[Bug tree-optimization/101555] Compile slowdown in tree PRE

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101555

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[12 Regression] Compile     |Compile slowdown in tree
                   |slowdown in tree PRE        |PRE
   Target Milestone|12.0                        |---
           Keywords|needs-bisection             |

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Meanwhile GCC 12 seems to be as fast as GCC 11 (again).

Still PRE is slow, in this case the profile seems to be mostly alias walk
related.