[Bug c/53327] New: Invalid ASM being generated

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53327

             Bug #: 53327
           Summary: Invalid ASM being generated
    Classification: Unclassified
           Product: gcc
           Version: 4.4.6
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: bugzilla-gcc@thewrittenword.com


Created attachment 27380
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27380
Problematic C source file

We have a 64-bit build of GCC 4.4.6 on hppa64-hp-hpux11.31 that, when compiling
a particular .c file, is returning an "Invalid operands" error:
  % /opt/TWWfsw/gcc64-44/bin/gcc -v
  Reading specs from /opt/TWWfsw/gcc64-44/lib/gcc/hppa64-hp-hpux11.31/4.4/specs
  Target: hppa64-hp-hpux11.31
  Configured with: /opt/build/gcc-4.4.6/configure --with-included-gettext
--enable-shared --with-gnu-as
--with-as=/opt/TWWfsw/gcc64-44/hppa64-hp-hpux11.31/bin/as
--with-gmp-include=/opt/TWWfsw/libgmp43/include
--with-gmp-lib=/opt/TWWfsw/libgmp43/lib/pa20_64
--with-mpfr-include=/opt/TWWfsw/libmpfr30/include
--with-mpfr-lib=/opt/TWWfsw/libmpfr30/lib/pa20_64
--with-gmp-ldflags=-Wl,+s,+b,/opt/TWWfsw/libgmp43/lib/pa20_64
--with-mpfr-ldflags=-Wl,+s,+b,/opt/TWWfsw/libmpfr30/lib/pa20_64
--datadir=/opt/TWWfsw/gcc64-44/share --with-x --enable-java-awt=xlib
--build=hppa64-hp-hpux11.31 --host=hppa64-hp-hpux11.31
--with-local-prefix=/opt/TWWfsw/gcc64-44
--with-gxx-include-dir=/opt/TWWfsw/gcc64-44/include/c++
--prefix=/opt/TWWfsw/gcc64-44
  Thread model: posix

  % /opt/TWWfsw/gcc64-44/bin/gcc -O2 -c a.c  
  /var/tmp//cc8ArhN4.s: Assembler messages:
  /var/tmp//cc8ArhN4.s:30: Error: Invalid operands