1 // RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv7-apple-ios -std=c11 | FileCheck %s 2 3 // There isn't really anything special about iOS; it just happens to 4 // only deploy on processors with native atomics support, so it's a good 5 // way to test those code-paths. 6 7 // This work was done in pursuit of <rdar://13338582>. 8 9 // CHECK-LABEL: define arm_aapcscc void @testFloat(float* 10 void testFloat(_Atomic(float) *fp) { 11 // CHECK: [[FP:%.*]] = alloca float* 12 // CHECK-NEXT: [[X:%.*]] = alloca float 13 // CHECK-NEXT: [[F:%.*]] = alloca float 14 // CHECK-NEXT: store float* {{%.*}}, float** [[FP]] 15 16 // CHECK-NEXT: [[T0:%.*]] = load float** [[FP]] 17 // CHECK-NEXT: store float 1.000000e+00, float* [[T0]], align 4 18 __c11_atomic_init(fp, 1.0f); 19 20 // CHECK-NEXT: store float 2.000000e+00, float* [[X]], align 4 21 _Atomic(float) x = 2.0f; 22 23 // CHECK-NEXT: [[T0:%.*]] = load float** [[FP]] 24 // CHECK-NEXT: [[T1:%.*]] = bitcast float* [[T0]] to i32* 25 // CHECK-NEXT: [[T2:%.*]] = load atomic i32* [[T1]] seq_cst, align 4 26 // CHECK-NEXT: [[T3:%.*]] = bitcast i32 [[T2]] to float 27 // CHECK-NEXT: store float [[T3]], float* [[F]] 28 float f = *fp; 29 30 // CHECK-NEXT: [[T0:%.*]] = load float* [[F]], align 4 31 // CHECK-NEXT: [[T1:%.*]] = load float** [[FP]], align 4 32 // CHECK-NEXT: [[T2:%.*]] = bitcast float [[T0]] to i32 33 // CHECK-NEXT: [[T3:%.*]] = bitcast float* [[T1]] to i32* 34 // CHECK-NEXT: store atomic i32 [[T2]], i32* [[T3]] seq_cst, align 4 35 *fp = f; 36 37 // CHECK-NEXT: ret void 38 } 39 40 // CHECK: define arm_aapcscc void @testComplexFloat([[CF:{ float, float }]]* 41 void testComplexFloat(_Atomic(_Complex float) *fp) { 42 // CHECK: [[FP:%.*]] = alloca [[CF]]*, align 4 43 // CHECK-NEXT: [[X:%.*]] = alloca [[CF]], align 8 44 // CHECK-NEXT: [[F:%.*]] = alloca [[CF]], align 4 45 // CHECK-NEXT: [[TMP0:%.*]] = alloca [[CF]], align 8 46 // CHECK-NEXT: [[TMP1:%.*]] = alloca [[CF]], align 8 47 // CHECK-NEXT: store [[CF]]* 48 49 // CHECK-NEXT: [[P:%.*]] = load [[CF]]** [[FP]] 50 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[P]], i32 0, i32 0 51 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[P]], i32 0, i32 1 52 // CHECK-NEXT: store float 1.000000e+00, float* [[T0]] 53 // CHECK-NEXT: store float 0.000000e+00, float* [[T1]] 54 __c11_atomic_init(fp, 1.0f); 55 56 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[X]], i32 0, i32 0 57 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[X]], i32 0, i32 1 58 // CHECK-NEXT: store float 2.000000e+00, float* [[T0]] 59 // CHECK-NEXT: store float 0.000000e+00, float* [[T1]] 60 _Atomic(_Complex float) x = 2.0f; 61 62 // CHECK-NEXT: [[T0:%.*]] = load [[CF]]** [[FP]] 63 // CHECK-NEXT: [[T1:%.*]] = bitcast [[CF]]* [[T0]] to i64* 64 // CHECK-NEXT: [[T2:%.*]] = load atomic i64* [[T1]] seq_cst, align 8 65 // CHECK-NEXT: [[T3:%.*]] = bitcast [[CF]]* [[TMP0]] to i64* 66 // CHECK-NEXT: store i64 [[T2]], i64* [[T3]], align 8 67 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[TMP0]], i32 0, i32 0 68 // CHECK-NEXT: [[R:%.*]] = load float* [[T0]] 69 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[TMP0]], i32 0, i32 1 70 // CHECK-NEXT: [[I:%.*]] = load float* [[T0]] 71 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 0 72 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 1 73 // CHECK-NEXT: store float [[R]], float* [[T0]] 74 // CHECK-NEXT: store float [[I]], float* [[T1]] 75 _Complex float f = *fp; 76 77 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 0 78 // CHECK-NEXT: [[R:%.*]] = load float* [[T0]] 79 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[F]], i32 0, i32 1 80 // CHECK-NEXT: [[I:%.*]] = load float* [[T0]] 81 // CHECK-NEXT: [[DEST:%.*]] = load [[CF]]** [[FP]], align 4 82 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[CF]]* [[TMP1]], i32 0, i32 0 83 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[CF]]* [[TMP1]], i32 0, i32 1 84 // CHECK-NEXT: store float [[R]], float* [[T0]] 85 // CHECK-NEXT: store float [[I]], float* [[T1]] 86 // CHECK-NEXT: [[T0:%.*]] = bitcast [[CF]]* [[TMP1]] to i64* 87 // CHECK-NEXT: [[T1:%.*]] = load i64* [[T0]], align 8 88 // CHECK-NEXT: [[T2:%.*]] = bitcast [[CF]]* [[DEST]] to i64* 89 // CHECK-NEXT: store atomic i64 [[T1]], i64* [[T2]] seq_cst, align 8 90 *fp = f; 91 92 // CHECK-NEXT: ret void 93 } 94 95 typedef struct { short x, y, z, w; } S; 96 // CHECK: define arm_aapcscc void @testStruct([[S:.*]]* 97 void testStruct(_Atomic(S) *fp) { 98 // CHECK: [[FP:%.*]] = alloca [[S]]*, align 4 99 // CHECK-NEXT: [[X:%.*]] = alloca [[S]], align 8 100 // CHECK-NEXT: [[F:%.*]] = alloca [[S:%.*]], align 2 101 // CHECK-NEXT: [[TMP0:%.*]] = alloca [[S]], align 8 102 // CHECK-NEXT: store [[S]]* 103 104 // CHECK-NEXT: [[P:%.*]] = load [[S]]** [[FP]] 105 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 0 106 // CHECK-NEXT: store i16 1, i16* [[T0]], align 2 107 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 1 108 // CHECK-NEXT: store i16 2, i16* [[T0]], align 2 109 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 2 110 // CHECK-NEXT: store i16 3, i16* [[T0]], align 2 111 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[P]], i32 0, i32 3 112 // CHECK-NEXT: store i16 4, i16* [[T0]], align 2 113 __c11_atomic_init(fp, (S){1,2,3,4}); 114 115 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 0 116 // CHECK-NEXT: store i16 1, i16* [[T0]], align 2 117 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 1 118 // CHECK-NEXT: store i16 2, i16* [[T0]], align 2 119 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 2 120 // CHECK-NEXT: store i16 3, i16* [[T0]], align 2 121 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[S]]* [[X]], i32 0, i32 3 122 // CHECK-NEXT: store i16 4, i16* [[T0]], align 2 123 _Atomic(S) x = (S){1,2,3,4}; 124 125 // CHECK-NEXT: [[T0:%.*]] = load [[S]]** [[FP]] 126 // CHECK-NEXT: [[T1:%.*]] = bitcast [[S]]* [[T0]] to i64* 127 // CHECK-NEXT: [[T2:%.*]] = load atomic i64* [[T1]] seq_cst, align 8 128 // CHECK-NEXT: [[T3:%.*]] = bitcast [[S]]* [[F]] to i64* 129 // CHECK-NEXT: store i64 [[T2]], i64* [[T3]], align 2 130 S f = *fp; 131 132 // CHECK-NEXT: [[T0:%.*]] = load [[S]]** [[FP]] 133 // CHECK-NEXT: [[T1:%.*]] = bitcast [[S]]* [[TMP0]] to i8* 134 // CHECK-NEXT: [[T2:%.*]] = bitcast [[S]]* [[F]] to i8* 135 // CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[T1]], i8* [[T2]], i32 8, i32 2, i1 false) 136 // CHECK-NEXT: [[T3:%.*]] = bitcast [[S]]* [[TMP0]] to i64* 137 // CHECK-NEXT: [[T4:%.*]] = load i64* [[T3]], align 8 138 // CHECK-NEXT: [[T5:%.*]] = bitcast [[S]]* [[T0]] to i64* 139 // CHECK-NEXT: store atomic i64 [[T4]], i64* [[T5]] seq_cst, align 8 140 *fp = f; 141 142 // CHECK-NEXT: ret void 143 } 144 145 typedef struct { short x, y, z; } PS; 146 // CHECK: define arm_aapcscc void @testPromotedStruct([[APS:.*]]* 147 void testPromotedStruct(_Atomic(PS) *fp) { 148 // CHECK: [[FP:%.*]] = alloca [[APS]]*, align 4 149 // CHECK-NEXT: [[X:%.*]] = alloca [[APS]], align 8 150 // CHECK-NEXT: [[F:%.*]] = alloca [[PS:%.*]], align 2 151 // CHECK-NEXT: [[TMP0:%.*]] = alloca [[APS]], align 8 152 // CHECK-NEXT: [[TMP1:%.*]] = alloca [[APS]], align 8 153 // CHECK-NEXT: store [[APS]]* 154 155 // CHECK-NEXT: [[P:%.*]] = load [[APS]]** [[FP]] 156 // CHECK-NEXT: [[T0:%.*]] = bitcast [[APS]]* [[P]] to i8* 157 // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 8, i32 8, i1 false) 158 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[APS]]* [[P]], i32 0, i32 0 159 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 0 160 // CHECK-NEXT: store i16 1, i16* [[T1]], align 2 161 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 1 162 // CHECK-NEXT: store i16 2, i16* [[T1]], align 2 163 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 2 164 // CHECK-NEXT: store i16 3, i16* [[T1]], align 2 165 __c11_atomic_init(fp, (PS){1,2,3}); 166 167 // CHECK-NEXT: [[T0:%.*]] = bitcast [[APS]]* [[X]] to i8* 168 // CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[T0]], i8 0, i32 8, i32 8, i1 false) 169 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[APS]]* [[X]], i32 0, i32 0 170 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 0 171 // CHECK-NEXT: store i16 1, i16* [[T1]], align 2 172 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 1 173 // CHECK-NEXT: store i16 2, i16* [[T1]], align 2 174 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[PS]]* [[T0]], i32 0, i32 2 175 // CHECK-NEXT: store i16 3, i16* [[T1]], align 2 176 _Atomic(PS) x = (PS){1,2,3}; 177 178 // CHECK-NEXT: [[T0:%.*]] = load [[APS]]** [[FP]] 179 // CHECK-NEXT: [[T1:%.*]] = bitcast [[APS]]* [[T0]] to i64* 180 // CHECK-NEXT: [[T2:%.*]] = load atomic i64* [[T1]] seq_cst, align 8 181 // CHECK-NEXT: [[T3:%.*]] = bitcast [[APS]]* [[TMP0]] to i64* 182 // CHECK-NEXT: store i64 [[T2]], i64* [[T3]], align 2 183 // CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[APS]]* [[TMP0]], i32 0, i32 0 184 // CHECK-NEXT: [[T1:%.*]] = bitcast [[PS]]* [[F]] to i8* 185 // CHECK-NEXT: [[T2:%.*]] = bitcast [[PS]]* [[T0]] to i8* 186 // CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[T1]], i8* [[T2]], i32 6, i32 2, i1 false) 187 PS f = *fp; 188 189 // CHECK-NEXT: [[T0:%.*]] = load [[APS]]** [[FP]] 190 // CHECK-NEXT: [[T1:%.*]] = bitcast { %struct.PS, [2 x i8] }* [[TMP1]] to i8* 191 // CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* [[T1]], i8 0, i32 8, i32 8, i1 false) 192 // CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[APS]]* [[TMP1]], i32 0, i32 0 193 // CHECK-NEXT: [[T2:%.*]] = bitcast [[PS]]* [[T1]] to i8* 194 // CHECK-NEXT: [[T3:%.*]] = bitcast [[PS]]* [[F]] to i8* 195 // CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* [[T2]], i8* [[T3]], i32 6, i32 2, i1 false) 196 // CHECK-NEXT: [[T4:%.*]] = bitcast [[APS]]* [[TMP1]] to i64* 197 // CHECK-NEXT: [[T5:%.*]] = load i64* [[T4]], align 8 198 // CHECK-NEXT: [[T6:%.*]] = bitcast [[APS]]* [[T0]] to i64* 199 // CHECK-NEXT: store atomic i64 [[T5]], i64* [[T6]] seq_cst, align 8 200 *fp = f; 201 202 // CHECK-NEXT: ret void 203 } 204 205 void testPromotedStructOps(_Atomic(PS) *p) { 206 PS a = __c11_atomic_load(p, 5); 207 __c11_atomic_store(p, a, 5); 208 PS b = __c11_atomic_exchange(p, a, 5); 209 210 _Bool v = __c11_atomic_compare_exchange_strong(p, &b, a, 5, 5); 211 v = __c11_atomic_compare_exchange_weak(p, &b, a, 5, 5); 212 } 213
