ff53dcf560
* dotnet format style --severity info Some changes were manually reverted. * dotnet format analyzers --serverity info Some changes have been minimally adapted. * Restore a few unused methods and variables * Silence dotnet format IDE0060 warnings * Silence dotnet format IDE0052 warnings * Address or silence dotnet format IDE1006 warnings * Address or silence dotnet format CA2208 warnings * Address dotnet format CA1822 warnings * Address or silence dotnet format CA1069 warnings * Silence CA1806 and CA1834 issues * Address dotnet format CA1401 warnings * Fix new dotnet-format issues after rebase * Address review comments * Address dotnet format CA2208 warnings properly * Fix formatting for switch expressions * Address most dotnet format whitespace warnings * Apply dotnet format whitespace formatting A few of them have been manually reverted and the corresponding warning was silenced * Add previously silenced warnings back I have no clue how these disappeared * Revert formatting changes for OpCodeTable.cs * Enable formatting for a few cases again * Format if-blocks correctly * Enable formatting for a few more cases again * Fix inline comment alignment * Run dotnet format after rebase and remove unused usings - analyzers - style - whitespace * Disable 'prefer switch expression' rule * Add comments to disabled warnings * Remove a few unused parameters * Adjust namespaces * Simplify properties and array initialization, Use const when possible, Remove trailing commas * Start working on disabled warnings * Fix and silence a few dotnet-format warnings again * Address IDE0251 warnings * Address a few disabled IDE0060 warnings * Silence IDE0060 in .editorconfig * Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas" This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e. * dotnet format whitespace after rebase * First dotnet format pass * Remove unnecessary formatting exclusion * Add unsafe dotnet format changes * Change visibility of JitSupportDarwin to internal
757 lines
26 KiB
C#
757 lines
26 KiB
C#
using ARMeilleure.Decoders;
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using ARMeilleure.IntermediateRepresentation;
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using ARMeilleure.Memory;
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using ARMeilleure.Translation;
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using ARMeilleure.Translation.PTC;
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using System;
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using System.Reflection;
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using static ARMeilleure.Instructions.InstEmitHelper;
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using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
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namespace ARMeilleure.Instructions
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{
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static class InstEmitMemoryHelper
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{
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private const int PageBits = 12;
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private const int PageMask = (1 << PageBits) - 1;
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private enum Extension
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{
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Zx,
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Sx32,
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Sx64,
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}
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public static void EmitLoadZx(ArmEmitterContext context, Operand address, int rt, int size)
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{
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EmitLoad(context, address, Extension.Zx, rt, size);
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}
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public static void EmitLoadSx32(ArmEmitterContext context, Operand address, int rt, int size)
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{
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EmitLoad(context, address, Extension.Sx32, rt, size);
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}
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public static void EmitLoadSx64(ArmEmitterContext context, Operand address, int rt, int size)
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{
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EmitLoad(context, address, Extension.Sx64, rt, size);
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}
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private static void EmitLoad(ArmEmitterContext context, Operand address, Extension ext, int rt, int size)
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{
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bool isSimd = IsSimd(context);
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if ((uint)size > (isSimd ? 4 : 3))
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{
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throw new ArgumentOutOfRangeException(nameof(size));
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}
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if (isSimd)
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{
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EmitReadVector(context, address, context.VectorZero(), rt, 0, size);
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}
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else
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{
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EmitReadInt(context, address, rt, size);
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}
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if (!isSimd && !(context.CurrOp is OpCode32 && rt == State.RegisterAlias.Aarch32Pc))
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{
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Operand value = GetInt(context, rt);
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if (ext == Extension.Sx32 || ext == Extension.Sx64)
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{
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OperandType destType = ext == Extension.Sx64 ? OperandType.I64 : OperandType.I32;
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switch (size)
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{
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case 0:
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value = context.SignExtend8(destType, value);
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break;
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case 1:
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value = context.SignExtend16(destType, value);
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break;
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case 2:
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value = context.SignExtend32(destType, value);
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break;
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}
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}
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SetInt(context, rt, value);
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}
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}
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public static void EmitLoadSimd(
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ArmEmitterContext context,
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Operand address,
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Operand vector,
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int rt,
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int elem,
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int size)
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{
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EmitReadVector(context, address, vector, rt, elem, size);
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}
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public static void EmitStore(ArmEmitterContext context, Operand address, int rt, int size)
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{
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bool isSimd = IsSimd(context);
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if ((uint)size > (isSimd ? 4 : 3))
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{
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throw new ArgumentOutOfRangeException(nameof(size));
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}
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if (isSimd)
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{
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EmitWriteVector(context, address, rt, 0, size);
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}
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else
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{
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EmitWriteInt(context, address, rt, size);
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}
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}
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public static void EmitStoreSimd(
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ArmEmitterContext context,
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Operand address,
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int rt,
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int elem,
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int size)
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{
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EmitWriteVector(context, address, rt, elem, size);
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}
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private static bool IsSimd(ArmEmitterContext context)
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{
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return context.CurrOp is IOpCodeSimd &&
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!(context.CurrOp is OpCodeSimdMemMs ||
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context.CurrOp is OpCodeSimdMemSs);
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}
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public static Operand EmitReadInt(ArmEmitterContext context, Operand address, int size)
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{
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Operand temp = context.AllocateLocal(size == 3 ? OperandType.I64 : OperandType.I32);
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Operand lblSlowPath = Label();
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Operand lblEnd = Label();
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Operand physAddr = EmitPtPointerLoad(context, address, lblSlowPath, write: false, size);
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Operand value = default;
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switch (size)
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{
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case 0:
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value = context.Load8(physAddr);
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break;
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case 1:
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value = context.Load16(physAddr);
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break;
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case 2:
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value = context.Load(OperandType.I32, physAddr);
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break;
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case 3:
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value = context.Load(OperandType.I64, physAddr);
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break;
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}
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context.Copy(temp, value);
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if (!context.Memory.Type.IsHostMapped())
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{
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context.Branch(lblEnd);
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context.MarkLabel(lblSlowPath, BasicBlockFrequency.Cold);
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context.Copy(temp, EmitReadIntFallback(context, address, size));
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context.MarkLabel(lblEnd);
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}
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return temp;
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}
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private static void EmitReadInt(ArmEmitterContext context, Operand address, int rt, int size)
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{
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Operand lblSlowPath = Label();
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Operand lblEnd = Label();
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Operand physAddr = EmitPtPointerLoad(context, address, lblSlowPath, write: false, size);
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Operand value = default;
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switch (size)
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{
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case 0:
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value = context.Load8(physAddr);
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break;
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case 1:
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value = context.Load16(physAddr);
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break;
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case 2:
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value = context.Load(OperandType.I32, physAddr);
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break;
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case 3:
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value = context.Load(OperandType.I64, physAddr);
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break;
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}
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SetInt(context, rt, value);
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if (!context.Memory.Type.IsHostMapped())
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{
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context.Branch(lblEnd);
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context.MarkLabel(lblSlowPath, BasicBlockFrequency.Cold);
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EmitReadIntFallback(context, address, rt, size);
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context.MarkLabel(lblEnd);
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}
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}
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public static Operand EmitReadIntAligned(ArmEmitterContext context, Operand address, int size)
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{
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if ((uint)size > 4)
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{
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throw new ArgumentOutOfRangeException(nameof(size));
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}
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Operand physAddr = EmitPtPointerLoad(context, address, default, write: false, size);
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return size switch
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{
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0 => context.Load8(physAddr),
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1 => context.Load16(physAddr),
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2 => context.Load(OperandType.I32, physAddr),
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3 => context.Load(OperandType.I64, physAddr),
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_ => context.Load(OperandType.V128, physAddr),
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};
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}
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private static void EmitReadVector(
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ArmEmitterContext context,
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Operand address,
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Operand vector,
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int rt,
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int elem,
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int size)
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{
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Operand lblSlowPath = Label();
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Operand lblEnd = Label();
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Operand physAddr = EmitPtPointerLoad(context, address, lblSlowPath, write: false, size);
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Operand value = default;
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switch (size)
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{
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case 0:
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value = context.VectorInsert8(vector, context.Load8(physAddr), elem);
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break;
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case 1:
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value = context.VectorInsert16(vector, context.Load16(physAddr), elem);
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break;
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case 2:
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value = context.VectorInsert(vector, context.Load(OperandType.I32, physAddr), elem);
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break;
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case 3:
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value = context.VectorInsert(vector, context.Load(OperandType.I64, physAddr), elem);
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break;
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case 4:
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value = context.Load(OperandType.V128, physAddr);
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break;
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}
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context.Copy(GetVec(rt), value);
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if (!context.Memory.Type.IsHostMapped())
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{
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context.Branch(lblEnd);
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context.MarkLabel(lblSlowPath, BasicBlockFrequency.Cold);
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EmitReadVectorFallback(context, address, vector, rt, elem, size);
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context.MarkLabel(lblEnd);
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}
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}
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private static Operand VectorCreate(ArmEmitterContext context, Operand value)
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{
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return context.VectorInsert(context.VectorZero(), value, 0);
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}
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private static void EmitWriteInt(ArmEmitterContext context, Operand address, int rt, int size)
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{
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Operand lblSlowPath = Label();
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Operand lblEnd = Label();
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Operand physAddr = EmitPtPointerLoad(context, address, lblSlowPath, write: true, size);
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Operand value = GetInt(context, rt);
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if (size < 3 && value.Type == OperandType.I64)
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{
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value = context.ConvertI64ToI32(value);
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}
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switch (size)
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{
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case 0:
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context.Store8(physAddr, value);
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break;
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case 1:
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context.Store16(physAddr, value);
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break;
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case 2:
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context.Store(physAddr, value);
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break;
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case 3:
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context.Store(physAddr, value);
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break;
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}
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if (!context.Memory.Type.IsHostMapped())
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{
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context.Branch(lblEnd);
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context.MarkLabel(lblSlowPath, BasicBlockFrequency.Cold);
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EmitWriteIntFallback(context, address, rt, size);
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context.MarkLabel(lblEnd);
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}
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}
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public static void EmitWriteIntAligned(ArmEmitterContext context, Operand address, Operand value, int size)
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{
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if ((uint)size > 4)
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{
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throw new ArgumentOutOfRangeException(nameof(size));
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}
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Operand physAddr = EmitPtPointerLoad(context, address, default, write: true, size);
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if (size < 3 && value.Type == OperandType.I64)
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{
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value = context.ConvertI64ToI32(value);
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}
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if (size == 0)
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{
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context.Store8(physAddr, value);
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}
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else if (size == 1)
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{
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context.Store16(physAddr, value);
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}
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else
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{
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context.Store(physAddr, value);
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}
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}
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private static void EmitWriteVector(
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ArmEmitterContext context,
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Operand address,
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int rt,
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int elem,
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int size)
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{
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Operand lblSlowPath = Label();
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Operand lblEnd = Label();
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Operand physAddr = EmitPtPointerLoad(context, address, lblSlowPath, write: true, size);
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Operand value = GetVec(rt);
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switch (size)
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{
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case 0:
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context.Store8(physAddr, context.VectorExtract8(value, elem));
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break;
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case 1:
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context.Store16(physAddr, context.VectorExtract16(value, elem));
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break;
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case 2:
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context.Store(physAddr, context.VectorExtract(OperandType.I32, value, elem));
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break;
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case 3:
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context.Store(physAddr, context.VectorExtract(OperandType.I64, value, elem));
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break;
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case 4:
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context.Store(physAddr, value);
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break;
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}
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if (!context.Memory.Type.IsHostMapped())
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{
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context.Branch(lblEnd);
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context.MarkLabel(lblSlowPath, BasicBlockFrequency.Cold);
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EmitWriteVectorFallback(context, address, rt, elem, size);
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context.MarkLabel(lblEnd);
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}
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}
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public static Operand EmitPtPointerLoad(ArmEmitterContext context, Operand address, Operand lblSlowPath, bool write, int size)
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{
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if (context.Memory.Type.IsHostMapped())
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{
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return EmitHostMappedPointer(context, address);
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}
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int ptLevelBits = context.Memory.AddressSpaceBits - PageBits;
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int ptLevelSize = 1 << ptLevelBits;
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int ptLevelMask = ptLevelSize - 1;
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Operand addrRotated = size != 0 ? context.RotateRight(address, Const(size)) : address;
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Operand addrShifted = context.ShiftRightUI(addrRotated, Const(PageBits - size));
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Operand pte = !context.HasPtc
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? Const(context.Memory.PageTablePointer.ToInt64())
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: Const(context.Memory.PageTablePointer.ToInt64(), Ptc.PageTableSymbol);
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Operand pteOffset = context.BitwiseAnd(addrShifted, Const(addrShifted.Type, ptLevelMask));
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if (pteOffset.Type == OperandType.I32)
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{
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pteOffset = context.ZeroExtend32(OperandType.I64, pteOffset);
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}
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pte = context.Load(OperandType.I64, context.Add(pte, context.ShiftLeft(pteOffset, Const(3))));
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if (addrShifted.Type == OperandType.I32)
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{
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addrShifted = context.ZeroExtend32(OperandType.I64, addrShifted);
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}
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// If the VA is out of range, or not aligned to the access size, force PTE to 0 by masking it.
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pte = context.BitwiseAnd(pte, context.ShiftRightSI(context.Add(addrShifted, Const(-(long)ptLevelSize)), Const(63)));
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if (lblSlowPath != default)
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{
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if (write)
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{
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context.BranchIf(lblSlowPath, pte, Const(0L), Comparison.LessOrEqual);
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pte = context.BitwiseAnd(pte, Const(0xffffffffffffUL)); // Ignore any software protection bits. (they are still used by C# memory access)
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}
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else
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{
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pte = context.ShiftLeft(pte, Const(1));
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context.BranchIf(lblSlowPath, pte, Const(0L), Comparison.LessOrEqual);
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pte = context.ShiftRightUI(pte, Const(1));
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}
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}
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else
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{
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// When no label is provided to jump to a slow path if the address is invalid,
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// we do the validation ourselves, and throw if needed.
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Operand lblNotWatched = Label();
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// Is the page currently being tracked for read/write? If so we need to call SignalMemoryTracking.
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context.BranchIf(lblNotWatched, pte, Const(0L), Comparison.GreaterOrEqual, BasicBlockFrequency.Cold);
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// Signal memory tracking. Size here doesn't matter as address is assumed to be size aligned here.
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context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.SignalMemoryTracking)), address, Const(1UL), Const(write ? 1 : 0));
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context.MarkLabel(lblNotWatched);
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pte = context.BitwiseAnd(pte, Const(0xffffffffffffUL)); // Ignore any software protection bits. (they are still used by C# memory access)
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Operand lblNonNull = Label();
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// Skip exception if the PTE address is non-null (not zero).
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context.BranchIfTrue(lblNonNull, pte, BasicBlockFrequency.Cold);
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// The call is not expected to return (it should throw).
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context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.ThrowInvalidMemoryAccess)), address);
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context.MarkLabel(lblNonNull);
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}
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Operand pageOffset = context.BitwiseAnd(address, Const(address.Type, PageMask));
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if (pageOffset.Type == OperandType.I32)
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{
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pageOffset = context.ZeroExtend32(OperandType.I64, pageOffset);
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}
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return context.Add(pte, pageOffset);
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}
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public static Operand EmitHostMappedPointer(ArmEmitterContext context, Operand address)
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{
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if (address.Type == OperandType.I32)
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{
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address = context.ZeroExtend32(OperandType.I64, address);
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}
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if (context.Memory.Type == MemoryManagerType.HostMapped)
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{
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Operand mask = Const(ulong.MaxValue >> (64 - context.Memory.AddressSpaceBits));
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address = context.BitwiseAnd(address, mask);
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}
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Operand baseAddr = !context.HasPtc
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? Const(context.Memory.PageTablePointer.ToInt64())
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: Const(context.Memory.PageTablePointer.ToInt64(), Ptc.PageTableSymbol);
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return context.Add(baseAddr, address);
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}
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private static void EmitReadIntFallback(ArmEmitterContext context, Operand address, int rt, int size)
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{
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SetInt(context, rt, EmitReadIntFallback(context, address, size));
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}
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private static Operand EmitReadIntFallback(ArmEmitterContext context, Operand address, int size)
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{
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MethodInfo info = null;
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switch (size)
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{
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case 0:
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info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadByte));
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break;
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case 1:
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info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt16));
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break;
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case 2:
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info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt32));
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break;
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case 3:
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info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt64));
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break;
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}
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return context.Call(info, address);
|
|
}
|
|
|
|
private static void EmitReadVectorFallback(
|
|
ArmEmitterContext context,
|
|
Operand address,
|
|
Operand vector,
|
|
int rt,
|
|
int elem,
|
|
int size)
|
|
{
|
|
MethodInfo info = null;
|
|
|
|
switch (size)
|
|
{
|
|
case 0:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadByte));
|
|
break;
|
|
case 1:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt16));
|
|
break;
|
|
case 2:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt32));
|
|
break;
|
|
case 3:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadUInt64));
|
|
break;
|
|
case 4:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.ReadVector128));
|
|
break;
|
|
}
|
|
|
|
Operand value = context.Call(info, address);
|
|
|
|
switch (size)
|
|
{
|
|
case 0:
|
|
value = context.VectorInsert8(vector, value, elem);
|
|
break;
|
|
case 1:
|
|
value = context.VectorInsert16(vector, value, elem);
|
|
break;
|
|
case 2:
|
|
value = context.VectorInsert(vector, value, elem);
|
|
break;
|
|
case 3:
|
|
value = context.VectorInsert(vector, value, elem);
|
|
break;
|
|
}
|
|
|
|
context.Copy(GetVec(rt), value);
|
|
}
|
|
|
|
private static void EmitWriteIntFallback(ArmEmitterContext context, Operand address, int rt, int size)
|
|
{
|
|
MethodInfo info = null;
|
|
|
|
switch (size)
|
|
{
|
|
case 0:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteByte));
|
|
break;
|
|
case 1:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteUInt16));
|
|
break;
|
|
case 2:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteUInt32));
|
|
break;
|
|
case 3:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteUInt64));
|
|
break;
|
|
}
|
|
|
|
Operand value = GetInt(context, rt);
|
|
|
|
if (size < 3 && value.Type == OperandType.I64)
|
|
{
|
|
value = context.ConvertI64ToI32(value);
|
|
}
|
|
|
|
context.Call(info, address, value);
|
|
}
|
|
|
|
private static void EmitWriteVectorFallback(
|
|
ArmEmitterContext context,
|
|
Operand address,
|
|
int rt,
|
|
int elem,
|
|
int size)
|
|
{
|
|
MethodInfo info = null;
|
|
|
|
switch (size)
|
|
{
|
|
case 0:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteByte));
|
|
break;
|
|
case 1:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteUInt16));
|
|
break;
|
|
case 2:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteUInt32));
|
|
break;
|
|
case 3:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteUInt64));
|
|
break;
|
|
case 4:
|
|
info = typeof(NativeInterface).GetMethod(nameof(NativeInterface.WriteVector128));
|
|
break;
|
|
}
|
|
|
|
Operand value = default;
|
|
|
|
if (size < 4)
|
|
{
|
|
switch (size)
|
|
{
|
|
case 0:
|
|
value = context.VectorExtract8(GetVec(rt), elem);
|
|
break;
|
|
case 1:
|
|
value = context.VectorExtract16(GetVec(rt), elem);
|
|
break;
|
|
case 2:
|
|
value = context.VectorExtract(OperandType.I32, GetVec(rt), elem);
|
|
break;
|
|
case 3:
|
|
value = context.VectorExtract(OperandType.I64, GetVec(rt), elem);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
value = GetVec(rt);
|
|
}
|
|
|
|
context.Call(info, address, value);
|
|
}
|
|
|
|
private static Operand GetInt(ArmEmitterContext context, int rt)
|
|
{
|
|
return context.CurrOp is OpCode32 ? GetIntA32(context, rt) : GetIntOrZR(context, rt);
|
|
}
|
|
|
|
private static void SetInt(ArmEmitterContext context, int rt, Operand value)
|
|
{
|
|
if (context.CurrOp is OpCode32)
|
|
{
|
|
SetIntA32(context, rt, value);
|
|
}
|
|
else
|
|
{
|
|
SetIntOrZR(context, rt, value);
|
|
}
|
|
}
|
|
|
|
// ARM32 helpers.
|
|
public static Operand GetMemM(ArmEmitterContext context, bool setCarry = true)
|
|
{
|
|
return context.CurrOp switch
|
|
{
|
|
IOpCode32MemRsImm op => GetMShiftedByImmediate(context, op, setCarry),
|
|
IOpCode32MemReg op => GetIntA32(context, op.Rm),
|
|
IOpCode32Mem op => Const(op.Immediate),
|
|
OpCode32SimdMemImm op => Const(op.Immediate),
|
|
_ => throw InvalidOpCodeType(context.CurrOp),
|
|
};
|
|
}
|
|
|
|
private static Exception InvalidOpCodeType(OpCode opCode)
|
|
{
|
|
return new InvalidOperationException($"Invalid OpCode type \"{opCode?.GetType().Name ?? "null"}\".");
|
|
}
|
|
|
|
public static Operand GetMShiftedByImmediate(ArmEmitterContext context, IOpCode32MemRsImm op, bool setCarry)
|
|
{
|
|
Operand m = GetIntA32(context, op.Rm);
|
|
|
|
int shift = op.Immediate;
|
|
|
|
if (shift == 0)
|
|
{
|
|
switch (op.ShiftType)
|
|
{
|
|
case ShiftType.Lsr:
|
|
shift = 32;
|
|
break;
|
|
case ShiftType.Asr:
|
|
shift = 32;
|
|
break;
|
|
case ShiftType.Ror:
|
|
shift = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (shift != 0)
|
|
{
|
|
setCarry &= false;
|
|
|
|
switch (op.ShiftType)
|
|
{
|
|
case ShiftType.Lsl:
|
|
m = InstEmitAluHelper.GetLslC(context, m, setCarry, shift);
|
|
break;
|
|
case ShiftType.Lsr:
|
|
m = InstEmitAluHelper.GetLsrC(context, m, setCarry, shift);
|
|
break;
|
|
case ShiftType.Asr:
|
|
m = InstEmitAluHelper.GetAsrC(context, m, setCarry, shift);
|
|
break;
|
|
case ShiftType.Ror:
|
|
if (op.Immediate != 0)
|
|
{
|
|
m = InstEmitAluHelper.GetRorC(context, m, setCarry, shift);
|
|
}
|
|
else
|
|
{
|
|
m = InstEmitAluHelper.GetRrxC(context, m, setCarry);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return m;
|
|
}
|
|
}
|
|
}
|