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Re: [patch 1/2] AMD bdver2 processors - BMI


On 11/02/2010 12:51 PM, Quentin Neill wrote:
>>>> #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) ...[snip]...
>>> I take it his goes in defaults.h?  How do I test this?
>> This goes in i386.h.  Test this by seeing that __builtin_ctz
>> with a constant operand 0 gets folded properly.
> 
> Okay, thanks.
> 
> Any hints on what test case this would go in?

A new one?

>     (set (attr "prefix_rep") (symbol_ref "TARGET_BMI"))
> 
> but my question is how is the "prefix_rep" attribute used?

It's a component of the "length" attribute".


r~


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