在 2019/1/18 16:52, Richard Biener 写道:
On Fri, Jan 18, 2019 at 4:11 AM Li Kun <hw.li...@huawei.com> wrote:
I need to known which rtx is expanded from a specific CALL_EXPR, how
could i do ?
Is INSN_LOCATION accurate enough ?
No. There's no accurate way to do this so you have to invent something.
Or start by explaining what you are wanting to do.
I'm trying to implement safestack as an pass after expand, so i have to
known where the
args are lying if the composite struct param passed by reference, and i
could move the arg to unsafe region.
I try to not interfere the procedure of expand_call, but i can't get the
accurate informations.
What i'm thinking about is to get the rtxs of CALL_EXPR, and to locate
the args reversely.
So is there any better way to make it ?
Thanks a lot!
Richard.
--
Best Regards
Li Kun
--
Best Regards
Li Kun
