r211988 - in /trunk/gcc: ChangeLog testsuite/Ch...

[edlinger@gcc.gnu.org]

Author: edlinger
Date: Wed Jun 25 17:24:34 2014
New Revision: 211988

URL: https://gcc.gnu.org/viewcvs?rev=211988&root=gcc&view=rev
Log:
2014-06-25  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * tree-ssa-forwprop.c (associate_plusminus): For widening conversions
        check for undefined overflow in (T)(P + A) - (T)P -> (T)A.
        Issue a strict overflow warning if appropriate.

testsuite:
2014-06-25  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * gcc.c-torture/execute/20140622-1.c: New test.


Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/20140622-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c