[Bug tree-optimization/70032] New: tree-ssa-tail-merge engine replacement

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70032

            Bug ID: 70032
           Summary: tree-ssa-tail-merge engine replacement
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

https://gcc.gnu.org/ml/gcc-patches/2015-07/msg00755.html :
...
Hello.

It's going to be almost a year Richard advised me to utilize IPA ICF
infrastructure in tree-ssa-tail-merge, currently using value numbering which
is quite hard to maintain.
Following small patch set is kick-off and I am opened for advices. Meanwhile,
I'm going to send statistics about merged basic blocks before/after the patch
set.

Patch set can bootstrap on x86_64-linux-pc and survives regression tests.

Thanks,
Martin
...