--- a/gcc/cp/operators.def	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/cp/operators.def	Thu Oct 25 07:37:49 2018 +0900
@@ -5,7 +5,7 @@
    non-overloadable operators (like the `?:' ternary operator).
    Written by Mark Mitchell <mark@codesourcery.com>
 
-   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   Copyright (C) 2000-2018 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -45,116 +45,114 @@
      mangled under the new ABI.  For `operator +', for example, this
      would be "pl".
 
-   ARITY
+   FLAGS
 
-     The arity of the operator, or -1 if any arity is allowed.  (As
-     for `operator ()'.)  Postincrement and postdecrement operators
-     are marked as binary.
-
-   ASSN_P
-
-     A boolean value.  If nonzero, this is an assignment operator.
+     ovl_op_flags bits.  Postincrement and postdecrement operators are
+     marked as binary.
 
    Before including this file, you should define DEF_OPERATOR
    to take these arguments.
 
    There is code (such as in grok_op_properties) that depends on the
-   order the operators are presented in this file.  In particular,
-   unary operators must precede binary operators.  */
-
-/* Use DEF_SIMPLE_OPERATOR to define a non-assignment operator.  Its
-   arguments are as for DEF_OPERATOR, but there is no need to provide
-   an ASSIGNMENT_P argument; it is always zero.  */
-
-#define DEF_SIMPLE_OPERATOR(NAME, CODE, MANGLING, ARITY) \
-  DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, cik_simple_op)
+   order the operators are presented in this file.  Unary_ops must
+   preceed a matching binary op (i.e. '+').  Assignment operators must
+   be last, after OPERATOR_TRANSITION.  */
 
 /* Use DEF_ASSN_OPERATOR to define an assignment operator.  Its
    arguments are as for DEF_OPERATOR, but there is no need to provide
-   an ASSIGNMENT_P argument; it is always one.  */
+   FLAGS (OVL_OP_FLAG_BINARY).  */
 
-#define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING, ARITY) \
-  DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, cik_assign_op)
+#ifndef DEF_ASSN_OPERATOR
+#define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) \
+  DEF_OPERATOR(NAME, CODE, MANGLING, OVL_OP_FLAG_BINARY)
+#endif
 
-/* Memory allocation operators.  */
-DEF_OPERATOR ("new", NEW_EXPR, "nw", -1, cik_newdel_op)
-DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na", -1, cik_newdel_op)
-DEF_OPERATOR ("delete", DELETE_EXPR, "dl", -1, cik_newdel_op)
-DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da", -1, cik_newdel_op)
+/* Memory allocation operators.  ARITY has special meaning. */
+DEF_OPERATOR ("new", NEW_EXPR, "nw", OVL_OP_FLAG_ALLOC)
+DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na",
+	      OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_VEC)
+DEF_OPERATOR ("delete", DELETE_EXPR, "dl",
+	      OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)
+DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da",
+	      OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE | OVL_OP_FLAG_VEC)
 
 /* Unary operators.  */
-DEF_SIMPLE_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", 1)
-DEF_SIMPLE_OPERATOR ("-", NEGATE_EXPR, "ng", 1)
-DEF_SIMPLE_OPERATOR ("&", ADDR_EXPR, "ad", 1)
-DEF_SIMPLE_OPERATOR ("*", INDIRECT_REF, "de", 1)
-DEF_SIMPLE_OPERATOR ("~", BIT_NOT_EXPR, "co", 1)
-DEF_SIMPLE_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", 1)
-DEF_SIMPLE_OPERATOR ("++", PREINCREMENT_EXPR, "pp", 1)
-DEF_SIMPLE_OPERATOR ("--", PREDECREMENT_EXPR, "mm", 1)
-DEF_SIMPLE_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", 1)
+DEF_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("-", NEGATE_EXPR, "ng", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("&", ADDR_EXPR, "ad", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("*", INDIRECT_REF, "de", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("~", BIT_NOT_EXPR, "co", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("++", PREINCREMENT_EXPR, "pp", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("--", PREDECREMENT_EXPR, "mm", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("->", COMPONENT_REF, "pt", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", OVL_OP_FLAG_UNARY)
+
 /* These are extensions.  */
-DEF_SIMPLE_OPERATOR ("alignof", ALIGNOF_EXPR, "az", 1)
-DEF_SIMPLE_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", 1)
-DEF_SIMPLE_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", 1)
-
-/* The cast operators.  */
-DEF_SIMPLE_OPERATOR ("", CAST_EXPR, "cv", 1)
-DEF_SIMPLE_OPERATOR ("dynamic_cast", DYNAMIC_CAST_EXPR, "dc", 1)
-DEF_SIMPLE_OPERATOR ("reinterpret_cast", REINTERPRET_CAST_EXPR, "rc", 1)
-DEF_SIMPLE_OPERATOR ("const_cast", CONST_CAST_EXPR, "cc", 1)
-DEF_SIMPLE_OPERATOR ("static_cast", STATIC_CAST_EXPR, "sc", 1)
+DEF_OPERATOR ("alignof", ALIGNOF_EXPR, "az", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", OVL_OP_FLAG_UNARY)
 
 /* Binary operators.  */
-DEF_SIMPLE_OPERATOR ("+", PLUS_EXPR, "pl", 2)
-DEF_SIMPLE_OPERATOR ("-", MINUS_EXPR, "mi", 2)
-DEF_SIMPLE_OPERATOR ("*", MULT_EXPR, "ml", 2)
-DEF_SIMPLE_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", 2)
-DEF_SIMPLE_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", 2)
-DEF_SIMPLE_OPERATOR ("&", BIT_AND_EXPR, "an", 2)
-DEF_SIMPLE_OPERATOR ("|", BIT_IOR_EXPR, "or", 2)
-DEF_SIMPLE_OPERATOR ("^", BIT_XOR_EXPR, "eo", 2)
-DEF_SIMPLE_OPERATOR ("<<", LSHIFT_EXPR, "ls", 2)
-DEF_SIMPLE_OPERATOR (">>", RSHIFT_EXPR, "rs", 2)
-DEF_SIMPLE_OPERATOR ("==", EQ_EXPR, "eq", 2)
-DEF_SIMPLE_OPERATOR ("!=", NE_EXPR, "ne", 2)
-DEF_SIMPLE_OPERATOR ("<", LT_EXPR, "lt", 2)
-DEF_SIMPLE_OPERATOR (">", GT_EXPR, "gt", 2)
-DEF_SIMPLE_OPERATOR ("<=", LE_EXPR, "le", 2)
-DEF_SIMPLE_OPERATOR (">=", GE_EXPR, "ge", 2)
-DEF_SIMPLE_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", 2)
-DEF_SIMPLE_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", 2)
-DEF_SIMPLE_OPERATOR (",", COMPOUND_EXPR, "cm", 2)
-DEF_SIMPLE_OPERATOR ("->*", MEMBER_REF, "pm", 2)
-DEF_SIMPLE_OPERATOR (".*", DOTSTAR_EXPR, "ds", 2)
-DEF_SIMPLE_OPERATOR ("->", COMPONENT_REF, "pt", 2)
-DEF_SIMPLE_OPERATOR ("[]", ARRAY_REF, "ix", 2)
-DEF_SIMPLE_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", 2)
-DEF_SIMPLE_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", 2)
-/* This one is needed for mangling.  */
-DEF_SIMPLE_OPERATOR ("::", SCOPE_REF, "sr", 2)
+DEF_OPERATOR ("+", PLUS_EXPR, "pl", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("-", MINUS_EXPR, "mi", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("*", MULT_EXPR, "ml", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("&", BIT_AND_EXPR, "an", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("|", BIT_IOR_EXPR, "or", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("^", BIT_XOR_EXPR, "eo", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<<", LSHIFT_EXPR, "ls", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (">>", RSHIFT_EXPR, "rs", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("==", EQ_EXPR, "eq", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("!=", NE_EXPR, "ne", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<", LT_EXPR, "lt", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (">", GT_EXPR, "gt", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<=", LE_EXPR, "le", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (">=", GE_EXPR, "ge", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (",", COMPOUND_EXPR, "cm", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("->*", MEMBER_REF, "pm", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (".*", DOTSTAR_EXPR, "ds", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("[]", ARRAY_REF, "ix", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", OVL_OP_FLAG_BINARY)
+
+/* Miscellaneous.  */
+DEF_OPERATOR ("?:", COND_EXPR, "qu", OVL_OP_FLAG_NONE)
+DEF_OPERATOR ("()", CALL_EXPR, "cl", OVL_OP_FLAG_NONE)
+
+/* Operators needed for mangling.  */
+DEF_OPERATOR (NULL, CAST_EXPR, "cv", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, DYNAMIC_CAST_EXPR, "dc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, REINTERPRET_CAST_EXPR, "rc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, CONST_CAST_EXPR, "cc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, STATIC_CAST_EXPR, "sc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, SCOPE_REF, "sr", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, EXPR_PACK_EXPANSION, "sp", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, UNARY_LEFT_FOLD_EXPR, "fl", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, UNARY_RIGHT_FOLD_EXPR, "fr", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, BINARY_LEFT_FOLD_EXPR, "fL", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, BINARY_RIGHT_FOLD_EXPR, "fR", OVL_OP_FLAG_NONE)
+
+#ifdef OPERATOR_TRANSITION
+OPERATOR_TRANSITION
+#undef OPERATOR_TRANSITION
+#endif
 
 /* Assignment operators.  */
-DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS", 2)
-DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL", 2)
-DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI", 2)
-DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL", 2)
-DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV", 2)
-DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM", 2)
-DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN", 2)
-DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR", 2)
-DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO", 2)
-DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS", 2)
-DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS", 2)
+DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS")
+DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL")
+DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI")
+DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL")
+DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV")
+DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM")
+DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN")
+DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR")
+DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO")
+DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS")
+DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS")
 
-/* Ternary operators.  */
-DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", 3)
-
-/* Miscellaneous.  */
-DEF_SIMPLE_OPERATOR ("()", CALL_EXPR, "cl", -1)
-
-/* Variadic templates extension. */
-DEF_SIMPLE_OPERATOR ("...", EXPR_PACK_EXPANSION, "sp", 1)
-DEF_SIMPLE_OPERATOR ("... +", UNARY_LEFT_FOLD_EXPR, "fl", 2)
-DEF_SIMPLE_OPERATOR ("+ ...", UNARY_RIGHT_FOLD_EXPR, "fr", 2)
-DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_LEFT_FOLD_EXPR, "fL", 3)
-DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_RIGHT_FOLD_EXPR, "fR", 3)
+#undef DEF_ASSN_OPERATOR
+#undef DEF_OPERATOR