/* Maximum args a call can take for us to consider it for optimization. */

#define MAX_ARGS_FOR_OPT 8

/* Percentage of type tuples that we expect to match at a callsite in order to

 * consider those what we should guard agaisnt (causing a deopt on mismatch).

 * So if this is 99, then we expect 1% of calls may deopt. */

#define MVM_SPESH_CALLSITE_STABLE_PERCENT 99

/* Information we've gathered about the current call we're optimizing, and the

 * arguments it will take. */

struct MVMSpeshCallInfo {

    MVMCallsite   *cs;

    MVMint8        arg_is_const[MAX_ARGS_FOR_OPT];

    MVMSpeshFacts *arg_facts[MAX_ARGS_FOR_OPT];

    MVMSpeshIns   *prepargs_ins;

    MVMSpeshBB    *prepargs_bb;

    MVMSpeshIns   *arg_ins[MAX_ARGS_FOR_OPT];

};

void MVM_spesh_optimize(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshPlanned *p);

MVM_PUBLIC MVMint16 MVM_spesh_add_spesh_slot(MVMThreadContext *tc, MVMSpeshGraph *g, MVMCollectable *c);

MVMint16 MVM_spesh_add_spesh_slot_try_reuse(MVMThreadContext *tc, MVMSpeshGraph *g, MVMCollectable *c);

MVM_PUBLIC MVMSpeshFacts * MVM_spesh_get_and_use_facts(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshOperand o);

MVM_PUBLIC MVMSpeshFacts * MVM_spesh_get_facts(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshOperand o);

MVM_PUBLIC void MVM_spesh_use_facts(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshFacts *f);

MVM_PUBLIC MVMString * MVM_spesh_get_string(MVMThreadContext *tc, MVMSpeshGraph *g, MVMSpeshOperand o);