[flang] Disable real(16) test on ppc64le and powerpc64 (#219)

Author: kkwli

Fortran/gfortran/regression/override.yaml

@@ -88,6 +88,9 @@
 "default_format_denormal_2.f90":
   disabled_on: ["ppc64le-*-*", "powerpc-*-*"]
 
+"nan_7.f90":
+  disabled_on: ["ppc64le-*-*", "powerpc-*-*"]
+
 # unimplemented feature on AIX: Nested arguments are unimplemented
 "assumed_type_1.f90":
   disabled_on: ["powerpc-*-aix"]

Fortran/gfortran/regression/tests.cmake

@@ -5425,7 +5425,7 @@ run;nan_1.f90;;;;
 run;nan_2.f90;;-fno-range-check -pedantic;;
 run;nan_3.f90;;-fno-range-check;;
 run;nan_6.f90;;;;
-run;nan_7.f90;;-fno-range-check;;
+run;nan_7.f90;;-fno-range-check;;ppc64le-.+-.+ powerpc-.+-.+
 run;nearest_1.f90;;-O0 -ffloat-store;;
 run;nearest_2.f90;;-fno-range-check;;
 run;nearest_3.f90;;;;