[OPENMP] Codegen for threadprivate variables

For all threadprivate variables which have constructor/destructor emit call to void __kmpc_threadprivate_register(ident_t * <Current Location>, void *<Original Global Addr>, kmpc_ctor <Constructor>, kmpc_cctor NULL, kmpc_dtor <Destructor>); 
In expressions all references to such variables are replaced by calls to void *__kmpc_threadprivate_cached(ident_t *<Current Location>, kmp_int32 <Current Thread Id>, void *<Original Global Addr>, size_t <Size of Data>, void ***<Pointer to autogenerated cache – array of private copies of threadprivate variable>);
Test test/OpenMP/threadprivate_codegen.cpp checks that codegen is correct. Also it checks that codegen is correct after serialization/deserialization and one of passes verifies debug info.
Differential Revision: http://reviews.llvm.org/D4002

llvm-svn: 221663

1 files changed, 26 insertions, 0 deletions

diff --git a/clang/test/PCH/chain-openmp-threadprivate.cpp b/clang/test/PCH/chain-openmp-threadprivate.cpp
new file mode 100644
index 00000000000..5187257b06e
--- /dev/null
+++ b/clang/test/PCH/chain-openmp-threadprivate.cpp
@@ -0,0 +1,26 @@
+// no PCH
+// RUN: %clang_cc1 -fopenmp=libiomp5 -emit-llvm -include %s -include %s %s -o - | FileCheck %s
+// with PCH
+// RUN: %clang_cc1 -fopenmp=libiomp5 -emit-llvm -chain-include %s -chain-include %s %s -o - | FileCheck %s
+#if !defined(PASS1)
+#define PASS1
+
+extern "C" int* malloc (int size);
+int *a = malloc(20);
+
+#elif !defined(PASS2)
+#define PASS2
+
+#pragma omp threadprivate(a)
+
+#else
+
+// CHECK: call {{.*}} @__kmpc_threadprivate_register(
+
+// CHECK-LABEL: foo
+int foo() {
+  return *a;
+  // CHECK: call {{.*}} @__kmpc_global_thread_num(
+  // CHECK: call {{.*}} @__kmpc_threadprivate_cached(
+}
+#endif