#ifndef COMPILER_IROUSEDEF_H
#define COMPILER_IROUSEDEF_H

#include "IrOptimizer.h"
#include "BitVector.h"
#include "compiler/enode.h"

#ifdef __MWERKS__
#pragma options align=mac68k
#endif
struct IROUse {
    SInt32 index;
    IRONode *node;
    IROLinear *linear;
    VarRecord *var;
    IROUse *globalnext;
    IROUse *varnext;
    BitVector *x18;
    UInt16 x1C;
};
struct IRODef {
    SInt32 index;
    IRONode *node;
    IROLinear *linear;
    VarRecord *var;
    IRODef *globalnext;
    IRODef *varnext;
    UInt16 x18;
    Boolean x1A;
    Boolean x1B;
    Boolean x1C;
    Boolean x1D;
};
#ifdef __MWERKS__
#pragma options align=reset
#endif

extern ENodeType IRO_NonAssignmentOp[MAXEXPR];
extern IROUse *IRO_FirstVarUse;
extern IROUse *IRO_LastVarUse;

extern CInt64 IRO_GetSelfAssignmentVal(IROLinear *linear);
extern void IRO_InitializeNonAssignmentOpArray(void);
extern void IRO_InitializeAssignmentFoldingFunctionArray(void);
extern Boolean IRO_UseDef(Boolean optDeadAssignments, Boolean optPropagation);
extern void IRO_SplitLifetimes(void);

#endif