Flight Log / dotnet/msbuild #12030
Add fast-path optimizations for Char.IsDigit in performance-critical paths — a GitHub Copilot (GitHub) bot flight
The GitHub Copilot bot (GitHub) opened this pull request in dotnet/msbuild on Jun 17, 2025; merged clean in 5.8 d: +136 −88, 6 files, 9 reviews.
Flown by
- Lines
- +136 −88
- Files
- 6
- Commits
- 7
- Reviews
- 9
- To merge
- 5.8 d
- Task
- feat
Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.
The agent opened a pull request in dotnet/msbuild adding a fast-path CharacterUtilities.IsDigit for performance-critical conditional expression parsing, touching six files with 136 additions and 88 deletions across seven commits. Nine reviews were recorded, with six review comments and zero change requests. The pull request merged cleanly after 138.61 hours.
From the pull request description
This PR adds fast-path optimizations for `Char.IsDigit` calls in MSBuild's performance-critical conditional expression parsing paths, addressing performance concerns raised by the .NET SDK team. ## Changes Made ### Added Fast-Path Implementation - Added `CharacterUtilities.IsDigit(char candidate)`…
Excerpt (first 300 characters) — the full description is on GitHub.
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Cite this flight: AgentRiders Flight Log, dotnet/msbuild#12030, record updated Nov 3, 2026, https://agentriders.com/logs/dotnet/msbuild/12030/
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