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view gen/llvmhelpers.h @ 1168:ab186e535e72
A different fix to #218 and DMD2682 that does not lead to constant folding regressions.
Fixes run/const_15, run/c/const_16_B.
The price is removing the lvalueness of struct literals. If it turns out too
much code depends on this behavior or we don't want to break with DMD, we
could keep struct literals as lvalues and instead convert struct literals used
as expression initializers into struct initializers.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 29 Mar 2009 11:43:45 +0200 |
parents | 7d28dcbff23e |
children | 8baf611f0009 |
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#ifndef LDC_GEN_LLVMHELPERS_H #define LDC_GEN_LLVMHELPERS_H #include "gen/llvm.h" #include "statement.h" // this is used for tracking try-finally, synchronized and volatile scopes struct EnclosingHandler { virtual void emitCode(IRState* p) = 0; }; struct EnclosingTryFinally : EnclosingHandler { TryFinallyStatement* tf; void emitCode(IRState* p); EnclosingTryFinally(TryFinallyStatement* _tf) : tf(_tf) {} }; struct EnclosingVolatile : EnclosingHandler { VolatileStatement* v; void emitCode(IRState* p); EnclosingVolatile(VolatileStatement* _tf) : v(_tf) {} }; struct EnclosingSynchro : EnclosingHandler { SynchronizedStatement* s; void emitCode(IRState* p); EnclosingSynchro(SynchronizedStatement* _tf) : s(_tf) {} }; // dynamic memory helpers LLValue* DtoNew(Type* newtype); void DtoDeleteMemory(LLValue* ptr); void DtoDeleteClass(LLValue* inst); void DtoDeleteInterface(LLValue* inst); void DtoDeleteArray(DValue* arr); // emit an alloca llvm::AllocaInst* DtoAlloca(const LLType* lltype, const std::string& name = ""); llvm::AllocaInst* DtoAlloca(const LLType* lltype, LLValue* arraysize, const std::string& name = ""); // assertion generator void DtoAssert(Module* M, Loc loc, DValue* msg); // return the LabelStatement from the current function with the given identifier or NULL if not found LabelStatement* DtoLabelStatement(Identifier* ident); /// emits goto to LabelStatement with the target identifier /// the sourceFinally is only used for error checking void DtoGoto(Loc loc, Identifier* target, TryFinallyStatement* sourceFinally); // Generates IR for enclosing handlers between the current state and // the scope created by the 'target' statement. void DtoEnclosingHandlers(Loc loc, Statement* target); /// Enters a critical section. void DtoEnterCritical(LLValue* g); /// leaves a critical section. void DtoLeaveCritical(LLValue* g); /// Enters a monitor lock. void DtoEnterMonitor(LLValue* v); /// Leaves a monitor lock. void DtoLeaveMonitor(LLValue* v); // nested variable and context helpers /// Gets the context value for a call to a nested function or newing a nested /// class with arbitrary nesting. LLValue* DtoNestedContext(Loc loc, Dsymbol* sym); /// Gets the DValue of a nested variable with arbitrary nesting. DValue* DtoNestedVariable(Loc loc, Type* astype, VarDeclaration* vd); // basic operations void DtoAssign(Loc& loc, DValue* lhs, DValue* rhs); /// Create a null DValue. DValue* DtoNullValue(Type* t); // casts DValue* DtoCastInt(Loc& loc, DValue* val, Type* to); DValue* DtoCastPtr(Loc& loc, DValue* val, Type* to); DValue* DtoCastFloat(Loc& loc, DValue* val, Type* to); DValue* DtoCastDelegate(Loc& loc, DValue* val, Type* to); DValue* DtoCast(Loc& loc, DValue* val, Type* to); // return the same val as passed in, modified to the target type, if possible, otherwise returns a new DValue DValue* DtoPaintType(Loc& loc, DValue* val, Type* to); // is template instance check, returns module where instantiated TemplateInstance* DtoIsTemplateInstance(Dsymbol* s); /// Generate code for the symbol. /// Dispatches as appropriate. void DtoResolveDsymbol(Dsymbol* dsym); /// Generates the constant initializer for a global variable. void DtoConstInitGlobal(VarDeclaration* vd); // declaration inside a declarationexp DValue* DtoDeclarationExp(Dsymbol* declaration); LLValue* DtoRawVarDeclaration(VarDeclaration* var); // initializer helpers LLConstant* DtoConstInitializer(Loc loc, Type* type, Initializer* init); LLConstant* DtoConstExpInit(Loc loc, Type* t, Expression* exp); DValue* DtoInitializer(LLValue* target, Initializer* init); // annotation generator void DtoAnnotation(const char* str); // getting typeinfo of type, base=true casts to object.TypeInfo LLConstant* DtoTypeInfoOf(Type* ty, bool base=true); // binary operations DValue* DtoBinAdd(DValue* lhs, DValue* rhs); DValue* DtoBinSub(DValue* lhs, DValue* rhs); // these binops need an explicit result type to handling // to give 'ifloat op float' and 'float op ifloat' the correct type DValue* DtoBinMul(Type* resulttype, DValue* lhs, DValue* rhs); DValue* DtoBinDiv(Type* resulttype, DValue* lhs, DValue* rhs); DValue* DtoBinRem(Type* resulttype, DValue* lhs, DValue* rhs); // target stuff void findDefaultTarget(); /// Fixup an overloaded intrinsic name string. void DtoOverloadedIntrinsicName(TemplateInstance* ti, TemplateDeclaration* td, std::string& name); /// Returns true if the symbol should be defined in the current module, not just declared. bool mustDefineSymbol(Dsymbol* s); /// Returns true if the symbol needs template linkage, or just external. bool needsTemplateLinkage(Dsymbol* s); /// Returns true if there is any unaligned type inside the aggregate. bool hasUnalignedFields(Type* t); /// DValue* DtoInlineAsmExpr(Loc loc, FuncDeclaration* fd, Expressions* arguments); //////////////////////////////////////////// // gen/tocall.cpp stuff below //////////////////////////////////////////// /// convert DMD calling conv to LLVM unsigned DtoCallingConv(Loc loc, LINK l); /// TypeFunction* DtoTypeFunction(DValue* fnval); /// DValue* DtoVaArg(Loc& loc, Type* type, Expression* valistArg); /// LLValue* DtoCallableValue(DValue* fn); /// const LLFunctionType* DtoExtractFunctionType(const LLType* type); /// void DtoBuildDVarArgList(std::vector<LLValue*>& args, llvm::AttrListPtr& palist, TypeFunction* tf, Expressions* arguments, size_t argidx); /// DValue* DtoCallFunction(Loc& loc, Type* resulttype, DValue* fnval, Expressions* arguments); #endif