Add minimal command line support for the VSX powerpc processor.

Preprocessor support is still needed.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192839 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 22c4cdc..d850cb3 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -1017,6 +1017,8 @@
 def ffixed_r9 : Flag<["-"], "ffixed-r9">, Group<m_arm_Features_Group>,
   HelpText<"Reserve the r9 register (ARM only)">;
 
+def mvsx : Flag<["-"], "mvsx">, Group<m_ppc_Features_Group>;
+def mno_vsx : Flag<["-"], "mno-vsx">, Group<m_ppc_Features_Group>;
 def mfprnd : Flag<["-"], "mfprnd">, Group<m_ppc_Features_Group>;
 def mno_fprnd : Flag<["-"], "mno-fprnd">, Group<m_ppc_Features_Group>;
 def mmfcrf : Flag<["-"], "mmfcrf">, Group<m_ppc_Features_Group>;
diff --git a/test/Driver/ppc-features.cpp b/test/Driver/ppc-features.cpp
index 7544c64..6959c62 100644
--- a/test/Driver/ppc-features.cpp
+++ b/test/Driver/ppc-features.cpp
@@ -85,3 +85,10 @@
 
 // RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-fprnd -mfprnd -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-FPRND %s
 // CHECK-FPRND: "-target-feature" "+fprnd"
+
+// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-vsx -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-NOVSX %s
+// CHECK-NOVSX: "-target-feature" "-vsx"
+
+// RUN: %clang -target powerpc64-unknown-linux-gnu %s -mno-vsx -mvsx -### -o %t.o 2>&1 | FileCheck -check-prefix=CHECK-VSX %s
+// CHECK-VSX: "-target-feature" "+vsx"
+