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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/47477] [4.6/4.7/4.8 regression] Sub-optimal mov at end of method
Date: Mon, 02 Jan 2012 11:36:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47477

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org
                   |gnu.org                     |
   Target Milestone|4.7.0                       |4.8.0
            Summary|[4.6/4.7 regression]        |[4.6/4.7/4.8 regression]
                   |Sub-optimal mov at end of   |Sub-optimal mov at end of
                   |method                      |method

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-02 11:36:32 UTC ---
Postponing for 4.8, as agreed by Richard this is stage1 material and
unfortunately has been forgotten during 4.7 stage1.  From quick glance at it,
we want to reimplement get_unwidened and the narrowing integer conversion part
of convert_to_integer on GIMPLE, must likely in forwprop.