[llvm-dev] [test-suite] making polybench/symm succeed with "-Ofast" and "-ffp-contract=on"

[Renato Golin via llvm-dev]

On 12 October 2016 at 15:28, Hal Finkel <hfinkel at anl.gov> wrote:
> I agree and understand, and we may need a tolerance in practice to deal with differences from denormal handling, etc. However, if Sebastian is seeing differences on the same system, we should understand why. Is he running on an ARM Darwin system, or an x86 using fp80 arithmetic, etc.? (Senastian?)

Oh, I didn't mean that. But since we will run the same tests on Darwin
and x86-fp80, the results need to take that into account from the
beginning.

Though, I recall Sebastian was using -Ofast, which does turn
-ffast-math, so the same idea applies, no?

cheers,
--renato