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

6 files changed, 1 insertions, 9 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index aafc7825f44..ee57cbaaba8 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -249,7 +249,6 @@ namespace {
     DarwinAsmPrinter(std::ostream &O, PPCTargetMachine &TM,
                      const TargetAsmInfo *T)
       : PPCAsmPrinter(O, TM, T), DW(O, this, T) {
-      bool isPPC64 = Subtarget.isPPC64();
     }
 
     virtual const char *getPassName() const {
@@ -308,7 +307,6 @@ void PPCAsmPrinter::printOp(const MachineOperand &MO) {
     // Computing the address of a global symbol, not calling it.
     GlobalValue *GV = MO.getGlobal();
     std::string Name = Mang->getValueName(GV);
-    int offset = MO.getOffset();
 
     // External or weakly linked global variables need non-lazily-resolved stubs
     if (TM.getRelocationModel() != Reloc::Static) {
diff --git a/llvm/lib/Target/PowerPC/PPCCodeEmitter.cpp b/llvm/lib/Target/PowerPC/PPCCodeEmitter.cpp
index 464044aa529..c321cbcdee6 100644
--- a/llvm/lib/Target/PowerPC/PPCCodeEmitter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCCodeEmitter.cpp
@@ -91,7 +91,6 @@ void PPCCodeEmitter::emitBasicBlock(MachineBasicBlock &MBB) {
   
   for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end(); I != E; ++I){
     MachineInstr &MI = *I;
-    unsigned Opcode = MI.getOpcode();
     switch (MI.getOpcode()) {
     default:
       MCE.emitWordBE(getBinaryCodeForInstr(*I));
diff --git a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 2bfaa2d72eb..aee156c4440 100644
--- a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -1134,7 +1134,6 @@ SDNode *PPCDAGToDAGISel::Select(SDOperand Op) {
     SDOperand CCReg = SelectCC(N->getOperand(0), N->getOperand(1), CC);
     unsigned BROpc = getBCCForSetCC(CC);
 
-    bool isFP = MVT::isFloatingPoint(N->getValueType(0));
     unsigned SelectCCOp;
     if (N->getValueType(0) == MVT::i32)
       SelectCCOp = PPC::SELECT_CC_I4;
@@ -1218,7 +1217,6 @@ SDNode *PPCDAGToDAGISel::MySelect_PPCcall(SDOperand N) {
   SDOperand Chain(0, 0);
   SDOperand N1(0, 0);
   SDOperand Tmp0(0, 0);
-  SDNode *ResNode;
   Chain = N.getOperand(0);
   N1 = N.getOperand(1);
   
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 26a1f21275b..184b4bfffbd 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -942,9 +942,7 @@ static SDNode *isBLACompatibleAddress(SDOperand Op, SelectionDAG &DAG) {
 
 static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) {
   SDOperand Chain = Op.getOperand(0);
-  unsigned CallingConv= cast<ConstantSDNode>(Op.getOperand(1))->getValue();
   bool isVarArg       = cast<ConstantSDNode>(Op.getOperand(2))->getValue() != 0;
-  bool isTailCall     = cast<ConstantSDNode>(Op.getOperand(3))->getValue() != 0;
   SDOperand Callee    = Op.getOperand(4);
   unsigned NumOps     = (Op.getNumOperands() - 5) / 2;
 
diff --git a/llvm/lib/Target/PowerPC/PPCMachOWriter.cpp b/llvm/lib/Target/PowerPC/PPCMachOWriter.cpp
index 8d6de73372f..59068e1cbb8 100644
--- a/llvm/lib/Target/PowerPC/PPCMachOWriter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCMachOWriter.cpp
@@ -99,7 +99,7 @@ void PPCMachOWriter::GetTargetRelocation(MachineRelocation &MR,
   case PPC::reloc_pcrel_bx:
     Addr -= MR.getMachineCodeOffset();
     Addr >>= 2;
-    Addr & 0xFFFFFF;
+    // ??? Addr & 0xFFFFFF;  Possibly this was supposed to be Addr &= 0xFFFFFF ?
     Addr <<= 2;
     Addr |= (MOS.SectionData[MR.getMachineCodeOffset()] << 24);
     fixword(MOS.SectionData, Addr, MR.getMachineCodeOffset());
diff --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 34c23bd1faa..98ada71eb0f 100644
--- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -370,7 +370,6 @@ MachineInstr *PPCRegisterInfo::foldMemoryOperand(MachineInstr *MI,
 //
 static bool hasFP(const MachineFunction &MF) {
   const MachineFrameInfo *MFI = MF.getFrameInfo();
-  unsigned TargetAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
 
   // If frame pointers are forced, or if there are variable sized stack objects,
   // use a frame pointer.