crypto: aesni - Use TEST %reg,%reg instead of CMP $0,%reg

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[ Upstream commit 032d049ea0 ]

CMP $0,%reg can't set overflow flag, so we can use shorter TEST %reg,%reg
instruction when only zero and sign flags are checked (E,L,LE,G,GE conditions).

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Uros Bizjak 2020-11-27 10:44:52 +01:00 • committed by Greg Kroah-Hartman

parent 05d125f752

commit fcfab1a9aa

2 changed files with 20 additions and 20 deletions

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arch/x86/crypto/aesni-intel_asm.S

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20

arch/x86/crypto/aesni-intel_avx-x86_64.S

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