xref: /llvm-project/llvm/test/CodeGen/AArch64/fp16_intrinsic_scalar_3op.ll (revision 3d18c8cd265c0c0bf1d85226c4770a2dd0f86e8f) 
1; RUN: llc < %s -mtriple=aarch64 -mattr=+v8.2a,+neon,+fullfp16  | FileCheck %s
2
3define dso_local half @t_vfmah_f16(half %a, half %b, half %c) {
4; CHECK-LABEL: t_vfmah_f16:
5; CHECK:         fmadd h0, h1, h2, h0
6; CHECK-NEXT:    ret
7entry:
8  %0 = tail call half @llvm.fma.f16(half %b, half %c, half %a)
9  ret half %0
10}
11
12define half @fnma16(half %a, half %b, half %c) nounwind readnone ssp {
13; CHECK-LABEL: fnma16:
14; CHECK: fnmadd h0, h0, h1, h2
15entry:
16  %0 = tail call half @llvm.fma.f16(half %a, half %b, half %c)
17  %mul = fmul half %0, -1.000000e+00
18  ret half %mul
19}
20
21define half @fms16(half %a, half %b, half %c) nounwind readnone ssp {
22; CHECK-LABEL: fms16:
23; CHECK: fmsub h0, h0, h1, h2
24entry:
25  %mul = fneg half %b
26  %0 = tail call half @llvm.fma.f16(half %a, half %mul, half %c)
27  ret half %0
28}
29
30define half @fms16_com(half %a, half %b, half %c) nounwind readnone ssp {
31; CHECK-LABEL: fms16_com:
32; CHECK:       fmsub h0, h1, h0, h2
33; CHECK-NEXT:  ret
34entry:
35  %mul = fneg half %b
36  %0 = tail call half @llvm.fma.f16(half %mul, half %a, half %c)
37  ret half %0
38}
39
40define half @fnms16(half %a, half %b, half %c) nounwind readnone ssp {
41; CHECK-LABEL: fnms16:
42; CHECK:       fnmsub h0, h0, h1, h2
43; CHECK-NEXT:  ret
44entry:
45  %mul = fneg half %c
46  %0 = tail call half @llvm.fma.f16(half %a, half %b, half %mul)
47  ret half %0
48}
49
50define half @test_fmsub(half %a, half %b, half %c) {
51; CHECK-LABEL: test_fmsub:
52; CHECK:       fmsub h0, h0, h1, h2
53; CHECK-NEXT:  ret
54entry:
55  %nega = fsub half -0.0, %a
56  %val = call half @llvm.fma.f16(half %nega, half %b, half %c)
57  ret half %val
58}
59
60define half @test_fnmadd(half %a, half %b, half %c) {
61; CHECK-LABEL: test_fnmadd:
62; CHECK:       fnmadd h0, h0, h1, h2
63; CHECK-NEXT:  ret
64entry:
65  %nega = fsub half -0.0, %a
66  %negc = fsub half -0.0, %c
67  %val = call half @llvm.fma.f16(half %nega, half %b, half %negc)
68  ret half %val
69}
70
71define half @test_fmadd(half %a, half %b, half %c) {
72; CHECK-LABEL: test_fmadd:
73; CHECK:       fmadd h0, h0, h1, h2
74; CHECK-NEXT:  ret
75entry:
76  %nega = fsub half -0.0, %a
77  %negb = fsub half -0.0, %b
78  %val = call half @llvm.fma.f16(half %nega, half %negb, half %c)
79  ret half %val
80}
81
82define half @test_fnmsub(half %a, half %b, half %c) {
83; CHECK-LABEL: test_fnmsub:
84; CHECK:       fnmsub h0, h0, h1, h2
85; CHECK-NEXT:  ret
86entry:
87  %negc = fsub half -0.0, %c
88  %val = call half @llvm.fma.f16(half %a, half %b, half %negc)
89  ret half %val
90}
91
92declare half @llvm.fma.f16(half, half, half)
93