[Bug tree-optimization/68031] [6 Regression] cc1 crashes when compiling newlib / mktm_r.c

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68031

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Oct 21 08:08:05 2015
New Revision: 229118

URL: https://gcc.gnu.org/viewcvs?rev=229118&root=gcc&view=rev
Log:
2015-10-21  Richard Biener  <rguent...@suse.de>

        PR middle-end/68031
        * fold-const.c: Include tree-ssa-operands.h and tree-into-ssa.h.
        (tree_ssa_name_nonnegative_warnv_p): Fold into ...
        (tree_single_nonnegative_warnv_p): ... here.  For SSA names
        make sure they are not registered for update.

        * gcc.dg/torture/pr68031.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr68031.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog