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* [Bug middle-end/42688] gcc 4.3.3 with -O2 thinks a often non-zero expression is always zero
       [not found] <bug-42688-4@http.gcc.gnu.org/bugzilla/>
@ 2012-01-19  2:34 ` pinskia at gcc dot gnu.org
  0 siblings, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-01-19  2:34 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42688

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-19 02:20:20 UTC ---
No testcase provided in almost 2 years so closing as invalid.


^ permalink raw reply	[flat|nested] 3+ messages in thread
* [Bug middle-end/42688] gcc 4.3.3 with -O2 thinks a often non-zero expression is always zero
  2010-01-11 14:11 [Bug c/42688] New: " mnemo at minimum dot se
  2010-02-07 20:05 ` [Bug middle-end/42688] " pinskia at gcc dot gnu dot org
@ 2010-02-07 21:34 ` mnemo at minimum dot se
  1 sibling, 0 replies; 3+ messages in thread
From: mnemo at minimum dot se @ 2010-02-07 21:34 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #5 from mnemo at minimum dot se  2010-02-07 21:34 -------
The gzipped output is also too big for this bugzilla instance to handle. It
should be easy for you to download the *.tar.gz from the description and just
run "gcc -E -O2" on it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42688


^ permalink raw reply	[flat|nested] 3+ messages in thread
* [Bug middle-end/42688] gcc 4.3.3 with -O2 thinks a often non-zero expression is always zero
  2010-01-11 14:11 [Bug c/42688] New: " mnemo at minimum dot se
@ 2010-02-07 20:05 ` pinskia at gcc dot gnu dot org
  2010-02-07 21:34 ` mnemo at minimum dot se
  1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-02-07 20:05 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #4 from pinskia at gcc dot gnu dot org  2010-02-07 20:04 -------
You can gzip the preprocessed source if needed.  Also It might be the case we
are jump threading in one case and not in the other which causes the zero
expression to show up and that causes glibc's headers to produce the warning
...


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42688


^ permalink raw reply	[flat|nested] 3+ messages in thread
end of thread, other threads:[~2012-01-19  2:20 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-42688-4@http.gcc.gnu.org/bugzilla/>
2012-01-19  2:34 ` [Bug middle-end/42688] gcc 4.3.3 with -O2 thinks a often non-zero expression is always zero pinskia at gcc dot gnu.org
2010-01-11 14:11 [Bug c/42688] New: " mnemo at minimum dot se
2010-02-07 20:05 ` [Bug middle-end/42688] " pinskia at gcc dot gnu dot org
2010-02-07 21:34 ` mnemo at minimum dot se

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