1//===----------------------Hexagon builtin routine ------------------------===//
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	.macro FUNCTION_BEGIN name
10	.text
11	.p2align 5
12	.globl \name
13	.type  \name, @function
14\name:
15	.endm
16
17	.macro FUNCTION_END name
18	.size  \name, . - \name
19	.endm
20
21#define Q6_ALIAS(TAG) .global __qdsp_##TAG ; .set __qdsp_##TAG, __hexagon_##TAG
22#define FAST_ALIAS(TAG) .global __hexagon_fast_##TAG ; .set __hexagon_fast_##TAG, __hexagon_##TAG
23#define FAST2_ALIAS(TAG) .global __hexagon_fast2_##TAG ; .set __hexagon_fast2_##TAG, __hexagon_##TAG
24
25FUNCTION_BEGIN __hexagon_divsf3
26  {
27    r2,p0 = sfrecipa(r0,r1)
28    r4 = sffixupd(r0,r1)
29    r3 = ##0x3f800000   // 1.0
30  }
31  {
32    r5 = sffixupn(r0,r1)
33    r3 -= sfmpy(r4,r2):lib  // 1-(den/recip) yields error?
34    r6 = ##0x80000000
35    r7 = r3
36  }
37  {
38    r2 += sfmpy(r3,r2):lib
39    r3 = r7
40    r6 = r5
41    r0 = and(r6,r5)
42  }
43  {
44    r3 -= sfmpy(r4,r2):lib
45    r0 += sfmpy(r5,r2):lib
46  }
47  {
48    r2 += sfmpy(r3,r2):lib
49    r6 -= sfmpy(r0,r4):lib
50  }
51  {
52    r0 += sfmpy(r6,r2):lib
53  }
54  {
55    r5 -= sfmpy(r0,r4):lib
56  }
57  {
58    r0 += sfmpy(r5,r2,p0):scale
59    jumpr r31
60  }
61FUNCTION_END __hexagon_divsf3
62
63Q6_ALIAS(divsf3)
64FAST_ALIAS(divsf3)
65FAST2_ALIAS(divsf3)
66