[Bug tree-optimization/36978] [4.4 Regression] ICE in gimple_cond_set_lhs for -O2 -funswitch-loops after tuples merge

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2008-07-31 14:13 -------
Subject: Bug 36978

Author: rguenth
Date: Thu Jul 31 14:12:24 2008
New Revision: 138415

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138415
Log:
2008-07-31  Richard Guenther  <[EMAIL PROTECTED]>

        PR tree-optimization/36978
        * tree-ssa-loop-unswitch.c (tree_may_unswitch_on): Do not fold
        the generated condition.

        * gcc.dg/torture/pr36978.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr36978.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-unswitch.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36978