[Bug tree-optimization/28187] [4.1/4.2 Regression] '-O2 -fwrapv' exhausts memory.

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2006-07-07 12:32 -------
Subject: Bug 28187

Author: rguenth
Date: Fri Jul  7 12:31:29 2006
New Revision: 115255

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115255
Log:
2006-07-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/28187
        * tree-vrp.c (vrp_operand_equal_p): New function.
        (vrp_bitmap_equal_p): Likewise.
        (update_value_range): Use them to compare old and new
        max and min values.

        * gcc.dg/pr28187.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/pr28187.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28187