m68k build failure

[Ian Lance Taylor]

>BUT, I have discovered with some cpu settings (for example -m68020
>-mnobitfield to cc1 in the CC1_SPEC) the compiler will generate tst
>instructions on Address registers, this IS LEGAL, BUT the assembler
>incorrectly rejects them if the cpu is < 68020.

>TST.W or TST.L instructions on Address registers are actually supported on
>all 68series CPUS.

No, they aren't.  The 68000 does not support them.  If you don't
believe me, check the Motorola documentation, or check an actual
68000.

It's a compiler bug.

Ian