+/* Set various status flags when building a CALL_EXPR object T. */
+
+static void
+process_call_operands (tree t)
+{
+ bool side_effects;
+
+ side_effects = TREE_SIDE_EFFECTS (t);
+ if (!side_effects)
+ {
+ int i, n;
+ n = TREE_OPERAND_LENGTH (t);
+ for (i = 1; i < n; i++)
+ {
+ tree op = TREE_OPERAND (t, i);
+ if (op && TREE_SIDE_EFFECTS (op))
+ {
+ side_effects = 1;
+ break;
+ }
+ }
+ }
+ if (!side_effects)
+ {
+ int i;
+
+ /* Calls have side-effects, except those to const or
+ pure functions. */
+ i = call_expr_flags (t);
+ if (!(i & (ECF_CONST | ECF_PURE)))
+ side_effects = 1;
+ }
+ TREE_SIDE_EFFECTS (t) = side_effects;
+}
+
+/* Build a tcc_vl_exp object with code CODE and room for LEN operands. LEN
+ includes the implicit operand count in TREE_OPERAND 0, and so must be >= 1.
+ Except for the CODE and operand count field, other storage for the
+ object is initialized to zeros. */
+
+tree
+build_vl_exp_stat (enum tree_code code, int len MEM_STAT_DECL)
+{
+ tree t;
+ int length = (len - 1) * sizeof (tree) + sizeof (struct tree_exp);
+
+ gcc_assert (TREE_CODE_CLASS (code) == tcc_vl_exp);
+ gcc_assert (len >= 1);
+
+#ifdef GATHER_STATISTICS
+ tree_node_counts[(int) e_kind]++;
+ tree_node_sizes[(int) e_kind] += length;
+#endif
+
+ t = ggc_alloc_zone_pass_stat (length, &tree_zone);
+
+ memset (t, 0, length);
+
+ TREE_SET_CODE (t, code);
+
+ /* Can't use TREE_OPERAND to store the length because if checking is
+ enabled, it will try to check the length before we store it. :-P */
+ t->exp.operands[0] = build_int_cst (sizetype, len);
+
+ return t;
+}
+
+
+/* Build a CALL_EXPR of class tcc_vl_exp with the indicated RETURN_TYPE
+ and FN and a null static chain slot. ARGLIST is a TREE_LIST of the
+ arguments. */
+
+tree
+build_call_list (tree return_type, tree fn, tree arglist)
+{
+ tree t;
+ int i;
+
+ t = build_vl_exp (CALL_EXPR, list_length (arglist) + 3);
+ TREE_TYPE (t) = return_type;
+ CALL_EXPR_FN (t) = fn;
+ CALL_EXPR_STATIC_CHAIN (t) = NULL_TREE;
+ for (i = 0; arglist; arglist = TREE_CHAIN (arglist), i++)
+ CALL_EXPR_ARG (t, i) = TREE_VALUE (arglist);
+ process_call_operands (t);
+ return t;
+}
+
+/* Build a CALL_EXPR of class tcc_vl_exp with the indicated RETURN_TYPE and
+ FN and a null static chain slot. NARGS is the number of call arguments
+ which are specified as "..." arguments. */
+
+tree
+build_call_nary (tree return_type, tree fn, int nargs, ...)
+{
+ tree ret;
+ va_list args;
+ va_start (args, nargs);
+ ret = build_call_valist (return_type, fn, nargs, args);
+ va_end (args);
+ return ret;
+}
+
+/* Build a CALL_EXPR of class tcc_vl_exp with the indicated RETURN_TYPE and
+ FN and a null static chain slot. NARGS is the number of call arguments
+ which are specified as a va_list ARGS. */
+
+tree
+build_call_valist (tree return_type, tree fn, int nargs, va_list args)
+{
+ tree t;
+ int i;
+
+ t = build_vl_exp (CALL_EXPR, nargs + 3);
+ TREE_TYPE (t) = return_type;
+ CALL_EXPR_FN (t) = fn;
+ CALL_EXPR_STATIC_CHAIN (t) = NULL_TREE;
+ for (i = 0; i < nargs; i++)
+ CALL_EXPR_ARG (t, i) = va_arg (args, tree);
+ process_call_operands (t);
+ return t;
+}
+
+/* Build a CALL_EXPR of class tcc_vl_exp with the indicated RETURN_TYPE and
+ FN and a null static chain slot. NARGS is the number of call arguments
+ which are specified as a tree array ARGS. */
+
+tree
+build_call_array (tree return_type, tree fn, int nargs, tree *args)
+{
+ tree t;
+ int i;
+
+ t = build_vl_exp (CALL_EXPR, nargs + 3);
+ TREE_TYPE (t) = return_type;
+ CALL_EXPR_FN (t) = fn;
+ CALL_EXPR_STATIC_CHAIN (t) = NULL_TREE;
+ for (i = 0; i < nargs; i++)
+ CALL_EXPR_ARG (t, i) = args[i];
+ process_call_operands (t);
+ return t;
+}
+
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