PPCDarwinAsmPrinter::EmitStartOfAsmFile(): Add possible elements in CPUDirectives[].

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174297 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 839f918..b2d9ab2 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -821,7 +821,12 @@
     "ppcA2",
     "ppce500mc",
     "ppce5500",
+    "power3",
+    "power4",
+    "power5",
+    "power5x",
     "power6",
+    "power6x",
     "power7",
     "ppc64"
   };