For PR786:

Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/CBackend/Writer.cpp b/llvm/lib/Target/CBackend/Writer.cpp
index 4a04e023eac..15bf06a6e2a 100644
--- a/llvm/lib/Target/CBackend/Writer.cpp
+++ b/llvm/lib/Target/CBackend/Writer.cpp
@@ -702,7 +702,7 @@ void CWriter::printConstant(Constant *CPV) {
         // The prefix for a quiet NaN is 0x7FF8. For a signalling NaN,
         // it's 0x7ff4.
         const unsigned long QuietNaN = 0x7ff8UL;
-        const unsigned long SignalNaN = 0x7ff4UL;
+        //const unsigned long SignalNaN = 0x7ff4UL;
 
         // We need to grab the first part of the FP #
         char Buffer[100];
@@ -2140,7 +2140,7 @@ void CWriter::printIndexingExpression(Value *Ptr, gep_type_iterator I,
                                       gep_type_iterator E) {
   bool HasImplicitAddress = false;
   // If accessing a global value with no indexing, avoid *(&GV) syndrome
-  if (GlobalValue *V = dyn_cast<GlobalValue>(Ptr)) {
+  if (isa<GlobalValue>(Ptr)) {
     HasImplicitAddress = true;
   } else if (isDirectAlloca(Ptr)) {
     HasImplicitAddress = true;