1! We want to check that ISHFT evaluates its arguments only once
2!
3! { dg-do run }
4! { dg-options "-fdump-tree-original" }
5
6program test
7
8  if (leadz (foo()) /= bit_size(0) - 1) call abort
9  if (leadz (foo()) /= bit_size(0) - 2) call abort
10  if (trailz (foo()) /= 0) call abort
11  if (trailz (foo()) /= 2) call abort
12  if (trailz (foo()) /= 0) call abort
13  if (trailz (foo()) /= 1) call abort
14
15contains
16
17  integer function foo ()
18    integer, save :: i = 0
19    i = i + 1
20    foo = i
21  end function
22
23end program
24
25! The regexp "foo ()" should be seen once in the dump:
26!   -- once in the function definition itself
27!   -- plus as many times as the function is called
28!
29! { dg-final { scan-tree-dump-times "foo *\\\(\\\)" 7 "original" } }
30! { dg-final { cleanup-tree-dump "original" } }
31