http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49104
Summary: bootstrap failure on AMD K6-2 with illegal instruction
(cmove) in stage2
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: r...@gmx.de
I get the error in 4.6.0 and 4.6-20110520. 4.5.3 is fine.
$ ../gcc-4.6-20110520/configure --prefix=/usr/pkg/gcc-4.6 \
--enable-languages=c --disable-nls --disable-multilib --disable-lto \
--enable-checking=release --with-system-zlib
$ make bootstrap
...
Configuring stage 2 in i586-pc-linux-gnu/libgcc
configure: creating cache ./config.cache
checking for --enable-version-specific-runtime-libs... no
checking for a BSD-compatible install... /usr/bin/install -c
checking for gawk... gawk
checking build system type... i586-pc-linux-gnu
checking host system type... i586-pc-linux-gnu
checking for i586-pc-linux-gnu-ar... ar
checking for i586-pc-linux-gnu-lipo... lipo
checking for i586-pc-linux-gnu-nm... /home/rf11/src/build1/./gcc/nm
checking for i586-pc-linux-gnu-ranlib... ranlib
checking for i586-pc-linux-gnu-strip... strip
checking whether ln -s works... yes
checking for i586-pc-linux-gnu-gcc... /home/rf11/src/build1/./gcc/xgcc
-B/home/rf11/src/build1/./gcc/ -B/usr/pkg/gcc-4.6/i586-pc-linux-gnu/bin/
-B/usr/pkg/gcc-4.6/i586-pc-linux-gnu/lib/ -isystem
/usr/pkg/gcc-4.6/i586-pc-linux-gnu/include -isystem
/usr/pkg/gcc-4.6/i586-pc-linux-gnu/sys-include
checking for suffix of object files... configure: error: in
`/home/rf11/src/build1/i586-pc-linux-gnu/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
make[2]: *** [configure-stage2-target-libgcc] Error 1
make[2]: Leaving directory `/home/rf11/src/build1'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/home/rf11/src/build1'
make: *** [bootstrap] Error 2
from ./i586-pc-linux-gnu/libgcc/config.log:
configure:3268: /home/rf11/src/build1/./gcc/xgcc -B/home/rf11/src/build1/./gcc/
-B/usr/pkg/gcc-4.6/i586-pc-linux-gnu/bin/
-B/usr/pkg/gcc-4.6/i586-pc-linux-gnu/lib/ -isystem
/usr/pkg/gcc-4.6/i586-pc-linux-gnu/include -isystem
/usr/pkg/gcc-4.6/i586-pc-linux-gnu/sys-include -c -g -O2 conftest.c >&5
xgcc: internal compiler error: Illegal instruction (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
configure:3272: $? = 4
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/";
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:3286: error: in `/home/rf11/src/build1/i586-pc-linux-gnu/libgcc':
configure:3289: error: cannot compute suffix of object files: cannot compile
The illegal insn is at the end of init_vectorized_lexer() in cc1:
Program received signal SIGILL, Illegal instruction.
0x086f977c in init_vectorized_lexer ()
(gdb) disas init_vectorized_lexer
...
0x086f9745 <init_vectorized_lexer+101>: cpuid
0x086f9747 <init_vectorized_lexer+103>: test %eax,%eax
0x086f9749 <init_vectorized_lexer+105>: je 0x86f96fa
<init_vectorized_lexer+26>
0x086f974b <init_vectorized_lexer+107>: mov $0x1,%eax
0x086f9750 <init_vectorized_lexer+112>: mov $0x86f65b0,%esi
0x086f9755 <init_vectorized_lexer+117>: cpuid
0x086f9757 <init_vectorized_lexer+119>: and $0x100000,%ecx
0x086f975d <init_vectorized_lexer+125>: jne 0x86f973a
<init_vectorized_lexer+90>
0x086f975f <init_vectorized_lexer+127>: mov $0x86f6530,%esi
0x086f9764 <init_vectorized_lexer+132>: test $0x4000000,%edx
0x086f976a <init_vectorized_lexer+138>: jne 0x86f973a
<init_vectorized_lexer+90>
0x086f976c <init_vectorized_lexer+140>: mov $0x86f64c0,%esi
0x086f9771 <init_vectorized_lexer+145>: mov $0x86f6060,%eax
0x086f9776 <init_vectorized_lexer+150>: and $0x2000000,%edx
0x086f977c <init_vectorized_lexer+156>: cmove %eax,%esi
0x086f977f <init_vectorized_lexer+159>: jmp 0x86f973a
<init_vectorized_lexer+90>
$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 8
model name : AMD-K6(tm) 3D processor
stepping : 12
cpu MHz : 400.922
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr cx8 pge mmx syscall 3dnow k6_mtrr
bogomips : 801.84
clflush size : 32
cache_alignment : 32
address sizes : 32 bits physical, 32 bits virtual
Reinhard
