[Bug target/60539] [SH] builtin string functions ignore loop and label alignment

[olegendo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60539

--- Comment #3 from Oleg Endo <olegendo at gcc dot gnu.org> ---
As mentioned here
http://gcc.gnu.org/ml/gcc-patches/2014-03/msg01692.html:

> IMHO the problem is with the
> non-aligned loop stems from to the generic alignment code in final.c.

> Further tuning of static branch estimations, or tuning of the LOOP_ALIGN
> macro is needed.

This PR is about the fact that loops expanded by builtins don't get the loop
labels aligned automatically.  It just happens that on SH we have only the
strlen-like builtins so far that expand loops.