https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105800
Bug ID: 105800
Summary: Segfault deallocating a class, dimension(:) array
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: mscfd at gmx dot net
Target Milestone: ---
Created attachment 53062
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53062&action=edit
test class_dealloc.f90
Creating an array in a function with return value "type(t), dimension(:)", and
assigning it to a "class(t), dimension(:)" variable eventually leads to a
segfault when deallocating the array. See attached test.
valgrind shows invalid read due to uninitialised value (presumably the
type-descriptor of the "class(t), dimension(:)" variable is not completely
initialised). If the "type(t)" is changed to "class(t)" in the create function,
then it works fine, without any complains from valgrind.
