1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/der_charlen_1.f90 b/gcc/testsuite/gfortran.dg/der_charlen_1.f90
new file mode 100644
index 000000000..4bdace228
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/der_charlen_1.f90
@@ -0,0 +1,26 @@
+! { dg-do compile }
+! PR 18990
+! we used to ICE on these examples
+module core
+  type, public  :: T
+     character(len=I)  :: str ! { dg-error "needs to be a constant specification expression" }
+  end type T
+  private
+CONTAINS
+  subroutine FOO(X)
+    type(T), intent(in)          :: X
+  end subroutine
+end module core
+
+module another_core
+  type :: T
+     character(len=*)  :: s ! { dg-error "needs to be a constant specification expr" }
+  end type T
+  private
+CONTAINS
+  subroutine FOO(X)
+    type(T), intent(in)          :: X
+  end subroutine
+end module another_core
+
+! { dg-final { cleanup-modules "core another_core" } }