https://sourceware.org/bugzilla/show_bug.cgi?id=28230

--- Comment #1 from Jan Beulich <jbeulich at suse dot com> ---
sysdeps/x86_64/fpu/s_log1pl.S otoh has

        .align ALIGNARG(4)
        /* The fyl2xp1 can only be used for values in
                -1 + sqrt(2) / 2 <= x <= 1 - sqrt(2) / 2
           0.29 is a safe value.
        */
limit:  .tfloat 0.29
        /* Please note:  we use a double value here.  Since 1.0 has
           an exact representation this does not effect the accuracy
           but it helps to optimize the code.  */
one:    .double 1.0

where pretty clearly .tfloat is expected to behave in an ABI-conforming way.

The use of ".byte 0, 0, 0, 0, 0, 0" is dubious - should be .align (or one of
the variants) instead imo. See e.g. sysdeps/i386/fpu/s_asinhl.S where alignment
is being enforced.

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