public CppMidCompiler(CppBuilder builder, CppClass cls, CppMethod method, ExceptionHandlingRegion mainRegion, string frameVarName, VReg[] args, VReg[] locals, VReg[] temporaries)
{
m_builder = builder;
m_cls = cls;
m_method = method;
m_mainRegion = mainRegion;
m_args = args;
m_locals = locals;
m_temporaries = temporaries;
m_frameVarName = frameVarName;
m_instructionStream = new MemoryStream();
m_instructionWriter = new StreamWriter(m_instructionStream);
m_regAllocator = new CppRegisterAllocator(builder);
}
public CfgBuilder(ExceptionHandlingRegion region, CppBuilder builder, CppClass cls, CppMethod method, VReg[] args, VReg[] locals, IList<VReg> temporaries)
{
m_builder = builder;
m_cls = cls;
m_method = method;
m_args = args;
m_locals = locals;
m_temporaries = temporaries;
m_instrs = method.MethodDef.Method.Instructions;
m_inClass = cls.TypeDef;
m_inMethod = method.MethodDef;
m_region = region;
m_startInstr = (int)region.StartInstr;
m_endInstr = (int)region.EndInstr;
m_ehClusters = region.Clusters;
LocateBranchTargets();
ConstructCfg();
CreateSuccessionGraph();
}
public static string StorageLocForVReg(VReg vReg, bool makeLive, bool zombify)
{
return vReg.SlotName;
}
public SsaVRegMapping(SsaRegister ssaReg, VReg vReg)
{
m_ssaReg = ssaReg;
m_vReg = vReg;
}
private VReg GetTemporary(VType vType)
{
foreach (VReg vReg in m_temporaries)
if (vReg.VType.Equals(vType))
return vReg;
int slot = m_temporaries.Count + m_cfgNode.CfgBuilder.Locals.Length + m_cfgNode.CfgBuilder.Args.Length;
VReg newVReg = new VReg(m_cppBuilder, "temp_", vType, slot, VReg.UsageEnum.Temporary);
m_temporaries.Add(newVReg);
return newVReg;
}
private VReg NewDeadReg(VType vType, VReg.UsageEnum usage)
{
VReg newReg = new VReg(m_builder, "bVReg", vType, m_registers.Count, usage);
m_registers.Add(newReg);
return newReg;
}
public static void WriteMethodCode(Clarity.Rpa.HighFileBuilder fileBuilder, BinaryWriter writer, CppBuilder builder, CppClass cls, CppMethod method)
{
List<VReg> args = new List<VReg>();
if (!method.Static)
{
CppClass thisClass = builder.GetCachedClass(method.DeclaredInClassSpec);
CLRTypeSpec thisTypeSpec = method.DeclaredInClassSpec;
VType vt = new VType(thisClass.IsValueType ? VType.ValTypeEnum.ManagedPtr : VType.ValTypeEnum.ReferenceValue, thisTypeSpec);
args.Add(new VReg(builder, "bThis", vt, args.Count, VReg.UsageEnum.Argument));
}
foreach (CLRMethodSignatureInstanceParam param in method.MethodSignature.ParamTypes)
{
CLRTypeSpec spec = param.Type;
VType vt;
switch (param.TypeOfType)
{
case CLRSigParamOrRetType.TypeOfTypeEnum.ByRef:
vt = new VType(VType.ValTypeEnum.ManagedPtr, spec);
break;
case CLRSigParamOrRetType.TypeOfTypeEnum.Value:
vt = new VType(ValTypeForTypeSpec(builder, spec), spec);
break;
default:
throw new ArgumentException();
}
args.Add(new VReg(builder, "bParam", vt, args.Count, VReg.UsageEnum.Argument));
}
List<VReg> locals = new List<VReg>();
CLRSigLocalVarSig localVarSig = method.MethodDef.Method.LocalVarSig;
if (localVarSig != null)
{
foreach (CLRSigLocalVar localVar in localVarSig.LocalVars)
{
if (localVar.Constraints != null && localVar.Constraints.Length > 0)
throw new NotSupportedException("Local var constraints are not supported");
if (localVar.CustomMods != null && localVar.CustomMods.Length > 0)
throw new NotSupportedException("Local var custom mods are not supported");
CLRTypeSpec localTypeSpec = builder.Assemblies.InternVagueType(localVar.Type);
VReg vreg = null;
switch (localVar.VarKind)
{
case CLRSigLocalVar.LocalVarKind.ByRef:
vreg = new VReg(builder, "bLocal", new VType(VType.ValTypeEnum.ManagedPtr, localTypeSpec), locals.Count, VReg.UsageEnum.Local);
break;
case CLRSigLocalVar.LocalVarKind.Default:
vreg = new VReg(builder, "bLocal", new VType(CppCilExporter.ValTypeForTypeSpec(builder, localTypeSpec), localTypeSpec), locals.Count, VReg.UsageEnum.Local);
break;
default:
throw new NotImplementedException();
}
locals.Add(vreg);
}
}
foreach (VReg vReg in locals)
vReg.Liven();
foreach (VReg vReg in args)
vReg.Liven();
List<VReg> temporaries = new List<VReg>();
ExceptionHandlingRegion mainRegion = new ExceptionHandlingRegion(null, builder, method, 0, (uint)method.MethodDef.Method.Instructions.Length - 1, null);
{
CfgBuilder cfgBuilder = new CfgBuilder(mainRegion, builder, cls, method, args.ToArray(), locals.ToArray(), temporaries);
mainRegion.RootCfgNode = cfgBuilder.RootNode;
}
CppMidCompiler midCompiler = new CppMidCompiler(builder, cls, method, mainRegion, "bTLFrame", args.ToArray(), locals.ToArray(), temporaries.ToArray());
midCompiler.EmitAll(fileBuilder, writer);
//MidCompile(builder, cls, method, mainRegion, args.ToArray(), locals.ToArray(), writer.BaseStream);
foreach (VReg vReg in locals)
{
if (!vReg.IsAlive || vReg.IsZombie)
throw new Exception("Internal error: local vreg was killed");
}
foreach (VReg vReg in args)
{
if (!vReg.IsAlive || vReg.IsZombie)
throw new Exception("Internal error: arg vreg was killed");
}
}
public MidInstruction(OpcodeEnum opcode, CodeLocationTag codeLocation, VReg vRegArg, SsaRegister regArg)
{
Opcode = opcode;
CodeLocation = codeLocation;
VRegArg = vRegArg;
RegArg = regArg;
}