From fd4451674b0f7c631fe69548e473d02e912ce386 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Thu, 8 Sep 2011 21:00:31 +0000
Subject: [PATCH] Make sure to handle the case where emitPredicateMatch returns
 false.  Noticed by inspection.

llvm-svn: 139317
---
 utils/TableGen/FixedLenDecoderEmitter.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/utils/TableGen/FixedLenDecoderEmitter.cpp b/utils/TableGen/FixedLenDecoderEmitter.cpp
index 61a0d614a47..33c97c9c2df 100644
--- a/utils/TableGen/FixedLenDecoderEmitter.cpp
+++ b/utils/TableGen/FixedLenDecoderEmitter.cpp
@@ -818,7 +818,8 @@ bool FilterChooser::emitSingletonDecoder(raw_ostream &o, unsigned &Indentation,
   // If we have matched all the well-known bits, just issue a return.
   if (Size == 0) {
     o.indent(Indentation) << "if (";
-    emitPredicateMatch(o, Indentation, Opc);
+    if (!emitPredicateMatch(o, Indentation, Opc))
+      o << "1";
     o << ") {\n";
     o.indent(Indentation) << "  MI.setOpcode(" << Opc << ");\n";
     std::vector<OperandInfo>& InsnOperands = Operands[Opc];