[Bug other/26856] New: compilation errors in mesa and xorg-server with -march=k6-3

["agathos at fobos dot org" <gcc-bugzilla at gcc dot gnu dot org>]

When compiling mesa and xorg-server (in the same file in fact) and using
-march=k6-3 I got an assembly error, that not occurs if using (for proximity to
my type of cpu) -march=pentium-mmx
I've got the same error also in two other packages: imagemagick and sdl_image.

Steps to reproduce:
------------------
1) compile the Mesa-6.4.2/src/mesa/main/texcompress_fxt1.c with the following
comand line:
gcc -c -I../../include -I../../src/mesa -I../../src/mesa/main
-I../../src/mesa/glapi -I../../src/mesa/math -I../../src/mesa/tnl
-I../../src/mesa/shader -I../../src/mesa/shader/grammar
-I../../src/mesa/shader/slang -I../../src/mesa/shader/slang/OSDependent/Linux
-I../../src/mesa/shader/slang/OGLCompilersDLL -I../../src/mesa/swrast
-I../../src/mesa/swrast_setup -Wall -O2 -march=k6-3 -fomit-frame-pointer -pipe
-fPIC -m32 -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE
-D_BSD_SOURCE -D_GNU_SOURCE -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1
-DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DHAVE_ALIAS
-DDEFAULT_DRIVER_DIR='"/usr/lib/xorg/modules/dri"' -DUSE_X86_ASM -DUSE_MMX_ASM
-DUSE_3DNOW_ASM -DUSE_SSE_ASM -std=c99 -ffast-math  main/texcompress_fxt1.c -o
main/texcompress_fxt1.o -Wall

Results:
-------
The output of the compiler is
{entrada estándar}: Mensajes del ensamblador:
{entrada estándar}:1385: Error: el valor de ffffffffffffff7e es demasiado
grande para el campo de 1 bytes en 00000000000010d5

The english translation I think is like:
 {standard input}: Assembler messages:
 {standard input}:1385: Error: value of ffffffffffffff7e too large for field of
1 bytes at 00000000000010d5

Build Date & Platform:
---------------------
2006-03-24
Linux (kernel 2.6.15-gentoo-r1 )
i586 AMD-K6-III(tm) 3D+ Processor


-- 
           Summary: compilation errors in mesa and xorg-server with -
                    march=k6-3
           Product: gcc
           Version: 3.4.5
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: agathos at fobos dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26856