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TSR Berry 2023-04-08 01:22:00 +02:00 • committed by Mary
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commit cee7121058
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311
ARMeilleure/Diagnostics/IRDumper.cs
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@ -1,311 +0,0 @@
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ARMeilleure.Diagnostics
{
class IRDumper
{
private const string Indentation = " ";
private int _indentLevel;
private readonly StringBuilder _builder;
private readonly Dictionary<Operand, string> _localNames;
private readonly Dictionary<ulong, string> _symbolNames;
public IRDumper(int indent)
{
_indentLevel = indent;
_builder = new StringBuilder();
_localNames = new Dictionary<Operand, string>();
_symbolNames = new Dictionary<ulong, string>();
}
private void Indent()
{
_builder.EnsureCapacity(_builder.Capacity + _indentLevel * Indentation.Length);
for (int index = 0; index < _indentLevel; index++)
{
_builder.Append(Indentation);
}
}
private void IncreaseIndentation()
{
_indentLevel++;
}
private void DecreaseIndentation()
{
_indentLevel--;
}
private void DumpBlockName(BasicBlock block)
{
_builder.Append("block").Append(block.Index);
}
private void DumpBlockHeader(BasicBlock block)
{
DumpBlockName(block);
if (block.Frequency == BasicBlockFrequency.Cold)
{
_builder.Append(" cold");
}
if (block.SuccessorsCount > 0)
{
_builder.Append(" (");
for (int i = 0; i < block.SuccessorsCount; i++)
{
DumpBlockName(block.GetSuccessor(i));
if (i < block.SuccessorsCount - 1)
{
_builder.Append(", ");
}
}
_builder.Append(')');
}
_builder.Append(':');
}
private void DumpOperand(Operand operand)
{
if (operand == default)
{
_builder.Append("<NULL>");
return;
}
_builder.Append(GetTypeName(operand.Type)).Append(' ');
switch (operand.Kind)
{
case OperandKind.LocalVariable:
if (!_localNames.TryGetValue(operand, out string localName))
{
localName = $"%{_localNames.Count}";
_localNames.Add(operand, localName);
}
_builder.Append(localName);
break;
case OperandKind.Register:
Register reg = operand.GetRegister();
switch (reg.Type)
{
case RegisterType.Flag: _builder.Append('b'); break;
case RegisterType.FpFlag: _builder.Append('f'); break;
case RegisterType.Integer: _builder.Append('r'); break;
case RegisterType.Vector: _builder.Append('v'); break;
}
_builder.Append(reg.Index);
break;
case OperandKind.Constant:
string symbolName = Symbols.Get(operand.Value);
if (symbolName != null && !_symbolNames.ContainsKey(operand.Value))
{
_symbolNames.Add(operand.Value, symbolName);
}
_builder.Append("0x").Append(operand.Value.ToString("X"));
break;
case OperandKind.Memory:
var memOp = operand.GetMemory();
_builder.Append('[');
DumpOperand(memOp.BaseAddress);
if (memOp.Index != default)
{
_builder.Append(" + ");
DumpOperand(memOp.Index);
switch (memOp.Scale)
{
case Multiplier.x2: _builder.Append("*2"); break;
case Multiplier.x4: _builder.Append("*4"); break;
case Multiplier.x8: _builder.Append("*8"); break;
}
}
if (memOp.Displacement != 0)
{
_builder.Append(" + 0x").Append(memOp.Displacement.ToString("X"));
}
_builder.Append(']');
break;
default:
_builder.Append(operand.Type);
break;
}
}
private void DumpNode(ControlFlowGraph cfg, Operation node)
{
for (int index = 0; index < node.DestinationsCount; index++)
{
DumpOperand(node.GetDestination(index));
if (index == node.DestinationsCount - 1)
{
_builder.Append(" = ");
}
else
{
_builder.Append(", ");
}
}
switch (node)
{
case Operation operation:
if (operation.Instruction == Instruction.Phi)
{
PhiOperation phi = operation.AsPhi();
_builder.Append("Phi ");
for (int index = 0; index < phi.SourcesCount; index++)
{
_builder.Append('(');
DumpBlockName(phi.GetBlock(cfg, index));
_builder.Append(": ");
DumpOperand(phi.GetSource(index));
_builder.Append(')');
if (index < phi.SourcesCount - 1)
{
_builder.Append(", ");
}
}
break;
}
bool comparison = false;
_builder.Append(operation.Instruction);
if (operation.Instruction == Instruction.Extended)
{
_builder.Append('.').Append(operation.Intrinsic);
}
else if (operation.Instruction == Instruction.BranchIf ||
operation.Instruction == Instruction.Compare)
{
comparison = true;
}
_builder.Append(' ');
for (int index = 0; index < operation.SourcesCount; index++)
{
Operand source = operation.GetSource(index);
if (index < operation.SourcesCount - 1)
{
DumpOperand(source);
_builder.Append(", ");
}
else if (comparison)
{
_builder.Append((Comparison)source.AsInt32());
}
else
{
DumpOperand(source);
}
}
break;
}
if (_symbolNames.Count == 1)
{
_builder.Append(" ;; ").Append(_symbolNames.First().Value);
}
else if (_symbolNames.Count > 1)
{
_builder.Append(" ;;");
foreach ((ulong value, string name) in _symbolNames)
{
_builder.Append(" 0x").Append(value.ToString("X")).Append(" = ").Append(name);
}
}
// Reset the set of symbols for the next Node we're going to dump.
_symbolNames.Clear();
}
public static string GetDump(ControlFlowGraph cfg)
{
var dumper = new IRDumper(1);
for (BasicBlock block = cfg.Blocks.First; block != null; block = block.ListNext)
{
dumper.Indent();
dumper.DumpBlockHeader(block);
dumper._builder.AppendLine();
dumper.IncreaseIndentation();
for (Operation node = block.Operations.First; node != default; node = node.ListNext)
{
dumper.Indent();
dumper.DumpNode(cfg, node);
dumper._builder.AppendLine();
}
dumper.DecreaseIndentation();
}
return dumper._builder.ToString();
}
private static string GetTypeName(OperandType type)
{
return type switch
{
OperandType.None => "none",
OperandType.I32 => "i32",
OperandType.I64 => "i64",
OperandType.FP32 => "f32",
OperandType.FP64 => "f64",
OperandType.V128 => "v128",
_ => throw new ArgumentException($"Invalid operand type \"{type}\"."),
};
}
}
}