base = TREE_OPERAND (lvalue, 0);
else
{
- base = TREE_OPERAND (base, 0);
- if (flag_bounds_check)
- base = TREE_OPERAND (base, 1);
- if (flag_check_references)
- base = TREE_OPERAND (base, 1);
- base = TREE_OPERAND (base, 0);
+ tree op = TREE_OPERAND (base, 0);
+
+ /* We can have a SAVE_EXPR here when doing String +=. */
+ if (TREE_CODE (op) == SAVE_EXPR)
+ op = TREE_OPERAND (op, 0);
+ if (flag_bounds_check)
+ base = TREE_OPERAND (TREE_OPERAND (op, 1), 0);
+ else
+ base = TREE_OPERAND (op, 0);
}
/* Build the invocation of _Jv_CheckArrayStore */
TREE_OPERAND (lvalue, 1) = build (COMPOUND_EXPR, lhs_type,
check, TREE_OPERAND (lvalue, 1));
}
- else
+ else if (flag_bounds_check)
{
+ tree hook = lvalue;
+ tree compound = TREE_OPERAND (lvalue, 0);
+ tree bound_check, new_compound;
+
+ if (TREE_CODE (compound) == SAVE_EXPR)
+ {
+ compound = TREE_OPERAND (compound, 0);
+ hook = TREE_OPERAND (hook, 0);
+ }
+
+ /* Find the array bound check, hook the original array access. */
+ bound_check = TREE_OPERAND (compound, 0);
+ TREE_OPERAND (hook, 0) = TREE_OPERAND (compound, 1);
+
/* Make sure the bound check will happen before the store check */
- if (flag_bounds_check)
- TREE_OPERAND (TREE_OPERAND (lvalue, 0), 0) =
- build (COMPOUND_EXPR, void_type_node,
- TREE_OPERAND (TREE_OPERAND (lvalue, 0), 0), check);
- else
- lvalue = build (COMPOUND_EXPR, lhs_type, check, lvalue);
- }
+ new_compound =
+ build (COMPOUND_EXPR, void_type_node, bound_check, check);
+
+ /* Re-assemble the augmented array access. */
+ lvalue = build (COMPOUND_EXPR, lhs_type, new_compound, lvalue);
+ }
+ else
+ lvalue = build (COMPOUND_EXPR, lhs_type, check, lvalue);
}
/* Final locals can be used as case values in switch