[Bug c++/58664] [c++11] ICE initializing array of incomplete type within union

["paolo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58664

--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Tue May 20 13:30:40 2014
New Revision: 210642

URL: http://gcc.gnu.org/viewcvs?rev=210642&root=gcc&view=rev
Log:
/cp
2014-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/58664
    * typeck2.c (cxx_incomplete_type_inform): New.
    (cxx_incomplete_type_diagnostic): Use it.
    * decl.c (grokdeclarator): Check the element type of an
    incomplete array type; call the above.
    * cp-tree.h (cxx_incomplete_type_inform): Declare.

/testsuite
2014-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/58664
    * g++.dg/cpp0x/nsdmi-union6.C: New.
    * g++.dg/parse/pr58664.C: Likewise.
    * g++.dg/cpp0x/nsdmi6.C: Tweak.
    * g++.dg/parse/crash31.C: Likewise.
    * g++.dg/template/error2.C: Likewise.
    * g++.dg/template/inherit8.C: Likewise.
    * g++.dg/template/offsetof2.C: Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/nsdmi-union6.C
    trunk/gcc/testsuite/g++.dg/parse/pr58664.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/cpp0x/nsdmi6.C
    trunk/gcc/testsuite/g++.dg/parse/crash31.C
    trunk/gcc/testsuite/g++.dg/template/error2.C
    trunk/gcc/testsuite/g++.dg/template/inherit8.C
    trunk/gcc/testsuite/g++.dg/template/offsetof2.C