https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
Richard Biener changed:
What|Removed |Added
Keywords||compile-time-hog, deferred,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #10 from rguenther at suse dot de ---
On Wed, 28 Nov 2018, hubicka at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
>
> --- Comment #9 from Jan Hubicka ---
> We still have:
>/* When not generating
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #9 from Jan Hubicka ---
We still have:
/* When not generating debug info we can eliminate info on unused
variables. */
else if (!flag_auto_profile &&
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #8 from rguenther at suse dot de ---
On November 27, 2018 12:01:03 PM GMT+01:00, "hubicka at gcc dot gnu.org"
wrote:
>https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
>
>--- Comment #7 from Jan Hubicka ---
>Hi,
>ltrans files are 1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #7 from Jan Hubicka ---
Hi,
ltrans files are 1374K without and 1339K with patch.
WPA report without patch:
[WPA] read 13690507 SCCs of average size 1.397311
[WPA] 19129895 tree bodies read in total
[WPA] tree SCC table: size 4194301,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #6 from Jan Hubicka ---
>
> Honza - can you test the effect of this patch please?
Thanks! I am just redoing the tests (rebuilding firefoxes with updated
tree), so i will do that today or tomorrow.
Honza
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #5 from Richard Biener ---
Created attachment 45092
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45092&action=edit
better patch
This is a less hacky approach mimicking TREE_DIEs. It elides BLOCK
BLOCK_ABSTRACT_ORIGIN if that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #4 from Richard Biener ---
OK, I'd rather not put this hack on trunk. Iff then a very limited scope
TREE_DIE (same cases as the hack) should be brought in.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #3 from Jan Hubicka ---
Thanks, I will give it a try. Note that the numbers I posted are from trunk
and trunk with abstract origin streaming disabled. Thanks to the type
streaming reorg we do not have overall regression relative to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
--- Comment #2 from Richard Biener ---
Created attachment 44995
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44995&action=edit
untested patch
It's surprisingly difficult to hack around things ... but the attached at least
survives lto.ex
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87988
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
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