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using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation;
using System;
using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
namespace ARMeilleure.Instructions
{
static class InstEmitSimdHashHelper
{
public static Operand EmitSha256h(ArmEmitterContext context, Operand x, Operand y, Operand w, bool part2)
{
if (Optimizations.UseSha)
{
Operand src1 = context.AddIntrinsic(Intrinsic.X86Shufps, y, x, Const(0xbb));
Operand src2 = context.AddIntrinsic(Intrinsic.X86Shufps, y, x, Const(0x11));
Operand w2 = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, w, w);
Operand round2 = context.AddIntrinsic(Intrinsic.X86Sha256Rnds2, src1, src2, w);
Operand round4 = context.AddIntrinsic(Intrinsic.X86Sha256Rnds2, src2, round2, w2);
Operand res = context.AddIntrinsic(Intrinsic.X86Shufps, round4, round2, Const(part2 ? 0x11 : 0xbb));
return res;
}
String method = part2 ? nameof(SoftFallback.HashUpper) : nameof(SoftFallback.HashLower);
return context.Call(typeof(SoftFallback).GetMethod(method), x, y, w);
}
public static Operand EmitSha256su0(ArmEmitterContext context, Operand x, Operand y)
{
if (Optimizations.UseSha)
{
return context.AddIntrinsic(Intrinsic.X86Sha256Msg1, x, y);
}
return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Sha256SchedulePart1)), x, y);
}
public static Operand EmitSha256su1(ArmEmitterContext context, Operand x, Operand y, Operand z)
{
if (Optimizations.UseSha && Optimizations.UseSsse3)
{
Operand extr = context.AddIntrinsic(Intrinsic.X86Palignr, z, y, Const(4));
Operand tmp = context.AddIntrinsic(Intrinsic.X86Paddd, extr, x);
Operand res = context.AddIntrinsic(Intrinsic.X86Sha256Msg2, tmp, z);
return res;
}
return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Sha256SchedulePart2)), x, y, z);
}
}
}
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