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Code Issues Releases Activity

Improve NEON rot16/rot8

This commit is contained in:
sdlyyxy 2023-06-24 15:14:47 +08:00
parent 3f396d2239
commit 7a9a32a8f3
1 changed files with 2 additions and 2 deletions
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c/blake3_neon.c
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@ -36,7 +36,7 @@ INLINE uint32x4_t set4(uint32_t a, uint32_t b, uint32_t c, uint32_t d) {
}
INLINE uint32x4_t rot16_128(uint32x4_t x) {
return vorrq_u32(vshrq_n_u32(x, 16), vshlq_n_u32(x, 32 - 16));
return vreinterpretq_u32_u16(vrev32q_u16(vreinterpretq_u16_u32(x)));
}
INLINE uint32x4_t rot12_128(uint32x4_t x) {
@ -44,7 +44,7 @@ INLINE uint32x4_t rot12_128(uint32x4_t x) {
}
INLINE uint32x4_t rot8_128(uint32x4_t x) {
return vorrq_u32(vshrq_n_u32(x, 8), vshlq_n_u32(x, 32 - 8));
return vreinterpretq_u32_u8(__builtin_shufflevector(vreinterpretq_u8_u32(x), vreinterpretq_u8_u32(x), 1,2,3,0,5,6,7,4,9,10,11,8,13,14,15,12));
}
INLINE uint32x4_t rot7_128(uint32x4_t x) {