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! { dg-do run }
! Program to check corner cases for DO statements.
program do_1
  implicit none
  integer i, j
 
  ! limit=HUGE(i), step 1
  j = 0
  do i = HUGE(i) - 10, HUGE(i), 1
    j = j + 1
  end do
  if (j .ne. 11) call abort
  ! limit=HUGE(i), step > 1
  j = 0
  do i = HUGE(i) - 10, HUGE(i), 2
    j = j + 1
  end do
  if (j .ne. 6) call abort
  j = 0
  do i = HUGE(i) - 9, HUGE(i), 2
    j = j + 1
  end do
  if (j .ne. 5) call abort
 
  ! Same again, but unknown loop step
  if (test1(10, 1) .ne. 11) call abort
  if (test1(10, 2) .ne. 6) call abort
  if (test1(9, 2) .ne. 5) call abort
 
  ! Zero iterations
  j = 0
  do i = 1, 0, 1
    j = j + 1
  end do
  if (j .ne. 0) call abort
  j = 0
  do i = 1, 0, 2
    j = j + 1
  end do
  if (j .ne. 0) call abort
  j = 0
  do i = 1, 2, -1
    j = j + 1
  end do
  if (j .ne. 0) call abort
  call test2 (0, 1)
  call test2 (0, 2)
  call test2 (2, -1)
  call test2 (2, -2)
 
  ! Bound near smallest value
  j = 0;
  do i = -HUGE(i), -HUGE(i), 10
    j = j + 1
  end do
  if (j .ne. 1) call abort
contains
! Returns the number of iterations performed.
function test1(r, step)
  implicit none
  integer test1, r, step
  integer k, n
  k = 0
  do n = HUGE(n) - r, HUGE(n), step
    k = k + 1
  end do
  test1 = k
end function
 
subroutine test2 (lim, step)
  implicit none
  integer lim, step
  integer k, n
  k = 0
  do n = 1, lim, step
    k = k + 1
  end do
  if (k .ne. 0) call abort
end subroutine
end program

Line No.	Rev	Author	Line
1	149	jeremybenn	`! { dg-do run }`
2			`! Program to check corner cases for DO statements.`
3			`program do_1`
4			`implicit none`
5			`integer i, j`
6
7			`! limit=HUGE(i), step 1`
8			`j = 0`
9			`do i = HUGE(i) - 10, HUGE(i), 1`
10			`j = j + 1`
11			`end do`
12			`if (j .ne. 11) call abort`
13			`! limit=HUGE(i), step > 1`
14			`j = 0`
15			`do i = HUGE(i) - 10, HUGE(i), 2`
16			`j = j + 1`
17			`end do`
18			`if (j .ne. 6) call abort`
19			`j = 0`
20			`do i = HUGE(i) - 9, HUGE(i), 2`
21			`j = j + 1`
22			`end do`
23			`if (j .ne. 5) call abort`
24
25			`! Same again, but unknown loop step`
26			`if (test1(10, 1) .ne. 11) call abort`
27			`if (test1(10, 2) .ne. 6) call abort`
28			`if (test1(9, 2) .ne. 5) call abort`
29
30			`! Zero iterations`
31			`j = 0`
32			`do i = 1, 0, 1`
33			`j = j + 1`
34			`end do`
35			`if (j .ne. 0) call abort`
36			`j = 0`
37			`do i = 1, 0, 2`
38			`j = j + 1`
39			`end do`
40			`if (j .ne. 0) call abort`
41			`j = 0`
42			`do i = 1, 2, -1`
43			`j = j + 1`
44			`end do`
45			`if (j .ne. 0) call abort`
46			`call test2 (0, 1)`
47			`call test2 (0, 2)`
48			`call test2 (2, -1)`
49			`call test2 (2, -2)`
50
51			`! Bound near smallest value`
52			`j = 0;`
53			`do i = -HUGE(i), -HUGE(i), 10`
54			`j = j + 1`
55			`end do`
56			`if (j .ne. 1) call abort`
57			`contains`
58			`! Returns the number of iterations performed.`
59			`function test1(r, step)`
60			`implicit none`
61			`integer test1, r, step`
62			`integer k, n`
63			`k = 0`
64			`do n = HUGE(n) - r, HUGE(n), step`
65			`k = k + 1`
66			`end do`
67			`test1 = k`
68			`end function`
69
70			`subroutine test2 (lim, step)`
71			`implicit none`
72			`integer lim, step`
73			`integer k, n`
74			`k = 0`
75			`do n = 1, lim, step`
76			`k = k + 1`
77			`end do`
78			`if (k .ne. 0) call abort`
79			`end subroutine`
80			`end program`

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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gfortran.dg/] [do_1.f90] - Blame information for rev 827