re PR lto/41576 (LTO complains about mismatches in common sections)

2012-01-05  Richard Guenther  <rguenther@suse.de>

	PR lto/41576
	* gfortran.dg/lto/pr41576_0.f90: New testcase.
	* gfortran.dg/lto/pr41576_1.f90: Likewise.

From-SVN: r182907

gcc/testsuite/ChangeLog

+2012-01-05  Richard Guenther  <rguenther@suse.de>
+
+	PR lto/41576
+	* gfortran.dg/lto/pr41576_0.f90: New testcase.
+	* gfortran.dg/lto/pr41576_1.f90: Likewise.
+
 2012-01-04  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/51695

gcc/testsuite/gfortran.dg/lto/pr41576_0.f90

+! { dg-lto-do run }
+! { dg-lto-options { { -O2 -flto -Werror } } }
+
+subroutine foo
+  common /bar/ a, b
+  integer(4) :: a ,b
+  a = 1
+  b = 2
+end
+

gcc/testsuite/gfortran.dg/lto/pr41576_1.f90

+program test
+  common /bar/ c, d
+  integer(4) :: c, d
+  call foo
+  if (c/=1 .or. d/=2) call abort
+end program test
+