[PATCH][ARM] Improve 64-bit shifts (non-NEON)

Ramana Radhakrishnan ramana.radhakrishnan@linaro.org
Tue Feb 7 22:20:00 GMT 2012


Hi Andrew

I find it interesting that cond_exec's in this form survive all the
way till reload and "work".  AFAIK we could never have cond_exec's
before reload . The documentation doesn't appear to mention this,
therefore I would like to see if  the cond_exec's can be recast as
if_then_else forms from expand rather than these forms. Has this
survived bootstrap and testing ?


> +      /* If we're optimizing for size, we prefer the libgcc calls.  */
> +      if (optimize_size)
> +	FAIL;

In addition you want to replace optimize_size with
optimize_function_for_size_p in these cases.

cheers
Ramana



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