[Perf] Windows/x86: 1 Improvement on 7/27/2026 8:18:37 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [65b0190679e7afaea3c09bcfc474c55414403972](https://github.com/dotnet/runtime/commit/65b0190679e7afaea3c09bcfc474c55414403972)
Compare | [f8cf526f300e471f20d9899ba89bec84fdcea753](https://github.com/dotnet/runtime/commit/f8cf526f300e471f20d9899ba89bec84fdcea753)
Diff | [Diff](https://github.com/dotnet/runtime/compare/65b0190679e7afaea3c09bcfc474c55414403972...f8cf526f300e471f20d9899ba89bec84fdcea753)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Memory.Span<Int32>

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

• [Reverse - 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
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'System.Memory.Span*'
```

### System.Memory.Span<Int32>.Reverse(Size: 33)

#### 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)

Start with the benchmark source at src/benchmarks/micro/libraries/System.Memory/Span.cs lines 56-57, then run the provided benchmarks_ci.py command with the System.Memory.Span filter. Review the linked test report and compare the baseline and test results for Reverse(Size: 33); done means establishing how this automated performance result should be handled.

Written by the indexing model from the issue text.