--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/PCH/chain-openmp-allocate.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,46 @@
+// no PCH
+// RUN: %clang_cc1 -fopenmp -fnoopenmp-use-tls -ast-print -include %s -include %s %s -o - | FileCheck %s
+// with PCH
+// RUN: %clang_cc1 -fopenmp -fnoopenmp-use-tls -ast-print -chain-include %s -chain-include %s %s -o - | FileCheck %s
+// no PCH
+// RUN: %clang_cc1 -fopenmp -ast-print -include %s -include %s %s -o - | FileCheck %s -check-prefix=CHECK-ALLOC-1
+// RUN: %clang_cc1 -fopenmp -ast-print -include %s -include %s %s -o - | FileCheck %s -check-prefix=CHECK-ALLOC-2
+// with PCH
+// RUN: %clang_cc1 -fopenmp -ast-print -chain-include %s -chain-include %s %s -o - | FileCheck %s -check-prefix=CHECK-ALLOC-1
+// RUN: %clang_cc1 -fopenmp -ast-print -chain-include %s -chain-include %s %s -o - | FileCheck %s -check-prefix=CHECK-ALLOC-2
+
+#if !defined(PASS1)
+#define PASS1
+
+typedef void **omp_allocator_handle_t;
+extern const omp_allocator_handle_t omp_default_mem_alloc;
+extern const omp_allocator_handle_t omp_large_cap_mem_alloc;
+extern const omp_allocator_handle_t omp_const_mem_alloc;
+extern const omp_allocator_handle_t omp_high_bw_mem_alloc;
+extern const omp_allocator_handle_t omp_low_lat_mem_alloc;
+extern const omp_allocator_handle_t omp_cgroup_mem_alloc;
+extern const omp_allocator_handle_t omp_pteam_mem_alloc;
+extern const omp_allocator_handle_t omp_thread_mem_alloc;
+
+int a;
+// CHECK: int a;
+
+#elif !defined(PASS2)
+#define PASS2
+
+#pragma omp allocate(a) allocator(omp_default_mem_alloc)
+// CHECK: #pragma omp allocate(a) allocator(omp_default_mem_alloc)
+
+#else
+
+// CHECK-LABEL: foo
+// CHECK-ALLOC-LABEL: foo
+int foo() {
+  return a;
+  // CHECK: return a;
+  // CHECK-ALLOC-1: return a;
+}
+
+// CHECK-ALLOC-2: return a;
+
+#endif