Note that we don't support COFF on PPC.

Should bring back the windows bots.

llvm-svn: 232701
diff --git a/llvm/lib/Support/Triple.cpp b/llvm/lib/Support/Triple.cpp
index 4b4ee28..58af8d9 100644
--- a/llvm/lib/Support/Triple.cpp
+++ b/llvm/lib/Support/Triple.cpp
@@ -453,6 +453,13 @@
   case Triple::sparcv9:
   case Triple::systemz:
   case Triple::xcore:
+  case Triple::ppc64le:
+    return Triple::ELF;
+
+  case Triple::ppc:
+  case Triple::ppc64:
+    if (T.isOSDarwin())
+      return Triple::MachO;
     return Triple::ELF;
   }