[Bug middle-end/42512] [4.5 Regression] integer wrong code bug with loop

[rguenth at gcc dot gnu dot org]

------- Comment #12 from rguenth at gcc dot gnu dot org  2010-01-09 12:04 -------
Subject: Bug 42512

Author: rguenth
Date: Sat Jan  9 12:04:17 2010
New Revision: 155757

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155757
Log:
2010-01-09  Richard Guenther  <rguenther@suse.de>

        PR middle-end/42512
        * tree-scalar-evolution.c (interpret_loop_phi): Make sure
        the evolution is compatible with the initial condition.

        * gcc.c-torture/execute/pr42512.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr42512.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-scalar-evolution.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42512