/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
// Simple result is the same type as the unary argument
ctx.Result = compiler.CreateVirtualRegister(ctx.Operand1.Type);
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
SZArraySigType arrayType = ctx.Operand1.Type as SZArraySigType;
if (arrayType == null)
throw new InvalidProgramException(@"Operand to ldlen is not a vector.");
ctx.Result = compiler.CreateVirtualRegister(BuiltInSigType.IntPtr);
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx"></param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
// Validate the operand
StackTypeCode result = _typeCodes[(int)ctx.Operand1.StackType];
if (StackTypeCode.Unknown == result)
throw new InvalidOperationException(@"Invalid operand to Neg instruction [" + result + "]");
ctx.Result = compiler.CreateVirtualRegister(ctx.Operand1.Type);
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
StackTypeCode result = _operandTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
Debug.Assert(StackTypeCode.Unknown != result, @"Can't shift with the given stack operands.");
if (StackTypeCode.Unknown == result)
throw new InvalidOperationException(@"Invalid stack state for pairing (" + ctx.Operand1.StackType + ", " + ctx.Operand2.StackType + ")");
ctx.Result = compiler.CreateVirtualRegister(Operand.SigTypeFromStackType(result));
}
/// <summary>
/// Sets the invoke target.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
/// <param name="method">The method.</param>
private static void SetInvokeTarget(Context ctx, IMethodCompiler compiler, RuntimeMethod method)
{
if (method == null)
throw new ArgumentNullException(@"method");
// Signature of the call target
// Number of parameters required for the call
ctx.InvokeTarget = method;
// Retrieve the target signature
MethodSignature signature = ctx.InvokeTarget.Signature;
// Fix the parameter list
byte paramCount = (byte)signature.Parameters.Length;
if (signature.HasThis && !signature.HasExplicitThis)
paramCount++;
// Setup operands for parameters and the return value
if (signature.ReturnType.Type != CilElementType.Void)
{
ctx.ResultCount = 1;
ctx.Result = compiler.CreateVirtualRegister(signature.ReturnType);
}
else
ctx.ResultCount = 0;
ctx.OperandCount = paramCount;
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
StackTypeCode result = StackTypeCode.Unknown;
switch (opcode)
{
case OpCode.Add_ovf_un:
result = _addovfunTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
break;
case OpCode.Sub_ovf_un:
result = _subovfunTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
break;
default:
result = _operandTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
break;
}
if (StackTypeCode.Unknown == result)
throw new InvalidOperationException(@"Invalid operand types passed to " + opcode);
ctx.Result = compiler.CreateVirtualRegister(Operand.SigTypeFromStackType(result));
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
StackTypeCode result = StackTypeCode.Unknown;
switch (opcode)
{
case OpCode.Add:
result = addTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
break;
case OpCode.Sub:
result = subTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
break;
default:
result = operandTable[(int)ctx.Operand1.StackType][(int)ctx.Operand2.StackType];
break;
}
if (StackTypeCode.Unknown == result)
throw new InvalidOperationException(@"Invalid operand types passed to " + opcode);
SigType resultType;
if (result != StackTypeCode.Ptr)
{
resultType = Operand.SigTypeFromStackType(result);
}
else
{
// Copy the pointer element type
PtrSigType op0 = ctx.Operand1.Type as PtrSigType;
PtrSigType op1 = ctx.Operand2.Type as PtrSigType;
if (op0 != null)
resultType = new PtrSigType(op0.CustomMods, op0.ElementType);
else if (op1 != null)
resultType = new PtrSigType(op1.CustomMods, op1.ElementType);
else
throw new InvalidOperationException();
}
ctx.Result = compiler.CreateVirtualRegister(resultType);
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx"></param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
// Validate the typecode & determine the resulting stack type
SigType resultType;
switch (opcode)
{
case OpCode.Conv_u: goto case OpCode.Conv_i;
case OpCode.Conv_i:
resultType = compiler.Architecture.NativeType;
break;
case OpCode.Conv_i1:
resultType = BuiltInSigType.SByte;
break;
case OpCode.Conv_i2:
resultType = BuiltInSigType.Int16;
break;
case OpCode.Conv_i4:
resultType = BuiltInSigType.Int32;
break;
case OpCode.Conv_i8:
resultType = BuiltInSigType.Int64;
break;
case OpCode.Conv_r4:
resultType = BuiltInSigType.Single;
break;
case OpCode.Conv_r8:
resultType = BuiltInSigType.Double;
break;
case OpCode.Conv_u1:
resultType = BuiltInSigType.Byte;
break;
case OpCode.Conv_u2:
resultType = BuiltInSigType.UInt16;
break;
case OpCode.Conv_u4:
resultType = BuiltInSigType.UInt32;
break;
case OpCode.Conv_u8:
resultType = BuiltInSigType.UInt64;
break;
case OpCode.Conv_ovf_i: goto case OpCode.Conv_i;
case OpCode.Conv_ovf_u: goto case OpCode.Conv_i;
case OpCode.Conv_ovf_i_un: goto case OpCode.Conv_i;
case OpCode.Conv_ovf_u_un: goto case OpCode.Conv_i;
default:
throw new NotSupportedException(@"Overflow checking conversions not supported.");
}
ctx.Result = compiler.CreateVirtualRegister(resultType);
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
// If we're ldind.i8, fix an IL deficiency that the result may be U8
if (opcode == OpCode.Ldind_i8 && typeRef.Type == CilElementType.I8)
{
SigType opType = ctx.Operand1.Type;
RefSigType rst = opType as RefSigType;
PtrSigType ptr = opType as PtrSigType;
if (rst != null && rst.ElementType.Type == CilElementType.U8
|| ptr != null && ptr.ElementType.Type == CilElementType.U8)
{
ctx.Result = compiler.CreateVirtualRegister(BuiltInSigType.UInt64);
}
}
}
/// <summary>
/// Validates the instruction operands and creates a matching variable for the result.
/// </summary>
/// <param name="ctx">The context.</param>
/// <param name="compiler">The compiler.</param>
public override void Validate(Context ctx, IMethodCompiler compiler)
{
base.Validate(ctx, compiler);
var stackTypeForOperand1 = ctx.Operand1.StackType;
var stackTypeForOperand2 = ctx.Operand2.StackType;
if (ctx.Operand1.Type is ValueTypeSigType)
{
var op1Type = compiler.Method.Module.GetType ((ctx.Operand1.Type as ValueTypeSigType).Token);
if (op1Type.BaseType.FullName == "System.Enum")
stackTypeForOperand1 = this.FromSigType (op1Type.Fields[0].SignatureType.Type);
}
if (ctx.Operand2.Type is ValueTypeSigType)
{
var op2Type = compiler.Method.Module.GetType ((ctx.Operand2.Type as ValueTypeSigType).Token);
if (op2Type.BaseType.FullName == "System.Enum")
stackTypeForOperand2 = this.FromSigType (op2Type.Fields[0].SignatureType.Type);
}
var result = _opTable[(int)stackTypeForOperand1][(int)stackTypeForOperand2];
if (result == StackTypeCode.Unknown)
throw new InvalidOperationException (@"Invalid stack result of instruction: " + result.ToString () + " (" + ctx.Operand1.ToString () + ")");
ctx.Result = compiler.CreateVirtualRegister(Operand.SigTypeFromStackType(result));
}