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Ensure mono-llvm handles char as a simd element type

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Update the vector types to support having char as the element type #128116

Ensure mono-llvm handles char as a simd element type
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Azure Pipelines / runtime (Build browser-wasm linux Release LibraryTests_Smoke_AOT) failed May 15, 2026 in 28m 50s

Build browser-wasm linux Release LibraryTests_Smoke_AOT failed

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Check failure on line 688 in src/mono/wasm/build/WasmApp.Common.targets

See this annotation in the file changed.

@azure-pipelines azure-pipelines / runtime (Build browser-wasm linux Release LibraryTests_Smoke_AOT)

src/mono/wasm/build/WasmApp.Common.targets#L688

src/mono/wasm/build/WasmApp.Common.targets(688,5): error : (NETCORE_ENGINEERING_TELEMETRY=Build) Precompiling failed for /__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/aot-instances.dll with exit code 1.
Executing: /__w/1/s/artifacts/bin/mono/browser.wasm.Release/cross/browser-wasm/mono-aot-cross "--wasm-exceptions" "--debug" "--llvm" "--aot=no-opt,static,direct-icalls,deterministic,_child,mattr=simd,nodebug,llvm-path=/__w/1/s/src/mono/browser/emsdk/bin/,static,dedup-include=aot-instances.dll,trimming-eligible-methods-outfile=/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/tokens/aot_instances_dll_compiled_methods.txt,llvmonly,interp,asmonly,llvm-outfile=/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-instances.dll.bc.tmp,temp-path=/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-instances.dll.tmp" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Microsoft.DotNet.XHarness.TestRunners.Common.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Microsoft.DotNet.XHarness.TestRunners.Xunit.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Mono.Options.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/WasmTestRunner.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/xunit.runner.utility.netcoreapp10.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Castle.Core.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Microsoft.Diagnostics.Runtime.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Microsoft.DotNet.RemoteExecutor.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/xunit.assert.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Microsoft.DotNet.XUnitExtensions.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Moq.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/xunit.abstractions.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/xunit.core.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/xunit.execution.dotnet.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Reflection.TestModule.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Runtime.Serialization.Formatters.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.TestStructs.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/TestCollectibleAssembly.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/TestILAssembly.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/TestLoadAssembly.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/TestUtilities.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/TestUtilities.Unicode.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/Microsoft.Win32.Registry.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Collections.Immutable.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Collections.NonGeneric.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Collections.Specialized.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Collections.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.ComponentModel.Primitives.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.ComponentModel.TypeConverter.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.ComponentModel.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Console.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Diagnostics.DiagnosticSource.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Diagnostics.Process.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Diagnostics.TraceSource.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Linq.Expressions.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Linq.Queryable.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Linq.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Net.Http.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Net.Primitives.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Net.Requests.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.ObjectModel.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Private.Uri.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Private.Xml.Linq.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Private.Xml.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Reflection.TypeExtensions.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Runtime.CompilerServices.VisualC.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Runtime.InteropServices.JavaScript.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Runtime.Numerics.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Security.Claims.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Security.Cryptography.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Security.Principal.Windows.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Text.RegularExpressions.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Threading.Tasks.Parallel.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Threading.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-* Assertion: should not be reached at /__w/1/s/src/mono/mono/mini/simd-intrinsics.c:1017
publish/aot-in/System.Xml.Linq.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Private.CoreLib.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/System.Runtime.Tests.dll" "/__w/1/s/artifacts/obj/System.Runtime.Tests/Release/net11.0-browser/browser-wasm/wasm/for-publish/aot-in/aot-instances.dll"