[Bug debug/46756] New: -fcompare-debug failure (length) with ASSIGN

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46756

           Summary: -fcompare-debug failure (length) with ASSIGN
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz
                CC: aol...@gcc.gnu.org
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 22592
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22592
reduced testcase (from 20010519-1.f)

Compiler output (-w is not needed):
$ gcc -O -fcompare-debug pr46756.f -w
gcc: error: pr46756.f: -fcompare-debug failure (length)
$ diff pr46756.*gkd
89c89,90
<         (nil)))
---
>         (nil))
>  -> 2)

Tested revisions:
r167331 - fail
4.5 r166509 - fail