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| author | Denys Vlasenko | 2022-02-08 15:23:26 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2022-02-08 15:23:26 +0100 |
| commit | eb52e7fa522d829fb400461ca4c808ee5c1d6428 (patch) | |
| tree | ef78b00437f8c2c9ce10cd99a70798d2f9bd2b1b | |
| parent | 71a1cccaad679bd102f87283f78c581a8fb0e255 (diff) | |
| download | busybox-eb52e7fa522d829fb400461ca4c808ee5c1d6428.zip busybox-eb52e7fa522d829fb400461ca4c808ee5c1d6428.tar.gz | |
libbb/sha1: shrink x86 hardware accelerated hashing (32-bit)
function old new delta
sha1_process_block64_shaNI 517 511 -6
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | libbb/hash_md5_sha_x86-32_shaNI.S | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/libbb/hash_md5_sha_x86-32_shaNI.S b/libbb/hash_md5_sha_x86-32_shaNI.S index 0f3fe57..ad814a2 100644 --- a/libbb/hash_md5_sha_x86-32_shaNI.S +++ b/libbb/hash_md5_sha_x86-32_shaNI.S @@ -35,11 +35,9 @@ .balign 8 # allow decoders to fetch at least 2 first insns sha1_process_block64_shaNI: - subl $16, %esp - /* load initial hash values */ - xor128 E0, E0 movu128 76(%eax), ABCD + xor128 E0, E0 pinsrd $3, 76+4*4(%eax), E0 # load to uppermost 32-bit word shuf128_32 $0x1B, ABCD, ABCD # DCBA -> ABCD @@ -56,7 +54,7 @@ sha1_process_block64_shaNI: /* Save hash values for addition after rounds */ movu128 E0, %xmm7 - movu128 ABCD, (%esp) + /*movu128 ABCD, %xmm8 - NOPE, 32bit has no xmm8 */ /* Rounds 0-3 */ paddd MSG0, E0 @@ -208,7 +206,9 @@ sha1_process_block64_shaNI: /* Add current hash values with previously saved */ sha1nexte %xmm7, E0 - movu128 (%esp), %xmm7 + /*paddd %xmm8, ABCD - 32-bit mode has no xmm8 */ + movu128 76(%eax), %xmm7 # recreate original ABCD + shuf128_32 $0x1B, %xmm7, %xmm7 # DCBA -> ABCD paddd %xmm7, ABCD /* Write hash values back in the correct order */ @@ -216,7 +216,6 @@ sha1_process_block64_shaNI: movu128 ABCD, 76(%eax) extr128_32 $3, E0, 76+4*4(%eax) - addl $16, %esp ret .size sha1_process_block64_shaNI, .-sha1_process_block64_shaNI |