1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2021, The Linux Foundation. A
4 */
5
6 #include <linux/linkage.h>
7
8 SYM_FUNC_START(__hexagon_divsi3)
9 {
10 p0 = cmp.gt(r0,#-1)
11 p1 = cmp.gt(r1,#-1)
12 r3:2 = vabsw(r1:0)
13 }
14 {
15 p3 = xor(p0,p1)
16 r4 = sub(r2,r3)
17 r6 = cl0(r2)
18 p0 = cmp.gtu(r3,r2)
19 }
20 {
21 r0 = mux(p3,#-1,#1)
22 r7 = cl0(r3)
23 p1 = cmp.gtu(r3,r4)
24 }
25 {
26 r0 = mux(p0,#0,r0)
27 p0 = or(p0,p1)
28 if (p0.new) jumpr:nt r31
29 r6 = sub(r7,r6)
30 }
31 {
32 r7 = r6
33 r5:4 = combine(#1,r3)
34 r6 = add(#1,lsr(r6,#1))
35 p0 = cmp.gtu(r6,#4)
36 }
37 {
38 r5:4 = vaslw(r5:4,r7)
39 if (!p0) r6 = #3
40 }
41 {
42 loop0(1f,r6)
43 r7:6 = vlsrw(r5:4,#1)
44 r1:0 = #0
45 }
46 .falign
47 1:
48 {
49 r5:4 = vlsrw(r5:4,#2)
50 if (!p0.new) r0 = add(r0,r5)
51 if (!p0.new) r2 = sub(r2,r4)
52 p0 = cmp.gtu(r4,r2)
53 }
54 {
55 r7:6 = vlsrw(r7:6,#2)
56 if (!p0.new) r0 = add(r0,r7)
57 if (!p0.new) r2 = sub(r2,r6)
58 p0 = cmp.gtu(r6,r2)
59 }:endloop0
60 {
61 if (!p0) r0 = add(r0,r7)
62 }
63 {
64 if (p3) r0 = sub(r1,r0)
65 jumpr r31
66 }
67 SYM_FUNC_END(__hexagon_divsi3)
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