+++ /dev/null
-//===-- 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;
-}
projects / oota-llvm.git / blobdiff