[Bug tree-optimization/38984] [4.2/4.3/4.4 Regression] NULL pointers always considered distinct by PTA, even with -fno-delete-null-pointer-checks

[bonzini at gcc dot gnu dot org]

------- Comment #10 from bonzini at gnu dot org  2009-01-28 08:02 -------
Subject: Bug 38984

Author: bonzini
Date: Wed Jan 28 08:02:31 2009
New Revision: 143721

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143721
Log:
gcc:
2009-01-28  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/38984
        * tree-ssa-structalias.c (get_constraints_for_1): Do not use
        the nothing_id variable if -fno-delete-null-pointer-checks.

gcc/testsuite:
2009-01-28  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/38984
        * gcc.dg/pr38984.c: New XFAILed testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/pr38984.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-structalias.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38984