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[Bug c/58943] [4.7/4.8/4.9 Regression] wrong calculation of indirect structure member arithmetic via function call
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 03 Dec 2013 15:02:46 +0000
- Subject: [Bug c/58943] [4.7/4.8/4.9 Regression] wrong calculation of indirect structure member arithmetic via function call
- Auto-submitted: auto-generated
- References: <bug-58943-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58943
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org,
| |jsm28 at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
If anything, this would be a C FE request for a change like PR45437 that made
into the C++ FE. The question is if we want to do this only for flag_isoc11,
or also older. Handling it during gimplification or later is impossible,
because
the difference between x[0] |= x[0] | f (); and x[0] = x[0] | f (); is already
lost there.