1//===------------------------- memcopy routines ---------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9
10 .macro FUNCTION_BEGIN name
11 .text
12 .p2align 5
13 .globl \name
14 .type \name, @function
15\name:
16 .endm
17
18 .macro FUNCTION_END name
19 .size \name, . - \name
20 .endm
21
22FUNCTION_BEGIN __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes
23 {
24 p0 = bitsclr(r1,#7)
25 p0 = bitsclr(r0,#7)
26 if (p0.new) r5:4 = memd(r1)
27 r3 = #-3
28 }
29 {
30 if (!p0) jump .Lmemcpy_call
31 if (p0) memd(r0++#8) = r5:4
32 if (p0) r5:4 = memd(r1+#8)
33 r3 += lsr(r2,#3)
34 }
35 {
36 memd(r0++#8) = r5:4
37 r5:4 = memd(r1+#16)
38 r1 = add(r1,#24)
39 loop0(1f,r3)
40 }
41 .falign
421:
43 {
44 memd(r0++#8) = r5:4
45 r5:4 = memd(r1++#8)
46 }:endloop0
47 {
48 memd(r0) = r5:4
49 r0 -= add(r2,#-8)
50 jumpr r31
51 }
52FUNCTION_END __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes
53
54.Lmemcpy_call:
55#ifdef __PIC__
56 jump memcpy@PLT
57#else
58 jump memcpy
59#endif
60
61 .globl __qdsp_memcpy_likely_aligned_min32bytes_mult8bytes
62 .set __qdsp_memcpy_likely_aligned_min32bytes_mult8bytes, \
63 __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes
64

source code of compiler-rt/lib/builtins/hexagon/memcpy_likely_aligned.S