Add "native" to config.available_features, to make it easier to disable non-x-compile-safe tests

Patch by Artyom Skrobov!

llvm-svn: 190679

llvm/test/ExecutionEngine/MCJIT/lit.local.cfg

@@ -20,3 +20,7 @@ if 'i386-apple-darwin'  in root.target_triple:
 
 if 'powerpc' in root.target_triple and not 'powerpc64' in root.target_triple:
     config.unsupported = True
+
+# ExecutionEngine tests are not expected to pass in a cross-compilation setup.
+if 'native' not in config.available_features:
+    config.unsupported = True

llvm/test/ExecutionEngine/lit.local.cfg

@@ -3,3 +3,7 @@ if config.root.host_arch in ['PowerPC', 'AArch64', 'SystemZ']:
 
 if 'hexagon' in config.root.target_triple:
     config.unsupported = True
+
+# ExecutionEngine tests are not expected to pass in a cross-compilation setup.
+if 'native' not in config.available_features:
+    config.unsupported = True

llvm/test/lit.cfg

@@ -279,6 +279,10 @@ if not 'hexagon' in config.target_triple:
 if config.have_zlib == "1":
     config.available_features.add("zlib")
 
+# Native compilation: host arch == target arch
+if config.host_arch in config.target_triple:
+    config.available_features.add("native")
+
 # llc knows whether he is compiled with -DNDEBUG.
 import subprocess
 try: