Ryujinx-git/ChocolArm64/Instructions/InstEmitSimdCmp.cs

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using ChocolArm64.Decoders;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection.Emit;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
using static ChocolArm64.Instructions.InstEmitAluHelper;
using static ChocolArm64.Instructions.InstEmitSimdHelper;
namespace ChocolArm64.Instructions
{
static partial class InstEmit
{
public static void Cmeq_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Beq_S, scalar: true);
}
public static void Cmeq_V(ILEmitterCtx context)
{
if (context.CurrOp is OpCodeSimdReg64 op)
{
if (op.Size < 3 && Optimizations.UseSse2)
{
EmitSse2Op(context, nameof(Sse2.CompareEqual));
}
else if (op.Size == 3 && Optimizations.UseSse41)
{
EmitSse41Op(context, nameof(Sse41.CompareEqual));
}
else
{
EmitCmpOp(context, OpCodes.Beq_S, scalar: false);
}
}
else
{
EmitCmpOp(context, OpCodes.Beq_S, scalar: false);
}
}
public static void Cmge_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bge_S, scalar: true);
}
public static void Cmge_V(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bge_S, scalar: false);
}
public static void Cmgt_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bgt_S, scalar: true);
}
public static void Cmgt_V(ILEmitterCtx context)
{
if (context.CurrOp is OpCodeSimdReg64 op)
{
if (op.Size < 3 && Optimizations.UseSse2)
{
EmitSse2Op(context, nameof(Sse2.CompareGreaterThan));
}
else if (op.Size == 3 && Optimizations.UseSse42)
{
EmitSse42Op(context, nameof(Sse42.CompareGreaterThan));
}
else
{
EmitCmpOp(context, OpCodes.Bgt_S, scalar: false);
}
}
else
{
EmitCmpOp(context, OpCodes.Bgt_S, scalar: false);
}
}
public static void Cmhi_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bgt_Un_S, scalar: true);
}
public static void Cmhi_V(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bgt_Un_S, scalar: false);
}
public static void Cmhs_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bge_Un_S, scalar: true);
}
public static void Cmhs_V(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Bge_Un_S, scalar: false);
}
public static void Cmle_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Ble_S, scalar: true);
}
public static void Cmle_V(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Ble_S, scalar: false);
}
public static void Cmlt_S(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Blt_S, scalar: true);
}
public static void Cmlt_V(ILEmitterCtx context)
{
EmitCmpOp(context, OpCodes.Blt_S, scalar: false);
}
public static void Cmtst_S(ILEmitterCtx context)
{
EmitCmtstOp(context, scalar: true);
}
public static void Cmtst_V(ILEmitterCtx context)
{
EmitCmtstOp(context, scalar: false);
}
public static void Fccmp_S(ILEmitterCtx context)
{
OpCodeSimdFcond64 op = (OpCodeSimdFcond64)context.CurrOp;
ILLabel lblTrue = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.EmitCondBranch(lblTrue, op.Cond);
context.EmitLdc_I4(op.Nzcv);
EmitSetNzcv(context);
context.Emit(OpCodes.Br, lblEnd);
context.MarkLabel(lblTrue);
EmitFcmpOrFcmpe(context, signalNaNs: false);
context.MarkLabel(lblEnd);
}
public static void Fccmpe_S(ILEmitterCtx context)
{
OpCodeSimdFcond64 op = (OpCodeSimdFcond64)context.CurrOp;
ILLabel lblTrue = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.EmitCondBranch(lblTrue, op.Cond);
context.EmitLdc_I4(op.Nzcv);
EmitSetNzcv(context);
context.Emit(OpCodes.Br, lblEnd);
context.MarkLabel(lblTrue);
EmitFcmpOrFcmpe(context, signalNaNs: true);
context.MarkLabel(lblEnd);
}
public static void Fcmeq_S(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareEqualScalar), scalar: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareEQ), scalar: true);
}
}
public static void Fcmeq_V(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareEqual), scalar: false);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareEQ), scalar: false);
}
}
public static void Fcmge_S(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThanOrEqualScalar), scalar: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareGE), scalar: true);
}
}
public static void Fcmge_V(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThanOrEqual), scalar: false);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareGE), scalar: false);
}
}
public static void Fcmgt_S(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThanScalar), scalar: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareGT), scalar: true);
}
}
public static void Fcmgt_V(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThan), scalar: false);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareGT), scalar: false);
}
}
public static void Fcmle_S(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThanOrEqualScalar), scalar: true, isLeOrLt: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareLE), scalar: true);
}
}
public static void Fcmle_V(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThanOrEqual), scalar: false, isLeOrLt: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareLE), scalar: false);
}
}
public static void Fcmlt_S(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThanScalar), scalar: true, isLeOrLt: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareLT), scalar: true);
}
}
public static void Fcmlt_V(ILEmitterCtx context)
{
if (Optimizations.FastFP && Optimizations.UseSse2)
{
EmitCmpSseOrSse2OpF(context, nameof(Sse.CompareGreaterThan), scalar: false, isLeOrLt: true);
}
else
{
EmitCmpOpF(context, nameof(SoftFloat32.FPCompareLT), scalar: false);
}
}
public static void Fcmp_S(ILEmitterCtx context)
{
EmitFcmpOrFcmpe(context, signalNaNs: false);
}
public static void Fcmpe_S(ILEmitterCtx context)
{
EmitFcmpOrFcmpe(context, signalNaNs: true);
}
private static void EmitFcmpOrFcmpe(ILEmitterCtx context, bool signalNaNs)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
bool cmpWithZero = !(op is OpCodeSimdFcond64) ? op.Bit3 : false;
if (Optimizations.FastFP && Optimizations.UseSse2)
{
if (op.Size == 0)
{
Type[] typesCmp = new Type[] { typeof(Vector128<float>), typeof(Vector128<float>) };
ILLabel lblNaN = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.EmitLdvec(op.Rn);
context.Emit(OpCodes.Dup);
context.EmitStvectmp();
if (cmpWithZero)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
}
else
{
context.EmitLdvec(op.Rm);
}
context.Emit(OpCodes.Dup);
context.EmitStvectmp2();
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareOrderedScalar), typesCmp));
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareEqualOrderedScalar), typesCmp));
context.Emit(OpCodes.Brtrue_S, lblNaN);
context.EmitLdc_I4(0);
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareGreaterThanOrEqualOrderedScalar), typesCmp));
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareEqualOrderedScalar), typesCmp));
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareLessThanOrderedScalar), typesCmp));
context.EmitStflg((int)PState.NBit);
context.EmitStflg((int)PState.ZBit);
context.EmitStflg((int)PState.CBit);
context.EmitStflg((int)PState.VBit);
context.Emit(OpCodes.Br_S, lblEnd);
context.MarkLabel(lblNaN);
context.EmitLdc_I4(1);
context.Emit(OpCodes.Dup);
context.EmitLdc_I4(0);
context.Emit(OpCodes.Dup);
context.EmitStflg((int)PState.NBit);
context.EmitStflg((int)PState.ZBit);
context.EmitStflg((int)PState.CBit);
context.EmitStflg((int)PState.VBit);
context.MarkLabel(lblEnd);
}
else /* if (op.Size == 1) */
{
Type[] typesCmp = new Type[] { typeof(Vector128<double>), typeof(Vector128<double>) };
ILLabel lblNaN = new ILLabel();
ILLabel lblEnd = new ILLabel();
EmitLdvecWithCastToDouble(context, op.Rn);
context.Emit(OpCodes.Dup);
context.EmitStvectmp();
if (cmpWithZero)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorDoubleZero));
}
else
{
EmitLdvecWithCastToDouble(context, op.Rm);
}
context.Emit(OpCodes.Dup);
context.EmitStvectmp2();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareOrderedScalar), typesCmp));
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorDoubleZero));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareEqualOrderedScalar), typesCmp));
context.Emit(OpCodes.Brtrue_S, lblNaN);
context.EmitLdc_I4(0);
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareGreaterThanOrEqualOrderedScalar), typesCmp));
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareEqualOrderedScalar), typesCmp));
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareLessThanOrderedScalar), typesCmp));
context.EmitStflg((int)PState.NBit);
context.EmitStflg((int)PState.ZBit);
context.EmitStflg((int)PState.CBit);
context.EmitStflg((int)PState.VBit);
context.Emit(OpCodes.Br_S, lblEnd);
context.MarkLabel(lblNaN);
context.EmitLdc_I4(1);
context.Emit(OpCodes.Dup);
context.EmitLdc_I4(0);
context.Emit(OpCodes.Dup);
context.EmitStflg((int)PState.NBit);
context.EmitStflg((int)PState.ZBit);
context.EmitStflg((int)PState.CBit);
context.EmitStflg((int)PState.VBit);
context.MarkLabel(lblEnd);
}
}
else
{
EmitVectorExtractF(context, op.Rn, 0, op.Size);
if (cmpWithZero)
{
if (op.Size == 0)
{
context.EmitLdc_R4(0f);
}
else /* if (op.Size == 1) */
{
context.EmitLdc_R8(0d);
}
}
else
{
EmitVectorExtractF(context, op.Rm, 0, op.Size);
}
context.EmitLdc_I4(!signalNaNs ? 0 : 1);
EmitSoftFloatCall(context, nameof(SoftFloat32.FPCompare));
EmitSetNzcv(context);
}
}
private static void EmitCmpOp(ILEmitterCtx context, OpCode ilOp, bool scalar)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = !scalar ? bytes >> op.Size : 1;
ulong szMask = ulong.MaxValue >> (64 - (8 << op.Size));
for (int index = 0; index < elems; index++)
{
EmitVectorExtractSx(context, op.Rn, index, op.Size);
if (op is OpCodeSimdReg64 binOp)
{
EmitVectorExtractSx(context, binOp.Rm, index, op.Size);
}
else
{
context.EmitLdc_I8(0L);
}
ILLabel lblTrue = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.Emit(ilOp, lblTrue);
EmitVectorInsert(context, op.Rd, index, op.Size, 0);
context.Emit(OpCodes.Br_S, lblEnd);
context.MarkLabel(lblTrue);
EmitVectorInsert(context, op.Rd, index, op.Size, (long)szMask);
context.MarkLabel(lblEnd);
}
if ((op.RegisterSize == RegisterSize.Simd64) || scalar)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitCmtstOp(ILEmitterCtx context, bool scalar)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = !scalar ? bytes >> op.Size : 1;
ulong szMask = ulong.MaxValue >> (64 - (8 << op.Size));
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, index, op.Size);
EmitVectorExtractZx(context, op.Rm, index, op.Size);
ILLabel lblTrue = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.Emit(OpCodes.And);
context.EmitLdc_I8(0L);
context.Emit(OpCodes.Bne_Un_S, lblTrue);
EmitVectorInsert(context, op.Rd, index, op.Size, 0);
context.Emit(OpCodes.Br_S, lblEnd);
context.MarkLabel(lblTrue);
EmitVectorInsert(context, op.Rd, index, op.Size, (long)szMask);
context.MarkLabel(lblEnd);
}
if ((op.RegisterSize == RegisterSize.Simd64) || scalar)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitCmpOpF(ILEmitterCtx context, string name, bool scalar)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int bytes = op.GetBitsCount() >> 3;
int elems = !scalar ? bytes >> sizeF + 2 : 1;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractF(context, op.Rn, index, sizeF);
if (op is OpCodeSimdReg64 binOp)
{
EmitVectorExtractF(context, binOp.Rm, index, sizeF);
}
else
{
if (sizeF == 0)
{
context.EmitLdc_R4(0f);
}
else /* if (sizeF == 1) */
{
context.EmitLdc_R8(0d);
}
}
EmitSoftFloatCall(context, name);
EmitVectorInsertF(context, op.Rd, index, sizeF);
}
if (!scalar)
{
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
if (sizeF == 0)
{
EmitVectorZero32_128(context, op.Rd);
}
else /* if (sizeF == 1) */
{
EmitVectorZeroUpper(context, op.Rd);
}
}
}
private static void EmitCmpSseOrSse2OpF(ILEmitterCtx context, string name, bool scalar, bool isLeOrLt = false)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
if (sizeF == 0)
{
Type[] types = new Type[] { typeof(Vector128<float>), typeof(Vector128<float>) };
if (!isLeOrLt)
{
context.EmitLdvec(op.Rn);
}
if (op is OpCodeSimdReg64 binOp)
{
context.EmitLdvec(binOp.Rm);
}
else
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
}
if (isLeOrLt)
{
context.EmitLdvec(op.Rn);
}
context.EmitCall(typeof(Sse).GetMethod(name, types));
context.EmitStvec(op.Rd);
if (scalar)
{
EmitVectorZero32_128(context, op.Rd);
}
else if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else /* if (sizeF == 1) */
{
Type[] types = new Type[] { typeof(Vector128<double>), typeof(Vector128<double>) };
if (!isLeOrLt)
{
EmitLdvecWithCastToDouble(context, op.Rn);
}
if (op is OpCodeSimdReg64 binOp)
{
EmitLdvecWithCastToDouble(context, binOp.Rm);
}
else
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorDoubleZero));
}
if (isLeOrLt)
{
EmitLdvecWithCastToDouble(context, op.Rn);
}
context.EmitCall(typeof(Sse2).GetMethod(name, types));
EmitStvecWithCastFromDouble(context, op.Rd);
if (scalar)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
}
}
}