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Implement first D-specific optimization pass: -simplify-drtcalls. It uses the machinery of the standard -simplify-libcalls pass, but optimizes calls to the D runtime instead of calls to C libraries. At the moment, these optimizations are implemented by this pass: - Avoid the runtime call for `arr.length = newlen` if it can determine that the new length isn't longer than the old one. - Ditto for `cast(T[]) arr` if it will clearly always succeed. (e.g. if the length of the original array is zero, or if the old element size is a multiple of the new element size)
author Frits van Bommel <fvbommel wxs.nl>
date Tue, 28 Apr 2009 21:58:06 +0200
parents 79758fd2f48a
children 5d0c043ff131
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#ifndef LDC_GEN_CLASSES_H
#define LDC_GEN_CLASSES_H

#include "gen/structs.h"

/// Resolves the llvm type for a class declaration
void DtoResolveClass(ClassDeclaration* cd);

/// Provides the llvm declaration for a class declaration
void DtoDeclareClass(ClassDeclaration* cd);

/// Constructs the constant initializer for a class declaration
void DtoConstInitClass(ClassDeclaration* cd);

/// Provides the llvm definition for a class declaration
void DtoDefineClass(ClassDeclaration* cd);

/// Builds the initializer of cd's ClassInfo.
/// FIXME: this should be put into IrStruct and eventually IrClass.
LLConstant* DtoDefineClassInfo(ClassDeclaration* cd);

DValue* DtoNewClass(Loc loc, TypeClass* type, NewExp* newexp);
void DtoInitClass(TypeClass* tc, LLValue* dst);
DValue* DtoCallClassCtor(TypeClass* type, CtorDeclaration* ctor, Array* arguments, LLValue* mem);
void DtoFinalizeClass(LLValue* inst);

DValue* DtoCastClass(DValue* val, Type* to);
DValue* DtoDynamicCastObject(DValue* val, Type* to);

DValue* DtoCastInterfaceToObject(DValue* val, Type* to);
DValue* DtoDynamicCastInterface(DValue* val, Type* to);

LLValue* DtoIndexClass(LLValue* src, ClassDeclaration* sd, VarDeclaration* vd);

LLValue* DtoVirtualFunctionPointer(DValue* inst, FuncDeclaration* fdecl);

#endif