https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57832
--- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- Either there is no bug or the reduction is incorrect because the warning in the testcase is correct since d is uninitialized. Maybe the bug is that it warns about 'c' and not about 'd', but probably at the time of warning 'd' is long gone.
