gcc/testsuite/gfortran.dg/extract_recip_1.f

   1 ! { dg-do compile }
   2 ! { dg-options "-Ofast -fdump-tree-optimized-raw" }
   3
   4       SUBROUTINE F(N,X,Y,Z,A,B)
   5           DIMENSION X(4,4), Y(4), Z(4)
   6           REAL, INTENT(INOUT) :: A, B
   7
   8           A = 1 / (Y(N)*Y(N))
   9
  10           DO I = 1, NV
  11           X(I, I) = 1 + X(I, I)
  12           ENDDO
  13
  14           Z(1) =  B / Y(N)
  15           Z(2) =  N / Y(N)
  16           RETURN
  17       END
  18
  19 ! { dg-final { scan-tree-dump-times "rdiv_expr" 1 "optimized" } }