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diff --git a/gcc/testsuite/gfortran.dg/common_4.f90 b/gcc/testsuite/gfortran.dg/common_4.f90
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+! { dg-do run }
+! Suppress warnings about misaligned common blocks.
+! { dg-options "-w" }
+! Check misaligned common blocks.
+program prog
+ common /block/ a, b, c
+ integer(kind=1) a
+ integer b, c
+ a = 1
+ b = HUGE(b)
+ c = 2
+ call foo
+end program
+subroutine foo
+ common /block/ a, b, c
+ integer(kind=1) a
+ integer b, c
+ if (a .ne. 1 .or. b .ne. HUGE(b) .or. c .ne. 2) call abort
+end subroutine