[Bug tree-optimization/32919] [4.3 Regression] SSA corruption because of abnormal edges and PRE

[drow at gcc dot gnu dot org]

------- Comment #4 from drow at gcc dot gnu dot org  2007-08-01 16:53 -------
Subject: Bug 32919

Author: drow
Date: Wed Aug  1 16:53:01 2007
New Revision: 127132

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127132
Log:
        PR tree-optimization/32919
        * tree-ssa-sccvn.c (visit_phi): Do not visit abnormal PHIs.
        * tree-ssa-coalesce.c (ssa_conflicts_dump): New.
        (coalesce_ssa_name): Call it.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr32919.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-coalesce.c
    trunk/gcc/tree-ssa-sccvn.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32919