Hello, Recently vector ABI was introduced into GCC Vector versions of math functions were incorporated in to GlibC starting from v2.22. Unfortunately, to get this functions work `-fopenmp' switch must be added to compiler invocation. This is due to the fact that vector variant of math functions generated using `omp declare simd' pragma.
There's an alternative to use __attribute__((vector)) for function. Currently it's enabled under `-fcilkplus' switch. To enable vectorization of loops w/ calls to math functions it is reasonable to enable parsing of attribute vector for functions unconditionally and change GlibC's header file not to use `omp declare simd', but use __attribute__((vector)) instead. If community have no pre-denial, I'll prepare a patch for GCC main trunk & GlibC. -- Thanks, K
