1, true); - delete $1; - CHECK_FOR_ERROR - } - | EUAPINTVAL { // arbitrary precision integer constants - $$ = ValID::create(*$1, false); - delete $1; - CHECK_FOR_ERROR - } - | FPVAL { // Perhaps it's an FP constant? - $$ = ValID::create($1); - CHECK_FOR_ERROR - } - | TRUETOK { - $$ = ValID::create(ConstantInt::getTrue()); - CHECK_FOR_ERROR - } - | FALSETOK { - $$ = ValID::create(ConstantInt::getFalse()); - CHECK_FOR_ERROR - } - | NULL_TOK { - $$ = ValID::createNull(); - CHECK_FOR_ERROR - } - | UNDEF { - $$ = ValID::createUndef(); - CHECK_FOR_ERROR - } - | ZEROINITIALIZER { // A vector zero constant. - $$ = ValID::createZeroInit(); - CHECK_FOR_ERROR - } - | '<' ConstVector '>' { // Nonempty unsized packed vector - const Type *ETy = (*$2)[0]->getType(); - unsigned NumElements = $2->size(); - - if (!ETy->isInteger() && !ETy->isFloatingPoint()) - GEN_ERROR("Invalid vector element type: " + ETy->getDescription()); - - VectorType* pt = VectorType::get(ETy, NumElements); - PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(pt)); - - // Verify all elements are correct type! - for (unsigned i = 0; i < $2->size(); i++) { - if (ETy != (*$2)[i]->getType()) - GEN_ERROR("Element #" + utostr(i) + " is not of type '" + - ETy->getDescription() +"' as required!\nIt is of type '" + - (*$2)[i]->getType()->getDescription() + "'."); - } - - $$ = ValID::create(ConstantVector::get(pt, *$2)); - delete PTy; delete $2; - CHECK_FOR_ERROR - } - | '[' ConstVector ']' { // Nonempty unsized arr - const Type *ETy = (*$2)[0]->getType(); - uint64_t NumElements = $2->size(); - - if (!ETy->isFirstClassType()) - GEN_ERROR("Invalid array element type: " + ETy->getDescription()); - - ArrayType *ATy = ArrayType::get(ETy, NumElements); - PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(ATy)); - - // Verify all elements are correct type! - for (unsigned i = 0; i < $2->size(); i++) { - if (ETy != (*$2)[i]->getType()) - GEN_ERROR("Element #" + utostr(i) + " is not of type '" + - ETy->getDescription() +"' as required!\nIt is of type '"+ - (*$2)[i]->getType()->getDescription() + "'."); - } - - $$ = ValID::create(ConstantArray::get(ATy, *$2)); - delete PTy; delete $2; - CHECK_FOR_ERROR - } - | '[' ']' { - // Use undef instead of an array because it's inconvenient to determine - // the element type at this point, there being no elements to examine. - $$ = ValID::createUndef(); - CHECK_FOR_ERROR - } - | 'c' STRINGCONSTANT { - uint64_t NumElements = $2->length(); - const Type *ETy = Type::Int8Ty; - - ArrayType *ATy = ArrayType::get(ETy, NumElements); - - std::vector<Constant*> Vals; - for (unsigned i = 0; i < $2->length(); ++i) - Vals.push_back(ConstantInt::get(ETy, (*$2)[i])); - delete $2; - $$ = ValID::create(ConstantArray::get(ATy, Vals)); - CHECK_FOR_ERROR - } - | '{' ConstVector '}' { - std::vector<const Type*> Elements($2->size()); - for (unsigned i = 0, e = $2->size(); i != e; ++i) - Elements[i] = (*$2)[i]->getType(); - - const StructType *STy = StructType::get(Elements); - PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy)); - - $$ = ValID::create(ConstantStruct::get(STy, *$2)); - delete PTy; delete $2; - CHECK_FOR_ERROR - } - | '{' '}' { - const StructType *STy = StructType::get(std::vector<const Type*>()); - $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>())); - CHECK_FOR_ERROR - } - | '<' '{' ConstVector '}' '>' { - std::vector<const Type*> Elements($3->size()); - for (unsigned i = 0, e = $3->size(); i != e; ++i) - Elements[i] = (*$3)[i]->getType(); - - const StructType *STy = StructType::get(Elements, /*isPacked=*/true); - PATypeHolder* PTy = new PATypeHolder(HandleUpRefs(STy)); - - $$ = ValID::create(ConstantStruct::get(STy, *$3)); - delete PTy; delete $3; - CHECK_FOR_ERROR - } - | '<' '{' '}' '>' { - const StructType *STy = StructType::get(std::vector<const Type*>(), - /*isPacked=*/true); - $$ = ValID::create(ConstantStruct::get(STy, std::vector<Constant*>())); - CHECK_FOR_ERROR - } - | ConstExpr { - $$ = ValID::create($1); - CHECK_FOR_ERROR - } - | ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT { - $$ = ValID::createInlineAsm(*$3, *$5, $2); - delete $3; - delete $5; - CHECK_FOR_ERROR - }; - -// SymbolicValueRef - Reference to one of two ways of symbolically refering to -// another value. -// -SymbolicValueRef : LOCALVAL_ID { // Is it an integer reference...? - $$ = ValID::createLocalID($1); - CHECK_FOR_ERROR - } - | GLOBALVAL_ID { - $$ = ValID::createGlobalID($1); - CHECK_FOR_ERROR - } - | LocalName { // Is it a named reference...? - $$ = ValID::createLocalName(*$1); - delete $1; - CHECK_FOR_ERROR - } - | GlobalName { // Is it a named reference...? - $$ = ValID::createGlobalName(*$1); - delete $1; - CHECK_FOR_ERROR - }; - -// ValueRef - A reference to a definition... either constant or symbolic -ValueRef : SymbolicValueRef | ConstValueRef; - - -// ResolvedVal - a <type> <value> pair. This is used only in cases where the -// type immediately preceeds the value reference, and allows complex constant -// pool references (for things like: 'ret [2 x int] [ int 12, int 42]') -ResolvedVal : Types ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - $$ = getVal(*$1, $2); - delete $1; - CHECK_FOR_ERROR - } - ; - -ReturnedVal : ResolvedVal { - $$ = new std::vector<Value *>(); - $$->push_back($1); - CHECK_FOR_ERROR - } - | ReturnedVal ',' ResolvedVal { - ($$=$1)->push_back($3); - CHECK_FOR_ERROR - }; - -BasicBlockList : BasicBlockList BasicBlock { - $$ = $1; - CHECK_FOR_ERROR - } - | FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks - $$ = $1; - CHECK_FOR_ERROR - }; - - -// Basic blocks are terminated by branching instructions: -// br, br/cc, switch, ret -// -BasicBlock : InstructionList OptLocalAssign BBTerminatorInst { - setValueName($3, $2); - CHECK_FOR_ERROR - InsertValue($3); - $1->getInstList().push_back($3); - $$ = $1; - CHECK_FOR_ERROR - }; - -BasicBlock : InstructionList LocalNumber BBTerminatorInst { - CHECK_FOR_ERROR - int ValNum = InsertValue($3); - if (ValNum != (int)$2) - GEN_ERROR("Result value number %" + utostr($2) + - " is incorrect, expected %" + utostr((unsigned)ValNum)); - - $1->getInstList().push_back($3); - $$ = $1; - CHECK_FOR_ERROR -}; - - -InstructionList : InstructionList Inst { - if (CastInst *CI1 = dyn_cast<CastInst>($2)) - if (CastInst *CI2 = dyn_cast<CastInst>(CI1->getOperand(0))) - if (CI2->getParent() == 0) - $1->getInstList().push_back(CI2); - $1->getInstList().push_back($2); - $$ = $1; - CHECK_FOR_ERROR - } - | /* empty */ { // Empty space between instruction lists - $$ = defineBBVal(ValID::createLocalID(CurFun.NextValNum)); - CHECK_FOR_ERROR - } - | LABELSTR { // Labelled (named) basic block - $$ = defineBBVal(ValID::createLocalName(*$1)); - delete $1; - CHECK_FOR_ERROR - - }; - -BBTerminatorInst : - RET ReturnedVal { // Return with a result... - ValueList &VL = *$2; - assert(!VL.empty() && "Invalid ret operands!"); - const Type *ReturnType = CurFun.CurrentFunction->getReturnType(); - if (VL.size() > 1 || - (isa<StructType>(ReturnType) && - (VL.empty() || VL[0]->getType() != ReturnType))) { - Value *RV = UndefValue::get(ReturnType); - for (unsigned i = 0, e = VL.size(); i != e; ++i) { - Instruction *I = InsertValueInst::Create(RV, VL[i], i, "mrv"); - ($<BasicBlockVal>-1)->getInstList().push_back(I); - RV = I; - } - $$ = ReturnInst::Create(RV); - } else { - $$ = ReturnInst::Create(VL[0]); - } - delete $2; - CHECK_FOR_ERROR - } - | RET VOID { // Return with no result... - $$ = ReturnInst::Create(); - CHECK_FOR_ERROR - } - | BR LABEL ValueRef { // Unconditional Branch... - BasicBlock* tmpBB = getBBVal($3); - CHECK_FOR_ERROR - $$ = BranchInst::Create(tmpBB); - } // Conditional Branch... - | BR INTTYPE ValueRef ',' LABEL ValueRef ',' LABEL ValueRef { - if (cast<IntegerType>($2)->getBitWidth() != 1) - GEN_ERROR("Branch condition must have type i1"); - BasicBlock* tmpBBA = getBBVal($6); - CHECK_FOR_ERROR - BasicBlock* tmpBBB = getBBVal($9); - CHECK_FOR_ERROR - Value* tmpVal = getVal(Type::Int1Ty, $3); - CHECK_FOR_ERROR - $$ = BranchInst::Create(tmpBBA, tmpBBB, tmpVal); - } - | SWITCH INTTYPE ValueRef ',' LABEL ValueRef '[' JumpTable ']' { - Value* tmpVal = getVal($2, $3); - CHECK_FOR_ERROR - BasicBlock* tmpBB = getBBVal($6); - CHECK_FOR_ERROR - SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, $8->size()); - $$ = S; - - std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(), - E = $8->end(); - for (; I != E; ++I) { - if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first)) - S->addCase(CI, I->second); - else - GEN_ERROR("Switch case is constant, but not a simple integer"); - } - delete $8; - CHECK_FOR_ERROR - } - | SWITCH INTTYPE ValueRef ',' LABEL ValueRef '[' ']' { - Value* tmpVal = getVal($2, $3); - CHECK_FOR_ERROR - BasicBlock* tmpBB = getBBVal($6); - CHECK_FOR_ERROR - SwitchInst *S = SwitchInst::Create(tmpVal, tmpBB, 0); - $$ = S; - CHECK_FOR_ERROR - } - | INVOKE OptCallingConv OptRetAttrs ResultTypes ValueRef '(' ParamList ')' - OptFuncAttrs TO LABEL ValueRef UNWIND LABEL ValueRef { - - // Handle the short syntax - const PointerType *PFTy = 0; - const FunctionType *Ty = 0; - if (!(PFTy = dyn_cast<PointerType>($4->get())) || - !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) { - // Pull out the types of all of the arguments... - std::vector<const Type*> ParamTypes; - ParamList::iterator I = $7->begin(), E = $7->end(); - for (; I != E; ++I) { - const Type *Ty = I->Val->getType(); - if (Ty == Type::VoidTy) - GEN_ERROR("Short call syntax cannot be used with varargs"); - ParamTypes.push_back(Ty); - } - - if (!FunctionType::isValidReturnType(*$4)) - GEN_ERROR("Invalid result type for LLVM function"); - - Ty = FunctionType::get($4->get(), ParamTypes, false); - PFTy = PointerType::getUnqual(Ty); - } - - delete $4; - - Value *V = getVal(PFTy, $5); // Get the function we're calling... - CHECK_FOR_ERROR - BasicBlock *Normal = getBBVal($12); - CHECK_FOR_ERROR - BasicBlock *Except = getBBVal($15); - CHECK_FOR_ERROR - - SmallVector<AttributeWithIndex, 8> Attrs; - //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function - //attributes. - Attributes RetAttrs = $3; - if ($9 != Attribute::None) { - if ($9 & Attribute::ZExt) { - RetAttrs = RetAttrs | Attribute::ZExt; - $9 = $9 ^ Attribute::ZExt; - } - if ($9 & Attribute::SExt) { - RetAttrs = RetAttrs | Attribute::SExt; - $9 = $9 ^ Attribute::SExt; - } - if ($9 & Attribute::InReg) { - RetAttrs = RetAttrs | Attribute::InReg; - $9 = $9 ^ Attribute::InReg; - } - } - if (RetAttrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(0, RetAttrs)); - - // Check the arguments - ValueList Args; - if ($7->empty()) { // Has no arguments? - // Make sure no arguments is a good thing! - if (Ty->getNumParams() != 0) - GEN_ERROR("No arguments passed to a function that " - "expects arguments"); - } else { // Has arguments? - // Loop through FunctionType's arguments and ensure they are specified - // correctly! - FunctionType::param_iterator I = Ty->param_begin(); - FunctionType::param_iterator E = Ty->param_end(); - ParamList::iterator ArgI = $7->begin(), ArgE = $7->end(); - unsigned index = 1; - - for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) { - if (ArgI->Val->getType() != *I) - GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" + - (*I)->getDescription() + "'"); - Args.push_back(ArgI->Val); - if (ArgI->Attrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs)); - } - - if (Ty->isVarArg()) { - if (I == E) - for (; ArgI != ArgE; ++ArgI, ++index) { - Args.push_back(ArgI->Val); // push the remaining varargs - if (ArgI->Attrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs)); - } - } else if (I != E || ArgI != ArgE) - GEN_ERROR("Invalid number of parameters detected"); - } - if ($9 != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(~0, $9)); - AttrListPtr PAL; - if (!Attrs.empty()) - PAL = AttrListPtr::get(Attrs.begin(), Attrs.end()); - - // Create the InvokeInst - InvokeInst *II = InvokeInst::Create(V, Normal, Except, - Args.begin(), Args.end()); - II->setCallingConv($2); - II->setAttributes(PAL); - $$ = II; - delete $7; - CHECK_FOR_ERROR - } - | UNWIND { - $$ = new UnwindInst(); - CHECK_FOR_ERROR - } - | UNREACHABLE { - $$ = new UnreachableInst(); - CHECK_FOR_ERROR - }; - - - -JumpTable : JumpTable INTTYPE ConstValueRef ',' LABEL ValueRef { - $$ = $1; - Constant *V = cast<Constant>(getExistingVal($2, $3)); - CHECK_FOR_ERROR - if (V == 0) - GEN_ERROR("May only switch on a constant pool value"); - - BasicBlock* tmpBB = getBBVal($6); - CHECK_FOR_ERROR - $$->push_back(std::make_pair(V, tmpBB)); - } - | INTTYPE ConstValueRef ',' LABEL ValueRef { - $$ = new std::vector<std::pair<Constant*, BasicBlock*> >(); - Constant *V = cast<Constant>(getExistingVal($1, $2)); - CHECK_FOR_ERROR - - if (V == 0) - GEN_ERROR("May only switch on a constant pool value"); - - BasicBlock* tmpBB = getBBVal($5); - CHECK_FOR_ERROR - $$->push_back(std::make_pair(V, tmpBB)); - }; - -Inst : OptLocalAssign InstVal { - // Is this definition named?? if so, assign the name... - setValueName($2, $1); - CHECK_FOR_ERROR - InsertValue($2); - $$ = $2; - CHECK_FOR_ERROR - }; - -Inst : LocalNumber InstVal { - CHECK_FOR_ERROR - int ValNum = InsertValue($2); - - if (ValNum != (int)$1) - GEN_ERROR("Result value number %" + utostr($1) + - " is incorrect, expected %" + utostr((unsigned)ValNum)); - - $$ = $2; - CHECK_FOR_ERROR - }; - - -PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - $$ = new std::list<std::pair<Value*, BasicBlock*> >(); - Value* tmpVal = getVal(*$1, $3); - CHECK_FOR_ERROR - BasicBlock* tmpBB = getBBVal($5); - CHECK_FOR_ERROR - $$->push_back(std::make_pair(tmpVal, tmpBB)); - delete $1; - } - | PHIList ',' '[' ValueRef ',' ValueRef ']' { - $$ = $1; - Value* tmpVal = getVal($1->front().first->getType(), $4); - CHECK_FOR_ERROR - BasicBlock* tmpBB = getBBVal($6); - CHECK_FOR_ERROR - $1->push_back(std::make_pair(tmpVal, tmpBB)); - }; - - -ParamList : Types OptAttributes ValueRef OptAttributes { - // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0 - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription()); - // Used for call and invoke instructions - $$ = new ParamList(); - ParamListEntry E; E.Attrs = $2 | $4; E.Val = getVal($1->get(), $3); - $$->push_back(E); - delete $1; - CHECK_FOR_ERROR - } - | LABEL OptAttributes ValueRef OptAttributes { - // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0 - // Labels are only valid in ASMs - $$ = new ParamList(); - ParamListEntry E; E.Attrs = $2 | $4; E.Val = getBBVal($3); - $$->push_back(E); - CHECK_FOR_ERROR - } - | ParamList ',' Types OptAttributes ValueRef OptAttributes { - // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0 - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - $$ = $1; - ParamListEntry E; E.Attrs = $4 | $6; E.Val = getVal($3->get(), $5); - $$->push_back(E); - delete $3; - CHECK_FOR_ERROR - } - | ParamList ',' LABEL OptAttributes ValueRef OptAttributes { - // FIXME: Remove trailing OptAttributes in LLVM 3.0, it was a mistake in 2.0 - $$ = $1; - ParamListEntry E; E.Attrs = $4 | $6; E.Val = getBBVal($5); - $$->push_back(E); - CHECK_FOR_ERROR - } - | /*empty*/ { $$ = new ParamList(); }; - -IndexList // Used for gep instructions and constant expressions - : /*empty*/ { $$ = new std::vector<Value*>(); } - | IndexList ',' ResolvedVal { - $$ = $1; - $$->push_back($3); - CHECK_FOR_ERROR - } - ; - -ConstantIndexList // Used for insertvalue and extractvalue instructions - : ',' EUINT64VAL { - $$ = new std::vector<unsigned>(); - if ((unsigned)$2 != $2) - GEN_ERROR("Index " + utostr($2) + " is not valid for insertvalue or extractvalue."); - $$->push_back($2); - } - | ConstantIndexList ',' EUINT64VAL { - $$ = $1; - if ((unsigned)$3 != $3) - GEN_ERROR("Index " + utostr($3) + " is not valid for insertvalue or extractvalue."); - $$->push_back($3); - CHECK_FOR_ERROR - } - ; - -OptTailCall : TAIL CALL { - $$ = true; - CHECK_FOR_ERROR - } - | CALL { - $$ = false; - CHECK_FOR_ERROR - }; - -InstVal : ArithmeticOps Types ValueRef ',' ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() && - !isa<VectorType>((*$2).get())) - GEN_ERROR( - "Arithmetic operator requires integer, FP, or packed operands"); - Value* val1 = getVal(*$2, $3); - CHECK_FOR_ERROR - Value* val2 = getVal(*$2, $5); - CHECK_FOR_ERROR - $$ = BinaryOperator::Create($1, val1, val2); - if ($$ == 0) - GEN_ERROR("binary operator returned null"); - delete $2; - } - | LogicalOps Types ValueRef ',' ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if (!(*$2)->isInteger()) { - if (!isa<VectorType>($2->get()) || - !cast<VectorType>($2->get())->getElementType()->isInteger()) - GEN_ERROR("Logical operator requires integral operands"); - } - Value* tmpVal1 = getVal(*$2, $3); - CHECK_FOR_ERROR - Value* tmpVal2 = getVal(*$2, $5); - CHECK_FOR_ERROR - $$ = BinaryOperator::Create($1, tmpVal1, tmpVal2); - if ($$ == 0) - GEN_ERROR("binary operator returned null"); - delete $2; - } - | ICMP IPredicates Types ValueRef ',' ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - Value* tmpVal1 = getVal(*$3, $4); - CHECK_FOR_ERROR - Value* tmpVal2 = getVal(*$3, $6); - CHECK_FOR_ERROR - $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2); - if ($$ == 0) - GEN_ERROR("icmp operator returned null"); - delete $3; - } - | FCMP FPredicates Types ValueRef ',' ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - Value* tmpVal1 = getVal(*$3, $4); - CHECK_FOR_ERROR - Value* tmpVal2 = getVal(*$3, $6); - CHECK_FOR_ERROR - $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2); - if ($$ == 0) - GEN_ERROR("fcmp operator returned null"); - delete $3; - } - | VICMP IPredicates Types ValueRef ',' ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - if (!isa<VectorType>((*$3).get())) - GEN_ERROR("Scalar types not supported by vicmp instruction"); - Value* tmpVal1 = getVal(*$3, $4); - CHECK_FOR_ERROR - Value* tmpVal2 = getVal(*$3, $6); - CHECK_FOR_ERROR - $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2); - if ($$ == 0) - GEN_ERROR("vicmp operator returned null"); - delete $3; - } - | VFCMP FPredicates Types ValueRef ',' ValueRef { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - if (!isa<VectorType>((*$3).get())) - GEN_ERROR("Scalar types not supported by vfcmp instruction"); - Value* tmpVal1 = getVal(*$3, $4); - CHECK_FOR_ERROR - Value* tmpVal2 = getVal(*$3, $6); - CHECK_FOR_ERROR - $$ = CmpInst::Create($1, $2, tmpVal1, tmpVal2); - if ($$ == 0) - GEN_ERROR("vfcmp operator returned null"); - delete $3; - } - | CastOps ResolvedVal TO Types { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription()); - Value* Val = $2; - const Type* DestTy = $4->get(); - if (!CastInst::castIsValid($1, Val, DestTy)) - GEN_ERROR("invalid cast opcode for cast from '" + - Val->getType()->getDescription() + "' to '" + - DestTy->getDescription() + "'"); - $$ = CastInst::Create($1, Val, DestTy); - delete $4; - } - | SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal { - if (isa<VectorType>($2->getType())) { - // vector select - if (!isa<VectorType>($4->getType()) - || !isa<VectorType>($6->getType()) ) - GEN_ERROR("vector select value types must be vector types"); - const VectorType* cond_type = cast<VectorType>($2->getType()); - const VectorType* select_type = cast<VectorType>($4->getType()); - if (cond_type->getElementType() != Type::Int1Ty) - GEN_ERROR("vector select condition element type must be boolean"); - if (cond_type->getNumElements() != select_type->getNumElements()) - GEN_ERROR("vector select number of elements must be the same"); - } else { - if ($2->getType() != Type::Int1Ty) - GEN_ERROR("select condition must be boolean"); - } - if ($4->getType() != $6->getType()) - GEN_ERROR("select value types must match"); - $$ = SelectInst::Create($2, $4, $6); - CHECK_FOR_ERROR - } - | VAARG ResolvedVal ',' Types { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$4)->getDescription()); - $$ = new VAArgInst($2, *$4); - delete $4; - CHECK_FOR_ERROR - } - | EXTRACTELEMENT ResolvedVal ',' ResolvedVal { - if (!ExtractElementInst::isValidOperands($2, $4)) - GEN_ERROR("Invalid extractelement operands"); - $$ = new ExtractElementInst($2, $4); - CHECK_FOR_ERROR - } - | INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal { - if (!InsertElementInst::isValidOperands($2, $4, $6)) - GEN_ERROR("Invalid insertelement operands"); - $$ = InsertElementInst::Create($2, $4, $6); - CHECK_FOR_ERROR - } - | SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal { - if (!ShuffleVectorInst::isValidOperands($2, $4, $6)) - GEN_ERROR("Invalid shufflevector operands"); - $$ = new ShuffleVectorInst($2, $4, $6); - CHECK_FOR_ERROR - } - | PHI_TOK PHIList { - const Type *Ty = $2->front().first->getType(); - if (!Ty->isFirstClassType()) - GEN_ERROR("PHI node operands must be of first class type"); - $$ = PHINode::Create(Ty); - ((PHINode*)$$)->reserveOperandSpace($2->size()); - while ($2->begin() != $2->end()) { - if ($2->front().first->getType() != Ty) - GEN_ERROR("All elements of a PHI node must be of the same type"); - cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second); - $2->pop_front(); - } - delete $2; // Free the list... - CHECK_FOR_ERROR - } - | OptTailCall OptCallingConv OptRetAttrs ResultTypes ValueRef '(' ParamList ')' - OptFuncAttrs { - - // Handle the short syntax - const PointerType *PFTy = 0; - const FunctionType *Ty = 0; - if (!(PFTy = dyn_cast<PointerType>($4->get())) || - !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) { - // Pull out the types of all of the arguments... - std::vector<const Type*> ParamTypes; - ParamList::iterator I = $7->begin(), E = $7->end(); - for (; I != E; ++I) { - const Type *Ty = I->Val->getType(); - if (Ty == Type::VoidTy) - GEN_ERROR("Short call syntax cannot be used with varargs"); - ParamTypes.push_back(Ty); - } - - if (!FunctionType::isValidReturnType(*$4)) - GEN_ERROR("Invalid result type for LLVM function"); - - Ty = FunctionType::get($4->get(), ParamTypes, false); - PFTy = PointerType::getUnqual(Ty); - } - - Value *V = getVal(PFTy, $5); // Get the function we're calling... - CHECK_FOR_ERROR - - // Check for call to invalid intrinsic to avoid crashing later. - if (Function *theF = dyn_cast<Function>(V)) { - if (theF->hasName() && (theF->getValueName()->getKeyLength() >= 5) && - (0 == strncmp(theF->getValueName()->getKeyData(), "llvm.", 5)) && - !theF->getIntrinsicID(true)) - GEN_ERROR("Call to invalid LLVM intrinsic function '" + - theF->getName() + "'"); - } - - // Set up the Attributes for the function - SmallVector<AttributeWithIndex, 8> Attrs; - //FIXME : In 3.0, stop accepting zext, sext and inreg as optional function - //attributes. - Attributes RetAttrs = $3; - if ($9 != Attribute::None) { - if ($9 & Attribute::ZExt) { - RetAttrs = RetAttrs | Attribute::ZExt; - $9 = $9 ^ Attribute::ZExt; - } - if ($9 & Attribute::SExt) { - RetAttrs = RetAttrs | Attribute::SExt; - $9 = $9 ^ Attribute::SExt; - } - if ($9 & Attribute::InReg) { - RetAttrs = RetAttrs | Attribute::InReg; - $9 = $9 ^ Attribute::InReg; - } - } - if (RetAttrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(0, RetAttrs)); - - // Check the arguments - ValueList Args; - if ($7->empty()) { // Has no arguments? - // Make sure no arguments is a good thing! - if (Ty->getNumParams() != 0) - GEN_ERROR("No arguments passed to a function that " - "expects arguments"); - } else { // Has arguments? - // Loop through FunctionType's arguments and ensure they are specified - // correctly. Also, gather any parameter attributes. - FunctionType::param_iterator I = Ty->param_begin(); - FunctionType::param_iterator E = Ty->param_end(); - ParamList::iterator ArgI = $7->begin(), ArgE = $7->end(); - unsigned index = 1; - - for (; ArgI != ArgE && I != E; ++ArgI, ++I, ++index) { - if (ArgI->Val->getType() != *I) - GEN_ERROR("Parameter " + ArgI->Val->getName()+ " is not of type '" + - (*I)->getDescription() + "'"); - Args.push_back(ArgI->Val); - if (ArgI->Attrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs)); - } - if (Ty->isVarArg()) { - if (I == E) - for (; ArgI != ArgE; ++ArgI, ++index) { - Args.push_back(ArgI->Val); // push the remaining varargs - if (ArgI->Attrs != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(index, ArgI->Attrs)); - } - } else if (I != E || ArgI != ArgE) - GEN_ERROR("Invalid number of parameters detected"); - } - if ($9 != Attribute::None) - Attrs.push_back(AttributeWithIndex::get(~0, $9)); - - // Finish off the Attributes and check them - AttrListPtr PAL; - if (!Attrs.empty()) - PAL = AttrListPtr::get(Attrs.begin(), Attrs.end()); - - // Create the call node - CallInst *CI = CallInst::Create(V, Args.begin(), Args.end()); - CI->setTailCall($1); - CI->setCallingConv($2); - CI->setAttributes(PAL); - $$ = CI; - delete $7; - delete $4; - CHECK_FOR_ERROR - } - | MemoryInst { - $$ = $1; - CHECK_FOR_ERROR - }; - -OptVolatile : VOLATILE { - $$ = true; - CHECK_FOR_ERROR - } - | /* empty */ { - $$ = false; - CHECK_FOR_ERROR - }; - - - -MemoryInst : MALLOC Types OptCAlign { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - $$ = new MallocInst(*$2, 0, $3); - delete $2; - CHECK_FOR_ERROR - } - | MALLOC Types ',' INTTYPE ValueRef OptCAlign { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if ($4 != Type::Int32Ty) - GEN_ERROR("Malloc array size is not a 32-bit integer!"); - Value* tmpVal = getVal($4, $5); - CHECK_FOR_ERROR - $$ = new MallocInst(*$2, tmpVal, $6); - delete $2; - } - | ALLOCA Types OptCAlign { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - $$ = new AllocaInst(*$2, 0, $3); - delete $2; - CHECK_FOR_ERROR - } - | ALLOCA Types ',' INTTYPE ValueRef OptCAlign { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if ($4 != Type::Int32Ty) - GEN_ERROR("Alloca array size is not a 32-bit integer!"); - Value* tmpVal = getVal($4, $5); - CHECK_FOR_ERROR - $$ = new AllocaInst(*$2, tmpVal, $6); - delete $2; - } - | FREE ResolvedVal { - if (!isa<PointerType>($2->getType())) - GEN_ERROR("Trying to free nonpointer type " + - $2->getType()->getDescription() + ""); - $$ = new FreeInst($2); - CHECK_FOR_ERROR - } - - | OptVolatile LOAD Types ValueRef OptCAlign { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$3)->getDescription()); - if (!isa<PointerType>($3->get())) - GEN_ERROR("Can't load from nonpointer type: " + - (*$3)->getDescription()); - if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType()) - GEN_ERROR("Can't load from pointer of non-first-class type: " + - (*$3)->getDescription()); - Value* tmpVal = getVal(*$3, $4); - CHECK_FOR_ERROR - $$ = new LoadInst(tmpVal, "", $1, $5); - delete $3; - } - | OptVolatile STORE ResolvedVal ',' Types ValueRef OptCAlign { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$5)->getDescription()); - const PointerType *PT = dyn_cast<PointerType>($5->get()); - if (!PT) - GEN_ERROR("Can't store to a nonpointer type: " + - (*$5)->getDescription()); - const Type *ElTy = PT->getElementType(); - if (ElTy != $3->getType()) - GEN_ERROR("Can't store '" + $3->getType()->getDescription() + - "' into space of type '" + ElTy->getDescription() + "'"); - - Value* tmpVal = getVal(*$5, $6); - CHECK_FOR_ERROR - $$ = new StoreInst($3, tmpVal, $1, $7); - delete $5; - } - | GETRESULT Types ValueRef ',' EUINT64VAL { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get())) - GEN_ERROR("getresult insn requires an aggregate operand"); - if (!ExtractValueInst::getIndexedType(*$2, $5)) - GEN_ERROR("Invalid getresult index for type '" + - (*$2)->getDescription()+ "'"); - - Value *tmpVal = getVal(*$2, $3); - CHECK_FOR_ERROR - $$ = ExtractValueInst::Create(tmpVal, $5); - delete $2; - } - | GETELEMENTPTR Types ValueRef IndexList { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if (!isa<PointerType>($2->get())) - GEN_ERROR("getelementptr insn requires pointer operand"); - - if (!GetElementPtrInst::getIndexedType(*$2, $4->begin(), $4->end())) - GEN_ERROR("Invalid getelementptr indices for type '" + - (*$2)->getDescription()+ "'"); - Value* tmpVal = getVal(*$2, $3); - CHECK_FOR_ERROR - $$ = GetElementPtrInst::Create(tmpVal, $4->begin(), $4->end()); - delete $2; - delete $4; - } - | EXTRACTVALUE Types ValueRef ConstantIndexList { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get())) - GEN_ERROR("extractvalue insn requires an aggregate operand"); - - if (!ExtractValueInst::getIndexedType(*$2, $4->begin(), $4->end())) - GEN_ERROR("Invalid extractvalue indices for type '" + - (*$2)->getDescription()+ "'"); - Value* tmpVal = getVal(*$2, $3); - CHECK_FOR_ERROR - $$ = ExtractValueInst::Create(tmpVal, $4->begin(), $4->end()); - delete $2; - delete $4; - } - | INSERTVALUE Types ValueRef ',' Types ValueRef ConstantIndexList { - if (!UpRefs.empty()) - GEN_ERROR("Invalid upreference in type: " + (*$2)->getDescription()); - if (!isa<StructType>($2->get()) && !isa<ArrayType>($2->get())) - GEN_ERROR("extractvalue insn requires an aggregate operand"); - - if (ExtractValueInst::getIndexedType(*$2, $7->begin(), $7->end()) != $5->get()) - GEN_ERROR("Invalid insertvalue indices for type '" + - (*$2)->getDescription()+ "'"); - Value* aggVal = getVal(*$2, $3); - Value* tmpVal = getVal(*$5, $6); - CHECK_FOR_ERROR - $$ = InsertValueInst::Create(aggVal, tmpVal, $7->begin(), $7->end()); - delete $2; - delete $5; - delete $7; - }; - - -%% - -// common code from the two 'RunVMAsmParser' functions -static Module* RunParser(Module * M) { - CurModule.CurrentModule = M; - // Check to make sure the parser succeeded - if (yyparse()) { - if (ParserResult) - delete ParserResult; - return 0; - } - - // Emit an error if there are any unresolved types left. - if (!CurModule.LateResolveTypes.empty()) { - const ValID &DID = CurModule.LateResolveTypes.begin()->first; - if (DID.Type == ValID::LocalName) { - GenerateError("Undefined type remains at eof: '"+DID.getName() + "'"); - } else { - GenerateError("Undefined type remains at eof: #" + itostr(DID.Num)); - } - if (ParserResult) - delete ParserResult; - return 0; - } - - // Emit an error if there are any unresolved values left. - if (!CurModule.LateResolveValues.empty()) { - Value *V = CurModule.LateResolveValues.back(); - std::map<Value*, std::pair<ValID, int> >::iterator I = - CurModule.PlaceHolderInfo.find(V); - - if (I != CurModule.PlaceHolderInfo.end()) { - ValID &DID = I->second.first; - if (DID.Type == ValID::LocalName) { - GenerateError("Undefined value remains at eof: "+DID.getName() + "'"); - } else { - GenerateError("Undefined value remains at eof: #" + itostr(DID.Num)); - } - if (ParserResult) - delete ParserResult; - return 0; - } - } - - // Check to make sure that parsing produced a result - if (!ParserResult) - return 0; - - // Reset ParserResult variable while saving its value for the result. - Module *Result = ParserResult; - ParserResult = 0; - - return Result; -} - -void llvm::GenerateError(const std::string &message, int LineNo) { - if (LineNo == -1) LineNo = LLLgetLineNo(); - // TODO: column number in exception - if (TheParseError) - TheParseError->setError(LLLgetFilename(), message, LineNo); - TriggerError = 1; -} - -int yyerror(const char *ErrorMsg) { - std::string where = LLLgetFilename() + ":" + utostr(LLLgetLineNo()) + ": "; - std::string errMsg = where + "error: " + std::string(ErrorMsg); - if (yychar != YYEMPTY && yychar != 0) { - errMsg += " while reading token: '"; - errMsg += std::string(LLLgetTokenStart(), - LLLgetTokenStart()+LLLgetTokenLength()) + "'"; - } - GenerateError(errMsg); - return 0; -} |