Re: Why Git is so fast

On Thu, 30 Apr 2009, Kjetil Barvik wrote:

  I admit that I am not particular familar with intel machine
  instructions, but I guess that the above 10 mov instructions is the
  result for the compiled inline hashcpy() in the write_sha1_file()
  function in sha1_file.c

  Question: would it be possible for the compiler to compile it down to
  just 5 mov instructions if we had used unsigned 32 bits type?

No, because the x86 can't do direct memory-to-memory moves.

Tony.
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