[Bug middle-end/58742] [4.7/4.8/4.9 Regression] pointer arithmetic simplification

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58742

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Oct 21 11:34:04 2013
New Revision: 203890

URL: http://gcc.gnu.org/viewcvs?rev=203890&root=gcc&view=rev
Log:
2013-10-21  Richard Biener  <rguent...@suse.de>

    PR middle-end/58742
    * fold-const.c (fold_binary_loc): Fold ((T) (X /[ex] C)) * C
    to (T) X for sign-changing conversions (or no conversion).

    * c-c++-common/fold-divmul-1.c: New testcase.

Added:
    trunk/gcc/testsuite/c-c++-common/fold-divmul-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog