view ir/irdsymbol.h @ 1499:df11cdec45a2

Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324. The idea is to separate the notion of const from 'this variable can always be replaced with its initializer' in the frontend. To do that, I introduced Declaration::isSameAsInitializer, which is overridden in VarDeclaration to return false for constants that have a struct literal initializer. So {{{ const S s = S(5); void foo() { auto ps = &s; } // is no longer replaced by void foo() { auto ps = &(S(5)); } }}} To make taking the address of a struct constant with a struct-initializer outside of function scope possible, I made sure that AddrExp::optimize doesn't try to run the argument's optimization with WANTinterpret - that'd again replace the constant with a struct literal temporary.
author Christian Kamm <kamm incasoftware de>
date Sun, 14 Jun 2009 19:49:58 +0200
parents 1860414bf3b7
children
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#ifndef LDC_IR_IRDSYMBOL_H
#define LDC_IR_IRDSYMBOL_H

#include <set>

struct IrModule;
struct IrFunction;
struct IrStruct;
struct IrGlobal;
struct IrLocal;
struct IrField;
struct IrVar;
struct Dsymbol;

namespace llvm {
    struct Value;
}

struct IrDsymbol
{
    static std::set<IrDsymbol*> list;
    static void resetAll();

    // overload all of these to make sure
    // the static list is up to date
    IrDsymbol();
    IrDsymbol(const IrDsymbol& s);
    ~IrDsymbol();

    void reset();

    Module* DModule;

    bool resolved;
    bool declared;
    bool initialized;
    bool defined;

    IrModule* irModule;

    IrStruct* irStruct;

    IrFunction* irFunc;

    IrGlobal* irGlobal;
    IrLocal* irLocal;
    IrField* irField;
    IrVar* getIrVar();
    llvm::Value*& getIrValue();

    bool isSet();
};

#endif