[libc++] Populate a lit feature including the compiler patch level

If the compiler is (for example) AppleClang 10.0.1, we would previously
populate the following lit features:

    apple-clang
    apple-clang-10
    apple-clang-10.0

This patch additionally populates a feature called 'apple-clang-10.0.1',
which allows more precise enabling/disabling of tests.

llvm-svn: 369406

diff --git a/libcxx/utils/libcxx/test/config.py b/libcxx/utils/libcxx/test/config.py
index e074df3..641bd4a 100644 (file)
--- a/libcxx/utils/libcxx/test/config.py
+++ b/libcxx/utils/libcxx/test/config.py
@@ -233,11 +233,13 @@ class Configuration(object):
         cxx_type = self.cxx.type
         if cxx_type is not None:
             assert self.cxx.version is not None
-            maj_v, min_v, _ = self.cxx.version
+            maj_v, min_v, patch_v = self.cxx.version
             self.config.available_features.add(cxx_type)
             self.config.available_features.add('%s-%s' % (cxx_type, maj_v))
             self.config.available_features.add('%s-%s.%s' % (
                 cxx_type, maj_v, min_v))
+            self.config.available_features.add('%s-%s.%s.%s' % (
+                cxx_type, maj_v, min_v, patch_v))
         self.cxx.compile_env = dict(os.environ)
         # 'CCACHE_CPP2' prevents ccache from stripping comments while
         # preprocessing. This is required to prevent stripping of '-verify'