https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71691
Jeffrey A. Law <law at redhat dot com> changed:
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CC| |law at redhat dot com
--- Comment #7 from Jeffrey A. Law <law at redhat dot com> ---
Damn interesting test.
I really wonder if what uncprop is doing is valid.
Essentially if i_48 has a potentially undefined value, but there are no paths
where its used undefined, then we're OK. Uncprop comes along and introduces a
use of i_48 on a path where it didn't exist before, now causing us to use the
uninitialized value. And boom.
And note this is a potential issue for all the transformations made by uncprop.
