clang/test/OpenMP/taskloop_private_codegen.cpp

   1 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp -x c++ -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck %s
   2 // RUN: %clang_cc1 -fopenmp -x c++ -std=c++11 -triple x86_64-apple-darwin10 -emit-pch -o %t %s
   3 // RUN: %clang_cc1 -fopenmp -x c++ -triple x86_64-apple-darwin10 -std=c++11 -include-pch %t -verify -Wno-vla %s -emit-llvm -o - | FileCheck %s
   4 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp -x c++ -std=c++11 -DLAMBDA -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=LAMBDA %s
   5 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp -x c++ -fblocks -DBLOCKS -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=BLOCKS %s
   6 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp -x c++ -std=c++11 -DARRAY -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=ARRAY %s
   7
   8 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -x c++ -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
   9 // RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-apple-darwin10 -emit-pch -o %t %s
  10 // RUN: %clang_cc1 -fopenmp-simd -x c++ -triple x86_64-apple-darwin10 -std=c++11 -include-pch %t -verify -Wno-vla %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
  11 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -x c++ -std=c++11 -DLAMBDA -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
  12 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -x c++ -fblocks -DBLOCKS -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
  13 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -x c++ -std=c++11 -DARRAY -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
  14 // SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
  15 // expected-no-diagnostics
  16
  17 #ifndef ARRAY
  18 #ifndef HEADER
  19 #define HEADER
  20
  21 template <class T>
  22 struct S {
  23   T f;
  24   S(T a) : f(a) {}
  25   S() : f() {}
  26   operator T() { return T(); }
  27   ~S() {}
  28 };
  29
  30 volatile double g;
  31
  32 // CHECK-DAG: [[KMP_TASK_T_TY:%.+]] = type { ptr, ptr, i32, %union{{.+}}, %union{{.+}}, i64, i64, i64, i32, ptr }
  33 // CHECK-DAG: [[S_DOUBLE_TY:%.+]] = type { double }
  34 // CHECK-DAG: [[CAP_MAIN_TY:%.+]] = type { i8 }
  35 // CHECK-DAG: [[PRIVATES_MAIN_TY:%.+]] = type {{.?}}{ [2 x [[S_DOUBLE_TY]]], [[S_DOUBLE_TY]], i32, [2 x i32]
  36 // CHECK-DAG: [[KMP_TASK_MAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [[PRIVATES_MAIN_TY]] }
  37 // CHECK-DAG: [[S_INT_TY:%.+]] = type { i32 }
  38 // CHECK-DAG: [[CAP_TMAIN_TY:%.+]] = type { i8 }
  39 // CHECK-DAG: [[PRIVATES_TMAIN_TY:%.+]] = type { i32, [2 x i32], [2 x [[S_INT_TY]]], [[S_INT_TY]], [104 x i8] }
  40 // CHECK-DAG: [[KMP_TASK_TMAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [{{[0-9]+}} x i8], [[PRIVATES_TMAIN_TY]] }
  41 template <typename T>
  42 T tmain() {
  43   S<T> test;
  44   T t_var __attribute__((aligned(128))) = T();
  45   T vec[] = {1, 2};
  46   S<T> s_arr[] = {1, 2};
  47   S<T> var(3);
  48 #pragma omp taskloop private(t_var, vec, s_arr, s_arr, var, var)
  49   for (int i = 0; i < 10; ++i) {
  50     vec[0] = t_var;
  51     s_arr[0] = var;
  52   }
  53   return T();
  54 }
  55
  56 int main() {
  57   static int sivar;
  58 #ifdef LAMBDA
  59   // LAMBDA: [[G:@.+]] ={{.*}} global double
  60   // LAMBDA-LABEL: @main
  61   // LAMBDA: call{{( x86_thiscallcc)?}} void [[OUTER_LAMBDA:@.+]](
  62   [&]() {
  63   // LAMBDA: define{{.*}} internal{{.*}} void [[OUTER_LAMBDA]](
  64   // LAMBDA: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 96, i64 1, ptr [[TASK_ENTRY:@[^ ]+]])
  65 // LAMBDA: [[PRIVATES:%.+]] = getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i{{.+}} 0, i{{.+}} 1
  66 // LAMBDA: call void @__kmpc_taskloop(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]], i32 1, ptr %{{.+}}, ptr %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, ptr null)
  67 // LAMBDA: ret
  68 #pragma omp taskloop private(g, sivar)
  69   for (int i = 0; i < 10; ++i) {
  70     // LAMBDA: define {{.+}} void [[INNER_LAMBDA:@.+]]({{.+}} [[ARG_PTR:%.+]])
  71     // LAMBDA: store ptr [[ARG_PTR]], ptr [[ARG_PTR_REF:%.+]],
  72     // LAMBDA: [[ARG_PTR:%.+]] = load ptr, ptr [[ARG_PTR_REF]]
  73     // LAMBDA: [[G_PTR_REF:%.+]] = getelementptr inbounds nuw %{{.+}}, ptr [[ARG_PTR]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
  74     // LAMBDA: [[G_REF:%.+]] = load ptr, ptr [[G_PTR_REF]]
  75     // LAMBDA: store double 2.0{{.+}}, ptr [[G_REF]]
  76     // LAMBDA: [[SIVAR_PTR_REF:%.+]] = getelementptr inbounds nuw %{{.+}}, ptr [[ARG_PTR]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
  77     // LAMBDA: [[SIVAR_REF:%.+]] = load ptr, ptr [[SIVAR_PTR_REF]]
  78     // LAMBDA: store i{{[0-9]+}} 3, ptr [[SIVAR_REF]]
  79
  80     // LAMBDA: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
  81     g = 1;
  82     sivar = 2;
  83     // LAMBDA: store double 1.0{{.+}}, ptr %{{.+}},
  84     // LAMBDA: store i{{[0-9]+}} 2, ptr %{{.+}},
  85     // LAMBDA: call void [[INNER_LAMBDA]]({{.+}}
  86     // LAMBDA: ret
  87     [&]() {
  88       g = 2;
  89       sivar = 3;
  90     }();
  91   }
  92   }();
  93   return 0;
  94 #elif defined(BLOCKS)
  95   // BLOCKS: [[G:@.+]] ={{.*}} global double
  96   // BLOCKS: [[SIVAR:@.+]] = internal global i{{[0-9]+}} 0,
  97   // BLOCKS-LABEL: @main
  98   // BLOCKS: call void {{%.+}}(ptr
  99   ^{
 100   // BLOCKS: define{{.*}} internal{{.*}} void {{.+}}(ptr
 101   // BLOCKS: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 96, i64 1, ptr [[TASK_ENTRY:@[^ ]+]])
 102   // BLOCKS: [[PRIVATES:%.+]] = getelementptr inbounds nuw %{{.+}}, ptr %{{.+}}, i{{.+}} 0, i{{.+}} 1
 103   // BLOCKS: call void @__kmpc_taskloop(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]], i32 1, ptr %{{.+}}, ptr %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, ptr null)
 104   // BLOCKS: ret
 105 #pragma omp taskloop private(g, sivar)
 106   for (int i = 0; i < 10; ++i) {
 107     // BLOCKS: define {{.+}} void {{@.+}}(ptr
 108     // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
 109     // BLOCKS: store double 2.0{{.+}}, ptr
 110     // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
 111     // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
 112     // BLOCKS: store i{{[0-9]+}} 4, ptr
 113     // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
 114     // BLOCKS: ret
 115
 116     // BLOCKS: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
 117     g = 1;
 118     sivar = 3;
 119     // BLOCKS: store double 1.0{{.+}}, ptr %{{.+}},
 120     // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
 121     // BLOCKS: store i{{[0-9]+}} 3, ptr %{{.+}},
 122     // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
 123     // BLOCKS: call void {{%.+}}(ptr
 124     ^{
 125       g = 2;
 126       sivar = 4;
 127     }();
 128   }
 129   }();
 130   return 0;
 131 #else
 132   S<double> test;
 133   int t_var = 0;
 134   int vec[] = {1, 2};
 135   S<double> s_arr[] = {1, 2};
 136   S<double> var(3);
 137 #pragma omp taskloop private(var, t_var, s_arr, vec, s_arr, var, sivar)
 138   for (int i = 0; i < 10; ++i) {
 139     vec[0] = t_var;
 140     s_arr[0] = var;
 141     sivar = 8;
 142   }
 143 #pragma omp task
 144   g+=1;
 145   return tmain<int>();
 146 #endif
 147 }
 148
 149 // CHECK: define{{.*}} i{{[0-9]+}} @main()
 150 // CHECK: [[TEST:%.+]] = alloca [[S_DOUBLE_TY]],
 151 // CHECK: [[T_VAR_ADDR:%.+]] = alloca i32,
 152 // CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
 153 // CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_DOUBLE_TY]]],
 154 // CHECK: [[VAR_ADDR:%.+]] = alloca [[S_DOUBLE_TY]],
 155 // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC:@.+]])
 156
 157 // CHECK: call {{.*}} [[S_DOUBLE_TY_DEF_CONSTR:@.+]](ptr {{[^,]*}} [[TEST]])
 158
 159 // Do not store original variables in capture struct.
 160 // CHECK-NOT: getelementptr inbounds nuw [[CAP_MAIN_TY]],
 161
 162 // Allocate task.
 163 // Returns struct kmp_task_t {
 164 //         [[KMP_TASK_T_TY]] task_data;
 165 //         [[KMP_TASK_MAIN_TY]] privates;
 166 //       };
 167 // CHECK: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr [[LOC]], i32 [[GTID]], i32 9, i64 120, i64 1, ptr [[TASK_ENTRY:@[^ ]+]])
 168
 169 // CHECK: [[TASK:%.+]] = getelementptr inbounds nuw [[KMP_TASK_MAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 170 // Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
 171 // Also copy address of private copy to the corresponding shareds reference.
 172 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds nuw [[KMP_TASK_MAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
 173
 174 // Constructors for s_arr and var.
 175 // a_arr;
 176 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 177 // CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 178 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i{{.+}} 2
 179 // CHECK: call void [[S_DOUBLE_TY_DEF_CONSTR]](ptr {{[^,]*}} [[S_ARR_CUR:%.+]])
 180 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr [[S_ARR_CUR]], i{{.+}} 1
 181 // CHECK: icmp eq
 182 // CHECK: br i1
 183
 184 // var;
 185 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
 186 // CHECK: call void [[S_DOUBLE_TY_DEF_CONSTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF:%.+]])
 187
 188 // Provide pointer to destructor function, which will destroy private variables at the end of the task.
 189 // CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds nuw [[KMP_TASK_T_TY]], ptr [[TASK]], i{{.+}} 0, i{{.+}} 3
 190 // CHECK: store ptr [[DESTRUCTORS:@.+]], ptr [[DESTRUCTORS_REF]],
 191
 192 // Start task.
 193 // CHECK: call void @__kmpc_taskloop(ptr [[LOC]], i32 [[GTID]], ptr [[RES]], i32 1, ptr %{{.+}}, ptr %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, ptr [[MAIN_DUP:@.+]])
 194 // CHECK: call i32 @__kmpc_omp_task(ptr [[LOC]], i32 [[GTID]], ptr
 195
 196 // CHECK: = call noundef i{{.+}} [[TMAIN_INT:@.+]]()
 197
 198 // No destructors must be called for private copies of s_arr and var.
 199 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 200 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 201 // CHECK: call void [[S_DOUBLE_TY_DESTR:@.+]](ptr
 202 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 203 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 204 // CHECK: ret
 205 //
 206
 207 // CHECK: define internal void [[PRIVATES_MAP_FN:@.+]](ptr noalias noundef %0, ptr noalias noundef %1, ptr noalias noundef %2, ptr noalias noundef %3, ptr noalias noundef %4, ptr noalias noundef %5)
 208 // CHECK: [[PRIVATES:%.+]] = load ptr, ptr
 209 // CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 0
 210 // CHECK: [[ARG3:%.+]] = load ptr, ptr %{{.+}},
 211 // CHECK: store ptr [[PRIV_S_VAR]], ptr [[ARG3]],
 212 // CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 1
 213 // CHECK: [[ARG1:%.+]] = load ptr, ptr {{.+}},
 214 // CHECK: store ptr [[PRIV_VAR]], ptr [[ARG1]],
 215 // CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 2
 216 // CHECK: [[ARG2:%.+]] = load ptr, ptr %{{.+}},
 217 // CHECK: store ptr [[PRIV_T_VAR]], ptr [[ARG2]],
 218 // CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 3
 219 // CHECK: [[ARG4:%.+]] = load ptr, ptr %{{.+}},
 220 // CHECK: store ptr [[PRIV_VEC]], ptr [[ARG4]],
 221 // CHECK: ret void
 222
 223 // CHECK: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
 224
 225 // CHECK: %__context
 226 // CHECK: [[PRIV_VAR_ADDR:%.+]] = alloca ptr,
 227 // CHECK: [[PRIV_T_VAR_ADDR:%.+]] = alloca ptr,
 228 // CHECK: [[PRIV_S_ARR_ADDR:%.+]] = alloca ptr,
 229 // CHECK: [[PRIV_VEC_ADDR:%.+]] = alloca ptr,
 230 // CHECK: [[PRIV_SIVAR_ADDR:%.+]] = alloca ptr,
 231 // CHECK: store ptr [[PRIVATES_MAP_FN]], ptr [[MAP_FN_ADDR:%.+]],
 232 // CHECK: [[MAP_FN:%.+]] = load ptr, ptr [[MAP_FN_ADDR]],
 233 // CHECK: call void [[MAP_FN]](ptr %{{.+}}, ptr [[PRIV_VAR_ADDR]], ptr [[PRIV_T_VAR_ADDR]], ptr [[PRIV_S_ARR_ADDR]], ptr [[PRIV_VEC_ADDR]], ptr [[PRIV_SIVAR_ADDR]])
 234 // CHECK: [[PRIV_VAR:%.+]] = load ptr, ptr [[PRIV_VAR_ADDR]],
 235 // CHECK: [[PRIV_T_VAR:%.+]] = load ptr, ptr [[PRIV_T_VAR_ADDR]],
 236 // CHECK: [[PRIV_S_ARR:%.+]] = load ptr, ptr [[PRIV_S_ARR_ADDR]],
 237 // CHECK: [[PRIV_VEC:%.+]] = load ptr, ptr [[PRIV_VEC_ADDR]],
 238 // CHECK: [[PRIV_SIVAR:%.+]] = load ptr, ptr [[PRIV_SIVAR_ADDR]],
 239
 240 // Privates actually are used.
 241 // CHECK-DAG: [[PRIV_VAR]]
 242 // CHECK-DAG: [[PRIV_T_VAR]]
 243 // CHECK-DAG: [[PRIV_S_ARR]]
 244 // CHECK-DAG: [[PRIV_VEC]]
 245 // CHECK-DAG: [[PRIV_SIVAR]]
 246
 247 // CHECK: ret
 248
 249 // CHECK: define internal void [[MAIN_DUP]](ptr noundef %0, ptr noundef %1, i32 noundef %2)
 250 // CHECK: getelementptr inbounds nuw [[KMP_TASK_MAIN_TY]], ptr %{{.+}}, i32 0, i32 1
 251 // CHECK: getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr %{{.+}}, i32 0, i32 0
 252 // CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], ptr %{{.+}}, i32 0, i32 0
 253 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i64 2
 254 // CHECK: br label %
 255
 256 // CHECK: phi ptr
 257 // CHECK: call {{.*}} [[S_DOUBLE_TY_DEF_CONSTR]](ptr
 258 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i64 1
 259 // CHECK: icmp eq ptr %
 260 // CHECK: br i1 %
 261
 262 // CHECK: getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr %{{.+}}, i32 0, i32 1
 263 // CHECK: call {{.*}} [[S_DOUBLE_TY_DEF_CONSTR]](ptr
 264 // CHECK: ret void
 265
 266 // CHECK: define internal noundef i32 [[DESTRUCTORS]](i32 noundef %0, ptr noalias noundef %1)
 267 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds nuw [[KMP_TASK_MAIN_TY]], ptr [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
 268 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
 269 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
 270 // CHECK: call void [[S_DOUBLE_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF]])
 271 // CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 272 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i{{.+}} 2
 273 // CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i{{.+}} -1
 274 // CHECK: call void [[S_DOUBLE_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_S_ARR_ELEM_REF]])
 275 // CHECK: icmp eq
 276 // CHECK: br i1
 277 // CHECK: ret i32
 278
 279 // CHECK: define {{.*}} i{{[0-9]+}} [[TMAIN_INT]]()
 280 // CHECK: [[TEST:%.+]] = alloca [[S_INT_TY]],
 281 // CHECK: [[T_VAR_ADDR:%.+]] = alloca i32,
 282 // CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
 283 // CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]],
 284 // CHECK: [[VAR_ADDR:%.+]] = alloca [[S_INT_TY]],
 285 // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC:@.+]])
 286
 287 // CHECK: call {{.*}} [[S_INT_TY_DEF_CONSTR:@.+]](ptr {{[^,]*}} [[TEST]])
 288
 289 // Do not store original variables in capture struct.
 290 // CHECK-NOT: getelementptr inbounds nuw [[CAP_TMAIN_TY]],
 291
 292 // Allocate task.
 293 // Returns struct kmp_task_t {
 294 //         [[KMP_TASK_T_TY]] task_data;
 295 //         [[KMP_TASK_TMAIN_TY]] privates;
 296 //       };
 297 // CHECK: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr [[LOC]], i32 [[GTID]], i32 9, i64 256, i64 1, ptr [[TASK_ENTRY:@[^ ]+]])
 298
 299 // CHECK: [[TASK:%.+]] = getelementptr inbounds nuw [[KMP_TASK_TMAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 300
 301 // Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
 302 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds nuw [[KMP_TASK_TMAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
 303
 304 // Constructors for s_arr and var.
 305 // a_arr;
 306 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
 307 // CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 308 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i{{.+}} 2
 309 // CHECK: call void [[S_INT_TY_DEF_CONSTR]](ptr {{[^,]*}} [[S_ARR_CUR:%.+]])
 310 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr [[S_ARR_CUR]], i{{.+}} 1
 311 // CHECK: icmp eq
 312 // CHECK: br i1
 313
 314 // var;
 315 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 316 // CHECK: call void [[S_INT_TY_DEF_CONSTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF:%.+]])
 317
 318 // Provide pointer to destructor function, which will destroy private variables at the end of the task.
 319 // CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds nuw [[KMP_TASK_T_TY]], ptr [[TASK]], i{{.+}} 0, i{{.+}} 3
 320 // CHECK: store ptr [[DESTRUCTORS:@.+]], ptr [[DESTRUCTORS_REF]],
 321
 322 // Start task.
 323 // CHECK: call void @__kmpc_taskloop(ptr [[LOC]], i32 [[GTID]], ptr [[RES]], i32 1, ptr %{{.+}}, ptr %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, ptr [[TMAIN_DUP:@.+]])
 324
 325 // No destructors must be called for private copies of s_arr and var.
 326 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 327 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 328 // CHECK: call void [[S_INT_TY_DESTR:@.+]](ptr noundef
 329 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 330 // CHECK-NOT: getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 331 // CHECK: ret
 332 //
 333
 334 // CHECK: define internal void [[PRIVATES_MAP_FN:@.+]](ptr noalias noundef %0, ptr noalias noundef %1, ptr noalias noundef %2, ptr noalias noundef %3, ptr noalias noundef %4)
 335 // CHECK: [[PRIVATES:%.+]] = load ptr, ptr
 336 // CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 0
 337 // CHECK: [[ARG1:%.+]] = load ptr, ptr %{{.+}},
 338 // CHECK: store ptr [[PRIV_T_VAR]], ptr [[ARG1]],
 339 // CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 1
 340 // CHECK: [[ARG2:%.+]] = load ptr, ptr %{{.+}},
 341 // CHECK: store ptr [[PRIV_VEC]], ptr [[ARG2]],
 342 // CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 2
 343 // CHECK: [[ARG3:%.+]] = load ptr, ptr %{{.+}},
 344 // CHECK: store ptr [[PRIV_S_VAR]], ptr [[ARG3]],
 345 // CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 3
 346 // CHECK: [[ARG4:%.+]] = load ptr, ptr {{.+}},
 347 // CHECK: store ptr [[PRIV_VAR]], ptr [[ARG4]],
 348 // CHECK: ret void
 349
 350 // CHECK: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
 351
 352 // CHECK: %__context
 353 // CHECK-DAG: [[PRIV_T_VAR_ADDR:%.+]] = alloca ptr,
 354 // CHECK-DAG: [[PRIV_VEC_ADDR:%.+]] = alloca ptr,
 355 // CHECK-DAG: [[PRIV_S_ARR_ADDR:%.+]] = alloca ptr,
 356 // CHECK-DAG: [[PRIV_VAR_ADDR:%.+]] = alloca ptr,
 357 // CHECK: store ptr [[PRIVATES_MAP_FN]], ptr [[MAP_FN_ADDR:%.+]],
 358 // CHECK: [[MAP_FN:%.+]] = load ptr, ptr [[MAP_FN_ADDR]],
 359 // CHECK: call void [[MAP_FN]](ptr %{{.+}}, ptr [[PRIV_T_VAR_ADDR]], ptr [[PRIV_VEC_ADDR]], ptr [[PRIV_S_ARR_ADDR]], ptr [[PRIV_VAR_ADDR]])
 360 // CHECK: [[PRIV_T_VAR:%.+]] = load ptr, ptr [[PRIV_T_VAR_ADDR]],
 361 // CHECK: [[PRIV_VEC:%.+]] = load ptr, ptr [[PRIV_VEC_ADDR]],
 362 // CHECK: [[PRIV_S_ARR:%.+]] = load ptr, ptr [[PRIV_S_ARR_ADDR]],
 363 // CHECK: [[PRIV_VAR:%.+]] = load ptr, ptr [[PRIV_VAR_ADDR]],
 364
 365 // Privates actually are used.
 366 // CHECK-DAG: [[PRIV_VAR]]
 367 // CHECK-DAG: [[PRIV_T_VAR]]
 368 // CHECK-DAG: [[PRIV_S_ARR]]
 369 // CHECK-DAG: [[PRIV_VEC]]
 370
 371 // CHECK: ret
 372
 373 // CHECK: define internal void [[TMAIN_DUP]](ptr noundef %0, ptr noundef %1, i32 noundef %2)
 374 // CHECK: getelementptr inbounds nuw [[KMP_TASK_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 2
 375 // CHECK: getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 2
 376 // CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], ptr %{{.+}}, i32 0, i32 0
 377 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i64 2
 378 // CHECK: br label %
 379
 380 // CHECK: phi ptr
 381 // CHECK: call {{.*}} [[S_INT_TY_DEF_CONSTR]](ptr
 382 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i64 1
 383 // CHECK: icmp eq ptr %
 384 // CHECK: br i1 %
 385
 386 // CHECK: getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 3
 387 // CHECK: call {{.*}} [[S_INT_TY_DEF_CONSTR]](ptr
 388 // CHECK: ret void
 389
 390 // CHECK: define internal noundef i32 [[DESTRUCTORS]](i32 noundef %0, ptr noalias noundef %1)
 391 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds nuw [[KMP_TASK_TMAIN_TY]], ptr [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
 392 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 393 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds nuw [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 394 // CHECK: call void [[S_INT_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF]])
 395 // CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 396 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i{{.+}} 2
 397 // CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i{{.+}} -1
 398 // CHECK: call void [[S_INT_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_S_ARR_ELEM_REF]])
 399 // CHECK: icmp eq
 400 // CHECK: br i1
 401 // CHECK: ret i32
 402
 403 #endif
 404 #else
 405 // ARRAY-LABEL: array_func
 406 struct St {
 407   int a, b;
 408   St() : a(0), b(0) {}
 409   St &operator=(const St &) { return *this; };
 410   ~St() {}
 411 };
 412
 413 void array_func(int n, float a[n], St s[2]) {
 414 // ARRAY: call ptr @__kmpc_omp_task_alloc(
 415 // ARRAY: call void @__kmpc_taskloop(
 416 // ARRAY: store ptr %{{.+}}, ptr %{{.+}},
 417 // ARRAY: store ptr %{{.+}}, ptr %{{.+}},
 418 #pragma omp taskloop private(a, s)
 419   for (int i = 0; i < 10; ++i)
 420     ;
 421 }
 422 #endif
 423