Index: openmp/cmake/DetectTestCompiler/CMakeLists.txt
===================================================================
--- openmp/cmake/DetectTestCompiler/CMakeLists.txt
+++ openmp/cmake/DetectTestCompiler/CMakeLists.txt
@@ -9,6 +9,7 @@
   set(information "${information}\\;${CMAKE_${lang}_COMPILER_ID}")
   set(information "${information}\\;${CMAKE_${lang}_COMPILER_VERSION}")
   set(information "${information}\\;${${lang}_FLAGS}")
+  set(information "${information}\\;${${lang}_HAS_TSAN_FLAG}")
   file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${lang}CompilerInformation.txt ${information})
 endfunction(write_compiler_information)
 
@@ -39,5 +40,9 @@
   add_experimental_isel_flag(CXX)
 endif()
 
+SET(CMAKE_REQUIRED_FLAGS "-fsanitize=thread")
+check_c_compiler_flag("" C_HAS_TSAN_FLAG)
+check_cxx_compiler_flag("" CXX_HAS_TSAN_FLAG)
+
 write_compiler_information(C)
 write_compiler_information(CXX)
Index: openmp/cmake/OpenMPTesting.cmake
===================================================================
--- openmp/cmake/OpenMPTesting.cmake
+++ openmp/cmake/OpenMPTesting.cmake
@@ -64,11 +64,13 @@
   list(GET information 1 id)
   list(GET information 2 version)
   list(GET information 3 openmp_flags)
+  list(GET information 4 has_tsan_flags)
 
   set(OPENMP_TEST_${lang}_COMPILER_PATH ${path})
   set(OPENMP_TEST_${lang}_COMPILER_ID ${id})
   set(OPENMP_TEST_${lang}_COMPILER_VERSION ${version})
   set(OPENMP_TEST_${lang}_COMPILER_OPENMP_FLAGS ${openmp_flags})
+  set(OPENMP_TEST_${lang}_COMPILER_HAS_TSAN_FLAGS ${has_tsan_flags})
 endmacro()
 
 # Function to set variables with information about the test compiler.
@@ -84,6 +86,7 @@
     set(OPENMP_TEST_COMPILER_ID "${OPENMP_TEST_C_COMPILER_ID}" PARENT_SCOPE)
     set(OPENMP_TEST_COMPILER_VERSION "${OPENMP_TEST_C_COMPILER_VERSION}" PARENT_SCOPE)
     set(OPENMP_TEST_COMPILER_OPENMP_FLAGS "${OPENMP_TEST_C_COMPILER_OPENMP_FLAGS}" PARENT_SCOPE)
+    set(OPENMP_TEST_COMPILER_HAS_TSAN_FLAGS "${OPENMP_TEST_C_COMPILER_HAS_TSAN_FLAGS}" PARENT_SCOPE)
 
     # Determine major version.
     string(REGEX MATCH "[0-9]+" major "${OPENMP_TEST_C_COMPILER_VERSION}")
@@ -128,6 +131,11 @@
   else()
     set(OPENMP_TEST_COMPILER_THREAD_FLAGS "${CMAKE_THREAD_LIBS_INIT}")
   endif()
+  if(TARGET tsan)
+    set(OPENMP_TEST_COMPILER_HAS_TSAN_FLAGS 1)
+  else()
+    set(OPENMP_TEST_COMPILER_HAS_TSAN_FLAGS 0)
+  endif()
   # TODO: Implement blockaddress in GlobalISel and remove this flag!
   set(OPENMP_TEST_COMPILER_OPENMP_FLAGS "-fopenmp ${OPENMP_TEST_COMPILER_THREAD_FLAGS} -fno-experimental-isel")
 endif()
Index: openmp/tools/archer/tests/CMakeLists.txt
===================================================================
--- openmp/tools/archer/tests/CMakeLists.txt
+++ openmp/tools/archer/tests/CMakeLists.txt
@@ -16,6 +16,9 @@
 
 set(LIBARCHER_TEST_PATH ${CMAKE_CURRENT_SOURCE_DIR})
 
+set(LIBARCHER_TEST_FLAGS "" CACHE STRING
+  "Extra compiler flags to send to the test compiler.")
+
 macro(pythonize_bool var)
   if (${var})
     set(${var} True)
@@ -25,6 +28,7 @@
 endmacro()
 
 pythonize_bool(LIBARCHER_HAVE_LIBATOMIC)
+pythonize_bool(OPENMP_TEST_COMPILER_HAS_TSAN_FLAGS)
 
 add_openmp_testsuite(check-libarcher "Running libarcher tests" ${CMAKE_CURRENT_BINARY_DIR} DEPENDS archer)
 
Index: openmp/tools/archer/tests/lit.cfg
===================================================================
--- openmp/tools/archer/tests/lit.cfg
+++ openmp/tools/archer/tests/lit.cfg
@@ -46,7 +46,7 @@
     " -I " + config.omp_header_dir + \
     " -L " + config.omp_library_dir + \
     " -Wl,-rpath," + config.omp_library_dir + \
-    " " + config.test_extra_flags
+    " " + config.test_archer_flags
 
 config.archer_flags = "-g -O1 -fsanitize=thread"
 
@@ -81,6 +81,9 @@
 if 'Linux' in config.operating_system:
     config.available_features.add("linux")
 
+if config.has_tsan == True:
+    config.available_features.add("tsan")
+
 # to run with icc INTEL_LICENSE_FILE must be set
 if 'INTEL_LICENSE_FILE' in os.environ:
     config.environment['INTEL_LICENSE_FILE'] = os.environ['INTEL_LICENSE_FILE']
Index: openmp/tools/archer/tests/lit.site.cfg.in
===================================================================
--- openmp/tools/archer/tests/lit.site.cfg.in
+++ openmp/tools/archer/tests/lit.site.cfg.in
@@ -10,9 +10,10 @@
 config.omp_library_dir = "@LIBOMP_LIBRARY_DIR@"
 config.omp_header_dir = "@LIBOMP_INCLUDE_DIR@"
 config.operating_system = "@CMAKE_SYSTEM_NAME@"
-config.has_libatomic = "@LIBARCHER_HAVE_LIBATOMIC@"
+config.has_libatomic = @LIBARCHER_HAVE_LIBATOMIC@
+config.has_tsan = @OPENMP_TEST_COMPILER_HAS_TSAN_FLAGS@
 
-config.test_archer_flags = "@OPENMP_TEST_ARCHER_FLAGS@"
+config.test_archer_flags = "@LIBARCHER_TEST_FLAGS@"
 config.libarcher_obj_root = "@CMAKE_CURRENT_BINARY_DIR@"
 
 # Let the main config do the real work.
Index: openmp/tools/archer/tests/races/critical-unrelated.c
===================================================================
--- openmp/tools/archer/tests/races/critical-unrelated.c
+++ openmp/tools/archer/tests/races/critical-unrelated.c
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
 #include <omp.h>
@@ -40,4 +39,3 @@
 // CHECK-NEXT: #0 {{.*}}critical-unrelated.c:29
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/lock-nested-unrelated.c
===================================================================
--- openmp/tools/archer/tests/races/lock-nested-unrelated.c
+++ openmp/tools/archer/tests/races/lock-nested-unrelated.c
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
 #include <omp.h>
@@ -46,4 +45,3 @@
 // CHECK-NEXT: #0 {{.*}}lock-nested-unrelated.c:33
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/lock-unrelated.c
===================================================================
--- openmp/tools/archer/tests/races/lock-unrelated.c
+++ openmp/tools/archer/tests/races/lock-unrelated.c
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
 #include <omp.h>
@@ -46,4 +45,3 @@
 // CHECK-NEXT: #0 {{.*}}lock-unrelated.c:31
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/parallel-simple.c
===================================================================
--- openmp/tools/archer/tests/races/parallel-simple.c
+++ openmp/tools/archer/tests/races/parallel-simple.c
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
 #include <omp.h>
@@ -35,4 +34,3 @@
 // CHECK-NEXT: #0 {{.*}}parallel-simple.c:23
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/task-dependency.c
===================================================================
--- openmp/tools/archer/tests/races/task-dependency.c
+++ openmp/tools/archer/tests/races/task-dependency.c
@@ -11,13 +11,12 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
+#include "ompt/ompt-signal.h"
 #include <omp.h>
 #include <stdio.h>
 #include <unistd.h>
-#include "ompt/ompt-signal.h"
 
 int main(int argc, char *argv[]) {
   int var = 0, a = 0;
@@ -59,4 +58,3 @@
 // CHECK-NEXT: #0 {{.*}}task-dependency.c:30
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/task-taskgroup-unrelated.c
===================================================================
--- openmp/tools/archer/tests/races/task-taskgroup-unrelated.c
+++ openmp/tools/archer/tests/races/task-taskgroup-unrelated.c
@@ -13,10 +13,10 @@
 
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
+#include "ompt/ompt-signal.h"
 #include <omp.h>
 #include <stdio.h>
 #include <unistd.h>
-#include "ompt/ompt-signal.h"
 
 int main(int argc, char *argv[]) {
   int var = 0, a = 0;
@@ -54,9 +54,8 @@
 
 // CHECK: WARNING: ThreadSanitizer: data race
 // CHECK-NEXT:   {{(Write|Read)}} of size 4
-// CHECK-NEXT: #0 {{.*}}task-taskgroup-unrelated.c:46
+// CHECK-NEXT: #0 {{.*}}task-taskgroup-unrelated.c:47
 // CHECK:   Previous write of size 4
-// CHECK-NEXT: #0 {{.*}}task-taskgroup-unrelated.c:28
+// CHECK-NEXT: #0 {{.*}}task-taskgroup-unrelated.c:29
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/task-taskwait-nested.c
===================================================================
--- openmp/tools/archer/tests/races/task-taskwait-nested.c
+++ openmp/tools/archer/tests/races/task-taskwait-nested.c
@@ -11,13 +11,12 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
+#include "ompt/ompt-signal.h"
 #include <omp.h>
 #include <stdio.h>
 #include <unistd.h>
-#include "ompt/ompt-signal.h"
 
 int main(int argc, char *argv[]) {
   int var = 0, a = 0;
@@ -57,4 +56,3 @@
 // CHECK-NEXT: #0 {{.*}}task-taskwait-nested.c:44
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-
Index: openmp/tools/archer/tests/races/task-two.c
===================================================================
--- openmp/tools/archer/tests/races/task-two.c
+++ openmp/tools/archer/tests/races/task-two.c
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-
 // RUN: %libarcher-compile-and-run-race | FileCheck %s
 // REQUIRES: tsan
 #include <omp.h>
@@ -24,8 +23,8 @@
   int var = 0;
   int i;
 
-#pragma omp parallel for num_threads(NUM_THREADS) shared(var) schedule(static, \
-                                                                       1)
+#pragma omp parallel for num_threads(NUM_THREADS) shared(var)                  \
+    schedule(static, 1)
   for (i = 0; i < NUM_THREADS; i++) {
 #pragma omp task shared(var) if (0) // the task is inlined an executed locally
     { var++; }
@@ -43,4 +42,3 @@
 // CHECK-NEXT: #0 {{.*}}task-two.c:30
 // CHECK: DONE
 // CHECK: ThreadSanitizer: reported 1 warnings
-