diff options
Diffstat (limited to 'contrib/llvm/lib/AsmParser/LLParser.cpp')
| -rw-r--r-- | contrib/llvm/lib/AsmParser/LLParser.cpp | 627 |
1 files changed, 440 insertions, 187 deletions
diff --git a/contrib/llvm/lib/AsmParser/LLParser.cpp b/contrib/llvm/lib/AsmParser/LLParser.cpp index 3b903cd..ac6e0e5 100644 --- a/contrib/llvm/lib/AsmParser/LLParser.cpp +++ b/contrib/llvm/lib/AsmParser/LLParser.cpp @@ -13,7 +13,7 @@ #include "LLParser.h" #include "llvm/ADT/SmallPtrSet.h" -#include "llvm/AutoUpgrade.h" +#include "llvm/IR/AutoUpgrade.h" #include "llvm/IR/CallingConv.h" #include "llvm/IR/Constants.h" #include "llvm/IR/DerivedTypes.h" @@ -57,7 +57,8 @@ bool LLParser::ValidateEndOfModule() { for (unsigned i = 0, e = MDList.size(); i != e; ++i) { unsigned SlotNo = MDList[i].MDSlot; - if (SlotNo >= NumberedMetadata.size() || NumberedMetadata[SlotNo] == 0) + if (SlotNo >= NumberedMetadata.size() || + NumberedMetadata[SlotNo] == nullptr) return Error(MDList[i].Loc, "use of undefined metadata '!" + Twine(SlotNo) + "'"); Inst->setMetadata(MDList[i].MDKind, NumberedMetadata[SlotNo]); @@ -132,20 +133,20 @@ bool LLParser::ValidateEndOfModule() { // references after the function was defined. Resolve those now. while (!ForwardRefBlockAddresses.empty()) { // Okay, we are referencing an already-parsed function, resolve them now. - Function *TheFn = 0; + Function *TheFn = nullptr; const ValID &Fn = ForwardRefBlockAddresses.begin()->first; if (Fn.Kind == ValID::t_GlobalName) TheFn = M->getFunction(Fn.StrVal); else if (Fn.UIntVal < NumberedVals.size()) TheFn = dyn_cast<Function>(NumberedVals[Fn.UIntVal]); - if (TheFn == 0) + if (!TheFn) return Error(Fn.Loc, "unknown function referenced by blockaddress"); // Resolve all these references. if (ResolveForwardRefBlockAddresses(TheFn, ForwardRefBlockAddresses.begin()->second, - 0)) + nullptr)) return true; ForwardRefBlockAddresses.erase(ForwardRefBlockAddresses.begin()); @@ -162,6 +163,11 @@ bool LLParser::ValidateEndOfModule() { return Error(I->second.second, "use of undefined type named '" + I->getKey() + "'"); + if (!ForwardRefComdats.empty()) + return Error(ForwardRefComdats.begin()->second, + "use of undefined comdat '$" + + ForwardRefComdats.begin()->first + "'"); + if (!ForwardRefVals.empty()) return Error(ForwardRefVals.begin()->second.second, "use of undefined value '@" + ForwardRefVals.begin()->first + @@ -206,7 +212,7 @@ bool LLParser::ResolveForwardRefBlockAddresses(Function *TheFn, TheFn->getValueSymbolTable().lookup(Refs[i].first.StrVal)); } - if (Res == 0) + if (!Res) return Error(Refs[i].first.Loc, "referenced value is not a basic block"); @@ -237,52 +243,51 @@ bool LLParser::ParseTopLevelEntities() { case lltok::LocalVar: if (ParseNamedType()) return true; break; case lltok::GlobalID: if (ParseUnnamedGlobal()) return true; break; case lltok::GlobalVar: if (ParseNamedGlobal()) return true; break; + case lltok::ComdatVar: if (parseComdat()) return true; break; case lltok::exclaim: if (ParseStandaloneMetadata()) return true; break; case lltok::MetadataVar:if (ParseNamedMetadata()) return true; break; // The Global variable production with no name can have many different // optional leading prefixes, the production is: - // GlobalVar ::= OptionalLinkage OptionalVisibility OptionalThreadLocal - // OptionalAddrSpace OptionalUnNammedAddr + // GlobalVar ::= OptionalLinkage OptionalVisibility OptionalDLLStorageClass + // OptionalThreadLocal OptionalAddrSpace OptionalUnNammedAddr // ('constant'|'global') ... case lltok::kw_private: // OptionalLinkage - case lltok::kw_linker_private: // OptionalLinkage - case lltok::kw_linker_private_weak: // OptionalLinkage case lltok::kw_internal: // OptionalLinkage + case lltok::kw_linker_private: // Obsolete OptionalLinkage + case lltok::kw_linker_private_weak: // Obsolete OptionalLinkage case lltok::kw_weak: // OptionalLinkage case lltok::kw_weak_odr: // OptionalLinkage case lltok::kw_linkonce: // OptionalLinkage case lltok::kw_linkonce_odr: // OptionalLinkage case lltok::kw_appending: // OptionalLinkage - case lltok::kw_dllexport: // OptionalLinkage case lltok::kw_common: // OptionalLinkage - case lltok::kw_dllimport: // OptionalLinkage case lltok::kw_extern_weak: // OptionalLinkage - case lltok::kw_external: { // OptionalLinkage - unsigned Linkage, Visibility; - if (ParseOptionalLinkage(Linkage) || + case lltok::kw_external: // OptionalLinkage + case lltok::kw_default: // OptionalVisibility + case lltok::kw_hidden: // OptionalVisibility + case lltok::kw_protected: // OptionalVisibility + case lltok::kw_dllimport: // OptionalDLLStorageClass + case lltok::kw_dllexport: // OptionalDLLStorageClass + case lltok::kw_thread_local: // OptionalThreadLocal + case lltok::kw_addrspace: // OptionalAddrSpace + case lltok::kw_constant: // GlobalType + case lltok::kw_global: { // GlobalType + unsigned Linkage, Visibility, DLLStorageClass; + bool UnnamedAddr; + GlobalVariable::ThreadLocalMode TLM; + bool HasLinkage; + if (ParseOptionalLinkage(Linkage, HasLinkage) || ParseOptionalVisibility(Visibility) || - ParseGlobal("", SMLoc(), Linkage, true, Visibility)) - return true; - break; - } - case lltok::kw_default: // OptionalVisibility - case lltok::kw_hidden: // OptionalVisibility - case lltok::kw_protected: { // OptionalVisibility - unsigned Visibility; - if (ParseOptionalVisibility(Visibility) || - ParseGlobal("", SMLoc(), 0, false, Visibility)) + ParseOptionalDLLStorageClass(DLLStorageClass) || + ParseOptionalThreadLocal(TLM) || + parseOptionalUnnamedAddr(UnnamedAddr) || + ParseGlobal("", SMLoc(), Linkage, HasLinkage, Visibility, + DLLStorageClass, TLM, UnnamedAddr)) return true; break; } - case lltok::kw_thread_local: // OptionalThreadLocal - case lltok::kw_addrspace: // OptionalAddrSpace - case lltok::kw_constant: // GlobalType - case lltok::kw_global: // GlobalType - if (ParseGlobal("", SMLoc(), 0, false, 0)) return true; - break; - case lltok::kw_attributes: if (ParseUnnamedAttrGrp()) return true; break; } } @@ -364,7 +369,7 @@ bool LLParser::ParseUnnamedType() { if (TypeID >= NumberedTypes.size()) NumberedTypes.resize(TypeID+1); - Type *Result = 0; + Type *Result = nullptr; if (ParseStructDefinition(TypeLoc, "", NumberedTypes[TypeID], Result)) return true; @@ -391,7 +396,7 @@ bool LLParser::ParseNamedType() { ParseToken(lltok::kw_type, "expected 'type' after name")) return true; - Type *Result = 0; + Type *Result = nullptr; if (ParseStructDefinition(NameLoc, Name, NamedTypes[Name], Result)) return true; @@ -446,9 +451,11 @@ bool LLParser::ParseGlobalType(bool &IsConstant) { /// ParseUnnamedGlobal: /// OptionalVisibility ALIAS ... -/// OptionalLinkage OptionalVisibility ... -> global variable +/// OptionalLinkage OptionalVisibility OptionalDLLStorageClass +/// ... -> global variable /// GlobalID '=' OptionalVisibility ALIAS ... -/// GlobalID '=' OptionalLinkage OptionalVisibility ... -> global variable +/// GlobalID '=' OptionalLinkage OptionalVisibility OptionalDLLStorageClass +/// ... -> global variable bool LLParser::ParseUnnamedGlobal() { unsigned VarID = NumberedVals.size(); std::string Name; @@ -466,19 +473,27 @@ bool LLParser::ParseUnnamedGlobal() { } bool HasLinkage; - unsigned Linkage, Visibility; + unsigned Linkage, Visibility, DLLStorageClass; + GlobalVariable::ThreadLocalMode TLM; + bool UnnamedAddr; if (ParseOptionalLinkage(Linkage, HasLinkage) || - ParseOptionalVisibility(Visibility)) + ParseOptionalVisibility(Visibility) || + ParseOptionalDLLStorageClass(DLLStorageClass) || + ParseOptionalThreadLocal(TLM) || + parseOptionalUnnamedAddr(UnnamedAddr)) return true; if (HasLinkage || Lex.getKind() != lltok::kw_alias) - return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility); - return ParseAlias(Name, NameLoc, Visibility); + return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility, + DLLStorageClass, TLM, UnnamedAddr); + return ParseAlias(Name, NameLoc, Visibility, DLLStorageClass, TLM, + UnnamedAddr); } /// ParseNamedGlobal: /// GlobalVar '=' OptionalVisibility ALIAS ... -/// GlobalVar '=' OptionalLinkage OptionalVisibility ... -> global variable +/// GlobalVar '=' OptionalLinkage OptionalVisibility OptionalDLLStorageClass +/// ... -> global variable bool LLParser::ParseNamedGlobal() { assert(Lex.getKind() == lltok::GlobalVar); LocTy NameLoc = Lex.getLoc(); @@ -486,15 +501,72 @@ bool LLParser::ParseNamedGlobal() { Lex.Lex(); bool HasLinkage; - unsigned Linkage, Visibility; + unsigned Linkage, Visibility, DLLStorageClass; + GlobalVariable::ThreadLocalMode TLM; + bool UnnamedAddr; if (ParseToken(lltok::equal, "expected '=' in global variable") || ParseOptionalLinkage(Linkage, HasLinkage) || - ParseOptionalVisibility(Visibility)) + ParseOptionalVisibility(Visibility) || + ParseOptionalDLLStorageClass(DLLStorageClass) || + ParseOptionalThreadLocal(TLM) || + parseOptionalUnnamedAddr(UnnamedAddr)) return true; if (HasLinkage || Lex.getKind() != lltok::kw_alias) - return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility); - return ParseAlias(Name, NameLoc, Visibility); + return ParseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility, + DLLStorageClass, TLM, UnnamedAddr); + return ParseAlias(Name, NameLoc, Visibility, DLLStorageClass, TLM, + UnnamedAddr); +} + +bool LLParser::parseComdat() { + assert(Lex.getKind() == lltok::ComdatVar); + std::string Name = Lex.getStrVal(); + LocTy NameLoc = Lex.getLoc(); + Lex.Lex(); + + if (ParseToken(lltok::equal, "expected '=' here")) + return true; + + if (ParseToken(lltok::kw_comdat, "expected comdat keyword")) + return TokError("expected comdat type"); + + Comdat::SelectionKind SK; + switch (Lex.getKind()) { + default: + return TokError("unknown selection kind"); + case lltok::kw_any: + SK = Comdat::Any; + break; + case lltok::kw_exactmatch: + SK = Comdat::ExactMatch; + break; + case lltok::kw_largest: + SK = Comdat::Largest; + break; + case lltok::kw_noduplicates: + SK = Comdat::NoDuplicates; + break; + case lltok::kw_samesize: + SK = Comdat::SameSize; + break; + } + Lex.Lex(); + + // See if the comdat was forward referenced, if so, use the comdat. + Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable(); + Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name); + if (I != ComdatSymTab.end() && !ForwardRefComdats.erase(Name)) + return Error(NameLoc, "redefinition of comdat '$" + Name + "'"); + + Comdat *C; + if (I != ComdatSymTab.end()) + C = &I->second; + else + C = M->getOrInsertComdat(Name); + C->setSelectionKind(SK); + + return false; } // MDString: @@ -502,6 +574,7 @@ bool LLParser::ParseNamedGlobal() { bool LLParser::ParseMDString(MDString *&Result) { std::string Str; if (ParseStringConstant(Str)) return true; + llvm::UpgradeMDStringConstant(Str); Result = MDString::get(Context, Str); return false; } @@ -516,10 +589,10 @@ bool LLParser::ParseMDNodeID(MDNode *&Result, unsigned &SlotNo) { if (ParseUInt32(SlotNo)) return true; // Check existing MDNode. - if (SlotNo < NumberedMetadata.size() && NumberedMetadata[SlotNo] != 0) + if (SlotNo < NumberedMetadata.size() && NumberedMetadata[SlotNo] != nullptr) Result = NumberedMetadata[SlotNo]; else - Result = 0; + Result = nullptr; return false; } @@ -560,7 +633,7 @@ bool LLParser::ParseNamedMetadata() { if (ParseToken(lltok::exclaim, "Expected '!' here")) return true; - MDNode *N = 0; + MDNode *N = nullptr; if (ParseMDNodeID(N)) return true; NMD->addOperand(N); } while (EatIfPresent(lltok::comma)); @@ -579,14 +652,14 @@ bool LLParser::ParseStandaloneMetadata() { unsigned MetadataID = 0; LocTy TyLoc; - Type *Ty = 0; + Type *Ty = nullptr; SmallVector<Value *, 16> Elts; if (ParseUInt32(MetadataID) || ParseToken(lltok::equal, "expected '=' here") || ParseType(Ty, TyLoc) || ParseToken(lltok::exclaim, "Expected '!' here") || ParseToken(lltok::lbrace, "Expected '{' here") || - ParseMDNodeVector(Elts, NULL) || + ParseMDNodeVector(Elts, nullptr) || ParseToken(lltok::rbrace, "expected end of metadata node")) return true; @@ -606,7 +679,7 @@ bool LLParser::ParseStandaloneMetadata() { if (MetadataID >= NumberedMetadata.size()) NumberedMetadata.resize(MetadataID+1); - if (NumberedMetadata[MetadataID] != 0) + if (NumberedMetadata[MetadataID] != nullptr) return TokError("Metadata id is already used"); NumberedMetadata[MetadataID] = Init; } @@ -614,17 +687,25 @@ bool LLParser::ParseStandaloneMetadata() { return false; } +static bool isValidVisibilityForLinkage(unsigned V, unsigned L) { + return !GlobalValue::isLocalLinkage((GlobalValue::LinkageTypes)L) || + (GlobalValue::VisibilityTypes)V == GlobalValue::DefaultVisibility; +} + /// ParseAlias: -/// ::= GlobalVar '=' OptionalVisibility 'alias' OptionalLinkage Aliasee +/// ::= GlobalVar '=' OptionalVisibility OptionalDLLStorageClass +/// OptionalThreadLocal OptionalUnNammedAddr 'alias' +/// OptionalLinkage Aliasee +/// /// Aliasee /// ::= TypeAndValue -/// ::= 'bitcast' '(' TypeAndValue 'to' Type ')' -/// ::= 'getelementptr' 'inbounds'? '(' ... ')' /// -/// Everything through visibility has already been parsed. +/// Everything through OptionalUnNammedAddr has already been parsed. /// bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc, - unsigned Visibility) { + unsigned Visibility, unsigned DLLStorageClass, + GlobalVariable::ThreadLocalMode TLM, + bool UnnamedAddr) { assert(Lex.getKind() == lltok::kw_alias); Lex.Lex(); LocTy LinkageLoc = Lex.getLoc(); @@ -637,28 +718,43 @@ bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc, if(!GlobalAlias::isValidLinkage(Linkage)) return Error(LinkageLoc, "invalid linkage type for alias"); + if (!isValidVisibilityForLinkage(Visibility, L)) + return Error(LinkageLoc, + "symbol with local linkage must have default visibility"); + Constant *Aliasee; LocTy AliaseeLoc = Lex.getLoc(); if (Lex.getKind() != lltok::kw_bitcast && - Lex.getKind() != lltok::kw_getelementptr) { - if (ParseGlobalTypeAndValue(Aliasee)) return true; + Lex.getKind() != lltok::kw_getelementptr && + Lex.getKind() != lltok::kw_addrspacecast && + Lex.getKind() != lltok::kw_inttoptr) { + if (ParseGlobalTypeAndValue(Aliasee)) + return true; } else { // The bitcast dest type is not present, it is implied by the dest type. ValID ID; - if (ParseValID(ID)) return true; + if (ParseValID(ID)) + return true; if (ID.Kind != ValID::t_Constant) return Error(AliaseeLoc, "invalid aliasee"); Aliasee = ID.ConstantVal; } - if (!Aliasee->getType()->isPointerTy()) - return Error(AliaseeLoc, "alias must have pointer type"); + Type *AliaseeType = Aliasee->getType(); + auto *PTy = dyn_cast<PointerType>(AliaseeType); + if (!PTy) + return Error(AliaseeLoc, "An alias must have pointer type"); + Type *Ty = PTy->getElementType(); + unsigned AddrSpace = PTy->getAddressSpace(); // Okay, create the alias but do not insert it into the module yet. - GlobalAlias* GA = new GlobalAlias(Aliasee->getType(), - (GlobalValue::LinkageTypes)Linkage, Name, - Aliasee); + std::unique_ptr<GlobalAlias> GA( + GlobalAlias::create(Ty, AddrSpace, (GlobalValue::LinkageTypes)Linkage, + Name, Aliasee, /*Parent*/ nullptr)); + GA->setThreadLocalMode(TLM); GA->setVisibility((GlobalValue::VisibilityTypes)Visibility); + GA->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); + GA->setUnnamedAddr(UnnamedAddr); // See if this value already exists in the symbol table. If so, it is either // a redefinition or a definition of a forward reference. @@ -678,43 +774,48 @@ bool LLParser::ParseAlias(const std::string &Name, LocTy NameLoc, // If they agree, just RAUW the old value with the alias and remove the // forward ref info. - Val->replaceAllUsesWith(GA); + Val->replaceAllUsesWith(GA.get()); Val->eraseFromParent(); ForwardRefVals.erase(I); } // Insert into the module, we know its name won't collide now. - M->getAliasList().push_back(GA); + M->getAliasList().push_back(GA.get()); assert(GA->getName() == Name && "Should not be a name conflict!"); + // The module owns this now + GA.release(); + return false; } /// ParseGlobal -/// ::= GlobalVar '=' OptionalLinkage OptionalVisibility OptionalThreadLocal -/// OptionalAddrSpace OptionalUnNammedAddr +/// ::= GlobalVar '=' OptionalLinkage OptionalVisibility OptionalDLLStorageClass +/// OptionalThreadLocal OptionalUnNammedAddr OptionalAddrSpace /// OptionalExternallyInitialized GlobalType Type Const -/// ::= OptionalLinkage OptionalVisibility OptionalThreadLocal -/// OptionalAddrSpace OptionalUnNammedAddr +/// ::= OptionalLinkage OptionalVisibility OptionalDLLStorageClass +/// OptionalThreadLocal OptionalUnNammedAddr OptionalAddrSpace /// OptionalExternallyInitialized GlobalType Type Const /// -/// Everything through visibility has been parsed already. +/// Everything up to and including OptionalUnNammedAddr has been parsed +/// already. /// bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, unsigned Linkage, bool HasLinkage, - unsigned Visibility) { + unsigned Visibility, unsigned DLLStorageClass, + GlobalVariable::ThreadLocalMode TLM, + bool UnnamedAddr) { + if (!isValidVisibilityForLinkage(Visibility, Linkage)) + return Error(NameLoc, + "symbol with local linkage must have default visibility"); + unsigned AddrSpace; - bool IsConstant, UnnamedAddr, IsExternallyInitialized; - GlobalVariable::ThreadLocalMode TLM; - LocTy UnnamedAddrLoc; + bool IsConstant, IsExternallyInitialized; LocTy IsExternallyInitializedLoc; LocTy TyLoc; - Type *Ty = 0; - if (ParseOptionalThreadLocal(TLM) || - ParseOptionalAddrSpace(AddrSpace) || - ParseOptionalToken(lltok::kw_unnamed_addr, UnnamedAddr, - &UnnamedAddrLoc) || + Type *Ty = nullptr; + if (ParseOptionalAddrSpace(AddrSpace) || ParseOptionalToken(lltok::kw_externally_initialized, IsExternallyInitialized, &IsExternallyInitializedLoc) || @@ -724,9 +825,8 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, // If the linkage is specified and is external, then no initializer is // present. - Constant *Init = 0; - if (!HasLinkage || (Linkage != GlobalValue::DLLImportLinkage && - Linkage != GlobalValue::ExternalWeakLinkage && + Constant *Init = nullptr; + if (!HasLinkage || (Linkage != GlobalValue::ExternalWeakLinkage && Linkage != GlobalValue::ExternalLinkage)) { if (ParseGlobalValue(Ty, Init)) return true; @@ -735,7 +835,7 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, if (Ty->isFunctionTy() || Ty->isLabelTy()) return Error(TyLoc, "invalid type for global variable"); - GlobalVariable *GV = 0; + GlobalVariable *GV = nullptr; // See if the global was forward referenced, if so, use the global. if (!Name.empty()) { @@ -753,9 +853,9 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, } } - if (GV == 0) { - GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, 0, - Name, 0, GlobalVariable::NotThreadLocal, + if (!GV) { + GV = new GlobalVariable(*M, Ty, false, GlobalValue::ExternalLinkage, nullptr, + Name, nullptr, GlobalVariable::NotThreadLocal, AddrSpace); } else { if (GV->getType()->getElementType() != Ty) @@ -775,6 +875,7 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, GV->setConstant(IsConstant); GV->setLinkage((GlobalValue::LinkageTypes)Linkage); GV->setVisibility((GlobalValue::VisibilityTypes)Visibility); + GV->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); GV->setExternallyInitialized(IsExternallyInitialized); GV->setThreadLocalMode(TLM); GV->setUnnamedAddr(UnnamedAddr); @@ -793,7 +894,13 @@ bool LLParser::ParseGlobal(const std::string &Name, LocTy NameLoc, if (ParseOptionalAlignment(Alignment)) return true; GV->setAlignment(Alignment); } else { - TokError("unknown global variable property!"); + Comdat *C; + if (parseOptionalComdat(C)) + return true; + if (C) + GV->setComdat(C); + else + return TokError("unknown global variable property!"); } } @@ -912,6 +1019,7 @@ bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B, case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break; case lltok::kw_cold: B.addAttribute(Attribute::Cold); break; case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break; + case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break; case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break; case lltok::kw_naked: B.addAttribute(Attribute::Naked); break; case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break; @@ -944,9 +1052,12 @@ bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B, "invalid use of attribute on a function"); break; case lltok::kw_byval: + case lltok::kw_dereferenceable: + case lltok::kw_inalloca: case lltok::kw_nest: case lltok::kw_noalias: case lltok::kw_nocapture: + case lltok::kw_nonnull: case lltok::kw_returned: case lltok::kw_sret: HaveError |= @@ -969,9 +1080,9 @@ bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B, GlobalValue *LLParser::GetGlobalVal(const std::string &Name, Type *Ty, LocTy Loc) { PointerType *PTy = dyn_cast<PointerType>(Ty); - if (PTy == 0) { + if (!PTy) { Error(Loc, "global variable reference must have pointer type"); - return 0; + return nullptr; } // Look this name up in the normal function symbol table. @@ -980,7 +1091,7 @@ GlobalValue *LLParser::GetGlobalVal(const std::string &Name, Type *Ty, // If this is a forward reference for the value, see if we already created a // forward ref record. - if (Val == 0) { + if (!Val) { std::map<std::string, std::pair<GlobalValue*, LocTy> >::iterator I = ForwardRefVals.find(Name); if (I != ForwardRefVals.end()) @@ -992,7 +1103,7 @@ GlobalValue *LLParser::GetGlobalVal(const std::string &Name, Type *Ty, if (Val->getType() == Ty) return Val; Error(Loc, "'@" + Name + "' defined with type '" + getTypeString(Val->getType()) + "'"); - return 0; + return nullptr; } // Otherwise, create a new forward reference for this value and remember it. @@ -1001,8 +1112,8 @@ GlobalValue *LLParser::GetGlobalVal(const std::string &Name, Type *Ty, FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, Name, M); else FwdVal = new GlobalVariable(*M, PTy->getElementType(), false, - GlobalValue::ExternalWeakLinkage, 0, Name, - 0, GlobalVariable::NotThreadLocal, + GlobalValue::ExternalWeakLinkage, nullptr, Name, + nullptr, GlobalVariable::NotThreadLocal, PTy->getAddressSpace()); ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); @@ -1011,16 +1122,16 @@ GlobalValue *LLParser::GetGlobalVal(const std::string &Name, Type *Ty, GlobalValue *LLParser::GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc) { PointerType *PTy = dyn_cast<PointerType>(Ty); - if (PTy == 0) { + if (!PTy) { Error(Loc, "global variable reference must have pointer type"); - return 0; + return nullptr; } - GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0; + GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr; // If this is a forward reference for the value, see if we already created a // forward ref record. - if (Val == 0) { + if (!Val) { std::map<unsigned, std::pair<GlobalValue*, LocTy> >::iterator I = ForwardRefValIDs.find(ID); if (I != ForwardRefValIDs.end()) @@ -1032,7 +1143,7 @@ GlobalValue *LLParser::GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc) { if (Val->getType() == Ty) return Val; Error(Loc, "'@" + Twine(ID) + "' defined with type '" + getTypeString(Val->getType()) + "'"); - return 0; + return nullptr; } // Otherwise, create a new forward reference for this value and remember it. @@ -1041,7 +1152,7 @@ GlobalValue *LLParser::GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc) { FwdVal = Function::Create(FT, GlobalValue::ExternalWeakLinkage, "", M); else FwdVal = new GlobalVariable(*M, PTy->getElementType(), false, - GlobalValue::ExternalWeakLinkage, 0, ""); + GlobalValue::ExternalWeakLinkage, nullptr, ""); ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); return FwdVal; @@ -1049,6 +1160,24 @@ GlobalValue *LLParser::GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc) { //===----------------------------------------------------------------------===// +// Comdat Reference/Resolution Routines. +//===----------------------------------------------------------------------===// + +Comdat *LLParser::getComdat(const std::string &Name, LocTy Loc) { + // Look this name up in the comdat symbol table. + Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable(); + Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name); + if (I != ComdatSymTab.end()) + return &I->second; + + // Otherwise, create a new forward reference for this value and remember it. + Comdat *C = M->getOrInsertComdat(Name); + ForwardRefComdats[Name] = Loc; + return C; +} + + +//===----------------------------------------------------------------------===// // Helper Routines. //===----------------------------------------------------------------------===// @@ -1084,6 +1213,16 @@ bool LLParser::ParseUInt32(unsigned &Val) { return false; } +/// ParseUInt64 +/// ::= uint64 +bool LLParser::ParseUInt64(uint64_t &Val) { + if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) + return TokError("expected integer"); + Val = Lex.getAPSIntVal().getLimitedValue(); + Lex.Lex(); + return false; +} + /// ParseTLSModel /// := 'localdynamic' /// := 'initialexec' @@ -1156,10 +1295,19 @@ bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) { continue; } case lltok::kw_byval: B.addAttribute(Attribute::ByVal); break; + case lltok::kw_dereferenceable: { + uint64_t Bytes; + if (ParseOptionalDereferenceableBytes(Bytes)) + return true; + B.addDereferenceableAttr(Bytes); + continue; + } + case lltok::kw_inalloca: B.addAttribute(Attribute::InAlloca); break; case lltok::kw_inreg: B.addAttribute(Attribute::InReg); break; case lltok::kw_nest: B.addAttribute(Attribute::Nest); break; case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break; case lltok::kw_nocapture: B.addAttribute(Attribute::NoCapture); break; + case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break; case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break; case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break; case lltok::kw_returned: B.addAttribute(Attribute::Returned); break; @@ -1171,6 +1319,7 @@ bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) { case lltok::kw_alwaysinline: case lltok::kw_builtin: case lltok::kw_inlinehint: + case lltok::kw_jumptable: case lltok::kw_minsize: case lltok::kw_naked: case lltok::kw_nobuiltin: @@ -1210,14 +1359,23 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { switch (Token) { default: // End of attributes. return HaveError; + case lltok::kw_dereferenceable: { + uint64_t Bytes; + if (ParseOptionalDereferenceableBytes(Bytes)) + return true; + B.addDereferenceableAttr(Bytes); + continue; + } case lltok::kw_inreg: B.addAttribute(Attribute::InReg); break; case lltok::kw_noalias: B.addAttribute(Attribute::NoAlias); break; + case lltok::kw_nonnull: B.addAttribute(Attribute::NonNull); break; case lltok::kw_signext: B.addAttribute(Attribute::SExt); break; case lltok::kw_zeroext: B.addAttribute(Attribute::ZExt); break; // Error handling. case lltok::kw_align: case lltok::kw_byval: + case lltok::kw_inalloca: case lltok::kw_nest: case lltok::kw_nocapture: case lltok::kw_returned: @@ -1230,6 +1388,7 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { case lltok::kw_builtin: case lltok::kw_cold: case lltok::kw_inlinehint: + case lltok::kw_jumptable: case lltok::kw_minsize: case lltok::kw_naked: case lltok::kw_nobuiltin: @@ -1265,8 +1424,6 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { /// ParseOptionalLinkage /// ::= /*empty*/ /// ::= 'private' -/// ::= 'linker_private' -/// ::= 'linker_private_weak' /// ::= 'internal' /// ::= 'weak' /// ::= 'weak_odr' @@ -1274,20 +1431,18 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { /// ::= 'linkonce_odr' /// ::= 'available_externally' /// ::= 'appending' -/// ::= 'dllexport' /// ::= 'common' -/// ::= 'dllimport' /// ::= 'extern_weak' /// ::= 'external' +/// +/// Deprecated Values: +/// ::= 'linker_private' +/// ::= 'linker_private_weak' bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) { HasLinkage = false; switch (Lex.getKind()) { default: Res=GlobalValue::ExternalLinkage; return false; case lltok::kw_private: Res = GlobalValue::PrivateLinkage; break; - case lltok::kw_linker_private: Res = GlobalValue::LinkerPrivateLinkage; break; - case lltok::kw_linker_private_weak: - Res = GlobalValue::LinkerPrivateWeakLinkage; - break; case lltok::kw_internal: Res = GlobalValue::InternalLinkage; break; case lltok::kw_weak: Res = GlobalValue::WeakAnyLinkage; break; case lltok::kw_weak_odr: Res = GlobalValue::WeakODRLinkage; break; @@ -1297,11 +1452,18 @@ bool LLParser::ParseOptionalLinkage(unsigned &Res, bool &HasLinkage) { Res = GlobalValue::AvailableExternallyLinkage; break; case lltok::kw_appending: Res = GlobalValue::AppendingLinkage; break; - case lltok::kw_dllexport: Res = GlobalValue::DLLExportLinkage; break; case lltok::kw_common: Res = GlobalValue::CommonLinkage; break; - case lltok::kw_dllimport: Res = GlobalValue::DLLImportLinkage; break; case lltok::kw_extern_weak: Res = GlobalValue::ExternalWeakLinkage; break; case lltok::kw_external: Res = GlobalValue::ExternalLinkage; break; + + case lltok::kw_linker_private: + case lltok::kw_linker_private_weak: + Lex.Warning("'" + Lex.getStrVal() + "' is deprecated, treating as" + " PrivateLinkage"); + Lex.Lex(); + // treat linker_private and linker_private_weak as PrivateLinkage + Res = GlobalValue::PrivateLinkage; + return false; } Lex.Lex(); HasLinkage = true; @@ -1325,6 +1487,21 @@ bool LLParser::ParseOptionalVisibility(unsigned &Res) { return false; } +/// ParseOptionalDLLStorageClass +/// ::= /*empty*/ +/// ::= 'dllimport' +/// ::= 'dllexport' +/// +bool LLParser::ParseOptionalDLLStorageClass(unsigned &Res) { + switch (Lex.getKind()) { + default: Res = GlobalValue::DefaultStorageClass; return false; + case lltok::kw_dllimport: Res = GlobalValue::DLLImportStorageClass; break; + case lltok::kw_dllexport: Res = GlobalValue::DLLExportStorageClass; break; + } + Lex.Lex(); + return false; +} + /// ParseOptionalCallingConv /// ::= /*empty*/ /// ::= 'ccc' @@ -1346,6 +1523,8 @@ bool LLParser::ParseOptionalVisibility(unsigned &Res) { /// ::= 'x86_64_win64cc' /// ::= 'webkit_jscc' /// ::= 'anyregcc' +/// ::= 'preserve_mostcc' +/// ::= 'preserve_allcc' /// ::= 'cc' UINT /// bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) { @@ -1370,6 +1549,8 @@ bool LLParser::ParseOptionalCallingConv(CallingConv::ID &CC) { case lltok::kw_x86_64_win64cc: CC = CallingConv::X86_64_Win64; break; case lltok::kw_webkit_jscc: CC = CallingConv::WebKit_JS; break; case lltok::kw_anyregcc: CC = CallingConv::AnyReg; break; + case lltok::kw_preserve_mostcc:CC = CallingConv::PreserveMost; break; + case lltok::kw_preserve_allcc: CC = CallingConv::PreserveAll; break; case lltok::kw_cc: { unsigned ArbitraryCC; Lex.Lex(); @@ -1450,6 +1631,26 @@ bool LLParser::ParseOptionalAlignment(unsigned &Alignment) { return false; } +/// ParseOptionalDereferenceableBytes +/// ::= /* empty */ +/// ::= 'dereferenceable' '(' 4 ')' +bool LLParser::ParseOptionalDereferenceableBytes(uint64_t &Bytes) { + Bytes = 0; + if (!EatIfPresent(lltok::kw_dereferenceable)) + return false; + LocTy ParenLoc = Lex.getLoc(); + if (!EatIfPresent(lltok::lparen)) + return Error(ParenLoc, "expected '('"); + LocTy DerefLoc = Lex.getLoc(); + if (ParseUInt64(Bytes)) return true; + ParenLoc = Lex.getLoc(); + if (!EatIfPresent(lltok::rparen)) + return Error(ParenLoc, "expected ')'"); + if (!Bytes) + return Error(DerefLoc, "dereferenceable bytes must be non-zero"); + return false; +} + /// ParseOptionalCommaAlign /// ::= /// ::= ',' align 4 @@ -1488,6 +1689,15 @@ bool LLParser::ParseScopeAndOrdering(bool isAtomic, SynchronizationScope &Scope, Scope = CrossThread; if (EatIfPresent(lltok::kw_singlethread)) Scope = SingleThread; + + return ParseOrdering(Ordering); +} + +/// ParseOrdering +/// ::= AtomicOrdering +/// +/// This sets Ordering to the parsed value. +bool LLParser::ParseOrdering(AtomicOrdering &Ordering) { switch (Lex.getKind()) { default: return TokError("Expected ordering on atomic instruction"); case lltok::kw_unordered: Ordering = Unordered; break; @@ -1592,7 +1802,7 @@ bool LLParser::ParseType(Type *&Result, bool AllowVoid) { // If the type hasn't been defined yet, create a forward definition and // remember where that forward def'n was seen (in case it never is defined). - if (Entry.first == 0) { + if (!Entry.first) { Entry.first = StructType::create(Context, Lex.getStrVal()); Entry.second = Lex.getLoc(); } @@ -1609,7 +1819,7 @@ bool LLParser::ParseType(Type *&Result, bool AllowVoid) { // If the type hasn't been defined yet, create a forward definition and // remember where that forward def'n was seen (in case it never is defined). - if (Entry.first == 0) { + if (!Entry.first) { Entry.first = StructType::create(Context); Entry.second = Lex.getLoc(); } @@ -1685,7 +1895,7 @@ bool LLParser::ParseParameterList(SmallVectorImpl<ParamInfo> &ArgList, // Parse the argument. LocTy ArgLoc; - Type *ArgTy = 0; + Type *ArgTy = nullptr; AttrBuilder ArgAttrs; Value *V; if (ParseType(ArgTy, ArgLoc)) @@ -1727,7 +1937,7 @@ bool LLParser::ParseArgumentList(SmallVectorImpl<ArgInfo> &ArgList, Lex.Lex(); } else { LocTy TypeLoc = Lex.getLoc(); - Type *ArgTy = 0; + Type *ArgTy = nullptr; AttrBuilder Attrs; std::string Name; @@ -1839,7 +2049,7 @@ bool LLParser::ParseStructDefinition(SMLoc TypeLoc, StringRef Name, Entry.second = SMLoc(); // If this type number has never been uttered, create it. - if (Entry.first == 0) + if (!Entry.first) Entry.first = StructType::create(Context, Name); ResultTy = Entry.first; return false; @@ -1855,7 +2065,7 @@ bool LLParser::ParseStructDefinition(SMLoc TypeLoc, StringRef Name, if (Entry.first) return Error(TypeLoc, "forward references to non-struct type"); - ResultTy = 0; + ResultTy = nullptr; if (isPacked) return ParseArrayVectorType(ResultTy, true); return ParseType(ResultTy); @@ -1865,7 +2075,7 @@ bool LLParser::ParseStructDefinition(SMLoc TypeLoc, StringRef Name, Entry.second = SMLoc(); // If this type number has never been uttered, create it. - if (Entry.first == 0) + if (!Entry.first) Entry.first = StructType::create(Context, Name); StructType *STy = cast<StructType>(Entry.first); @@ -1896,7 +2106,7 @@ bool LLParser::ParseStructBody(SmallVectorImpl<Type*> &Body) { return false; LocTy EltTyLoc = Lex.getLoc(); - Type *Ty = 0; + Type *Ty = nullptr; if (ParseType(Ty)) return true; Body.push_back(Ty); @@ -1934,7 +2144,7 @@ bool LLParser::ParseArrayVectorType(Type *&Result, bool isVector) { return true; LocTy TypeLoc = Lex.getLoc(); - Type *EltTy = 0; + Type *EltTy = nullptr; if (ParseType(EltTy)) return true; if (ParseToken(isVector ? lltok::greater : lltok::rsquare, @@ -1980,7 +2190,7 @@ LLParser::PerFunctionState::~PerFunctionState() { I->second.first->replaceAllUsesWith( UndefValue::get(I->second.first->getType())); delete I->second.first; - I->second.first = 0; + I->second.first = nullptr; } for (std::map<unsigned, std::pair<Value*, LocTy> >::iterator @@ -1989,7 +2199,7 @@ LLParser::PerFunctionState::~PerFunctionState() { I->second.first->replaceAllUsesWith( UndefValue::get(I->second.first->getType())); delete I->second.first; - I->second.first = 0; + I->second.first = nullptr; } } @@ -2038,7 +2248,7 @@ Value *LLParser::PerFunctionState::GetVal(const std::string &Name, // If this is a forward reference for the value, see if we already created a // forward ref record. - if (Val == 0) { + if (!Val) { std::map<std::string, std::pair<Value*, LocTy> >::iterator I = ForwardRefVals.find(Name); if (I != ForwardRefVals.end()) @@ -2053,13 +2263,13 @@ Value *LLParser::PerFunctionState::GetVal(const std::string &Name, else P.Error(Loc, "'%" + Name + "' defined with type '" + getTypeString(Val->getType()) + "'"); - return 0; + return nullptr; } // Don't make placeholders with invalid type. if (!Ty->isFirstClassType() && !Ty->isLabelTy()) { P.Error(Loc, "invalid use of a non-first-class type"); - return 0; + return nullptr; } // Otherwise, create a new forward reference for this value and remember it. @@ -2076,11 +2286,11 @@ Value *LLParser::PerFunctionState::GetVal(const std::string &Name, Value *LLParser::PerFunctionState::GetVal(unsigned ID, Type *Ty, LocTy Loc) { // Look this name up in the normal function symbol table. - Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : 0; + Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr; // If this is a forward reference for the value, see if we already created a // forward ref record. - if (Val == 0) { + if (!Val) { std::map<unsigned, std::pair<Value*, LocTy> >::iterator I = ForwardRefValIDs.find(ID); if (I != ForwardRefValIDs.end()) @@ -2095,12 +2305,12 @@ Value *LLParser::PerFunctionState::GetVal(unsigned ID, Type *Ty, else P.Error(Loc, "'%" + Twine(ID) + "' defined with type '" + getTypeString(Val->getType()) + "'"); - return 0; + return nullptr; } if (!Ty->isFirstClassType() && !Ty->isLabelTy()) { P.Error(Loc, "invalid use of a non-first-class type"); - return 0; + return nullptr; } // Otherwise, create a new forward reference for this value and remember it. @@ -2196,7 +2406,7 @@ BasicBlock *LLParser::PerFunctionState::DefineBB(const std::string &Name, BB = GetBB(NumberedVals.size(), Loc); else BB = GetBB(Name, Loc); - if (BB == 0) return 0; // Already diagnosed error. + if (!BB) return nullptr; // Already diagnosed error. // Move the block to the end of the function. Forward ref'd blocks are // inserted wherever they happen to be referenced. @@ -2404,7 +2614,7 @@ bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) { // Make a global variable as a placeholder for this reference. GlobalVariable *FwdRef = new GlobalVariable(*M, Type::getInt8Ty(Context), false, GlobalValue::InternalLinkage, - 0, ""); + nullptr, ""); ForwardRefBlockAddresses[Fn].push_back(std::make_pair(Label, FwdRef)); ID.ConstantVal = FwdRef; ID.Kind = ValID::t_Constant; @@ -2425,7 +2635,7 @@ bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) { case lltok::kw_inttoptr: case lltok::kw_ptrtoint: { unsigned Opc = Lex.getUIntVal(); - Type *DestTy = 0; + Type *DestTy = nullptr; Constant *SrcVal; Lex.Lex(); if (ParseToken(lltok::lparen, "expected '(' after constantexpr cast") || @@ -2689,22 +2899,35 @@ bool LLParser::ParseValID(ValID &ID, PerFunctionState *PFS) { /// ParseGlobalValue - Parse a global value with the specified type. bool LLParser::ParseGlobalValue(Type *Ty, Constant *&C) { - C = 0; + C = nullptr; ValID ID; - Value *V = NULL; + Value *V = nullptr; bool Parsed = ParseValID(ID) || - ConvertValIDToValue(Ty, ID, V, NULL); + ConvertValIDToValue(Ty, ID, V, nullptr); if (V && !(C = dyn_cast<Constant>(V))) return Error(ID.Loc, "global values must be constants"); return Parsed; } bool LLParser::ParseGlobalTypeAndValue(Constant *&V) { - Type *Ty = 0; + Type *Ty = nullptr; return ParseType(Ty) || ParseGlobalValue(Ty, V); } +bool LLParser::parseOptionalComdat(Comdat *&C) { + C = nullptr; + if (!EatIfPresent(lltok::kw_comdat)) + return false; + if (Lex.getKind() != lltok::ComdatVar) + return TokError("expected comdat variable"); + LocTy Loc = Lex.getLoc(); + StringRef Name = Lex.getStrVal(); + C = getComdat(Name, Loc); + Lex.Lex(); + return false; +} + /// ParseGlobalValueVector /// ::= /*empty*/ /// ::= TypeAndValue (',' TypeAndValue)* @@ -2784,15 +3007,15 @@ bool LLParser::ConvertValIDToValue(Type *Ty, ValID &ID, Value *&V, case ValID::t_LocalID: if (!PFS) return Error(ID.Loc, "invalid use of function-local name"); V = PFS->GetVal(ID.UIntVal, Ty, ID.Loc); - return (V == 0); + return V == nullptr; case ValID::t_LocalName: if (!PFS) return Error(ID.Loc, "invalid use of function-local name"); V = PFS->GetVal(ID.StrVal, Ty, ID.Loc); - return (V == 0); + return V == nullptr; case ValID::t_InlineAsm: { PointerType *PTy = dyn_cast<PointerType>(Ty); FunctionType *FTy = - PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0; + PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : nullptr; if (!FTy || !InlineAsm::Verify(FTy, ID.StrVal2)) return Error(ID.Loc, "invalid type for inline asm constraint string"); V = InlineAsm::get(FTy, ID.StrVal, ID.StrVal2, ID.UIntVal&1, @@ -2811,10 +3034,10 @@ bool LLParser::ConvertValIDToValue(Type *Ty, ValID &ID, Value *&V, return false; case ValID::t_GlobalName: V = GetGlobalVal(ID.StrVal, Ty, ID.Loc); - return V == 0; + return V == nullptr; case ValID::t_GlobalID: V = GetGlobalVal(ID.UIntVal, Ty, ID.Loc); - return V == 0; + return V == nullptr; case ValID::t_APSInt: if (!Ty->isIntegerTy()) return Error(ID.Loc, "integer constant must have integer type"); @@ -2897,14 +3120,14 @@ bool LLParser::ConvertValIDToValue(Type *Ty, ValID &ID, Value *&V, } bool LLParser::ParseValue(Type *Ty, Value *&V, PerFunctionState *PFS) { - V = 0; + V = nullptr; ValID ID; return ParseValID(ID, PFS) || ConvertValIDToValue(Ty, ID, V, PFS); } bool LLParser::ParseTypeAndValue(Value *&V, PerFunctionState *PFS) { - Type *Ty = 0; + Type *Ty = nullptr; return ParseType(Ty) || ParseValue(Ty, V, PFS); } @@ -2931,12 +3154,14 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { unsigned Linkage; unsigned Visibility; + unsigned DLLStorageClass; AttrBuilder RetAttrs; CallingConv::ID CC; - Type *RetType = 0; + Type *RetType = nullptr; LocTy RetTypeLoc = Lex.getLoc(); if (ParseOptionalLinkage(Linkage) || ParseOptionalVisibility(Visibility) || + ParseOptionalDLLStorageClass(DLLStorageClass) || ParseOptionalCallingConv(CC) || ParseOptionalReturnAttrs(RetAttrs) || ParseType(RetType, RetTypeLoc, true /*void allowed*/)) @@ -2946,21 +3171,17 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { switch ((GlobalValue::LinkageTypes)Linkage) { case GlobalValue::ExternalLinkage: break; // always ok. - case GlobalValue::DLLImportLinkage: case GlobalValue::ExternalWeakLinkage: if (isDefine) return Error(LinkageLoc, "invalid linkage for function definition"); break; case GlobalValue::PrivateLinkage: - case GlobalValue::LinkerPrivateLinkage: - case GlobalValue::LinkerPrivateWeakLinkage: case GlobalValue::InternalLinkage: case GlobalValue::AvailableExternallyLinkage: case GlobalValue::LinkOnceAnyLinkage: case GlobalValue::LinkOnceODRLinkage: case GlobalValue::WeakAnyLinkage: case GlobalValue::WeakODRLinkage: - case GlobalValue::DLLExportLinkage: if (!isDefine) return Error(LinkageLoc, "invalid linkage for function declaration"); break; @@ -2969,6 +3190,10 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { return Error(LinkageLoc, "invalid function linkage type"); } + if (!isValidVisibilityForLinkage(Visibility, Linkage)) + return Error(LinkageLoc, + "symbol with local linkage must have default visibility"); + if (!FunctionType::isValidReturnType(RetType)) return Error(RetTypeLoc, "invalid function return type"); @@ -3002,7 +3227,8 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { std::string GC; bool UnnamedAddr; LocTy UnnamedAddrLoc; - Constant *Prefix = 0; + Constant *Prefix = nullptr; + Comdat *C; if (ParseArgumentList(ArgList, isVarArg) || ParseOptionalToken(lltok::kw_unnamed_addr, UnnamedAddr, @@ -3011,6 +3237,7 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { BuiltinLoc) || (EatIfPresent(lltok::kw_section) && ParseStringConstant(Section)) || + parseOptionalComdat(C) || ParseOptionalAlignment(Alignment) || (EatIfPresent(lltok::kw_gc) && ParseStringConstant(GC)) || @@ -3059,7 +3286,7 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { FunctionType::get(RetType, ParamTypeList, isVarArg); PointerType *PFT = PointerType::getUnqual(FT); - Fn = 0; + Fn = nullptr; if (!FunctionName.empty()) { // If this was a definition of a forward reference, remove the definition // from the forward reference table and fill in the forward ref. @@ -3097,7 +3324,7 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { } } - if (Fn == 0) + if (!Fn) Fn = Function::Create(FT, GlobalValue::ExternalLinkage, FunctionName, M); else // Move the forward-reference to the correct spot in the module. M->getFunctionList().splice(M->end(), M->getFunctionList(), Fn); @@ -3107,11 +3334,13 @@ bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) { Fn->setLinkage((GlobalValue::LinkageTypes)Linkage); Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility); + Fn->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); Fn->setCallingConv(CC); Fn->setAttributes(PAL); Fn->setUnnamedAddr(UnnamedAddr); Fn->setAlignment(Alignment); Fn->setSection(Section); + Fn->setComdat(C); if (!GC.empty()) Fn->setGC(GC.c_str()); Fn->setPrefixData(Prefix); ForwardRefAttrGroups[Fn] = FwdRefAttrGrps; @@ -3173,7 +3402,7 @@ bool LLParser::ParseBasicBlock(PerFunctionState &PFS) { } BasicBlock *BB = PFS.DefineBB(Name, NameLoc); - if (BB == 0) return true; + if (!BB) return true; std::string NameStr; @@ -3321,8 +3550,10 @@ int LLParser::ParseInstruction(Instruction *&Inst, BasicBlock *BB, case lltok::kw_shufflevector: return ParseShuffleVector(Inst, PFS); case lltok::kw_phi: return ParsePHI(Inst, PFS); case lltok::kw_landingpad: return ParseLandingPad(Inst, PFS); - case lltok::kw_call: return ParseCall(Inst, PFS, false); - case lltok::kw_tail: return ParseCall(Inst, PFS, true); + // Call. + case lltok::kw_call: return ParseCall(Inst, PFS, CallInst::TCK_None); + case lltok::kw_tail: return ParseCall(Inst, PFS, CallInst::TCK_Tail); + case lltok::kw_musttail: return ParseCall(Inst, PFS, CallInst::TCK_MustTail); // Memory. case lltok::kw_alloca: return ParseAlloc(Inst, PFS); case lltok::kw_load: return ParseLoad(Inst, PFS); @@ -3387,7 +3618,7 @@ bool LLParser::ParseCmpPredicate(unsigned &P, unsigned Opc) { bool LLParser::ParseRet(Instruction *&Inst, BasicBlock *BB, PerFunctionState &PFS) { SMLoc TypeLoc = Lex.getLoc(); - Type *Ty = 0; + Type *Ty = nullptr; if (ParseType(Ty, true /*void allowed*/)) return true; Type *ResType = PFS.getFunction().getReturnType(); @@ -3537,7 +3768,7 @@ bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) { std::vector<unsigned> FwdRefAttrGrps; LocTy NoBuiltinLoc; CallingConv::ID CC; - Type *RetType = 0; + Type *RetType = nullptr; LocTy RetTypeLoc; ValID CalleeID; SmallVector<ParamInfo, 16> ArgList; @@ -3559,8 +3790,8 @@ bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) { // If RetType is a non-function pointer type, then this is the short syntax // for the call, which means that RetType is just the return type. Infer the // rest of the function argument types from the arguments that are present. - PointerType *PFTy = 0; - FunctionType *Ty = 0; + PointerType *PFTy = nullptr; + FunctionType *Ty = nullptr; if (!(PFTy = dyn_cast<PointerType>(RetType)) || !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) { // Pull out the types of all of the arguments... @@ -3593,7 +3824,7 @@ bool LLParser::ParseInvoke(Instruction *&Inst, PerFunctionState &PFS) { FunctionType::param_iterator I = Ty->param_begin(); FunctionType::param_iterator E = Ty->param_end(); for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { - Type *ExpectedTy = 0; + Type *ExpectedTy = nullptr; if (I != E) { ExpectedTy = *I++; } else if (!Ty->isVarArg()) { @@ -3734,7 +3965,7 @@ bool LLParser::ParseCast(Instruction *&Inst, PerFunctionState &PFS, unsigned Opc) { LocTy Loc; Value *Op; - Type *DestTy = 0; + Type *DestTy = nullptr; if (ParseTypeAndValue(Op, Loc, PFS) || ParseToken(lltok::kw_to, "expected 'to' after cast value") || ParseType(DestTy)) @@ -3773,7 +4004,7 @@ bool LLParser::ParseSelect(Instruction *&Inst, PerFunctionState &PFS) { /// ::= 'va_arg' TypeAndValue ',' Type bool LLParser::ParseVA_Arg(Instruction *&Inst, PerFunctionState &PFS) { Value *Op; - Type *EltTy = 0; + Type *EltTy = nullptr; LocTy TypeLoc; if (ParseTypeAndValue(Op, PFS) || ParseToken(lltok::comma, "expected ',' after vaarg operand") || @@ -3845,7 +4076,7 @@ bool LLParser::ParseShuffleVector(Instruction *&Inst, PerFunctionState &PFS) { /// ParsePHI /// ::= 'phi' Type '[' Value ',' Value ']' (',' '[' Value ',' Value ']')* int LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) { - Type *Ty = 0; LocTy TypeLoc; + Type *Ty = nullptr; LocTy TypeLoc; Value *Op0, *Op1; if (ParseType(Ty, TypeLoc) || @@ -3894,7 +4125,7 @@ int LLParser::ParsePHI(Instruction *&Inst, PerFunctionState &PFS) { /// ::= 'filter' /// ::= 'filter' TypeAndValue ( ',' TypeAndValue )* bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) { - Type *Ty = 0; LocTy TyLoc; + Type *Ty = nullptr; LocTy TyLoc; Value *PersFn; LocTy PersFnLoc; if (ParseType(Ty, TyLoc) || @@ -3914,7 +4145,8 @@ bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) { else return TokError("expected 'catch' or 'filter' clause type"); - Value *V; LocTy VLoc; + Value *V; + LocTy VLoc; if (ParseTypeAndValue(V, VLoc, PFS)) { delete LP; return true; @@ -3930,7 +4162,7 @@ bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) { Error(VLoc, "'filter' clause has an invalid type"); } - LP->addClause(V); + LP->addClause(cast<Constant>(V)); } Inst = LP; @@ -3938,21 +4170,26 @@ bool LLParser::ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS) { } /// ParseCall -/// ::= 'tail'? 'call' OptionalCallingConv OptionalAttrs Type Value +/// ::= 'call' OptionalCallingConv OptionalAttrs Type Value +/// ParameterList OptionalAttrs +/// ::= 'tail' 'call' OptionalCallingConv OptionalAttrs Type Value +/// ParameterList OptionalAttrs +/// ::= 'musttail' 'call' OptionalCallingConv OptionalAttrs Type Value /// ParameterList OptionalAttrs bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS, - bool isTail) { + CallInst::TailCallKind TCK) { AttrBuilder RetAttrs, FnAttrs; std::vector<unsigned> FwdRefAttrGrps; LocTy BuiltinLoc; CallingConv::ID CC; - Type *RetType = 0; + Type *RetType = nullptr; LocTy RetTypeLoc; ValID CalleeID; SmallVector<ParamInfo, 16> ArgList; LocTy CallLoc = Lex.getLoc(); - if ((isTail && ParseToken(lltok::kw_call, "expected 'tail call'")) || + if ((TCK != CallInst::TCK_None && + ParseToken(lltok::kw_call, "expected 'tail call'")) || ParseOptionalCallingConv(CC) || ParseOptionalReturnAttrs(RetAttrs) || ParseType(RetType, RetTypeLoc, true /*void allowed*/) || @@ -3965,8 +4202,8 @@ bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS, // If RetType is a non-function pointer type, then this is the short syntax // for the call, which means that RetType is just the return type. Infer the // rest of the function argument types from the arguments that are present. - PointerType *PFTy = 0; - FunctionType *Ty = 0; + PointerType *PFTy = nullptr; + FunctionType *Ty = nullptr; if (!(PFTy = dyn_cast<PointerType>(RetType)) || !(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) { // Pull out the types of all of the arguments... @@ -3999,7 +4236,7 @@ bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS, FunctionType::param_iterator I = Ty->param_begin(); FunctionType::param_iterator E = Ty->param_end(); for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { - Type *ExpectedTy = 0; + Type *ExpectedTy = nullptr; if (I != E) { ExpectedTy = *I++; } else if (!Ty->isVarArg()) { @@ -4028,7 +4265,7 @@ bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS, AttributeSet PAL = AttributeSet::get(Context, Attrs); CallInst *CI = CallInst::Create(Callee, Args); - CI->setTailCall(isTail); + CI->setTailCallKind(TCK); CI->setCallingConv(CC); CI->setAttributes(PAL); ForwardRefAttrGroups[CI] = FwdRefAttrGrps; @@ -4041,12 +4278,15 @@ bool LLParser::ParseCall(Instruction *&Inst, PerFunctionState &PFS, //===----------------------------------------------------------------------===// /// ParseAlloc -/// ::= 'alloca' Type (',' TypeAndValue)? (',' OptionalInfo)? +/// ::= 'alloca' 'inalloca'? Type (',' TypeAndValue)? (',' 'align' i32)? int LLParser::ParseAlloc(Instruction *&Inst, PerFunctionState &PFS) { - Value *Size = 0; + Value *Size = nullptr; LocTy SizeLoc; unsigned Alignment = 0; - Type *Ty = 0; + Type *Ty = nullptr; + + bool IsInAlloca = EatIfPresent(lltok::kw_inalloca); + if (ParseType(Ty)) return true; bool AteExtraComma = false; @@ -4065,7 +4305,9 @@ int LLParser::ParseAlloc(Instruction *&Inst, PerFunctionState &PFS) { if (Size && !Size->getType()->isIntegerTy()) return Error(SizeLoc, "element count must have integer type"); - Inst = new AllocaInst(Ty, Size, Alignment); + AllocaInst *AI = new AllocaInst(Ty, Size, Alignment); + AI->setUsedWithInAlloca(IsInAlloca); + Inst = AI; return AteExtraComma ? InstExtraComma : InstNormal; } @@ -4156,14 +4398,19 @@ int LLParser::ParseStore(Instruction *&Inst, PerFunctionState &PFS) { } /// ParseCmpXchg -/// ::= 'cmpxchg' 'volatile'? TypeAndValue ',' TypeAndValue ',' TypeAndValue -/// 'singlethread'? AtomicOrdering +/// ::= 'cmpxchg' 'weak'? 'volatile'? TypeAndValue ',' TypeAndValue ',' +/// TypeAndValue 'singlethread'? AtomicOrdering AtomicOrdering int LLParser::ParseCmpXchg(Instruction *&Inst, PerFunctionState &PFS) { Value *Ptr, *Cmp, *New; LocTy PtrLoc, CmpLoc, NewLoc; bool AteExtraComma = false; - AtomicOrdering Ordering = NotAtomic; + AtomicOrdering SuccessOrdering = NotAtomic; + AtomicOrdering FailureOrdering = NotAtomic; SynchronizationScope Scope = CrossThread; bool isVolatile = false; + bool isWeak = false; + + if (EatIfPresent(lltok::kw_weak)) + isWeak = true; if (EatIfPresent(lltok::kw_volatile)) isVolatile = true; @@ -4173,11 +4420,16 @@ int LLParser::ParseCmpXchg(Instruction *&Inst, PerFunctionState &PFS) { ParseTypeAndValue(Cmp, CmpLoc, PFS) || ParseToken(lltok::comma, "expected ',' after cmpxchg cmp operand") || ParseTypeAndValue(New, NewLoc, PFS) || - ParseScopeAndOrdering(true /*Always atomic*/, Scope, Ordering)) + ParseScopeAndOrdering(true /*Always atomic*/, Scope, SuccessOrdering) || + ParseOrdering(FailureOrdering)) return true; - if (Ordering == Unordered) + if (SuccessOrdering == Unordered || FailureOrdering == Unordered) return TokError("cmpxchg cannot be unordered"); + if (SuccessOrdering < FailureOrdering) + return TokError("cmpxchg must be at least as ordered on success as failure"); + if (FailureOrdering == Release || FailureOrdering == AcquireRelease) + return TokError("cmpxchg failure ordering cannot include release semantics"); if (!Ptr->getType()->isPointerTy()) return Error(PtrLoc, "cmpxchg operand must be a pointer"); if (cast<PointerType>(Ptr->getType())->getElementType() != Cmp->getType()) @@ -4191,9 +4443,10 @@ int LLParser::ParseCmpXchg(Instruction *&Inst, PerFunctionState &PFS) { return Error(NewLoc, "cmpxchg operand must be power-of-two byte-sized" " integer"); - AtomicCmpXchgInst *CXI = - new AtomicCmpXchgInst(Ptr, Cmp, New, Ordering, Scope); + AtomicCmpXchgInst *CXI = new AtomicCmpXchgInst( + Ptr, Cmp, New, SuccessOrdering, FailureOrdering, Scope); CXI->setVolatile(isVolatile); + CXI->setWeak(isWeak); Inst = CXI; return AteExtraComma ? InstExtraComma : InstNormal; } @@ -4274,8 +4527,8 @@ int LLParser::ParseFence(Instruction *&Inst, PerFunctionState &PFS) { /// ParseGetElementPtr /// ::= 'getelementptr' 'inbounds'? TypeAndValue (',' TypeAndValue)* int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) { - Value *Ptr = 0; - Value *Val = 0; + Value *Ptr = nullptr; + Value *Val = nullptr; LocTy Loc, EltLoc; bool InBounds = EatIfPresent(lltok::kw_inbounds); @@ -4377,11 +4630,11 @@ bool LLParser::ParseMDNodeVector(SmallVectorImpl<Value*> &Elts, do { // Null is a special case since it is typeless. if (EatIfPresent(lltok::kw_null)) { - Elts.push_back(0); + Elts.push_back(nullptr); continue; } - Value *V = 0; + Value *V = nullptr; if (ParseTypeAndValue(V, PFS)) return true; Elts.push_back(V); } while (EatIfPresent(lltok::comma)); |
