std.math performance (SSE vs. real)

via Digitalmars-d digitalmars-d at puremagic.com
Mon Jun 30 15:14:55 PDT 2014


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

Intel:

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

ARM Neon vs VPF…

etc.



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