caa9c4f70
Denys Vlasenko
2022-02-09
Subject
libbb/sha256: code shrink in x86 assembly
Binary
No binary (build failed)
Architecture & Compiler Flags
—
Build Log
(log yok)
Commit Diff GitHub →
libbb/hash_md5_sha256_x86-32_shaNI.S+5 -6
| @@ -39,13 +39,12 @@ | |
| .balign 8 # allow decoders to fetch at least 2 first insns | |
| sha256_process_block64_shaNI: | |
| - | movu128 76+0*16(%eax), STATE1 /* DCBA (msb-to-lsb: 3,2,1,0) */ |
| - | movu128 76+1*16(%eax), STATE0 /* HGFE */ |
| + | movu128 76+0*16(%eax), XMMTMP /* DCBA (msb-to-lsb: 3,2,1,0) */ |
| + | movu128 76+1*16(%eax), STATE1 /* HGFE */ |
| /* shufps takes dwords 0,1 from *2nd* operand, and dwords 2,3 from 1st one */ | |
| - | mova128 STATE0, XMMTMP |
| - | shufps SHUF(1,0,1,0), STATE1, STATE0 /* ABEF */ |
| - | shufps SHUF(3,2,3,2), STATE1, XMMTMP /* CDGH */ |
| - | mova128 XMMTMP, STATE1 |
| + | mova128 STATE1, STATE0 |
| + | shufps SHUF(1,0,1,0), XMMTMP, STATE0 /* ABEF */ |
| + | shufps SHUF(3,2,3,2), XMMTMP, STATE1 /* CDGH */ |
| /* XMMTMP holds flip mask from here... */ | |
| mova128 PSHUFFLE_BSWAP32_FLIP_MASK, XMMTMP | |
libbb/hash_md5_sha256_x86-64_shaNI.S+5 -6
| @@ -42,13 +42,12 @@ | |
| .balign 8 # allow decoders to fetch at least 2 first insns | |
| sha256_process_block64_shaNI: | |
| - | movu128 80+0*16(%rdi), STATE1 /* DCBA (msb-to-lsb: 3,2,1,0) */ |
| - | movu128 80+1*16(%rdi), STATE0 /* HGFE */ |
| + | movu128 80+0*16(%rdi), XMMTMP /* DCBA (msb-to-lsb: 3,2,1,0) */ |
| + | movu128 80+1*16(%rdi), STATE1 /* HGFE */ |
| /* shufps takes dwords 0,1 from *2nd* operand, and dwords 2,3 from 1st one */ | |
| - | mova128 STATE0, XMMTMP |
| - | shufps SHUF(1,0,1,0), STATE1, STATE0 /* ABEF */ |
| - | shufps SHUF(3,2,3,2), STATE1, XMMTMP /* CDGH */ |
| - | mova128 XMMTMP, STATE1 |
| + | mova128 STATE1, STATE0 |
| + | shufps SHUF(1,0,1,0), XMMTMP, STATE0 /* ABEF */ |
| + | shufps SHUF(3,2,3,2), XMMTMP, STATE1 /* CDGH */ |
| /* XMMTMP holds flip mask from here... */ | |
| mova128 PSHUFFLE_BSWAP32_FLIP_MASK(%rip), XMMTMP | |