std.math performance (SSE vs. real)

[Walter Bright via Digitalmars-d]

On 6/30/2014 3:14 PM, "Ola Fosheim Grøstad" 
<ola.fosheim.grostad+dlang at gmail.com>" wrote:
> On Monday, 30 June 2014 at 16:54:55 UTC, Walter Bright wrote:
>> On 6/30/2014 4:25 AM, "Ola Fosheim Grøstad"
>> <ola.fosheim.grostad+dlang at gmail.com>" wrote:
>>>
>>> AFAIK they break compliance all the time.
>>
>> Examples, please.
>
> Cell:
>
> http://publib.boulder.ibm.com/infocenter/cellcomp/v101v121/index.jsp?topic=/com.ibm.xlcpp101.cell.doc/proguide/spu_sp_diffs.html

Wow. Fortunately, there's a switch 
http://publib.boulder.ibm.com/infocenter/cellcomp/v101v121/index.jsp?topic=/com.ibm.xlcpp101.cell.doc/proguide/spu_sp_diffs.html 
so it'll work correctly.

> Intel:
>
> http://www.velocityreviews.com/threads/intel-fp-h-w-non-compliance-to-ieee754.746517/

That one looks like a bug.