--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/projects/compiler-rt/test/esan/lit.cfg	Fri Feb 16 21:02:11 2018 +0900
@@ -0,0 +1,44 @@
+# -*- Python -*-
+
+import os
+
+# Setup config name.
+config.name = 'EfficiencySanitizer' + config.name_suffix
+
+# Setup source root.
+config.test_source_root = os.path.dirname(__file__)
+
+# Setup default compiler flags used with -fsanitize=efficiency option.
+base_cflags = ([config.target_cflags] + config.debug_info_flags)
+base_cxxflags = config.cxx_mode_flags + base_cflags
+
+frag_cflags = (["-fsanitize=efficiency-cache-frag"] + base_cflags)
+wset_cflags = (["-fsanitize=efficiency-working-set"] + base_cflags)
+esan_incdir = config.test_source_root + "/../../lib"
+unit_cxxflags = (["-I%s" % esan_incdir, "-std=c++11",
+                  # We need to link with the esan runtime.
+                  # Tests should pass %env_esan_opts="record_snapshots=0".
+                  "-fsanitize=efficiency-working-set"] + base_cxxflags)
+
+def build_invocation(compile_flags):
+  return " " + " ".join([config.clang] + compile_flags) + " "
+
+config.substitutions.append( ("%clang ",
+                              build_invocation(base_cflags)) )
+config.substitutions.append( ("%clang_esan_frag ",
+                              build_invocation(frag_cflags)) )
+config.substitutions.append( ("%clang_esan_wset ",
+                              build_invocation(wset_cflags)) )
+config.substitutions.append( ("%clangxx_unit",
+                              build_invocation(unit_cxxflags)) )
+
+default_esan_opts = ''
+config.substitutions.append(('%env_esan_opts=',
+                             'env ESAN_OPTIONS=' + default_esan_opts))
+
+# Default test suffixes.
+config.suffixes = ['.c', '.cpp']
+
+# EfficiencySanitizer tests are currently supported on Linux x86-64 only.
+if config.host_os not in ['Linux'] or config.target_arch not in ['x86_64', 'mips64'] :
+  config.unsupported = True