getApStackValzh_fast
{
- W_ ap_stack, offset, val;
+ W_ ap_stack, offset, val, ok;
- /* args: R1 = tso, R2 = offset */
+ /* args: R1 = AP_STACK, R2 = offset */
ap_stack = R1;
offset = R2;
- val = StgClosure_payload(ap_stack,offset);
-
- RET_P(val);
+ if (%INFO_PTR(ap_stack) == stg_AP_STACK_info) {
+ ok = 1;
+ val = StgAP_STACK_payload(ap_stack,offset);
+ } else {
+ ok = 0;
+ val = R1;
+ }
+ RET_NP(ok,val);
}