--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to David Binderman from comment #0)
> Created attachment 39831 [details]
> C source code after creduce
> The attached C code, when compiled by gcc trunk dated 20161018,
> and compiler flags -O3 -march=native, does this:
BTW: Please note that -march=native gets replaced with true -march=... and a
bunch of -mABI options by the compiler driver.
You can see options, passed by the driver, by adding -### to the compiler
flags. Please report -march=... that is determined by the driver. Usually, this
is enough to reproduce the bug, for some unusual targets (e.g. emulators)
please also report other -m... options.
> The processor has this in /proc/cpuinfo
This info is useless and redundant when true -march= is reported.