[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-11-27 Thread rakdver at gcc dot gnu dot org 

--- Additional Comments From rakdver at gcc dot gnu dot org  2004-11-27 
20:32 ---
The code in find_base_value very likely is not entirely OK, but I do not know 
about a way how it could cause problems with just the currently used 
optimizations.  Since this code will disappear once we start using results of 
tree alias analysis at rtl level, I think we can consider the bug fixed.

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   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution||FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679

[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-11-27 Thread giovannibajo at libero dot it 

--- Additional Comments From giovannibajo at libero dot it  2004-11-27 
20:09 ---
Zdenek, can you check if this bug still makes sense or close it if it does not 
reproduce anymore? You are the one that knows if there is still an underlying 
problem to fix or not.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679

[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-11-26 Thread pinskia at gcc dot gnu dot org 

--- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-27 
00:04 ---
Then should we close this bug as fixed or at least move it from being a 4.0 
regression?

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679

[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-10-17 Thread rakdver at atrey dot karlin dot mff dot cuni dot cz 

--- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni dot cz  
2004-10-18 06:46 ---
Subject: Re:  [4.0 Regression] Aliasing problem with ivopts

> Zdenek are you going to apply the patch, it has been approved?

the patch was approved, but after thinking about it more, I noted that
it works by pure luck only, and that the fix for find_base_value
would need to be more complicated.

However in the meantime the patch to prevent ivopts from producing the
type of expressions that caused the problem was commited, so the PR
should no longer reproduce.

Zdenek


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679

[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-10-17 Thread pinskia at gcc dot gnu dot org 

--- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-18 03:55 
---
Zdenek are you going to apply the patch, it has been approved?

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679

[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-09-28 Thread pinskia at gcc dot gnu dot org 

--- Additional Comments From pinskia at gcc dot gnu dot org  2004-09-28 11:37 
---
Confirmed.

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   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever Confirmed||1
   Last reconfirmed|-00-00 00:00:00 |2004-09-28 11:37:15
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679

[Bug tree-optimization/17679] [4.0 Regression] Aliasing problem with ivopts

2004-09-28 Thread rakdver at gcc dot gnu dot org 

--- Additional Comments From rakdver at gcc dot gnu dot org  2004-09-28 09:34 
---
Patch:

http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02849.html

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   What|Removed |Added

   Keywords||patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17679