Unbreak the build on Sparc.

llvm-svn: 12161
diff --git a/llvm/lib/Analysis/DataStructure/Local.cpp b/llvm/lib/Analysis/DataStructure/Local.cpp
index a5636e4..0e4ab19 100644
--- a/llvm/lib/Analysis/DataStructure/Local.cpp
+++ b/llvm/lib/Analysis/DataStructure/Local.cpp
@@ -501,6 +501,8 @@
         getValueDest(*CS.getInstruction()).
           mergeWith(getValueDest(**(CS.arg_begin())));
         return;
+        // FIXME: the #undef is a quick fix for compilation on Sparc
+#undef va_end
       case Intrinsic::va_end:
         return;  // noop
       case Intrinsic::memmove: