math tests: reduced precision on Opteron 6272

[Joseph Myers]

On Wed, 29 Jun 2016, Aurelien Jarno wrote:

> Would it make sense to regenerate the libm-test-ulps on this CPU?

Yes.  (Long-term if the MPC performance issues for inverse trig and 
hyperbolic functions get fixed it will be possible to move these tests to 
auto-libm-test-in and probably generate more tests to make the ulps more 
accurately reflect the maximum errors of the functions, in which case 
there may be less dependence on the processor.)

-- 
Joseph S. Myers
joseph@codesourcery.com