[Bug tree-optimization/33237] New: Tree memory partitioning is spending 430 seconds of a 490 second compile.

["bergner at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

The tree memory partitioning phase is spending 430 seconds of a 490 second
compile which seems a little excessive. The test case is a slightly modified
version of another test case within bugzilla (I forget which one) but with some
syntax warning cleaned up. I'm using GCC mainline revision 127398. I'll attach
the test case in the next post. The relevant parts of the -ftime-report output
looks like:

gcc -O1 -S -ftime-report syntax-case.i

Execution times (seconds)
[snip]
 tree memory partitioning: 433.26 (88%) usr   0.03 ( 1%) sys 433.29 (87%) wall 
     0 kB ( 0%) ggc
[snip]
 TOTAL                 : 491.34             4.19           495.53            
199506 kB


-- 
           Summary: Tree memory partitioning is spending 430 seconds of a
                    490 second compile.
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bergner at gcc dot gnu dot org
 GCC build triplet: powerpc64-linux
  GCC host triplet: powerpc64-linux
GCC target triplet: powerpc64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33237