1688   rtx note;  in hash_scan_set()  local
1702       note = find_reg_equal_equiv_note (insn);  in hash_scan_set()
1703       if (note != 0  in hash_scan_set()
1705 	      ? gcse_constant_p (XEXP (note, 0))  in hash_scan_set()
1706 	      : want_to_gcse_p (XEXP (note, 0))))  in hash_scan_set()
1707 	src = XEXP (note, 0), pat = gen_rtx_SET (VOIDmode, dest, src);  in hash_scan_set()
1727 	  && (note == NULL_RTX || ! MEM_P (XEXP (note, 0))))  in hash_scan_set()
1785 	   && ((note = find_reg_note (insn, REG_EQUIV, NULL_RTX)) == 0  in hash_scan_set()
1786 	       || ! MEM_P (XEXP (note, 0))))  in hash_scan_set()
2645   rtx note = find_reg_equal_equiv_note (insn);  in try_replace_reg()  local
2665   if (note != 0 && REG_NOTE_KIND (note) == REG_EQUAL)  in try_replace_reg()
2666     XEXP (note, 0) = simplify_replace_rtx (XEXP (note, 0), from, to);  in try_replace_reg()
2682       if (!success && note == 0 && set != 0  in try_replace_reg()
2685 	note = set_unique_reg_note (insn, REG_EQUAL, copy_rtx (src));  in try_replace_reg()
2692   if (note && REG_NOTE_KIND (note) == REG_EQUAL && REG_P (XEXP (note, 0)))  in try_replace_reg()
2693     remove_note (insn, note);  in try_replace_reg()
2777   rtx note = find_reg_equal_equiv_note (jump);  in cprop_jump()  local
2779   if (note)  in cprop_jump()
2781       note_src = XEXP (note, 0);  in cprop_jump()
2840 	remove_note (jump, note);  in cprop_jump()
2913   rtx note;  in cprop_insn()  local
2921   note = find_reg_equal_equiv_note (insn);  in cprop_insn()
2924   if (note)  in cprop_insn()
2925     find_used_regs (&XEXP (note, 0), NULL);  in cprop_insn()
3069 	  rtx note;  in do_local_cprop()  local
3083 	      && (!(note = find_reg_note (l->setting_insn, REG_EQUIV, NULL_RTX))  in do_local_cprop()
3084 		  || ! MEM_P (XEXP (note, 0))))  in do_local_cprop()
3139       rtx note = find_reg_equal_equiv_note (end);  in adjust_libcall_notes()  local
3141       if (! note)  in adjust_libcall_notes()
3150 		  note = find_reg_equal_equiv_note (end);  in adjust_libcall_notes()
3151 		  if (! note)  in adjust_libcall_notes()
3153 		  if (reg_mentioned_p (newval, XEXP (note, 0)))  in adjust_libcall_notes()
3160       XEXP (note, 0) = simplify_replace_rtx (XEXP (note, 0), oldreg, newval);  in adjust_libcall_notes()
3190 	      rtx note = find_reg_note (insn, REG_LIBCALL, NULL_RTX);  in local_cprop_pass()  local
3192 	      if (note)  in local_cprop_pass()
3195 		  *--libcall_sp = XEXP (note, 0);  in local_cprop_pass()
3197 	      note = find_reg_note (insn, REG_RETVAL, NULL_RTX);  in local_cprop_pass()
3198 	      if (note)  in local_cprop_pass()
3200 	      note = find_reg_equal_equiv_note (insn);  in local_cprop_pass()
3206 		  if (note)  in local_cprop_pass()
3207 		    local_cprop_find_used_regs (&XEXP (note, 0), NULL);  in local_cprop_pass()
3521   rtx insn, note;  in bypass_block()  local
3533   note = find_reg_equal_equiv_note (insn);  in bypass_block()
3534   if (note)  in bypass_block()
3535     find_used_regs (&XEXP (note, 0), NULL);  in bypass_block()
4012       rtx note;  in insert_insn_end_bb()  local
4031       note = find_reg_note (insn, REG_CC_SETTER, NULL_RTX);  in insert_insn_end_bb()
4032       if (note)  in insert_insn_end_bb()
4033 	insn = XEXP (note, 0);  in insert_insn_end_bb()
4378   rtx note;  in gcse_emit_move_after()  local
4390   if ((note = find_reg_equal_equiv_note (insn)))  in gcse_emit_move_after()
4391     eqv = XEXP (note, 0);  in gcse_emit_move_after()
5912   rtx reg, base, note;  in store_killed_in_insn()  local
5970   note = find_reg_equal_equiv_note (insn);  in store_killed_in_insn()
5971   if (! note)  in store_killed_in_insn()
5973   note = XEXP (note, 0);  in store_killed_in_insn()
5977   if (expr_equiv_p (note, x))  in store_killed_in_insn()
5981   return find_loads (note, x, after);  in store_killed_in_insn()
6233   rtx last, insn, note;  in remove_reachable_equiv_notes()  local
6281 	    note = find_reg_equal_equiv_note (insn);  in remove_reachable_equiv_notes()
6282 	    if (!note || !expr_equiv_p (XEXP (note, 0), mem))  in remove_reachable_equiv_notes()
6288 	    remove_note (insn, note);  in remove_reachable_equiv_notes()
6310   rtx insn, mem, note, set, ptr, pair;  in replace_store_insn()  local
6337   note = find_reg_note (insn, REG_RETVAL, NULL_RTX);  in replace_store_insn()
6338   if (note)  in replace_store_insn()
6340       pair = XEXP (note, 0);  in replace_store_insn()
6341       note = find_reg_note (pair, REG_LIBCALL, NULL_RTX);  in replace_store_insn()
6342       XEXP (note, 0) = insn;  in replace_store_insn()
6344   note = find_reg_note (insn, REG_LIBCALL, NULL_RTX);  in replace_store_insn()
6345   if (note)  in replace_store_insn()
6347       pair = XEXP (note, 0);  in replace_store_insn()
6348       note = find_reg_note (pair, REG_RETVAL, NULL_RTX);  in replace_store_insn()
6349       XEXP (note, 0) = insn;  in replace_store_insn()
6365 	note = find_reg_equal_equiv_note (insn);  in replace_store_insn()
6366 	if (!note || !expr_equiv_p (XEXP (note, 0), mem))  in replace_store_insn()
6372 	remove_note (insn, note);  in replace_store_insn()