本文整理汇总了C#中Mosa.Compiler.Framework.BaseMethodCompiler.AllocateVirtualRegisterOrStackSlot方法的典型用法代码示例。如果您正苦于以下问题：C# BaseMethodCompiler.AllocateVirtualRegisterOrStackSlot方法的具体用法？C# BaseMethodCompiler.AllocateVirtualRegisterOrStackSlot怎么用？C# BaseMethodCompiler.AllocateVirtualRegisterOrStackSlot使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Mosa.Compiler.Framework.BaseMethodCompiler的用法示例。
在下文中一共展示了BaseMethodCompiler.AllocateVirtualRegisterOrStackSlot方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: PatchInvoke
private static void PatchInvoke(BaseMethodCompiler methodCompiler)
{
// check if instance is null (if so, it's a static call to the methodPointer)
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 size = methodCompiler.Architecture.NativeInstructionSize;
bool withReturn = (methodCompiler.Method.Signature.ReturnType == null) ? false : !methodCompiler.Method.Signature.ReturnType.IsVoid;
Context b0 = new Context(CreateMethodStructure(methodCompiler, false));
Context b1 = new Context(methodCompiler.BasicBlocks.CreateBlock());
Context b2 = new Context(methodCompiler.BasicBlocks.CreateBlock());
Context b3 = new Context(methodCompiler.BasicBlocks.CreateBlock());
Operand[] vrs = new Operand[methodCompiler.Parameters.Length];
for (int i = 0; i < methodCompiler.Parameters.Length; i++)
{
vrs[i] = methodCompiler.VirtualRegisters.Allocate(methodCompiler.Parameters[i].Type);
//fixme: handle structs
var loadInstruction = BaseMethodCompilerStage.GetLoadInstruction(vrs[i].Type);
var moveSize = BaseMethodCompilerStage.GetInstructionSize(vrs[i].Type);
b0.AppendInstruction(loadInstruction, moveSize, vrs[i], methodCompiler.StackFrame, methodCompiler.Parameters[i]);
}
Operand thisOperand = vrs[0];
Operand opMethod = methodCompiler.VirtualRegisters.Allocate(methodCompiler.TypeSystem.BuiltIn.U4);
Operand opInstance = methodCompiler.VirtualRegisters.Allocate(thisOperand.Type);
Operand opCompare = methodCompiler.VirtualRegisters.Allocate(methodCompiler.TypeSystem.BuiltIn.I4);
Operand opReturn = withReturn ? methodCompiler.AllocateVirtualRegisterOrStackSlot(methodCompiler.Method.Signature.ReturnType) : null;
Operand c0 = Operand.CreateConstant(methodCompiler.TypeSystem, 0);
b0.AppendInstruction(IRInstruction.LoadInteger, size, opMethod, thisOperand, methodPointerOffsetOperand);
b0.AppendInstruction(IRInstruction.LoadInteger, size, opInstance, thisOperand, instanceOffsetOperand);
b0.AppendInstruction(IRInstruction.CompareInteger, ConditionCode.Equal, opCompare, opInstance, c0);
b0.AppendInstruction(IRInstruction.CompareIntegerBranch, ConditionCode.Equal, null, opCompare, c0);
b0.AddBranchTarget(b2.Block);
b0.AppendInstruction(IRInstruction.Jmp, b1.Block);
// no instance
b1.AppendInstruction(IRInstruction.Call, opReturn, opMethod);
b1.InvokeMethod = methodCompiler.Method;
for (int i = 1; i < methodCompiler.Parameters.Length; i++)
b1.AddOperand(vrs[i]);
if (withReturn)
b1.SetResult(0, opReturn);
b1.AppendInstruction(IRInstruction.Jmp, b3.Block);
// instance
b2.AppendInstruction(IRInstruction.Call, opReturn, opMethod);
b2.InvokeMethod = methodCompiler.Method;
b2.AddOperand(opInstance);
for (int i = 1; i < methodCompiler.Parameters.Length; i++)
b2.AddOperand(vrs[i]);
if (withReturn)
b2.SetResult(0, opReturn);
b2.AppendInstruction(IRInstruction.Jmp, b3.Block);
// return
b3.AppendInstruction(IRInstruction.Return, methodCompiler.BasicBlocks.EpilogueBlock);
if (withReturn)
b3.SetOperand(0, opReturn);
}