!
! Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
! See https://llvm.org/LICENSE.txt for license information.
! SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
!

program testieee18flushz
use ieee_arithmetic
real*4 a, ral, rone
real*4 aa1(140), aa2(140)
logical ll1(140), le1(140)
logical luflow
logical lfsav(5), lfset(5)

lfset = .false.
call ieee_get_halting_mode(ieee_all, lfsav)
call ieee_set_halting_mode(ieee_all, lfset)

call ieee_get_underflow_mode(luflow)
call ieee_set_underflow_mode(.false.)

rone = 1.0
rlogb = 0.0
a = rone
do j = 1, 140
  ral = ieee_logb(a)
  aa1(j) = ral
  if (j .le. 127) then
    aa2(j) = rlogb
  else
    aa2(j) = ieee_value(rlogb, ieee_negative_inf)
  end if
  i = int(ieee_rint(ral))
  a = a * 0.5
  rlogb = rlogb - 1.0
end do

do j = 1, 140
  ll1(j) = aa1(j) .eq. aa2(j)
end do

le1 = .true.

call check(ll1, le1, 140)

call ieee_set_underflow_mode(luflow)
call ieee_set_halting_mode(ieee_all, lfsav)
end