xref: /freebsd/contrib/llvm-project/compiler-rt/lib/builtins/hexagon/memcpy_likely_aligned.S (revision ec0ea6efa1ad229d75c394c1a9b9cac33af2b1d3)
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