-#ifndef REG_R1
- /*
- * raiseAsync assumes that the stack is in ThreadRunGHC state,
- * i.e. with a return address on the top. In unreg mode, the
- * return value for IO is on top of the return address, so we
- * need to make a small adjustment here.
- */
- Sp_adj(1);
-#endif
+ STK_CHK_GEN( WDS(2), R1_PTR, stg_unblockAsyncExceptionszh_ret_info);
+ Sp_adj(-2);
+ Sp(1) = R1;
+ Sp(0) = stg_gc_unpt_r1_info;