[Perf] Windows/x86: 2 Improvements on 7/20/2026 2:22:01 PM +00:00

### Run Information

Name | Value
-- | --
Architecture | x86
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [563abf220847ed66cab58f0d7d166cb264874f40](https://github.com/dotnet/runtime/commit/563abf220847ed66cab58f0d7d166cb264874f40)
Compare | [73a9e0a51ed85481b7f03ca3f2696e020365afd6](https://github.com/dotnet/runtime/commit/73a9e0a51ed85481b7f03ca3f2696e020365afd6)
Diff | [Diff](https://github.com/dotnet/runtime/compare/563abf220847ed66cab58f0d7d166cb264874f40...73a9e0a51ed85481b7f03ca3f2696e020365afd6)
Configs | CompilationMode:tiered, RunKind:micro

### Improvements in System.Linq.Tests.Perf_Enumerable

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

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

| 191.97 ns | 164.90 ns | 0.86 | 0.05 | False | | |
|

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

| 191.80 ns | 165.33 ns | 0.86 | 0.03 | False | | |

![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.Linq.Tests.Perf_Enumerable*'
```

### System.Linq.Tests.Perf_Enumerable.AnyWithPredicate_LastElementMatches(input: Array)

#### ETL Files

#### Histogram

#### JIT Disasms

### System.Linq.Tests.Perf_Enumerable.AnyWithPredicate_LastElementMatches(input: List)

#### 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 entry in performance/src/benchmarks/micro/libraries/System.Linq/Perf.Enumerable.cs at lines 112-114, then run the provided benchmarks_ci.py command for Perf_Enumerable. Compare the generated report with the linked baseline and test results; the issue does not name a runtime source file or define an acceptance criterion beyond investigating the measured improvement.

Written by the indexing model from the issue text.