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Copilot review overview
🟢 Approval recommended
No unresolved issues were identified that would block approval.
Review tier: Lite
Findings: None
What changed in this PR
Updates partial ReadyToRun compilation so hardware-intrinsic methods remain available on targets without runtime code generation, while preserving profile filtering elsewhere.
Changes:
- Bypasses profile exclusion for hardware intrinsics on no-JIT targets.
- Adds Wasm regression coverage for
PackedSimd,WasmBase, and non-intrinsic methods. - Allows tests to simulate both JIT-capable and non-JIT targets.
| File | Description |
|---|---|
| src/coreclr/tools/aot/ILCompiler.ReadyToRun/Compiler/ReadyToRunSingleAssemblyCompilationModuleGroup.cs | Updated as part of this pull request. |
| src/coreclr/tools/aot/ILCompiler.ReadyToRun.Tests/WasmArgumentLayoutTests.cs | Updated as part of this pull request. |
jkotas
approved these changes
Sep 16, 2026
jkotas
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September 16, 2026 05:14
jkotas
reviewed
Sep 16, 2026
jkotas
self-requested a review
September 16, 2026 05:56
This was referenced Sep 16, 2026
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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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Copilot review overview
🟡 Changes recommended
Add regression coverage for partial no-JIT compilations with profiles, including non-intrinsic filtering.
Get a fresh assessment by requesting another Copilot review.
Review tier: Lite
Findings: 1
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Summary
This is related to #132825, where the affected compilation mode was observed, but it does not fully resolve that issue.
Validation
./build.sh clr+libs+hostPATH=/opt/homebrew/bin:$PATH ./build.sh clr+libs -os browser -arch wasm -c Debug -cmakeargs "-DCMAKE_CXX_FLAGS=-Wno-unguarded-availability-new"PATH=/opt/homebrew/bin:$PATH ./build.sh clr+libs -os browser -arch wasm -c Release -cmakeargs "-DCMAKE_CXX_FLAGS=-Wno-unguarded-availability-new"ILCompiler.ReadyToRun.TestsDebug and Release builds forbrowser-wasmExact repro command:
crossgen2 System.Private.CoreLib.dll \ -r '<browser-wasm runtime pack>/*.dll' \ --targetarch:wasm \ --targetos:browser \ --partial \ --out:System.Private.CoreLib.wasmR2RDump --entrypointsmethod counts:PackedSimdWasmBaseNote
This pull request description was generated with GitHub Copilot.