Re: xor as a lazy comparison

On Wed, 27 Jul 2005 15:58:48 -0400, "linux-os \(Dick Johnson\)" <[email protected]> wrote:
>
>I think the XOR thread was started by somebody as a ruse or
>a joke. XOR will always destroy the value of an operand. 

You missed the part where somebody checked assembler output and
found compiler optimised xor to cmp as nothing referenced the result.

Grant.

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• References:
  • Re: xor as a lazy comparison
    • From: "Clayton Weaver" <[email protected]>
  • Re: xor as a lazy comparison
    • From: "linux-os \(Dick Johnson\)" <[email protected]>

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