gcc/testsuite/gfortran.dg/graphite/pr43349.f

   1 ! { dg-options "-O2 -floop-nest-optimize" }
   2
   3       SUBROUTINE BUG(A,B,X,Y,Z,N)
   4       IMPLICIT NONE
   5       DOUBLE PRECISION A(*),B(*),X(*),Y(*),Z(*)
   6       INTEGER N,J,K
   7       K = 0
   8       DO J = 1,N
   9          K = K+1
  10          X(K) = B(J+N*7)
  11          Y(K) = B(J+N*8)
  12          Z(K) = B(J+N*2)  + A(J+N*2)
  13          K = K+1
  14          X(K) = B(J+N*3)  + A(J+N*3)
  15          Y(K) = B(J+N*9)  + A(J)
  16          Z(K) = B(J+N*15)
  17          K = K+1
  18          X(K) = B(J+N*4)  + A(J+N*4)
  19          Y(K) = B(J+N*15)
  20          Z(K) = B(J+N*10) + A(J)
  21          K = K+1
  22          X(K) = B(J+N*11) + A(J+N)
  23          Y(K) = B(J+N*5)  + A(J+N*5)
  24          Z(K) = B(J+N*16)
  25          K = K+1
  26          X(K) = B(J+N*16)
  27          Y(K) = B(J+N*6)  + A(J+N*6)
  28          Z(K) = B(J+N*12) + A(J+N)
  29          K = K+1
  30          X(K) = B(J+N*13) + A(J+N*2)
  31          Y(K) = B(J+N*17)
  32          Z(K) = B(J+N*7)  + A(J+N*7)
  33       ENDDO
  34       RETURN
  35       END