[Bug middle-end/27743] [4.1/4.2 Regression] Wrong code for ((unsigned) ((a) >> 2)) >> 15

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2006-05-25 12:40 -------
Subject: Bug 27743

Author: rguenth
Date: Thu May 25 12:39:52 2006
New Revision: 114112

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114112
Log:
2006-05-25  Richard Guenther  <rguenther@suse.de>

        PR middle-end/27743
        * fold-const.c (fold_binary): Do not look at the stripped
        op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.

        * gcc.dg/torture/pr27743.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr27743.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27743