[Bug debug/46258] New: gcc.dg/tree-ssa/pr23820.c: -fcompare-debug failure with -O3 -ffloat-store

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46258

           Summary: gcc.dg/tree-ssa/pr23820.c: -fcompare-debug failure
                    with -O3 -ffloat-store
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz


Compiler output:
$ gcc -O3 -ffloat-store -fcompare-debug pr23820.i 
gcc: error: pr23820.i: -fcompare-debug failure

I wasn't able to reduce the testcase further.

Tested revisions:
r166105 - fail
r153685 - fail
r158095 - fail
r159696 - fail
4.5 r165781 - fail