[Bug tree-optimization/40062] [4.3/4.4/4.5 Regression] high memory usage and compile time in SCEV cprop with -O3

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2009-05-08 12:28 -------
Subject: Bug 40062

Author: rguenth
Date: Fri May  8 12:28:01 2009
New Revision: 147284

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147284
Log:
2009-05-08  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/40062
        * tree-scalar-evolution.c (follow_ssa_edge_in_condition_phi):
        Avoid exponential behavior.

Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/tree-scalar-evolution.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40062