[Bug c/23196] New: ICE instantiate_virtual_regs_in_insn when -fforce-addr used

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

# gcc -v
Using built-in specs.
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/gcc-4.1.0_beta20050730/work/gcc-4.1-20050730/configure
--enable-version-specific-runtime-libs --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.1.0-beta20050730
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.0-beta20050730/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.0-beta20050730
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.0-beta20050730/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.1.0-beta20050730/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.1.0-beta20050730/include/g++-v4
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec
--enable-nls --without-included-gettext --with-system-zlib --disable-checking
--disable-werror --disable-libunwind-exceptions --enable-multilib
--disable-libgcj --enable-languages=c,c++,f95 --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 4.1.0 20050730 (experimental)

 # gcc -march=athlon64 -O1 -fforce-addr    -c /tmp/j1.c
rlogin.c: In function 'do_rlogin':
rlogin.c:181: error: unrecognizable insn:
(insn 116 187 118 13 (parallel [
            (set (mem/s/j:SI (reg/f:DI 102) [0 termio.c_iflag+0 S4 A64])
                (ior:SI (mem/s/j:SI (reg/f:DI 103) [0 termio.c_iflag+0 S4 A64])
                    (const_int 1280 [0x500])))
            (clobber (reg:CC 17 flags))
        ]) -1 (nil)
    (nil))
rlogin.c:181: internal compiler error: in instantiate_virtual_regs_in_insn, at
function.c:1539

j1.c will be attached.  (It's a preprocessed rlogin.c from the "shadow" package)

-- 
           Summary: ICE instantiate_virtual_regs_in_insn when -fforce-addr
                    used
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zlynx at acm dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23196