[Patch] [MIPS] Add -mips16e option to gas

Catherine Moore clm@codesourcery.com
Tue May 25 13:52:00 GMT 2010



Richard Sandiford wrote:
> Catherine Moore <clm@codesourcery.com> writes:
>> This patch adds the -mips16e option to gas enabling backwards 
>> compatibility with the SDE toolchain.
> 
> FWIW, we did discuss this with MTI a few years back and "agreed"
> (as I remember it ;-)) that the -mips16e option wasn't really
> worthwhile, and that FSF compatibility wasn't necessary.
> -mips16 is effectively a mode selection that flips between 16-bit
> and 32-bit instruction encodings, and as such there isn't any
> need for a separate option to say that the MIPS16 encoding on
> certain architectures supports more instructions than on other
> architectures.  There's no non-MIPS32 or non-MIPS64 archicture
> that supports the full MIPS16e encoding and no MIPS32 or MIPS64
> architecture that supports only the "old" MIPS16 encoding.
> Adding -mips16e risks confusing people about what -mips16
> actually means.
> 
Hi Richard,
Based on this comment and Maciej's pointer to the original discussion, 
I am withdrawing this patch from consideration.
Thanks,
Catherine



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