commit 8e68c3873549ca31533e2e3e40dda3a43cb79566
author Jeffrey Yasskin <jyasskin@google.com> Thu Dec 23 00:58:24 2010 +0000
committer Jeffrey Yasskin <jyasskin@google.com> Thu Dec 23 00:58:24 2010 +0000
tree 66cf9b65eff62b5ad43e27bb1751a6118ed971a2
parent 65e43a259ff532f66ff1f04bd5d67c17bcffdc9d

Change all self assignments X=X to (void)X, so that we can turn on a
new gcc warning that complains on self-assignments and
self-initializations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/CodeEmitterGen.cpp

diff --git a/utils/TableGen/CodeEmitterGen.cpp b/utils/TableGen/CodeEmitterGen.cpp
index 9d0f3fd..5625fe4 100644
--- a/utils/TableGen/CodeEmitterGen.cpp
+++ b/utils/TableGen/CodeEmitterGen.cpp
@@ -264,7 +264,7 @@
   o << "  const unsigned opcode = MI.getOpcode();\n"
     << "  unsigned Value = InstBits[opcode];\n"
     << "  unsigned op = 0;\n"
-    << "  op = op;  // suppress warning\n"
+    << "  (void)op;  // suppress warning\n"
     << "  switch (opcode) {\n";
 
   // Emit each case statement