[linaro/gcc-4_8-branch] Backports from trunk

[Christophe Lyon]

Hi,

I have just committed backports of the following revisions from trunk
to linaro/gcc-4_8-branch:

r199694 as r200524
r199533 as r200528
r200061 as r200529
r200148 as r200530
r200152 as r200533.

Thanks,

Christophe.