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>>>>> "FP" == Frank Peters <frank.peters@...> writes:
FP> All I need now is for someone to come forward and say that he is using
FP> gcc-4.5.2 and has no problem. Then I'll really start to bang my head.
Using gcc-4.6.0 (compiled with +graphite), using:
-O3 -ggdb3 -march=amdfam10 -ftree-vectorize
a number of the cabs(3) and cpow(3) tests returned (0,0) (for each of
float and double, and each of c and fortran) instead of the correct results.
The sin and cos tests had max errors in the +- 5 ulp range for doubles
and the +- 1.5 range for floats.
Your obsercation that graphite may be to blame is likely correct.
You may be interested in crlibm (correctly rounded lib m):
http://lipforge.ens-lyon.fr/projects/crlibm
http://lipforge.ens-lyon.fr/www/crlibm/
-JimC
--
James Cloos <cloos@...> OpenPGP: 1024D/ED7DAEA6
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