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Updated SM3性能优化 (markdown)

Sun Yimin 2023-09-18 15:13:32 +08:00
parent 5738b9657d
commit 65694364b9
1 changed files with 8 additions and 12 deletions
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20
SM3性能优化.md

@ -223,23 +223,19 @@ SM3的第一版，比SHA256复杂，不知道有没有继续优化的空间。
VPALIGNR $4, XDWORD3, XTMP2, XTMP3; \ // XTMP3 = {W[0], w15, w14, w13}
VPSLLD $15, XTMP3, XTMP4; \
VPSRLD $(32-15), XTMP4, XTMP4; \
VPOR XTMP3, XTMP4, XTMP4; \ // XTMP4 = W[-3] rol 15 {DCxx}
VPXOR XTMP1, XTMP4, XTMP4; \ // XTMP4 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {DCxx}
VPOR XTMP3, XTMP4, XTMP4; \ // XTMP4 = W[-3] rol 15 {DCBA}
VPXOR XTMP1, XTMP4, XTMP4; \ // XTMP4 = W[-9] XOR W[-16] XOR (W[-3] rol 15) {DCBA}
// P1
VPSLLD $15, XTMP4, XTMP5; \
VPSRLD $(32-15), XTMP4, XTMP3; \
VPOR XTMP3, XTMP5, XTMP3; \ // XTMP3 = XTMP4 rol 15 {DCxx}
VPSHUFB r08_mask<>(SB), XTMP3, XTMP1; \ // XTMP1 = XTMP4 rol 23 {DCxx}
VPXOR XTMP3, XTMP4, XTMP3; \ // XTMP3 = XTMP4 XOR (XTMP4 rol 15 {DCxx})
VPXOR XTMP3, XTMP1, XTMP1; \ // XTMP1 = XTMP4 XOR (XTMP4 rol 15 {DCxx}) XOR (XTMP4 rol 23 {DCxx})
VPOR XTMP3, XTMP5, XTMP3; \ // XTMP3 = XTMP4 rol 15 {DCBA}
VPSHUFB r08_mask<>(SB), XTMP3, XTMP1; \ // XTMP1 = XTMP4 rol 23 {DCBA}
VPXOR XTMP3, XTMP4, XTMP3; \ // XTMP3 = XTMP4 XOR (XTMP4 rol 15 {DCBA})
VPXOR XTMP3, XTMP1, XTMP1; \ // XTMP1 = XTMP4 XOR (XTMP4 rol 15 {DCBA}) XOR (XTMP4 rol 23 {DCBA})
// Last 2 words message schedule result
VPXOR XTMP1, XTMP0, XTMP1; \ // XTMP1 = {W[3], W[2], ..., ...}
// 拼接结果
VPALIGNR $8, XTMP1, XTMP2, XTMP3; \ // XTMP3 = {W[1], W[0], W[3], W[2]}
VPSHUFD $0x4E, XTMP3, XDWORD0; \ // XDWORD0 = {W[3], W[2], W[1], W[0]}
// 4 words message schedule result
VPXOR XTMP1, XTMP0, XDWORD0; \ // XTMP1 = {W[3], W[2], W[1], W[0]}
```
ARM64 NEON 版（没有用VTBL表查询指令）：