obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 25 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/trim_optimize_4.f90 b/gcc/testsuite/gfortran.dg/trim_optimize_4.f90
new file mode 100644
index 000000000..41c65b10b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/trim_optimize_4.f90
@@ -0,0 +1,25 @@
+! { dg-do run }
+! PR 47065 - make sure that trim optimization does not lead to
+! wrong-code with aliasing.
+! Test case provided by Tobias Burnus.
+program main
+  character(len=12) :: str
+  str = '1234567890'
+  call sub(trim(str), str)
+  ! Should print '12345       '
+  if (str /= '12345       ') call abort
+  call two(trim(str))
+  if (str /= '123         ') call abort
+contains
+  subroutine sub(a,b)
+    character(len=*), intent(in) :: a
+    character(len=*), intent(out) :: b
+    b = ''
+    b = a(1:5)
+  end subroutine sub
+  subroutine two(a)
+    character(len=*), intent(in) :: a
+    str = ''
+    str(1:3) = a(1:3)
+  end subroutine two
+end program main