view ir/irvar.h @ 1494:b243e28f63d4

Generate less dead code by deleting unreachable blocks at the end of functions (which would otherwise appear if a function ends with a return, for example).
author Frits van Bommel <fvbommel wxs.nl>
date Fri, 12 Jun 2009 16:41:38 +0200
parents 0c03ba6f7c24
children
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#ifndef LDC_IR_IRVAR_H
#define LDC_IR_IRVAR_H

#include "ir/ir.h"
#include "llvm/Type.h"

struct IrVar : IrBase
{
    IrVar(VarDeclaration* var);

    VarDeclaration* V;
    llvm::Value* value;
};

// represents a global variable
struct IrGlobal : IrVar
{
    IrGlobal(VarDeclaration* v);

    llvm::PATypeHolder type;
    llvm::Constant* constInit;
};

// represents a local variable variable
struct IrLocal : IrVar
{
    IrLocal(VarDeclaration* v);

    bool byref;         // Not used for -nested-ctx=array
    int nestedDepth;    // ditto
    int nestedIndex;
};

// represents an aggregate field variable
struct IrField : IrVar
{
    IrField(VarDeclaration* v);

    unsigned index;
    unsigned unionOffset;

    llvm::Constant* getDefaultInit();

protected:
    /// FIXME: only used for StructLiteralsExps
    llvm::Constant* constInit;
};

#endif