[Bug c++/54648] constexpr function rejected as non const

[leonid at volnitsky dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54648

--- Comment #2 from Leonid Volnitsky <leonid at volnitsky dot com> 2012-09-26 13:16:16 UTC ---
Found bad commit. 

Quick recap:  GCC says that expression  sizeof(....)==1  is not constexpr.

Commit is about template aliases and they are used in expression.

Bad commit (as reported by git):

6423a93273627b3d1ff3a799d23baa7eae6e6cc9 is the first bad commit
commit 6423a93273627b3d1ff3a799d23baa7eae6e6cc9
Author: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Tue Sep 18 03:47:35 2012 +0000

        PR c++/54575
        * pt.c (instantiate_alias_template): New.
        (tsubst): Use it.
        (push_access_scope): Allow TYPE_DECL.

    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@191412
138bc75d-0d04-0410-961f-82ee72b054a4

:040000 040000 51d12d90281f31fa13167d674af17c710145c900
0f9f175917aa843c713a0415f542801bc391f0e0 M      gcc