silence some bogus gcc warnings


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24962 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DAGISelEmitter.cpp b/utils/TableGen/DAGISelEmitter.cpp
index 62581ee..82a6eac 100644
--- a/utils/TableGen/DAGISelEmitter.cpp
+++ b/utils/TableGen/DAGISelEmitter.cpp
@@ -2483,7 +2483,7 @@
      << "      CodeGenMap[N.getValue(1)] = New.getValue(1);\n"
      << "      return New.getValue(N.ResNo);\n"
      << "    } else {\n"
-     << "      SDOperand Flag;\n"
+     << "      SDOperand Flag(0, 0);\n"
      << "      if (N.getNumOperands() == 3) Flag = Select(N.getOperand(2));\n"
      << "      if (Chain == N.getOperand(0) &&\n"
      << "          (N.getNumOperands() == 2 || Flag == N.getOperand(2)))\n"
@@ -2505,7 +2505,7 @@
      << "        Result = CurDAG->getCopyToReg(Chain, Reg, Val);\n"
      << "      return CodeGenMap[N] = Result;\n"
      << "    } else {\n"
-     << "      SDOperand Flag;\n"
+     << "      SDOperand Flag(0, 0);\n"
      << "      if (N.getNumOperands() == 4) Flag = Select(N.getOperand(3));\n"
      << "      if (Chain != N.getOperand(0) || Val != N.getOperand(2) ||\n"
      << "          (N.getNumOperands() == 4 && Flag != N.getOperand(3)))\n"