TESTQ $7, DX // AND $7 & len, if not zero jump to loop_1b. JNE loop_1b SUBQ $8, DX // XOR 8bytes backwards. MOVQ (SI)(DX*1), DI MOVQ (CX)(DX*1), AX XORQ AX, DI MOVQ DI, (BX)(DX*1) CMPQ DX, $16 // if len is greater or equal 16 here, it must be aligned. JGE aligned ret: RET golang.org/fips140@v1.1.0-rc1/fips140/v1.1.0-rc1/subtle/xor_arm64.s // Copyright 2020 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build...