x86-64: make pda's cpunumber and nodenumber unsigned

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This generally allows better code to be generated, since the zero-
extension during 32-bit operations comes for free (needed when the
result is used as array index or similar), whereas sign extension must
be done explicitly and frequently requires a one byte larger
instruction due to the necessary rex64 prefix.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Jan Beulich 2008-01-30 13:31:21 +01:00 • committed by Ingo Molnar

parent bdb4f15606

commit d88879b2d0

1 changed files with 2 additions and 2 deletions

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4

include/asm-x86/pda.h

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