gcc/testsuite/gfortran.dg/vect/pr19049.f90

   1 ! { dg-do compile }
   2 ! { dg-require-effective-target vect_float }
   3
   4 subroutine s111 (ntimes,ld,n,ctime,dtime,a,b,c,d,e,aa,bb,cc)
   5 !     linear dependence testing
   6 !     no dependence - vectorizable
   7 !     but not consecutive access
   8
   9       integer ntimes, ld, n, i, nl
  10       real a(n), b(n), c(n), d(n), e(n), aa(ld,n), bb(ld,n), cc(ld,n)
  11       real t1, t2, second, chksum, ctime, dtime, cs1d
  12       do 1 nl = 1,2*ntimes
  13       do 10 i = 2,n,2
  14          a(i) = a(i-1) + b(i)
  15   10  continue
  16       call dummy(ld,n,a,b,c,d,e,aa,bb,cc,1.)
  17   1   continue
  18       return
  19       end
  20
  21 ! { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" } }
  22 ! { dg-final { scan-tree-dump-times "complicated access pattern" 1 "vect" } }
  23 ! { dg-final { cleanup-tree-dump "vect" } }
  24