wanderer/ BLAKE3
1
0
Fork 0
mirror of https://github.com/BLAKE3-team/BLAKE3 synced 2024-05-12 14:46:15 +02:00
Code Issues Releases Activity

slightly optimize neon loadu_128/storeu_128 

vld1q_u8 and vst1q_u8 has no alignment requirements.

This improves performance on Oracle Cloud's VM.Standard.A1.Flex by 1.15% on a 16*1024 input, from 13920 nanoseconds down to 13800 nanoseconds (approx)
This commit is contained in:
divinity76 2024-02-09 21:53:42 +01:00 committed by GitHub
parent 8fc36186b8
commit 4df11ecd4f
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
c/blake3_neon.c
View File

@ -9,15 +9,11 @@
#endif
INLINE uint32x4_t loadu_128(const uint8_t src[16]) {
// vld1q_u32 has alignment requirements. Don't use it.
uint32x4_t x;
memcpy(&x, src, 16);
return x;
return vreinterpretq_u32_u8(vld1q_u8(src));
}
INLINE void storeu_128(uint32x4_t src, uint8_t dest[16]) {
// vst1q_u32 has alignment requirements. Don't use it.
memcpy(dest, &src, 16);
vst1q_u8(dest, vreinterpretq_u8_u32(src));
}
INLINE uint32x4_t add_128(uint32x4_t a, uint32x4_t b) {