gcc/testsuite/gfortran.dg/pr34163.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-O2 -fpredictive-commoning -fdump-tree-pcom-details" }
   3 subroutine trisolve2(x,i1,i2,nxyz)
   4 integer :: nxyz
   5 real,dimension(nxyz):: au1
   6 real,allocatable,dimension(:) :: gi
   7 integer :: i1 , i2
   8 real,dimension(i2)::x
   9 integer :: i
  10 allocate(gi(nxyz))
  11 do i = i1+1 , i2
  12    x(i) = gi(i)*(x(i)-au1(i-1)*x(i-1))
  13 enddo
  14 end subroutine trisolve2
  15 ! { dg-final { scan-tree-dump "Executing predictive commoning" "pcom" } }
  16 ! { dg-final { cleanup-tree-dump "pcom" } }