Index: llvm-toolchain-snapshot_9~svn351647/clang/lib/Driver/ToolChains/Arch/X86.cpp
===================================================================
--- llvm-toolchain-snapshot_9~svn351647.orig/clang/lib/Driver/ToolChains/Arch/X86.cpp
+++ llvm-toolchain-snapshot_9~svn351647/clang/lib/Driver/ToolChains/Arch/X86.cpp
@@ -100,8 +100,8 @@ const char *x86::getX86TargetCPU(const A
   case llvm::Triple::Haiku:
     return "i586";
   default:
-    // Fallback to p4.
-    return "pentium4";
+    // Fallback to i686.
+    return "i686";
   }
 }