[API Proposal]: Arm64: FEAT_SVE_SHA3

FEAT_SVE_SHA3 gives SVE versions of the instructions provided in FEAT_SHA3 - see #98692

namespace System.Runtime.Intrinsics.Arm

/// VectorT Summary
public abstract class SveSha3 : AdvSimd /// Feature: FEAT_SVE_SHA3
{

  /// T: long, ulong
  public static unsafe Vector<T> BitwiseRotateLeftBy1AndXor(Vector<T> left, Vector<T> right); // RAX1

  /// total method signatures: 1

}


/// Full API
public abstract class SveSha3 : AdvSimd /// Feature: FEAT_SVE_SHA3
{
    /// BitwiseRotateLeftBy1AndXor : Bitwise rotate left by 1 and exclusive OR

    /// svint64_t svrax1[_s64](svint64_t op1, svint64_t op2) : "RAX1 Zresult.D, Zop1.D, Zop2.D"
  public static unsafe Vector<long> BitwiseRotateLeftBy1AndXor(Vector<long> left, Vector<long> right);

    /// svuint64_t svrax1[_u64](svuint64_t op1, svuint64_t op2) : "RAX1 Zresult.D, Zop1.D, Zop2.D"
  public static unsafe Vector<ulong> BitwiseRotateLeftBy1AndXor(Vector<ulong> left, Vector<ulong> right);


  /// total method signatures: 2
  /// total method names:      1
}


  /// Total ACLE covered across API:      2

This contributes to #93095

It covers all of the instructions in FEAT_SVE_SHA3.
This list was auto generated from the C ACLE for SVE, and is in three parts:

The methods list reduced down to Vector versions. All possible varaints of T are given above the method.
The complete list of all methods. The corresponding ACLE methods and SVE instructions are given above the method.
All rejected ACLE methods. These are methods we have agreed that do not need including in C#.
Where possible, existing C# naming conventions have been matched.

Many of the C functions include predicate argument(s), of type svbool_t as the first argument. These are missing from the C# method. It is expected that the Jit will create predicates where required, or combine with uses of conditionalSelect(). For more discussion see #88140 comment.

Video

Added the missing IsSupported property
Corrected the base type (AdvSimd => Sve)
BitwiseRotateLeftBy1AndXor(left, right) => BitwiseRotateLeftBy1AndXor(xor, rol1)

namespace System.Runtime.Intrinsics.Arm;

/// VectorT Summary
public abstract class SveSha3 : Sve /// Feature: FEAT_SVE_SHA3
{
  public static bool IsSupported { get; }

  /// T: long, ulong
  public static unsafe Vector<T> BitwiseRotateLeftBy1AndXor(Vector<T> xor, Vector<T> rol1); // RAX1
}

Arm64: Add SM4 and SHA3 instructions

Arm64: Add SM4 and SHA3 instructions (#124504)

Arm64: Add SM4 and SHA3 instructions (dotnet#124504)

Add SHA3 and SVE SHA3 APIs

Add SHA3 and SVE SHA3 APIs (dotnet#126941)

Add SHA3 and SVE SHA3 APIs (#126941)

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[API Proposal]: Arm64: FEAT_SVE_SHA3 #94425

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[API Proposal]: Arm64: FEAT_SVE_SHA3 #94425

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a74nh commented on Nov 6, 2023

bartonjs commented on Jan 6, 2026

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