[Bug tree-optimization/110218] sink pass heuristic not working in practice

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110218

Richard Biener  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Richard Biener  ---
This was fixed largely with r15-518-g99b1daae18c095 and r15-815-g5b9b3bae33cae7

[Bug tree-optimization/110218] sink pass heuristic not working in practice

[law at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110218

--- Comment #2 from Jeffrey A. Law  ---
So what I think was happening was that we would sink past a bunch of
conditionals that were never going to be true thinking that we were moving to a
deeper control nest.  So the idea was to use the frequency information to avoid
movements that weren't likely to improve anything.

I don't remember how I selected the param's value though.  I've got no
objection to adjusting how this works.

[Bug tree-optimization/110218] sink pass heuristic not working in practice

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110218

Richard Biener  changed:

   What|Removed |Added

 CC||law at gcc dot gnu.org

--- Comment #1 from Richard Biener  ---
PR110215 motivated me to file this, but this heuristic has seen to causing
issues elsewhere as well.