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| author | Janne Blomqvist <jb@gcc.gnu.org> | 2016-08-29 08:29:16 +0000 |
|---|---|---|
| committer | Janne Blomqvist <jb@gcc.gnu.org> | 2016-08-29 08:29:16 +0000 |
| commit | 29f5fdbef5d6390917ff1813d514afc52ac49e71 (patch) | |
| tree | a0f4be16906bd09717a41d1613c0310c870fe9d2 | |
| parent | 4642ffcd838f86d376c8dbdf601c93e85e984e71 (diff) | |
PR fortran/77261 Run random_3 testcase only when real(10) is available.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@239817 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/random_3.f90 | 36 |
2 files changed, 27 insertions, 15 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ae34d886459..13f0282809a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -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 diff --git a/gcc/testsuite/gfortran.dg/random_3.f90 b/gcc/testsuite/gfortran.dg/random_3.f90 index 8e087c48267..04910002c1f 100644 --- a/gcc/testsuite/gfortran.dg/random_3.f90 +++ b/gcc/testsuite/gfortran.dg/random_3.f90 @@ -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 |