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Rollup of 8 pull requests #134431

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r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

Gelbpunkt and others added 30 commits December 6, 2024 04:35
Signed-off-by: Jens Reidel <[email protected]>
- remove dependency on `TypeChecker`
- move to legacy fact generation module
- remove dependency on `TypeChecker`
- move to legacy fact generation module
- remove polonius module from liveness
- remove dependency on `TypeChecker`
- move to legacy fact generation module
- group facts emitted during typeck together
- integrate it within existing fact generation instead of being called
  in typeck
- simplify access fact extraction
- also remove single use fact emit functions in root fact generation
- integrate into `emit_facts` and remove from typeck
- use a consistent name for `TypeChecker`, which is usually referred to as `typeck`
- remove an incorrect doc comment
- remove a single-use local
- fix names
- fix ordering of arguments
since drain-on-drop behavior was removed those bounds
no longer serve a purpose
The checks in `is_eligible_for_coverage` include `is_fn_like`, but will also
exclude various function-like things that cannot possibly have coverage
instrumentation.
This patch dismantles what was left of `FunctionCoverage` in `map_data.rs`,
replaces `function_coverage_map` with a set, and overhauls how we prepare
covfun records for unused functions.
I wanted to move some ui tests around, which broke `test_valid` since it
was referencing a non-specific-purpose ui test.
Pass FnAbi to find_mir_or_eval_fn

 rust-lang/miri#4013 needs information from ``FnAbi``, hence it is passed to ``find_mir_or_eval_fn``.

r? ``@RalfJung``
Add a range argument to vec.extract_if

tracking issue: rust-lang#43244

This adds the range argument requested in rust-lang#43244 (comment)
…x-musl-tier-2, r=jieyouxu,Urgau,Kobzol

Promote powerpc64le-unknown-linux-musl to tier 2 with host tools

MCP: rust-lang/compiler-team#803

I'm using crosstool-ng for building a toolchain because GCC 9 from `musl-toolchain.sh` has float ABI issues (?) and can't compile LLVM, and writing a crosstool-ng config for a target feels less hacky than yet another target specific shell script. I also defined a kernel version, since there wasn't one specified before. If a lower version is desired, just let me know. I also tried to match the rust configure args with the loongarch64 musl tier 2 target.

The resulting compiler works fine, built with `DEPLOY=1 ./src/ci/docker/run.sh dist-powerpc64le-linux` and tested on Alpine Linux in a VM and on a bare metal POWER8 machine:
```
qemu-ppc64le:/tmp/rust-nightly-powerpc64le-unknown-linux-musl$ ash install.sh
install: creating uninstall script at /usr/local/lib/rustlib/uninstall.sh
install: installing component 'rustc'
install: installing component 'rust-std-powerpc64le-unknown-linux-musl'
install: installing component 'cargo'
install: installing component 'rustfmt-preview'
install: installing component 'rls-preview'
install: installing component 'rust-analyzer-preview'
install: installing component 'llvm-tools-preview'
install: installing component 'clippy-preview'
install: installing component 'miri-preview'
install: installing component 'rust-analysis-powerpc64le-unknown-linux-musl'
install: installing component 'llvm-bitcode-linker-preview'
install: WARNING: failed to run ldconfig. this may happen when not installing as root. run with --verbose to see the error

    rust installed.

qemu-ppc64le:~$ echo 'fn main() { println!("hello world"); }' > test.rs
qemu-ppc64le:~$ rustc test.rs
qemu-ppc64le:~$ ./test
hello world
qemu-ppc64le:~$ file test
test: ELF 64-bit LSB executable, 64-bit PowerPC or cisco 7500, OpenPOWER ELF V2 ABI, version 1 (SYSV), statically linked, BuildID[sha1]=596ee6abf9add487ebc54fb71c2076fb6faea013, with debug_info, not stripped
```

try-job: dist-powerpc64le-linux
…youxu

coverage: Dismantle `map_data.rs` by moving its responsibilities elsewhere

This is a series of incremental changes that combine to let us get rid of `coverageinfo/map_data.rs`, by moving all of its responsibilities into more appropriate places.

Some of the notable consequences are:

- We once again build the per-CGU file table on the fly while preparing individual covfun records, instead of building the whole table up-front. The up-front approach was introduced by rust-lang#117042 to work around various other problems in generating the covmap/covfun records, but subsequent cleanups have made that approach no longer necessary.
- Expression conversion and mapping-region conversion are now performed directly in `mapgen::covfun`, which should make future changes easier.
- We no longer insert unused function instances into the same map that is also used to track used function instances. This helps to decouple the handling of used vs unused functions.

---

There should be no meaningful change to compiler output. The file table is no longer sorted, because reordering it would invalidate the file indices stored in individual covfun records, but the table order should still be deterministic (albeit arbitrary).

There are some subsequent cleanups that I intend to investigate, but this is enough change for one PR.
…kh726

An octuple of polonius fact generation cleanups

This PR is extracted from rust-lang#134268 for easier review and contains its first 8 commits. They have already been reviewed by ```@jackh726``` over there.

r? ```@jackh726```
…=compiler-errors

Regression test for RPIT inheriting lifetime from projection

Regression test to close rust-lang#51525
…nur-ozkan

bootstrap: use specific-purpose ui test path for `test_valid` self-test

I wanted to move some ui tests around in rust-lang#134418, which broke `test_valid` since it was referencing two non-specific-purpose ui tests. This PR instead adds two dummy tests under `tests/ui/bootstrap/self-test/`, for that purpose specifically.

r? bootstrap
@rustbot rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Dec 17, 2024
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@bors r+ rollup=never p=5

@rustbot rustbot added the rollup A PR which is a rollup label Dec 17, 2024
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bors commented Dec 17, 2024

📌 Commit 65bdba6 has been approved by jieyouxu

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Dec 17, 2024
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bors commented Dec 17, 2024

🔒 Merge conflict

This pull request and the master branch diverged in a way that cannot be automatically merged. Please rebase on top of the latest master branch, and let the reviewer approve again.

How do I rebase?

Assuming self is your fork and upstream is this repository, you can resolve the conflict following these steps:

  1. git checkout rollup-yu90upf (switch to your branch)
  2. git fetch upstream master (retrieve the latest master)
  3. git rebase upstream/master -p (rebase on top of it)
  4. Follow the on-screen instruction to resolve conflicts (check git status if you got lost).
  5. git push self rollup-yu90upf --force-with-lease (update this PR)

You may also read Git Rebasing to Resolve Conflicts by Drew Blessing for a short tutorial.

Please avoid the "Resolve conflicts" button on GitHub. It uses git merge instead of git rebase which makes the PR commit history more difficult to read.

Sometimes step 4 will complete without asking for resolution. This is usually due to difference between how Cargo.lock conflict is handled during merge and rebase. This is normal, and you should still perform step 5 to update this PR.

Error message
Auto-merging src/tools/miri/src/machine.rs
CONFLICT (content): Merge conflict in src/tools/miri/src/machine.rs
Auto-merging compiler/rustc_metadata/src/native_libs.rs
Removing compiler/rustc_codegen_llvm/src/coverageinfo/map_data.rs
Removing compiler/rustc_borrowck/src/type_check/liveness/polonius.rs
Automatic merge failed; fix conflicts and then commit the result.

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Dec 17, 2024
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bors commented Dec 17, 2024

☔ The latest upstream changes (presumably #134381) made this pull request unmergeable. Please resolve the merge conflicts.

@jieyouxu jieyouxu deleted the rollup-yu90upf branch December 18, 2024 08:07
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