[Bug rtl-optimization/20450] New: ICE in postreload-gcse

[mustafa at il dot ibm dot com]

postreload-gcse ICEs when trying to generate an illegal move insn between
registers. This happens when compiling vpr on G5 with -fprofile-generate
(gcc -O3 -fprofile-generate -mcpu=G5). I made a smaller test-case that causes 
the same failure.  
compiling the following code with

-- 
           Summary: ICE in postreload-gcse
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: rtl-optimization
        AssignedTo: mustafa at il dot ibm dot com
        ReportedBy: mustafa at il dot ibm dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: powerpc-apple-darwin7.6.0
  GCC host triplet: powerpc-apple-darwin7.6.0
GCC target triplet: powerpc-apple-darwin7.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20450