------- Comment #2 from ubizjak at gmail dot com 2007-03-14 17:38 -------
(In reply to comment #0)
> Examine the definition of isinf closely. It returns -1 for -inf.
But:
NOTE
Note that these functions are obsolete. C99 defines macros isfinite(),
isinf() and isnan() (for all types) replacing them. Further note that
the C99 isinf() has weaker guarantees on the return value.
However, it is possible to add &&TARGET_C99_FUNCTIONS to isinf<mode>2 expander
to expand only when we know that target has functions that conform to c99
standard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31175
