Temporarily revert r104655 as it's breaking the bots.

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

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index fe52040d45cdce37e087a9fff5b8e6c17890b7da..b306ff6e578da1018ab5c2a0c2af7fc8d88ab4a9 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -545,8 +545,6 @@ void SelectionDAGBuilder::clear() {
   NodeMap.clear();
   PendingLoads.clear();
   PendingExports.clear();
-  EdgeMapping.clear();
-  DAG.clear();
   CurDebugLoc = DebugLoc();
   HasTailCall = false;
 }
@@ -3687,11 +3685,17 @@ static SDValue ExpandPowI(DebugLoc DL, SDValue LHS, SDValue RHS,
 bool
 SelectionDAGBuilder::EmitFuncArgumentDbgValue(const DbgValueInst &DI,
                                               const Value *V, MDNode *Variable,
-                                              uint64_t Offset, SDValue &N) {
+                                              uint64_t Offset,
+                                              const SDValue &N) {
   if (!isa<Argument>(V))
     return false;
 
   MachineFunction &MF = DAG.getMachineFunction();
+  // Ignore inlined function arguments here.
+  DIVariable DV(Variable);
+  if (DV.isInlinedFnArgument(MF.getFunction()))
+    return false;
+
   MachineBasicBlock *MBB = FuncInfo.MBBMap[DI.getParent()];
   if (MBB != &MF.front())
     return false;
@@ -3707,19 +3711,27 @@ SelectionDAGBuilder::EmitFuncArgumentDbgValue(const DbgValueInst &DI,
     }
   }
 
-  if (!Reg)
-    Reg = FuncInfo.ValueMap[V];
-  if (!Reg)
-    return false;
+  if (!Reg) {
+    DenseMap<const Value *, unsigned>::iterator VMI = FuncInfo.ValueMap.find(V);
+    if (VMI == FuncInfo.ValueMap.end())
+      return false;
+    Reg = VMI->second;
+  }
 
   const TargetInstrInfo *TII = DAG.getTarget().getInstrInfo();
   MachineInstrBuilder MIB = BuildMI(MF, getCurDebugLoc(),
                                     TII->get(TargetOpcode::DBG_VALUE))
-    .addReg(Reg).addImm(Offset).addMetadata(Variable);
+    .addReg(Reg, RegState::Debug).addImm(Offset).addMetadata(Variable);
   FuncInfo.ArgDbgValues.push_back(&*MIB);
   return true;
 }
 
+// VisualStudio defines setjmp as _setjmp
+#if defined(_MSC_VER) && defined(setjmp)
+#define setjmp_undefined_for_visual_studio
+#undef setjmp
+#endif
+
 /// visitIntrinsicCall - Lower the call to the specified intrinsic function.  If
 /// we want to emit this as a call to a named external function, return the name
 /// otherwise lower it and return null.
@@ -3812,7 +3824,7 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
   }
   case Intrinsic::dbg_declare: {
     const DbgDeclareInst &DI = cast<DbgDeclareInst>(I);
-    if (!DIDescriptor::ValidDebugInfo(DI.getVariable(), CodeGenOpt::None))
+    if (!DIVariable(DI.getVariable()).Verify())
       return 0;
 
     MDNode *Variable = DI.getVariable();
@@ -3875,7 +3887,7 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
   }
   case Intrinsic::dbg_value: {
     const DbgValueInst &DI = cast<DbgValueInst>(I);
-    if (!DIDescriptor::ValidDebugInfo(DI.getVariable(), CodeGenOpt::None))
+    if (!DIVariable(DI.getVariable()).Verify())
       return 0;
 
     MDNode *Variable = DI.getVariable();
@@ -3894,18 +3906,28 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
       SDV = DAG.getDbgValue(Variable, V, Offset, dl, SDNodeOrder);
       DAG.AddDbgValue(SDV, 0, false);
     } else {
+      bool createUndef = false;
+      // FIXME : Why not use getValue() directly ?
       SDValue &N = NodeMap[V];
       if (N.getNode()) {
-#if 0
         if (!EmitFuncArgumentDbgValue(DI, V, Variable, Offset, N)) {
-#endif
           SDV = DAG.getDbgValue(Variable, N.getNode(),
                                 N.getResNo(), Offset, dl, SDNodeOrder);
           DAG.AddDbgValue(SDV, N.getNode(), false);
-#if 0
         }
-#endif
-      } else {
+      } else if (isa<PHINode>(V) && !V->use_empty()) {
+        SDValue N = getValue(V);
+        if (N.getNode()) {
+          if (!EmitFuncArgumentDbgValue(DI, V, Variable, Offset, N)) {
+            SDV = DAG.getDbgValue(Variable, N.getNode(),
+                                  N.getResNo(), Offset, dl, SDNodeOrder);
+            DAG.AddDbgValue(SDV, N.getNode(), false);
+          }
+        } else
+          createUndef = true;
+      } else
+        createUndef = true;
+      if (createUndef) {
         // We may expand this to cover more cases.  One case where we have no
         // data available is an unreferenced parameter; we need this fallback.
         SDV = DAG.getDbgValue(Variable, UndefValue::get(V->getType()),
@@ -4016,6 +4038,11 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
     MMI.setCurrentCallSite(CI->getZExtValue());
     return 0;
   }
+  case Intrinsic::eh_sjlj_longjmp: {
+    DAG.setRoot(DAG.getNode(ISD::EH_SJLJ_LONGJMP, dl, MVT::Other, getRoot(),
+                            getValue(I.getOperand(1))));
+    return 0;
+  }
 
   case Intrinsic::convertff:
   case Intrinsic::convertfsi:
@@ -4922,7 +4949,7 @@ isAllocatableRegister(unsigned Reg, MachineFunction &MF,
 namespace llvm {
 /// AsmOperandInfo - This contains information for each constraint that we are
 /// lowering.
-class VISIBILITY_HIDDEN SDISelAsmOperandInfo :
+class LLVM_LIBRARY_VISIBILITY SDISelAsmOperandInfo :
     public TargetLowering::AsmOperandInfo {
 public:
   /// CallOperand - If this is the result output operand or a clobber