1 // RUN: %clang -std=c++11 --target=aarch64-arm--eabi -S -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-AARCH64
2
3 /* Various contexts where type _Float16 can appear. */
4
5
6 /* Namespace */
7
8 namespace {
9 _Float16 f1n;
10 // CHECK-DAG: @_ZN12_GLOBAL__N_13f1nE = internal global half 0xH0000, align 2
11
12 _Float16 f2n = 33.f16;
13 // CHECK-DAG: @_ZN12_GLOBAL__N_13f2nE = internal global half 0xH5020, align 2
14
15 _Float16 arr1n[10];
16 // CHECK-AARCH64-DAG: @_ZN12_GLOBAL__N_15arr1nE = internal global [10 x half] zeroinitializer, align 2
17
18 _Float16 arr2n[] = { 1.2, 3.0, 3.e4 };
19 // CHECK-DAG: @_ZN12_GLOBAL__N_15arr2nE = internal global [3 x half] [half 0xH3CCD, half 0xH4200, half 0xH7753], align 2
20
func1n(const _Float16 & arg)21 const volatile _Float16 func1n(const _Float16 &arg) {
22 return arg + f2n + arr1n[4] - arr2n[1];
23 }
24 }
25
26
27 /* File */
28
29 _Float16 f1f;
30 // CHECK-AARCH64-DAG: @f1f = dso_local global half 0xH0000, align 2
31
32 _Float16 f2f = 32.4;
33 // CHECK-DAG: @f2f = dso_local global half 0xH500D, align 2
34
35 _Float16 arr1f[10];
36 // CHECK-AARCH64-DAG: @arr1f = dso_local global [10 x half] zeroinitializer, align 2
37
38 _Float16 arr2f[] = { -1.2, -3.0, -3.e4 };
39 // CHECK-DAG: @arr2f = dso_local global [3 x half] [half 0xHBCCD, half 0xHC200, half 0xHF753], align 2
40
41 _Float16 func1f(_Float16 arg);
42
43
44 /* Class */
45
46 class C1 {
47 _Float16 f1c;
48
49 static const _Float16 f2c;
50 // CHECK-DAG: @_ZN2C13f2cE = external dso_local constant half, align 2
51
52 volatile _Float16 f3c;
53
54 public:
C1(_Float16 arg)55 C1(_Float16 arg) : f1c(arg), f3c(arg) { }
56 // Check that we mangle _Float16 to DF16_
57 // CHECK-DAG: define linkonce_odr dso_local void @_ZN2C1C2EDF16_(%class.C1*{{.*}}, half{{.*}})
58
func1c(_Float16 arg)59 _Float16 func1c(_Float16 arg ) {
60 return f1c + arg;
61 }
62 // CHECK-DAG: define linkonce_odr dso_local half @_ZN2C16func1cEDF16_(%class.C1*{{.*}}, half{{.*}})
63
func2c(_Float16 arg)64 static _Float16 func2c(_Float16 arg) {
65 return arg * C1::f2c;
66 }
67 // CHECK-DAG: define linkonce_odr dso_local half @_ZN2C16func2cEDF16_(half{{.*}})
68 };
69
70 /* Template */
71
func1t(C arg)72 template <class C> C func1t(C arg) {
73 return arg * 2.f16;
74 }
75 // CHECK-DAG: define linkonce_odr dso_local half @_Z6func1tIDF16_ET_S0_(half{{.*}})
76
77 template <class C> struct S1 {
78 C mem1;
79 };
80
81 template <> struct S1<_Float16> {
82 _Float16 mem2;
83 };
84
85
86 /* Local */
87
88 extern int printf (const char *__restrict __format, ...);
89
main(void)90 int main(void) {
91 _Float16 f1l = 1e3f16;
92 // CHECK-DAG: store half 0xH63D0, half* %{{.*}}, align 2
93
94 _Float16 f2l = -0.f16;
95 // CHECK-DAG: store half 0xH8000, half* %{{.*}}, align 2
96
97 _Float16 f3l = 1.000976562;
98 // CHECK-DAG: store half 0xH3C01, half* %{{.*}}, align 2
99
100 C1 c1(f1l);
101 // CHECK-DAG: [[F1L:%[a-z0-9]+]] = load half, half* %{{.*}}, align 2
102 // CHECK-DAG: call void @_ZN2C1C2EDF16_(%class.C1* {{[^,]*}} %{{.*}}, half %{{.*}})
103
104 S1<_Float16> s1 = { 132.f16 };
105 // CHECK-DAG: @__const.main.s1 = private unnamed_addr constant %struct.S1 { half 0xH5820 }, align 2
106 // CHECK-DAG: [[S1:%[0-9]+]] = bitcast %struct.S1* %{{.*}} to i8*
107 // CHECK-DAG: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 2 [[S1]], i8* align 2 bitcast (%struct.S1* @__const.main.s1 to i8*), i64 2, i1 false)
108
109 _Float16 f4l = func1n(f1l) + func1f(f2l) + c1.func1c(f3l) + c1.func2c(f1l) +
110 func1t(f1l) + s1.mem2 - f1n + f2n;
111
112 auto f5l = -1.f16, *f6l = &f2l, f7l = func1t(f3l);
113 // CHECK-DAG: store half 0xHBC00, half* %{{.*}}, align 2
114 // CHECK-DAG: store half* %{{.*}}, half** %{{.*}}, align 8
115
116 _Float16 f8l = f4l++;
117 // CHECK-DAG: %{{.*}} = load half, half* %{{.*}}, align 2
118 // CHECK-DAG: [[INC:%[a-z0-9]+]] = fadd half {{.*}}, 0xH3C00
119 // CHECK-DAG: store half [[INC]], half* %{{.*}}, align 2
120
121 _Float16 arr1l[] = { -1.f16, -0.f16, -11.f16 };
122 // CHECK-DAG: @__const.main.arr1l = private unnamed_addr constant [3 x half] [half 0xHBC00, half 0xH8000, half 0xHC980], align 2
123
124 float cvtf = f2n;
125 //CHECK-DAG: [[H2F:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to float
126 //CHECK-DAG: store float [[H2F]], float* %{{.*}}, align 4
127
128 double cvtd = f2n;
129 //CHECK-DAG: [[H2D:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to double
130 //CHECK-DAG: store double [[H2D]], double* %{{.*}}, align 8
131
132
133 long double cvtld = f2n;
134 //CHECK-AARCh64-DAG: [[H2LD:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to fp128
135 //CHECK-AARCh64-DAG: store fp128 [[H2LD]], fp128* %{{.*}}, align 16
136
137 _Float16 f2h = 42.0f;
138 //CHECK-DAG: store half 0xH5140, half* %{{.*}}, align 2
139 _Float16 d2h = 42.0;
140 //CHECK-DAG: store half 0xH5140, half* %{{.*}}, align 2
141 _Float16 ld2h = 42.0l;
142 //CHECK-DAG:store half 0xH5140, half* %{{.*}}, align 2
143 }
144