TableGen: Add initializer.

Keep GCC's warnings happy. It can't reason out that the state machine won't
ever hit the potentially uninitialized use in OPC_FilterValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164041 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/TableGen/FixedLenDecoderEmitter.cpp b/utils/TableGen/FixedLenDecoderEmitter.cpp
index aa6d7962a0720a5972179603b6db43541fb1835a..e755c1ce9cb5aab3bacec94512bac3a12b2933ac 100644 (file)
--- a/utils/TableGen/FixedLenDecoderEmitter.cpp
+++ b/utils/TableGen/FixedLenDecoderEmitter.cpp
@@ -1882,7 +1882,7 @@ static void emitDecodeInstruction(formatted_raw_ostream &OS) {
      << "  uint64_t Bits = STI.getFeatureBits();\n"
      << "\n"
      << "  const uint8_t *Ptr = DecodeTable;\n"
-     << "  uint32_t CurFieldValue;\n"
+     << "  uint32_t CurFieldValue = 0;\n"
      << "  DecodeStatus S = MCDisassembler::Success;\n"
      << "  for (;;) {\n"
      << "    ptrdiff_t Loc = Ptr - DecodeTable;\n"