gcc -Wp,-MD,init/.main.o.d -nostdinc -iwithprefix include -D__KERNEL__ 
-Iinclude  -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing 
-fno-common -ffreestanding -std=gnu89 -O2     -fomit-frame-pointer -pipe 
-msoft-float -mpreferred-stack-boundary=2 -march=pentium3 
-Iinclude/asm-i386/mach-default -Wdeclaration-after-statement    
-DKBUILD_BASENAME=main -DKBUILD_MODNAME=main -c -o init/.tmp_main.o 
init/main.c 
init/main.c: In function `unknown_bootoption': 
include/asm/string.h:190: error: `asm' operand requires impossible reload 
include/asm/string.h:190: error: `asm' operand requires impossible reload 
include/asm/string.h:129: error: `asm' operand requires impossible reload 
init/main.c:197: error: insn does not satisfy its constraints: 
(insn 611 481 200 5 (set (reg:SI 1 dx) 
        (reg/v/f:SI 22 xmm1 [orig:89 s ] [89])) 36 {*movsi_1} (nil) 
    (nil)) 
init/main.c:197: confused by earlier errors, bailing out 
make[1]: *** [init/main.o] Error 1 
make: *** [init] Error 2 
 
 
Works with any of -march=i386, -march=i586, -march=i686, -march=pentium4, 
-march=athlon

-- 
           Summary: -march=pentium3 breaks linux kernel compiles w/ gcc-3_4-
                    branch as of 2004/12/20
           Product: gcc
           Version: 3.4.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bero at arklinux dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-ark-linux
  GCC host triplet: i686-ark-linux
GCC target triplet: i686-ark-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19102

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