[PATCH] : For SH target, generate warning if Destination register is same for parallel insns

[Nick Clifton]

Hi Arati,

> The SH assembler currently does not generate a warning if the same 
> destination register is used in parallel instructions. As this can
> lead to unexpected results, the user needs to be warned as is done
> in other commercial assemblers.
> 
> For example,
> 	PADD X0,Y0,A0 PMULS A1,X0,A0 
> 
> The following patch generates the warning. I have also verified that
> it does not cause any side effect on other DSP instructions.

Thank you for submitting this patch.  Unfortunately since this is a
non-trivial change we cannot consider accepting it without a copyright
assignment on file with the FSF.  Please could you fill out the form
below and send it off, so that this process can be started.

Cheers
        Nick

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