Mainline ICE in verify_local_live_at_start

[Martin v. Loewis]

The mainline compiler (20000502), when configured with
--enable-libstdcxx-v3, on i586-pc-linux-gnu, gives, for the attached
file, when compiled with -O2, the message

a.ii: In method `_CharT *std::basic_string<_CharT, _Traits,
a.ii: _Alloc>::_Rep::_M_clone (const _Alloc &, typename
a.ii: _Alloc::size_type) [with _CharT = char, _Traits =
a.ii: std::char_traits<char>, _Alloc = std::allocator<char>]':
a.ii:5153:   instantiated from here
a.ii:9766: Internal compiler error in `verify_local_live_at_start', at
a.ii:9766: flow.c:2634
a.ii:9766: Please submit a full bug report.
a.ii:9766: See <URL: http://www.gnu.org/software/gcc/bugs.html > for
a.ii:9766: instructions.

This file is actually the preprocessor output of locale-inst.cc.

Regards,
Martin

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