[Bug debug/41371] [4.5/4.6 Regression] var-tracking is slow and memory hungry

[rguenth at gcc dot gnu dot org]

------- Comment #23 from rguenth at gcc dot gnu dot org  2010-05-16 10:49 -------
I see

 variable tracking     : 734.06 (99%) usr   0.33 (35%) sys 735.29 (99%) wall  
11548 kB ( 8%) ggc
...

743.18user 1.00system 12:25.12elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+10440outputs (0major+116553minor)pagefaults 0swaps

for bug90.cc at -O2 -g with 4.5 branch r158342.

Which is a 6800% regression over 4.4.3:

10.88user 0.62system 0:12.64elapsed 90%CPU (0avgtext+0avgdata 0maxresident)k
18664inputs+5096outputs (106major+55648minor)pagefaults 0swaps


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P1                          |P2
   Last reconfirmed|2009-10-18 18:00:22         |2010-05-16 10:49:29
               date|                            |
            Summary|[4.5 Regression] var-       |[4.5/4.6 Regression] var-
                   |tracking is slow and memory |tracking is slow and memory
                   |hungry                      |hungry
   Target Milestone|4.5.0                       |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41371