diff options
Diffstat (limited to 'string/aarch64/memcpy-sve.S')
| -rw-r--r-- | string/aarch64/memcpy-sve.S | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/string/aarch64/memcpy-sve.S b/string/aarch64/memcpy-sve.S index f74d4a9..61d36f2 100644 --- a/string/aarch64/memcpy-sve.S +++ b/string/aarch64/memcpy-sve.S @@ -57,14 +57,16 @@ ENTRY (__memcpy_aarch64_sve) cmp count, 128 b.hi L(copy_long) - cmp count, 32 + cntb vlen + cmp count, vlen, lsl 1 b.hi L(copy32_128) whilelo p0.b, xzr, count - cntb vlen - tbnz vlen, 4, L(vlen128) - ld1b z0.b, p0/z, [src] - st1b z0.b, p0, [dstin] + whilelo p1.b, vlen, count + ld1b z0.b, p0/z, [src, 0, mul vl] + ld1b z1.b, p1/z, [src, 1, mul vl] + st1b z0.b, p0, [dstin, 0, mul vl] + st1b z1.b, p1, [dstin, 1, mul vl] ret /* Medium copies: 33..128 bytes. */ @@ -133,14 +135,6 @@ L(copy64_from_end): stp A_q, B_q, [dstend, -32] ret -L(vlen128): - whilelo p1.b, vlen, count - ld1b z0.b, p0/z, [src, 0, mul vl] - ld1b z1.b, p1/z, [src, 1, mul vl] - st1b z0.b, p0, [dstin, 0, mul vl] - st1b z1.b, p1, [dstin, 1, mul vl] - ret - /* Large backwards copy for overlapping copies. Copy 16 bytes and then align srcend to 16-byte alignment. */ L(copy_long_backwards): |