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>
diff --git a/libbb/hash_md5_sha256_x86-32_shaNI.S b/libbb/hash_md5_sha256_x86-32_shaNI.S
index 846230e..aa68193 100644
--- a/libbb/hash_md5_sha256_x86-32_shaNI.S
+++ b/libbb/hash_md5_sha256_x86-32_shaNI.S
@@ -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