[Bug c/51730] [4.7 Regression] autoconf 2.60 through 2.67 stdbool.h check fails with GCC 4.7

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51730

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-03 
08:59:26 UTC ---
Author: rguenth
Date: Tue Jan  3 08:59:21 2012
New Revision: 182830

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182830
Log:
2012-01-03  Richard Guenther  <rguent...@suse.de>

    PR middle-end/51730
    * fold-const.c (fold_comparison): Properly canonicalize
    tree offset and HOST_WIDE_INT bit position.

    * gcc.dg/fold-compare-6.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/fold-compare-6.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog