[Bug tree-optimization/30052] [4.2/4.3 Regression] points-to analysis slow and memory hungry
------- Comment #43 from dberlin at gcc dot gnu dot org 2007-07-26 18:03 -------
On my current branch, which i will commit soon, i have
tree PTA : 14.56 ( 1%) usr 0.57 ( 1%) sys 16.98 ( 1%) wall
26372 kB ( 2%) ggc
tree alias analysis : 577.90 (26%) usr 8.72 ( 8%) sys 611.13 (24%) wall
108272 kB ( 7%) ggc
I have looked through this bug report again, I also don't see PTA taking up
your memory.
(Alias analysis i will try to fix, but it's a bit tricky)
What is happening is the memory is increasing slowly. It's not like PTA is
suddenly allocating 1.5 gig.
So your memory usage is not coming from PTA (at least, not in a way I can
solve, unless you see a leak somewhere).
It is much more likely someone is leaking memory.
In short I have absolutely no plans to work on the memory hog portion of this
bug, and deny that points-to analysis is "memory hungry" in 4.3 because i don't
see it.
--
dberlin at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|memory-hog |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30052
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