[Bug tree-optimization/59245] [4.9 Regression] ICE on valid code at -O3 on x86_64-linux-gnu in set_value_range, at tree-vrp.c:443

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59245

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 26 15:14:52 2013
New Revision: 205395

URL: http://gcc.gnu.org/viewcvs?rev=205395&root=gcc&view=rev
Log:
2013-11-26  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/59245
    * tree-vrp.c (set_value_range): Assert that we don't have
    overflowed constants (but our infinities).
    (set_value_range_to_value): Drop all overflow flags.
    (vrp_visit_phi_node): Likewise.
    (vrp_visit_assignment_or_call): Use set_value_range_to_value
    to set a constant range.

    * gcc.dg/torture/pr59245.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr59245.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c