[Bug libstdc++/49022] [C++0x][DR 2058] std::begin and std::end specialized for std::valarray with some operators are missing.

["daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49022

--- Comment #28 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
(In reply to Paolo Carlini from comment #27)
Yes.
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Subject: [Bug target/29776] result of ffs/clz/ctz/popcount/parity are already sign-extended
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id)776

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #30453|0                           |1
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 30454
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id0454&actioníit
gcc49-pr29776.patch

It wasn't actually that hard to improve the VRs in some cases.