Re: std.math performance (SSE vs. real)

[Walter Bright via Digitalmars-d]

On 6/30/2014 3:14 PM, "Ola Fosheim Grøstad" 
<ola.fosheim.grostad+dl...@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+dl...@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.