[Bug tree-optimization/39657] [4.3 Regression] compiling ruby (yacc) output takes inordinate amount of time on x86 with -O2

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-04-06 09:39 -------
 tree PRE              : 362.75 (97%) usr   3.30 (80%) sys 366.55 (97%) wall   
7515 kB ( 8%) ggc

So you can use -fno-tree-pre to work around this issue or limit the size
of the SCCs processed (with the same effect) with the --param
sccvn-max-scc-size


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|pending                     |tree-optimization
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-04-06 09:39:39
               date|                            |
   Target Milestone|---                         |4.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39657