------- Comment #7 from nomura at netapp dot com 2006-05-09 01:35 -------
Reproduced with the x86_64-redhat-linux gcc from RHEL4:
Red Hat Enterprise Linux WS release 4 (Nahant Update 1)
Linux nahant.eng.netapp.com 2.6.9-11.ELsmp #1 SMP Fri May 20 18:25:30 EDT 2005
x86_64 x86_64 x86_64 GNU/Linux
void foo(int addr)
{
unsigned char * u8p;
unsigned char prefix_in_octet;
int num_octets_to_zero;
if (prefix_in_octet != 0)
u8p++;
num_octets_to_zero = u8p - (unsigned char *) &addr;
bar (u8p, num_octets_to_zero);
}
[nahant]$ /usr/bin/gcc -v
Reading specs from /usr/lib/gcc/x86_64-redhat-linux/3.4.3/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk --host=x86_64-redhat-linux
Thread model: posix
gcc version 3.4.3 20050227 (Red Hat 3.4.3-22.1)
[nahant]$ /usr/bin/gcc -c -O1 -fno-omit-frame-pointer bug2.c
bug2.c: In function `foo':
bug2.c:13: error: unrecognizable insn:
(insn 39 19 38 0 (set (reg:SI 0 ax [63])
(subreg:SI (plus:DI (subreg:DI (reg:SI 6 bp) 0)
(const_int -4 [0xfffffffffffffffc])) 0)) -1 (nil)
(nil))
bug2.c:13: internal compiler error: in extract_insn, at recog.c:2083
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccsKofpQ.out file, please attach this to
your bugreport.
[nahant]$
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24484
