[Bug tree-optimization/42720] Problematic condition simplification logic at unswitch-loops pass

[jingyu at google dot com]

------- Comment #12 from jingyu at google dot com  2010-02-02 23:57 -------
Subject: Re:  Problematic condition 
        simplification logic at unswitch-loops pass

Zdenek,

I did dejagnu tests on your patch. It gave no regression on
"--target_board=arm-sim/thumb".
Do you think this patch will be accepted when GCC enters stage1?

Thanks,
Jing


On Sat, Jan 30, 2010 at 3:33 PM, Jing Yu <jingyu@google.com> wrote:
>> I agree that some of the checks in tree_unswitch_single_loop are badly placed
>> -- it does not make sense to check them repeatedly in the recursion. Â I'd
>> suggest to move them to tree_ssa_unswitch_loops, i.e.,
>>
>
> I agree on this modification. Theses three checks only need to be checked once.
>


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42720