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Count frames with same prototype in call unroll limit check.

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Mike Pall 2011-11-20 17:59:41 +01:00
parent f8a4769fb2
commit cc7a12be93
1 changed files with 8 additions and 4 deletions
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12
src/lj_record.c
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@ -1297,12 +1297,16 @@ static TRef rec_upvalue(jit_State *J, uint32_t uv, TRef val)
/* Check unroll limits for calls. */
static void check_call_unroll(jit_State *J, TraceNo lnk)
{
IRRef fref = tref_ref(J->base[-1]);
cTValue *frame = J->L->base - 1;
void *pc = mref(frame_func(frame)->l.pc, void);
int32_t depth = J->framedepth;
int32_t count = 0;
BCReg s;
for (s = J->baseslot - 1; s > 0; s--)
if ((J->slot[s] & TREF_FRAME) && tref_ref(J->slot[s]) == fref)
if ((J->pt->flags & PROTO_VARARG)) depth--; /* Vararg frame still missing. */
for (; depth > 0; depth--) { /* Count frames with same prototype. */
frame = frame_prev(frame);
if (mref(frame_func(frame)->l.pc, void) == pc)
count++;
}
if (J->pc == J->startpc) {
if (count + J->tailcalled > J->param[JIT_P_recunroll]) {
J->pc++;