[Bug middle-end/56526] [4.8 regression] false positive for maybe-uninitialized

2013-03-05 Thread rguenth at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56526



Richard Biener rguenth at gcc dot gnu.org changed:



   What|Removed |Added



   Keywords||diagnostic

   Target Milestone|--- |4.8.0

[Bug middle-end/56526] [4.8 regression] false positive for maybe-uninitialized

2013-03-05 Thread jakub at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56526



--- Comment #2 from Jakub Jelinek jakub at gcc dot gnu.org 2013-03-05 
15:16:59 UTC ---

Author: jakub

Date: Tue Mar  5 15:16:49 2013

New Revision: 196466



URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=196466

Log:

PR middle-end/56526

* simple-object-mach-o.c (simple_object_mach_o_segment): Initialize

wrapper_sect_offset to avoid a warning.



Modified:

trunk/libiberty/ChangeLog

trunk/libiberty/simple-object-mach-o.c

[Bug middle-end/56526] [4.8 regression] false positive for maybe-uninitialized

2013-03-05 Thread jakub at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56526



Jakub Jelinek jakub at gcc dot gnu.org changed:



   What|Removed |Added



 Status|UNCONFIRMED |RESOLVED

 CC||jakub at gcc dot gnu.org

 Resolution||FIXED



--- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org 2013-03-05 
15:22:39 UTC ---

Should be fixed hopefully.

[Bug middle-end/56526] [4.8 regression] false positive for maybe-uninitialized

2013-03-05 Thread matt at use dot net 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56526



--- Comment #4 from Matt Hargett matt at use dot net 2013-03-06 02:06:03 UTC 
---

It does fix that warning, but there's a bug in the analysis that makes it a

false positive. I've had difficulty reducing it to a self-contained example,

and I don't have the expertise to do more in-depth debugging.



This should stay open until the analysis is done to show that it's an accepted

limitation of the warning's capabilities, IMO.

[Bug middle-end/56526] [4.8 regression] false positive for maybe-uninitialized

2013-03-05 Thread jakub at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56526



--- Comment #5 from Jakub Jelinek jakub at gcc dot gnu.org 2013-03-06 
07:03:23 UTC ---

Maybe-uninitialized warnings have tons of known false positives, while the

predicated analysis can handle the simplest cases, it can't handle anything

more complicated.  As this isn't a usable testcase, requires LTO to reproduce,

I don't think it is worth keeping it open.

[Bug middle-end/56526] [4.8 regression] false positive for maybe-uninitialized

2013-03-04 Thread matt at use dot net 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56526



--- Comment #1 from Matt Hargett matt at use dot net 2013-03-04 19:04:58 UTC 
---

Created attachment 29580

  -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=29580

save-temps output from same commandline/path