GCC Bugzilla Bug 20653

This error only seems to occur when "-O2 -march=k6-2 -ftracer" are used
together.  Removing -ftracer causes the error to go away.  This problem does not
seem to exist in the GCC4.0 branch.

i686-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -O20 -ffast-math
-D_REENTRANT -fsigned-char -march=k6-2 -ftracer -O2 -mno-sse2 -fPIC
-DUSE_MEMORY_H -MT psy.lo -MD -MP -MF .deps/psy.Tpo -c psy.c  -fPIC -DPIC -o
.libs/psy.o -save-temps
psy.s: Assembler messages:
psy.s:6581: Error: value of ffffffffffffff7f too large for field of 1 bytes at
0000000000000428


gcc -v
Reading specs from /usr/lib/gcc/i686-pc-linux-gnu/3.4.3-20050110/specs
Configured with: /var/tmp/portage/gcc-3.4.3.20050110-r1/work/gcc-3.4.3/configure
--enable-version-specific-runtime-libs --prefix=/usr
--bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.4.3-20050110
--includedir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.3-20050110/include
--datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.3-20050110
--mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.3-20050110/man
--infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.3-20050110/info
--with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.3-20050110/include/g++-v3
--host=i686-pc-linux-gnu --disable-altivec --enable-nls
--without-included-gettext --enable-__cxa_atexit --disable-sjlj-exceptions
--enable-clocale=gnu --with-system-zlib --disable-checking --disable-werror
--disable-libunwind-exceptions --disable-multilib --disable-libgcj
--enable-languages=c,c++ --enable-shared --enable-threads=posix
Thread model: posix
gcc version 3.4.3-20050110 (Gentoo Linux 3.4.3.20050110-r1,
ssp-3.4.3.20050110-0, pie-8.7.7)

Created an attachment (id=8461) [edit]
Preprocessed file for above failure

Confirmed, there might be a testcase for 4.0.0 which can reproduce this too but
I don't know of any.
Anyways the problem looks like not taking into counting some alignment or
something into the length 
so get the loop instruction but we should not.

Fixed for sure on the mainline for 4.1.0 by removal of the loop instruction:
2005-06-05  Steven Bosscher  <stevenb@suse.de>

        * config/i386/i386.c (x86_use_loop): Remove.
        * config/i386/i386.h (x86_use_loop): Remove extern decl.
        (TARGET_USE_LOOP): Remove.
        * config/i386/i386.md (doloop_end, doloop_end_internal): Remove.
        Also remove related define_splits.

*** Bug 25574 has been marked as a duplicate of this bug. ***

*** Bug 26856 has been marked as a duplicate of this bug. ***