/// <summary>
/// Adds a new <see cref="Instr.Alloc"/>.
/// </summary>
/// <param name="type">The <see cref="Type"/> to allocate space for.</param>
/// <returns>The pointer to the allocated space.</returns>
public Value Alloc(Type type)
{
var ptrType = new Type.Ptr(type);
var resultReg = AllocateRegister(ptrType);
AddInstr(new Instr.Alloc(resultReg));
return(resultReg);
}
public void PointerPointer()
{
var b = GetBuilder();
var intPtr = new Type.Ptr(Type.I32);
var ip = b.Alloc(intPtr);
var i = b.Alloc(Type.I32);
b.Store(ip, i);
b.Store(b.Load(ip), Type.I32.NewValue(123));
b.Ret(b.Load(i));
TestOnAllBackends(b, Type.I32.NewValue(123));
}
public void ModifyParameter()
{
var intPtr = new Type.Ptr(Type.I32);
var b = GetBuilder();
var entry = b.CurrentProc;
var modify = b.DefineProc("modify");
var p = b.DefineParameter(intPtr);
b.Store(p, Type.I32.NewValue(73));
b.Ret();
b.CurrentProc = entry;
var storage = b.Alloc(Type.I32);
b.Store(storage, Type.I32.NewValue(62));
b.Call(modify, new List <Value> {
storage
});
b.Ret(b.Load(storage));
TestOnAllBackends(b, Type.I32.NewValue(73));
}
public void ModifyBigParameter()
{
var intPtr = new Type.Ptr(Type.I64);
var b = GetBuilder(Type.I64);
var entry = b.CurrentProc;
var modify = b.DefineProc("modify");
var p = b.DefineParameter(intPtr);
b.Store(p, Type.I64.NewValue(8_724_105_835));
b.Ret();
b.CurrentProc = entry;
var storage = b.Alloc(Type.I64);
b.Store(storage, Type.I64.NewValue(1_176_864_900));
b.Call(modify, new List <Value> {
storage
});
b.Ret(b.Load(storage));
TestOnAllBackends <Func <Int64> >(b, Type.I64.NewValue(8_724_105_835));
}
/// <summary>
/// Initializes a new <see cref="Global"/>.
/// </summary>
/// <param name="name">The name of the global symbol.</param>
/// <param name="type">The <see cref="Type"/> of the global symbol.</param>
public Global(string name, Type type)
{
Name = name;
Type = new Type.Ptr(type);
}