[PATCH, ARM, iWMMXt][1/5]: ARM code generic change

[Xinyu Qi]

> > Hi,
> >
> > It is the first part of iWMMXt maintenance.
> >
> > *config/arm/arm.c (arm_option_override):
> >   Enable iWMMXt with VFP. iWMMXt and NEON are incompatible. 
> iWMMXt unsupported under Thumb-2 mode.
> >   (arm_expand_binop_builtin): Accept immediate op (with mode VOID)
> > *config/arm/arm.md:
> >   Resettle include location of iwmmxt.md so that *arm_movdi 
> and *arm_movsi_insn could be used when iWMMXt is enabled.
> 
> With the current work in trunk to handle enabled attributes 
> and per-alternative predicable attributes (Thanks Bernd) we 
> should be able to get rid of *cond_iwmmxt_movsi_insn"  in 
> iwmmxt.md file. It's not a matter for this patch but for a 
> follow-up patch.
> 
> Actually we should probably do the same for the various insns 
> that are dotted around all over the place with final 
> conditions that prevent matching - atleast makes the backend 
> description slightly smaller :).
> 
> >   Add pipeline description file include.
> 
> It is enough to say
> 
>  (<filename>): Include.
> 
> in the changelog entry.
> 
> The include for the pipeline description file should be with 
> the patch that you add this in i.e. patch #5. Please add this 
> to MD_INCLUDES in t-arm as well.
> 
> Also as a general note, please provide a correct Changelog entry.
> 
> This is not the format that we expect Changelog entries to be in.
> Please look at the coding standards on the website for this 
> or at other patches submitted with respect to Changelog 
> entries. Please fix this for each patch in the patch stack.
> 
> 
> cheers
> Ramana

Thanks for reviewing. I have updated the patches and the Changelog.

*config/arm/arm.c (arm_option_override): Enable iWMMXt with VFP.
 (arm_expand_binop_builtin): Accept VOIDmode op.
*config/arm/arm.md (*arm_movdi, *arm_movsi_insn): Remove condition !TARGET_IWMMXT.
 (iwmmxt.md): Include location.

Thanks,
Xinyu
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