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Add support for guest Fz (Fpcr) mode through host Ftz and Daz (Mxcsr) modes (fast paths). (#1630)

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* Add support for guest Fz (Fpcr) mode through host Ftz and Daz (Mxcsr) modes (fast paths).

* Ptc.InternalVersion = 1630

* Nits.

* Address comments.

* Update Ptc.cs

* Address comment.
This commit is contained in:
LDj3SNuD 2020-12-07 10:37:07 +01:00 committed by GitHub
parent 668720b088
commit 567ea726e1
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GPG Key ID: 4AEE18F83AFDEB23
14 changed files with 221 additions and 27 deletions
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14
ARMeilleure/CodeGen/X86/Assembler.cs
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@ -72,7 +72,7 @@ namespace ARMeilleure.CodeGen.X86
{
_instTable = new InstructionInfo[(int)X86Instruction.Count];
// Name RM/R RM/I8 RM/I32 R/I64 R/RM Flags
// Name RM/R RM/I8 RM/I32 R/I64 R/RM Flags
Add(X86Instruction.Add, new InstructionInfo(0x00000001, 0x00000083, 0x00000081, BadOp, 0x00000003, InstructionFlags.None));
Add(X86Instruction.Addpd, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f58, InstructionFlags.Vex | InstructionFlags.Prefix66));
Add(X86Instruction.Addps, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f58, InstructionFlags.Vex));
@ -131,6 +131,7 @@ namespace ARMeilleure.CodeGen.X86
Add(X86Instruction.Imul128, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x050000f7, InstructionFlags.None));
Add(X86Instruction.Insertps, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x000f3a21, InstructionFlags.Vex | InstructionFlags.Prefix66));
Add(X86Instruction.Jmp, new InstructionInfo(0x040000ff, BadOp, BadOp, BadOp, BadOp, InstructionFlags.None));
Add(X86Instruction.Ldmxcsr, new InstructionInfo(0x02000fae, BadOp, BadOp, BadOp, BadOp, InstructionFlags.Vex));
Add(X86Instruction.Lea, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x0000008d, InstructionFlags.None));
Add(X86Instruction.Maxpd, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f5f, InstructionFlags.Vex | InstructionFlags.Prefix66));
Add(X86Instruction.Maxps, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f5f, InstructionFlags.Vex));
@ -257,6 +258,7 @@ namespace ARMeilleure.CodeGen.X86
Add(X86Instruction.Sqrtps, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f51, InstructionFlags.Vex));
Add(X86Instruction.Sqrtsd, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f51, InstructionFlags.Vex | InstructionFlags.PrefixF2));
Add(X86Instruction.Sqrtss, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f51, InstructionFlags.Vex | InstructionFlags.PrefixF3));
Add(X86Instruction.Stmxcsr, new InstructionInfo(0x03000fae, BadOp, BadOp, BadOp, BadOp, InstructionFlags.Vex));
Add(X86Instruction.Sub, new InstructionInfo(0x00000029, 0x05000083, 0x05000081, BadOp, 0x0000002b, InstructionFlags.None));
Add(X86Instruction.Subpd, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f5c, InstructionFlags.Vex | InstructionFlags.Prefix66));
Add(X86Instruction.Subps, new InstructionInfo(BadOp, BadOp, BadOp, BadOp, 0x00000f5c, InstructionFlags.Vex));
@ -526,6 +528,11 @@ namespace ARMeilleure.CodeGen.X86
WriteInstruction(dest, null, OperandType.None, X86Instruction.Jmp);
}
public void Ldmxcsr(Operand dest)
{
WriteInstruction(dest, null, OperandType.I32, X86Instruction.Ldmxcsr);
}
public void Lea(Operand dest, Operand source, OperandType type)
{
WriteInstruction(dest, source, type, X86Instruction.Lea);
@ -796,6 +803,11 @@ namespace ARMeilleure.CodeGen.X86
WriteOpCode(dest, null, null, OperandType.None, info.Flags, info.OpRRM | (int)condition);
}
public void Stmxcsr(Operand dest)
{
WriteInstruction(dest, null, OperandType.I32, X86Instruction.Stmxcsr);
}
public void Sub(Operand dest, Operand source, OperandType type)
{
WriteInstruction(dest, source, type, X86Instruction.Sub);

34
ARMeilleure/CodeGen/X86/CodeGenerator.cs
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@ -250,6 +250,40 @@ namespace ARMeilleure.CodeGen.X86
break;
}
case IntrinsicType.Mxcsr:
{
Operand offset = operation.GetSource(0);
Operand bits = operation.GetSource(1);
Debug.Assert(offset.Kind == OperandKind.Constant && bits.Kind == OperandKind.Constant);
Debug.Assert(offset.Type == OperandType.I32 && bits.Type == OperandType.I32);
int offs = offset.AsInt32() + context.CallArgsRegionSize;
Operand rsp = Register(X86Register.Rsp);
MemoryOperand memOp = MemoryOp(OperandType.I32, rsp, null, Multiplier.x1, offs);
Debug.Assert(HardwareCapabilities.SupportsSse || HardwareCapabilities.SupportsVexEncoding);
context.Assembler.Stmxcsr(memOp);
if (intrinOp.Intrinsic == Intrinsic.X86Mxcsrmb)
{
context.Assembler.Or(memOp, bits, OperandType.I32);
}
else /* if (intrinOp.Intrinsic == Intrinsic.X86Mxcsrub) */
{
Operand notBits = Const(~bits.AsInt32());
context.Assembler.And(memOp, notBits, OperandType.I32);
}
context.Assembler.Ldmxcsr(memOp);
break;
}
case IntrinsicType.PopCount:
{
Operand dest = operation.Destination;

2
ARMeilleure/CodeGen/X86/IntrinsicTable.cs
View File

@ -76,6 +76,8 @@ namespace ARMeilleure.CodeGen.X86
Add(Intrinsic.X86Mulps, new IntrinsicInfo(X86Instruction.Mulps, IntrinsicType.Binary));
Add(Intrinsic.X86Mulsd, new IntrinsicInfo(X86Instruction.Mulsd, IntrinsicType.Binary));
Add(Intrinsic.X86Mulss, new IntrinsicInfo(X86Instruction.Mulss, IntrinsicType.Binary));
Add(Intrinsic.X86Mxcsrmb, new IntrinsicInfo(X86Instruction.None, IntrinsicType.Mxcsr)); // Mask bits.
Add(Intrinsic.X86Mxcsrub, new IntrinsicInfo(X86Instruction.None, IntrinsicType.Mxcsr)); // Unmask bits.
Add(Intrinsic.X86Paddb, new IntrinsicInfo(X86Instruction.Paddb, IntrinsicType.Binary));
Add(Intrinsic.X86Paddd, new IntrinsicInfo(X86Instruction.Paddd, IntrinsicType.Binary));
Add(Intrinsic.X86Paddq, new IntrinsicInfo(X86Instruction.Paddq, IntrinsicType.Binary));

1
ARMeilleure/CodeGen/X86/IntrinsicType.cs
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@ -3,6 +3,7 @@ namespace ARMeilleure.CodeGen.X86
enum IntrinsicType
{
Comis_,
Mxcsr,
PopCount,
Unary,
UnaryToGpr,

10
ARMeilleure/CodeGen/X86/PreAllocator.cs
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@ -114,6 +114,16 @@ namespace ARMeilleure.CodeGen.X86
node = HandleVectorInsert8(block.Operations, node, operation);
}
break;
case Instruction.Extended:
IntrinsicOperation intrinOp = (IntrinsicOperation)operation;
if (intrinOp.Intrinsic == Intrinsic.X86Mxcsrmb || intrinOp.Intrinsic == Intrinsic.X86Mxcsrub)
{
int stackOffset = stackAlloc.Allocate(OperandType.I32);
operation.SetSources(new Operand[] { Const(stackOffset), operation.GetSource(0) });
}
break;
}
}
}

3
ARMeilleure/CodeGen/X86/X86Instruction.cs
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@ -2,6 +2,7 @@ namespace ARMeilleure.CodeGen.X86
{
enum X86Instruction
{
None,
Add,
Addpd,
Addps,
@ -60,6 +61,7 @@ namespace ARMeilleure.CodeGen.X86
Imul128,
Insertps,
Jmp,
Ldmxcsr,
Lea,
Maxpd,
Maxps,
@ -186,6 +188,7 @@ namespace ARMeilleure.CodeGen.X86
Sqrtps,
Sqrtsd,
Sqrtss,
Stmxcsr,
Sub,
Subpd,
Subps,

111
ARMeilleure/Instructions/InstEmitSimdArithmetic.cs
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@ -380,15 +380,21 @@ namespace ARMeilleure.Instructions
public static void Faddp_V(ArmEmitterContext context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
if (Optimizations.FastFP && Optimizations.UseSse41)
{
EmitSse2VectorPairwiseOpF(context, (op1, op2) =>
{
IOpCodeSimd op = (IOpCodeSimd)context.CurrOp;
return EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
IOpCodeSimd op = (IOpCodeSimd)context.CurrOp;
Intrinsic addInst = (op.Size & 1) == 0 ? Intrinsic.X86Addps : Intrinsic.X86Addpd;
Intrinsic addInst = (op.Size & 1) == 0 ? Intrinsic.X86Addps : Intrinsic.X86Addpd;
return context.AddIntrinsic(addInst, op1, op2);
return context.AddIntrinsic(addInst, op1, op2);
}, scalar: false, op1, op2);
}, scalar: false, op1, op2);
});
}
else
@ -479,7 +485,10 @@ namespace ARMeilleure.Instructions
{
EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
}, scalar: true, op1, op2);
}, scalar: true);
}
else
@ -497,7 +506,10 @@ namespace ARMeilleure.Instructions
{
EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
}, scalar: false, op1, op2);
}, scalar: false);
}
else
@ -583,7 +595,10 @@ namespace ARMeilleure.Instructions
{
return EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
}, scalar: false, op1, op2);
}, scalar: false, op1, op2);
});
}
@ -604,7 +619,10 @@ namespace ARMeilleure.Instructions
{
return EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: true);
}, scalar: false, op1, op2);
}, scalar: false, op1, op2);
});
}
@ -623,7 +641,10 @@ namespace ARMeilleure.Instructions
{
EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
}, scalar: true, op1, op2);
}, scalar: true);
}
else
@ -641,7 +662,10 @@ namespace ARMeilleure.Instructions
{
EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
}, scalar: false, op1, op2);
}, scalar: false);
}
else
@ -727,7 +751,10 @@ namespace ARMeilleure.Instructions
{
return EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
}, scalar: false, op1, op2);
}, scalar: false, op1, op2);
});
}
@ -748,7 +775,10 @@ namespace ARMeilleure.Instructions
{
return EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: false);
}, scalar: false, op1, op2);
}, scalar: false, op1, op2);
});
}
@ -3360,6 +3390,53 @@ namespace ARMeilleure.Instructions
}
}
public static Operand EmitSseOrAvxHandleFzModeOpF(
ArmEmitterContext context,
Func2I emit,
bool scalar,
Operand n = null,
Operand m = null)
{
Operand nCopy = n ?? context.Copy(GetVec(((OpCodeSimdReg)context.CurrOp).Rn));
Operand mCopy = m ?? context.Copy(GetVec(((OpCodeSimdReg)context.CurrOp).Rm));
EmitSseOrAvxEnterFtzAndDazModesOpF(context, out Operand isTrue);
Operand res = emit(nCopy, mCopy);
EmitSseOrAvxExitFtzAndDazModesOpF(context, isTrue);
if (n != null || m != null)
{
return res;
}
int sizeF = ((IOpCodeSimd)context.CurrOp).Size & 1;
if (sizeF == 0)
{
if (scalar)
{
res = context.VectorZeroUpper96(res);
}
else if (((OpCodeSimdReg)context.CurrOp).RegisterSize == RegisterSize.Simd64)
{
res = context.VectorZeroUpper64(res);
}
}
else /* if (sizeF == 1) */
{
if (scalar)
{
res = context.VectorZeroUpper64(res);
}
}
context.Copy(GetVec(((OpCodeSimdReg)context.CurrOp).Rd), res);
return null;
}
private static Operand EmitSse2VectorMaxMinOpF(ArmEmitterContext context, Operand n, Operand m, bool isMax)
{
IOpCodeSimd op = (IOpCodeSimd)context.CurrOp;
@ -3419,7 +3496,10 @@ namespace ARMeilleure.Instructions
Operand res = EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: isMaxNum);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: isMaxNum);
}, scalar: scalar, op1, op2);
}, scalar: scalar, nCopy, mCopy);
if (n != null || m != null)
@ -3454,7 +3534,10 @@ namespace ARMeilleure.Instructions
Operand res = EmitSse41ProcessNaNsOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: isMaxNum);
return EmitSseOrAvxHandleFzModeOpF(context, (op1, op2) =>
{
return EmitSse2VectorMaxMinOpF(context, op1, op2, isMax: isMaxNum);
}, scalar: scalar, op1, op2);
}, scalar: scalar, nCopy, mCopy);
if (n != null || m != null)

33
ARMeilleure/Instructions/InstEmitSimdHelper.cs
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@ -1189,6 +1189,39 @@ namespace ARMeilleure.Instructions
}
}
[Flags]
public enum Mxcsr
{
Ftz = 1 << 15, // Flush To Zero.
Um = 1 << 11, // Underflow Mask.
Dm = 1 << 8, // Denormal Mask.
Daz = 1 << 6 // Denormals Are Zero.
}
public static void EmitSseOrAvxEnterFtzAndDazModesOpF(ArmEmitterContext context, out Operand isTrue)
{
isTrue = context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz)));
Operand lblTrue = Label();
context.BranchIfFalse(lblTrue, isTrue);
context.AddIntrinsicNoRet(Intrinsic.X86Mxcsrmb, Const((int)(Mxcsr.Ftz | Mxcsr.Um | Mxcsr.Dm | Mxcsr.Daz)));
context.MarkLabel(lblTrue);
}
public static void EmitSseOrAvxExitFtzAndDazModesOpF(ArmEmitterContext context, Operand isTrue = null)
{
isTrue ??= context.Call(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz)));
Operand lblTrue = Label();
context.BranchIfFalse(lblTrue, isTrue);
context.AddIntrinsicNoRet(Intrinsic.X86Mxcsrub, Const((int)(Mxcsr.Ftz | Mxcsr.Daz)));
context.MarkLabel(lblTrue);
}
public enum CmpCondition
{
// Legacy Sse.

11
ARMeilleure/Instructions/NativeInterface.cs
View File

@ -78,6 +78,11 @@ namespace ARMeilleure.Instructions
return (ulong)GetContext().Fpcr;
}
public static bool GetFpcrFz()
{
return (GetContext().Fpcr & FPCR.Fz) != 0;
}
public static ulong GetFpsr()
{
return (ulong)GetContext().Fpsr;
@ -85,7 +90,7 @@ namespace ARMeilleure.Instructions
public static uint GetFpscr()
{
var context = GetContext();
ExecutionContext context = GetContext();
return (uint)(context.Fpsr & FPSR.A32Mask & ~FPSR.Nzcv) |
(uint)(context.Fpcr & FPCR.A32Mask);
@ -143,7 +148,7 @@ namespace ARMeilleure.Instructions
public static void SetFpscr(uint fpscr)
{
var context = GetContext();
ExecutionContext context = GetContext();
context.Fpsr = FPSR.A32Mask & (FPSR)fpscr;
context.Fpcr = FPCR.A32Mask & (FPCR)fpscr;
@ -250,7 +255,7 @@ namespace ARMeilleure.Instructions
{
Statistics.PauseTimer();
var context = GetContext();
ExecutionContext context = GetContext();
context.CheckInterrupt();

2
ARMeilleure/IntermediateRepresentation/Intrinsic.cs
View File

@ -65,6 +65,8 @@ namespace ARMeilleure.IntermediateRepresentation
X86Mulps,
X86Mulsd,
X86Mulss,
X86Mxcsrmb,
X86Mxcsrub,
X86Paddb,
X86Paddd,
X86Paddq,

1
ARMeilleure/Translation/Delegates.cs
View File

@ -109,6 +109,7 @@ namespace ARMeilleure.Translation
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetCtrEl0)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetDczidEl0)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcr)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpcrFz)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpscr))); // A32 only.
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFpsr)));
SetDelegateInfo(typeof(NativeInterface).GetMethod(nameof(NativeInterface.GetFunctionAddress)));

5
ARMeilleure/Translation/EmitterContext.cs
View File

@ -573,6 +573,11 @@ namespace ARMeilleure.Translation
return Add(intrin, Local(OperandType.I64), args);
}
public void AddIntrinsicNoRet(Intrinsic intrin, params Operand[] args)
{
Add(intrin, null, args);
}
private Operand Add(Intrinsic intrin, Operand dest, params Operand[] sources)
{
NewNextBlockIfNeeded();

2
ARMeilleure/Translation/PTC/Ptc.cs
View File

@ -21,7 +21,7 @@ namespace ARMeilleure.Translation.PTC
{
private const string HeaderMagic = "PTChd";
private const int InternalVersion = 1758; //! To be incremented manually for each change to the ARMeilleure project.
private const int InternalVersion = 1631; //! To be incremented manually for each change to the ARMeilleure project.
private const string ActualDir = "0";
private const string BackupDir = "1";

19
Ryujinx.Tests/Cpu/CpuTest.cs
View File

@ -17,8 +17,10 @@ namespace Ryujinx.Tests.Cpu
protected const ulong CodeBaseAddress = 0x1000;
protected const ulong DataBaseAddress = CodeBaseAddress + Size;
private const bool Ignore_FpcrFz_FpcrDn = false;
private const bool IgnoreAllExcept_FpsrQc = false;
private static bool Ignore_FpcrFz = false;
private static bool Ignore_FpcrDn = false;
private static bool IgnoreAllExcept_FpsrQc = false;
private ulong _currAddress;
@ -205,11 +207,14 @@ namespace Ryujinx.Tests.Cpu
int fpsr = 0,
bool runUnicorn = true)
{
if (Ignore_FpcrFz_FpcrDn)
if (Ignore_FpcrFz)
{
#pragma warning disable CS0162
fpcr &= ~((1 << (int)Fpcr.Fz) | (1 << (int)Fpcr.Dn));
#pragma warning restore CS0162
fpcr &= ~(1 << (int)Fpcr.Fz);
}
if (Ignore_FpcrDn)
{
fpcr &= ~(1 << (int)Fpcr.Dn);
}
Opcode(opcode);
@ -323,9 +328,7 @@ namespace Ryujinx.Tests.Cpu
if (IgnoreAllExcept_FpsrQc)
{
#pragma warning disable CS0162
fpsrMask &= Fpsr.Qc;
#pragma warning restore CS0162
}
if (fpSkips != FpSkips.None)