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[Bug middle-end/35204] [4.3 Regression] crash by too deep recursion in DFS tree-ssa-sccvn.c:1898
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Feb 2008 12:51:43 -0000
- Subject: [Bug middle-end/35204] [4.3 Regression] crash by too deep recursion in DFS tree-ssa-sccvn.c:1898
- References: <bug-35204-3760@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #19 from rguenth at gcc dot gnu dot org 2008-02-16 12:51 -------
Note that while it definitely improves stack usage, the total memory usage is
likely to go up (vectors allocate some extra heap, the iters are now
addressable
and thus consume full memory) and as the ssa_op_iter is now pinned to memory
it is likely the algorithm is slower as well.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35204