[OPENMP] Add support for `depend` clauses on `target parallel for simd`

directives.

Added codegen for `depend` clauses on `#pragma omp target parallel for
simd` directives.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@322578 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 262 insertions, 1 deletions

diff --git a/lib/Sema/SemaOpenMP.cpp b/lib/Sema/SemaOpenMP.cpp
index c4aeff6be5..d3f641d517 100644
--- a/lib/Sema/SemaOpenMP.cpp
+++ b/lib/Sema/SemaOpenMP.cpp
@@ -8157,12 +8157,12 @@ static OpenMPDirectiveKind getOpenMPCaptureRegionForClause(
     case OMPD_target_teams_distribute:
     case OMPD_target_teams_distribute_simd:
     case OMPD_target_parallel_for:
+    case OMPD_target_parallel_for_simd:
       CaptureRegion = OMPD_task;
       break;
     case OMPD_target_teams_distribute_parallel_for:
     case OMPD_target_teams_distribute_parallel_for_simd:
     case OMPD_target_data:
-    case OMPD_target_parallel_for_simd:
       // Do not capture device-clause expressions.
       break;
     case OMPD_teams_distribute_parallel_for:
diff --git a/test/OpenMP/target_parallel_for_simd_depend_codegen.cpp b/test/OpenMP/target_parallel_for_simd_depend_codegen.cpp
new file mode 100644
index 0000000000..da516995ec
--- /dev/null
+++ b/test/OpenMP/target_parallel_for_simd_depend_codegen.cpp
@@ -0,0 +1,261 @@
+// Test host codegen.
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-64
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-64
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-32
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix CHECK --check-prefix CHECK-32
+
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -o - | FileCheck --check-prefix SIMD-ONLY0 %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY0 %s
+// SIMD-ONLY0-NOT: {{__kmpc|__tgt}}
+
+// Test target codegen - host bc file has to be created first.
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm-bc %s -o %t-ppc-host.bc
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck %s --check-prefix TCHECK --check-prefix TCHECK-64
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o %t %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix TCHECK --check-prefix TCHECK-64
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm-bc %s -o %t-x86-host.bc
+// RUN: %clang_cc1 -verify -fopenmp -fopenmp-version=45 -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - | FileCheck %s --check-prefix TCHECK --check-prefix TCHECK-32
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o %t %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=45 -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s --check-prefix TCHECK --check-prefix TCHECK-32
+
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm-bc %s -o %t-ppc-host.bc
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o - | FileCheck --check-prefix SIMD-ONLY1 %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -emit-pch -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -o %t %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -triple powerpc64le-unknown-unknown -fopenmp-targets=powerpc64le-ibm-linux-gnu -std=c++11 -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY1 %s
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm-bc %s -o %t-x86-host.bc
+// RUN: %clang_cc1 -verify -fopenmp-simd -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o - | FileCheck --check-prefix SIMD-ONLY1 %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -std=c++11 -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -emit-pch -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -o %t %s
+// RUN: %clang_cc1 -fopenmp-simd -x c++ -triple i386-unknown-unknown -fopenmp-targets=i386-pc-linux-gnu -std=c++11 -fopenmp-is-device -fopenmp-host-ir-file-path %t-x86-host.bc -include-pch %t -verify %s -emit-llvm -o - | FileCheck --check-prefix SIMD-ONLY1 %s
+// SIMD-ONLY1-NOT: {{__kmpc|__tgt}}
+
+// expected-no-diagnostics
+#ifndef HEADER
+#define HEADER
+
+// CHECK-DAG: [[TT:%.+]] = type { i64, i8 }
+// CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
+// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
+// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
+
+// TCHECK: [[ENTTY:%.+]] = type { i8*, i8*, i{{32|64}}, i32, i32 }
+
+// CHECK-DAG: $[[REGFN:\.omp_offloading\..+]] = comdat
+
+// CHECK-DAG: [[SIZET:@.+]] = private unnamed_addr constant [2 x i[[SZ]]] [i[[SZ]] 0, i[[SZ]] 4]
+// CHECK-DAG: [[MAPT:@.+]] = private unnamed_addr constant [2 x i64] [i64 32, i64 288]
+// CHECK-DAG: @{{.*}} = private constant i8 0
+
+// TCHECK: @{{.+}} = constant [[ENTTY]]
+// TCHECK: @{{.+}} = {{.*}}constant [[ENTTY]]
+// TCHECK-NOT: @{{.+}} = constant [[ENTTY]]
+
+// Check if offloading descriptor is created.
+// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
+// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
+// CHECK: [[DEVBEGIN:@.+]] = external constant i8
+// CHECK: [[DEVEND:@.+]] = external constant i8
+// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [1 x [[DEVTY]]] [{{.+}} { i8* [[DEVBEGIN]], i8* [[DEVEND]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
+// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 1, [[DEVTY]]* getelementptr inbounds ([1 x [[DEVTY]]], [1 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
+
+// Check target registration is registered as a Ctor.
+// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* bitcast (void (i8*)* @[[REGFN]] to void ()*), i8* bitcast (void (i8*)* @[[REGFN]] to i8*) }]
+
+
+template<typename tx, typename ty>
+struct TT{
+  tx X;
+  ty Y;
+};
+
+int global;
+extern int global;
+
+// CHECK: define {{.*}}[[FOO:@.+]](
+int foo(int n) {
+  int a = 0;
+  short aa = 0;
+  float b[10];
+  float bn[n];
+  double c[5][10];
+  double cn[5][n];
+  TT<long long, char> d;
+  static long *plocal;
+
+  // CHECK:       [[ADD:%.+]] = add nsw i32
+  // CHECK:       store i32 [[ADD]], i32* [[DEVICE_CAP:%.+]],
+  // CHECK:       [[GEP:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i32 0, i32 0
+  // CHECK:       [[DEV:%.+]] = load i32, i32* [[DEVICE_CAP]],
+  // CHECK:       store i32 [[DEV]], i32* [[GEP]],
+  // CHECK:       [[TASK:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[IN:@.+]], i32 [[GTID:%.+]], i32 1, i[[SZ]] {{20|40}}, i[[SZ]] 4, i32 (i32, i8*)* bitcast (i32 (i32, %{{.+}}*)* [[TASK_ENTRY0:@.+]] to i32 (i32, i8*)*))
+  // CHECK:       [[BC_TASK:%.+]] = bitcast i8* [[TASK]] to [[TASK_TY0:%.+]]*
+  // CHECK:       getelementptr inbounds [4 x %struct.kmp_depend_info], [4 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 0
+  // CHECK:       getelementptr inbounds [4 x %struct.kmp_depend_info], [4 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 1
+  // CHECK:       getelementptr inbounds [4 x %struct.kmp_depend_info], [4 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 2
+  // CHECK:       getelementptr inbounds [4 x %struct.kmp_depend_info], [4 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 3
+  // CHECK:       [[DEP_START:%.+]] = getelementptr inbounds [4 x %struct.kmp_depend_info], [4 x %struct.kmp_depend_info]* %{{.+}}, i32 0, i32 0
+  // CHECK:       [[DEP:%.+]] = bitcast %struct.kmp_depend_info* [[DEP_START]] to i8*
+  // CHECK:       call void @__kmpc_omp_wait_deps(%ident_t* [[IN]], i32 [[GTID]], i32 4, i8* [[DEP]], i32 0, i8* null)
+  // CHECK:       call void @__kmpc_omp_task_begin_if0(%ident_t* [[IN]], i32 [[GTID]], i8* [[TASK]])
+  // CHECK:       call i32 [[TASK_ENTRY0]](i32 [[GTID]], [[TASK_TY0]]* [[BC_TASK]])
+  // CHECK:       call void @__kmpc_omp_task_complete_if0(%ident_t* [[IN]], i32 [[GTID]], i8* [[TASK]])
+  #pragma omp target parallel for simd device(global + a) depend(in: global) depend(out: a, b, cn[4])
+  for (int i = 0; i < 10; ++i) {
+  }
+
+  // CHECK:       [[ADD:%.+]] = add nsw i32
+  // CHECK:       store i32 [[ADD]], i32* [[DEVICE_CAP:%.+]],
+
+  // CHECK:       [[BOOL:%.+]] = icmp ne i32 %{{.+}}, 0
+  // CHECK:       br i1 [[BOOL]], label %[[THEN:.+]], label %[[ELSE:.+]]
+  // CHECK:       [[THEN]]:
+  // CHECK-DAG:   [[BPADDR0:%.+]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[BP:%.+]], i32 0, i32 0
+  // CHECK-DAG:   [[PADDR0:%.+]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[P:%.+]], i32 0, i32 0
+  // CHECK-DAG:   [[CBPADDR0:%.+]] = bitcast i8** [[BPADDR0]] to i[[SZ]]**
+  // CHECK-DAG:   [[CPADDR0:%.+]] = bitcast i8** [[PADDR0]] to i[[SZ]]**
+  // CHECK-DAG:   store i[[SZ]]* [[BP0:%[^,]+]], i[[SZ]]** [[CBPADDR0]]
+  // CHECK-DAG:   store i[[SZ]]* [[BP0]], i[[SZ]]** [[CPADDR0]]
+
+  // CHECK-DAG:   [[BPADDR1:%.+]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[BP]], i32 0, i32 1
+  // CHECK-DAG:   [[PADDR1:%.+]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[P]], i32 0, i32 1
+  // CHECK-DAG:   [[CBPADDR1:%.+]] = bitcast i8** [[BPADDR1]] to i[[SZ]]*
+  // CHECK-DAG:   [[CPADDR1:%.+]] = bitcast i8** [[PADDR1]] to i[[SZ]]*
+  // CHECK-DAG:   store i[[SZ]] [[BP1:%[^,]+]], i[[SZ]]* [[CBPADDR1]]
+  // CHECK-DAG:   store i[[SZ]] [[BP1]], i[[SZ]]* [[CPADDR1]]
+  // CHECK-DAG:   getelementptr inbounds [2 x i8*], [2 x i8*]* [[BP]], i32 0, i32 0
+  // CHECK-DAG:   getelementptr inbounds [2 x i8*], [2 x i8*]* [[P]], i32 0, i32 0
+  // CHECK:       [[GEP:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i32 0, i32 2
+  // CHECK:       [[DEV:%.+]] = load i32, i32* [[DEVICE_CAP]],
+  // CHECK:       store i32 [[DEV]], i32* [[GEP]],
+
+  // CHECK:       [[TASK:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[IN]], i32 [[GTID]], i32 1, i[[SZ]] {{104|52}}, i[[SZ]] {{16|12}}, i32 (i32, i8*)* bitcast (i32 (i32, %{{.+}}*)* [[TASK_ENTRY1_:@.+]] to i32 (i32, i8*)*))
+  // CHECK:       [[BC_TASK:%.+]] = bitcast i8* [[TASK]] to [[TASK_TY1_:%.+]]*
+  // CHECK:       getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 0
+  // CHECK:       getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 1
+  // CHECK:       getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 2
+  // CHECK:       [[DEP_START:%.+]] = getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i32 0, i32 0
+  // CHECK:       [[DEP:%.+]] = bitcast %struct.kmp_depend_info* [[DEP_START]] to i8*
+  // CHECK:       call i32 @__kmpc_omp_task_with_deps(%ident_t* [[IN]], i32 [[GTID]], i8* [[TASK]], i32 3, i8* [[DEP]], i32 0, i8* null)
+  // CHECK:       br label %[[EXIT:.+]]
+
+  // CHECK:       [[ELSE]]:
+  // CHECK-NOT:   getelementptr inbounds [2 x i8*], [2 x i8*]*
+  // CHECK:       [[GEP:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i32 0, i32 2
+  // CHECK:       [[DEV:%.+]] = load i32, i32* [[DEVICE_CAP]],
+  // CHECK:       store i32 [[DEV]], i32* [[GEP]],
+
+  // CHECK:       [[TASK:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[IN]], i32 [[GTID]], i32 1, i[[SZ]] {{56|28}}, i[[SZ]] {{16|12}}, i32 (i32, i8*)* bitcast (i32 (i32, %{{.+}}*)* [[TASK_ENTRY1__:@.+]] to i32 (i32, i8*)*))
+  // CHECK:       [[BC_TASK:%.+]] = bitcast i8* [[TASK]] to [[TASK_TY1__:%.+]]*
+  // CHECK:       getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 0
+  // CHECK:       getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 1
+  // CHECK:       getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 2
+  // CHECK:       [[DEP_START:%.+]] = getelementptr inbounds [3 x %struct.kmp_depend_info], [3 x %struct.kmp_depend_info]* %{{.+}}, i32 0, i32 0
+  // CHECK:       [[DEP:%.+]] = bitcast %struct.kmp_depend_info* [[DEP_START]] to i8*
+  // CHECK:       call i32 @__kmpc_omp_task_with_deps(%ident_t* [[IN]], i32 [[GTID]], i8* [[TASK]], i32 3, i8* [[DEP]], i32 0, i8* null)
+  // CHECK:       br label %[[EXIT:.+]]
+  // CHECK:       [[EXIT]]:
+
+  #pragma omp target parallel for simd device(global + a) nowait depend(inout: global, a, bn) if(target:a)
+  for (int i = 0; i < *plocal; ++i) {
+    static int local1;
+    *plocal = global;
+    local1 = global;
+  }
+
+  // CHECK:       [[TASK:%.+]] = call i8* @__kmpc_omp_task_alloc(%ident_t* [[IN]], i32 [[GTID]], i32 1, i[[SZ]] {{48|24}}, i[[SZ]] 4, i32 (i32, i8*)* bitcast (i32 (i32, %{{.+}}*)* [[TASK_ENTRY2:@.+]] to i32 (i32, i8*)*))
+  // CHECK:       [[BC_TASK:%.+]] = bitcast i8* [[TASK]] to [[TASK_TY2:%.+]]*
+  // CHECK:       getelementptr inbounds [1 x %struct.kmp_depend_info], [1 x %struct.kmp_depend_info]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 0
+  // CHECK:       [[DEP_START:%.+]] = getelementptr inbounds [1 x %struct.kmp_depend_info], [1 x %struct.kmp_depend_info]* %{{.+}}, i32 0, i32 0
+  // CHECK:       [[DEP:%.+]] = bitcast %struct.kmp_depend_info* [[DEP_START]] to i8*
+  // CHECK:       call void @__kmpc_omp_wait_deps(%ident_t* [[IN]], i32 [[GTID]], i32 1, i8* [[DEP]], i32 0, i8* null)
+  // CHECK:       call void @__kmpc_omp_task_begin_if0(%ident_t* [[IN]], i32 [[GTID]], i8* [[TASK]])
+  // CHECK:       call i32 [[TASK_ENTRY2]](i32 [[GTID]], [[TASK_TY2]]* [[BC_TASK]])
+  // CHECK:       call void @__kmpc_omp_task_complete_if0(%ident_t* [[IN]], i32 [[GTID]], i8* [[TASK]])
+  #pragma omp target parallel for simd if(0) firstprivate(global) depend(out:global)
+  for (int i = 0; i < global; ++i) {
+    global += 1;
+  }
+
+  return a;
+}
+
+// Check that the offloading functions are emitted and that the arguments are
+// correct and loaded correctly for the target regions in foo().
+
+// CHECK:       define internal void [[HVT0:@.+]]()
+
+// CHECK:       define internal{{.*}} i32 [[TASK_ENTRY0]](i32{{.*}}, [[TASK_TY0]]* noalias)
+// CHECK:       store void (i8*, ...)* null, void (i8*, ...)** %
+// CHECK:       [[DEVICE_CAP:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i32 0, i32 0
+// CHECK:       [[DEV:%.+]] = load i32, i32* [[DEVICE_CAP]],
+// CHECK:       [[DEVICE:%.+]] = sext i32 [[DEV]] to i64
+// CHECK:       [[RET:%.+]] = call i32 @__tgt_target_teams(i64 [[DEVICE]], i8* @{{[^,]+}}, i32 0, i8** null, i8** null, i[[SZ]]* null, i64* null, i32 1, i32 0)
+// CHECK-NEXT:  [[ERROR:%.+]] = icmp ne i32 [[RET]], 0
+// CHECK-NEXT:  br i1 [[ERROR]], label %[[FAIL:[^,]+]], label %[[END:[^,]+]]
+// CHECK:       [[FAIL]]
+// CHECK:       call void [[HVT0]]()
+// CHECK-NEXT:  br label %[[END]]
+// CHECK:       [[END]]
+// CHECK:       ret i32 0
+
+// CHECK:       define internal void [[HVT1:@.+]](i[[SZ]]* %{{.+}}, i[[SZ]] %{{.+}})
+
+// CHECK:       define internal{{.*}} i32 [[TASK_ENTRY1_]](i32{{.*}}, [[TASK_TY1_]]* noalias)
+// CHECK:       call void (i8*, ...) %
+// CHECK:       [[SZT:%.+]] = getelementptr inbounds [2 x i[[SZ]]], [2 x i[[SZ]]]* %{{.+}}, i[[SZ]] 0, i[[SZ]] 0
+// CHECK:       [[DEVICE_CAP:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i32 0, i32 2
+// CHECK:       [[DEV:%.+]] = load i32, i32* [[DEVICE_CAP]],
+// CHECK:       [[DEVICE:%.+]] = sext i32 [[DEV]] to i64
+// CHECK:       [[RET:%.+]] = call i32 @__tgt_target_teams_nowait(i64 [[DEVICE]], i8* @{{[^,]+}}, i32 2, i8** [[BPR:%[^,]+]], i8** [[PR:%[^,]+]], i[[SZ]]* [[SZT]], i64* getelementptr inbounds ([2 x i64], [2 x i64]* [[MAPT]], i32 0, i32 0), i32 1, i32 0)
+
+// CHECK:       [[ERROR:%.+]] = icmp ne i32 [[RET]], 0
+// CHECK-NEXT:  br i1 [[ERROR]], label %[[FAIL:[^,]+]], label %[[END:[^,]+]]
+// CHECK:       [[FAIL]]
+// CHECK:       [[BP0:%.+]] = load i[[SZ]]*, i[[SZ]]** %
+// CHECK:       [[BP1_I32:%.+]] = load i32, i32* %
+// CHECK-64:    [[BP1_CAST:%.+]] = bitcast i[[SZ]]* [[BP1_PTR:%.+]] to i32*
+// CHECK-64:    store i32 [[BP1_I32]], i32* [[BP1_CAST]],
+// CHECK-32:    store i32 [[BP1_I32]], i32* [[BP1_PTR:%.+]],
+// CHECK:       [[BP1:%.+]] = load i[[SZ]], i[[SZ]]* [[BP1_PTR]],
+// CHECK:       call void [[HVT1]](i[[SZ]]* [[BP0]], i[[SZ]] [[BP1]])
+// CHECK-NEXT:  br label %[[END]]
+// CHECK:       [[END]]
+// CHECK:       ret i32 0
+
+// CHECK:       define internal{{.*}} i32 [[TASK_ENTRY1__]](i32{{.*}}, [[TASK_TY1__]]* noalias)
+// CHECK:       call void (i8*, ...) %
+// CHECK:       [[DEVICE_CAP:%.+]] = getelementptr inbounds %{{.+}}, %{{.+}}* %{{.+}}, i32 0, i32 2
+// CHECK:       [[BP0:%.+]] = load i[[SZ]]*, i[[SZ]]** %
+// CHECK:       [[BP1_I32:%.+]] = load i32, i32* %
+// CHECK-64:    [[BP1_CAST:%.+]] = bitcast i[[SZ]]* [[BP1_PTR:%.+]] to i32*
+// CHECK-64:    store i32 [[BP1_I32]], i32* [[BP1_CAST]],
+// CHECK-32:    store i32 [[BP1_I32]], i32* [[BP1_PTR:%.+]],
+// CHECK:       [[BP1:%.+]] = load i[[SZ]], i[[SZ]]* [[BP1_PTR]],
+// CHECK:       call void [[HVT1]](i[[SZ]]* [[BP0]], i[[SZ]] [[BP1]])
+// CHECK:       ret i32 0
+
+// CHECK:       define internal void [[HVT2:@.+]](i[[SZ]] %{{.+}})
+// Create stack storage and store argument in there.
+// CHECK:       [[AA_ADDR:%.+]] = alloca i[[SZ]], align
+// CHECK:       store i[[SZ]] %{{.+}}, i[[SZ]]* [[AA_ADDR]], align
+// CHECK-64:    [[AA_CADDR:%.+]] = bitcast i[[SZ]]* [[AA_ADDR]] to i32*
+// CHECK-64:    load i32, i32* [[AA_CADDR]], align
+// CHECK-32:    load i32, i32* [[AA_ADDR]], align
+
+// CHECK:       define internal{{.*}} i32 [[TASK_ENTRY2]](i32{{.*}}, [[TASK_TY2]]* noalias)
+// CHECK:       call void (i8*, ...) %
+// CHECK:       [[BP1_I32:%.+]] = load i32, i32* %
+// CHECK-64:    [[BP1_CAST:%.+]] = bitcast i[[SZ]]* [[BP1_PTR:%.+]] to i32*
+// CHECK-64:    store i32 [[BP1_I32]], i32* [[BP1_CAST]],
+// CHECK-32:    store i32 [[BP1_I32]], i32* [[BP1_PTR:%.+]],
+// CHECK:       [[BP1:%.+]] = load i[[SZ]], i[[SZ]]* [[BP1_PTR]],
+// CHECK:       call void [[HVT2]](i[[SZ]] [[BP1]])
+// CHECK:       ret i32 0
+
+
+#endif