https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65307
--- Comment #1 from madars+gccbug at gmail dot com --- I should clarify that the same behavior can be observed on Debian, Ubuntu and Fedora: gcc (Ubuntu 4.9.1-16ubuntu6) 4.9.1 gcc (Debian 4.9.1-19) 4.9.1 gcc (GCC) 4.9.2 20141101 (Red Hat 4.9.2-1) Moreover, Alex Chernyakhovsky reports that switching two() * 2 to two() + two() or two() << 1 produces correct results, so this seems to have to do with the handling of multiplication.
