https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79154
--- Comment #2 from Chinoune <chinoune.mehdi at hotmail dot com> --- (In reply to kargl from comment #1) > (In reply to Chinoune from comment #0) > > Created attachment 40550 [details] > > the fortran program > > > > I tried to build the program (see attachment) with gfortran (5.4.0 > > linux,cygwin 6.2.0,6.3.0 mingw 6.2.0 linux ...) > > it gave me this error: > > test_simd.f90:6:6: > > > > !$omp declare simd(add) > > 1 > > Error: OpenMP directives at (1) may not appear in PURE or ELEMENTAL > > procedures > > AFAIK, GCC support OpenMP 4.0. On p. 26 of OpenMP 4.0 Standard, one > finds > > Restrictions > > The following restriction applies to all OpenMP directives: > · OpenMP directives may not appear in PURE or ELEMENTAL procedures. > > so you get the above error message. I'll note that OpenMP 4.5 Standard > states > Restrictions > > The following restriction applies to all OpenMP directives: > > Restrictions > > · OpenMP directives, except SIMD and declare target directives, > may not appear in pure > procedures. > > I'll further note that the GCC wiki page for OpenMP sugeests that > no one is actively working on $.5 support. gcc support full openmp 4.5 for c/c++ (see https://gcc.gnu.org/gcc-6/changes.html) and partially for fortran, so the omp simd declare must be accepted.
