[Bug c/59863] const array in function is placed on stack

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59863

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
This is also simply a gimplification issue.  For larger arrays we initialize
the stack with an aggregate copy from the constant pool.