re PR c++/7129 (ICE with min/max assignment operators (<?= and >?=))

	PR c++/7129
	* call.c (z_candidate): Add args.
	(convert_class_to_reference): Set it.
	(implicit_conversion): Tidy.
	(add_candidate): Add args parameter.
	(add_function_candidate): Adjust call to add_candidate.
	(add_conv_candidate): Likewise.
	(build_builtin_candidate): Likewise.
	(build_user_type_conversion_1): Eliminate wasteful tree_cons
	usage.
	(build_new_function_call): Likewise.
	(build_object_call): Likewise.
	(add_candidates): New function.
	(build_new_op): Use it.
	(covert_like_real): Adjust call to build_over_call.
	(build_over_call): Remove args parameter.
	* operators.def: Add <?= and >?=.

	PR c++/7129
	* testsuite/g++.dg/ext/max.C: New test.

From-SVN: r62370

gcc/cp/ChangeLog

+2003-02-03  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/7129
+	* call.c (z_candidate): Add args.
+	(convert_class_to_reference): Set it.
+	(implicit_conversion): Tidy.
+	(add_candidate): Add args parameter.
+	(add_function_candidate): Adjust call to add_candidate.
+	(add_conv_candidate): Likewise.
+	(build_builtin_candidate): Likewise.
+	(build_user_type_conversion_1): Eliminate wasteful tree_cons
+	usage.
+	(build_new_function_call): Likewise.
+	(build_object_call): Likewise.
+	(add_candidates): New function.
+	(build_new_op): Use it.
+	(covert_like_real): Adjust call to build_over_call.
+	(build_over_call): Remove args parameter.
+	* operators.def: Add <?= and >?=.
+
 2003-02-01  Richard Sandiford  <rsandifo@redhat.com>
 
 	* typeck.c (build_indirect_ref): Don't check flag_volatile.

gcc/cp/operators.def

@@ -5,7 +5,7 @@
    non-overloadable operators (like the `?:' ternary operator).  
    Written by Mark Mitchell <mark@codesourcery.com>
 
-   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -40,7 +40,7 @@ Boston, MA 02111-1307, USA.  */
      assignment operators, the same tree-codes are reused; i.e.,
      `operator +' will also have PLUS_EXPR as its CODE.
 
-   NEW_MANGLING
+   MANGLING
 
      The mangling prefix for the operator, as a C string, and as
      mangled under the new ABI.  For `operator +', for example, this
@@ -127,7 +127,7 @@ 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)
-/* These are extensions.  */
+/* These operators are GNU extensions.  */
 DEF_SIMPLE_OPERATOR ("<?", MIN_EXPR, "v23min", 2)
 DEF_SIMPLE_OPERATOR (">?", MAX_EXPR, "v23max", 2)
 /* This one is needed for mangling.  */
@@ -145,6 +145,9 @@ 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)
+/* These operators are GNU extensions.  */
+DEF_ASSN_OPERATOR ("<?=", MIN_EXPR, "v23miN", 2);
+DEF_ASSN_OPERATOR (">?=", MAX_EXPR, "v23maX", 2);
 
 /* Ternary operators.  */
 DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", 3)

gcc/testsuite/ChangeLog

+2003-02-03  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/7129
+	* testsuite/g++.dg/ext/max.C: New test.
+
 Mon Feb  3 16:05:11 CET 2003  Jan Hubicka  <jh@suse.cz>
 
 	* gcc.c-torture/execute/20030203-1.c: New test.

gcc/testsuite/g++.dg/ext/max.C

+struct s_t { 
+};
+void foo(void) {
+  s_t s; int i;
+  s<?=i; // { dg-error "" }
+}