[Bug tree-optimization/62031] [4.8 Regression] Different results between O2 and O2 -fpredictive-commoning

[clyon at gcc dot gnu.org]

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

--- Comment #13 from clyon at gcc dot gnu.org ---
To be more specific, I'm using qemu 2.0.0.

But I've switched to a new x86_64 host running Ubuntu-14.04, and the tests
pass.

I observed the failures when using a x86_64 host running Red-Hat 5.

And qemu-2.0.0 in both cases.

I am going to take a further look at the RHEL5 (I need to restart the builds
manually).