dist/gcc/tree-dfa.c

380 get_ref_base_and_extent (tree exp, poly_int64_pod *poffset,
393   if (TREE_CODE (exp) == COMPONENT_REF)
394     size_tree = DECL_SIZE (TREE_OPERAND (exp, 1));
395   else if (TREE_CODE (exp) == BIT_FIELD_REF)
396     size_tree = TREE_OPERAND (exp, 1);
397   else if (!VOID_TYPE_P (TREE_TYPE (exp)))
399       machine_mode mode = TYPE_MODE (TREE_TYPE (exp));
401 	size_tree = TYPE_SIZE (TREE_TYPE (exp));
409   *preverse = reverse_storage_order_for_component_p (exp);
419       switch (TREE_CODE (exp))
422 	  bit_offset += wi::to_poly_offset (TREE_OPERAND (exp, 2));
427 	    tree field = TREE_OPERAND (exp, 1);
428 	    tree this_offset = component_ref_field_offset (exp);
443 		    tree stype = TREE_TYPE (TREE_OPERAND (exp, 0));
476 		tree csize = TYPE_SIZE (TREE_TYPE (TREE_OPERAND (exp, 0)));
493 	    tree index = TREE_OPERAND (exp, 1);
498 		&& (low_bound = array_ref_low_bound (exp),
500 		&& (unit_size = array_ref_element_size (exp),
518 		tree asize = TYPE_SIZE (TREE_TYPE (TREE_OPERAND (exp, 0)));
535 		    && (low_bound = array_ref_low_bound (exp),
537 		    && (unit_size = array_ref_element_size (exp),
592 	  if (TREE_CODE (TMR_BASE (exp)) == ADDR_EXPR
593 	      && (TMR_INDEX (exp) || TMR_INDEX2 (exp)))
595 	      exp = TREE_OPERAND (TMR_BASE (exp), 0);
614 	      && (TYPE_SIZE (TREE_TYPE (exp)) == NULL_TREE
615 		  || !poly_int_tree_p (TYPE_SIZE (TREE_TYPE (exp)))
618 		       wi::to_poly_offset (TYPE_SIZE (TREE_TYPE (exp)))))))
622 	  if (TREE_CODE (TREE_OPERAND (exp, 0)) == ADDR_EXPR)
624 	      if (integer_zerop (TREE_OPERAND (exp, 1)))
625 		exp = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
628 		  poly_offset_int off = mem_ref_offset (exp);
635 		      exp = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
645       exp = TREE_OPERAND (exp, 0);
655       return exp;
666       return exp;
671   if (DECL_P (exp))
673       if (VAR_P (exp)
674 	  && ((flag_unconstrained_commons && DECL_COMMON (exp))
675 	      || (DECL_EXTERNAL (exp) && seen_variable_array_ref)))
677 	  tree sz_tree = TYPE_SIZE (TREE_TYPE (exp));
680 	  if (TREE_CODE (TREE_TYPE (exp)) == ARRAY_TYPE
691 	       && DECL_SIZE (exp)
692 	       && poly_int_tree_p (DECL_SIZE (exp)))
693 	maxsize = wi::to_poly_offset (DECL_SIZE (exp)) - bit_offset;
695   else if (CONSTANT_CLASS_P (exp))
700 	  && TYPE_SIZE (TREE_TYPE (exp))
701 	  && poly_int_tree_p (TYPE_SIZE (TREE_TYPE (exp))))
702 	maxsize = (wi::to_poly_offset (TYPE_SIZE (TREE_TYPE (exp)))
719       return exp;
722   return exp;
730 get_ref_base_and_extent_hwi (tree exp, HOST_WIDE_INT *poffset,
736   tree decl = get_ref_base_and_extent (exp, &offset, &size, &max_size,
759 get_addr_base_and_unit_offset_1 (tree exp, poly_int64_pod *poffset,
768       switch (TREE_CODE (exp))
774 	    if (!poly_int_tree_p (TREE_OPERAND (exp, 2), &this_bit_offset)
784 	    tree field = TREE_OPERAND (exp, 1);
785 	    tree this_offset = component_ref_field_offset (exp);
803 	    tree index = TREE_OPERAND (exp, 1);
812 		&& (low_bound = array_ref_low_bound (exp),
814 		&& (unit_size = array_ref_element_size (exp),
833 	  byte_offset += TREE_INT_CST_LOW (TYPE_SIZE_UNIT (TREE_TYPE (exp)));
841 	    tree base = TREE_OPERAND (exp, 0);
849 		if (!integer_zerop (TREE_OPERAND (exp, 1)))
851 		    poly_offset_int off = mem_ref_offset (exp);
854 		exp = TREE_OPERAND (base, 0);
861 	    tree base = TREE_OPERAND (exp, 0);
869 		if (TMR_INDEX (exp) || TMR_INDEX2 (exp))
871 		if (!integer_zerop (TMR_OFFSET (exp)))
873 		    poly_offset_int off = mem_ref_offset (exp);
876 		exp = TREE_OPERAND (base, 0);
885       exp = TREE_OPERAND (exp, 0);
890   return exp;
899 get_addr_base_and_unit_offset (tree exp, poly_int64_pod *poffset)
901   return get_addr_base_and_unit_offset_1 (exp, poffset, NULL);