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re PR c++/71516 (ICE on invalid C++ code (invalid use of forward declared type) on x86_64-linux-gnu: Segmentation fault (program cc1plus))

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PR c++/71516
	* decl.c (complete_vars): Handle gracefully type == error_mark_node.

	* g++.dg/init/pr71516.C: New test.

From-SVN: r237445
This commit is contained in:
Jakub Jelinek 2016-06-14 16:33:11 +02:00 committed by Jakub Jelinek
parent acfadf066d
commit abe7f8287e
4 changed files with 23 additions and 2 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
2016-06-14 Jakub Jelinek <jakub@redhat.com>
PR c++/71516
* decl.c (complete_vars): Handle gracefully type == error_mark_node.
2016-06-14 Paolo Carlini <paolo.carlini@oracle.com>
* typeck2.c (digest_init_r): Use EXPR_LOC_OR_LOC on init.

5
gcc/cp/decl.c
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@ -15029,8 +15029,9 @@ complete_vars (tree type)
tree var = iv->decl;
tree type = TREE_TYPE (var);
if (TYPE_MAIN_VARIANT (strip_array_types (type))
== iv->incomplete_type)
if (type != error_mark_node
&& (TYPE_MAIN_VARIANT (strip_array_types (type))
== iv->incomplete_type))
{
/* Complete the type of the variable. The VAR_DECL itself
will be laid out in expand_expr. */

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-06-14 Jakub Jelinek <jakub@redhat.com>
PR c++/71516
* g++.dg/init/pr71516.C: New test.
2016-06-14 Paolo Carlini <paolo.carlini@oracle.com>
* g++.dg/init/array46.C: New.

10
gcc/testsuite/g++.dg/init/pr71516.C Normal file
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@ -0,0 +1,10 @@
// PR c++/71516
// { dg-do compile }
struct A; // { dg-message "forward declaration of" }
struct B
{
static A a;
};
A B::a = A(); // { dg-error "has initializer but incomplete type|invalid use of incomplete type" }
struct A {};