private static List <string> BuildCodeLines(DecompiledMethod root, out int refs)
{
List <string> codeLines = new List <string>();
refs = 0;
int idx = 0;
int refId = 0;
foreach (var assemblyCode in root.Instructions)
{
if (assemblyCode.RefAddress > 0 &&
assemblyCode.RefAddress >= root.Instructions.First().Address&&
assemblyCode.RefAddress <= root.Instructions.Last().Address)
{
refId = 0;
for (refId = 0; refId < assemblyCode.RefIds.Length; refId++)
{
if (assemblyCode.RefIds[refId] <= 0)
{
assemblyCode.RefIds[refId] = idx;
break;
}
}
int innerIdx = 0;
foreach (var innerAssemblyCode in root.Instructions)
{
if (innerAssemblyCode.Address >= assemblyCode.RefAddress)
{
int start = idx;
int end = innerIdx;
if (idx > innerIdx)
{
start = innerIdx;
end = idx;
}
for (int i = start; i <= end; i++)
{
root.Instructions[i].RefIds[refId] = idx;
}
break;
}
innerIdx++;
}
refs++;
}
StringBuilder argBuilder = new StringBuilder();
foreach (var arg in assemblyCode.Arguments)
{
argBuilder.Append(arg.Value + ",");
}
if (argBuilder.Length > 1)
{
argBuilder.Remove(argBuilder.Length - 1, 1);
}
codeLines.Add($"{assemblyCode.Address.ToString("X")} `{assemblyCode.Instruction}` {argBuilder.ToString()}");
idx++;
}
return(codeLines);
}
private static (int x, int y) PrintCode(string title, int x, int y, DecompiledMethod root)
{
XConsole.SetCursorPosition(x, y);
XConsole.WriteLine(title);
XConsole.DrawSeparator(10, x, y + 1);
var codeLines = BuildCodeLines(root, out var refs);
XConsole.SetCursorPosition(x + refs, y + 2);
int newY = y + 2;
int idx = 0;
AssemblyInstruction prevInstruction = null;
foreach (var assemblyCode in root.Instructions)
{
string prefix = null;
bool isStartEnd = false;
for (int r = refs - 1; r >= 0; r--)
{
if (assemblyCode.RefIds[r] > 0)
{
AssemblyInstruction nextInstruction = null;
if (idx + 1 < root.Instructions.Count)
{
nextInstruction = root.Instructions[idx + 1];
}
//
// We are here since we have a jump overlap or a simple jump target
// Check for jump overlaps.
//
//
// Prev instruction has different ref inentifier so it means we have to end
// our connection here.
//
if (prevInstruction != null && prevInstruction.RefIds[r] != assemblyCode.RefIds[r])
{
prefix += XConsole.ConsoleBorderStyle.TopLeft.ToString();
prefix += XConsole.ConsoleBorderStyle.TopBottom.ToString();
isStartEnd = true;
}
//
// Next instruction has a different ID we have to break the connection here.
//
else if (nextInstruction != null && nextInstruction.RefIds[r] != assemblyCode.RefIds[r])
{
prefix += XConsole.ConsoleBorderStyle.BottomLeft.ToString();
prefix += XConsole.ConsoleBorderStyle.TopBottom.ToString();
isStartEnd = true;
}
else if (idx + 1 >= root.Instructions.Count)
{
prefix += XConsole.ConsoleBorderStyle.BottomLeft.ToString();
prefix += XConsole.ConsoleBorderStyle.TopBottom.ToString();
}
//
// Contrinue the line.
//
else
{
if (isStartEnd)
{
prefix += XConsole.ConsoleBorderStyle.SeparatorBoth.ToString();
prefix += XConsole.ConsoleBorderStyle.TopBottom.ToString();
}
else
{
prefix += XConsole.ConsoleBorderStyle.Left.ToString() + " ";
}
}
}
//
// We have a start instruction and we have the id so lets draw the line out
// and go up or down.
//
// -------
//
else if (isStartEnd)
{
prefix += XConsole.ConsoleBorderStyle.TopBottom.ToString();
prefix += XConsole.ConsoleBorderStyle.TopBottom.ToString();
}
else
{
prefix += " ";
}
}
codeLines[idx] = "`" + prefix + "`" + codeLines[idx];
XConsole.SetCursorPosition(x, newY);
XConsole.WriteLine(codeLines[idx]);
newY++;
idx++;
prevInstruction = assemblyCode;
}
return(XConsole.CursorLeft, XConsole.CursorTop);
}
public static double Measure(Action a, BenchmarkOptions options = default(BenchmarkOptions))
{
if (options == default(BenchmarkOptions))
{
options = BenchmarkOptions.Default();
}
var decompiler = new JitCodeDecompiler();
var warmupCount = options.WarmUpCount;
var runCount = options.RunCount;
DecompiledMethod before = null;
if (options.Decompile)
{
a();
before = decompiler.DecompileMethod(a.Method, options.DecompileMethodName);
}
//
// Quick Warm Up.
//
XConsole.WriteLine("Quick Benchmark:");
XConsole.WriteLine($" [1] Warm Up ...({warmupCount})");
for (int i = 0; i < warmupCount; i++)
{
a();
}
Span <double> res = stackalloc double[runCount];
var initialMemory = GC.GetTotalAllocatedBytes();
XConsole.WriteLine($" [2] Running ...({runCount})");
for (int i = 0; i < runCount; i++)
{
Stopwatch w = new Stopwatch();
w.Start();
{
a();
}
w.Stop();
res[i] = w.ElapsedMilliseconds;
}
var memoryAfterRuns = GC.GetTotalAllocatedBytes();
double sum = 0;
for (int i = 0; i < res.Length; i++)
{
XConsole.WriteLine($" [3-{i}] Took: `{res[i]}` ms");
sum += res[i];
}
var cursonLeft = XConsole.CursorLeft;
var mean = sum / runCount;
var stdDev = StdDev(res, mean);
var totalMemory = memoryAfterRuns - initialMemory;
int separatorLen = cursonLeft + 30 + (runCount * 4);
XConsole.DrawSeparator(separatorLen);
XConsole.WriteLine($" Mean -> `{string.Format("{0:N4}", mean)}` ms");
XConsole.WriteLine($" StdDev -> `{string.Format("{0:N4}", stdDev)}` ms");
XConsole.WriteLine($" Total Memory -> `{totalMemory}` b\r\n");
var cursorTop = XConsole.CursorTop;
XConsole.DrawPlot(30, cursorTop - 5, res.ToArray());
if (options.Decompile)
{
XConsole.WriteLine($" Decompiling Method: `{options.DecompileMethodName}`");
cursorTop += 2;
var after = decompiler.DecompileMethod(before.CodeAddress, before.CodeSize, options.DecompileMethodName);
if (before.CodeAddress == after.CodeAddress)
{
XConsole.WriteLine("Captured Only Single Tier");
var coords1 = PrintCode("Tier0", 1, cursorTop + 1, before);
XConsole.SetCursorPosition(0, coords1.y);
}
else
{
var coords1 = PrintCode("Tier0", 1, cursorTop, before);
var coords2 = PrintCode("Tier1", 50, cursorTop, after);
int top = coords1.y > coords2.y ? coords1.y : coords2.y;
XConsole.SetCursorPosition(0, top);
}
}
return(mean);
}