s390/bitops: Provide optimized arch_test_bit()

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Provide an optimized arch_test_bit() implementation which makes use of
flag output constraint. This generates slightly better code:

bloat-o-meter:
add/remove: 51/19 grow/shrink: 450/2444 up/down: 25198/-49136 (-23938)

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

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Heiko Carstens 2024-12-13 13:27:34 +01:00 • committed by Alexander Gordeev

parent 8cae8e0afb

commit b2bc1b1a77

1 changed files with 33 additions and 1 deletions

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arch/s390/include/asm/bitops.h

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