https://bugs.kde.org/show_bug.cgi?id=492210

--- Comment #7 from Alexander Monakov <amona...@gmail.com> ---
(In reply to Paul Floyd from comment #6)
> It looks like these have been added as needed, not systematically to cover
> all cases.

In GCC we cannot leave compiling-under-valgrind broken until a release of
Valgrind with the fix for a false positive appears. We apply a workaround (in
this case, initializing a few bytes more) and move on. As far as vectorized
code in libcpp is concerned, a fix for this particular case is not needed
anymore. If all false positives are fixed in this manner — covering just one
case on just one architecture, when the original project already worked around
it — all it may amount to is accumulation of dead weight.

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