| Message ID | trinity-b70dd10d-5b89-4c6f-83c9-2d3abf732f70-1593116366627@3c-app-gmx-bs75 |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
Early ping (might make it into 10.2.1). > This PR is due to a plain NULL pointer that needs to get caught in the right place. > > Regtested on x86_64-pc-linux-gnu. > > OK for master / backports where applicable? > > Thanks, > Harald > > > PR fortran/93337 - ICE in gfc_dt_upper_string, at fortran/module.c:441 > > When declaring a polymorphic variable that is not a dummy, allocatable or > pointer, an ICE occurred due to a NULL pointer dereference. Check for > that situation and punt. > > gcc/fortran/ > PR fortran/93337 > * class.c (gfc_find_derived_vtab): Punt if name is not set. > > Thanks, Harald
diff --git a/gcc/fortran/class.c b/gcc/fortran/class.c index 2b760efe8d7..48f81d89a74 100644 --- a/gcc/fortran/class.c +++ b/gcc/fortran/class.c @@ -2277,6 +2277,9 @@ gfc_find_derived_vtab (gfc_symbol *derived) if (!derived) return NULL; + if (!derived->name) + return NULL; + /* Find the gsymbol for the module of use associated derived types. */ if ((derived->attr.use_assoc || derived->attr.used_in_submodule) && !derived->attr.vtype && !derived->attr.is_class) diff --git a/gcc/testsuite/gfortran.dg/pr93337.f90 b/gcc/testsuite/gfortran.dg/pr93337.f90 new file mode 100644 index 00000000000..5cfb9297990 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr93337.f90 @@ -0,0 +1,10 @@ +! { dg-do compile } +! PR fortran/93337 - ICE in gfc_dt_upper_string, at fortran/module.c:441 + +program p + type t + character(:), allocatable :: a + end type t + class(t) :: x ! { dg-error "must be dummy, allocatable or pointer" } + x = x ! { dg-error "must not be polymorphic in intrinsic assignment" } +end