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* [Bug rtl-optimization/28108]  New: Some cse optimizations require hash collisions
@ 2006-06-20 19:43 amylaar at gcc dot gnu dot org
  2006-06-20 20:04 ` [Bug rtl-optimization/28108] " steven at gcc dot gnu dot org
  0 siblings, 1 reply; 2+ messages in thread
From: amylaar at gcc dot gnu dot org @ 2006-06-20 19:43 UTC (permalink / raw)
  To: gcc-bugs

cse.c:hash_rtx has the same problem as found before in cse.c:cselib_hash_rtx
(PR rtl-optimization/22445).  Hence, some optimiztions will only be done
if there is a convenient hash collision.

I.e. the MODE should not be used to calculate the hash value.


-- 
           Summary: Some cse optimizations require hash collisions
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: amylaar at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28108


^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug rtl-optimization/28108] Some cse optimizations require hash collisions
  2006-06-20 19:43 [Bug rtl-optimization/28108] New: Some cse optimizations require hash collisions amylaar at gcc dot gnu dot org
@ 2006-06-20 20:04 ` steven at gcc dot gnu dot org
  0 siblings, 0 replies; 2+ messages in thread
From: steven at gcc dot gnu dot org @ 2006-06-20 20:04 UTC (permalink / raw)
  To: gcc-bugs



-- 

steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-06-20 20:02:53
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28108


^ permalink raw reply	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2006-06-20 20:03 UTC | newest]

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2006-06-20 19:43 [Bug rtl-optimization/28108] New: Some cse optimizations require hash collisions amylaar at gcc dot gnu dot org
2006-06-20 20:04 ` [Bug rtl-optimization/28108] " steven at gcc dot gnu dot org

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