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Re: [PATCH, gfortran testsuite]: Do not load denormals in gfortran.fortran_torture/intrinsic_nearest.f90

N.M. Maclaren wrote:
On Aug 21 2009, Uros Bizjak wrote:
On 08/21/2009 07:09 PM, Tobias Burnus wrote:

It is not nice to upset FP hardware of various target architectures by
generating denormalized single-precision FP numbers [1] in the
testsuite. ...
It does look dangerous to generate specific bit patterns which are likely to break with options such as -ffast-math.


Most HPC systems use hard underflow, because it is faster.
This is likely to change a year a so from now, no doubt influenced by gfortran not having adequate provision to control underflow setting, and gcc programmers not caring to deal with it.

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