[Bug target/18563] New: ICE: output_operand: invalid expression as operand

["corsepiu at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

ICE with -O1 or greater, -O0 does not ICE

# avr-rtems4.7-gcc -O4 -o cpuboot.o -c cpuboot.c
cpuboot.c: In function `boot_phase_1':
cpuboot.c:8: internal compiler error: output_operand: invalid expression as operand
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

# avr-rtems4.7-gcc --version
avr-rtems4.7-gcc (GCC) 3.4.4 20041114 (prerelease)

This PR has been split out from
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18542

-- 
           Summary: ICE: output_operand: invalid expression as operand
           Product: gcc
           Version: 3.4.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: corsepiu at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: avr-rtems*, avr-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18563