Fritz Koenig e180255375 Remove stack shadowing for x86-x64 for SAD functions.
x86-64 passes arguments in registers.  There is no need to push
them to the stack before using them.

This fixes 15acc84f10cefd98b2f8dbd2eac2cc92c5a3f851 where ebx
was not getting preserved on x86.

Change-Id: I1214b5f818a0201f75ab6ad7d5c6f448e09b16c2
2010-11-15 10:56:02 -08:00
..
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