[Perf] Linux/x64: 1 Regression on 4/27/2026 12:32:32 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a9bbe530c25e60e1da9cf29f3646062498d69b28](https://github.com/dotnet/runtime/commit/a9bbe530c25e60e1da9cf29f3646062498d69b28)
Compare | [a8f71804178cb4fecd150e45082359dd11d71a76](https://github.com/dotnet/runtime/commit/a8f71804178cb4fecd150e45082359dd11d71a76)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a9bbe530c25e60e1da9cf29f3646062498d69b28...a8f71804178cb4fecd150e45082359dd11d71a76)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in GuardedDevirtualization.TwoClassVirtual

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [Call - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

![graph]()
[Test Report]()

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'GuardedDevirtualization.TwoClassVirtual*'
```

### GuardedDevirtualization.TwoClassVirtual.Call(testInput: pB = 0.60)

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)