What does leal (%eax, %eax) do?

StackOverflow https://stackoverflow.com/questions/12559357

Question

What does leal (%eax, %eax) do? Does that multiply the contents at %eax * 2 since it has parens?

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Solution

It will load the destination operand with the sum of eax and eax, IOW, 2*eax.

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