Re: [Qemu-devel] Error during compilation

[Thomas Schwinge]

On Tue, Mar 15, 2005 at 07:57:55AM -0800, Peter Federighi wrote:
> gcc -Wall -O2 -g -fno-strict-aliasing -fomit-frame-pointer -I.
> -I/usr/src/qemu-0.6.1/target-i386 -I/usr/src/qemu-0.6.1 -D_GNU_SOURCE
> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I/usr/src/qemu-0.6.1/slirp -c
> -o helper.o /usr/src/qemu-0.6.1/target-i386/helper.c
> /usr/src/qemu-0.6.1/softmmu_template.h: In function `__stq_mmu':
> /usr/src/qemu-0.6.1/softmmu_template.h:223: error: unable to find a
> register to spill in class `GENERAL_REGS'
> /usr/src/qemu-0.6.1/softmmu_template.h:223: error: this is the insn:
> (insn:HI 315 314 316 13 /usr/src/qemu-0.6.1/softmmu_template.h:252
> (parallel [
>             (set (reg:DI 0 ax [194])
>                 (lshiftrt:DI (reg/v:DI 59 [ val ])
>                     (subreg:QI (reg:SI 0 ax [193]) 0)))
>             (clobber (scratch:SI))
>             (clobber (reg:CC 17 flags))
>         ]) 306 {lshrdi3_1} (insn_list 314 (nil))
>     (expr_list:REG_DEAD (reg:SI 0 ax [193])
>         (expr_list:REG_UNUSED (reg:CC 17 flags)
>             (expr_list:REG_UNUSED (scratch:SI)
>                 (nil)))))
> /usr/src/qemu-0.6.1/softmmu_template.h:223: confused by earlier errors,
> bailing out
> make[1]: *** [helper.o] Error 1
> make[1]: Leaving directory `/usr/src/qemu-0.6.1/i386'
> make: *** [all] Error 1

I'm getting the same error when having '-march=athlon-xp' in my $CFLAGS
(and forcing qemu to use those).  Replacing that with '-march=pentium'
fixes the issue for me.

Perhaps someone (e.g. you :-) should report it on one of GCC's mailing
lists or through bugzilla (and reduce the code to only contain the
relevant parts before doing so).


Regards,
 Thomas