Do not register ppc64 yet, as it breaks the SparcV9 backend


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15955 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index 084eb3d..fa2455c 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -42,8 +42,11 @@
   // Register the targets
   RegisterTarget<PPC32TargetMachine> 
   X("ppc32", "  PowerPC 32-bit (experimental)");
+
+#if 0
   RegisterTarget<PPC64TargetMachine> 
   Y("ppc64", "  PowerPC 64-bit (unimplemented)");
+#endif
 }
 
 PowerPCTargetMachine::PowerPCTargetMachine(const std::string &name,