[Bug tree-optimization/24575] -(i /10) is not foldded to i/-10

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2005-11-27 21:31 -------
Subject: Bug 24575

Author: pinskia
Date: Sun Nov 27 21:31:36 2005
New Revision: 107575

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=107575
Log:
2005-11-27  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/24575
        * fold-const.c (negate_expr_p): Add case for signed divides if overflow
        is undefined.
        (negate_expr): Likewise.
2005-11-27  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/24575
        * gcc.dg/tree-ssa/divide-3.c: New test.
        * gcc.dg/tree-ssa/divide-4.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/divide-3.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/divide-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24575