-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
-
-/* Tree nodes relevant to both C and C++. These were originally in
-cp-tree.def in the cp subdir. */
-
-DEFTREECODE (SIZEOF_EXPR, "sizeof_expr", '1', 1)
-DEFTREECODE (ARROW_EXPR, "arrow_expr", 'e', 1)
-DEFTREECODE (ALIGNOF_EXPR, "alignof_expr", '1', 1)
-
-/* Used to represent an expression statement. Use `EXPR_STMT_EXPR' to
- obtain the expression. */
-DEFTREECODE (EXPR_STMT, "expr_stmt", 'e', 1)
-
-/* Used to represent a brace-enclosed block. The operand is
- COMPOUND_BODY. */
-DEFTREECODE (COMPOUND_STMT, "compound_stmt", 'e', 1)
-
-/* Used to represent a local declaration. The operand is
- DECL_STMT_DECL. */
-DEFTREECODE (DECL_STMT, "decl_stmt", 'e', 1)
-
-/* Represents an 'if' statement. The operands are IF_COND,
- THEN_CLAUSE, and ELSE_CLAUSE, respectively. */
-DEFTREECODE (IF_STMT, "if_stmt", 'e', 3)
-
-/* Used to represent a `for' statement. The operands are
- FOR_INIT_STMT, FOR_COND, FOR_EXPR, and FOR_BODY, respectively. */
-DEFTREECODE (FOR_STMT, "for_stmt", 'e', 4)
-
-/* Used to represent a 'while' statement. The operands are WHILE_COND
- and WHILE_BODY, respectively. */
-DEFTREECODE (WHILE_STMT, "while_stmt", 'e', 2)
-
-/* Used to represent a 'do' statement. The operands are DO_BODY and
- DO_COND, respectively. */
-DEFTREECODE (DO_STMT, "do_stmt", 'e', 2)
-
-/* Used to represent a 'return' statement. The operand is
- RETURN_STMT_EXPR. */
-DEFTREECODE (RETURN_STMT, "return_stmt", 'e', 1)
-
-/* Used to represent a 'break' statement. */
-DEFTREECODE (BREAK_STMT, "break_stmt", 'e', 0)
-
-/* Used to represent a 'continue' statement. */
-DEFTREECODE (CONTINUE_STMT, "continue_stmt", 'e', 0)
-
-/* Used to represent a 'switch' statement. The operands are
- SWITCH_COND, SWITCH_BODY and SWITCH_TYPE, respectively. */
-DEFTREECODE (SWITCH_STMT, "switch_stmt", 'e', 3)
-
-/* Used to represent a 'goto' statement. The operand is GOTO_DESTINATION. */
-DEFTREECODE (GOTO_STMT, "goto_stmt", 'e', 1)
-
-/* Used to represent a 'label' statement. The operand is a LABEL_DECL
- and can be obtained through the macro LABEL_STMT_LABEL. */
-DEFTREECODE (LABEL_STMT, "label_stmt", 'e', 1)
-
-/* Used to represent an inline assembly statement. */
-DEFTREECODE (ASM_STMT, "asm_stmt", 'e', 4)
-
-/* A SCOPE_STMT marks the beginning or end of a scope. If
- SCOPE_BEGIN_P holds, then this is the start of a scope. If
- SCOPE_END_P holds, then this is the end of a scope. If
- SCOPE_NULLIFIED_P holds then there turned out to be no variables in
- this scope. The SCOPE_STMT_BLOCK is the BLOCK containing the
- variables declared in this scope. */
-DEFTREECODE (SCOPE_STMT, "scope_stmt", 'e', 1)
-
-/* Used to represent a CASE_LABEL. The operands are CASE_LOW and
- CASE_HIGH, respectively. If CASE_LOW is NULL_TREE, the label is a
- 'default' label. If CASE_HIGH is NULL_TREE, the label is a normal case
- label. The CASE_LABEL_DECL is a LABEL_DECL for this node. */
-DEFTREECODE (CASE_LABEL, "case_label", 'e', 3)
-
-/* A STMT_EXPR represents a statement-expression. The
- STMT_EXPR_STMT is the statement given by the expression. */
-DEFTREECODE (STMT_EXPR, "stmt_expr", 'e', 1)
-
-/* A COMPOUND_LITERAL_EXPR represents a C99 compound literal. The
- COMPOUND_LITERAL_EXPR_DECL_STMT is the a DECL_STMT containing the decl
- for the anonymous object represented by the COMPOUND_LITERAL;
- the DECL_INITIAL of that decl is the CONSTRUCTOR that initializes
- the compound literal. */
-DEFTREECODE (COMPOUND_LITERAL_EXPR, "compound_literal_expr", 'e', 1)
-
-/* A CLEANUP_STMT marks the point at which a declaration is fully
- constructed. If, after this point, the CLEANUP_DECL goes out of
- scope, the CLEANUP_EXPR must be run. */
-DEFTREECODE (CLEANUP_STMT, "cleanup_stmt", 'e', 2)
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+/* Tree nodes used in the C frontend. These are also shared with the
+ C++ and Objective C frontends. */
+
+/* A C_MAYBE_CONST_EXPR, currently only used for C and Objective C,
+ tracks information about constancy of an expression and VLA type
+ sizes or VM expressions from typeof that need to be evaluated
+ before the main expression. It is used during parsing and removed
+ in c_fully_fold. C_MAYBE_CONST_EXPR_PRE is the expression to
+ evaluate first, if not NULL; C_MAYBE_CONST_EXPR_EXPR is the main
+ expression. If C_MAYBE_CONST_EXPR_INT_OPERANDS is set then the
+ expression may be used in an unevaluated part of an integer
+ constant expression, but not in an evaluated part. If
+ C_MAYBE_CONST_EXPR_NON_CONST is set then the expression contains
+ something that cannot occur in an evaluated part of a constant
+ expression (or outside of sizeof in C90 mode); otherwise it does
+ not. */
+DEFTREECODE (C_MAYBE_CONST_EXPR, "c_maybe_const_expr", tcc_expression, 2)
+
+/* An EXCESS_PRECISION_EXPR, currently only used for C and Objective
+ C, represents an expression evaluated in greater range or precision
+ than its type. The type of the EXCESS_PRECISION_EXPR is the
+ semantic type while the operand represents what is actually being
+ evaluated. */
+DEFTREECODE (EXCESS_PRECISION_EXPR, "excess_precision_expr", tcc_expression, 1)
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