1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/pr45636.f90 b/gcc/testsuite/gfortran.dg/pr45636.f90
new file mode 100644
index 000000000..24447e837
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr45636.f90
@@ -0,0 +1,14 @@
+! PR fortran/45636
+! { dg-do compile }
+! { dg-options "-O2 -fdump-tree-forwprop2" }
+! PR 45636 - make sure no memset is needed for a short right-hand side.
+program main
+  character(len=2), parameter :: x='a '
+  character(len=1), parameter :: y='b'
+  character(len=4) :: a, b
+  a = x
+  b = y
+  call sub(a, b)
+end program main
+! { dg-final { scan-tree-dump-times "memset" 0 "forwprop2" } }
+! { dg-final { cleanup-tree-dump "forwprop2" } }