On 07/16/2009 01:47 AM, Makoto Fujiwara wrote:
Could anyone suggest me which part of the src is taking care
of above save/restore processing ?
calls.c
function.c -> expand_function_{start,end}()
caller-save.c -> save_call_clobbered_regs()
reload1.c
or others ?
I believe it should be in function.c, but I can not figure out
which lines (function) to take care those things.
(or the explanation in info is obsolete ?)
This saving and restoring is *not* handled in generic parts of the
compiler. It is handled by the prologue and epilogue patterns in your
cpu.md file -- or, normally, by a functions in your cpu.c file, which is
invoked by the md patterns.
Look at gcc/config/moxie/moxie.c, moxie_expand_prologue; that's probably
the simplest port within gcc at present.
r~
