https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97786

            Bug ID: 97786
           Summary: rs6000 isinf etc. are pretty horrible
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: segher at gcc dot gnu.org
  Target Milestone: ---

int isfinite(double x) { return __builtin_isfinite (x); }
int isinf(double x) { return __builtin_isinf (x); }
int isinf_sign(double x) { return __builtin_isinf_sign (x); }
int isnan(double x) { return __builtin_isnan (x); }
int isnormal(double x) { return __builtin_isnormal (x); }
int fpclassify(double x) { return __builtin_fpclassify (5, 6, 7, 8, 9, x); }

We can generate much better code for all these than the generic code
we use now.

Reply via email to