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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".