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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /ARMeilleure/CodeGen/Arm64/CodeGenContext.cs
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'ARMeilleure/CodeGen/Arm64/CodeGenContext.cs')
-rw-r--r--ARMeilleure/CodeGen/Arm64/CodeGenContext.cs287
1 files changed, 0 insertions, 287 deletions
diff --git a/ARMeilleure/CodeGen/Arm64/CodeGenContext.cs b/ARMeilleure/CodeGen/Arm64/CodeGenContext.cs
deleted file mode 100644
index 0dd5355f..00000000
--- a/ARMeilleure/CodeGen/Arm64/CodeGenContext.cs
+++ /dev/null
@@ -1,287 +0,0 @@
-using ARMeilleure.CodeGen.Linking;
-using ARMeilleure.CodeGen.RegisterAllocators;
-using ARMeilleure.IntermediateRepresentation;
-using Ryujinx.Common.Memory;
-using System;
-using System.Collections.Generic;
-using System.IO;
-
-namespace ARMeilleure.CodeGen.Arm64
-{
- class CodeGenContext
- {
- private const int BccInstLength = 4;
- private const int CbnzInstLength = 4;
- private const int LdrLitInstLength = 4;
-
- private Stream _stream;
-
- public int StreamOffset => (int)_stream.Length;
-
- public AllocationResult AllocResult { get; }
-
- public Assembler Assembler { get; }
-
- public BasicBlock CurrBlock { get; private set; }
-
- public bool HasCall { get; }
-
- public int CallArgsRegionSize { get; }
- public int FpLrSaveRegionSize { get; }
-
- private readonly Dictionary<BasicBlock, long> _visitedBlocks;
- private readonly Dictionary<BasicBlock, List<(ArmCondition Condition, long BranchPos)>> _pendingBranches;
-
- private struct ConstantPoolEntry
- {
- public readonly int Offset;
- public readonly Symbol Symbol;
- public readonly List<(Operand, int)> LdrOffsets;
-
- public ConstantPoolEntry(int offset, Symbol symbol)
- {
- Offset = offset;
- Symbol = symbol;
- LdrOffsets = new List<(Operand, int)>();
- }
- }
-
- private readonly Dictionary<ulong, ConstantPoolEntry> _constantPool;
-
- private bool _constantPoolWritten;
- private long _constantPoolOffset;
-
- private ArmCondition _jNearCondition;
- private Operand _jNearValue;
-
- private long _jNearPosition;
-
- private readonly bool _relocatable;
-
- public CodeGenContext(AllocationResult allocResult, int maxCallArgs, int blocksCount, bool relocatable)
- {
- _stream = MemoryStreamManager.Shared.GetStream();
-
- AllocResult = allocResult;
-
- Assembler = new Assembler(_stream);
-
- bool hasCall = maxCallArgs >= 0;
-
- HasCall = hasCall;
-
- if (maxCallArgs < 0)
- {
- maxCallArgs = 0;
- }
-
- CallArgsRegionSize = maxCallArgs * 16;
- FpLrSaveRegionSize = hasCall ? 16 : 0;
-
- _visitedBlocks = new Dictionary<BasicBlock, long>();
- _pendingBranches = new Dictionary<BasicBlock, List<(ArmCondition, long)>>();
- _constantPool = new Dictionary<ulong, ConstantPoolEntry>();
-
- _relocatable = relocatable;
- }
-
- public void EnterBlock(BasicBlock block)
- {
- CurrBlock = block;
-
- long target = _stream.Position;
-
- if (_pendingBranches.TryGetValue(block, out var list))
- {
- foreach (var tuple in list)
- {
- _stream.Seek(tuple.BranchPos, SeekOrigin.Begin);
- WriteBranch(tuple.Condition, target);
- }
-
- _stream.Seek(target, SeekOrigin.Begin);
- _pendingBranches.Remove(block);
- }
-
- _visitedBlocks.Add(block, target);
- }
-
- public void JumpTo(BasicBlock target)
- {
- JumpTo(ArmCondition.Al, target);
- }
-
- public void JumpTo(ArmCondition condition, BasicBlock target)
- {
- if (_visitedBlocks.TryGetValue(target, out long offset))
- {
- WriteBranch(condition, offset);
- }
- else
- {
- if (!_pendingBranches.TryGetValue(target, out var list))
- {
- list = new List<(ArmCondition, long)>();
- _pendingBranches.Add(target, list);
- }
-
- list.Add((condition, _stream.Position));
-
- _stream.Seek(BccInstLength, SeekOrigin.Current);
- }
- }
-
- private void WriteBranch(ArmCondition condition, long to)
- {
- int imm = checked((int)(to - _stream.Position));
-
- if (condition != ArmCondition.Al)
- {
- Assembler.B(condition, imm);
- }
- else
- {
- Assembler.B(imm);
- }
- }
-
- public void JumpToNear(ArmCondition condition)
- {
- _jNearCondition = condition;
- _jNearPosition = _stream.Position;
-
- _stream.Seek(BccInstLength, SeekOrigin.Current);
- }
-
- public void JumpToNearIfNotZero(Operand value)
- {
- _jNearValue = value;
- _jNearPosition = _stream.Position;
-
- _stream.Seek(CbnzInstLength, SeekOrigin.Current);
- }
-
- public void JumpHere()
- {
- long currentPosition = _stream.Position;
- long offset = currentPosition - _jNearPosition;
-
- _stream.Seek(_jNearPosition, SeekOrigin.Begin);
-
- if (_jNearValue != default)
- {
- Assembler.Cbnz(_jNearValue, checked((int)offset));
- _jNearValue = default;
- }
- else
- {
- Assembler.B(_jNearCondition, checked((int)offset));
- }
-
- _stream.Seek(currentPosition, SeekOrigin.Begin);
- }
-
- public void ReserveRelocatableConstant(Operand rt, Symbol symbol, ulong value)
- {
- if (!_constantPool.TryGetValue(value, out ConstantPoolEntry cpe))
- {
- cpe = new ConstantPoolEntry(_constantPool.Count * sizeof(ulong), symbol);
- _constantPool.Add(value, cpe);
- }
-
- cpe.LdrOffsets.Add((rt, (int)_stream.Position));
- _stream.Seek(LdrLitInstLength, SeekOrigin.Current);
- }
-
- private long WriteConstantPool()
- {
- if (_constantPoolWritten)
- {
- return _constantPoolOffset;
- }
-
- long constantPoolBaseOffset = _stream.Position;
-
- foreach (ulong value in _constantPool.Keys)
- {
- WriteUInt64(value);
- }
-
- foreach (ConstantPoolEntry cpe in _constantPool.Values)
- {
- foreach ((Operand rt, int ldrOffset) in cpe.LdrOffsets)
- {
- _stream.Seek(ldrOffset, SeekOrigin.Begin);
-
- int absoluteOffset = checked((int)(constantPoolBaseOffset + cpe.Offset));
- int pcRelativeOffset = absoluteOffset - ldrOffset;
-
- Assembler.LdrLit(rt, pcRelativeOffset);
- }
- }
-
- _stream.Seek(constantPoolBaseOffset + _constantPool.Count * sizeof(ulong), SeekOrigin.Begin);
-
- _constantPoolOffset = constantPoolBaseOffset;
- _constantPoolWritten = true;
-
- return constantPoolBaseOffset;
- }
-
- public (byte[], RelocInfo) GetCode()
- {
- long constantPoolBaseOffset = WriteConstantPool();
-
- byte[] code = new byte[_stream.Length];
-
- long originalPosition = _stream.Position;
-
- _stream.Seek(0, SeekOrigin.Begin);
- _stream.Read(code, 0, code.Length);
- _stream.Seek(originalPosition, SeekOrigin.Begin);
-
- RelocInfo relocInfo;
-
- if (_relocatable)
- {
- RelocEntry[] relocs = new RelocEntry[_constantPool.Count];
-
- int index = 0;
-
- foreach (ConstantPoolEntry cpe in _constantPool.Values)
- {
- if (cpe.Symbol.Type != SymbolType.None)
- {
- int absoluteOffset = checked((int)(constantPoolBaseOffset + cpe.Offset));
- relocs[index++] = new RelocEntry(absoluteOffset, cpe.Symbol);
- }
- }
-
- if (index != relocs.Length)
- {
- Array.Resize(ref relocs, index);
- }
-
- relocInfo = new RelocInfo(relocs);
- }
- else
- {
- relocInfo = new RelocInfo(Array.Empty<RelocEntry>());
- }
-
- return (code, relocInfo);
- }
-
- private void WriteUInt64(ulong value)
- {
- _stream.WriteByte((byte)(value >> 0));
- _stream.WriteByte((byte)(value >> 8));
- _stream.WriteByte((byte)(value >> 16));
- _stream.WriteByte((byte)(value >> 24));
- _stream.WriteByte((byte)(value >> 32));
- _stream.WriteByte((byte)(value >> 40));
- _stream.WriteByte((byte)(value >> 48));
- _stream.WriteByte((byte)(value >> 56));
- }
- }
-} \ No newline at end of file