1! { dg-do run }
2! { dg-options "-ffrontend-optimize -fdump-tree-original" }
3! PR 57071 - Check that 1**k is transformed into 1
4program main
5  implicit none
6  integer, parameter :: n = 3
7  integer(kind=8), dimension(-n:n) :: a
8  integer, dimension(-n:n) :: c, d
9  integer :: m
10  integer :: i, v
11  integer (kind=2) :: i2
12
13  v = 1
14  m = n
15  ! Test in scalar expressions
16  do i=-n,n
17     if (v /= 1**i) call abort
18  end do
19
20  ! Test in array constructors
21  a(-m:m) = [ (1**i, i= -m, m) ]
22  if (any(a .ne. v)) call abort
23
24  ! Test in array expressions
25  c = [ ( i, i = -n , n ) ]
26  d = 1**c
27  if (any(d .ne. v)) call abort
28
29  ! Test in different kind expressions
30  do i2=-n,n
31     if (v /= 1**i2) call abort
32  end do
33
34end program main
35! { dg-final { scan-tree-dump-times "_gfortran_pow_i4_i4" 0 "original" } }
36! { dg-final { cleanup-tree-dump "original" } }
37