https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87105
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amonakov at gcc dot gnu.org
--- Comment #5 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
We don't manage to use MIN_EXPR and get branchy code that gets optimized for
boundary cases (when min/max pick 0.0/1.0). For the minimal input
double f(double x, double y)
{
return y < x ? y : x;
}
we get MIN_EXPR in .gimple dump with C frontend and -ffinite-math-only
-fno-signed-zeros, but not with C++ frontend.
(and even then, hacking the source to use __builtin_fmin to get straight-line
code, SLP does not manage to vectorize that)
