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2023-05-monthly: Add May 2023 monthly report
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‎_posts/2023-06-06-2023-05-monthly-report.md‎

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---
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layout: post
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title: "May 2023 Monthly report"
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author: Philip Herron and Arthur Cohen
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tags:
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- monthly-report
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---
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## Overview
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Thanks again to [Open Source Security, inc](https://opensrcsec.com/) and
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[Embecosm](https://www.embecosm.com/) for their ongoing support for this
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project.
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### Milestone Progress
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The GCC 13.2 release date is approaching, and we are hard at work trying
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to get `core` integrated to `gccrs`. We are progressing a lot on our AST
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pipeline, with many contributions from external contributors as well as
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work from Pierre-Emmanuel and Arthur. We are still trying to figure out
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some of the steps necessary for integrating the Rust 1.49 version of
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`core` with GCC's build system, and how to properly submit these
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patches upstream in time for reviewing. This year's Google Summer of
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Code is also starting, with our two students getting started on their
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projects this week. This work will be happening in public on our GitHub
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repository and our Zulip chat, which you can join for updates.
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We are also getting things ready for submitting a talk to EuroRust in
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October - if you have any subject you'd like us to talk about when we
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meet there, feel free to send us a message or email! The subject of the
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talk is not fully defined yet and we are open to all ideas.
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### Community call
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We will have our next monthly community call on the 12th of June 2023.
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You can subscribe to our calendar to see when the next one will be held.
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The call is open to everyone, even if you would just like to sit-in and
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listen. You can also subscribe to our
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[mailing-list](https://gcc.gnu.org/mailman/listinfo/gcc-rust) or join
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our [Zulip chat](https://gcc-rust.zulipchat.com) to be notified of
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upcoming events.
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- Calendar ID:
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7060a0923ffebd3cb52b1afef35a28ff7b64f05962c9af84c23b1847f1f5f894@group.calendar.google.com
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- [Google calendar
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link](https://calendar.google.com/calendar/embed?src=7060a0923ffebd3cb52b1afef35a28ff7b64f05962c9af84c23b1847f1f5f894%40group.calendar.google.com)
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- [iCal
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link](https://calendar.google.com/calendar/ical/7060a0923ffebd3cb52b1afef35a28ff7b64f05962c9af84c23b1847f1f5f894%40group.calendar.google.com/public/basic.ics)
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## Completed Activities
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- derive: Add proper derive(Clone) for unions
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[PR2256](https://github.com/rust-gcc/gccrs/pull/2256)
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- derive: Add \#\[derive(Clone)\] for regular structs
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[PR2255](https://github.com/rust-gcc/gccrs/pull/2255)
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- gccrs: get rid of useless helper class and fix header usage
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[PR2254](https://github.com/rust-gcc/gccrs/pull/2254)
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- Add \#\[derive(Copy)\] support
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[PR2253](https://github.com/rust-gcc/gccrs/pull/2253)
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- macro-invoc-lexer: Add Copyright header.
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[PR2251](https://github.com/rust-gcc/gccrs/pull/2251)
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- Properly match delimiters
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[PR2249](https://github.com/rust-gcc/gccrs/pull/2249)
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- gccrs: Fix cast site to not miss type-unifications
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[PR2248](https://github.com/rust-gcc/gccrs/pull/2248)
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- Add missing name-resolution and hir lowering to Stmts
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[PR2247](https://github.com/rust-gcc/gccrs/pull/2247)
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- Fix handling of single fragments in repetitions
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[PR2243](https://github.com/rust-gcc/gccrs/pull/2243)
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- Avoid invalid metavariable substitutions
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[PR2241](https://github.com/rust-gcc/gccrs/pull/2241)
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- Add Spans to procedural macros
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[PR2240](https://github.com/rust-gcc/gccrs/pull/2240)
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- gccrs: remove stray semicolon
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[PR2237](https://github.com/rust-gcc/gccrs/pull/2237)
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- Bug fixes autoderef cycles using derefs
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[PR2235](https://github.com/rust-gcc/gccrs/pull/2235)
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- enr: Cleanup \#\[macro_use\] accumulation
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[PR2231](https://github.com/rust-gcc/gccrs/pull/2231)
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- Only check first item of cfg_attr attribute as predicate
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[PR2230](https://github.com/rust-gcc/gccrs/pull/2230)
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- Fix macro resolutions in middle of multiple nested
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macro_use modules
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[PR2226](https://github.com/rust-gcc/gccrs/pull/2226)
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- Add operator== for Optional.
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[PR2224](https://github.com/rust-gcc/gccrs/pull/2224)
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- Handle keyword metavariables during macro expansion
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[PR2221](https://github.com/rust-gcc/gccrs/pull/2221)
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- Change return type of `token_id_keyword_string`
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[PR2219](https://github.com/rust-gcc/gccrs/pull/2219)
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- derive: Add base for builtin derives and \#\[derive(Clone)\]
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[PR2216](https://github.com/rust-gcc/gccrs/pull/2216)
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- ast: Add `outer_attrs` to all `Item`s
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[PR2215](https://github.com/rust-gcc/gccrs/pull/2215)
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- dump: Dump `TupleIndexExpr`s
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[PR2214](https://github.com/rust-gcc/gccrs/pull/2214)
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- Improve Optional\<T\> implementation
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[PR2213](https://github.com/rust-gcc/gccrs/pull/2213)
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- Improve Optional\<T&\> implementation
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[PR2212](https://github.com/rust-gcc/gccrs/pull/2212)
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- Allow hashing Optional\<T\>
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[PR2211](https://github.com/rust-gcc/gccrs/pull/2211)
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- ast: Propagate type suffix
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[PR2210](https://github.com/rust-gcc/gccrs/pull/2210)
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- Address invalid little-endian-only testcases
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[PR2208](https://github.com/rust-gcc/gccrs/pull/2208)
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- Rework expression statement parsing
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[PR2206](https://github.com/rust-gcc/gccrs/pull/2206)
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- libproc_macro: Change rust literal internals
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[PR2204](https://github.com/rust-gcc/gccrs/pull/2204)
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- Add missing coercion site logic
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[PR2202](https://github.com/rust-gcc/gccrs/pull/2202)
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- Handle keywords in macro fragments
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[PR2200](https://github.com/rust-gcc/gccrs/pull/2200)
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- Fix "default unsafe fn …" parsing
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[PR2199](https://github.com/rust-gcc/gccrs/pull/2199)
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- Fix ICE with unit expressions
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[PR2197](https://github.com/rust-gcc/gccrs/pull/2197)
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- gccrs: Add missing compile locals for constants and statics
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[PR2196](https://github.com/rust-gcc/gccrs/pull/2196)
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- Parse AST::AttrInputMacro attributes
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[PR2185](https://github.com/rust-gcc/gccrs/pull/2185)
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- Add AST::AttrInputMacro
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[PR2177](https://github.com/rust-gcc/gccrs/pull/2177)
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- Make key and key/value config options seperate
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[PR2175](https://github.com/rust-gcc/gccrs/pull/2175)
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- Fix tail expression stripping
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[PR2156](https://github.com/rust-gcc/gccrs/pull/2156)
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- Modularize libproc macro
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[PR2153](https://github.com/rust-gcc/gccrs/pull/2153)
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- builtin: Cleanup handling of builtin macros
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[PR2152](https://github.com/rust-gcc/gccrs/pull/2152)
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- Proc macro type
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[PR2150](https://github.com/rust-gcc/gccrs/pull/2150)
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- Fix out of bounds indexing while expanding macros with repetition
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[PR2141](https://github.com/rust-gcc/gccrs/pull/2141)
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- Handle nested \#\[macro_use\] modules properly
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[PR2131](https://github.com/rust-gcc/gccrs/pull/2131)
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- Added HIR::InlineAsm
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[PR1886](https://github.com/rust-gcc/gccrs/pull/1886)
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### Contributors this month
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- [Matthew Jasper](https://github.com/matthewjasper) (new
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contributor!)
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- [Owen Avery](https://github.com/powerboat9)
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- [Pierre-Emmanuel Patry](https://github.com/P-E-P)
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- [David Malcolm](https://github.com/davidmalcolm)
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- [mvvsmk](https://github.com/mvvsmk)
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### Overall Task Status
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| Category | Last Month | This Month | Delta |
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|-------------|------------|------------|-------|
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| TODO | 219 | 227 | +8 |
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| In Progress | 49 | 50 | +1 |
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| Completed | 639 | 670 | +31 |
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### Test Cases
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| TestCases | Last Month | This Month | Delta |
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|-----------|------------|------------|-------|
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| Passing | 7737 | 7924 | +187 |
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| Failed | \- | \- | \- |
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| XFAIL | 53 | 53 | +13 |
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| XPASS | \- | \- | \- |
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### Bugs
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| Category | Last Month | This Month | Delta |
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|-------------|------------|------------|-------|
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| TODO | 66 | 72 | +6 |
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| In Progress | 22 | 26 | +4 |
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| Completed | 304 | 327 | +23 |
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### Milestones Progress
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Note that the intrinsics milestone percentage on github is not
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representative: It shows a 73% completion rate, but does not take into
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account the tracking issues with dozens of unresolved items. Thus the
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percentage is computed using the sum of issues and tracked items done
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divided by the sums of issues and tracked items overall. Similarly, the
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Update GCC's master branch milestone contains a [tracking
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issue](https://github.com/rust-gcc/gccrs/issues/1705) containing over
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200 tasks. The percentage shown here takes this into account.
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| Milestone | Last Week | This Week | Delta | Start Date | Completion Date | Target |
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|-----------------------------------|-----------|-----------|-------|---------------|-----------------|---------------|
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| Data Structures 1 - Core | 100% | 100% | \- | 30th Nov 2020 | 27th Jan 2021 | 29th Jan 2021 |
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| Control Flow 1 - Core | 100% | 100% | \- | 28th Jan 2021 | 10th Feb 2021 | 26th Feb 2021 |
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| Data Structures 2 - Generics | 100% | 100% | \- | 11th Feb 2021 | 14th May 2021 | 28th May 2021 |
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| Data Structures 3 - Traits | 100% | 100% | \- | 20th May 2021 | 17th Sep 2021 | 27th Aug 2021 |
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| Control Flow 2 - Pattern Matching | 100% | 100% | \- | 20th Sep 2021 | 9th Dec 2021 | 29th Nov 2021 |
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| Macros and cfg expansion | 100% | 100% | \- | 1st Dec 2021 | 31st Mar 2022 | 28th Mar 2022 |
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| Imports and Visibility | 100% | 100% | \- | 29th Mar 2022 | 13th Jul 2022 | 27th May 2022 |
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| Const Generics | 100% | 100% | \- | 30th May 2022 | 10th Oct 2022 | 17th Oct 2022 |
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| Initial upstream patches | 100% | 100% | \- | 10th Oct 2022 | 13th Nov 2022 | 13th Nov 2022 |
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| Upstream initial patchset | 100% | 100% | \- | 13th Nov 2022 | 13th Dec 2022 | 19th Dec 2022 |
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| Update GCC's master branch | 100% | 100% | \- | 1st Jan 2023 | 21st Feb 2023 | 3rd Mar 2023 |
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| Final set of upstream patches | 96% | 100% | +4% | 16th Nov 2022 | 1st May 2023 | 30th Apr 2023 |
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| Borrow Checking 1 | 0% | 0% | \- | TBD | \- | 15th Aug 2023 |
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| AST Pipeline for libcore 1.49 | 20% | 51% | +31% | 13th Apr 2023 | \- | 1st Jul 2023 |
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| HIR Pipeline for libcore 1.49 | 40% | 53% | +13% | 13th Apr 2023 | \- | TBD |
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| Procedural Macros 1 | 45% | 70% | +25% | 13th Apr 2023 | \- | 6th Aug 2023 |
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| GCC 13.2 Release | 0% | 26% | +26% | 13th Apr 2023 | \- | 15th Jul 2023 |
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| GCC 14 Stage 3 | 0% | 0% | \- | TBD | \- | 1st Nov 2023 |
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| Rustc Testsuite Prerequisistes | 0% | 0% | \- | TBD | \- | 1st Sep 2023 |
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| Intrinsics and builtins | 18% | 18% | \- | 6th Sep 2022 | \- | TBD |
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| Const Generics 2 | 0% | 0% | \- | TBD | \- | TBD |
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| Rust-for-Linux compilation | 0% | 0% | \- | TBD | \- | TBD |
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### Testing project
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The testing project is on hold as we try and figure out some of the
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issues we're running into with GitHub and our various automations around
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it.
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## Planned Activities
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- Look at remaining AST issues for compiling `core`
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- Fix remaining type systems bugs for `core` 1.49
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- Look at procedural macro name resolution
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- Look at moving imports name resolution to Early Name Resolver
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## Detailed changelog

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