typedef MVMint32 (*MVMJitFunc)(MVMThreadContext *tc, MVMCompUnit *cu, void * label);

struct MVMJitCode {

    MVMJitFunc func_ptr;

    size_t     size;

    MVMuint8  *bytecode;

    MVMStaticFrame *sf;

    /* The basic idea here is that /all/ label names are indexes into

     * the single labels array. This isn't particularly efficient at

     * runtime (because we need a second dereference to figure the

     * labels out), but very simple for me now, and super-easy to

     * optimise at a later date */

    MVMint32       num_labels; /* for labels */

    MVMint32       num_bbs;    /* for bb_labels */

    void         **labels;

    MVMint32      *bb_labels;

    MVMint32       num_deopts;

    MVMint32       num_inlines;

    MVMJitDeopt    *deopts;

    MVMJitInline  *inlines;

    MVMint32       num_handlers; /* for handlers */

    MVMint32       seq_nr;

    MVMJitHandler *handlers;

};

MVMJitCode* MVM_jit_compile_graph(MVMThreadContext *tc, MVMJitGraph *graph);

void MVM_jit_destroy_code(MVMThreadContext *tc, MVMJitCode *code);

MVMint32 MVM_jit_enter_code(MVMThreadContext *tc, MVMCompUnit *cu,

                            MVMJitCode * code);

#define MVM_JIT_CTRL_DEOPT -1

#define MVM_JIT_CTRL_NORMAL 0