feat: Implement ARM CPU feature detection across Linux, Android, BSD, Windows, macOS, and iOS

Xor-el · web-flow · commit 1b2405ec9fc2 · 2026-04-12T22:56:34.000+01:00
**Description:**

This PR replaces the stub `// TODO` implementations in `TArmSimdFeatures` with real, cross-platform ARM hardware capability detection, enabling runtime SIMD dispatch on ARM targets.

### New Units

- **`HlpArmHwCapProvider`** — Platform-abstracted ARM HWCAP provider:
  - **Linux/Android:** Resolves `getauxval` via `dlsym` to query `AT_HWCAP`/`AT_HWCAP2`
  - **BSD (FreeBSD, NetBSD, DragonFlyBSD):** Resolves `elf_aux_info` / `_elf_aux_info` via `dlsym`
  - **Windows ARM64:** Wraps `IsProcessorFeaturePresent` for `PF_ARM_V8_*` constants
  - Includes HWCAP bit definitions for both AArch64 and ARM32

- **`HlpDarwinSysCtl`** — Darwin-specific (macOS/iOS) feature detection via `sysctlbyname`, resolved dynamically through `dlsym`. Supports modern `FEAT_*` sysctl keys (macOS 12+) with automatic fallback to legacy keys (macOS 11).

### Changes to Existing Units

- **`HlpArmSimdFeatures`** — All `CPUHas*` methods now contain real detection logic for NEON, AES, SHA1, SHA256, SHA512, SHA3, PMULL, SVE, and SVE2. Added `CPUHasCRC32` / `HasCRC32` for CRC32 instruction detection.

- **`HlpX86SimdFeatures`** — Renamed `FSimdLevel` → `FActiveSimdLevel` and `GetSimdLevel()` → `GetActiveSimdLevel()` for consistency and clarity.

- **`HlpCpuFeatures`** — `TCpuFeatures.X86` and `TCpuFeatures.Arm` properties are now conditionally compiled under `HASHLIB_X86` / `HASHLIB_ARM` respectively, so only the relevant architecture code is included in each build.

- **Include files (`HashLib.inc`, `HashLibFPC.inc`):**
  - Renamed `HASHLIB_ARM` (which previously meant ARM32) to `HASHLIB_ARM32` and `HASHLIB_ARM_ASM` to `HASHLIB_ARM32_ASM` to avoid ambiguity
  - Introduced `HASHLIB_X86` (= I386 or X86_64) and `HASHLIB_ARM` (= ARM32 or AArch64) as architecture-family defines
  - Normalized indentation throughout

- **All dispatch units** (`HlpAdler32Dispatch`, `HlpCRCDispatch`, `HlpBlake2BDispatch`, `HlpBlake2SDispatch`, `HlpBlake3Dispatch`, `HlpSHA1Dispatch`, `HlpSHA2_256Dispatch`, `HlpSHA2_512Dispatch`, `HlpSHA3Dispatch`, `HlpXXHash3Dispatch`, `HlpArgon2Dispatch`, `HlpScryptDispatch`) — Updated to call `GetActiveSimdLevel()` instead of `GetSimdLevel()`.

### Design Notes

- All platform API resolution uses `dlopen(nil)` + `dlsym` at runtime, avoiding hard static imports and gracefully degrading when symbols are unavailable.
- ARM32 vs AArch64 differences in HWCAP register layout (e.g., ARM32 crypto extensions live in `HWCAP2` while AArch64 uses `HWCAP`) are handled via conditional compilation.
- On Windows ARM64, `PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE` bundles AES, PMULL, SHA1, and SHA256 together per Microsoft's documentation. SHA3/SHA512 use the newer `PF_ARM_V82_*` constants.
diff --git a/HashLib.Benchmark/Delphi/PerformanceBenchmarkConsole.dpr b/HashLib.Benchmark/Delphi/PerformanceBenchmarkConsole.dpr
@@ -128,6 +128,8 @@ uses
   HlpX86SimdFeatures in '..\..\HashLib\src\Utils\HlpX86SimdFeatures.pas',
   HlpArmSimdFeatures in '..\..\HashLib\src\Utils\HlpArmSimdFeatures.pas',
   HlpSimdLevels in '..\..\HashLib\src\Utils\HlpSimdLevels.pas',
+  HlpArmHwCapProvider in '..\..\HashLib\src\Utils\HlpArmHwCapProvider.pas',
+  HlpDarwinSysCtl in '..\..\HashLib\src\Utils\HlpDarwinSysCtl.pas',
   HlpHashLibTypes in '..\..\HashLib\src\Utils\HlpHashLibTypes.pas',
   HlpArrayUtils in '..\..\HashLib\src\Utils\HlpArrayUtils.pas';
 
diff --git a/HashLib.Tests/Delphi.Tests/HashLib.Tests.dpr b/HashLib.Tests/Delphi.Tests/HashLib.Tests.dpr
@@ -146,6 +146,8 @@ uses
   HlpX86SimdFeatures in '..\..\HashLib\src\Utils\HlpX86SimdFeatures.pas',
   HlpArmSimdFeatures in '..\..\HashLib\src\Utils\HlpArmSimdFeatures.pas',
   HlpSimdLevels in '..\..\HashLib\src\Utils\HlpSimdLevels.pas',
+  HlpArmHwCapProvider in '..\..\HashLib\src\Utils\HlpArmHwCapProvider.pas',
+  HlpDarwinSysCtl in '..\..\HashLib\src\Utils\HlpDarwinSysCtl.pas',
   HlpHashLibTypes in '..\..\HashLib\src\Utils\HlpHashLibTypes.pas',
   HlpArrayUtils in '..\..\HashLib\src\Utils\HlpArrayUtils.pas',
   HashLibTestBase in '..\src\HashLibTestBase.pas',
diff --git a/HashLib/src/Checksum/HlpAdler32Dispatch.pas b/HashLib/src/Checksum/HlpAdler32Dispatch.pas
@@ -201,7 +201,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       Adler32_Update := @Adler32_Update_Avx2;
diff --git a/HashLib/src/Checksum/HlpCRCDispatch.pas b/HashLib/src/Checksum/HlpCRCDispatch.pas
@@ -521,7 +521,7 @@ procedure InitDispatch();
   end;
   {$ENDIF HASHLIB_I386_ASM}
   {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2, TX86SimdLevel.SSSE3, TX86SimdLevel.SSE2:
       BindSse2CrcFold;
   end;
diff --git a/HashLib/src/Crypto/HlpBlake2BDispatch.pas b/HashLib/src/Crypto/HlpBlake2BDispatch.pas
@@ -140,7 +140,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       Blake2B_Compress := @Blake2B_Compress_Avx2;
diff --git a/HashLib/src/Crypto/HlpBlake2SDispatch.pas b/HashLib/src/Crypto/HlpBlake2SDispatch.pas
@@ -138,7 +138,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       Blake2S_Compress := @Blake2S_Compress_Avx2;
diff --git a/HashLib/src/Crypto/HlpBlake3Dispatch.pas b/HashLib/src/Crypto/HlpBlake3Dispatch.pas
@@ -723,7 +723,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       Blake3_Compress := @Blake3_Compress_Avx2;
diff --git a/HashLib/src/Crypto/HlpSHA1Dispatch.pas b/HashLib/src/Crypto/HlpSHA1Dispatch.pas
@@ -193,7 +193,7 @@ procedure InitDispatch();
     SHA1_Compress := @SHA1_Compress_ShaNi_Wrap;
     Exit;
   end;
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       SHA1_Compress := @SHA1_Compress_Avx2_Wrap;
diff --git a/HashLib/src/Crypto/HlpSHA2_256Dispatch.pas b/HashLib/src/Crypto/HlpSHA2_256Dispatch.pas
@@ -203,7 +203,7 @@ procedure InitDispatch();
     SHA256_Compress := @SHA256_Compress_ShaNi_Wrap;
     Exit;
   end;
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       SHA256_Compress := @SHA256_Compress_Avx2_Wrap;
diff --git a/HashLib/src/Crypto/HlpSHA2_512Dispatch.pas b/HashLib/src/Crypto/HlpSHA2_512Dispatch.pas
@@ -207,7 +207,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       SHA512_Compress := @SHA512_Compress_Avx2_Wrap;
diff --git a/HashLib/src/Crypto/HlpSHA3Dispatch.pas b/HashLib/src/Crypto/HlpSHA3Dispatch.pas
@@ -497,7 +497,7 @@ procedure InitDispatch();
   KeccakF1600_Permute := @KeccakF1600_Scalar;
   KeccakF1600_Absorb := @KeccakF1600_Absorb_Scalar;
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       KeccakF1600_Permute := @KeccakF1600_Avx2_Wrap;
diff --git a/HashLib/src/Hash64/HlpXXHash3Dispatch.pas b/HashLib/src/Hash64/HlpXXHash3Dispatch.pas
@@ -225,7 +225,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       XXH3_Accumulate512 := @XXH3_Accumulate512_Avx2;
diff --git a/HashLib/src/Include/HashLib.inc b/HashLib/src/Include/HashLib.inc
@@ -16,7 +16,7 @@
 {$IFDEF FPC}
   {$I HashLibFPC.inc}
 {$ELSE}
-   // Delphi 2010 and Above
+  // Delphi 2010 and Above
   {$IF CompilerVersion < 21.0}
     {$MESSAGE ERROR 'This Library requires Delphi 2010 or higher.'}
   {$IFEND}
@@ -43,54 +43,54 @@
     {$DEFINE HASHLIB_USE_PPL} // Use Parallel Programming Library
   {$IFEND}
 
-{============================== CPU Architecture ==============================}
+  {============================== CPU Architecture ==============================}
 
-{$IF DEFINED(CPU386)}
-  {$DEFINE HASHLIB_I386}
-  {$IFDEF MSWINDOWS}
-    {$DEFINE HASHLIB_I386_ASM}
-  {$ENDIF}
-{$IFEND}
-
-{$IF DEFINED(CPUX64)}
-  {$DEFINE HASHLIB_X86_64}
-  {$IFDEF MSWINDOWS}
-    {$DEFINE HASHLIB_X86_64_ASM}
-  {$ENDIF}
-{$IFEND}
+  {$IF DEFINED(CPU386)}
+    {$DEFINE HASHLIB_I386}
+    {$IFDEF MSWINDOWS}
+      {$DEFINE HASHLIB_I386_ASM}
+    {$ENDIF}
+  {$IFEND}
 
-{$IFDEF CPUARM32}
-   {$DEFINE HASHLIB_ARM}
-{$ENDIF}
+  {$IF DEFINED(CPUX64)}
+    {$DEFINE HASHLIB_X86_64}
+    {$IFDEF MSWINDOWS}
+      {$DEFINE HASHLIB_X86_64_ASM}
+    {$ENDIF}
+  {$IFEND}
 
-{$IFDEF CPUARM64}
-   {$DEFINE HASHLIB_AARCH64}
-{$ENDIF}
+  {$IFDEF CPUARM32}
+    {$DEFINE HASHLIB_ARM32}
+  {$ENDIF}
 
-{$ENDIF}
+  {$IFDEF CPUARM64}
+    {$DEFINE HASHLIB_AARCH64}
+  {$ENDIF}
 
-{================================= Target OS ==================================}
+  {================================= Target OS ==================================}
 
-{$IFDEF MSWINDOWS}
-   {$DEFINE HASHLIB_MSWINDOWS}
-{$ENDIF}
+  {$IFDEF MSWINDOWS}
+    {$DEFINE HASHLIB_MSWINDOWS}
+  {$ENDIF}
 
-{$IFDEF IOS}
-   {$DEFINE HASHLIB_IOS}
-{$ENDIF}
+  {$IFDEF IOS}
+    {$DEFINE HASHLIB_IOS}
+  {$ENDIF}
 
-{$IFDEF MACOS}
-   {$IFNDEF IOS}
+  {$IFDEF MACOS}
+    {$IFNDEF IOS}
       {$DEFINE HASHLIB_MACOS}
-   {$ENDIF}
-{$ENDIF}
+    {$ENDIF}
+  {$ENDIF}
 
-{$IFDEF ANDROID}
-   {$DEFINE HASHLIB_ANDROID}
-{$ENDIF}
+  {$IFDEF ANDROID}
+    {$DEFINE HASHLIB_ANDROID}
+  {$ENDIF}
+
+  {$IFDEF LINUX}
+    {$DEFINE HASHLIB_LINUX}
+  {$ENDIF}
 
-{$IFDEF LINUX}
-   {$DEFINE HASHLIB_LINUX}
 {$ENDIF}
 
 {========================== Common Compiler Settings ==========================}
@@ -102,7 +102,17 @@
 {$SCOPEDENUMS ON}
 {$POINTERMATH ON}
 
-{============================== SIMD Settings =================================}
+{========================== Common Defines Settings ===========================}
+
+{$IF DEFINED(HASHLIB_I386) OR DEFINED(HASHLIB_X86_64)}
+  {$DEFINE HASHLIB_X86}
+{$IFEND}
+
+{$IF DEFINED(HASHLIB_ARM32) OR DEFINED(HASHLIB_AARCH64)}
+  {$DEFINE HASHLIB_ARM}
+{$IFEND}
+
+{============================ Common SIMD Settings ============================}
 
 // Uncomment to force scalar dispatch (available on all platforms):
 // {$DEFINE HASHLIB_FORCE_SCALAR}
@@ -111,7 +121,7 @@
   {$DEFINE HASHLIB_X86_SIMD}
 {$IFEND}
 
-{$IF DEFINED(HASHLIB_ARM_ASM) OR DEFINED(HASHLIB_AARCH64_ASM)}
+{$IF DEFINED(HASHLIB_ARM32_ASM) OR DEFINED(HASHLIB_AARCH64_ASM)}
   {$DEFINE HASHLIB_ARM_SIMD}
 {$IFEND}
 
diff --git a/HashLib/src/Include/HashLibFPC.inc b/HashLib/src/Include/HashLibFPC.inc
@@ -13,25 +13,25 @@
 
 // FPC 3.2.2 and Above
 {$IF FPC_FULLVERSION < 30202}
-   {$MESSAGE ERROR 'This Library requires FreePascal 3.2.2 or higher.'}
+  {$MESSAGE ERROR 'This Library requires FreePascal 3.2.2 or higher.'}
 {$IFEND}
 
 {$IFDEF ENDIAN_BIG}
-   {$MESSAGE FATAL 'This Library does not support "Big Endian" processors yet.'}
+  {$MESSAGE FATAL 'This Library does not support "Big Endian" processors yet.'}
 {$ENDIF}
 
 {$IFDEF FPC_LITTLE_ENDIAN}
-   {$DEFINE HASHLIB_LITTLE_ENDIAN}
+  {$DEFINE HASHLIB_LITTLE_ENDIAN}
 {$ENDIF}
 
 {$IFDEF FPC_REQUIRES_PROPER_ALIGNMENT}
-   {$DEFINE HASHLIB_REQUIRES_PROPER_ALIGNMENT}
+  {$DEFINE HASHLIB_REQUIRES_PROPER_ALIGNMENT}
 {$ENDIF}
 
 {========================= FPC Version Features ===============================}
 
 {$IF FPC_FULLVERSION >= 30301}
-   {.$DEFINE HASHLIB_USE_PPL} // Use Parallel Programming Library
+  {.$DEFINE HASHLIB_USE_PPL} // Use Parallel Programming Library
 {$IFEND}
 
 {$DEFINE USE_UNROLLED_VARIANT}
@@ -49,43 +49,43 @@
 {$IFEND}
 
 {$IFDEF CPUARM}
-   {$DEFINE HASHLIB_ARM}
-   {$DEFINE HASHLIB_ARM_ASM}
+  {$DEFINE HASHLIB_ARM32}
+  {$DEFINE HASHLIB_ARM32_ASM}
 {$ENDIF}
 
 {$IFDEF CPUAARCH64}
-   {$DEFINE HASHLIB_AARCH64}
-   {$DEFINE HASHLIB_AARCH64_ASM}
+  {$DEFINE HASHLIB_AARCH64}
+  {$DEFINE HASHLIB_AARCH64_ASM}
 {$ENDIF}
 
 {================================= Target OS ==================================}
 
 {$IFDEF MSWINDOWS}
-   {$DEFINE HASHLIB_MSWINDOWS}
+  {$DEFINE HASHLIB_MSWINDOWS}
 {$ENDIF}
 
 {$IFDEF ANDROID}
-   {$DEFINE HASHLIB_ANDROID}
+  {$DEFINE HASHLIB_ANDROID}
 {$ENDIF}
 
 {$IFDEF IOS}
-   {$DEFINE HASHLIB_IOS}
+  {$DEFINE HASHLIB_IOS}
 {$ENDIF}
 
 {$IF DEFINED(DARWIN) AND NOT DEFINED(HASHLIB_IOS)}
-   {$DEFINE HASHLIB_MACOS}
+  {$DEFINE HASHLIB_MACOS}
 {$IFEND}
 
 {$IF DEFINED(FREEBSD) OR DEFINED(NETBSD) OR DEFINED(OPENBSD) OR DEFINED(DRAGONFLY)}
-   {$DEFINE HASHLIB_BSD}
+  {$DEFINE HASHLIB_BSD}
 {$IFEND}
 
 {$IFDEF LINUX}
-   {$DEFINE HASHLIB_LINUX}
+  {$DEFINE HASHLIB_LINUX}
 {$ENDIF}
 
 {$IFDEF SOLARIS}
-   {$DEFINE HASHLIB_SOLARIS}
+  {$DEFINE HASHLIB_SOLARIS}
 {$ENDIF}
 
 {========================= Compiler Mode & Optimizations ======================}
diff --git a/HashLib/src/KDF/HlpArgon2Dispatch.pas b/HashLib/src/KDF/HlpArgon2Dispatch.pas
@@ -145,7 +145,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       Argon2_FillBlock := @Argon2_FillBlock_Avx2;
diff --git a/HashLib/src/KDF/HlpScryptDispatch.pas b/HashLib/src/KDF/HlpScryptDispatch.pas
@@ -210,7 +210,7 @@ procedure InitDispatch();
   end;
 {$ENDIF}
 {$IFDEF HASHLIB_X86_64_ASM}
-  case TCpuFeatures.X86.GetSimdLevel() of
+  case TCpuFeatures.X86.GetActiveSimdLevel() of
     TX86SimdLevel.AVX2:
     begin
       Scrypt_SalsaXor := @Scrypt_SalsaXor_Avx2;
diff --git a/HashLib/src/Packages/Delphi/HashLib4PascalPackage.dpk b/HashLib/src/Packages/Delphi/HashLib4PascalPackage.dpk
@@ -154,6 +154,8 @@ contains
   HlpX86SimdFeatures in '..\..\Utils\HlpX86SimdFeatures.pas',
   HlpArmSimdFeatures in '..\..\Utils\HlpArmSimdFeatures.pas',
   HlpSimdLevels in '..\..\Utils\HlpSimdLevels.pas',
+  HlpArmHwCapProvider in '..\..\Utils\HlpArmHwCapProvider.pas',
+  HlpDarwinSysCtl in '..\..\Utils\HlpDarwinSysCtl.pas',
   HlpHashLibTypes in '..\..\Utils\HlpHashLibTypes.pas',
   HlpArrayUtils in '..\..\Utils\HlpArrayUtils.pas';
 
diff --git a/HashLib/src/Packages/FPC/HashLib4PascalPackage.lpk b/HashLib/src/Packages/FPC/HashLib4PascalPackage.lpk
@@ -29,7 +29,7 @@
 "/>
     <License Value="MIT License"/>
     <Version Major="4" Minor="2"/>
-    <Files Count="123">
+    <Files Count="125">
       <Item1>
         <Filename Value="..\..\Base\HlpHash.pas"/>
         <UnitName Value="HlpHash"/>
@@ -522,6 +522,14 @@
         <Filename Value="..\..\Utils\HlpX86SimdFeatures.pas"/>
         <UnitName Value="HlpX86SimdFeatures"/>
       </Item123>
+      <Item124>
+        <Filename Value="..\..\Utils\HlpArmHwCapProvider.pas"/>
+        <UnitName Value="HlpArmHwCapProvider"/>
+      </Item124>
+      <Item125>
+        <Filename Value="..\..\Utils\HlpDarwinSysCtl.pas"/>
+        <UnitName Value="HlpDarwinSysCtl"/>
+      </Item125>
     </Files>
     <CompatibilityMode Value="True"/>
     <LazDoc PackageName="(default)"/>
diff --git a/HashLib/src/Packages/FPC/HashLib4PascalPackage.pas b/HashLib/src/Packages/FPC/HashLib4PascalPackage.pas
@@ -33,7 +33,8 @@ interface
   HlpArgon2Dispatch, HlpScryptDispatch, HlpBlake3Dispatch, 
   HlpSHA2_256Dispatch, HlpSHA2_512Dispatch, HlpSHA1Dispatch, 
   HlpAdler32Dispatch, HlpGF2, HlpCRCDispatch, HlpSHA3Dispatch, 
-  HlpArmSimdFeatures, HlpSimdLevels, HlpX86SimdFeatures;
+  HlpArmSimdFeatures, HlpSimdLevels, HlpX86SimdFeatures, HlpArmHwCapProvider, 
+  HlpDarwinSysCtl;
 
 implementation
 
diff --git a/HashLib/src/Utils/HlpArmHwCapProvider.pas b/HashLib/src/Utils/HlpArmHwCapProvider.pas
diff --git a/HashLib/src/Utils/HlpArmSimdFeatures.pas b/HashLib/src/Utils/HlpArmSimdFeatures.pas
diff --git a/HashLib/src/Utils/HlpCpuFeatures.pas b/HashLib/src/Utils/HlpCpuFeatures.pas
diff --git a/HashLib/src/Utils/HlpDarwinSysCtl.pas b/HashLib/src/Utils/HlpDarwinSysCtl.pas
diff --git a/HashLib/src/Utils/HlpX86SimdFeatures.pas b/HashLib/src/Utils/HlpX86SimdFeatures.pas
