Add .NET 12 support

NuGet.Config

@@ -15,6 +15,7 @@
     <add key="dotnet9" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet9/nuget/v3/index.json" />
     <add key="dotnet10" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet10/nuget/v3/index.json" />
     <add key="dotnet11" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json" />
+    <add key="dotnet12" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet12/nuget/v3/index.json" />
 
     <add key="benchmarkdotnet.weaver" value="src/BenchmarkDotNet.Weaver/packages" />
   </packageSources>

src/BenchmarkDotNet.Annotations/Jobs/RuntimeMoniker.cs

@@ -53,6 +53,8 @@ public static class RuntimeMoniker
         public const string Net10_0 = "net10.0";
         /// <summary>.NET 11.0</summary>
         public const string Net11_0 = "net11.0";
+        /// <summary>.NET 12.0</summary>
+        public const string Net12_0 = "net12.0";
 
         /// <summary>NativeAOT compiled as net7.0</summary>
         public const string NativeAot70 = "nativeaot7.0";
@@ -64,6 +66,8 @@ public static class RuntimeMoniker
         public const string NativeAot10_0 = "nativeaot10.0";
         /// <summary>NativeAOT compiled as net11.0</summary>
         public const string NativeAot11_0 = "nativeaot11.0";
+        /// <summary>NativeAOT compiled as net12.0</summary>
+        public const string NativeAot12_0 = "nativeaot12.0";
 
         /// <summary>.NET 6 using MonoVM (not CLR which is the default)</summary>
         public const string Mono60 = "mono6.0";
@@ -77,6 +81,8 @@ public static class RuntimeMoniker
         public const string Mono10_0 = "mono10.0";
         /// <summary>.NET 11 using MonoVM (not CLR which is the default)</summary>
         public const string Mono11_0 = "mono11.0";
+        /// <summary>.NET 12 using MonoVM (not CLR which is the default)</summary>
+        public const string Mono12_0 = "mono12.0";
 
         /// <summary>.NET 8 CLR with composite ReadyToRun compilation</summary>
         public const string R2R80 = "r2r8.0";
@@ -86,6 +92,8 @@ public static class RuntimeMoniker
         public const string R2R10_0 = "r2r10.0";
         /// <summary>.NET 11 CLR with composite ReadyToRun compilation</summary>
         public const string R2R11_0 = "r2r11.0";
+        /// <summary>.NET 12 CLR with composite ReadyToRun compilation</summary>
+        public const string R2R12_0 = "r2r12.0";
 
         /// <summary>Mono WebAssembly with net8.0</summary>
         public const string MonoWasm80 = "monowasm8.0";
@@ -95,6 +103,8 @@ public static class RuntimeMoniker
         public const string MonoWasm10_0 = "monowasm10.0";
         /// <summary>Mono WebAssembly with net11.0</summary>
         public const string MonoWasm11_0 = "monowasm11.0";
+        /// <summary>Mono WebAssembly with net12.0</summary>
+        public const string MonoWasm12_0 = "monowasm12.0";
 
         /// <summary>Mono WebAssembly AOT with net8.0</summary>
         public const string MonoWasmAot80 = "monowasmaot8.0";
@@ -104,6 +114,8 @@ public static class RuntimeMoniker
         public const string MonoWasmAot10_0 = "monowasmaot10.0";
         /// <summary>Mono WebAssembly AOT with net11.0</summary>
         public const string MonoWasmAot11_0 = "monowasmaot11.0";
+        /// <summary>Mono WebAssembly AOT with net12.0</summary>
+        public const string MonoWasmAot12_0 = "monowasmaot12.0";
 
         // Still experimental
         //public const string CoreWasm11_0 = "corewasm11.0";

src/BenchmarkDotNet/Environments/Runtimes/CoreRuntime.cs

@@ -29,8 +29,9 @@ public sealed class CoreRuntime : Runtime
         public static readonly CoreRuntime Core90 = new(new(9, 0));
         public static readonly CoreRuntime Core10_0 = new(new(10, 0));
         public static readonly CoreRuntime Core11_0 = new(new(11, 0));
+        public static readonly CoreRuntime Core12_0 = new(new(12, 0));
 
-        public static CoreRuntime Latest => Core11_0; // when dotnet/runtime branches for 12.0, this will need to get updated
+        public static CoreRuntime Latest => Core12_0; // when dotnet/runtime branches for 13.0, this will need to get updated
 
         private readonly string? platform;
 
@@ -125,6 +126,7 @@ public static CoreRuntime From(Version version, string? platform = null)
                     (9, 0) => Core90,
                     (10, 0) => Core10_0,
                     (11, 0) => Core11_0,
+                    (12, 0) => Core12_0,
                     _ => new CoreRuntime(version),
                 };
 
@@ -314,6 +316,7 @@ private static CoreRuntime GetPlatformSpecific(Version version, Assembly? assemb
                     9 => Core90,
                     10 => Core10_0,
                     11 => Core11_0,
+                    12 => Core12_0,
                     _ => new(version),
                 };
 

src/BenchmarkDotNet/Environments/Runtimes/MonoCoreRuntime.cs

@@ -17,6 +17,7 @@ public sealed class MonoCoreRuntime : Runtime
     public static readonly MonoCoreRuntime Net90 = new(new(9, 0));
     public static readonly MonoCoreRuntime Net10_0 = new(new(10, 0));
     public static readonly MonoCoreRuntime Net11_0 = new(new(11, 0));
+    public static readonly MonoCoreRuntime Net12_0 = new(new(12, 0));
 
     private MonoCoreRuntime(Version version) => Version = ToRuntimeVersion(version);
 
@@ -36,6 +37,7 @@ public static MonoCoreRuntime From(Version version)
             9 => Net90,
             10 => Net10_0,
             11 => Net11_0,
+            12 => Net12_0,
             _ => new(version),
         };
 

src/BenchmarkDotNet/Environments/Runtimes/MonoWasmAotRuntime.cs

@@ -13,6 +13,7 @@ public sealed class MonoWasmAotRuntime : WasmRuntime
     public static readonly MonoWasmAotRuntime Net90 = new(new(9, 0));
     public static readonly MonoWasmAotRuntime Net10_0 = new(new(10, 0));
     public static readonly MonoWasmAotRuntime Net11_0 = new(new(11, 0));
+    public static readonly MonoWasmAotRuntime Net12_0 = new(new(12, 0));
 
     private MonoWasmAotRuntime(Version version) : base(version) { }
 
@@ -26,6 +27,7 @@ public static MonoWasmAotRuntime From(Version version)
             9 => Net90,
             10 => Net10_0,
             11 => Net11_0,
+            12 => Net12_0,
             _ => new(version),
         };
 

src/BenchmarkDotNet/Environments/Runtimes/MonoWasmRuntime.cs

@@ -13,6 +13,7 @@ public sealed class MonoWasmRuntime : WasmRuntime
     public static readonly MonoWasmRuntime Net90 = new(new(9, 0));
     public static readonly MonoWasmRuntime Net10_0 = new(new(10, 0));
     public static readonly MonoWasmRuntime Net11_0 = new(new(11, 0));
+    public static readonly MonoWasmRuntime Net12_0 = new(new(12, 0));
 
     private MonoWasmRuntime(Version version) : base(version) { }
 
@@ -26,6 +27,7 @@ public static MonoWasmRuntime From(Version version)
             9 => Net90,
             10 => Net10_0,
             11 => Net11_0,
+            12 => Net12_0,
             _ => new(version),
         };
 

src/BenchmarkDotNet/Environments/Runtimes/NativeAotRuntime.cs

@@ -28,6 +28,11 @@ public sealed class NativeAotRuntime : Runtime
         /// </summary>
         public static readonly NativeAotRuntime Net11_0 = new(new(11, 0));
 
+        /// <summary>
+        /// NativeAOT compiled as net12.0
+        /// </summary>
+        public static readonly NativeAotRuntime Net12_0 = new(new(12, 0));
+
         private NativeAotRuntime(Version version) => Version = ToRuntimeVersion(version);
 
         public override string Name => "NativeAOT";
@@ -53,6 +58,7 @@ public static NativeAotRuntime From(Version version)
                 9 => Net90,
                 10 => Net10_0,
                 11 => Net11_0,
+                12 => Net12_0,
                 _ => new(version),
             };
 

src/BenchmarkDotNet/Environments/Runtimes/R2RRuntime.cs

@@ -10,6 +10,7 @@ public sealed class R2RRuntime : Runtime
         public static readonly R2RRuntime Net90 = new(new(9, 0));
         public static readonly R2RRuntime Net10_0 = new(new(10, 0));
         public static readonly R2RRuntime Net11_0 = new(new(11, 0));
+        public static readonly R2RRuntime Net12_0 = new(new(12, 0));
 
         private R2RRuntime(Version version) => Version = ToRuntimeVersion(version);
 
@@ -25,6 +26,7 @@ public static R2RRuntime From(Version version)
                 9 => Net90,
                 10 => Net10_0,
                 11 => Net11_0,
+                12 => Net12_0,
                 _ => new(version),
             };
 

src/BenchmarkDotNet/Toolchains/CoreRun/CoreRunToolchain.cs

@@ -9,7 +9,7 @@ namespace BenchmarkDotNet.Toolchains.CoreRun
 {
     public sealed class CoreRunToolchain : IToolchain, IHasSettings
     {
-        private const string DefaultTargetFrameworkMoniker = "net11.0";
+        private const string DefaultTargetFrameworkMoniker = "net12.0";
 
         private CoreRunToolchain(CoreRunSettings settings)
         {

src/BenchmarkDotNet/Toolchains/Mono/CsProjMonoCoreToolchain.cs

@@ -13,6 +13,7 @@ public sealed class CsProjMonoCoreToolchain : CsProjNetToolchain
     public static readonly CsProjMonoCoreToolchain Mono90 = new(MonoCoreRuntime.Net90, MonoCoreSettings.Default);
     public static readonly CsProjMonoCoreToolchain Mono10_0 = new(MonoCoreRuntime.Net10_0, MonoCoreSettings.Default);
     public static readonly CsProjMonoCoreToolchain Mono11_0 = new(MonoCoreRuntime.Net11_0, MonoCoreSettings.Default);
+    public static readonly CsProjMonoCoreToolchain Mono12_0 = new(MonoCoreRuntime.Net12_0, MonoCoreSettings.Default);
 
     private CsProjMonoCoreToolchain(MonoCoreRuntime runtime, MonoCoreSettings settings)
         : this(runtime, settings, Resolve(settings, runtime)) { }
@@ -46,6 +47,7 @@ public static CsProjMonoCoreToolchain From(MonoCoreRuntime runtime, MonoCoreSett
             9 => Mono90,
             10 => Mono10_0,
             11 => Mono11_0,
+            12 => Mono12_0,
             _ => new CsProjMonoCoreToolchain(runtime, settings),
         };
     }

src/BenchmarkDotNet/Toolchains/NativeAot/CsProjNativeAotGenerator.cs

@@ -19,7 +19,7 @@ internal sealed class CsProjNativeAotGenerator : CsProjGenerator
 {
     internal const string NativeAotNuGetFeed = "nativeAotNuGetFeed";
     private const string DefaultNuGetFeed = "https://api.nuget.org/v3/index.json";
-    private const string LocalBuildDotNetFeed = "https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json";
+    private const string LocalBuildDotNetFeed = "https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet12/nuget/v3/index.json";
     internal const string GeneratedRdXmlFileName = "bdn_generated.rd.xml";
 
     private readonly NativeAotSettings settings;
@@ -95,7 +95,7 @@ protected override async ValueTask GenerateNuGetConfigAsync(ArtifactsPaths artif
 
     // The ILCompiler is restored either from a NuGet feed, or from a local runtime build (which also needs the dotnet nightly feed).
     private KeyValuePair<string, string>[] GetFeeds()
-        => settings.LocalIlcPackages is not null ? [new("local", settings.LocalIlcPackages.FullName), new("dotnet11", LocalBuildDotNetFeed)]
+        => settings.LocalIlcPackages is not null ? [new("local", settings.LocalIlcPackages.FullName), new("dotnet12", LocalBuildDotNetFeed)]
         : settings.NuGetFeedUrl.IsNotBlank() ? [new(NativeAotNuGetFeed, settings.NuGetFeedUrl!)]
         : [];
 

src/BenchmarkDotNet/Toolchains/NativeAot/CsProjNativeAotToolchain.cs

@@ -17,6 +17,8 @@ public sealed class CsProjNativeAotToolchain : CsProjNetToolchain
     public static readonly CsProjNativeAotToolchain Net10_0 = new(NativeAotRuntime.Net10_0, NativeAotSettings.Default);
     /// <summary>compiled as net11.0</summary>
     public static readonly CsProjNativeAotToolchain Net11_0 = new(NativeAotRuntime.Net11_0, NativeAotSettings.Default);
+    /// <summary>compiled as net12.0</summary>
+    public static readonly CsProjNativeAotToolchain Net12_0 = new(NativeAotRuntime.Net12_0, NativeAotSettings.Default);
 
     private CsProjNativeAotToolchain(NativeAotRuntime runtime, NativeAotSettings settings)
         : this(runtime, settings, Resolve(settings, runtime)) { }
@@ -49,6 +51,7 @@ public static CsProjNativeAotToolchain From(NativeAotRuntime runtime, NativeAotS
             9 => Net90,
             10 => Net10_0,
             11 => Net11_0,
+            12 => Net12_0,
             _ => new CsProjNativeAotToolchain(runtime, settings),
         };
     }

src/BenchmarkDotNet/Toolchains/NativeAot/NativeAotSettings.cs

@@ -8,7 +8,7 @@ namespace BenchmarkDotNet.Toolchains.NativeAot;
 
 public sealed record NativeAotSettings : DotNetCliSettings
 {
-    private const string LocalBuildIlCompilerVersion = "11.0.0-dev";
+    private const string LocalBuildIlCompilerVersion = "12.0.0-dev";
 
     public static readonly NativeAotSettings Default = new();
 

src/BenchmarkDotNet/Toolchains/NetCoreApp/CsProjCoreToolchain.cs

@@ -19,6 +19,7 @@ public sealed class CsProjCoreToolchain : CsProjNetToolchain
     public static readonly CsProjCoreToolchain NetCoreApp90 = new(CoreRuntime.Core90, NetCoreAppSettings.Default);
     public static readonly CsProjCoreToolchain NetCoreApp10_0 = new(CoreRuntime.Core10_0, NetCoreAppSettings.Default);
     public static readonly CsProjCoreToolchain NetCoreApp11_0 = new(CoreRuntime.Core11_0, NetCoreAppSettings.Default);
+    public static readonly CsProjCoreToolchain NetCoreApp12_0 = new(CoreRuntime.Core12_0, NetCoreAppSettings.Default);
 
     private CsProjCoreToolchain(CoreRuntime runtime, NetCoreAppSettings settings)
         : this(runtime, settings, Resolve(settings, runtime)) { }
@@ -61,6 +62,7 @@ public static CsProjCoreToolchain From(CoreRuntime runtime, NetCoreAppSettings s
             (9, 0) => NetCoreApp90,
             (10, 0) => NetCoreApp10_0,
             (11, 0) => NetCoreApp11_0,
+            (12, 0) => NetCoreApp12_0,
             _ => new CsProjCoreToolchain(runtime, settings),
         };
     }

src/BenchmarkDotNet/Toolchains/R2R/CsProjR2RToolchain.cs

@@ -11,6 +11,7 @@ public sealed class CsProjR2RToolchain : CsProjNetToolchain
     public static readonly CsProjR2RToolchain R2R90 = new(R2RRuntime.Net90, R2RSettings.Default);
     public static readonly CsProjR2RToolchain R2R10_0 = new(R2RRuntime.Net10_0, R2RSettings.Default);
     public static readonly CsProjR2RToolchain R2R11_0 = new(R2RRuntime.Net11_0, R2RSettings.Default);
+    public static readonly CsProjR2RToolchain R2R12_0 = new(R2RRuntime.Net12_0, R2RSettings.Default);
 
     private CsProjR2RToolchain(R2RRuntime runtime, R2RSettings settings)
         : this(runtime, settings, Resolve(settings, runtime)) { }
@@ -42,6 +43,7 @@ public static CsProjR2RToolchain From(R2RRuntime runtime, R2RSettings settings)
             9 => R2R90,
             10 => R2R10_0,
             11 => R2R11_0,
+            12 => R2R12_0,
             _ => new CsProjR2RToolchain(runtime, settings),
         };
     }

src/BenchmarkDotNet/Toolchains/Wasm/CsProjMonoWasmAotToolchain.cs

@@ -9,6 +9,7 @@ public sealed class CsProjMonoWasmAotToolchain : CsProjWasmToolchain
     public static readonly CsProjMonoWasmAotToolchain Net90 = new(MonoWasmAotRuntime.Net90, WasmSettings.Default);
     public static readonly CsProjMonoWasmAotToolchain Net10_0 = new(MonoWasmAotRuntime.Net10_0, WasmSettings.Default);
     public static readonly CsProjMonoWasmAotToolchain Net11_0 = new(MonoWasmAotRuntime.Net11_0, WasmSettings.Default);
+    public static readonly CsProjMonoWasmAotToolchain Net12_0 = new(MonoWasmAotRuntime.Net12_0, WasmSettings.Default);
 
     private CsProjMonoWasmAotToolchain(MonoWasmAotRuntime runtime, WasmSettings settings)
         : base("MonoWasmAot", runtime, settings, aot: true, useCoreClrRuntime: false) { }
@@ -25,6 +26,7 @@ public static CsProjMonoWasmAotToolchain From(MonoWasmAotRuntime runtime, WasmSe
             9 => Net90,
             10 => Net10_0,
             11 => Net11_0,
+            12 => Net12_0,
             _ => new CsProjMonoWasmAotToolchain(runtime, settings),
         };
     }

src/BenchmarkDotNet/Toolchains/Wasm/CsProjMonoWasmToolchain.cs

@@ -9,6 +9,7 @@ public sealed class CsProjMonoWasmToolchain : CsProjWasmToolchain
     public static readonly CsProjMonoWasmToolchain Net90 = new(MonoWasmRuntime.Net90, WasmSettings.Default);
     public static readonly CsProjMonoWasmToolchain Net10_0 = new(MonoWasmRuntime.Net10_0, WasmSettings.Default);
     public static readonly CsProjMonoWasmToolchain Net11_0 = new(MonoWasmRuntime.Net11_0, WasmSettings.Default);
+    public static readonly CsProjMonoWasmToolchain Net12_0 = new(MonoWasmRuntime.Net12_0, WasmSettings.Default);
 
     private CsProjMonoWasmToolchain(MonoWasmRuntime runtime, WasmSettings settings)
         : base("MonoWasm", runtime, settings, aot: false, useCoreClrRuntime: false) { }
@@ -25,6 +26,7 @@ public static CsProjMonoWasmToolchain From(MonoWasmRuntime runtime, WasmSettings
             9 => Net90,
             10 => Net10_0,
             11 => Net11_0,
+            12 => Net12_0,
             _ => new CsProjMonoWasmToolchain(runtime, settings),
         };
     }

templates/templates/BenchmarkDotNet.BenchmarkProjectTemplate.CSharp/.template.config/template.json

@@ -34,6 +34,10 @@
       "description": "The target framework for the project.",
       "datatype": "choice",
       "choices": [
+        {
+          "choice": "net12.0",
+          "description": ".NET 12"
+        },
         {
           "choice": "net11.0",
           "description": ".NET 11"

templates/templates/BenchmarkDotNet.BenchmarkProjectTemplate.FSharp/.template.config/template.json

@@ -34,6 +34,10 @@
       "description": "The target framework for the project.",
       "datatype": "choice",
       "choices": [
+        {
+          "choice": "net12.0",
+          "description": ".NET 12"
+        },
         {
           "choice": "net11.0",
           "description": ".NET 11"

templates/templates/BenchmarkDotNet.BenchmarkProjectTemplate.VB/.template.config/template.json

@@ -34,6 +34,10 @@
       "description": "The target framework for the project.",
       "datatype": "choice",
       "choices": [
+        {
+          "choice": "net12.0",
+          "description": ".NET 12"
+        },
         {
           "choice": "net11.0",
           "description": ".NET 11"