typedef void MVMExtOpFunc(MVMThreadContext *tc, MVMuint8 *cur_op);

typedef void MVMExtOpSpesh(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshBB *bb, MVMSpeshIns *ins);

typedef void MVMExtOpFactDiscover(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshIns *ins);

/* Flags we might put on an extension op to indicate its properties. */

#define MVM_EXTOP_PURE          1

#define MVM_EXTOP_NOINLINE      2

#define MVM_EXTOP_INVOKISH      4

#define MVM_EXTOP_NO_JIT        8

#define MVM_EXTOP_ALLOCATING    16

struct MVMExtRegistry {

    MVMDLLSym *sym;

    MVMString *name;

    UT_hash_handle hash_handle;

};

struct MVMExtOpRegistry {

    MVMString *name;

    MVMExtOpFunc *func;

    MVMOpInfo info;

    MVMExtOpSpesh *spesh;

    MVMExtOpFactDiscover *discover;

    MVMuint32 no_jit;

    MVMuint32 allocating;

    UT_hash_handle hash_handle;

};

int MVM_ext_load(MVMThreadContext *tc, MVMString *lib, MVMString *ext);

MVM_PUBLIC int MVM_ext_register_extop(MVMThreadContext *tc, const char *cname,

        MVMExtOpFunc func, MVMuint8 num_operands, MVMuint8 operands[],

        MVMExtOpSpesh *spesh, MVMExtOpFactDiscover *discover, MVMuint32 flags);

const MVMOpInfo * MVM_ext_resolve_extop_record(MVMThreadContext *tc,

        MVMExtOpRecord *record);