clang/test/OpenMP/taskloop_lastprivate_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 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp -x c++ -std=c++11 -DLOOP -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=LOOP %s
   8
   9 // 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
  10 // RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple x86_64-apple-darwin10 -emit-pch -o %t %s
  11 // 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
  12 // 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
  13 // 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
  14 // 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
  15 // RUN: %clang_cc1 -verify -Wno-vla -fopenmp-simd -x c++ -std=c++11 -DLOOP -triple x86_64-apple-darwin10 -emit-llvm %s -o - | FileCheck -check-prefix=SIMD-ONLY0 %s
  16 // SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
  17 // expected-no-diagnostics
  18
  19 #if !defined(ARRAY) && !defined(LOOP)
  20 #ifndef HEADER
  21 #define HEADER
  22
  23 template <class T>
  24 struct S {
  25   T f;
  26   S(T a) : f(a) {}
  27   S() : f() {}
  28   S(const S &s, T t = T()) : f(s.f + t) {}
  29   operator T() { return T(); }
  30   ~S() {}
  31 };
  32
  33 volatile double g;
  34
  35 // CHECK-DAG: [[KMP_TASK_T_TY:%.+]] = type { ptr, ptr, i32, %union{{.+}}, %union{{.+}}, i64, i64, i64, i32, ptr }
  36 // CHECK-DAG: [[S_DOUBLE_TY:%.+]] = type { double }
  37 // CHECK-DAG: [[PRIVATES_MAIN_TY:%.+]] = type {{.?}}{ [2 x [[S_DOUBLE_TY]]], [[S_DOUBLE_TY]], i32, [2 x i32]
  38 // CHECK-DAG: [[CAP_MAIN_TY:%.+]] = type { ptr, ptr, ptr, ptr, ptr }
  39 // CHECK-DAG: [[KMP_TASK_MAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [[PRIVATES_MAIN_TY]] }
  40 // CHECK-DAG: [[S_INT_TY:%.+]] = type { i32 }
  41 // CHECK-DAG: [[CAP_TMAIN_TY:%.+]] = type { ptr, ptr, ptr, ptr }
  42 // CHECK-DAG: [[PRIVATES_TMAIN_TY:%.+]] = type { i32, [2 x i32], [2 x [[S_INT_TY]]], [[S_INT_TY]], [104 x i8] }
  43 // CHECK-DAG: [[KMP_TASK_TMAIN_TY:%.+]] = type { [[KMP_TASK_T_TY]], [{{[0-9]+}} x i8], [[PRIVATES_TMAIN_TY]] }
  44 template <typename T>
  45 T tmain() {
  46   S<T> ttt;
  47   S<T> test;
  48   T t_var __attribute__((aligned(128))) = T();
  49   T vec[] = {1, 2};
  50   S<T> s_arr[] = {1, 2};
  51   S<T> var(3);
  52 #pragma omp taskloop lastprivate(t_var, vec, s_arr, s_arr, var, var)
  53   for (int i = 0; i < 10; ++i) {
  54     vec[0] = t_var;
  55     s_arr[0] = var;
  56   }
  57   return T();
  58 }
  59
  60 int main() {
  61   static int sivar;
  62 #ifdef LAMBDA
  63   // LAMBDA: [[G:@.+]] ={{.*}} global double
  64   // LAMBDA: [[SIVAR:@.+]] = internal global i{{[0-9]+}} 0,
  65   // LAMBDA-LABEL: @main
  66   // LAMBDA: call{{( x86_thiscallcc)?}} void [[OUTER_LAMBDA:@.+]](
  67   [&]() {
  68   // LAMBDA: define{{.*}} internal{{.*}} void [[OUTER_LAMBDA]](
  69   // LAMBDA: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 96, i64 16, ptr [[TASK_ENTRY:@.+]])
  70 // LAMBDA: [[PRIVATES:%.+]] = getelementptr inbounds %{{.+}}, ptr %{{.+}}, i{{.+}} 0, i{{.+}} 1
  71
  72 // LAMBDA: call void @__kmpc_taskloop(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]], i32 1, ptr %{{.+}}, ptr %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, ptr [[MAIN_DUP:@.+]])
  73 // LAMBDA: ret
  74 #pragma omp taskloop lastprivate(g, sivar)
  75   for (int i = 0; i < 10; ++i) {
  76     // LAMBDA: define {{.+}} void [[INNER_LAMBDA:@.+]]({{.+}} [[ARG_PTR:%.+]])
  77     // LAMBDA: store ptr [[ARG_PTR]], ptr [[ARG_PTR_REF:%.+]],
  78     // LAMBDA: [[ARG_PTR:%.+]] = load ptr, ptr [[ARG_PTR_REF]]
  79     // LAMBDA: [[G_PTR_REF:%.+]] = getelementptr inbounds %{{.+}}, ptr [[ARG_PTR]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
  80     // LAMBDA: [[G_REF:%.+]] = load ptr, ptr [[G_PTR_REF]]
  81     // LAMBDA: store double 2.0{{.+}}, ptr [[G_REF]]
  82
  83     // LAMBDA: store ptr %{{.+}}, ptr %{{.+}},
  84     // LAMBDA: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
  85     g = 1;
  86     sivar = 11;
  87     // LAMBDA: store double 1.0{{.+}}, ptr %{{.+}},
  88     // LAMBDA: store i{{[0-9]+}} 11, ptr %{{.+}},
  89     // LAMBDA: call void [[INNER_LAMBDA]]({{.+}}
  90     // LAMBDA: icmp ne i32 %{{.+}}, 0
  91     // LAMBDA: br i1
  92     // LAMBDA: load double, ptr %
  93     // LAMBDA: store volatile double %
  94     // LAMBDA: load i32, ptr %
  95     // LAMBDA: store i32 %
  96     // LAMBDA: ret
  97     [&]() {
  98       g = 2;
  99       sivar = 22;
 100     }();
 101   }
 102   }();
 103   return 0;
 104 #elif defined(BLOCKS)
 105   // BLOCKS: [[G:@.+]] ={{.*}} global double
 106   // BLOCKS: [[SIVAR:@.+]] = internal global i{{[0-9]+}} 0,
 107   // BLOCKS-LABEL: @main
 108   // BLOCKS: call void {{%.+}}(ptr
 109   ^{
 110   // BLOCKS: define{{.*}} internal{{.*}} void {{.+}}(ptr
 111   // BLOCKS: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr @{{[^,]+}}, i32 %{{[^,]+}}, i32 1, i64 96, i64 16, ptr [[TASK_ENTRY:@.+]])
 112   // BLOCKS: [[PRIVATES:%.+]] = getelementptr inbounds %{{.+}}, ptr %{{.+}}, i{{.+}} 0, i{{.+}} 1
 113   // BLOCKS: call void @__kmpc_taskloop(ptr @{{.+}}, i32 %{{.+}}, ptr [[RES]], i32 1, ptr %{{.+}}, ptr %{{.+}}, i64 %{{.+}}, i32 1, i32 0, i64 0, ptr [[MAIN_DUP:@.+]])
 114   // BLOCKS: ret
 115 #pragma omp taskloop lastprivate(g, sivar)
 116   for (int i = 0; i < 10; ++i) {
 117     // BLOCKS: define {{.+}} void {{@.+}}(ptr
 118     // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
 119     // BLOCKS: store double 2.0{{.+}}, ptr
 120     // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
 121     // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
 122     // BLOCKS: store i{{[0-9]+}} 22, ptr
 123     // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
 124     // BLOCKS: ret
 125
 126     // BLOCKS: store ptr %{{.+}}, ptr %{{.+}},
 127     // BLOCKS: store ptr %{{.+}}, ptr %{{.+}},
 128     // BLOCKS: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
 129     g = 1;
 130     sivar = 11;
 131     // BLOCKS: store double 1.0{{.+}}, ptr %{{.+}},
 132     // BLOCKS-NOT: [[G]]{{[[^:word:]]}}
 133     // BLOCKS: store i{{[0-9]+}} 11, ptr %{{.+}},
 134     // BLOCKS-NOT: [[SIVAR]]{{[[^:word:]]}}
 135     // BLOCKS: call void {{%.+}}(ptr
 136     // BLOCKS: icmp ne i32 %{{.+}}, 0
 137     // BLOCKS: br i1
 138     // BLOCKS: load double, ptr %
 139     // BLOCKS: store volatile double %
 140     // BLOCKS: load i32, ptr %
 141     // BLOCKS: store i32 %
 142     ^{
 143       g = 2;
 144       sivar = 22;
 145     }();
 146   }
 147   }();
 148   return 0;
 149 #else
 150   S<double> ttt;
 151   S<double> test;
 152   int t_var = 0;
 153   int vec[] = {1, 2};
 154   S<double> s_arr[] = {1, 2};
 155   S<double> var(3);
 156 #pragma omp taskloop lastprivate(var, t_var, s_arr, vec, s_arr, var, sivar)
 157   for (int i = 0; i < 10; ++i) {
 158     vec[0] = t_var;
 159     s_arr[0] = var;
 160     sivar = 33;
 161   }
 162   return tmain<int>();
 163 #endif
 164 }
 165
 166 // CHECK: [[SIVAR:.+]] = internal global i{{[0-9]+}} 0,
 167 // CHECK: define{{.*}} i{{[0-9]+}} @main()
 168 // CHECK: alloca [[S_DOUBLE_TY]],
 169 // CHECK: [[TEST:%.+]] = alloca [[S_DOUBLE_TY]],
 170 // CHECK: [[T_VAR_ADDR:%.+]] = alloca i32,
 171 // CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
 172 // CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_DOUBLE_TY]]],
 173 // CHECK: [[VAR_ADDR:%.+]] = alloca [[S_DOUBLE_TY]],
 174 // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC:@.+]])
 175
 176 // CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR:@.+]](ptr {{[^,]*}} [[TEST]])
 177
 178 // Store original variables in capture struct.
 179 // CHECK: [[VEC_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 0
 180 // CHECK: store ptr [[VEC_ADDR]], ptr [[VEC_REF]],
 181 // CHECK: [[T_VAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 1
 182 // CHECK: store ptr [[T_VAR_ADDR]], ptr [[T_VAR_REF]],
 183 // CHECK: [[S_ARR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 2
 184 // CHECK: store ptr [[S_ARR_ADDR]], ptr [[S_ARR_REF]],
 185 // CHECK: [[VAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 3
 186 // CHECK: store ptr [[VAR_ADDR]], ptr [[VAR_REF]],
 187 // CHECK: [[SIVAR_REF:%.+]] = getelementptr inbounds [[CAP_MAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 4
 188 // CHECK: store ptr [[SIVAR]], ptr [[SIVAR_REF]],
 189
 190 // Allocate task.
 191 // Returns struct kmp_task_t {
 192 //         [[KMP_TASK_T]] task_data;
 193 //         [[KMP_TASK_MAIN_TY]] privates;
 194 //       };
 195 // CHECK: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr [[LOC]], i32 [[GTID]], i32 9, i64 120, i64 40, ptr [[TASK_ENTRY:@[^ ]+]])
 196
 197 // Fill kmp_task_t->shareds by copying from original capture argument.
 198 // CHECK: [[TASK:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 199 // CHECK: [[SHAREDS_REF_ADDR:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], ptr [[TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 200 // CHECK: [[SHAREDS_REF:%.+]] = load ptr, ptr [[SHAREDS_REF_ADDR]],
 201 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[SHAREDS_REF]], ptr align 8 %{{.+}}, i64 40, i1 false)
 202
 203 // Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
 204 // Also copy address of private copy to the corresponding shareds reference.
 205 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
 206
 207 // Constructors for s_arr and var.
 208 // s_arr;
 209 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 210 // CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]](ptr {{[^,]*}} [[S_ARR_CUR:%[^,]+]])
 211 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr [[S_ARR_CUR]], i{{.+}} 1
 212 // CHECK: icmp eq
 213 // CHECK: br i1
 214
 215 // var;
 216 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
 217 // CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF]])
 218
 219 // t_var;
 220 // vec;
 221 // sivar;
 222
 223 // Provide pointer to destructor function, which will destroy private variables at the end of the task.
 224 // CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], ptr [[TASK]], i{{.+}} 0, i{{.+}} 3
 225 // CHECK: store ptr [[DESTRUCTORS:@.+]], ptr [[DESTRUCTORS_REF]],
 226
 227 // Start task.
 228 // 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:@.+]])
 229
 230 // CHECK: = call noundef i{{.+}} [[TMAIN_INT:@.+]]()
 231
 232 // No destructors must be called for private copies of s_arr and var.
 233 // CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 234 // CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 235 // CHECK: call void [[S_DOUBLE_TY_DESTR:@.+]](ptr
 236 // CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 237 // CHECK-NOT: getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 238 // CHECK: ret
 239 //
 240
 241 // 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)
 242 // CHECK: [[PRIVATES:%.+]] = load ptr, ptr
 243 // CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 0
 244 // CHECK: [[ARG3:%.+]] = load ptr, ptr %{{.+}},
 245 // CHECK: store ptr [[PRIV_S_VAR]], ptr [[ARG3]],
 246 // CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 1
 247 // CHECK: [[ARG1:%.+]] = load ptr, ptr {{.+}},
 248 // CHECK: store ptr [[PRIV_VAR]], ptr [[ARG1]],
 249 // CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 2
 250 // CHECK: [[ARG2:%.+]] = load ptr, ptr %{{.+}},
 251 // CHECK: store ptr [[PRIV_T_VAR]], ptr [[ARG2]],
 252 // CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 3
 253 // CHECK: [[ARG4:%.+]] = load ptr, ptr %{{.+}},
 254 // CHECK: store ptr [[PRIV_VEC]], ptr [[ARG4]],
 255 // CHECK: [[PRIV_SIVAR:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i32 0, i32 4
 256 // CHECK: [[ARG5:%.+]] = load ptr, ptr %{{.+}},
 257 // CHECK: store ptr [[PRIV_SIVAR]], ptr [[ARG5]],
 258 // CHECK: ret void
 259
 260 // CHECK: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
 261
 262 // CHECK: %__context
 263 // CHECK: [[PRIV_VAR_ADDR:%.+]] = alloca ptr,
 264 // CHECK: [[PRIV_T_VAR_ADDR:%.+]] = alloca ptr,
 265 // CHECK: [[PRIV_S_ARR_ADDR:%.+]] = alloca ptr,
 266 // CHECK: [[PRIV_VEC_ADDR:%.+]] = alloca ptr,
 267 // CHECK: [[PRIV_SIVAR_ADDR:%.+]] = alloca ptr,
 268 // CHECK: store ptr [[PRIVATES_MAP_FN]], ptr [[MAP_FN_ADDR:%.+]],
 269 // CHECK: [[MAP_FN:%.+]] = load ptr, ptr [[MAP_FN_ADDR]],
 270
 271 // 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]])
 272
 273 // CHECK: [[PRIV_VAR:%.+]] = load ptr, ptr [[PRIV_VAR_ADDR]],
 274 // CHECK: [[PRIV_T_VAR:%.+]] = load ptr, ptr [[PRIV_T_VAR_ADDR]],
 275 // CHECK: [[PRIV_S_ARR:%.+]] = load ptr, ptr [[PRIV_S_ARR_ADDR]],
 276 // CHECK: [[PRIV_VEC:%.+]] = load ptr, ptr [[PRIV_VEC_ADDR]],
 277 // CHECK: [[PRIV_SIVAR:%.+]] = load ptr, ptr [[PRIV_SIVAR_ADDR]],
 278
 279 // Privates actually are used.
 280 // CHECK-DAG: [[PRIV_VAR]]
 281 // CHECK-DAG: [[PRIV_T_VAR]]
 282 // CHECK-DAG: [[PRIV_S_ARR]]
 283 // CHECK-DAG: [[PRIV_VEC]]
 284 // CHECK-DAG: [[PRIV_SIVAR]]
 285
 286 // CHECK:     icmp ne i32 %{{.+}}, 0
 287 // CHECK-NEXT: br i1
 288 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align {{[0-9]+}} %
 289 // CHECK: load i32, ptr %
 290 // CHECK: store i32 %{{.+}}, ptr %
 291 // CHECK: phi ptr
 292 // CHECK: phi ptr
 293 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align {{[0-9]+}} %
 294 // CHECK: icmp eq ptr %
 295 // CHECK-NEXT: br i1
 296 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align {{[0-9]+}} %
 297 // CHECK: load i32, ptr %
 298 // CHECK: store i32 %{{.+}}, ptr %
 299 // CHECK: br label
 300 // CHECK: ret
 301
 302 // CHECK: define internal void [[MAIN_DUP]](ptr noundef %0, ptr noundef %1, i32 noundef %2)
 303 // CHECK: getelementptr inbounds [[KMP_TASK_MAIN_TY]], ptr %{{.+}}, i32 0, i32 0
 304 // CHECK: getelementptr inbounds [[KMP_TASK_T_TY]], ptr %{{.+}}, i32 0, i32 8
 305 // CHECK: load i32, ptr %
 306 // CHECK: store i32 %{{.+}}, ptr %
 307 // CHECK: getelementptr inbounds [[KMP_TASK_MAIN_TY]], ptr %{{.+}}, i32 0, i32 1
 308 // CHECK: getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr %{{.+}}, i32 0, i32 0
 309 // CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], ptr %{{.+}}, i32 0, i32 0
 310 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i64 2
 311 // CHECK: br label %
 312
 313 // CHECK: phi ptr
 314 // CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]](ptr
 315 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i64 1
 316 // CHECK: icmp eq ptr %
 317 // CHECK: br i1 %
 318
 319 // CHECK: getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr %{{.+}}, i32 0, i32 1
 320 // CHECK: call {{.*}} [[S_DOUBLE_TY_CONSTR]](ptr
 321 // CHECK: ret void
 322
 323 // CHECK: define internal noundef i32 [[DESTRUCTORS]](i32 noundef %0, ptr noalias noundef %1)
 324 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_MAIN_TY]], ptr [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 1
 325 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 0
 326 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_MAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 1
 327 // CHECK: call {{.*}} [[S_DOUBLE_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF]])
 328 // CHECK: getelementptr inbounds [2 x [[S_DOUBLE_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 329 // CHECK: getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i{{.+}} 2
 330 // CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_DOUBLE_TY]], ptr %{{.+}}, i{{.+}} -1
 331 // CHECK: call {{.*}} [[S_DOUBLE_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_S_ARR_ELEM_REF]])
 332 // CHECK: icmp eq
 333 // CHECK: br i1
 334 // CHECK: ret i32
 335
 336 // CHECK: define {{.*}} i{{[0-9]+}} [[TMAIN_INT]]()
 337 // CHECK: alloca [[S_INT_TY]],
 338 // CHECK: [[TEST:%.+]] = alloca [[S_INT_TY]],
 339 // CHECK: [[T_VAR_ADDR:%.+]] = alloca i32, align 128
 340 // CHECK: [[VEC_ADDR:%.+]] = alloca [2 x i32],
 341 // CHECK: [[S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]],
 342 // CHECK: [[VAR_ADDR:%.+]] = alloca [[S_INT_TY]],
 343 // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num(ptr [[LOC:@.+]])
 344
 345 // CHECK: call {{.*}} [[S_INT_TY_CONSTR:@.+]](ptr {{[^,]*}} [[TEST]])
 346
 347 // Store original variables in capture struct.
 348 // CHECK: [[VEC_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 0
 349 // CHECK: store ptr [[VEC_ADDR]], ptr [[VEC_REF]],
 350 // CHECK: [[T_VAR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 1
 351 // CHECK: store ptr [[T_VAR_ADDR]], ptr [[T_VAR_REF]],
 352 // CHECK: [[S_ARR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 2
 353 // CHECK: store ptr [[S_ARR_ADDR]], ptr [[S_ARR_REF]],
 354 // CHECK: [[VAR_REF:%.+]] = getelementptr inbounds [[CAP_TMAIN_TY]], ptr %{{.+}}, i{{[0-9]+}} 0, i{{[0-9]+}} 3
 355 // CHECK: store ptr [[VAR_ADDR]], ptr [[VAR_REF]],
 356
 357 // Allocate task.
 358 // Returns struct kmp_task_t {
 359 //         [[KMP_TASK_T_TY]] task_data;
 360 //         [[KMP_TASK_TMAIN_TY]] privates;
 361 //       };
 362 // CHECK: [[RES:%.+]] = call ptr @__kmpc_omp_task_alloc(ptr [[LOC]], i32 [[GTID]], i32 9, i64 256, i64 32, ptr [[TASK_ENTRY:@[^ ]+]])
 363
 364 // Fill kmp_task_t->shareds by copying from original capture argument.
 365 // CHECK: [[TASK:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 366 // CHECK: [[SHAREDS_REF_ADDR:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], ptr [[TASK]], i{{[0-9]+}} 0, i{{[0-9]+}} 0
 367 // CHECK: [[SHAREDS_REF:%.+]] = load ptr, ptr [[SHAREDS_REF_ADDR]],
 368 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[SHAREDS_REF]], ptr align 8 %{{.+}}, i64 32, i1 false)
 369
 370 // Initialize kmp_task_t->privates with default values (no init for simple types, default constructors for classes).
 371 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], ptr [[RES]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
 372
 373 // t_var;
 374 // vec;
 375
 376 // Constructors for s_arr and var.
 377 // a_arr;
 378 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
 379 // CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 380 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i{{.+}} 2
 381 // CHECK: call {{.*}} [[S_INT_TY_CONSTR]](ptr {{[^,]*}} [[S_ARR_CUR:%[^,]+]])
 382 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr [[S_ARR_CUR]], i{{.+}} 1
 383 // CHECK: icmp eq
 384 // CHECK: br i1
 385
 386 // var;
 387 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 388 // CHECK: call {{.*}} [[S_INT_TY_CONSTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF]])
 389
 390 // Provide pointer to destructor function, which will destroy private variables at the end of the task.
 391 // CHECK: [[DESTRUCTORS_REF:%.+]] = getelementptr inbounds [[KMP_TASK_T_TY]], ptr [[TASK]], i{{.+}} 0, i{{.+}} 3
 392 // CHECK: store ptr [[DESTRUCTORS:@.+]], ptr [[DESTRUCTORS_REF]],
 393
 394 // Start task.
 395 // 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:@.+]])
 396
 397 // No destructors must be called for private copies of s_arr and var.
 398 // CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 399 // CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 400 // CHECK: call void [[S_INT_TY_DESTR:@.+]](ptr noundef
 401 // CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 402 // CHECK-NOT: getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 403 // CHECK: ret
 404 //
 405
 406 // 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)
 407 // CHECK: [[PRIVATES:%.+]] = load ptr, ptr
 408 // CHECK: [[PRIV_T_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 0
 409 // CHECK: [[ARG1:%.+]] = load ptr, ptr %{{.+}},
 410 // CHECK: store ptr [[PRIV_T_VAR]], ptr [[ARG1]],
 411 // CHECK: [[PRIV_VEC:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 1
 412 // CHECK: [[ARG2:%.+]] = load ptr, ptr %{{.+}},
 413 // CHECK: store ptr [[PRIV_VEC]], ptr [[ARG2]],
 414 // CHECK: [[PRIV_S_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 2
 415 // CHECK: [[ARG3:%.+]] = load ptr, ptr %{{.+}},
 416 // CHECK: store ptr [[PRIV_S_VAR]], ptr [[ARG3]],
 417 // CHECK: [[PRIV_VAR:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i32 0, i32 3
 418 // CHECK: [[ARG4:%.+]] = load ptr, ptr {{.+}},
 419 // CHECK: store ptr [[PRIV_VAR]], ptr [[ARG4]],
 420 // CHECK: ret void
 421
 422 // CHECK: define internal noundef i32 [[TASK_ENTRY]](i32 noundef %0, ptr noalias noundef %1)
 423 // CHECK: %__context
 424 // CHECK-DAG: [[PRIV_T_VAR_ADDR:%.+]] = alloca ptr,
 425 // CHECK-DAG: [[PRIV_VEC_ADDR:%.+]] = alloca ptr,
 426 // CHECK-DAG: [[PRIV_S_ARR_ADDR:%.+]] = alloca ptr,
 427 // CHECK-DAG: [[PRIV_VAR_ADDR:%.+]] = alloca ptr,
 428 // CHECK: store ptr [[PRIVATES_MAP_FN]], ptr [[MAP_FN_ADDR:%.+]],
 429 // CHECK: [[MAP_FN:%.+]] = load ptr, ptr [[MAP_FN_ADDR]],
 430 // CHECK: call void [[MAP_FN]](ptr %{{.+}}, ptr [[PRIV_T_VAR_ADDR]], ptr [[PRIV_VEC_ADDR]], ptr [[PRIV_S_ARR_ADDR]], ptr [[PRIV_VAR_ADDR]])
 431 // CHECK: [[PRIV_T_VAR:%.+]] = load ptr, ptr [[PRIV_T_VAR_ADDR]],
 432 // CHECK: [[PRIV_VEC:%.+]] = load ptr, ptr [[PRIV_VEC_ADDR]],
 433 // CHECK: [[PRIV_S_ARR:%.+]] = load ptr, ptr [[PRIV_S_ARR_ADDR]],
 434 // CHECK: [[PRIV_VAR:%.+]] = load ptr, ptr [[PRIV_VAR_ADDR]],
 435
 436 // Privates actually are used.
 437 // CHECK-DAG: [[PRIV_VAR]]
 438 // CHECK-DAG: [[PRIV_T_VAR]]
 439 // CHECK-DAG: [[PRIV_S_ARR]]
 440 // CHECK-DAG: [[PRIV_VEC]]
 441
 442 // CHECK:     icmp ne i32 %{{.+}}, 0
 443 // CHECK-NEXT: br i1
 444 // CHECK: load i32, ptr %
 445 // CHECK: store i32 %{{.+}}, ptr %
 446 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align {{[0-9]+}} %
 447 // CHECK: phi ptr
 448 // CHECK: phi ptr
 449 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align {{[0-9]+}} %
 450 // CHECK: icmp eq ptr %
 451 // CHECK-NEXT: br i1
 452 // CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align {{[0-9]+}} %
 453 // CHECK: br label
 454 // CHECK: ret
 455
 456 // CHECK: define internal void [[TMAIN_DUP]](ptr noundef %0, ptr noundef %1, i32 noundef %2)
 457 // CHECK: getelementptr inbounds [[KMP_TASK_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 0
 458 // CHECK: getelementptr inbounds [[KMP_TASK_T_TY]], ptr %{{.+}}, i32 0, i32 8
 459 // CHECK: load i32, ptr %
 460 // CHECK: store i32 %{{.+}}, ptr %
 461 // CHECK: getelementptr inbounds [[KMP_TASK_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 2
 462 // CHECK: getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 2
 463 // CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], ptr %{{.+}}, i32 0, i32 0
 464 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i64 2
 465 // CHECK: br label %
 466
 467 // CHECK: phi ptr
 468 // CHECK: call {{.*}} [[S_INT_TY_CONSTR]](ptr
 469 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i64 1
 470 // CHECK: icmp eq ptr %
 471 // CHECK: br i1 %
 472
 473 // CHECK: getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr %{{.+}}, i32 0, i32 3
 474 // CHECK: call {{.*}} [[S_INT_TY_CONSTR]](ptr
 475 // CHECK: ret void
 476
 477 // CHECK: define internal noundef i32 [[DESTRUCTORS]](i32 noundef %0, ptr noalias noundef %1)
 478 // CHECK: [[PRIVATES:%.+]] = getelementptr inbounds [[KMP_TASK_TMAIN_TY]], ptr [[RES_KMP_TASK:%.+]], i{{[0-9]+}} 0, i{{[0-9]+}} 2
 479 // CHECK: [[PRIVATE_S_ARR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 2
 480 // CHECK: [[PRIVATE_VAR_REF:%.+]] = getelementptr inbounds [[PRIVATES_TMAIN_TY]], ptr [[PRIVATES]], i{{.+}} 0, i{{.+}} 3
 481 // CHECK: call void [[S_INT_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_VAR_REF]])
 482 // CHECK: getelementptr inbounds [2 x [[S_INT_TY]]], ptr [[PRIVATE_S_ARR_REF]], i{{.+}} 0, i{{.+}} 0
 483 // CHECK: getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i{{.+}} 2
 484 // CHECK: [[PRIVATE_S_ARR_ELEM_REF:%.+]] = getelementptr inbounds [[S_INT_TY]], ptr %{{.+}}, i{{.+}} -1
 485 // CHECK: call void [[S_INT_TY_DESTR]](ptr {{[^,]*}} [[PRIVATE_S_ARR_ELEM_REF]])
 486 // CHECK: icmp eq
 487 // CHECK: br i1
 488 // CHECK: ret i32
 489
 490 #endif
 491 #elif defined(ARRAY)
 492 // ARRAY-LABEL: array_func
 493 struct St {
 494   int a, b;
 495   St() : a(0), b(0) {}
 496   St(const St &) {}
 497   ~St() {}
 498 };
 499
 500 void array_func(int n, float a[n], St s[2]) {
 501 // ARRAY: call ptr @__kmpc_omp_task_alloc(
 502 // ARRAY: call void @__kmpc_taskloop(
 503 // ARRAY: store ptr %{{.+}}, ptr %{{.+}},
 504 // ARRAY: store ptr %{{.+}}, ptr %{{.+}},
 505 // ARRAY: icmp ne i32 %{{.+}}, 0
 506 // ARRAY: store ptr %{{.+}}, ptr %{{.+}},
 507 // ARRAY: store ptr %{{.+}}, ptr %{{.+}},
 508 #pragma omp taskloop lastprivate(a, s)
 509   for (int i = 0; i < 10; ++i)
 510     ;
 511 }
 512 #else
 513
 514 // LOOP-LABEL: loop
 515 void loop() {
 516 // LOOP: call ptr @__kmpc_omp_task_alloc(
 517 // LOOP: call void @__kmpc_taskloop(
 518   int i;
 519 #pragma omp taskloop lastprivate(i)
 520   for (i = 0; i < 10; ++i)
 521     ;
 522 }
 523 #endif
 524