[Bug tree-optimization/43949] [4.3/4.4/4.5 Regression] bogus warning: array subscript is above array bounds

2010-05-21 Thread rguenth at gcc dot gnu dot org 


--- Comment #7 from rguenth at gcc dot gnu dot org  2010-05-21 11:17 ---
Subject: Bug 43949

Author: rguenth
Date: Fri May 21 11:16:46 2010
New Revision: 159656

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159656
Log:
2010-05-21  Richard Guenther  

PR tree-optimization/43949
* tree-vrp.c (ssa_name_nonnegative_p): Return true for unsigend
types.
(extract_range_from_binary_expr): Handle TRUNC_MOD_EXPR.

* g++.dg/warn/Warray-bounds-5.C: New testcase.

Added:
branches/gcc-4_5-branch/gcc/testsuite/g++.dg/warn/Warray-bounds-5.C
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
branches/gcc-4_5-branch/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949

[Bug tree-optimization/43949] [4.3/4.4/4.5 Regression] bogus warning: array subscript is above array bounds

2010-05-21 Thread rguenther at suse dot de 


--- Comment #6 from rguenther at suse dot de  2010-05-21 09:15 ---
Subject: Re:  [4.3/4.4/4.5 Regression] bogus
 warning: array subscript is above array bounds

On Fri, 21 May 2010, joachim dot reichel at gmx dot de wrote:

> --- Comment #5 from joachim dot reichel at gmx dot de  2010-05-21 09:12 
> ---
> Will this problem get fixed on the 4.5 branch too?

Yes.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949

[Bug tree-optimization/43949] [4.3/4.4/4.5 Regression] bogus warning: array subscript is above array bounds

2010-05-21 Thread joachim dot reichel at gmx dot de 


--- Comment #5 from joachim dot reichel at gmx dot de  2010-05-21 09:12 
---
Will this problem get fixed on the 4.5 branch too?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949

[Bug tree-optimization/43949] [4.3/4.4/4.5 Regression] bogus warning: array subscript is above array bounds

2010-05-14 Thread rguenth at gcc dot gnu dot org 


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

   Priority|P3  |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949

[Bug tree-optimization/43949] [4.3/4.4/4.5 Regression] bogus warning: array subscript is above array bounds

2010-05-04 Thread rguenth at gcc dot gnu dot org 


--- Comment #4 from rguenth at gcc dot gnu dot org  2010-05-04 09:53 ---
Subject: Bug 43949

Author: rguenth
Date: Tue May  4 09:53:28 2010
New Revision: 159020

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159020
Log:
2010-05-04  Richard Guenther  

PR tree-optimization/43949
* tree-vrp.c (extract_range_from_binary_expr): Only handle
TRUNC_MOD_EXPR.

Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949

[Bug tree-optimization/43949] [4.3/4.4/4.5 Regression] bogus warning: array subscript is above array bounds

2010-05-01 Thread rguenth at gcc dot gnu dot org 


--- Comment #3 from rguenth at gcc dot gnu dot org  2010-05-01 21:31 ---
Fixed for trunk sofar.


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

  Component|other   |tree-optimization
   Keywords||diagnostic, missed-
   ||optimization
  Known to work||4.2.4 4.6.0
Summary|bogus warning: array|[4.3/4.4/4.5 Regression]
   |subscript is above array|bogus warning: array
   |bounds  |subscript is above array
   ||bounds
   Target Milestone|--- |4.3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43949