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, 20 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/zero_sized_3.f90 b/gcc/testsuite/gfortran.dg/zero_sized_3.f90
new file mode 100644
index 000000000..e4e1c06d2
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/zero_sized_3.f90
@@ -0,0 +1,20 @@
+! { dg-do run }
+! Testcase for PR libfortran/31001
+  implicit none
+
+  integer :: i, j, k
+  integer, allocatable :: mm(:)
+  logical, allocatable :: mask(:)
+
+  do i = 2, -2, -1
+    do k = 0, 1
+      allocate (mm(i), mask(i))
+      mm(:) = k
+      mask(:) = (mm == 0)
+      j = count (mask)
+      print *, pack (mm, mask)
+      if (size (pack (mm, mask)) /= j) call abort
+      deallocate (mm, mask)
+    end do
+  end do
+end