xref: /freebsd/contrib/llvm-project/compiler-rt/lib/builtins/hexagon/udivsi3.S (revision 0b57cec536236d46e3dba9bd041533462f33dbb7)
1*0b57cec5SDimitry Andric//===----------------------Hexagon builtin routine ------------------------===//
2*0b57cec5SDimitry Andric//
3*0b57cec5SDimitry Andric// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*0b57cec5SDimitry Andric// See https://llvm.org/LICENSE.txt for license information.
5*0b57cec5SDimitry Andric// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*0b57cec5SDimitry Andric//
7*0b57cec5SDimitry Andric//===----------------------------------------------------------------------===//
8*0b57cec5SDimitry Andric
9*0b57cec5SDimitry Andric	.macro FUNCTION_BEGIN name
10*0b57cec5SDimitry Andric	.text
11*0b57cec5SDimitry Andric        .p2align 5
12*0b57cec5SDimitry Andric	.globl \name
13*0b57cec5SDimitry Andric	.type  \name, @function
14*0b57cec5SDimitry Andric\name:
15*0b57cec5SDimitry Andric	.endm
16*0b57cec5SDimitry Andric
17*0b57cec5SDimitry Andric	.macro FUNCTION_END name
18*0b57cec5SDimitry Andric	.size  \name, . - \name
19*0b57cec5SDimitry Andric	.endm
20*0b57cec5SDimitry Andric
21*0b57cec5SDimitry Andric
22*0b57cec5SDimitry AndricFUNCTION_BEGIN __hexagon_udivsi3
23*0b57cec5SDimitry Andric	{
24*0b57cec5SDimitry Andric		r2 = cl0(r0)
25*0b57cec5SDimitry Andric		r3 = cl0(r1)
26*0b57cec5SDimitry Andric		r5:4 = combine(#1,#0)
27*0b57cec5SDimitry Andric		p0 = cmp.gtu(r1,r0)
28*0b57cec5SDimitry Andric	}
29*0b57cec5SDimitry Andric	{
30*0b57cec5SDimitry Andric		r6 = sub(r3,r2)
31*0b57cec5SDimitry Andric		r4 = r1
32*0b57cec5SDimitry Andric		r1:0 = combine(r0,r4)
33*0b57cec5SDimitry Andric		if (p0) jumpr r31
34*0b57cec5SDimitry Andric	}
35*0b57cec5SDimitry Andric	{
36*0b57cec5SDimitry Andric		r3:2 = vlslw(r5:4,r6)
37*0b57cec5SDimitry Andric		loop0(1f,r6)
38*0b57cec5SDimitry Andric	}
39*0b57cec5SDimitry Andric	.falign
40*0b57cec5SDimitry Andric1:
41*0b57cec5SDimitry Andric	{
42*0b57cec5SDimitry Andric		p0 = cmp.gtu(r2,r1)
43*0b57cec5SDimitry Andric		if (!p0.new) r1 = sub(r1,r2)
44*0b57cec5SDimitry Andric		if (!p0.new) r0 = add(r0,r3)
45*0b57cec5SDimitry Andric		r3:2 = vlsrw(r3:2,#1)
46*0b57cec5SDimitry Andric	}:endloop0
47*0b57cec5SDimitry Andric	{
48*0b57cec5SDimitry Andric		p0 = cmp.gtu(r2,r1)
49*0b57cec5SDimitry Andric		if (!p0.new) r0 = add(r0,r3)
50*0b57cec5SDimitry Andric		jumpr r31
51*0b57cec5SDimitry Andric	}
52*0b57cec5SDimitry AndricFUNCTION_END __hexagon_udivsi3
53*0b57cec5SDimitry Andric
54*0b57cec5SDimitry Andric  .globl __qdsp_udivsi3
55*0b57cec5SDimitry Andric  .set   __qdsp_udivsi3, __hexagon_udivsi3
56