1 files changed, 69 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/substr_4.f b/gcc/testsuite/gfortran.dg/substr_4.f
new file mode 100644
index 000000000..fadd5b32d
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/substr_4.f
@@ -0,0 +1,69 @@
+! { dg-do run }
+      subroutine test_lower
+      implicit none
+      character(3), dimension(3) :: zsymel,zsymelr
+      common /xx/ zsymel, zsymelr
+      integer :: znsymelr
+      zsymel = (/ 'X', 'Y', ' ' /)
+      zsymelr= (/ 'X', 'Y', ' ' /)
+      znsymelr=2
+      call check_zsymel(zsymel,zsymelr,znsymelr)
+
+      contains
+
+      subroutine check_zsymel(zsymel,zsymelr,znsymelr)
+        implicit none
+        integer znsymelr, isym
+        character(*) zsymel(*),zsymelr(*)
+        character(len=80) buf
+        zsymel(3)(lenstr(zsymel(3))+1:)='X'
+        write (buf,10) (trim(zsymelr(isym)),isym=1,znsymelr)
+10      format(3(a,:,','))
+        if (trim(buf) /= 'X,Y') call abort
+      end subroutine check_zsymel
+
+      function lenstr(s)
+        character(len=*),intent(in) :: s
+        integer :: lenstr
+        if (len_trim(s) /= 0) call abort
+        lenstr = len_trim(s)
+      end function lenstr
+
+      end subroutine test_lower
+
+      subroutine test_upper
+      implicit none
+      character(3), dimension(3) :: zsymel,zsymelr
+      common /xx/ zsymel, zsymelr
+      integer :: znsymelr
+      zsymel = (/ 'X', 'Y', ' ' /)
+      zsymelr= (/ 'X', 'Y', ' ' /)
+      znsymelr=2
+      call check_zsymel(zsymel,zsymelr,znsymelr)
+
+      contains
+
+      subroutine check_zsymel(zsymel,zsymelr,znsymelr)
+        implicit none
+        integer znsymelr, isym
+        character(*) zsymel(*),zsymelr(*)
+        character(len=80) buf
+        zsymel(3)(:lenstr(zsymel(3))+1)='X'
+        write (buf,20) (trim(zsymelr(isym)),isym=1,znsymelr)
+20      format(3(a,:,','))
+        if (trim(buf) /= 'X,Y') call abort
+      end subroutine check_zsymel
+
+      function lenstr(s)
+        character(len=*),intent(in) :: s
+        integer :: lenstr
+        if (len_trim(s) /= 0) call abort
+        lenstr = len_trim(s)
+      end function lenstr
+
+      end subroutine test_upper
+
+      program test
+        call test_lower
+        call test_upper
+      end program test