public void EmitAll(Clarity.Rpa.HighFileBuilder builder, BinaryWriter writer) { // Generate locals and args Dictionary<VReg, Clarity.Rpa.HighLocal> localLookup = new Dictionary<VReg, Clarity.Rpa.HighLocal>(); List<Clarity.Rpa.HighLocal> highArgs = new List<Clarity.Rpa.HighLocal>(); List<Clarity.Rpa.HighLocal> highLocals = new List<Clarity.Rpa.HighLocal>(); VRegsToHighLocals(m_args, highArgs, localLookup); VRegsToHighLocals(m_locals, highLocals, localLookup); VRegsToHighLocals(m_temporaries, highLocals, localLookup); Clarity.Rpa.HighLocal instanceLocal; if (m_method.Static) instanceLocal = null; else { instanceLocal = highArgs[0]; highArgs.RemoveAt(0); } CppRegionEmitter emitter = new CppRegionEmitter(m_builder, m_mainRegion, m_regAllocator, localLookup); Clarity.Rpa.HighRegion mainRegion = emitter.Emit(); Clarity.Pdb.PdbDebugInfo debugInfo = null; m_builder.AssemblyPdbs.TryGetValue(m_method.MethodDef.Table.MetaData.Assembly, out debugInfo); Clarity.Pdb.PdbDebugFunction debugFunction = null; if (debugInfo != null) debugFunction = debugInfo.GetFunction(m_method.MethodDef.MetadataToken); Clarity.Rpa.HighMethodBody methodBody = new Clarity.Rpa.HighMethodBody(mainRegion, instanceLocal, highArgs.ToArray(), highLocals.ToArray(), debugFunction != null); methodBody.Write(builder, writer); }
private void EmitCfgNode(CfgNode cfgNode) { // Build predecessor list List<CppTranslatedOutboundEdge> predecessorEdges = new List<CppTranslatedOutboundEdge>(); foreach (CfgNode pred in cfgNode.Predecessors) { // Find the successor edge CppTranslatedOutboundEdge edge = null; foreach (CfgOutboundEdge outEdge in pred.Successors) { if (outEdge.SuccessorNode == cfgNode) { edge = InternOutboundEdge(pred, outEdge); break; } } if (edge == null) throw new Exception("Mismatched CFG edge"); predecessorEdges.Add(edge); } List<Clarity.Rpa.HighInstruction> outInstructions = new List<Clarity.Rpa.HighInstruction>(); List<Clarity.Rpa.HighPhi> outPhis = new List<Clarity.Rpa.HighPhi>(); Clarity.Rpa.HighCfgNodeHandle highNode = m_nodesToEmittedNodes[cfgNode]; CppCfgNodeOutline outline = m_nodeOutlines[cfgNode]; List<SsaRegister> leakedRegs = new List<SsaRegister>(); int numContinuedRegs = 0; int debugInstrNum = -1; MidInstruction[] midInstrs = cfgNode.MidInstructions; bool fallthroughMerged = false; foreach (MidInstruction midInstr in midInstrs) { debugInstrNum++; switch (midInstr.Opcode) { case MidInstruction.OpcodeEnum.AllocObject: { Clarity.Rpa.HighSsaRegister dest = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.TypeSpecTag type = RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg); outInstructions.Add(new Clarity.Rpa.Instructions.AllocObjInstruction(midInstr.CodeLocation, dest, type)); } break; case MidInstruction.OpcodeEnum.CallMethod: case MidInstruction.OpcodeEnum.CallConstructor: case MidInstruction.OpcodeEnum.ConstrainedCallMethod: { CppMethodSpec methodSpec = midInstr.MethodSpecArg; CppMethod cppMethod = methodSpec.CppMethod; CppClass thisClass = m_builder.GetCachedClass(cppMethod.DeclaredInClassSpec); SsaRegister returnReg = midInstr.RegArg; SsaRegister thisReg = midInstr.RegArg2; List<Clarity.Rpa.HighSsaRegister> parameters = new List<Clarity.Rpa.HighSsaRegister>(); if (!cppMethod.MethodDef.Static && midInstr.Opcode != MidInstruction.OpcodeEnum.ConstrainedCallMethod) thisReg = EmitPassiveConversion_PermitRefs(midInstr.CodeLocation, thisReg, cppMethod.DeclaredInClassSpec, outline, outInstructions); // CLARITYTODO: Verify that this works with generic method parameters for (int pIdx = 0; pIdx < midInstr.RegArgs.Length; pIdx++) { SsaRegister inReg = EmitPassiveConversion_PermitRefs(midInstr.CodeLocation, midInstr.RegArgs[pIdx], cppMethod.MethodSignature.ParamTypes[pIdx].Type, outline, outInstructions); parameters.Add(InternSsaRegister(inReg)); } Clarity.Rpa.HighSsaRegister outDestReg = null; if (returnReg != null) outDestReg = InternSsaRegister(returnReg); Clarity.Rpa.TypeSpecTag constraintTag = null; if (midInstr.Opcode == MidInstruction.OpcodeEnum.ConstrainedCallMethod) constraintTag = RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg); Clarity.Rpa.HighSsaRegister instanceReg = null; if (!cppMethod.MethodDef.Static) instanceReg = InternSsaRegister(thisReg); CLR.CLRMethodSignatureInstance methodSig = cppMethod.MethodSignature; int numParams = parameters.Count; if (numParams != methodSig.ParamTypes.Length) throw new Exception("Internal error: CallMethod param count mismatch"); if (midInstr.Opcode == MidInstruction.OpcodeEnum.CallMethod || midInstr.Opcode == MidInstruction.OpcodeEnum.CallConstructor) { if (cppMethod.MethodDef.Static) { outInstructions.Add(new Clarity.Rpa.Instructions.CallStaticMethodInstruction( midInstr.CodeLocation, outDestReg, RpaTagFactory.CreateMethodSpec(Clarity.Rpa.MethodSlotType.Static, methodSpec), parameters.ToArray() )); } else { outInstructions.Add(new Clarity.Rpa.Instructions.CallInstanceMethodInstruction( midInstr.CodeLocation, outDestReg, RpaTagFactory.CreateMethodSpec(Clarity.Rpa.MethodSlotType.Instance, methodSpec), instanceReg, parameters.ToArray() )); } } else if (midInstr.Opcode == MidInstruction.OpcodeEnum.ConstrainedCallMethod) { outInstructions.Add(new Clarity.Rpa.Instructions.CallConstrainedMethodInstruction( midInstr.CodeLocation, outDestReg, constraintTag, RpaTagFactory.CreateMethodSpec(Clarity.Rpa.MethodSlotType.Instance, methodSpec), instanceReg, parameters.ToArray() )); } } break; case MidInstruction.OpcodeEnum.CallVirtualMethod: case MidInstruction.OpcodeEnum.ConstrainedCallVirtualMethod: { CppMethodSpec methodSpec = midInstr.MethodSpecArg; CppMethod cppMethod = methodSpec.CppMethod; CppClass thisClass = m_builder.GetCachedClass(cppMethod.DeclaredInClassSpec); Clarity.Rpa.HighSsaRegister returnReg = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister thisReg = null; List<Clarity.Rpa.HighSsaRegister> paramRegs = new List<Clarity.Rpa.HighSsaRegister>(); if (midInstr.Opcode != MidInstruction.OpcodeEnum.ConstrainedCallVirtualMethod) thisReg = InternSsaRegister(EmitPassiveConversion_PermitRefs(midInstr.CodeLocation, midInstr.RegArg2, cppMethod.DeclaredInClassSpec, outline, outInstructions)); else thisReg = InternSsaRegister(midInstr.RegArg2); for (int pIdx = 0; pIdx < midInstr.RegArgs.Length; pIdx++) paramRegs.Add(InternSsaRegister(EmitPassiveConversion_PermitRefs(midInstr.CodeLocation, midInstr.RegArgs[pIdx], cppMethod.MethodSignature.ParamTypes[pIdx].Type, outline, outInstructions))); CppVtableSlot vtableSlot = cppMethod.CreatesSlot; if (vtableSlot == null) vtableSlot = cppMethod.ReplacesStandardSlot; if (vtableSlot == null) throw new Exception("Internal error: Couldn't resolve vtable slot for method"); Clarity.Rpa.TypeSpecTag constraintType = null; if (midInstr.Opcode == MidInstruction.OpcodeEnum.ConstrainedCallVirtualMethod) constraintType = RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg); if (cppMethod.MethodDef.Static) throw new Exception(); CLR.CLRMethodSignatureInstance methodSig = cppMethod.MethodSignature; int numParams = paramRegs.Count; if (numParams != methodSig.ParamTypes.Length) throw new Exception("Internal error: CallMethod param count mismatch"); if (midInstr.Opcode == MidInstruction.OpcodeEnum.CallVirtualMethod) { outInstructions.Add(new Clarity.Rpa.Instructions.CallVirtualMethodInstruction( midInstr.CodeLocation, returnReg, RpaTagFactory.CreateMethodSpec(Clarity.Rpa.MethodSlotType.Virtual, methodSpec), thisReg, paramRegs.ToArray() )); } else if (midInstr.Opcode == MidInstruction.OpcodeEnum.ConstrainedCallVirtualMethod) outInstructions.Add(new Clarity.Rpa.Instructions.CallConstrainedVirtualMethodInstruction( midInstr.CodeLocation, returnReg, constraintType, RpaTagFactory.CreateMethodSpec(Clarity.Rpa.MethodSlotType.Virtual, methodSpec), thisReg, paramRegs.ToArray() )); } break; case MidInstruction.OpcodeEnum.KillReg: break; case MidInstruction.OpcodeEnum.LivenReg: { SsaRegister reg = midInstr.RegArg; reg.GenerateUniqueID(m_regAllocator); reg.MakeUsable(); } break; case MidInstruction.OpcodeEnum.Return: outInstructions.Add(new Clarity.Rpa.Instructions.ReturnInstruction(midInstr.CodeLocation)); break; case MidInstruction.OpcodeEnum.ReturnValue: { SsaRegister returnRegister = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.TypeSpecArg, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.ReturnValueInstruction( midInstr.CodeLocation, InternSsaRegister(returnRegister))); } break; case MidInstruction.OpcodeEnum.LoadReg_ManagedPtr: { Clarity.Rpa.HighLocal lcl = m_localLookup[midInstr.VRegArg]; Clarity.Rpa.HighSsaRegister dest = InternSsaRegister(midInstr.RegArg); outInstructions.Add(new Clarity.Rpa.Instructions.LoadLocalInstruction( midInstr.CodeLocation, dest, lcl )); } break; case MidInstruction.OpcodeEnum.LoadReg_Value: { CLR.CLRTypeSpec srcSpec = midInstr.VRegArg.VType.TypeSpec; CLR.CLRTypeSpec destSpec = midInstr.RegArg.VType.TypeSpec; if (srcSpec.Equals(destSpec)) { outInstructions.Add(new Clarity.Rpa.Instructions.LoadLocalInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), m_localLookup[midInstr.VRegArg] )); } else { SsaRegister tempReg = new SsaRegister(midInstr.VRegArg.VType); tempReg.MakeUsable(); tempReg.GenerateUniqueID(m_regAllocator); outline.AddRegister(tempReg); outInstructions.Add(new Clarity.Rpa.Instructions.LoadLocalInstruction( midInstr.CodeLocation, InternSsaRegister(tempReg), m_localLookup[midInstr.VRegArg] )); outInstructions.Add(new Clarity.Rpa.Instructions.PassiveConvertInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), InternSsaRegister(tempReg) )); } } break; case MidInstruction.OpcodeEnum.StoreReg_ManagedPtr: outInstructions.Add(new Clarity.Rpa.Instructions.StoreLocalInstruction( midInstr.CodeLocation, m_localLookup[midInstr.VRegArg], InternSsaRegister(midInstr.RegArg) )); break; case MidInstruction.OpcodeEnum.StoreReg_Value: { SsaRegister srcReg = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.VRegArg.VType.TypeSpec, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.StoreLocalInstruction( midInstr.CodeLocation, m_localLookup[midInstr.VRegArg], InternSsaRegister(srcReg) )); } break; case MidInstruction.OpcodeEnum.beq_ref: case MidInstruction.OpcodeEnum.bne_ref: { fallthroughMerged = true; CppTranslatedOutboundEdge edgeA = InternOutboundEdge(cfgNode, midInstr.CfgEdgeArg); CppTranslatedOutboundEdge edgeB = InternOutboundEdge(cfgNode, cfgNode.FallThroughEdge); CppTranslatedOutboundEdge trueEdge, falseEdge; if (midInstr.Opcode == MidInstruction.OpcodeEnum.beq_ref) { trueEdge = edgeA; falseEdge = edgeB; } else if (midInstr.Opcode == MidInstruction.OpcodeEnum.bne_ref) { trueEdge = edgeB; falseEdge = edgeA; } else throw new Exception(); Clarity.Rpa.HighSsaRegister regA = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister regB = InternSsaRegister(midInstr.RegArg2); outInstructions.Add(new Clarity.Rpa.Instructions.BranchCompareRefsInstruction(midInstr.CodeLocation, regA, regB, trueEdge.NextNode, falseEdge.NextNode)); } break; case MidInstruction.OpcodeEnum.cne_ref: case MidInstruction.OpcodeEnum.ceq_ref: { int trueValue, falseValue; Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg); if (midInstr.Opcode == MidInstruction.OpcodeEnum.ceq_ref) { trueValue = 1; falseValue = 0; } else if (midInstr.Opcode == MidInstruction.OpcodeEnum.cne_ref) { trueValue = 0; falseValue = 1; } else throw new Exception(); Clarity.Rpa.HighSsaRegister regA = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.HighSsaRegister regB = InternSsaRegister(midInstr.RegArg3); outInstructions.Add(new Clarity.Rpa.Instructions.CompareRefsInstruction(midInstr.CodeLocation, destReg, regA, regB, trueValue, falseValue)); } break; case MidInstruction.OpcodeEnum.beq_val: case MidInstruction.OpcodeEnum.bne_val: case MidInstruction.OpcodeEnum.bge: case MidInstruction.OpcodeEnum.bgt: case MidInstruction.OpcodeEnum.ble: case MidInstruction.OpcodeEnum.blt: case MidInstruction.OpcodeEnum.clt: case MidInstruction.OpcodeEnum.cgt: case MidInstruction.OpcodeEnum.ceq_numeric: { bool isBranch; SsaRegister leftReg, rightReg; switch (midInstr.Opcode) { case MidInstruction.OpcodeEnum.beq_val: case MidInstruction.OpcodeEnum.bne_val: case MidInstruction.OpcodeEnum.bge: case MidInstruction.OpcodeEnum.bgt: case MidInstruction.OpcodeEnum.ble: case MidInstruction.OpcodeEnum.blt: isBranch = true; leftReg = midInstr.RegArg; rightReg = midInstr.RegArg2; break; case MidInstruction.OpcodeEnum.clt: case MidInstruction.OpcodeEnum.cgt: case MidInstruction.OpcodeEnum.ceq_numeric: isBranch = false; leftReg = midInstr.RegArg2; rightReg = midInstr.RegArg3; break; default: throw new Exception(); } bool isUnsigned = midInstr.FlagArg; bool isReversed = false; NumericStackType nst = NumericStackTypeForNumericBinaryOp(leftReg, rightReg); if (isUnsigned && (nst == NumericStackType.Float32 || nst == NumericStackType.Float64)) { isUnsigned = false; isReversed = true; } CLR.CLRTypeSpec comparisonSpec = this.TypeSpecForNumericBinaryOp(leftReg, rightReg, isUnsigned); Clarity.Rpa.HighSsaRegister leftHighReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, leftReg, comparisonSpec, outline, outInstructions)); Clarity.Rpa.HighSsaRegister rightHighReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, rightReg, comparisonSpec, outline, outInstructions)); Clarity.Rpa.Instructions.NumberCompareOperation op; switch (midInstr.Opcode) { case MidInstruction.OpcodeEnum.blt: case MidInstruction.OpcodeEnum.clt: op = isReversed ? Clarity.Rpa.Instructions.NumberCompareOperation.GreaterOrEqual : Clarity.Rpa.Instructions.NumberCompareOperation.LessThan; break; case MidInstruction.OpcodeEnum.bgt: case MidInstruction.OpcodeEnum.cgt: op = isReversed ? Clarity.Rpa.Instructions.NumberCompareOperation.LessOrEqual : Clarity.Rpa.Instructions.NumberCompareOperation.GreaterThan; break; case MidInstruction.OpcodeEnum.ble: op = isReversed ? Clarity.Rpa.Instructions.NumberCompareOperation.GreaterThan : Clarity.Rpa.Instructions.NumberCompareOperation.LessOrEqual; break; case MidInstruction.OpcodeEnum.bge: op = isReversed ? Clarity.Rpa.Instructions.NumberCompareOperation.LessThan : Clarity.Rpa.Instructions.NumberCompareOperation.GreaterOrEqual; break; case MidInstruction.OpcodeEnum.beq_val: case MidInstruction.OpcodeEnum.ceq_numeric: op = isReversed ? Clarity.Rpa.Instructions.NumberCompareOperation.NotEqual : Clarity.Rpa.Instructions.NumberCompareOperation.Equal; break; case MidInstruction.OpcodeEnum.bne_val: op = isReversed ? Clarity.Rpa.Instructions.NumberCompareOperation.Equal : Clarity.Rpa.Instructions.NumberCompareOperation.NotEqual; break; default: throw new ArgumentException(); } Clarity.Rpa.Instructions.NumberArithType numType; switch (nst) { case NumericStackType.Float32: numType = Clarity.Rpa.Instructions.NumberArithType.Float32; break; case NumericStackType.Float64: numType = Clarity.Rpa.Instructions.NumberArithType.Float64; break; case NumericStackType.Int32: numType = isUnsigned ? Clarity.Rpa.Instructions.NumberArithType.UInt32 : Clarity.Rpa.Instructions.NumberArithType.Int32; break; case NumericStackType.Int64: numType = isUnsigned ? Clarity.Rpa.Instructions.NumberArithType.UInt64 : Clarity.Rpa.Instructions.NumberArithType.Int64; break; case NumericStackType.NativeInt: numType = isUnsigned ? Clarity.Rpa.Instructions.NumberArithType.NativeUInt : Clarity.Rpa.Instructions.NumberArithType.NativeInt; break; default: throw new ArgumentException(); } if (isBranch) { fallthroughMerged = true; CppTranslatedOutboundEdge trueEdge = InternOutboundEdge(cfgNode, midInstr.CfgEdgeArg); CppTranslatedOutboundEdge falseEdge = InternOutboundEdge(cfgNode, cfgNode.FallThroughEdge); if (isReversed) { CppTranslatedOutboundEdge temp = trueEdge; trueEdge = falseEdge; falseEdge = temp; } outInstructions.Add(new Clarity.Rpa.Instructions.BranchCompareNumbersInstruction( midInstr.CodeLocation, op, numType, leftHighReg, rightHighReg, trueEdge.NextNode, falseEdge.NextNode )); } else { int trueValue = 0; int falseValue = 1; if (isReversed) { trueValue = 0; falseValue = 1; } Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg); outInstructions.Add(new Clarity.Rpa.Instructions.CompareNumbersInstruction( midInstr.CodeLocation, destReg, op, numType, leftHighReg, rightHighReg, trueValue, falseValue )); } } break; case MidInstruction.OpcodeEnum.LoadArgA_Value: { Clarity.Rpa.HighSsaRegister dest = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighLocal src = m_localLookup[midInstr.VRegArg]; outInstructions.Add(new Clarity.Rpa.Instructions.GetLocalPtrInstruction( midInstr.CodeLocation, dest, src )); } break; case MidInstruction.OpcodeEnum.brzero: case MidInstruction.OpcodeEnum.brnotzero: { SsaRegister inReg = midInstr.RegArg; CLR.CLRTypeSpec targetType; object zeroValue; CLR.CLRTypeSpecClass cls = (CLR.CLRTypeSpecClass)inReg.VType.TypeSpec; string typeName = cls.TypeDef.TypeName; Clarity.Rpa.Instructions.NumberArithType arithType; if (typeName == "Char" || typeName == "Boolean" || typeName == "Byte" || typeName == "UInt16" || typeName == "UInt32") { targetType = TypeSpecForNumericStackType(NumericStackType.Int32, true); zeroValue = (uint)0; arithType = Clarity.Rpa.Instructions.NumberArithType.UInt32; } else if (typeName == "SByte" || typeName == "Int16" || typeName == "Int32") { targetType = TypeSpecForNumericStackType(NumericStackType.Int32, false); zeroValue = (int)0; arithType = Clarity.Rpa.Instructions.NumberArithType.Int32; } else if (typeName == "UInt64") { targetType = TypeSpecForNumericStackType(NumericStackType.Int64, true); zeroValue = (ulong)0; arithType = Clarity.Rpa.Instructions.NumberArithType.UInt64; } else if (typeName == "Int64") { targetType = TypeSpecForNumericStackType(NumericStackType.Int64, false); zeroValue = (long)0; arithType = Clarity.Rpa.Instructions.NumberArithType.Int64; } else if (typeName == "IntPtr") { targetType = TypeSpecForNumericStackType(NumericStackType.NativeInt, false); zeroValue = (long)0; arithType = Clarity.Rpa.Instructions.NumberArithType.NativeInt; } else if (typeName == "UIntPtr") { targetType = TypeSpecForNumericStackType(NumericStackType.NativeInt, true); zeroValue = (ulong)0; arithType = Clarity.Rpa.Instructions.NumberArithType.NativeUInt; } else if (typeName == "Single") { targetType = TypeSpecForNumericStackType(NumericStackType.Float32, false); zeroValue = (float)0; arithType = Clarity.Rpa.Instructions.NumberArithType.Float32; } else if (typeName == "Double") { targetType = TypeSpecForNumericStackType(NumericStackType.Float64, false); zeroValue = (double)0; arithType = Clarity.Rpa.Instructions.NumberArithType.Float64; } else throw new Exception(); fallthroughMerged = true; CppTranslatedOutboundEdge trueEdge = InternOutboundEdge(cfgNode, midInstr.CfgEdgeArg); CppTranslatedOutboundEdge falseEdge = InternOutboundEdge(cfgNode, cfgNode.FallThroughEdge); Clarity.Rpa.Instructions.NumberCompareOperation compareOp; if (midInstr.Opcode == MidInstruction.OpcodeEnum.brzero) compareOp = Clarity.Rpa.Instructions.NumberCompareOperation.Equal; else if (midInstr.Opcode == MidInstruction.OpcodeEnum.brnotzero) compareOp = Clarity.Rpa.Instructions.NumberCompareOperation.NotEqual; else throw new Exception(); SsaRegister converted = EmitPassiveConversion(midInstr.CodeLocation, inReg, targetType, outline, outInstructions); Clarity.Rpa.TypeSpecTag typeTag = RpaTagFactory.CreateTypeTag(targetType); outInstructions.Add(new Clarity.Rpa.Instructions.BranchCompareNumbersInstruction( midInstr.CodeLocation, compareOp, arithType, InternSsaRegister(converted), new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ConstantValue, typeTag, zeroValue), trueEdge.NextNode, falseEdge.NextNode )); } break; case MidInstruction.OpcodeEnum.brnull: case MidInstruction.OpcodeEnum.brnotnull: { fallthroughMerged = true; CppTranslatedOutboundEdge isNullEdge = InternOutboundEdge(cfgNode, midInstr.CfgEdgeArg); CppTranslatedOutboundEdge isNotNullEdge = InternOutboundEdge(cfgNode, cfgNode.FallThroughEdge); if (midInstr.Opcode == MidInstruction.OpcodeEnum.brnotnull) { CppTranslatedOutboundEdge temp = isNullEdge; isNullEdge = isNotNullEdge; isNotNullEdge = temp; } outInstructions.Add(new Clarity.Rpa.Instructions.BranchRefNullInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), isNullEdge.NextNode, isNotNullEdge.NextNode )); } break; case MidInstruction.OpcodeEnum.LeakReg: { leakedRegs.Add(midInstr.RegArg); } break; case MidInstruction.OpcodeEnum.EntryReg: { SsaRegister reg = midInstr.RegArg; reg.GenerateUniqueID(m_regAllocator); reg.MakeUsable(); Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(reg); // Blocks can have constants on entry if all predecessors have the same value if (!destReg.IsConstant) { List<Clarity.Rpa.HighPhiLink> phiLinks = new List<Clarity.Rpa.HighPhiLink>(); foreach (CppTranslatedOutboundEdge predEdge in predecessorEdges) phiLinks.Add(new Clarity.Rpa.HighPhiLink(predEdge.PrevNode, predEdge.Regs[numContinuedRegs])); outPhis.Add(new Clarity.Rpa.HighPhi( InternSsaRegister(reg), phiLinks.ToArray() )); } numContinuedRegs++; } break; case MidInstruction.OpcodeEnum.Throw: { CLR.CLRTypeSpec objSpec = m_builder.Assemblies.InternVagueType(new CLR.CLRSigTypeSimple(CLR.CLRSigType.ElementType.OBJECT)); SsaRegister converted = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, objSpec, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.ThrowInstruction( midInstr.CodeLocation, InternSsaRegister(converted) )); } break; case MidInstruction.OpcodeEnum.NewSZArray: { NumericStackType indexNst = StackTypeForTypeSpec(midInstr.RegArg2.VType.TypeSpec); CLR.CLRTypeSpec indexSpec = m_builder.Assemblies.InternVagueType(new CLR.CLRSigTypeSimple(CLR.CLRSigType.ElementType.I)); SsaRegister indexReg = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg2, indexSpec, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.AllocArrayInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), new Clarity.Rpa.HighSsaRegister[] { InternSsaRegister(indexReg) }, RpaTagFactory.CreateTypeTag(midInstr.RegArg2.VType.TypeSpec) )); } break; case MidInstruction.OpcodeEnum.LoadField_ManagedPtr: { Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, destReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.PtrFieldInstruction( midInstr.CodeLocation, addrReg, objReg, midInstr.StrArg )); outInstructions.Add(new Clarity.Rpa.Instructions.LoadPtrInstruction( midInstr.CodeLocation, destReg, addrReg )); } break; case MidInstruction.OpcodeEnum.LoadFieldA_ManagedPtr: { Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(midInstr.RegArg); outInstructions.Add(new Clarity.Rpa.Instructions.PtrFieldInstruction( midInstr.CodeLocation, destReg, objReg, midInstr.StrArg )); } break; case MidInstruction.OpcodeEnum.LoadField_Object: { Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.TypeSpecArg, outline, outInstructions)); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, destReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.RefFieldInstruction( midInstr.CodeLocation, addrReg, objReg, midInstr.StrArg, RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg) )); outInstructions.Add(new Clarity.Rpa.Instructions.LoadPtrInstruction( midInstr.CodeLocation, destReg, addrReg )); } break; case MidInstruction.OpcodeEnum.LoadFieldA_Object: { Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.TypeSpecArg, outline, outInstructions)); outInstructions.Add(new Clarity.Rpa.Instructions.RefFieldInstruction( midInstr.CodeLocation, destReg, objReg, midInstr.StrArg, RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg) )); } break; case MidInstruction.OpcodeEnum.LoadField_Value: { Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(midInstr.RegArg); outInstructions.Add(new Clarity.Rpa.Instructions.LoadValueFieldInstruction( midInstr.CodeLocation, destReg, objReg, midInstr.StrArg )); } break; case MidInstruction.OpcodeEnum.LoadRegA: { Clarity.Rpa.HighLocal local = m_localLookup[midInstr.VRegArg]; Clarity.Rpa.HighSsaRegister dest = InternSsaRegister(midInstr.RegArg); outInstructions.Add(new Clarity.Rpa.Instructions.GetLocalPtrInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), m_localLookup[midInstr.VRegArg] )); } break; case MidInstruction.OpcodeEnum.LoadArrayElem: { CLR.CLRTypeSpec indexSpec = m_builder.Assemblies.InternVagueType(new CLR.CLRSigTypeSimple(CLR.CLRSigType.ElementType.I)); Clarity.Rpa.HighSsaRegister arrayReg = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister indexReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg2, indexSpec, outline, outInstructions)); Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg3); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, destReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.GetArrayElementPtrInstruction( midInstr.CodeLocation, addrReg, arrayReg, new Clarity.Rpa.HighSsaRegister[] { indexReg } )); outInstructions.Add(new Clarity.Rpa.Instructions.LoadPtrInstruction( midInstr.CodeLocation, destReg, addrReg )); } break; case MidInstruction.OpcodeEnum.LoadArrayElemAddr: { CLR.CLRTypeSpec indexSpec = m_builder.Assemblies.InternVagueType(new CLR.CLRSigTypeSimple(CLR.CLRSigType.ElementType.I)); Clarity.Rpa.HighSsaRegister arrayReg = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister indexReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg2, indexSpec, outline, outInstructions)); Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg3); outInstructions.Add(new Clarity.Rpa.Instructions.GetArrayElementPtrInstruction( midInstr.CodeLocation, destReg, arrayReg, new Clarity.Rpa.HighSsaRegister[] { indexReg } )); } break; case MidInstruction.OpcodeEnum.StoreField_ManagedPtr: { Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister valueReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg2, midInstr.TypeSpecArg2, outline, outInstructions)); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, valueReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.PtrFieldInstruction( midInstr.CodeLocation, addrReg, objReg, midInstr.StrArg)); outInstructions.Add(new Clarity.Rpa.Instructions.StorePtrInstruction( midInstr.CodeLocation, addrReg, valueReg )); } break; case MidInstruction.OpcodeEnum.StoreField_Object: { Clarity.Rpa.HighSsaRegister objReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.TypeSpecArg, outline, outInstructions)); Clarity.Rpa.HighSsaRegister valueReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg2, midInstr.TypeSpecArg2, outline, outInstructions)); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, valueReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.RefFieldInstruction( midInstr.CodeLocation, addrReg, objReg, midInstr.StrArg, RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg) )); outInstructions.Add(new Clarity.Rpa.Instructions.StorePtrInstruction( midInstr.CodeLocation, addrReg, valueReg )); } break; case MidInstruction.OpcodeEnum.add: case MidInstruction.OpcodeEnum.sub: case MidInstruction.OpcodeEnum.mul: case MidInstruction.OpcodeEnum.div: case MidInstruction.OpcodeEnum.rem: case MidInstruction.OpcodeEnum.and: case MidInstruction.OpcodeEnum.or: case MidInstruction.OpcodeEnum.xor: case MidInstruction.OpcodeEnum.shl: case MidInstruction.OpcodeEnum.shr: // [.un] { bool isUnsigned = (midInstr.ArithArg & MidInstruction.ArithEnum.Flags_Un) != 0; bool isOvf = (midInstr.ArithArg & MidInstruction.ArithEnum.Flags_Ovf) != 0; NumericStackType nst = NumericStackTypeForNumericBinaryOp(midInstr.RegArg, midInstr.RegArg2); Clarity.Rpa.Instructions.NumberArithType arithType; switch(nst) { case NumericStackType.Float32: arithType = Clarity.Rpa.Instructions.NumberArithType.Float32; break; case NumericStackType.Float64: arithType = Clarity.Rpa.Instructions.NumberArithType.Float64; break; case NumericStackType.Int32: arithType = isUnsigned ? Clarity.Rpa.Instructions.NumberArithType.UInt32 : Clarity.Rpa.Instructions.NumberArithType.Int32; break; case NumericStackType.Int64: arithType = isUnsigned ? Clarity.Rpa.Instructions.NumberArithType.UInt64 : Clarity.Rpa.Instructions.NumberArithType.Int64; break; case NumericStackType.NativeInt: arithType = isUnsigned ? Clarity.Rpa.Instructions.NumberArithType.NativeUInt : Clarity.Rpa.Instructions.NumberArithType.NativeInt; break; default: throw new ArgumentException(); } CLR.CLRTypeSpec opSpec = TypeSpecForNumericStackType(nst, isUnsigned); Clarity.Rpa.Instructions.NumberArithOp arithOp; bool canThrow = isOvf; switch (midInstr.Opcode) { case MidInstruction.OpcodeEnum.add: arithOp = Clarity.Rpa.Instructions.NumberArithOp.Add; break; case MidInstruction.OpcodeEnum.sub: arithOp = Clarity.Rpa.Instructions.NumberArithOp.Subtract; break; case MidInstruction.OpcodeEnum.mul: arithOp = Clarity.Rpa.Instructions.NumberArithOp.Multiply; break; case MidInstruction.OpcodeEnum.div: arithOp = Clarity.Rpa.Instructions.NumberArithOp.Divide; break; case MidInstruction.OpcodeEnum.rem: arithOp = Clarity.Rpa.Instructions.NumberArithOp.Modulo; break; case MidInstruction.OpcodeEnum.and: arithOp = Clarity.Rpa.Instructions.NumberArithOp.BitAnd; break; case MidInstruction.OpcodeEnum.or: arithOp = Clarity.Rpa.Instructions.NumberArithOp.BitOr; break; case MidInstruction.OpcodeEnum.xor: arithOp = Clarity.Rpa.Instructions.NumberArithOp.BitXor; break; case MidInstruction.OpcodeEnum.shl: arithOp = Clarity.Rpa.Instructions.NumberArithOp.ShiftLeft; break; case MidInstruction.OpcodeEnum.shr: arithOp = Clarity.Rpa.Instructions.NumberArithOp.ShiftRight; break; default: throw new ArgumentException(); } SsaRegister left = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, opSpec, outline, outInstructions); SsaRegister right = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, opSpec, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.ArithInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg3), arithOp, arithType, InternSsaRegister(left), InternSsaRegister(right), isOvf )); } break; case MidInstruction.OpcodeEnum.neg: case MidInstruction.OpcodeEnum.not: { Clarity.Rpa.HighSsaRegister srcReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.RegArg2.VType.TypeSpec, outline, outInstructions)); Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg2); Clarity.Rpa.Instructions.NumberArithType arithType; switch (midInstr.ArithArg) { case MidInstruction.ArithEnum.ArithType_Int32: arithType = Clarity.Rpa.Instructions.NumberArithType.Int32; break; case MidInstruction.ArithEnum.ArithType_Int64: arithType = Clarity.Rpa.Instructions.NumberArithType.Int64; break; case MidInstruction.ArithEnum.ArithType_NativeInt: arithType = Clarity.Rpa.Instructions.NumberArithType.NativeInt; break; case MidInstruction.ArithEnum.ArithType_Float32: arithType = Clarity.Rpa.Instructions.NumberArithType.Float32; break; case MidInstruction.ArithEnum.ArithType_Float64: arithType = Clarity.Rpa.Instructions.NumberArithType.Float64; break; default: throw new Exception(); } Clarity.Rpa.Instructions.NumberUnaryArithOp arithOp; switch(midInstr.Opcode) { case MidInstruction.OpcodeEnum.neg: arithOp = Clarity.Rpa.Instructions.NumberUnaryArithOp.Negate; break; case MidInstruction.OpcodeEnum.not: arithOp = Clarity.Rpa.Instructions.NumberUnaryArithOp.BitNot; break; default: throw new Exception(); } outInstructions.Add(new Clarity.Rpa.Instructions.UnaryArithInstruction( midInstr.CodeLocation, destReg, arithOp, arithType, srcReg )); } break; case MidInstruction.OpcodeEnum.TryConvertObj: { outInstructions.Add(new Clarity.Rpa.Instructions.DynamicCastInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg2), InternSsaRegister(midInstr.RegArg), RpaTagFactory.CreateTypeTag(midInstr.RegArg2.VType.TypeSpec) )); } break; case MidInstruction.OpcodeEnum.Leave: { outInstructions.Add(new Clarity.Rpa.Instructions.LeaveRegionInstruction( midInstr.CodeLocation, midInstr.UIntArg )); } break; case MidInstruction.OpcodeEnum.DuplicateReg: AliasSsaRegister(InternSsaRegister(midInstr.RegArg), midInstr.RegArg2); break; case MidInstruction.OpcodeEnum.StoreStaticField: { Clarity.Rpa.TypeSpecTag staticType = RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg); string fieldName = midInstr.StrArg; Clarity.Rpa.HighSsaRegister srcReg = InternSsaRegister(EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.TypeSpecArg2, outline, outInstructions)); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, srcReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.GetStaticFieldAddrInstruction( midInstr.CodeLocation, addrReg, staticType, fieldName )); outInstructions.Add(new Clarity.Rpa.Instructions.StorePtrInstruction( midInstr.CodeLocation, addrReg, srcReg )); } break; case MidInstruction.OpcodeEnum.LoadIndirect: { SsaRegister srcReg = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, midInstr.RegArg2.VType.TypeSpec, outline, outInstructions); SsaRegister destReg = midInstr.RegArg2; outInstructions.Add(new Clarity.Rpa.Instructions.LoadPtrInstruction( midInstr.CodeLocation, InternSsaRegister(destReg), InternSsaRegister(srcReg) )); } break; case MidInstruction.OpcodeEnum.LoadStaticField: { Clarity.Rpa.TypeSpecTag staticType = RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg); string fieldName = midInstr.StrArg; Clarity.Rpa.HighSsaRegister destReg = InternSsaRegister(midInstr.RegArg); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, destReg.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.GetStaticFieldAddrInstruction( midInstr.CodeLocation, addrReg, staticType, fieldName )); outInstructions.Add(new Clarity.Rpa.Instructions.LoadPtrInstruction( midInstr.CodeLocation, destReg, addrReg )); } break; case MidInstruction.OpcodeEnum.LoadStaticFieldAddr: { Clarity.Rpa.TypeSpecTag staticType = RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg); string fieldName = midInstr.StrArg; Clarity.Rpa.HighSsaRegister addrReg = InternSsaRegister(midInstr.RegArg); outInstructions.Add(new Clarity.Rpa.Instructions.GetStaticFieldAddrInstruction( midInstr.CodeLocation, addrReg, staticType, fieldName )); } break; case MidInstruction.OpcodeEnum.Box: { outInstructions.Add(new Clarity.Rpa.Instructions.BoxInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg2), InternSsaRegister(midInstr.RegArg) )); } break; case MidInstruction.OpcodeEnum.ConvertNumber: { bool isOvf = ((midInstr.ArithArg & MidInstruction.ArithEnum.Flags_Ovf) != 0); bool isUn = ((midInstr.ArithArg & MidInstruction.ArithEnum.Flags_Un) != 0); SsaRegister srcReg = midInstr.RegArg; SsaRegister destReg = midInstr.RegArg2; NumericStackType sourceNST = StackTypeForTypeSpec(midInstr.RegArg.VType.TypeSpec); CLR.CLRTypeSpec srcSignAdjustedType = TypeSpecForNumericStackType(sourceNST, isUn); srcReg = EmitPassiveConversion(midInstr.CodeLocation, srcReg, srcSignAdjustedType, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.NumberConvertInstruction( midInstr.CodeLocation, InternSsaRegister(destReg), InternSsaRegister(srcReg), isOvf )); } break; case MidInstruction.OpcodeEnum.LoadArrayLength: { outInstructions.Add(new Clarity.Rpa.Instructions.GetArrayLengthInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg2), InternSsaRegister(midInstr.RegArg) )); } break; case MidInstruction.OpcodeEnum.LoadTypeInfoHandle: { outInstructions.Add(new Clarity.Rpa.Instructions.GetTypeInfoInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg) )); } break; case MidInstruction.OpcodeEnum.ConvertObj: { outInstructions.Add(new Clarity.Rpa.Instructions.ForceDynamicCastInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg2), InternSsaRegister(midInstr.RegArg), RpaTagFactory.CreateTypeTag(midInstr.RegArg2.VType.TypeSpec) )); } break; case MidInstruction.OpcodeEnum.StoreArrayElem: { CLR.CLRTypeSpec szArraySpec = midInstr.RegArg.VType.TypeSpec; CLR.CLRTypeSpec subscriptType = ((CLR.CLRTypeSpecSZArray)szArraySpec).SubType; SsaRegister arrayReg = midInstr.RegArg; SsaRegister indexReg = midInstr.RegArg2; SsaRegister valueReg = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg3, subscriptType, outline, outInstructions); Clarity.Rpa.HighSsaRegister arrayRegHigh = InternSsaRegister(arrayReg); Clarity.Rpa.HighSsaRegister indexRegHigh = InternSsaRegister(indexReg); Clarity.Rpa.HighSsaRegister valueRegHigh = InternSsaRegister(valueReg); Clarity.Rpa.HighSsaRegister addrReg = new Clarity.Rpa.HighSsaRegister(Clarity.Rpa.HighValueType.ManagedPtr, valueRegHigh.Type, null); outInstructions.Add(new Clarity.Rpa.Instructions.GetArrayElementPtrInstruction( midInstr.CodeLocation, addrReg, arrayRegHigh, new Clarity.Rpa.HighSsaRegister[] { indexRegHigh } )); outInstructions.Add(new Clarity.Rpa.Instructions.StorePtrInstruction( midInstr.CodeLocation, addrReg, valueRegHigh)); } break; case MidInstruction.OpcodeEnum.Switch: { CLR.CLRTypeSpec intType = m_builder.Assemblies.InternVagueType(new CLR.CLRSigTypeSimple(CLR.CLRSigType.ElementType.U4)); SsaRegister caseReg = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg, intType, outline, outInstructions); int numCases = midInstr.CfgEdgesArg.Length; Clarity.Rpa.HighCfgNodeHandle[] outNodes = new Clarity.Rpa.HighCfgNodeHandle[numCases]; for (int i = 0; i < numCases; i++) { CfgOutboundEdge edge = midInstr.CfgEdgesArg[i]; CfgNode caseNode = edge.SuccessorNode; CppTranslatedOutboundEdge outEdge = InternOutboundEdge(cfgNode, edge); outNodes[i] = outEdge.NextNode; } fallthroughMerged = true; CppTranslatedOutboundEdge defaultEdge = InternOutboundEdge(cfgNode, cfgNode.FallThroughEdge); outInstructions.Add(new Clarity.Rpa.Instructions.SwitchInstruction( midInstr.CodeLocation, InternSsaRegister(caseReg), outNodes, defaultEdge.NextNode )); } break; case MidInstruction.OpcodeEnum.StoreIndirect: { SsaRegister destReg = midInstr.RegArg; SsaRegister valueReg = EmitPassiveConversion(midInstr.CodeLocation, midInstr.RegArg2, midInstr.RegArg.VType.TypeSpec, outline, outInstructions); outInstructions.Add(new Clarity.Rpa.Instructions.StorePtrInstruction( midInstr.CodeLocation, InternSsaRegister(destReg), InternSsaRegister(valueReg) )); } break; case MidInstruction.OpcodeEnum.LoadFieldInfoHandle: { outInstructions.Add(new Clarity.Rpa.Instructions.GetFieldInfoInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg), RpaTagFactory.CreateTypeTag(midInstr.TypeSpecArg), midInstr.StrArg, midInstr.FlagArg )); } break; case MidInstruction.OpcodeEnum.UnboxPtr: { outInstructions.Add(new Clarity.Rpa.Instructions.UnboxPtrInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg2), InternSsaRegister(midInstr.RegArg) )); } break; case MidInstruction.OpcodeEnum.UnboxValue: { outInstructions.Add(new Clarity.Rpa.Instructions.UnboxValueInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg2), InternSsaRegister(midInstr.RegArg) )); } break; case MidInstruction.OpcodeEnum.ZeroFillPtr: outInstructions.Add(new Clarity.Rpa.Instructions.ZeroFillPtrInstruction( midInstr.CodeLocation, InternSsaRegister(midInstr.RegArg) )); break; case MidInstruction.OpcodeEnum.EnterProtectedBlock: { ExceptionHandlingCluster cluster = midInstr.EhClusterArg; Clarity.Rpa.HighRegion tryRegion; { CppRegionEmitter tryEmitter = new CppRegionEmitter(m_builder, cluster.TryRegion, m_regAllocator, m_localLookup); tryRegion = tryEmitter.Emit(); } List<HighCatchHandler> catchHandlers = new List<HighCatchHandler>(); List<HighRegion> otherRegions = new List<HighRegion>(); foreach (ExceptionHandlingRegion handlerRegion in cluster.ExceptionHandlingRegions) { CppRegionEmitter hdlEmitter = new CppRegionEmitter(m_builder, handlerRegion, m_regAllocator, m_localLookup); HighRegion hdlRegion = hdlEmitter.Emit(); switch (cluster.ClusterType) { case ExceptionHandlingCluster.ClusterTypeEnum.TryCatch: { HighCfgNode entryNode = hdlRegion.EntryNode.Value; // Inject a catch landing instruction and recreate the phi node. // This is safe because III.1.7.5 disallows backward branches with stack, // so the only valid way to reach a catch handler is by catching, never via // a predecessor. if (entryNode.Phis.Length != 1 || entryNode.Phis[0].Links.Length != 0) throw new Exception("Catch handler should start with an unlinked phi node"); HighSsaRegister exceptionReg = entryNode.Phis[0].Dest; CodeLocationTag codeLoc = entryNode.Instructions[0].CodeLocation; List<HighInstruction> catchLandingInstrs = new List<HighInstruction>(); HighSsaRegister catchDest = new HighSsaRegister(HighValueType.ReferenceValue, exceptionReg.Type, null); catchLandingInstrs.Add(new Clarity.Rpa.Instructions.CatchInstruction(codeLoc, catchDest, exceptionReg.Type)); catchLandingInstrs.Add(new Clarity.Rpa.Instructions.BranchInstruction(codeLoc, hdlRegion.EntryNode)); HighCfgNode landingNode = new HighCfgNode(new HighCfgNodeHandle[0], new HighPhi[0], catchLandingInstrs.ToArray()); HighCfgNodeHandle landingHandle = new HighCfgNodeHandle(landingNode); entryNode.Predecessors = new HighCfgNodeHandle[] { landingHandle }; entryNode.Phis[0].Links = new HighPhiLink[] { new HighPhiLink(landingHandle, catchDest) }; HighRegion replacementRegion = new HighRegion(landingHandle); catchHandlers.Add(new HighCatchHandler( RpaTagFactory.CreateTypeTag(handlerRegion.ExceptionType), replacementRegion )); } break; case ExceptionHandlingCluster.ClusterTypeEnum.TryFault: case ExceptionHandlingCluster.ClusterTypeEnum.TryFinally: otherRegions.Add(hdlRegion); break; default: throw new Exception(); } } List<Clarity.Rpa.HighEscapePathTerminator> terminators = new List<Clarity.Rpa.HighEscapePathTerminator>(); foreach (uint escapePath in cluster.EscapePaths) { CfgNode targetNode; if (m_region.EscapeTerminators.TryGetValue(escapePath, out targetNode)) { Clarity.Rpa.HighCfgNodeHandle terminatorNode = InternHighCfgNode(targetNode); terminators.Add(new Clarity.Rpa.HighEscapePathTerminator(escapePath, terminatorNode)); } } Clarity.Rpa.HighProtectedRegion protRegion; switch (cluster.ClusterType) { case ExceptionHandlingCluster.ClusterTypeEnum.TryCatch: protRegion = new Clarity.Rpa.HighTryCatchRegion(tryRegion, catchHandlers.ToArray()); break; case ExceptionHandlingCluster.ClusterTypeEnum.TryFault: protRegion = new Clarity.Rpa.HighTryFaultRegion(tryRegion, otherRegions[0]); break; case ExceptionHandlingCluster.ClusterTypeEnum.TryFinally: protRegion = new Clarity.Rpa.HighTryFinallyRegion(tryRegion, otherRegions[0]); break; default: throw new Exception(); } Clarity.Rpa.HighEHCluster highCluster = new Clarity.Rpa.HighEHCluster(protRegion, terminators.ToArray()); outInstructions.Add(new Clarity.Rpa.Instructions.EnterProtectedBlockInstruction( midInstr.CodeLocation, highCluster )); } break; case MidInstruction.OpcodeEnum.ExitFinally: outInstructions.Add(new Clarity.Rpa.Instructions.ReturnInstruction(midInstr.CodeLocation)); break; case MidInstruction.OpcodeEnum.BindDelegate: { SsaRegister objReg = midInstr.RegArg; CppMethodSpec methodSpec = (CppMethodSpec)midInstr.RegArg2.ConstantValue; SsaRegister destReg = midInstr.RegArg3; Clarity.Rpa.MethodSignatureTag sigTag = RpaTagFactory.CreateMethodSignature(methodSpec.CppMethod.MethodSignature); Clarity.Rpa.HighSsaRegister destRegHigh = InternSsaRegister(destReg); Clarity.Rpa.MethodSlotType slotType; if (methodSpec.CppMethod.Static) slotType = Clarity.Rpa.MethodSlotType.Static; else { objReg = EmitPassiveConversion(midInstr.CodeLocation, objReg, methodSpec.CppMethod.DeclaredInClassSpec, outline, outInstructions); if (midInstr.RegArg2.VType.ValType == VType.ValTypeEnum.DelegateSimpleMethod) slotType = Clarity.Rpa.MethodSlotType.Instance; else if (midInstr.RegArg2.VType.ValType == VType.ValTypeEnum.DelegateVirtualMethod) slotType = Clarity.Rpa.MethodSlotType.Virtual; else throw new ArgumentException(); } Clarity.Rpa.MethodSpecTag methodSpecTag = RpaTagFactory.CreateMethodSpec(slotType, methodSpec); if (methodSpec.CppMethod.Static) { outInstructions.Add(new Clarity.Rpa.Instructions.BindStaticDelegateInstruction( midInstr.CodeLocation, InternSsaRegister(destReg), methodSpecTag )); } else if (midInstr.RegArg2.VType.ValType == VType.ValTypeEnum.DelegateSimpleMethod) { outInstructions.Add(new Clarity.Rpa.Instructions.BindInstanceDelegateInstruction( midInstr.CodeLocation, InternSsaRegister(destReg), InternSsaRegister(objReg), methodSpecTag )); } else if (midInstr.RegArg2.VType.ValType == VType.ValTypeEnum.DelegateVirtualMethod) { outInstructions.Add(new Clarity.Rpa.Instructions.BindVirtualDelegateInstruction( midInstr.CodeLocation, InternSsaRegister(destReg), InternSsaRegister(objReg), methodSpecTag )); } } break; default: throw new ArgumentException("Invalid mid IL opcode"); } } if (cfgNode.FallThroughEdge != null && !fallthroughMerged) { CppTranslatedOutboundEdge outEdge = InternOutboundEdge(cfgNode, cfgNode.FallThroughEdge); outInstructions.Add(new Clarity.Rpa.Instructions.BranchInstruction(cfgNode.FallThroughEdge.CodeLocation, outEdge.NextNode)); } List<HighCfgNodeHandle> highPreds = new List<HighCfgNodeHandle>(); foreach (CppTranslatedOutboundEdge predEdge in predecessorEdges) highPreds.Add(predEdge.PrevNode); highNode.Value = new HighCfgNode(highPreds.ToArray(), outPhis.ToArray(), outInstructions.ToArray()); }