[Bug other/27322] New: Problem when compiling GMP 4.2 with current mainline

[martin at mpa-garching dot mpg dot de]

If current mainline is used to compile GMP 4.2 on a Pentium4 with a standard
./configure; make; make check
one of GMP's checks fails:

[...]
make[4]: Entering directory `/scratch/gmp-4.2/tests/mpz'
PASS: t-addsub
PASS: t-cmp
ERROR: incorrect plain product in test 53
op1          = -FFFFFFFFFFFFFFFFFFFFFFFFF...0000000000000000000000000 [71992]
op2          = 1FFFFFFFFFFFFFFFFFFFFFFFF...FFFFFFFFFFFFFFFFFFFFFFFFF [202386]
    product  = -61EDD19F23160438880BD99C5...-6701F030DAFAEAD82176BAB51 [274384]
ref_product  = -1FFFFFFFFFFFFFFFFFFFFFFFF...0000000000000000000000000 [274378]
FAIL: t-mul
PASS: t-mul_i
PASS: t-tdiv
[...]

Of course this may be a bug in GMP itself, but I could not reproduce this
failure with gcc 4.1 or the head of the 4.1 branch


-- 
           Summary: Problem when compiling GMP 4.2 with current mainline
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: martin at mpa-garching dot mpg dot de
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27322