Re: [Bug-apl] fractional power ¯8⋆÷3

[Jay Foad]

I'd guess -ffinite-math-only.

Jay.

On 13 April 2016 at 19:36, Xiao-Yong Jin <address@hidden> wrote:
> Looks like a gcc optimization problem (clang works correctly).
> Using ‘-Ofast’ with gcc 5.3 reproduces the bug.
> Using ‘-O3’ works fine.
>
> So one of the options down here caused the bug:
> -fassociative-math
> -fcx-limited-range
> -ffinite-math-only
> -fmath-errno
> -freciprocal-math
> -fsigned-zeros
> -ftrapping-math
> -funsafe-math-optimizations
>
> I’ll see if I can pin down exactly which one.  Do you have any idea what 
> could be the culprit?
>
> - Xiao-Yong
>
>
>> On Apr 13, 2016, at 1:01 PM, Juergen Sauermann <address@hidden> wrote:
>>
>> Hi Xiao,
>>
>> interesting. I am still getting this in *SVN**719*:
>>
>> *      8 ¯8⋆÷3
>> 2 1J1.732050808*
>>
>> /// Jürgwn
>>
>>
>> On 04/13/2016 03:42 AM, Xiao-Yong Jin wrote:
>>> Hi,
>>>
>>> With the svn version 719,
>>>
>>>       8 ¯8⋆÷3
>>> 2 0.000000000
>>>
>>> but with the release version 1.5,
>>>
>>>       8 ¯8⋆÷3
>>> 2 1J1.732050808
>>>
>>> Best,
>>> Xiao-Yong
>>>
>>>
>>>
>>
>
>