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PR c++/80241 - ICE with alignas pack expansion. 

* error.c (dump_expr): Handle TREE_LIST.
	* parser.c (cp_parser_std_attribute_list): Return error_mark if
	make_pack_expansion returns an error.

	* g++.dg/cpp0x/alignas11.C: New test.

From-SVN: r246963
This commit is contained in:
Marek Polacek 2017-04-18 09:38:55 +00:00 committed by Marek Polacek
parent be7c73ae35
commit d6e3e8a54c
5 changed files with 28 additions and 2 deletions
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5
gcc/cp/ChangeLog
View File

@ -3,6 +3,11 @@
PR c++/80244 - ICE with attribute in template alias.
* tree.c (strip_typedefs): Handle UNDERLYING_TYPE.
PR c++/80241 - ICE with alignas pack expansion.
* error.c (dump_expr): Handle TREE_LIST.
* parser.c (cp_parser_std_attribute_list): Return error_mark if
make_pack_expansion returns an error.
2017-04-17 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/80287

4
gcc/cp/error.c
View File

@ -2822,6 +2822,10 @@ dump_expr (cxx_pretty_printer *pp, tree t, int flags)
pp_string (pp, M_("*this"));
break;
case TREE_LIST:
dump_expr_list (pp, t, flags);
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. */

8
gcc/cp/parser.c
View File

@ -24846,8 +24846,12 @@ cp_parser_std_attribute_list (cp_parser *parser, tree attr_ns)
error_at (token->location,
"expected attribute before %<...%>");
else
TREE_VALUE (attribute)
= make_pack_expansion (TREE_VALUE (attribute));
{
tree pack = make_pack_expansion (TREE_VALUE (attribute));
if (pack == error_mark_node)
return error_mark_node;
TREE_VALUE (attribute) = pack;
}
token = cp_lexer_peek_token (parser->lexer);
}
if (token->type != CPP_COMMA)

3
gcc/testsuite/ChangeLog
View File

@ -3,6 +3,9 @@
PR c++/80244 - ICE with attribute in template alias.
* g++.dg/cpp0x/alias-decl-59.C: New test.
PR c++/80241 - ICE with alignas pack expansion.
* g++.dg/cpp0x/alignas11.C: New test.
2017-04-17 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR c++/80287

10
gcc/testsuite/g++.dg/cpp0x/alignas11.C Normal file
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@ -0,0 +1,10 @@
// PR c++/80241
// { dg-do compile { target c++11 } }
template <typename... T>
struct A
{
[[gnu::aligned (alignof(A))...]] char c; // { dg-error "expansion pattern" }
};
A<int> a;