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PR fortran/77261 Run random_3 testcase only when real(10) is available.

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From-SVN: r239817
This commit is contained in:
Janne Blomqvist 2016-08-29 11:29:16 +03:00
parent 78a3bdba8a
commit 468d95c82c
2 changed files with 27 additions and 15 deletions
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6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2016-08-29 Janne Blomqvist <jb@gcc.gnu.org>
PR fortran/77261
* gfortran.dg/random_3.f90: Run testcase only when real(10) is
available.
2016-08-28 Tom de Vries <tom@codesourcery.com>
PR lto/70955

36
gcc/testsuite/gfortran.dg/random_3.f90
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@ -1,10 +1,10 @@
! { dg-do run }
! { dg-require-effective-target fortran_large_real }
! Check that the random_seed for real(10) or real(16) exists and that
! real(8) and real(10) or real(16) random number generators
! Check that the random_seed for real(10) exists and that
! real(8) and real(10) random number generators
! return the same sequence of values.
! Mostly copied from random_2.f90
program random_4
program random_3
integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)
integer, dimension(:), allocatable :: seed
@ -13,17 +13,23 @@ program random_4
real, parameter :: delta = 1.d-10
integer n
call random_seed (size=n)
allocate (seed(n))
call random_seed (get=seed)
! Test both array valued and scalar routines.
call random_number(r8)
call random_number (r8(10))
! Run the test only if real(10) is available. With the current
! xorshift1024* PRNG the real(16) generator uses two uint64_t values
! for every real(16) value generated, and hence the sequences won't
! be the same as with real(4,8,10).
if (k == 10) then
call random_seed (size=n)
allocate (seed(n))
call random_seed (get=seed)
! Test both array valued and scalar routines.
call random_number(r8)
call random_number (r8(10))
! Reset the seed and get the real(8) values.
call random_seed (put=seed)
call random_number(r10)
call random_number (r10(10))
! Reset the seed and get the real(8) values.
call random_seed (put=seed)
call random_number(r10)
call random_number (r10(10))
if (any ((r8 - r10) .gt. delta)) call abort
end program random_4
if (any ((r8 - r10) .gt. delta)) call abort
end if
end program random_3