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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2022-02-09 01:50:22 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2022-02-09 01:50:22 +0100 |
| commit | caa9c4f707b661cf398f2c2d66f54f5b0d8adfe2 (patch) | |
| tree | 409b19128aa7bc1a512fa126f22f1a3e9344d8ae /libbb/hash_md5_sha256_x86-64_shaNI.S | |
| parent | 11bcea7ac0ac4b2156c1b2d53f926d789b9792b4 (diff) | |
| download | busybox-w32-caa9c4f707b661cf398f2c2d66f54f5b0d8adfe2.tar.gz busybox-w32-caa9c4f707b661cf398f2c2d66f54f5b0d8adfe2.tar.bz2 busybox-w32-caa9c4f707b661cf398f2c2d66f54f5b0d8adfe2.zip | |
libbb/sha256: code shrink in x86 assembly
function old new delta
sha256_process_block64_shaNI 32-bit 676 673 -3
sha256_process_block64_shaNI 64-bit 680 677 -3
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to '')
| -rw-r--r-- | libbb/hash_md5_sha256_x86-64_shaNI.S | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/libbb/hash_md5_sha256_x86-64_shaNI.S b/libbb/hash_md5_sha256_x86-64_shaNI.S index bc063b9cc..4663f750a 100644 --- a/libbb/hash_md5_sha256_x86-64_shaNI.S +++ b/libbb/hash_md5_sha256_x86-64_shaNI.S | |||
| @@ -42,13 +42,12 @@ | |||
| 42 | .balign 8 # allow decoders to fetch at least 2 first insns | 42 | .balign 8 # allow decoders to fetch at least 2 first insns |
| 43 | sha256_process_block64_shaNI: | 43 | sha256_process_block64_shaNI: |
| 44 | 44 | ||
| 45 | movu128 80+0*16(%rdi), STATE1 /* DCBA (msb-to-lsb: 3,2,1,0) */ | 45 | movu128 80+0*16(%rdi), XMMTMP /* DCBA (msb-to-lsb: 3,2,1,0) */ |
| 46 | movu128 80+1*16(%rdi), STATE0 /* HGFE */ | 46 | movu128 80+1*16(%rdi), STATE1 /* HGFE */ |
| 47 | /* shufps takes dwords 0,1 from *2nd* operand, and dwords 2,3 from 1st one */ | 47 | /* shufps takes dwords 0,1 from *2nd* operand, and dwords 2,3 from 1st one */ |
| 48 | mova128 STATE0, XMMTMP | 48 | mova128 STATE1, STATE0 |
| 49 | shufps SHUF(1,0,1,0), STATE1, STATE0 /* ABEF */ | 49 | shufps SHUF(1,0,1,0), XMMTMP, STATE0 /* ABEF */ |
| 50 | shufps SHUF(3,2,3,2), STATE1, XMMTMP /* CDGH */ | 50 | shufps SHUF(3,2,3,2), XMMTMP, STATE1 /* CDGH */ |
| 51 | mova128 XMMTMP, STATE1 | ||
| 52 | 51 | ||
| 53 | /* XMMTMP holds flip mask from here... */ | 52 | /* XMMTMP holds flip mask from here... */ |
| 54 | mova128 PSHUFFLE_BSWAP32_FLIP_MASK(%rip), XMMTMP | 53 | mova128 PSHUFFLE_BSWAP32_FLIP_MASK(%rip), XMMTMP |