[Bug 1470030] perl-Test-LeakTrace-0.16-1.fc27 FTBFS: Failed test ' UninitCondition' on ppc64

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https://bugzilla.redhat.com/show_bug.cgi?id=1470030



--- Comment #6 from Florian Weimer <fweimer@xxxxxxxxxx> ---
(In reply to Mark Wielaard from comment #5)
> Florian, I guess I should dig into the ppc64 code and see why memcheck is
> not accurately tracking this. But since you recently touched this code is
> there any possibility this code really be an undefined memory usage?

The changes are supposed to be no-ops in this regard.

My first guess is that due to the strcmp changes for POWER, we now have a
dependency on uninitialized bytes due to word-wise memory accesses, but this
does not appear in strcmp itself for some reason, only in the caller which
looks at the computed result difference.

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