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Zero out bits 63:32 of scalar float operations with SSE intrinsics (#273)

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This commit is contained in:
gdkchan
2018-08-14 23:54:12 -03:00
committed by GitHub
parent 0673dc183a
commit 55374ebba0
4 changed files with 69 additions and 16 deletions
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23
ChocolArm64/Instruction/AVectorHelper.cs
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@ -9,6 +9,18 @@ namespace ChocolArm64.Instruction
{
static class AVectorHelper
{
private static readonly Vector128<float> Zero32_128Mask;
static AVectorHelper()
{
if (!Sse2.IsSupported)
{
throw new PlatformNotSupportedException();
}
Zero32_128Mask = Sse.StaticCast<uint, float>(Sse2.SetVector128(0, 0, 0, 0xffffffff));
}
public static void EmitCall(AILEmitterCtx Context, string Name64, string Name128)
{
bool IsSimd64 = Context.CurrOp.RegisterSize == ARegisterSize.SIMD64;
@ -448,6 +460,17 @@ namespace ChocolArm64.Instruction
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorZero32_128(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.And(Vector, Zero32_128Mask);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<sbyte> VectorSingleToSByte(Vector128<float> Vector)
{