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 // RUN: %clang -std=c++11 --target=x86_64 -S -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-X86 3 4 /* Various contexts where type _Float16 can appear. */ 5 6 7 /* Namespace */ 8 9 namespace { 10 _Float16 f1n; 11 // CHECK-DAG: @_ZN12_GLOBAL__N_13f1nE = internal global half 0xH0000, align 2 12 13 _Float16 f2n = 33.f16; 14 // CHECK-DAG: @_ZN12_GLOBAL__N_13f2nE = internal global half 0xH5020, align 2 15 16 _Float16 arr1n[10]; 17 // CHECK-AARCH64-DAG: @_ZN12_GLOBAL__N_15arr1nE = internal global [10 x half] zeroinitializer, align 2 18 // CHECK-X86-DAG: @_ZN12_GLOBAL__N_15arr1nE = internal global [10 x half] zeroinitializer, align 16 19 20 _Float16 arr2n[] = { 1.2, 3.0, 3.e4 }; 21 // CHECK-DAG: @_ZN12_GLOBAL__N_15arr2nE = internal global [3 x half] [half 0xH3CCD, half 0xH4200, half 0xH7753], align 2 22 23 const volatile _Float16 func1n(const _Float16 &arg) { 24 return arg + f2n + arr1n[4] - arr2n[1]; 25 } 26 } 27 28 29 /* File */ 30 31 _Float16 f1f; 32 // CHECK-AARCH64-DAG: @f1f = global half 0xH0000, align 2 33 // CHECK-X86-DAG: @f1f = global half 0xH0000, align 2 34 35 _Float16 f2f = 32.4; 36 // CHECK-DAG: @f2f = global half 0xH500D, align 2 37 38 _Float16 arr1f[10]; 39 // CHECK-AARCH64-DAG: @arr1f = global [10 x half] zeroinitializer, align 2 40 // CHECK-X86-DAG: @arr1f = global [10 x half] zeroinitializer, align 16 41 42 _Float16 arr2f[] = { -1.2, -3.0, -3.e4 }; 43 // CHECK-DAG: @arr2f = global [3 x half] [half 0xHBCCD, half 0xHC200, half 0xHF753], align 2 44 45 _Float16 func1f(_Float16 arg); 46 47 48 /* Class */ 49 50 class C1 { 51 _Float16 f1c; 52 53 static const _Float16 f2c; 54 // CHECK-DAG: @_ZN2C13f2cE = external constant half, align 2 55 56 volatile _Float16 f3c; 57 58 public: 59 C1(_Float16 arg) : f1c(arg), f3c(arg) { } 60 // Check that we mangle _Float16 to DF16_ 61 // CHECK-DAG: define linkonce_odr void @_ZN2C1C2EDF16_(%class.C1*{{.*}}, half{{.*}}) 62 63 _Float16 func1c(_Float16 arg ) { 64 return f1c + arg; 65 } 66 // CHECK-DAG: define linkonce_odr half @_ZN2C16func1cEDF16_(%class.C1*{{.*}}, half{{.*}}) 67 68 static _Float16 func2c(_Float16 arg) { 69 return arg * C1::f2c; 70 } 71 // CHECK-DAG: define linkonce_odr half @_ZN2C16func2cEDF16_(half{{.*}}) 72 }; 73 74 /* Template */ 75 76 template <class C> C func1t(C arg) { 77 return arg * 2.f16; 78 } 79 // CHECK-DAG: define linkonce_odr half @_Z6func1tIDF16_ET_S0_(half{{.*}}) 80 81 template <class C> struct S1 { 82 C mem1; 83 }; 84 85 template <> struct S1<_Float16> { 86 _Float16 mem2; 87 }; 88 89 90 /* Local */ 91 92 extern int printf (const char *__restrict __format, ...); 93 94 int main(void) { 95 _Float16 f1l = 1e3f16; 96 // CHECK-DAG: store half 0xH63D0, half* %{{.*}}, align 2 97 98 _Float16 f2l = -0.f16; 99 // CHECK-DAG: store half 0xH8000, half* %{{.*}}, align 2 100 101 _Float16 f3l = 1.000976562; 102 // CHECK-DAG: store half 0xH3C01, half* %{{.*}}, align 2 103 104 C1 c1(f1l); 105 // CHECK-DAG: [[F1L:%[a-z0-9]+]] = load half, half* %{{.*}}, align 2 106 // CHECK-DAG: call void @_ZN2C1C2EDF16_(%class.C1* %{{.*}}, half %{{.*}}) 107 108 S1<_Float16> s1 = { 132.f16 }; 109 // CHECK-DAG: @_ZZ4mainE2s1 = private unnamed_addr constant %struct.S1 { half 0xH5820 }, align 2 110 // CHECK-DAG: [[S1:%[0-9]+]] = bitcast %struct.S1* %{{.*}} to i8* 111 // CHECK-DAG: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 2 [[S1]], i8* align 2 bitcast (%struct.S1* @_ZZ4mainE2s1 to i8*), i64 2, i1 false) 112 113 _Float16 f4l = func1n(f1l) + func1f(f2l) + c1.func1c(f3l) + c1.func2c(f1l) + 114 func1t(f1l) + s1.mem2 - f1n + f2n; 115 116 auto f5l = -1.f16, *f6l = &f2l, f7l = func1t(f3l); 117 // CHECK-DAG: store half 0xHBC00, half* %{{.*}}, align 2 118 // CHECK-DAG: store half* %{{.*}}, half** %{{.*}}, align 8 119 120 _Float16 f8l = f4l++; 121 // CHECK-DAG: %{{.*}} = load half, half* %{{.*}}, align 2 122 // CHECK-DAG: [[INC:%[a-z0-9]+]] = fadd half {{.*}}, 0xH3C00 123 // CHECK-DAG: store half [[INC]], half* %{{.*}}, align 2 124 125 _Float16 arr1l[] = { -1.f16, -0.f16, -11.f16 }; 126 // CHECK-DAG: @_ZZ4mainE5arr1l = private unnamed_addr constant [3 x half] [half 0xHBC00, half 0xH8000, half 0xHC980], align 2 127 128 float cvtf = f2n; 129 //CHECK-DAG: [[H2F:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to float 130 //CHECK-DAG: store float [[H2F]], float* %{{.*}}, align 4 131 132 double cvtd = f2n; 133 //CHECK-DAG: [[H2D:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to double 134 //CHECK-DAG: store double [[H2D]], double* %{{.*}}, align 8 135 136 137 long double cvtld = f2n; 138 //CHECK-AARCh64-DAG: [[H2LD:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to fp128 139 //CHECK-AARCh64-DAG: store fp128 [[H2LD]], fp128* %{{.*}}, align 16 140 //CHECK-X86-DAG: [[H2LD:%[a-z0-9]+]] = fpext half {{%[0-9]+}} to x86_fp80 141 //CHECK-X86-DAG: store x86_fp80 [[H2LD]], x86_fp80* %{{.*}}, align 16 142 143 _Float16 f2h = 42.0f; 144 //CHECK-DAG: store half 0xH5140, half* %{{.*}}, align 2 145 _Float16 d2h = 42.0; 146 //CHECK-DAG: store half 0xH5140, half* %{{.*}}, align 2 147 _Float16 ld2h = 42.0l; 148 //CHECK-DAG:store half 0xH5140, half* %{{.*}}, align 2 149 } 150