c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2024-12-26 19:19:32 +03:00
Code Issues Packages Projects Releases Wiki Activity

SPARC optimizations for Encode()

Browse Source 
Normally a SPARC processor runs in big endian mode. Save the extra labor
needed for little endian machines when the target is a big endian one
(sparc).

Signed-off-by: Pengcheng Xu <i@jsteward.moe>
This commit is contained in:
KireinaHoro 2017-10-11 13:16:46 +08:00
parent 46d4fe880e
commit a7ec8c47e2
No known key found for this signature in database
GPG Key ID: 57EE57F0ACF185BD
1 changed files with 17 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
module/icp/algs/sha1/sha1.c
View File

@ -817,10 +817,22 @@ Encode(uint8_t *_RESTRICT_KYWD output, const uint32_t *_RESTRICT_KYWD input,
{
size_t i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j] = (input[i] >> 24) & 0xff;
output[j + 1] = (input[i] >> 16) & 0xff;
output[j + 2] = (input[i] >> 8) & 0xff;
output[j + 3] = input[i] & 0xff;
#if defined(__sparc)
if (IS_P2ALIGNED(output, sizeof (uint32_t))) {
for (i = 0, j = 0; j < len; i++, j += 4) {
/* LINTED E_BAD_PTR_CAST_ALIGN */
*((uint32_t *)(output + j)) = input[i];
}
} else {
#endif /* little endian -- will work on big endian, but slowly */
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j] = (input[i] >> 24) & 0xff;
output[j + 1] = (input[i] >> 16) & 0xff;
output[j + 2] = (input[i] >> 8) & 0xff;
output[j + 3] = input[i] & 0xff;
}
#if defined(__sparc)
}
#endif
}