1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/character_comparison_2.f90 b/gcc/testsuite/gfortran.dg/character_comparison_2.f90
new file mode 100644
index 000000000..d2736f874
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/character_comparison_2.f90
@@ -0,0 +1,40 @@
+! { dg-do run }
+! { dg-options "-O -fdump-tree-original" }
+program main
+  implicit none
+  character(len=4) :: c
+  integer :: n
+  integer :: i
+  integer :: k1, k2
+  common /foo/ i
+
+  n = 0
+  i = 0
+  k1 = 1
+  k2 = 3
+  c = 'abcd'
+  n = n + 1 ; if (c(1:2) == c(1:2)) call yes
+  n = n + 1 ; if (c(k1:k2) >= c(k1:k2)) call yes
+  n = n + 1 ; if (c(:2) <= c(1:2)) call yes
+  n = n + 1 ; if (c(k2:) .eq. c(k2:4)) call yes
+  n = n + 1 ; if (c(:) .ge. c) call yes
+  n = n + 1 ; if (c .le. c) call yes
+  if (c(1:2) /= c(1:2)) call abort
+  if (c(k1:k2) > c(k1:k2)) call abort
+  if (c(:2) < c(1:2)) call abort
+  if (c(:) .ne. c) call abort
+  if (c(:2) .gt. c(1:2)) call abort
+  if (c(1:2) .lt. c(:2)) call abort
+  if (n /= i) call abort
+end program main
+
+subroutine yes
+  implicit none
+  common /foo/ i
+  integer :: i
+  i = i + 1
+end subroutine yes
+
+! { dg-final { scan-tree-dump-times "gfortran_compare_string" 0 "original" } }
+! { dg-final { cleanup-tree-dump "original" } }
+