[Bug tree-optimization/20216] [4.0/4.1 Regression] Simple loop runs out of stack at -O1

dberlin at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Sun Feb 27 08:45:00 GMT 2005


------- Additional Comments From dberlin at gcc dot gnu dot org  2005-02-26 19:20 -------
The first part of the patch seems fine.
We should make tree_fold_binomial non-recursive.
Note, however, that once you do that, the other part of the patch isn't actually
doing anything (the change to chrec_apply).

Then all the memory usage comes from fold (all 600 meg of memory usage, i mean)
creating new trees.
It also doesn't recurse int hat case.

In any case, limiting the input to chrec_apply to <1024 is uh, wrong, as it's
not really fixing anything.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20216



More information about the Gcc-bugs mailing list