[Bug c++/21619] [4.0 regression] __builtin_constant_p(&"Hello"[0])?1:-1 not compile-time constant

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-05 17:30 -------
Mark this is fixed on the 4.0 branch, the middle-end part was PR 21595 and was commited to 4.0 
branch:
2005-05-27  Richard Guenther  <rguenth@gcc.gnu.org>

        PR middle-end/21595
        * builtins.c (fold_builtin_constant_p): Handle
        &"string cst"[0] as constant.

And the testcase here works now.

Were you using an old branch to test on?

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                 CC|                            |mmitchel at gcc dot gnu dot
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21619