tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.

	* tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
	treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.

From-SVN: r120677

gcc/ChangeLog

+2007-01-11  Roger Sayle  <roger@eyesopen.com>
+
+	* tree.h (TREE_CONSTANT_OVERFLOW): Obsolete.  For the time being,
+	treat TREE_CONSTANT_OVERFLOW as a synonym of TREE_OVERFLOW.
+
 2007-01-11  Paolo Bonzini  <bonzini@gnu.org>
 
 	* configure.ac (strict1_warn): Rename to strict_warn.

gcc/tree.h

@@ -426,8 +426,6 @@ struct gimple_stmt GTY(())
            VAR_DECL, FUNCTION_DECL, CONSTRUCTOR, ADDR_EXPR
        BINFO_VIRTUAL_P in
            TREE_BINFO
-       TREE_CONSTANT_OVERFLOW in
-           INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST
        TREE_SYMBOL_REFERENCED in
            IDENTIFIER_NODE
        CLEANUP_EH_ONLY in
@@ -1133,12 +1131,6 @@ extern void omp_clause_range_check_failed (const tree, const char *, int,
    emitted.  */
 #define TREE_NO_WARNING(NODE) ((NODE)->base.nowarning_flag)
 
-/* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST this means
-   there was an overflow in folding.  This is distinct from
-   TREE_OVERFLOW because ANSI C requires a diagnostic when overflows
-   occur in constant expressions.  */
-#define TREE_CONSTANT_OVERFLOW(NODE) (CST_CHECK (NODE)->base.static_flag)
-
 /* In an IDENTIFIER_NODE, this means that assemble_name was called with
    this string as an argument.  */
 #define TREE_SYMBOL_REFERENCED(NODE) \
@@ -1150,12 +1142,13 @@ extern void omp_clause_range_check_failed (const tree, const char *, int,
   (PTR_OR_REF_CHECK (NODE)->base.static_flag)
 
 /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST, this means
-   there was an overflow in folding, and no warning has been issued
-   for this subexpression.  TREE_OVERFLOW implies TREE_CONSTANT_OVERFLOW,
-   but not vice versa.  */
+   there was an overflow in folding.  */
 
 #define TREE_OVERFLOW(NODE) (CST_CHECK (NODE)->base.public_flag)
 
+/* ??? This is an obsolete synonym for TREE_OVERFLOW.  */
+#define TREE_CONSTANT_OVERFLOW(NODE) TREE_OVERFLOW(NODE)
+
 /* TREE_OVERFLOW can only be true for EXPR of CONSTANT_CLASS_P.  */
 
 #define TREE_OVERFLOW_P(EXPR) \