Fix typo.

[oota-llvm.git] / lib / CodeGen / SelectionDAG / SelectionDAGBuild.cpp

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index b11ab0ec3ba9e9e6149287c2fb5e4834b1517886..c946bdad5d3a2db943dddf35e3de00a82216c71f 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -861,6 +861,10 @@ SDValue SelectionDAGLowering::getValue(const Value *V) {
       for (User::const_op_iterator OI = C->op_begin(), OE = C->op_end();
            OI != OE; ++OI) {
         SDNode *Val = getValue(*OI).getNode();
+        // If the operand is an empty aggregate, there are no values.
+        if (!Val) continue;
+        // Add each leaf value from the operand to the Constants list
+        // to form a flattened list of all the values.
         for (unsigned i = 0, e = Val->getNumValues(); i != e; ++i)
           Constants.push_back(SDValue(Val, i));
       }
@@ -989,7 +993,8 @@ void SelectionDAGLowering::visitRet(ReturnInst &I) {
   }
 
   bool isVarArg = DAG.getMachineFunction().getFunction()->isVarArg();
-  unsigned CallConv = DAG.getMachineFunction().getFunction()->getCallingConv();
+  CallingConv::ID CallConv =
+    DAG.getMachineFunction().getFunction()->getCallingConv();
   Chain = TLI.LowerReturn(Chain, CallConv, isVarArg,
                           Outs, getCurDebugLoc(), DAG);
 
@@ -1713,11 +1718,8 @@ bool SelectionDAGLowering::handleJTSwitchCase(CaseRec& CR,
   MachineFunction *CurMF = FuncInfo.MF;
 
   // Figure out which block is immediately after the current one.
-  MachineBasicBlock *NextBlock = 0;
   MachineFunction::iterator BBI = CR.CaseBB;
-
-  if (++BBI != FuncInfo.MF->end())
-    NextBlock = BBI;
+  ++BBI;
 
   const BasicBlock *LLVMBB = CR.CaseBB->getBasicBlock();
 
@@ -1786,11 +1788,8 @@ bool SelectionDAGLowering::handleBTSplitSwitchCase(CaseRec& CR,
   MachineFunction *CurMF = FuncInfo.MF;
 
   // Figure out which block is immediately after the current one.
-  MachineBasicBlock *NextBlock = 0;
   MachineFunction::iterator BBI = CR.CaseBB;
-
-  if (++BBI != FuncInfo.MF->end())
-    NextBlock = BBI;
+  ++BBI;
 
   Case& FrontCase = *CR.Range.first;
   Case& BackCase  = *(CR.Range.second-1);
@@ -2813,11 +2812,10 @@ void SelectionDAGLowering::visitLoad(LoadInst &I) {
   EVT PtrVT = Ptr.getValueType();
   for (unsigned i = 0; i != NumValues; ++i) {
     SDValue L = DAG.getLoad(ValueVTs[i], getCurDebugLoc(), Root,
-                              DAG.getNode(ISD::ADD, getCurDebugLoc(),
-                                          PtrVT, Ptr,
-                                          DAG.getConstant(Offsets[i], PtrVT)),
-                              SV, Offsets[i],
-                              isVolatile, Alignment);
+                            DAG.getNode(ISD::ADD, getCurDebugLoc(),
+                                        PtrVT, Ptr,
+                                        DAG.getConstant(Offsets[i], PtrVT)),
+                            SV, Offsets[i], isVolatile, Alignment);
     Values[i] = L;
     Chains[i] = L.getValue(1);
   }
@@ -2866,8 +2864,7 @@ void SelectionDAGLowering::visitStore(StoreInst &I) {
                              DAG.getNode(ISD::ADD, getCurDebugLoc(),
                                          PtrVT, Ptr,
                                          DAG.getConstant(Offsets[i], PtrVT)),
-                             PtrV, Offsets[i],
-                             isVolatile, Alignment);
+                             PtrV, Offsets[i], isVolatile, Alignment);
 
   DAG.setRoot(DAG.getNode(ISD::TokenFactor, getCurDebugLoc(),
                           MVT::Other, &Chains[0], NumValues));
@@ -3876,7 +3873,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
     if (isValidDebugInfoIntrinsic(RSI, OptLevel) && DW
         && DW->ShouldEmitDwarfDebug()) {
       unsigned LabelID =
-        DW->RecordRegionStart(cast<GlobalVariable>(RSI.getContext()));
+        DW->RecordRegionStart(RSI.getContext());
       DAG.setRoot(DAG.getLabel(ISD::DBG_LABEL, getCurDebugLoc(),
                                getRoot(), LabelID));
     }
@@ -3891,7 +3888,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
       return 0;
 
     MachineFunction &MF = DAG.getMachineFunction();
-    DISubprogram Subprogram(cast<GlobalVariable>(REI.getContext()));
+    DISubprogram Subprogram(REI.getContext());
     
     if (isInlinedFnEnd(REI, MF.getFunction())) {
       // This is end of inlined function. Debugging information for inlined
@@ -3910,7 +3907,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
     } 
 
     unsigned LabelID =
-      DW->RecordRegionEnd(cast<GlobalVariable>(REI.getContext()));
+      DW->RecordRegionEnd(REI.getContext());
     DAG.setRoot(DAG.getLabel(ISD::DBG_LABEL, getCurDebugLoc(),
                              getRoot(), LabelID));
     return 0;
@@ -3942,7 +3939,7 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
       if (!DW || !DW->ShouldEmitDwarfDebug())
         return 0;
       DebugLocTuple PrevLocTpl = MF.getDebugLocTuple(PrevLoc);
-      DISubprogram SP(cast<GlobalVariable>(FSI.getSubprogram()));
+      DISubprogram SP(FSI.getSubprogram());
       DICompileUnit CU(PrevLocTpl.CompileUnit);
       unsigned LabelID = DW->RecordInlinedFnStart(SP, CU,
                                                   PrevLocTpl.Line,
@@ -3958,21 +3955,34 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
     if (!DW || !DW->ShouldEmitDwarfDebug())
       return 0;
     // llvm.dbg.func_start also defines beginning of function scope.
-    DW->RecordRegionStart(cast<GlobalVariable>(FSI.getSubprogram()));
+    DW->RecordRegionStart(FSI.getSubprogram());
     return 0;
   }
   case Intrinsic::dbg_declare: {
     if (OptLevel != CodeGenOpt::None) 
       // FIXME: Variable debug info is not supported here.
       return 0;
-
+    DwarfWriter *DW = DAG.getDwarfWriter();
+    if (!DW)
+      return 0;
     DbgDeclareInst &DI = cast<DbgDeclareInst>(I);
     if (!isValidDebugInfoIntrinsic(DI, CodeGenOpt::None))
       return 0;
 
     Value *Variable = DI.getVariable();
-    DAG.setRoot(DAG.getNode(ISD::DECLARE, dl, MVT::Other, getRoot(),
-                            getValue(DI.getAddress()), getValue(Variable)));
+    Value *Address = DI.getAddress();
+    if (BitCastInst *BCI = dyn_cast<BitCastInst>(Address))
+      Address = BCI->getOperand(0);
+    AllocaInst *AI = dyn_cast<AllocaInst>(Address);
+    // Don't handle byval struct arguments or VLAs, for example.
+    if (!AI)
+      return 0;
+    DenseMap<const AllocaInst*, int>::iterator SI =
+      FuncInfo.StaticAllocaMap.find(AI);
+    if (SI == FuncInfo.StaticAllocaMap.end()) 
+      return 0; // VLAs.
+    int FI = SI->second;
+    DW->RecordVariable(cast<MDNode>(Variable), FI);
     return 0;
   }
   case Intrinsic::eh_exception: {
@@ -5604,7 +5614,7 @@ std::pair<SDValue, SDValue>
 TargetLowering::LowerCallTo(SDValue Chain, const Type *RetTy,
                             bool RetSExt, bool RetZExt, bool isVarArg,
                             bool isInreg, unsigned NumFixedArgs,
-                            unsigned CallConv, bool isTailCall,
+                            CallingConv::ID CallConv, bool isTailCall,
                             bool isReturnValueUsed,
                             SDValue Callee,
                             ArgListTy &Args, SelectionDAG &DAG, DebugLoc dl) {