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
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1 files changed, 53 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.fortran-torture/execute/common.f90 b/gcc/testsuite/gfortran.fortran-torture/execute/common.f90
new file mode 100644
index 000000000..2ea1788eb
--- /dev/null
+++ b/gcc/testsuite/gfortran.fortran-torture/execute/common.f90
@@ -0,0 +1,53 @@
+! Program to test COMMON and EQUIVALENCE.
+program common
+   real (kind=8) a(8)
+   real (kind=8) b(5), c(5)
+   common /com1/b,c
+   equivalence (a(1), b(2))
+   b = 100
+   c = 200
+   call common_pass
+   call common_par (a, b,c)
+   call global_equiv
+   call local_equiv
+end
+
+! Use common block to pass values
+subroutine common_pass
+   real (kind=8) a(8)
+   real (kind=8) b(5), c(5)
+   common /com1/b,c
+   equivalence (a(1), b(2))
+   if (any (a .ne. (/100,100,100,100,200,200,200,200/))) call abort
+end subroutine
+
+! Common variables as argument
+subroutine common_par (a, b, c)
+   real (kind=8) a(8), b(5), c(5)
+   if (any (a .ne. (/100,100,100,100,200,200,200,200/))) call abort
+   if (any (b .ne. (/100,100,100,100,100/))) call abort
+   if (any (c .ne. (/200,200,200,200,200/))) call abort
+end subroutine
+
+! Global equivalence
+subroutine global_equiv
+   real (kind=8) a(8), b(5), c(5), x(8), y(4), z(4)
+   common /com2/b, c, y, z
+   equivalence (a(1), b(2))
+   equivalence (x(4), y(1))
+   b = 100
+   c = 200
+   y = 300
+   z = 400
+   if (any (a .ne. (/100,100,100,100,200,200,200,200/))) call abort
+   if (any (x .ne. (/200,200,200,300,300,300,300,400/))) call abort 
+end
+
+! Local equivalence
+subroutine local_equiv
+  real (kind=8) a(8), b(10)
+  equivalence (a(1), b(3))
+  b(1:5) = 100
+  b(6:10) = 200
+  if (any (a .ne. (/100,100,100,200,200,200,200,200/))) call abort
+end subroutine