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* [Bug rtl-optimization/39349]  New: cse_insn has out-of-bounds array access
@ 2009-03-02 17:31 amylaar at gcc dot gnu dot org
  2009-03-02 17:39 ` [Bug rtl-optimization/39349] " pinskia at gcc dot gnu dot org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: amylaar at gcc dot gnu dot org @ 2009-03-02 17:31 UTC (permalink / raw)
  To: gcc-bugs

The loop in cse_insn below the comment:
/* See if we have a CONST_INT that is already in a
   wider mode.  */
fails to terminate when VOIDmode is reached.


-- 
           Summary: cse_insn has out-of-bounds array access
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: amylaar at gcc dot gnu dot org
 BugsThisDependsOn: 39302
OtherBugsDependingO 39346
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39349


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug rtl-optimization/39349] cse_insn has out-of-bounds array access
  2009-03-02 17:31 [Bug rtl-optimization/39349] New: cse_insn has out-of-bounds array access amylaar at gcc dot gnu dot org
@ 2009-03-02 17:39 ` pinskia at gcc dot gnu dot org
  2009-03-02 18:30 ` amylaar at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2009-03-02 17:39 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #1 from pinskia at gcc dot gnu dot org  2009-03-02 17:39 -------
I think this is by defined, you need to include one mode bigger than the
register size.  This is done for spu the same way.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39349


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug rtl-optimization/39349] cse_insn has out-of-bounds array access
  2009-03-02 17:31 [Bug rtl-optimization/39349] New: cse_insn has out-of-bounds array access amylaar at gcc dot gnu dot org
  2009-03-02 17:39 ` [Bug rtl-optimization/39349] " pinskia at gcc dot gnu dot org
@ 2009-03-02 18:30 ` amylaar at gcc dot gnu dot org
  2009-03-02 19:00 ` hjl dot tools at gmail dot com
  2009-03-05  1:27 ` amylaar at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: amylaar at gcc dot gnu dot org @ 2009-03-02 18:30 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #2 from amylaar at gcc dot gnu dot org  2009-03-02 18:29 -------
(In reply to comment #1)
> I think this is by defined, you need to include one mode bigger than the
> register size.  This is done for spu the same way.

Where does it say that a port for a target with 128 bit registers
and 8*16 bit ALU width has to support 256 bit integers?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39349


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug rtl-optimization/39349] cse_insn has out-of-bounds array access
  2009-03-02 17:31 [Bug rtl-optimization/39349] New: cse_insn has out-of-bounds array access amylaar at gcc dot gnu dot org
  2009-03-02 17:39 ` [Bug rtl-optimization/39349] " pinskia at gcc dot gnu dot org
  2009-03-02 18:30 ` amylaar at gcc dot gnu dot org
@ 2009-03-02 19:00 ` hjl dot tools at gmail dot com
  2009-03-05  1:27 ` amylaar at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: hjl dot tools at gmail dot com @ 2009-03-02 19:00 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #3 from hjl dot tools at gmail dot com  2009-03-02 19:00 -------
FWIW, I defined OImode (512bit) for AVX. It isn't strictly needed
by x86 backend. But I had to define it.  Otherwise, middle-end isn't
happy.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl dot tools at gmail dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39349


^ permalink raw reply	[flat|nested] 5+ messages in thread
* [Bug rtl-optimization/39349] cse_insn has out-of-bounds array access
  2009-03-02 17:31 [Bug rtl-optimization/39349] New: cse_insn has out-of-bounds array access amylaar at gcc dot gnu dot org
                   ` (2 preceding siblings ...)
  2009-03-02 19:00 ` hjl dot tools at gmail dot com
@ 2009-03-05  1:27 ` amylaar at gcc dot gnu dot org
  3 siblings, 0 replies; 5+ messages in thread
From: amylaar at gcc dot gnu dot org @ 2009-03-05  1:27 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #4 from amylaar at gcc dot gnu dot org  2009-03-05 01:27 -------
http://gcc.gnu.org/ml/gcc-patches/2009-03/msg00262.html


-- 

amylaar at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  BugsThisDependsOn|39302                       |
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39349


^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2009-03-05  1:27 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-03-02 17:31 [Bug rtl-optimization/39349] New: cse_insn has out-of-bounds array access amylaar at gcc dot gnu dot org
2009-03-02 17:39 ` [Bug rtl-optimization/39349] " pinskia at gcc dot gnu dot org
2009-03-02 18:30 ` amylaar at gcc dot gnu dot org
2009-03-02 19:00 ` hjl dot tools at gmail dot com
2009-03-05  1:27 ` amylaar at gcc dot gnu dot org

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