| public CreateVirtualRegister ( MosaType type ) : Operand | ||
| type | MosaType | The signature type of the virtual register. |
| return | Operand | |
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand dest = context.Operand1;
Operand value = context.Operand2;
Operand v1 = methodCompiler.CreateVirtualRegister(dest.Type);
Operand v2 = methodCompiler.CreateVirtualRegister(value.Type);
Operand memory = Operand.CreateMemoryAddress(context.InvokeMethod.Signature.Parameters[1].ParameterType, v1, 0);
context.SetInstruction(X86.Mov, v1, dest);
context.AppendInstruction(X86.Mov, v2, value);
context.AppendInstruction(X86.Mov, memory, v2);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
var dest = context.Operand1;
var src = context.Operand2;
var v0 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.Void);
var v1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.Void);
var zero = Operand.CreateConstant(methodCompiler.TypeSystem, 0);
var offset16 = Operand.CreateConstant(methodCompiler.TypeSystem, 16);
context.SetInstruction(X86.MovupsLoad, InstructionSize.Size128, v0, dest, zero);
context.AppendInstruction(X86.MovupsLoad, InstructionSize.Size128, v1, dest, offset16);
context.AppendInstruction(X86.MovupsStore, InstructionSize.Size128, null, dest, zero, v0);
context.AppendInstruction(X86.MovupsStore, InstructionSize.Size128, null, dest, offset16, v1);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
var result = context.Result;
var address = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.I4);
context.SetInstruction(IRInstruction.Move, address, Operand.CreateUnmanagedSymbolPointer(methodCompiler.TypeSystem, Multiboot0695Stage.MultibootEBX));
context.AppendInstruction(IRInstruction.Move, result, Operand.CreateMemoryAddress(methodCompiler.TypeSystem.BuiltIn.I4, address, 0));
}
private static void PatchConstructor(BaseMethodCompiler methodCompiler)
{
Operand thisOperand = methodCompiler.Parameters[0];
Operand instanceOperand = methodCompiler.Parameters[1];
Operand methodPointerOperand = methodCompiler.Parameters[2];
var size = methodCompiler.Architecture.NativeInstructionSize;
MosaField methodPointerField = GetField(methodCompiler.Method.DeclaringType, "methodPointer");
int methodPointerOffset = methodCompiler.TypeLayout.GetFieldOffset(methodPointerField);
Operand methodPointerOffsetOperand = Operand.CreateConstant(methodCompiler.TypeSystem, methodPointerOffset);
MosaField instanceField = GetField(methodCompiler.Method.DeclaringType, "instance");
int instanceOffset = methodCompiler.TypeLayout.GetFieldOffset(instanceField);
Operand instanceOffsetOperand = Operand.CreateConstant(methodCompiler.TypeSystem, instanceOffset);
var context = new Context(CreateMethodStructure(methodCompiler, true));
Operand v1 = methodCompiler.CreateVirtualRegister(thisOperand.Type);
context.AppendInstruction(IRInstruction.Move, v1, thisOperand);
context.AppendInstruction(IRInstruction.Store, size, null, v1, methodPointerOffsetOperand, methodPointerOperand);
context.MosaType = methodPointerOperand.Type;
context.AppendInstruction(IRInstruction.Store, size, null, v1, instanceOffsetOperand, instanceOperand);
context.MosaType = instanceOperand.Type;
context.AppendInstruction(IRInstruction.Return, methodCompiler.BasicBlocks.EpilogueBlock);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand result = context.Result;
Operand imm = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.U4);
context.SetInstruction(X86.MovCR, imm, Operand.CreateCPURegister(methodCompiler.TypeSystem.BuiltIn.U4, control));
context.AppendInstruction(X86.Mov, result, imm);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand operand1 = context.Operand1;
Operand v1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.U4);
context.SetInstruction(X86.Mov, v1, operand1);
context.AppendInstruction(X86.Mov, Operand.CreateCPURegister(methodCompiler.TypeSystem.BuiltIn.U4, SegmentRegister.FS), v1);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand result = context.Result;
Operand edx = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.Pointer);
Operand operand = Operand.CreateMemoryAddress(context.Operand1.Type, edx, 0);
context.SetInstruction(X86.Mov, edx, context.Operand1);
context.AppendInstruction(X86.Mov, result, operand);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand result = context.Result;
Operand eax = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.U4);
context.AppendInstruction(X86.Add, eax, eax, Operand.CreateCPURegister(methodCompiler.TypeSystem.BuiltIn.U4, GeneralPurposeRegister.ESP));
context.AppendInstruction(X86.Mov, eax, Operand.CreateMemoryAddress(methodCompiler.TypeSystem.BuiltIn.U4, eax, 0));
context.AppendInstruction(X86.Mov, result, eax);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand result = context.Result;
Operand v1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.Pointer);
Operand operand = Operand.CreateMemoryAddress(methodCompiler.TypeSystem.BuiltIn.U2, v1, 0);
Debug.Assert(result.IsI4 | result.IsU4);
context.SetInstruction(X86.Mov, v1, context.Operand1);
context.AppendInstruction(X86.Movzx, InstructionSize.Size16, result, operand);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
var result = context.Result;
var dividend = context.Operand1;
var divisor = context.Operand2;
if (result.IsR8)
{
var xmm1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.R8);
var xmm2 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.R8);
var xmm3 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.R8);
var size = InstructionSize.Size64;
context.SetInstruction(X86.Divsd, size, xmm1, dividend, divisor);
context.AppendInstruction(X86.Roundsd, size, xmm2, xmm1, Operand.CreateConstant(methodCompiler.TypeSystem.BuiltIn.U1, 0x3));
context.AppendInstruction(X86.Mulsd, size, xmm3, divisor, xmm2);
context.AppendInstruction(X86.Subsd, size, result, dividend, xmm3);
}
else
{
var xmm1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.R4);
var xmm2 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.R4);
var xmm3 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.R4);
var size = InstructionSize.Size32;
context.SetInstruction(X86.Divss, size, xmm1, dividend, divisor);
context.AppendInstruction(X86.Roundss, size, xmm2, xmm1, Operand.CreateConstant(methodCompiler.TypeSystem.BuiltIn.U1, 0x3));
context.AppendInstruction(X86.Mulss, size, xmm3, divisor, xmm2);
context.AppendInstruction(X86.Subss, size, result, dividend, xmm3);
}
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
Operand n = context.Operand1;
Operand d = context.Operand2;
Operand result = context.Result;
Operand result2 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.U4);
Operand op0L, op0H;
LongOperandTransformationStage.SplitLongOperand(methodCompiler, n, out op0L, out op0H);
context.SetInstruction2(X86.Div, result2, result, op0H, op0L, d);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
var pointer = context.Operand1;
var oldval = context.Operand2;
var newval = context.Operand3;
var result = context.Result;
var eax = Operand.CreateCPURegister(methodCompiler.TypeSystem.BuiltIn.U4, x86.GeneralPurposeRegister.EAX);
var v1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.U4);
var mem1 = Operand.CreateMemoryAddress(pointer.Type, pointer, 0);
context.SetInstruction(X86.Mov, v1, newval);
context.AppendInstruction(X86.Mov, eax, oldval);
context.AppendInstruction(X86.Lock);
context.AppendInstruction(X86.CmpXchg, mem1, mem1, v1, eax);
context.AppendInstruction(X86.Setcc, ConditionCode.Equal, result);
}
/// <summary>
/// Replaces the intrinsic call site
/// </summary>
/// <param name="context">The context.</param>
/// <param name="typeSystem">The type system.</param>
void IIntrinsicPlatformMethod.ReplaceIntrinsicCall(Context context, BaseMethodCompiler methodCompiler)
{
var pointer = context.Operand1;
var oldval = context.Operand2;
var newval = context.Operand3;
var result = context.Result;
var eax = Operand.CreateCPURegister(methodCompiler.TypeSystem.BuiltIn.U4, GeneralPurposeRegister.EAX);
var zero = Operand.CreateConstant(methodCompiler.TypeSystem, 0);
var v1 = methodCompiler.CreateVirtualRegister(methodCompiler.TypeSystem.BuiltIn.U4);
// Compare EAX with r/m32. If equal, ZF is set and r32 is loaded into r/m32.
// Else, clear ZF and load r/m32 into EAX.
context.SetInstruction(X86.Mov, eax, oldval);
context.AppendInstruction(X86.Mov, v1, newval);
context.AppendInstruction(X86.Lock);
context.AppendInstruction(X86.CmpXchgLoad, InstructionSize.Size32, eax, eax, pointer, zero, v1);
context.AppendInstruction(X86.Setcc, ConditionCode.Equal, result);
}
private static void PatchConstructor(BaseMethodCompiler methodCompiler)
{
Operand thisOperand = methodCompiler.Parameters[0];
Operand instanceOperand = methodCompiler.Parameters[1];
Operand methodPointerOperand = methodCompiler.Parameters[2];
var size = methodCompiler.Architecture.NativeInstructionSize;
MosaField methodPointerField = GetField(methodCompiler.Method.DeclaringType, "methodPointer");
int methodPointerOffset = methodCompiler.TypeLayout.GetFieldOffset(methodPointerField);
Operand methodPointerOffsetOperand = Operand.CreateConstant(methodCompiler.TypeSystem, methodPointerOffset);
MosaField instanceField = GetField(methodCompiler.Method.DeclaringType, "instance");
int instanceOffset = methodCompiler.TypeLayout.GetFieldOffset(instanceField);
Operand instanceOffsetOperand = Operand.CreateConstant(methodCompiler.TypeSystem, instanceOffset);
var context = new Context(CreateMethodStructure(methodCompiler, true));
Operand v1 = methodCompiler.CreateVirtualRegister(thisOperand.Type);
Operand v2 = methodCompiler.CreateVirtualRegister(methodPointerOperand.Type);
Operand v3 = methodCompiler.CreateVirtualRegister(instanceOperand.Type);
context.AppendInstruction(IRInstruction.LoadInteger, v1, methodCompiler.StackFrame, thisOperand);
context.AppendInstruction(IRInstruction.LoadInteger, v2, methodCompiler.StackFrame, methodPointerOperand);
context.AppendInstruction(IRInstruction.LoadInteger, v3, methodCompiler.StackFrame, instanceOperand);
context.AppendInstruction(IRInstruction.StoreInteger, size, null, v1, methodPointerOffsetOperand, v2);
context.MosaType = methodPointerOperand.Type;
context.AppendInstruction(IRInstruction.StoreInteger, size, null, v1, instanceOffsetOperand, v3);
context.MosaType = instanceOperand.Type;
context.AppendInstruction(IRInstruction.Return, methodCompiler.BasicBlocks.EpilogueBlock);
}
/// <summary>
/// Create platform compound move.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="destination">The destination.</param>
/// <param name="source">The source.</param>
/// <param name="size">The size.</param>
public override void InsertCompoundMoveInstruction(BaseMethodCompiler compiler, Context context, Operand destination, Operand source, int size)
{
const int LargeAlignment = 16;
int alignedSize = size - (size % NativeAlignment);
int largeAlignedTypeSize = size - (size % LargeAlignment);
Debug.Assert(size > 0);
var src = source;
var dest = destination;
Debug.Assert(src.IsMemoryAddress && dest.IsMemoryAddress, context.ToString());
var srcReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var dstReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var tmp = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var tmpLarge = Operand.CreateCPURegister(destination.Type.TypeSystem.BuiltIn.Void, SSE2Register.XMM1);
context.AppendInstruction(X86.Lea, srcReg, src);
context.AppendInstruction(X86.Lea, dstReg, dest);
for (int i = 0; i < largeAlignedTypeSize; i += LargeAlignment)
{
// Large aligned moves allow 128bits to be copied at a time
var memSrc = Operand.CreateMemoryAddress(destination.Type.TypeSystem.BuiltIn.Void, srcReg, i);
var memDest = Operand.CreateMemoryAddress(destination.Type.TypeSystem.BuiltIn.Void, dstReg, i);
context.AppendInstruction(X86.MovUPS, InstructionSize.Size128, tmpLarge, memSrc);
context.AppendInstruction(X86.MovUPS, InstructionSize.Size128, memDest, tmpLarge);
}
for (int i = largeAlignedTypeSize; i < alignedSize; i += NativeAlignment)
{
context.AppendInstruction(X86.Mov, InstructionSize.Size32, tmp, Operand.CreateMemoryAddress(src.Type.TypeSystem.BuiltIn.I4, srcReg, i));
context.AppendInstruction(X86.Mov, InstructionSize.Size32, Operand.CreateMemoryAddress(dest.Type.TypeSystem.BuiltIn.I4, dstReg, i), tmp);
}
for (int i = alignedSize; i < size; i++)
{
context.AppendInstruction(X86.Mov, InstructionSize.Size8, tmp, Operand.CreateMemoryAddress(src.Type.TypeSystem.BuiltIn.I4, srcReg, i));
context.AppendInstruction(X86.Mov, InstructionSize.Size8, Operand.CreateMemoryAddress(dest.Type.TypeSystem.BuiltIn.I4, dstReg, i), tmp);
}
}
/// <summary>
/// Create platform compound move.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="destination">The destination.</param>
/// <param name="source">The source.</param>
/// <param name="size">The size.</param>
public override void InsertCompoundMoveInstruction(BaseMethodCompiler compiler, Context context, Operand destination, Operand source, int size)
{
Debug.Assert(size > 0 && size % 4 == 0);
var src = source;
var dest = destination;
Debug.Assert(src.IsMemoryAddress && dest.IsMemoryAddress);
var srcReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var dstReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var tmp = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
context.AppendInstruction(X86.Lea, srcReg, src);
context.AppendInstruction(X86.Lea, dstReg, dest);
for (int i = 0; i < size; i += 4)
{
context.AppendInstruction(X86.Mov, tmp, Operand.CreateMemoryAddress(src.Type.TypeSystem.BuiltIn.I4, srcReg, i));
context.AppendInstruction(X86.Mov, Operand.CreateMemoryAddress(dest.Type.TypeSystem.BuiltIn.I4, dstReg, i), tmp);
}
}
/// <summary>
/// Create platform compound move.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="destination">The destination.</param>
/// <param name="source">The source.</param>
/// <param name="size">The size.</param>
public override void InsertCompoundMoveInstruction(BaseMethodCompiler compiler, Context context, Operand destination, Operand source, int size)
{
int alignedSize = size - (size % NativeAlignment);
Debug.Assert(size > 0);
var src = source;
var dest = destination;
Debug.Assert(src.IsMemoryAddress && dest.IsMemoryAddress, context.ToString());
var srcReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var dstReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var tmp = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
context.AppendInstruction(X86.Lea, srcReg, src);
context.AppendInstruction(X86.Lea, dstReg, dest);
for (int i = 0; i < alignedSize; i += NativeAlignment)
{
context.AppendInstruction(X86.Mov, InstructionSize.Size32, tmp, Operand.CreateMemoryAddress(src.Type.TypeSystem.BuiltIn.I4, srcReg, i));
context.AppendInstruction(X86.Mov, InstructionSize.Size32, Operand.CreateMemoryAddress(dest.Type.TypeSystem.BuiltIn.I4, dstReg, i), tmp);
}
for (int i = alignedSize; i < size; i++)
{
context.AppendInstruction(X86.Mov, InstructionSize.Size8, tmp, Operand.CreateMemoryAddress(src.Type.TypeSystem.BuiltIn.I4, srcReg, i));
context.AppendInstruction(X86.Mov, InstructionSize.Size8, Operand.CreateMemoryAddress(dest.Type.TypeSystem.BuiltIn.I4, dstReg, i), tmp);
}
}
/// <summary>
/// Create platform compound move.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="destination">The destination.</param>
/// <param name="source">The source.</param>
/// <param name="size">The size.</param>
public override void InsertCompoundMoveInstruction(BaseMethodCompiler compiler, Context context, Operand destination, Operand source, int size)
{
Debug.Assert(size > 0);
Debug.Assert(source.IsMemoryAddress && destination.IsMemoryAddress);
const int LargeAlignment = 16;
int alignedSize = size - (size % NativeAlignment);
int largeAlignedTypeSize = size - (size % LargeAlignment);
var srcReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var dstReg = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var tmp = compiler.CreateVirtualRegister(destination.Type.TypeSystem.BuiltIn.I4);
var tmpLarge = Operand.CreateCPURegister(destination.Type.TypeSystem.BuiltIn.Void, SSE2Register.XMM1);
context.AppendInstruction(X86.Lea, srcReg, source);
context.AppendInstruction(X86.Lea, dstReg, destination);
for (int i = 0; i < largeAlignedTypeSize; i += LargeAlignment)
{
// Large aligned moves allow 128bits to be copied at a time
var index = Operand.CreateConstant(destination.Type.TypeSystem.BuiltIn.I4, i);
context.AppendInstruction(X86.MovupsLoad, InstructionSize.Size128, tmpLarge, srcReg, index);
context.AppendInstruction(X86.MovupsStore, InstructionSize.Size128, null, dstReg, index, tmpLarge);
}
for (int i = largeAlignedTypeSize; i < alignedSize; i += NativeAlignment)
{
var index = Operand.CreateConstant(destination.Type.TypeSystem.BuiltIn.I4, i);
context.AppendInstruction(X86.MovLoad, InstructionSize.Size32, tmp, srcReg, index);
context.AppendInstruction(X86.MovStore, InstructionSize.Size32, null, dstReg, index, tmp);
}
for (int i = alignedSize; i < size; i++)
{
var index = Operand.CreateConstant(destination.Type.TypeSystem.BuiltIn.I4, i);
context.AppendInstruction(X86.MovLoad, InstructionSize.Size8, tmp, srcReg, index);
context.AppendInstruction(X86.MovStore, InstructionSize.Size8, null, dstReg, index, tmp);
}
}