482   rtx note;  in validate_equiv_mem()  local
511       for (note = REG_NOTES (insn); note; note = XEXP (note, 1))  in validate_equiv_mem()
512 	if ((REG_NOTE_KIND (note) == REG_INC  in validate_equiv_mem()
513 	     || REG_NOTE_KIND (note) == REG_DEAD)  in validate_equiv_mem()
514 	    && REG_P (XEXP (note, 0))  in validate_equiv_mem()
515 	    && reg_overlap_mentioned_p (XEXP (note, 0), memref))  in validate_equiv_mem()
820 	  rtx note;  in update_equiv_regs()  local
828 	  for (note = REG_NOTES (insn); note; note = XEXP (note, 1))  in update_equiv_regs()
829 	    if (REG_NOTE_KIND (note) == REG_INC)  in update_equiv_regs()
830 	      no_equiv (XEXP (note, 0), note, NULL);  in update_equiv_regs()
858 	  note = find_reg_note (insn, REG_EQUIV, NULL_RTX);  in update_equiv_regs()
859 	  if (note)  in update_equiv_regs()
869 	      if (rtx_equal_p (src, XEXP (note, 0)))  in update_equiv_regs()
904 	  note = find_reg_note (insn, REG_EQUAL, NULL_RTX);  in update_equiv_regs()
909 	  if (! note && ! rtx_varies_p (src, 0))  in update_equiv_regs()
910 	    note = set_unique_reg_note (insn, REG_EQUAL, src);  in update_equiv_regs()
914 	  if (note && GET_CODE (XEXP (note, 0)) == EXPR_LIST)  in update_equiv_regs()
915 	    note = NULL_RTX;  in update_equiv_regs()
918 	      && (! note  in update_equiv_regs()
919 		  || rtx_varies_p (XEXP (note, 0), 0)  in update_equiv_regs()
921 		      && ! rtx_equal_p (XEXP (note, 0),  in update_equiv_regs()
933 	  if (note && ! rtx_varies_p (XEXP (note, 0), 0))  in update_equiv_regs()
934 	    PUT_MODE (note, (enum machine_mode) REG_EQUIV);  in update_equiv_regs()
951 	  note = find_reg_note (insn, REG_EQUIV, NULL_RTX);  in update_equiv_regs()
953 	  if (note == 0 && REG_BASIC_BLOCK (regno) >= 0  in update_equiv_regs()
956 	    REG_NOTES (insn) = note = gen_rtx_EXPR_LIST (REG_EQUIV, SET_SRC (set),  in update_equiv_regs()
959 	  if (note)  in update_equiv_regs()
962 	      rtx x = XEXP (note, 0);  in update_equiv_regs()
1133 		      rtx note;  in update_equiv_regs()  local
1144 			  note = equiv_link;  in update_equiv_regs()
1146 			  if (REG_NOTE_KIND (note) == REG_DEAD)  in update_equiv_regs()
1148 			      remove_note (equiv_insn, note);  in update_equiv_regs()
1149 			      XEXP (last_link, 1) = note;  in update_equiv_regs()
1150 			      XEXP (note, 1) = NULL_RTX;  in update_equiv_regs()
1151 			      last_link = note;  in update_equiv_regs()
1285   rtx note, hard_reg;  in block_alloc()  local
1465 	      && (note = find_reg_note (XEXP (link, 0), REG_EQUAL,  in block_alloc()
1468 	      if (r1 = XEXP (note, 0), REG_P (r1)  in block_alloc()
1472 	      else if (GET_RTX_FORMAT (GET_CODE (XEXP (note, 0)))[0] == 'e'  in block_alloc()
1473 		       && (r1 = XEXP (XEXP (note, 0), 0),  in block_alloc()
1480 	      else if (COMMUTATIVE_P (XEXP (note, 0))  in block_alloc()
1481 		       && (r1 = XEXP (XEXP (note, 0), 1),  in block_alloc()
1536 	  if ((note = find_reg_note (insn, REG_RETVAL, NULL_RTX)) != 0  in block_alloc()
1537 	      && NONJUMP_INSN_P (XEXP (note, 0))  in block_alloc()
1538 	      && GET_CODE (PATTERN (XEXP (note, 0))) == CLOBBER)  in block_alloc()
2415   rtx note = find_reg_note (insn, REG_LIBCALL, NULL_RTX);  in no_conflict_p()  local
2421   if (note == 0  in no_conflict_p()
2427   last = XEXP (note, 0);  in no_conflict_p()