Vector saturate tests failing on arm32 #122185
Description
----- start Thu Dec 4 13:34:32 UTC 2025 =============== To repro directly: =====================================================
pushd .
/root/helix/work/correlation/dotnet exec --runtimeconfig System.Runtime.Intrinsics.Tests.runtimeconfig.json --depsfile System.Runtime.Intrinsics.Tests.deps.json xunit.console.dll System.Runtime.Intrinsics.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
popd
===========================================================================================================
/root/helix/work/workitem/e /root/helix/work/workitem/e
Discovering: System.Runtime.Intrinsics.Tests (method display = ClassAndMethod, method display options = None)
Discovered: System.Runtime.Intrinsics.Tests (found 2430 of 2475 test cases)
Starting: System.Runtime.Intrinsics.Tests (parallel test collections = on [2 threads], stop on fail = off)
System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.SubtractSaturateIntPtrTest [FAIL]
Assert.Equal() Failure: Values differ
Expected: -2147483648
Actual: 2147483647
Stack Trace:
/_/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector256Tests.cs(8062,0): at System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.SubtractSaturateToMinTest[T](T start)
/_/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector256Tests.cs(8092,0): at System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.SubtractSaturateIntPtrTest()
/_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(36,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs(57,0): at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.AddSaturateIntPtrTest [FAIL]
Assert.Equal() Failure: Values differ
Expected: -2147483648
Actual: 2147483647
Stack Trace:
/_/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector256Tests.cs(7892,0): at System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.AddSaturateToMinTest[T](T start)
/_/src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector256Tests.cs(7922,0): at System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.AddSaturateIntPtrTest()
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
/_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs(36,0): at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
/_/src/libraries/System.Private.CoreLib/src/System/Reflection/RuntimeMethodInfo.cs(134,0): at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
...
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1220228
Build error leg or test failing: System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.AddSaturateInt32Test
Pull request: #122147
Error Message
Fill the error message using step by step known issues guidance.
{
"ErrorMessage": "System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.SubtractSaturateIntPtrTest [FAIL]",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1220228
Error message validated: [System.Runtime.Intrinsics.Tests.Vectors.Vector256Tests.SubtractSaturateIntPtrTest [FAIL]]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 12/4/2025 5:34:12 PM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 48 | 49 | 49 |