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diff --git a/gcc-4.9/gcc/testsuite/gfortran.dg/internal_pack_11.f90 b/gcc-4.9/gcc/testsuite/gfortran.dg/internal_pack_11.f90
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+! { dg-do compile }
+! { dg-options "-fdump-tree-original" }
+!
+! Test the fix for PR43173, where unnecessary calls to internal_pack/unpack
+! were being produced below. These references are contiguous and so do not
+! need a temporary.
+!
+! Contributed Tobias Burnus <burnus@gcc.gnu.org>
+!
+ REAL, allocatable :: ot(:)
+ integer :: time_steps
+
+ call foo (ot) ! OK, no temporary
+ call foo (ot(0:5:1)) ! Was an unnecessary temporary
+ call foo (ot(0:time_steps)) ! Was an unnecessary temporary
+ end
+! { dg-final { scan-tree-dump-times "unpack" 0 "original" } }
+! { dg-final { cleanup-tree-dump "original" } }