dist/gcc/rtlanal.c

552 	  poly_int64 stack_boundary = PREFERRED_STACK_BOUNDARY / BITS_PER_UNIT;
581 	      low_bound  = sp_offset - red_zone_size - stack_boundary;
587 			   + stack_boundary;
589 	      high_bound = sp_offset + red_zone_size + stack_boundary;
595 			   - stack_boundary;
605 	      low_bound  = - red_zone_size - stack_boundary;
611 			   + stack_boundary;
613 	      high_bound = red_zone_size + stack_boundary;
619 			   - stack_boundary;
629 			   + stack_boundary;
631 			   - crtl->args.size - stack_boundary;
634 			   - stack_boundary;
636 			   + crtl->args.size + stack_boundary;