[asan] Make the global_metadata_darwin.ll test require El Capitan or newer

llvm-svn: 264758

llvm/test/Instrumentation/AddressSanitizer/global_metadata_darwin.ll

@@ -2,6 +2,7 @@
 ; allowing dead stripping to be performed, and that the appropriate runtime
 ; routines are invoked.
 
+; REQUIRES: ld64_live_support
 ; RUN: opt < %s -asan -asan-module -S | FileCheck %s
 
 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"

llvm/test/lit.cfg

@@ -429,6 +429,18 @@ def have_ld64_plugin_support():
 if have_ld64_plugin_support():
     config.available_features.add('ld64_plugin')
 
+
+# Check if ld64 knows about live_support (OS X El Capital and newer).
+if config.host_os == 'Darwin':
+  try:
+    osx_version = subprocess.check_output(["sw_vers", "-productVersion"])
+    osx_version = tuple(int(x) for x in osx_version.split('.'))
+    if osx_version >= (10, 11):
+      config.available_features.add('ld64_live_support')
+  except:
+    pass
+
+
 # Ask llvm-config about assertion mode.
 try:
     llvm_config_cmd = subprocess.Popen(