Add support for has_feature(cxx_alignof) and has_feature(c_alignof).

r142020 added support for has_feature(cxx_alignas). This does the same for
alignof.

llvm-svn: 223186

3 files changed, 26 insertions, 4 deletions

diff --git a/clang/test/Lexer/has_extension.c b/clang/test/Lexer/has_extension.c
index 2ab3d1df37a..b7efece64e8 100644
--- a/clang/test/Lexer/has_extension.c
+++ b/clang/test/Lexer/has_extension.c
@@ -36,6 +36,14 @@ int has_c_alignas();
 int no_c_alignas();
 #endif
 
+// CHECK-PED-NONE: has_c_alignof
+// CHECK-PED-ERR: no_c_alignof
+#if __has_extension(c_alignof)
+int has_c_alignof();
+#else
+int no_c_alignof();
+#endif
+
 // Arbitrary feature to test that the extension name can be surrounded with
 // double underscores.
 // CHECK-PED-NONE: has_double_underscores
diff --git a/clang/test/Lexer/has_feature_c1x.c b/clang/test/Lexer/has_feature_c1x.c
index cba329cfb55..ff1778010b7 100644
--- a/clang/test/Lexer/has_feature_c1x.c
+++ b/clang/test/Lexer/has_feature_c1x.c
@@ -12,7 +12,6 @@ int has_atomic();
 #else
 int no_atomic();
 #endif
-
 // CHECK-1X: has_atomic
 // CHECK-NO-1X: no_atomic
 
@@ -21,7 +20,6 @@ int has_static_assert();
 #else
 int no_static_assert();
 #endif
-
 // CHECK-1X: has_static_assert
 // CHECK-NO-1X: no_static_assert
 
@@ -30,7 +28,6 @@ int has_generic_selections();
 #else
 int no_generic_selections();
 #endif
-
 // CHECK-1X: has_generic_selections
 // CHECK-NO-1X: no_generic_selections
 
@@ -39,10 +36,17 @@ int has_alignas();
 #else
 int no_alignas();
 #endif
-
 // CHECK-1X: has_alignas
 // CHECK-NO-1X: no_alignas
 
+#if __has_feature(c_alignof)
+int has_alignof();
+#else
+int no_alignof();
+#endif
+// CHECK-1X: has_alignof
+// CHECK-NO-1X: no_alignof
+
 #if __has_feature(c_thread_local)
 int has_thread_local();
 #else
diff --git a/clang/test/Lexer/has_feature_cxx0x.cpp b/clang/test/Lexer/has_feature_cxx0x.cpp
index e558f8804b2..9fb05de31a2 100644
--- a/clang/test/Lexer/has_feature_cxx0x.cpp
+++ b/clang/test/Lexer/has_feature_cxx0x.cpp
@@ -234,6 +234,16 @@ int no_alignas();
 // CHECK-11: has_alignas
 // CHECK-NO-11: no_alignas
 
+#if __has_feature(cxx_alignof)
+int has_alignof();
+#else
+int no_alignof();
+#endif
+
+// CHECK-1Y: has_alignof
+// CHECK-11: has_alignof
+// CHECK-NO-11: no_alignof
+
 #if __has_feature(cxx_raw_string_literals)
 int has_raw_string_literals();
 #else