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Update trace recorder infrastructure for hot calls.

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This commit is contained in:
Mike Pall
2010-02-18 03:43:09 +01:00
parent 2f300fb66a
commit 59f54be9d3
3 changed files with 17 additions and 15 deletions
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19
src/lj_record.c
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@@ -2248,6 +2248,11 @@ static const BCIns *rec_setup_root(jit_State *J)
J->maxslot = ra;
pc++;
break;
case BC_FUNCF:
/* No bytecode range check for root traces started by a hot call. */
J->maxslot = J->pt->numparams;
pc++;
break;
default:
lua_assert(0);
break;
@@ -2370,15 +2375,11 @@ void lj_record_setup(jit_State *J)
rec_stop(J, TRACE_INTERP);
} else { /* Root trace. */
J->cur.root = 0;
if (J->pc >= proto_bc(J->pt)) { /* Not a hot CALL? */
J->cur.startins = *J->pc;
J->pc = rec_setup_root(J);
/* Note: the loop instruction itself is recorded at the end and not
** at the start! So snapshot #0 needs to point to the *next* instruction.
*/
} else {
J->cur.startins = BCINS_ABC(BC_CALL, 0, 0, 0);
}
J->cur.startins = *J->pc;
J->pc = rec_setup_root(J);
/* Note: the loop instruction itself is recorded at the end and not
** at the start! So snapshot #0 needs to point to the *next* instruction.
*/
lj_snap_add(J);
if (bc_op(J->cur.startins) == BC_FORL)
rec_setup_forl(J, J->pc-1);