On 2/20/21 9:15 AM, Shuai Wang wrote:
Thank you very much! Just a follow-up question regarding IPA.
Currently I can follow the tree-profile.c sample to perform IPA. However, my
analysis is limited to all functions within one .c file. Is it possible for me
to do cross- .c file analysis? That is, suppose there is a function foo in
source1.c called function bar in source2.c. How can I cross analyze foo then
bar?
Hello.
Then you will need a write a proper IPA pass:
https://gcc.gnu.org/onlinedocs/gccint/IPA.html#IPA
or for testing purpose you can use -flto -flto-partition=one
Martin
Thank you!
Best,
Shuai
On Wed, Feb 17, 2021 at 4:04 PM Martin Liška <mli...@suse.cz
<mailto:mli...@suse.cz>> wrote:
On 2/17/21 5:21 AM, Shuai Wang via Gcc wrote:
> Could anyone shed some light on this? Thank you very much!
Hello.
I would recommend looking at any of the existing passes:
$ git grep SIMPLE_IPA_PASS
...
One reasonable example can be gcc/tree-profile.c.
Cheers,
Martin
