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cipher: xts amd64 reduce inst.

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Sun Yimin 2023-08-20 12:46:41 +08:00 committed by GitHub
parent ddea8332fe
commit bf355a1ea3
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 4 deletions
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cipher/xts_amd64.s
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@ -58,14 +58,13 @@ gb_alg:
// B0 * 2 // B0 * 2
MOVOU B0, T0 MOVOU B0, T0
MOVOU B0, T1 PSHUFD $0, B0, T1
PSRLQ $1, B0 PSRLQ $1, B0
PSLLQ $63, T0 PSLLQ $63, T0
PSRLDQ $8, T0 PSRLDQ $8, T0
POR T0, B0 POR T0, B0
// reduction // reduction
PSHUFD $0, T1, T1
PSLLL $31, T1 PSLLL $31, T1
PSRAL $31, T1 PSRAL $31, T1
PAND POLY, T1 PAND POLY, T1
@ -126,14 +125,13 @@ gb_loop:
// B0 * 2 // B0 * 2
MOVOU B0, T0 MOVOU B0, T0
MOVOU B0, T1 PSHUFD $0, B0, T1
PSRLQ $1, B0 PSRLQ $1, B0
PSLLQ $63, T0 PSLLQ $63, T0
PSRLDQ $8, T0 PSRLDQ $8, T0
POR T0, B0 POR T0, B0
// reduction // reduction
PSHUFD $0, T1, T1
PSLLL $31, T1 PSLLL $31, T1
PSRAL $31, T1 PSRAL $31, T1
PAND POLY, T1 PAND POLY, T1