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[C++ Patch] PR 33462
- From: Paolo Carlini <pcarlini at suse dot de>
- To: gcc-patches at gcc dot gnu dot org
- Cc: gdr at cs dot tamu dot edu
- Date: Tue, 18 Sep 2007 18:18:55 +0200
- Subject: [C++ Patch] PR 33462
Hi again,
usual story ;) Tested x86_64-linux, Ok for mainline?
Paolo.
///////////////
/cp
2007-09-18 Paolo Carlini <pcarlini@suse.de>
PR c++/33462
* cxx-pretty-print.c (pp_cxx_va_arg_expression): Add.
(pp_cxx_primary_expression): Use it.
* cxx-pretty-print.h (pp_cxx_va_arg_expression): Declare.
* error.c (dump_expr): Use it.
/testsuite
2007-09-18 Paolo Carlini <pcarlini@suse.de>
PR c++/33462
* g++.dg/ext/va-arg1.C: New.
Index: testsuite/g++.dg/ext/va-arg1.C
===================================================================
*** testsuite/g++.dg/ext/va-arg1.C (revision 0)
--- testsuite/g++.dg/ext/va-arg1.C (revision 0)
***************
*** 0 ****
--- 1,8 ----
+ // PR c++/33462
+
+ struct A {};
+
+ void foo()
+ {
+ ++__builtin_va_arg(0, A); // { dg-error "'\\+\\+__builtin_va_arg\\(0, A\\)'" }
+ }
Index: cp/error.c
===================================================================
*** cp/error.c (revision 128582)
--- cp/error.c (working copy)
*************** dump_expr (tree t, int flags)
*** 2062,2067 ****
--- 2062,2071 ----
pp_cxx_typeid_expression (cxx_pp, t);
break;
+ case VA_ARG_EXPR:
+ pp_cxx_va_arg_expression (cxx_pp, t);
+ break;
+
/* This list is incomplete, but should suffice for now.
It is very important that `sorry' does not call
`report_error_function'. That could cause an infinite loop. */
Index: cp/cxx-pretty-print.c
===================================================================
*** cp/cxx-pretty-print.c (revision 128582)
--- cp/cxx-pretty-print.c (working copy)
*************** pp_cxx_id_expression (cxx_pretty_printer
*** 351,356 ****
--- 351,358 ----
id-expression
GNU Extensions:
+ __builtin_va_arg ( assignment-expression , type-id )
+
__has_nothrow_assign ( type-id )
__has_nothrow_constructor ( type-id )
__has_nothrow_copy ( type-id )
*************** pp_cxx_primary_expression (cxx_pretty_pr
*** 410,415 ****
--- 412,421 ----
pp_cxx_trait_expression (pp, t);
break;
+ case VA_ARG_EXPR:
+ pp_cxx_va_arg_expression (pp, t);
+ break;
+
default:
pp_c_primary_expression (pp_c_base (pp), t);
break;
*************** pp_cxx_typeid_expression (cxx_pretty_pri
*** 2153,2158 ****
--- 2159,2175 ----
}
void
+ pp_cxx_va_arg_expression (cxx_pretty_printer *pp, tree t)
+ {
+ pp_cxx_identifier (pp, "__builtin_va_arg");
+ pp_cxx_left_paren (pp);
+ pp_cxx_assignment_expression (pp, TREE_OPERAND (t, 0));
+ pp_cxx_separate_with (pp, ',');
+ pp_cxx_type_id (pp, TREE_TYPE (t));
+ pp_cxx_right_paren (pp);
+ }
+
+ void
pp_cxx_trait_expression (cxx_pretty_printer *pp, tree t)
{
cp_trait_kind kind = TRAIT_EXPR_KIND (t);
Index: cp/cxx-pretty-print.h
===================================================================
*** cp/cxx-pretty-print.h (revision 128582)
--- cp/cxx-pretty-print.h (working copy)
*************** void pp_cxx_declaration (cxx_pretty_prin
*** 71,75 ****
--- 71,76 ----
void pp_cxx_canonical_template_parameter (cxx_pretty_printer *, tree);
void pp_cxx_trait_expression (cxx_pretty_printer *, tree);
void pp_cxx_typeid_expression (cxx_pretty_printer *, tree);
+ void pp_cxx_va_arg_expression (cxx_pretty_printer *, tree);
#endif /* GCC_CXX_PRETTY_PRINT_H */