This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/28187] [4.1/4.2 Regression] '-O2 -fwrapv' exhausts memory.
- 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: 5 Jul 2006 15:12:26 -0000
- Subject: [Bug tree-optimization/28187] [4.1/4.2 Regression] '-O2 -fwrapv' exhausts memory.
- References: <bug-28187-7667@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rguenth at gcc dot gnu dot org 2006-07-05 15:12 -------
Visiting statement:
window_6 = ASSERT_EXPR <window_1, window_1 < last_7>;
....
)
(res = scev_not_known))
Found new range for window_6: [-INF, last_7 + -1]
Simulating statement (from ssa_edges): last_50 = ASSERT_EXPR <last_7, window_6
< last_7>;
Visiting statement:
last_50 = ASSERT_EXPR <last_7, window_6 < last_7>;
....
(res = last_7))
Found new range for last_50: [window_6 + 1, +INF]
and over and over and over.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28187