[Bug c/62031] Different results between O2 and O3 for gcc-4.7.2-5 (Debian 4.7.2-5)

[mikpelinux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62031

Mikael Pettersson <mikpelinux at gmail dot com> changed:

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--- Comment #1 from Mikael Pettersson <mikpelinux at gmail dot com> ---
I can reproduce with 4.8.3 and 4.9.1.  -fsanitize={address,undefined} finds
nothing to complain about.