[Bug middle-end/46176] profile feedback causes 20% linux kernel binary growth

2014-09-26 Thread andi-gcc at firstfloor dot org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46176 Andi Kleen changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug middle-end/46176] profile feedback causes 20% linux kernel binary growth

2010-10-26 Thread andi-gcc at firstfloor dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46176 --- Comment #3 from Andi Kleen 2010-10-26 10:28:34 UTC --- Interesting tidbit: the file containing r600_kms_blit_copy -- which grew most -- didn't get any profile feedback during training, there was no data file. I generated lists and cgraph ipa

[Bug middle-end/46176] profile feedback causes 20% linux kernel binary growth

2010-10-26 Thread andi-gcc at firstfloor dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46176 --- Comment #2 from Andi Kleen 2010-10-26 08:01:01 UTC --- Thanks. Unrolling seems to be part of it, but not all. I rebuilt/retrained with -fno-unroll-loops Trained: textdata bss dec hex filename 127744891198572 13576

[Bug middle-end/46176] profile feedback causes 20% linux kernel binary growth

2010-10-25 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46176 --- Comment #1 from Andrew Pinski 2010-10-25 22:57:50 UTC --- I think this is unrolling. -fprofile-generate/-fprofile-use turns on unrolling.