[Bug tree-optimization/53805] combine_comparisons changes trapping behavior

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53805

--- Comment #10 from Marc Glisse <glisse at gcc dot gnu.org> 2012-08-02 
19:54:47 UTC ---
Author: glisse
Date: Thu Aug  2 19:54:43 2012
New Revision: 190100

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190100
Log:
2012-08-02  Marc Glisse  <marc.gli...@inria.fr>

    PR tree-optimization/53805
    * gcc/fold-const.c (invert_tree_comparison): Invert ORDERED_EXPR and
    UNORDERED_EXPR even for trapping floating point.
    * gcc/testsuite/gcc.dg/fold-notunord.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/fold-notunord.c   (with props)
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog

Propchange: trunk/gcc/testsuite/gcc.dg/fold-notunord.c
            ('svn:eol-style' added)

Propchange: trunk/gcc/testsuite/gcc.dg/fold-notunord.c
            ('svn:keywords' added)