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Re: [PATCH][ARM] Remove movdi_vfp_cortexa8


ping

    
Richard Earnshaw (lists) wrote:
>  (define_insn "*movdi_vfp"
> -  [(set (match_operand:DI 0 "nonimmediate_di_operand" "=r,r,r,r,q,q,m,w,r,w,w, Uv")
> +  [(set (match_operand:DI 0 "nonimmediate_di_operand" "=r,r,r,r,q,q,m,w,!r,w,w, Uv")

> Why have you introduced a no-reloads block on the 9th alternative for
> all variants?

That is the default behaviour when you don't explicitly set a cpu, so I kept that.
See https://patches.linaro.org/patch/541/ for the original reason for adding it -
duplicating this pattern was a mistake since '!' wouldn't pessimize other cores
as int<->fp moves typically have a non-trivial cost.

However given Cortex-A8 is ancient now we could just remove the '!'.

Wilco    

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