Dump the instruction that foiled ISel even when -debug is not used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55075 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

@@ -5129,7 +5129,9 @@ void SelectionDAGISel::BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
       if (!DisableFastISelAbort) {
         // The "fast" selector couldn't handle something and bailed.
         // For the purpose of debugging, just abort.
-        DEBUG(Begin->dump());
+#ifndef NDEBUG
+        Begin->dump();
+#endif
         assert(0 && "FastISel didn't select the entire block");
         abort();
       }