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2025/01-13: Add report
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‎2025/2025-01-13-report.org

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#+title: Weekly report for 7th of January to 13th of January 2025
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#+author: Philip Herron, Pierre-Emmanuel Patry, Arthur Cohen
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#+date: 2025-01-13
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** Overview
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Thanks again to [[https://opensrcsec.com/][Open Source Security, inc]] and [[https://www.embecosm.com/][Embecosm]] for their ongoing support for this project.
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- Lots of work on three milestones at the moment, close to having them finished
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- Auto traits
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- Remaining built-in derive macros
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- More lang item stuff
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- A lot of type system and codegen fixes by Philip
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- Some more name resolution fixes
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- Will then switch to error propagation expressions which are a big hurdle in core/std
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** Completed Activities
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- gccrs: match arms are a LUB [[https://github.com/rust-gcc/gccrs/pull/3360][PR3360]]
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- nr2.0: Resolve `Self` inside impl blocks [[https://github.com/rust-gcc/gccrs/pull/3359][PR3359]]
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- gccrs: fix ICE with hir dump on closure [[https://github.com/rust-gcc/gccrs/pull/3358][PR3358]]
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- gccrs: cleanup our enum type layout to be closer to rustc [[https://github.com/rust-gcc/gccrs/pull/3357][PR3357]]
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- gccrs: fix ICE in borrows to invalid expressions [[https://github.com/rust-gcc/gccrs/pull/3356][PR3356]]
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- gccrs: add support for lang_item eq and PartialEq trait [[https://github.com/rust-gcc/gccrs/pull/3347][PR3347]]
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- nr2.0: Improve default and top-level resolvers [[https://github.com/rust-gcc/gccrs/pull/3332][PR3332]]
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- Visit the trait paths of trait implementations [[https://github.com/rust-gcc/gccrs/pull/3331][PR3331]]
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- Allow float type to be casted as integer type [[https://github.com/rust-gcc/gccrs/pull/3319][PR3319]]
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- gccrs: improve mutability checks [[https://github.com/rust-gcc/gccrs/pull/3311][PR3311]]
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- Add `ForeverStackStore` [[https://github.com/rust-gcc/gccrs/pull/3251][PR3251]]
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- testsuite: Fix missing handling of little endian. [[https://github.com/rust-gcc/gccrs/pull/2805][PR2805]]
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- Add `try` intrinsics [[https://github.com/rust-gcc/gccrs/pull/2614][PR2614]]
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*** Contributors this week
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- [[https://github.com/liushuyu][Zixing Liu]]
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- [[https://github.com/nobel-sh][Nobel Singh]]
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- [[https://github.com/powerboat9][Owen Avery]]
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- [[https://github.com/philberty][Philip Herron]]
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- [[https://github.com/cohenarthur][Arthur Cohen]]
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- [[https://github.com/P-E-P][Pierre-Emmanuel Patry]]
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*** Overall Task Status
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| Category | Last Week | This Week | Delta |
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|-------------+-----------+-----------+-------|
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| TODO | 308 | 306 | -2 |
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| In Progress | 88 | 93 | +5 |
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| Completed | 922 | 925 | +3 |
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*** Bugs
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| Category | Last Week | This Week | Delta |
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|-------------+-----------+-----------+-------|
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| TODO | 110 | 107 | -3 |
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| In Progress | 38 | 41 | +2 |
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| Completed | 458 | 460 | +2 |
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*** Test Cases
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| TestCases | Last Week | This Week | Delta |
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|-----------+-----------+-----------+-------|
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| Passing | 9329 | 9407 | +78 |
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| Failed | - | - | - |
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| XFAIL | 262 | 206 | -60 |
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| XPASS | | | |
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*** Milestones Progress
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| Milestone | Last Week | This Week | Delta | Start Date | Completion Date | Target | Target GCC |
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|-----------------------------------|------------|------------|-------|---------------|-----------------|---------------|------------|
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| Name resolution 2.0 rework | 14% | 20% | - | 1st Jun 2024 | - | 1st Apr 2025 | GCC 15.1 |
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| Macro expansion | 33% | 33% | - | 1st Jun 2024 | - | 1st Jan 2025 | GCC 15.1 |
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| Lang items | 90% | 100% | +10% | 1st Jul 2024 | 10th Jan 2025 | 21st Nov 2024 | GCC 15.1 |
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| Auto traits improvements | 60% | 60% | - | 15th Sep 2024 | - | 21st Dec 2024 | GCC 15.1 |
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| Remaining typecheck issues | 88% | 88% | - | 21st Oct 2024 | - | 1st Mar 2025 | GCC 15.1 |
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| cfg-core | 0% | 0% | - | 1st Dec 2024 | - | 1st Mar 2025 | GCC 15.1 |
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| Codegen fixes | 0% | 0% | - | 7th Oct 2024 | - | 1st Mar 2025 | GCC 15.1 |
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| Upcoming Milestone | Last Week | This Week | Delta | Start Date | Completion Date | Target | Target GCC |
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|-----------------------------------|------------|------------|-------|---------------|-----------------|---------------|------------|
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| black_box intrinsic | 0% | 0% | - | 28th Oct 2024 | - | 28th Jan 2025 | GCC 15.1 |
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| alloc parser issues | 100% | 100% | - | 7th Jan 2025 | 31st Jun 2024 | 28th Jan 2025 | GCC 15.1 |
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| cfg-rfl | 0% | 0% | - | 7th Jan 2025 | - | 15th Feb 2025 | GCC 15.1 |
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| Question mark operator | 0% | 0% | - | 15th Dec 2024 | - | 21st Feb 2025 | GCC 15.1 |
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| let-else | 0% | 0% | - | 28th Jan 2025 | - | 28th Feb 2025 | GCC 15.1 |
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| Specialization | 0% | 0% | - | 1st Jan 2025 | - | 1st Mar 2025 | GCC 15.1 |
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| Inline assembly | 100% | 100% | - | 1st Jun 2024 | 26th Aug 2024 | 15th Sep 2024 | GCC 15.1 |
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| Borrow checker improvements | 100% | 100% | - | 1st Jun 2024 | 26th Aug 2024 | 15th Sep 2024 | GCC 15.1 |
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| Rustc Testsuite Adaptor | 0% | 0% | - | 1st Jun 2024 | - | 15th Sep 2024 | GCC 15.1 |
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| Unstable RfL features | 0% | 0% | - | 7th Jan 2025 | - | 1st Mar 2025 | GCC 15.1 |
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| Explicit generics with impl Trait | 0% | 0% | - | 28th Feb 2025 | - | 28th Mar 2025 | GCC 15.1 |
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| Downgrade to Rust 1.49 | 0% | 0% | - | - | - | 1st Apr 2025 | GCC 15.1 |
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| offset_of!() builtin macro | 0% | 0% | - | 15th Mar 2025 | - | 15th May 2025 | GCC 15.1 |
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| Generic Associated Types | 0% | 0% | - | 15th Mar 2025 | - | 15th Jun 2025 | GCC 16.1 |
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| RfL const generics | 0% | 0% | - | 1st May 2025 | - | 15th Jun 2025 | GCC 16.1 |
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| frontend plugin hooks | 0% | 0% | - | 15th May 2025 | - | 7th Jul 2025 | GCC 16.1 |
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| Handling the testsuite issues | 0% | 0% | - | 15th Sep 2024 | - | 15th Sep 2025 | GCC 16.1 |
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| std parser issues | 100% | 100% | - | 7th Jan 2025 | 31st Jun 2024 | 28th Jan 2025 | GCC 16.1 |
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| main shim | 0% | 0% | - | 28th Jul 2025 | - | 15th Sep 2025 | GCC 16.1 |
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| Past Milestone | Last Week | This Week | Delta | Start Date | Completion Date | Target | Target GCC |
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|-----------------------------------+------------+------------+-------+---------------+-----------------+---------------|------------|
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| Data Structures 1 - Core | 100% | 100% | - | 30th Nov 2020 | 27th Jan 2021 | 29th Jan 2021 | GCC 14.1 |
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| Control Flow 1 - Core | 100% | 100% | - | 28th Jan 2021 | 10th Feb 2021 | 26th Feb 2021 | GCC 14.1 |
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| Data Structures 2 - Generics | 100% | 100% | - | 11th Feb 2021 | 14th May 2021 | 28th May 2021 | GCC 14.1 |
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| Data Structures 3 - Traits | 100% | 100% | - | 20th May 2021 | 17th Sep 2021 | 27th Aug 2021 | GCC 14.1 |
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| Control Flow 2 - Pattern Matching | 100% | 100% | - | 20th Sep 2021 | 9th Dec 2021 | 29th Nov 2021 | GCC 14.1 |
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| Macros and cfg expansion | 100% | 100% | - | 1st Dec 2021 | 31st Mar 2022 | 28th Mar 2022 | GCC 14.1 |
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| Imports and Visibility | 100% | 100% | - | 29th Mar 2022 | 13th Jul 2022 | 27th May 2022 | GCC 14.1 |
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| Const Generics | 100% | 100% | - | 30th May 2022 | 10th Oct 2022 | 17th Oct 2022 | GCC 14.1 |
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| Initial upstream patches | 100% | 100% | - | 10th Oct 2022 | 13th Nov 2022 | 13th Nov 2022 | GCC 14.1 |
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| Upstream initial patchset | 100% | 100% | - | 13th Nov 2022 | 13th Dec 2022 | 19th Dec 2022 | GCC 14.1 |
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| Update GCC's master branch | 100% | 100% | - | 1st Jan 2023 | 21st Feb 2023 | 3rd Mar 2023 | GCC 14.1 |
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| Final set of upstream patches | 100% | 100% | - | 16th Nov 2022 | 1st May 2023 | 30th Apr 2023 | GCC 14.1 |
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| Borrow Checking 1 | 100% | 100% | - | TBD | 8th Jan 2024 | 15th Aug 2023 | GCC 14.1 |
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| Procedural Macros 1 | 100% | 100% | - | 13th Apr 2023 | 6th Aug 2023 | 6th Aug 2023 | GCC 14.1 |
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| GCC 13.2 Release | 100% | 100% | - | 13th Apr 2023 | 22nd Jul 2023 | 15th Jul 2023 | GCC 14.1 |
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| GCC 14 Stage 3 | 100% | 100% | - | 1st Sep 2023 | 20th Sep 2023 | 1st Nov 2023 | GCC 14.1 |
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| GCC 14.1 Release | 100% | 100% | - | 2nd Jan 2024 | 2nd Jun 2024 | 15th Apr 2024 | GCC 14.1 |
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| format_args!() support | 100% | 100% | - | 15th Feb 2024 | - | 1st Apr 2024 | GCC 14.1 |
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| GCC 14.2 | 100% | 100% | - | 7th Jun 2024 | 15th Jun 2024 | 15th Jun 2024 | GCC 14.2 |
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| GCC 15.1 | 100% | 100% | - | 21st Jun 2024 | 31st Jun 2024 | 1st Jul 2024 | GCC 15.1 |
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| Unhandled attributes | 100% | 100% | - | 1st Jul 2024 | 15th Aug 2024 | 15th Aug 2024 | GCC 15.1 |
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| Deref and DerefMut improvements | 100% | 100% | - | 28th Sep 2024 | 25th Oct 2024 | 28th Dec 2024 | GCC 15.1 |
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| Indexing fixes | 100% | 100% | - | 21st Jul 2024 | 25th Dec 2024 | 15th Nov 2024 | GCC 15.1 |
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| Iterator fixes | 100% | 100% | - | 21st Jul 2024 | 25th Dec 2024 | 15th Nov 2024 | GCC 15.1 |
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*** Risks
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We have now entered Stage 3 of GCC development, and all of the patches we needed to get upstreamed have been upstreamed. The risk present in this table is no longer present.
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| Risk | Impact (1-3) | Likelihood (0-10) | Risk (I * L) | Mitigation |
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|-----------------------------------------------+--------------+-------------------+--------------+-----------------------------------------------------------------|
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| Missing features for GCC 15.1 deadline | 2 | 0 | 0 | Start working on required features as early as July (6mo ahead) |
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** Planned Activities
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- Finish all built-in derive macros
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- Start work on error propagation expression
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- Continue fixing remaining failing test for name resolution 2.0
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** Detailed changelog

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