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libbb/sha1: shrink x86 hardware accelerated hashing

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function                                             old     new   delta
sha1_process_block64_shaNI 32-bit                    524     517      -7
sha1_process_block64_shaNI 64-bit                    510     508      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2022-02-08 08:20:27 +01:00
parent 4923f74e58
commit 71a1cccaad
2 changed files with 29 additions and 32 deletions
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37
libbb/hash_md5_sha_x86-32_shaNI.S
View File

@ -32,14 +32,10 @@
#define MSG1 %xmm4
#define MSG2 %xmm5
#define MSG3 %xmm6
#define SHUF_MASK %xmm7
.balign 8 # allow decoders to fetch at least 3 first insns
.balign 8 # allow decoders to fetch at least 2 first insns
sha1_process_block64_shaNI:
pushl %ebp
movl %esp, %ebp
subl $32, %esp
andl $~0xF, %esp # paddd needs aligned memory operand
subl $16, %esp
/* load initial hash values */
xor128 E0, E0
@ -47,30 +43,33 @@ sha1_process_block64_shaNI:
pinsrd $3, 76+4*4(%eax), E0 # load to uppermost 32-bit word
shuf128_32 $0x1B, ABCD, ABCD # DCBA -> ABCD
mova128 PSHUFFLE_BYTE_FLIP_MASK, SHUF_MASK
mova128 PSHUFFLE_BYTE_FLIP_MASK, %xmm7
movu128 0*16(%eax), MSG0
pshufb %xmm7, MSG0
movu128 1*16(%eax), MSG1
pshufb %xmm7, MSG1
movu128 2*16(%eax), MSG2
pshufb %xmm7, MSG2
movu128 3*16(%eax), MSG3
pshufb %xmm7, MSG3
/* Save hash values for addition after rounds */
movu128 E0, 16(%esp)
movu128 E0, %xmm7
movu128 ABCD, (%esp)
/* Rounds 0-3 */
movu128 0*16(%eax), MSG0
pshufb SHUF_MASK, MSG0
paddd MSG0, E0
mova128 ABCD, E1
sha1rnds4 $0, E0, ABCD
/* Rounds 4-7 */
movu128 1*16(%eax), MSG1
pshufb SHUF_MASK, MSG1
sha1nexte MSG1, E1
mova128 ABCD, E0
sha1rnds4 $0, E1, ABCD
sha1msg1 MSG1, MSG0
/* Rounds 8-11 */
movu128 2*16(%eax), MSG2
pshufb SHUF_MASK, MSG2
sha1nexte MSG2, E0
mova128 ABCD, E1
sha1rnds4 $0, E0, ABCD
@ -78,8 +77,6 @@ sha1_process_block64_shaNI:
xor128 MSG2, MSG0
/* Rounds 12-15 */
movu128 3*16(%eax), MSG3
pshufb SHUF_MASK, MSG3
sha1nexte MSG3, E1
mova128 ABCD, E0
sha1msg2 MSG3, MSG0
@ -210,16 +207,16 @@ sha1_process_block64_shaNI:
sha1rnds4 $3, E1, ABCD
/* Add current hash values with previously saved */
sha1nexte 16(%esp), E0
paddd (%esp), ABCD
sha1nexte %xmm7, E0
movu128 (%esp), %xmm7
paddd %xmm7, ABCD
/* Write hash values back in the correct order */
shuf128_32 $0x1B, ABCD, ABCD
movu128 ABCD, 76(%eax)
extr128_32 $3, E0, 76+4*4(%eax)
movl %ebp, %esp
popl %ebp
addl $16, %esp
ret
.size sha1_process_block64_shaNI, .-sha1_process_block64_shaNI

24
libbb/hash_md5_sha_x86-64_shaNI.S
View File

@ -32,7 +32,6 @@
#define MSG1 %xmm4
#define MSG2 %xmm5
#define MSG3 %xmm6
#define SHUF_MASK %xmm7
.balign 8 # allow decoders to fetch at least 2 first insns
sha1_process_block64_shaNI:
@ -43,30 +42,33 @@ sha1_process_block64_shaNI:
pinsrd $3, 80+4*4(%rdi), E0 # load to uppermost 32-bit word
shuf128_32 $0x1B, ABCD, ABCD # DCBA -> ABCD
mova128 PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK
mova128 PSHUFFLE_BYTE_FLIP_MASK(%rip), %xmm7
movu128 0*16(%rdi), MSG0
pshufb %xmm7, MSG0
movu128 1*16(%rdi), MSG1
pshufb %xmm7, MSG1
movu128 2*16(%rdi), MSG2
pshufb %xmm7, MSG2
movu128 3*16(%rdi), MSG3
pshufb %xmm7, MSG3
/* Save hash values for addition after rounds */
mova128 E0, %xmm9
mova128 E0, %xmm7
mova128 ABCD, %xmm8
/* Rounds 0-3 */
movu128 0*16(%rdi), MSG0
pshufb SHUF_MASK, MSG0
paddd MSG0, E0
mova128 ABCD, E1
sha1rnds4 $0, E0, ABCD
/* Rounds 4-7 */
movu128 1*16(%rdi), MSG1
pshufb SHUF_MASK, MSG1
sha1nexte MSG1, E1
mova128 ABCD, E0
sha1rnds4 $0, E1, ABCD
sha1msg1 MSG1, MSG0
/* Rounds 8-11 */
movu128 2*16(%rdi), MSG2
pshufb SHUF_MASK, MSG2
sha1nexte MSG2, E0
mova128 ABCD, E1
sha1rnds4 $0, E0, ABCD
@ -74,8 +76,6 @@ sha1_process_block64_shaNI:
xor128 MSG2, MSG0
/* Rounds 12-15 */
movu128 3*16(%rdi), MSG3
pshufb SHUF_MASK, MSG3
sha1nexte MSG3, E1
mova128 ABCD, E0
sha1msg2 MSG3, MSG0
@ -206,7 +206,7 @@ sha1_process_block64_shaNI:
sha1rnds4 $3, E1, ABCD
/* Add current hash values with previously saved */
sha1nexte %xmm9, E0
sha1nexte %xmm7, E0
paddd %xmm8, ABCD
/* Write hash values back in the correct order */