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! { dg-options "-O2 -fpredictive-commoning" }
subroutine foo(x,y,n)
integer n
real*8 y(n,n,n),x(n,n,n)
integer k, j, i
do k = 2, n-1
do j = 2, n-1
do I = 2, n-1
y(i,j,k) = y(i,j,k)
+ + (x(i-1,j-1,k)
+ + x(i,j-1,k-1)
+ + x(i,j+1,k-1)
+ + x(i,j+1,k+1)
+ + x(i+1,j,k+1))
+ + (x(i-1,j-1,k-1)
+ + x(i+1,j-1,k-1)
+ + x(i-1,j+1,k-1)
+ + x(i+1,j+1,k-1)
+ + x(i-1,j+1,k+1)
+ + x(i+1,j+1,k+1))
enddo
enddo
enddo
return
end
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