[OPENMP] Test for 'omp barrier' directive

llvm-svn: 223445

diff --git a/clang/test/OpenMP/barrier_codegen.cpp b/clang/test/OpenMP/barrier_codegen.cpp
new file mode 100644 (file)
index 0000000..2e817c1
--- /dev/null
+++ b/clang/test/OpenMP/barrier_codegen.cpp
@@ -0,0 +1,41 @@
+// RUN: %clang_cc1 -verify -fopenmp=libiomp5 -x c++ -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -std=c++11 -triple x86_64-unknown-unknown -emit-pch -o %t %s
+// RUN: %clang_cc1 -fopenmp=libiomp5 -x c++ -triple x86_64-unknown-unknown -std=c++11 -include-pch %t -verify %s -emit-llvm -o - | FileCheck %s
+// expected-no-diagnostics
+
+#ifndef HEADER
+#define HEADER
+
+// CHECK: [[IDENT_T:%.+]] = type { i32, i32, i32, i32, i8* }
+// CHECK-DAG: [[EXPLICIT_BARRIER_LOC:@.+]] = {{.+}} [[IDENT_T]] { i32 0, i32 34, i32 0, i32 0, i8* getelementptr inbounds ([{{[0-9]+}} x i8]* @{{.+}}, i32 0, i32 0) }
+// CHECK-DAG: [[LOC:@.+]] = {{.+}} [[IDENT_T]] { i32 0, i32 2, i32 0, i32 0, i8* getelementptr inbounds ([{{[0-9]+}} x i8]* @{{.+}}, i32 0, i32 0) }
+
+void foo() {}
+
+template <class T>
+T tmain(T argc) {
+  static T a;
+#pragma omp barrier
+  return a + argc;
+}
+
+// CHECK-LABEL: @main
+int main(int argc, char **argv) {
+  static int a;
+#pragma omp barrier
+  // CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[IDENT_T]]* [[LOC]])
+  // CHECK: call i32 @__kmpc_cancel_barrier([[IDENT_T]]* [[EXPLICIT_BARRIER_LOC]], i32 [[GTID]])
+  // CHECK: call {{.+}} [[TMAIN_INT:@.+]](i{{[0-9][0-9]}}
+  // CHECK: call {{.+}} [[TMAIN_CHAR:@.+]](i{{[0-9]}}
+  return tmain(argc) + tmain(argv[0][0]) + a;
+}
+
+// CHECK: define {{.+}} [[TMAIN_INT]](
+// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[IDENT_T]]* [[LOC]])
+// CHECK: call i32 @__kmpc_cancel_barrier([[IDENT_T]]* [[EXPLICIT_BARRIER_LOC]], i32 [[GTID]])
+
+// CHECK: define {{.+}} [[TMAIN_CHAR]](
+// CHECK: [[GTID:%.+]] = call i32 @__kmpc_global_thread_num([[IDENT_T]]* [[LOC]])
+// CHECK: call i32 @__kmpc_cancel_barrier([[IDENT_T]]* [[EXPLICIT_BARRIER_LOC]], i32 [[GTID]])
+
+#endif