Comment and reorganize some of the target feature option sets.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@256509 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 5ee9115ec7995c027790ccaa4743e46f0ac4e318..337a16702db8932ff42972d8801aedfeb24c5299 100644 (file)
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -78,13 +78,24 @@ def g_flags_Group         : OptionGroup<"<g flags group>">;
 def i_Group               : OptionGroup<"<i group>">, Group<CompileOnly_Group>;
 def clang_i_Group         : OptionGroup<"<clang i group>">, Group<i_Group>;
 def m_Group               : OptionGroup<"<m group>">, Group<CompileOnly_Group>;
-def m_x86_Features_Group  : OptionGroup<"<m x86 features group>">, Group<m_Group>, Flags<[CoreOption]>;
-def m_hexagon_Features_Group  : OptionGroup<"<m hexagon features group>">, Group<m_Group>;
-def m_arm_Features_Group  : OptionGroup<"<m arm features group>">, Group<m_Group>;
-def m_aarch64_Features_Group  : OptionGroup<"<m aarch64 features group>">, Group<m_Group>;
-def m_ppc_Features_Group  : OptionGroup<"<m ppc features group>">, Group<m_Group>;
-def m_wasm_Features_Group : OptionGroup<"<m wasm features group>">,
-                                        Group<m_Group>;
+
+// Feature groups - these take command line options that correspond directly to
+// target specific features and can be translated directly from command line
+// options.
+def m_x86_Features_Group : OptionGroup<"<x86 features group>">,
+                           Group<m_Group>,
+                           Flags<[CoreOption]>;
+def m_hexagon_Features_Group : OptionGroup<"<hexagon features group>">,
+                               Group<m_Group>;
+def m_arm_Features_Group : OptionGroup<"<arm features group>">,
+                           Group<m_Group>;
+def m_aarch64_Features_Group : OptionGroup<"<aarch64 features group>">,
+                               Group<m_Group>;
+def m_ppc_Features_Group : OptionGroup<"<ppc features group>">,
+                           Group<m_Group>;
+def m_wasm_Features_Group : OptionGroup<"<wasm features group>">,
+                            Group<m_Group>;
+
 def m_libc_Group          : OptionGroup<"<m libc group>">, Group<m_Group>;
 def u_Group               : OptionGroup<"<u group>">;