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Re: PATCH: PR rtl-optimization/50696: [x32] Unnecessary lea


> An and:DI is cheaper than a zero_extend:DI of an and:SI.  

That depends strongly on the constants and whether the machine is 32-bit
or 64-bit. 

But that's irrelevant in this case since the and:SI will be removed (it
reflects what already been done).


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