xref: /freebsd/contrib/llvm-project/compiler-rt/lib/builtins/hexagon/modsi3.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
10*0b57cec5SDimitry Andric
11*0b57cec5SDimitry Andric	.macro FUNCTION_BEGIN name
12*0b57cec5SDimitry Andric	.text
13*0b57cec5SDimitry Andric	.p2align 5
14*0b57cec5SDimitry Andric	.globl \name
15*0b57cec5SDimitry Andric	.type  \name, @function
16*0b57cec5SDimitry Andric\name:
17*0b57cec5SDimitry Andric	.endm
18*0b57cec5SDimitry Andric
19*0b57cec5SDimitry Andric	.macro FUNCTION_END name
20*0b57cec5SDimitry Andric	.size  \name, . - \name
21*0b57cec5SDimitry Andric	.endm
22*0b57cec5SDimitry Andric
23*0b57cec5SDimitry Andric
24*0b57cec5SDimitry AndricFUNCTION_BEGIN __hexagon_modsi3
25*0b57cec5SDimitry Andric	{
26*0b57cec5SDimitry Andric		p2 = cmp.ge(r0,#0)
27*0b57cec5SDimitry Andric		r2 = abs(r0)
28*0b57cec5SDimitry Andric		r1 = abs(r1)
29*0b57cec5SDimitry Andric	}
30*0b57cec5SDimitry Andric	{
31*0b57cec5SDimitry Andric		r3 = cl0(r2)
32*0b57cec5SDimitry Andric		r4 = cl0(r1)
33*0b57cec5SDimitry Andric		p0 = cmp.gtu(r1,r2)
34*0b57cec5SDimitry Andric	}
35*0b57cec5SDimitry Andric	{
36*0b57cec5SDimitry Andric		r3 = sub(r4,r3)
37*0b57cec5SDimitry Andric		if (p0) jumpr r31
38*0b57cec5SDimitry Andric	}
39*0b57cec5SDimitry Andric	{
40*0b57cec5SDimitry Andric		p1 = cmp.eq(r3,#0)
41*0b57cec5SDimitry Andric		loop0(1f,r3)
42*0b57cec5SDimitry Andric		r0 = r2
43*0b57cec5SDimitry Andric		r2 = lsl(r1,r3)
44*0b57cec5SDimitry Andric	}
45*0b57cec5SDimitry Andric	.falign
46*0b57cec5SDimitry Andric1:
47*0b57cec5SDimitry Andric	{
48*0b57cec5SDimitry Andric		p0 = cmp.gtu(r2,r0)
49*0b57cec5SDimitry Andric		if (!p0.new) r0 = sub(r0,r2)
50*0b57cec5SDimitry Andric		r2 = lsr(r2,#1)
51*0b57cec5SDimitry Andric		if (p1) r1 = #0
52*0b57cec5SDimitry Andric	}:endloop0
53*0b57cec5SDimitry Andric	{
54*0b57cec5SDimitry Andric		p0 = cmp.gtu(r2,r0)
55*0b57cec5SDimitry Andric		if (!p0.new) r0 = sub(r0,r1)
56*0b57cec5SDimitry Andric		if (p2) jumpr r31
57*0b57cec5SDimitry Andric	}
58*0b57cec5SDimitry Andric	{
59*0b57cec5SDimitry Andric		r0 = neg(r0)
60*0b57cec5SDimitry Andric		jumpr r31
61*0b57cec5SDimitry Andric	}
62*0b57cec5SDimitry AndricFUNCTION_END __hexagon_modsi3
63*0b57cec5SDimitry Andric
64*0b57cec5SDimitry Andric  .globl __qdsp_modsi3
65*0b57cec5SDimitry Andric  .set   __qdsp_modsi3, __hexagon_modsi3
66