[Bug fortran/56226] Add support for DEC UNION and MAP extensions

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56226

--- Comment #25 from Andreas Schwab <schwab@linux-m68k.org> ---
FAIL: gfortran.dg/dec_union_4.f90   -O0  execution test
FAIL: gfortran.dg/dec_union_4.f90   -O1  execution test
FAIL: gfortran.dg/dec_union_4.f90   -O2  execution test
FAIL: gfortran.dg/dec_union_4.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/dec_union_4.f90   -O3 -g  execution test
FAIL: gfortran.dg/dec_union_4.f90   -Os  execution test