--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gfortran.dg/pr46519-1.f	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,46 @@
+! { dg-do compile { target i?86-*-* x86_64-*-* } }
+! { dg-options "-O3 -mavx -mvzeroupper -fno-tree-slp-vectorize -mtune=generic -dp" }
+
+      PROGRAM MG3XDEMO 
+      INTEGER LM, NM, NV, NR, NIT
+
+
+      PARAMETER( LM=7 )
+C      PARAMETER( NIT=40 )
+      PARAMETER( NM=2+2**LM, NV=NM**3 )
+      PARAMETER( NR = (8*(NM**3+NM**2+5*NM-23+7*LM))/7 )
+C
+C
+C If commented line is used than there is no penalty
+C	COMMON /X/ U, V, R, A, C, IR, MM
+	COMMON /X/ A, C, IR, MM
+      REAL*8 A(0:3),C(0:3)
+
+      INTEGER IT, N
+      INTEGER LMI, MTIME, NTIMES
+C
+      READ *,LMI
+      READ *,NIT
+      READ *,NTIMES
+      READ *,U0
+
+      READ 9004, A
+      READ 9004, C
+9004  FORMAT (4D8.0)
+
+      DO I = 0, 3
+	A(I) = A(I)/3.0D0
+	C(I) = C(I)/64.0D0
+      ENDDO
+C
+      N  = 2 + 2**LMI
+
+      WRITE(6,7)N-2,N-2,N-2,NIT
+ 6    FORMAT( I4, 2E19.12)
+ 7    FORMAT(/,' KERNEL B:  SOLVING A POISSON PROBLEM ON A ',I6,' BY ',
+     > I6,' BY ',I6,' GRID,',/,' USING ',I6,' MULTIGRID ITERATIONS.',/)
+C
+      STOP
+      END
+
+! { dg-final { scan-assembler-times "avx_vzeroupper" 1 } }