Subversion Repositories openrisc_2011-10-31

! { dg-do run }

! { dg-options "-O3 -fdump-tree-original" }

! Tests the fix for PR33850, in which one of the two assignments

! below would produce an unnecessary temporary for the index

! expression, following the fix for PR33749.

!

! Contributed by Dick Hendrickson on comp.lang.fortran,

! " Most elegant syntax for inverting a permutation?" 20071006

!

  integer(4) :: p4(4) = (/2,4,1,3/)

  integer(4) :: q4(4) = (/2,4,1,3/)

  integer(8) :: p8(4) = (/2,4,1,3/)

  integer(8) :: q8(4) = (/2,4,1,3/)

  p4(q4) = (/(i, i = 1, 4)/)

  q4(q4) = (/(i, i = 1, 4)/)

  p8(q8) = (/(i, i = 1, 4)/)

  q8(q8) = (/(i, i = 1, 4)/)

  if (any(p4 .ne. q4)) call abort ()

  if (any(p8 .ne. q8)) call abort ()

end

! Whichever is the default length for array indices will yield

! parm 9 times, because a temporary is not necessary.  The other

! cases will all yield a temporary, so that atmp appears 27 times.

! Note that it is the kind conversion that generates the temp.

!

! { dg-final { scan-tree-dump-times "parm" 9 "original" } }

! { dg-final { scan-tree-dump-times "atmp" 27 "original" } }

! { dg-final { cleanup-tree-dump "original" } }