[patch] invalid error reports on v850-elf target/ppc-darwin host

[Masaki Muranaka <monaka at monami-software dot com>]

Hello maintainers,

As you know, it is undefined in case bit shift with negative value.
The result of (long)((1 << -1) - 1) is also undefined.
It seems it will be LONG_MAX on i386 host, and -1 on ppc.

This patch is fix assemble error caused by the behavior above.

2008-04-25  Masaki Muranaka  <monaka@monami-software.com>

        * config/tc-v850.c (LONG_MAX) : Define if the host doesn't  
have.
        (v850_insert_operand): Set LONG_MAX to max if operand->bits  
== -1.

--
Masaki Muranaka
Monami Software

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