[Bug rtl-optimization/37483] [4.4 Regression] Segfault in noce_try_sign_mask (ifcvt.c): b_unconditional

["nemet at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from nemet at gcc dot gnu dot org  2008-09-16 22:17 -------
Subject: Bug 37483

Author: nemet
Date: Tue Sep 16 22:15:49 2008
New Revision: 140403

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140403
Log:
        PR rtl-optimization/37483
        * ifcvt.c (noce_try_sign_mask): Use if_info->test_bb instead of
        if_info->insn_b's bb as argument to optimize_bb_for_speed_p.
        Rearrange code to better match the original comment.  Check
        t_unconditional first.  Improve comment.

testsuite/
        * gcc.c-torture/compile/pr37483.c: New test.
        * gcc.c-torture/compile/pr37395.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr37395.c
    trunk/gcc/testsuite/gcc.c-torture/compile/pr37483.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ifcvt.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37483