Rollup of 16 pull requests by JonathanBrouwer · Pull Request #157121 · rust-lang/rust

JonathanBrouwer · 2026-05-29T19:03:38Z

Successful merges:

resolve: Partially convert ambiguous_glob_imports lint into a hard error #149195 (resolve: Partially convert ambiguous_glob_imports lint into a hard error)
Some cleanups around passing extra lifetime params from the resolver to ast lowering #156960 (Some cleanups around passing extra lifetime params from the resolver to ast lowering)
definitions: remove DefPathTable, use LocalDefId instead of DefIndex #156963 (definitions: remove DefPathTable, use LocalDefId instead of DefIndex)
Eagerly resolve delegations in late resolution #157053 (Eagerly resolve delegations in late resolution)
NVPTX: Remove the unstable ptx linker flavor #157068 (NVPTX: Remove the unstable ptx linker flavor)
Various proc-macro related code cleanups #157076 (Various proc-macro related code cleanups)
add ABI check logic for wasm #157106 (add ABI check logic for wasm)
std::offload sharedmem #154835 (std::offload sharedmem)
Stabilize Path::is_empty #157065 (Stabilize Path::is_empty)
Improve suggestions for malformed deprecated attribute #157088 (Improve suggestions for malformed deprecated attribute)
Add the clflushopt x86 target feature #157098 (Add the clflushopt x86 target feature)
Add reproducibly failing tests for parallel frontend #157103 (Add reproducibly failing tests for parallel frontend)
Update target maintainer for x86_64-unknown-linux-none #157111 (Update target maintainer for x86_64-unknown-linux-none)
rustc_public: add with_cx() to CompilerInterface #157116 (rustc_public: add with_cx() to CompilerInterface)
ast_lowering: Simplify resolve_pin_drop_sugar_impl_item #157119 (ast_lowering: Simplify resolve_pin_drop_sugar_impl_item)
Cleanups around attribute target checking #157120 (Cleanups around attribute target checking)

Failed merges:

Some more per owner things #157100 (Some more per owner things)

r? @ghost

Create a similar rollup

…d named lifetimes

… so just encode the fields we need

This makes the proc-macro RPC protocol platform independent as necessary for running proc macros and rustc on different architectures.

This shrinks the proc-macro ABI a bit. Nothing on the client side needs to allocate handles. This will share the counters between proc-macros, which may cause us to run out of handles earlier, but 4 bilion handles per process is still a lot. Rust-analyzer might run out at some point, but it can recover by restarting the proc-macro-server, and it could already run out before this change anyway,

…s version shaped

`CLFLUSHOPT` is a standalone x86 CPUID feature (Intel Skylake+ / AMD Excavator+, ~2015) not part of any psABI microarchitecture level, so it needs its own unstable target feature, gated behind `clflushopt_target_feature`. This is the compiler half of exposing the `_mm_clflushopt` intrinsic; the stdarch half is blocked on this landing. Also bless two UI test references (check-cfg/target_feature and target-feature/invalid-attribute) that enumerate the full set of valid target features, since `clflushopt` is now part of that list.

Wire up runtime detection for the `clflushopt` feature: add it to the `is_x86_feature_detected!` feature list (gated on `clflushopt_target_feature`), enable it from CPUID leaf 7 EBX bit 23, and add it to the std_detect x86-specific dump test.

…sible

…error

JonathanBrouwer · 2026-05-29T19:03:56Z

@bors r+ rollup=never p=5

Trying commonly failed jobs
@bors try jobs=dist-various-1,test-various,x86_64-gnu-aux,x86_64-gnu-llvm-21-3,x86_64-msvc-1,aarch64-apple,x86_64-mingw-1,i686-msvc-2

rust-bors · 2026-05-29T19:03:59Z

📌 Commit 82471b6 has been approved by JonathanBrouwer

It is now in the queue for this repository.

rust-bors · 2026-05-29T19:04:06Z

⌛ Trying commit 82471b6 with merge d09cee5…

To cancel the try build, run the command @bors try cancel.

Workflow: https://github.com/rust-lang/rust/actions/runs/26656636426

Rollup of 16 pull requests try-job: dist-various-1 try-job: test-various try-job: x86_64-gnu-aux try-job: x86_64-gnu-llvm-21-3 try-job: x86_64-msvc-1 try-job: aarch64-apple try-job: x86_64-mingw-1 try-job: i686-msvc-2

…uwer Rollup of 16 pull requests Successful merges: - #149195 (resolve: Partially convert `ambiguous_glob_imports` lint into a hard error) - #156960 (Some cleanups around passing extra lifetime params from the resolver to ast lowering) - #156963 (definitions: remove `DefPathTable`, use `LocalDefId` instead of `DefIndex`) - #157053 (Eagerly resolve delegations in late resolution) - #157068 (NVPTX: Remove the unstable ptx linker flavor) - #157076 (Various proc-macro related code cleanups) - #157106 (add ABI check logic for wasm) - #154835 (std::offload sharedmem) - #157065 (Stabilize `Path::is_empty`) - #157088 (Improve suggestions for malformed deprecated attribute) - #157098 (Add the `clflushopt` x86 target feature) - #157103 (Add reproducibly failing tests for parallel frontend) - #157111 (Update target maintainer for x86_64-unknown-linux-none) - #157116 (rustc_public: add `with_cx()` to `CompilerInterface`) - #157119 (ast_lowering: Simplify `resolve_pin_drop_sugar_impl_item`) - #157120 (Cleanups around attribute target checking) Failed merges: - #157100 (Some more per owner things)

JonathanBrouwer · 2026-05-29T19:05:43Z

@bors try cancel

rust-bors · 2026-05-29T19:05:46Z

Try build cancelled. Cancelled workflows:

https://github.com/rust-lang/rust/actions/runs/26656636426

rust-log-analyzer · 2026-05-29T19:43:40Z

The job x86_64-gnu-llvm-21 failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

Caused by:
  unable to update registry `crates-io`

Caused by:
  download of it/er/itertools failed

Caused by:
  curl failed

Caused by:

rust-bors · 2026-05-29T20:35:33Z

💔 Test for efcaddb failed: CI. Failed job:

auto - aarch64-gnu-llvm-21-2 (web logs, enhanced plaintext logs)

JonathanBrouwer · 2026-05-29T20:38:31Z

I love github
@bors retry

…uwer Rollup of 16 pull requests Successful merges: - #149195 (resolve: Partially convert `ambiguous_glob_imports` lint into a hard error) - #156960 (Some cleanups around passing extra lifetime params from the resolver to ast lowering) - #156963 (definitions: remove `DefPathTable`, use `LocalDefId` instead of `DefIndex`) - #157053 (Eagerly resolve delegations in late resolution) - #157068 (NVPTX: Remove the unstable ptx linker flavor) - #157076 (Various proc-macro related code cleanups) - #157106 (add ABI check logic for wasm) - #154835 (std::offload sharedmem) - #157065 (Stabilize `Path::is_empty`) - #157088 (Improve suggestions for malformed deprecated attribute) - #157098 (Add the `clflushopt` x86 target feature) - #157103 (Add reproducibly failing tests for parallel frontend) - #157111 (Update target maintainer for x86_64-unknown-linux-none) - #157116 (rustc_public: add `with_cx()` to `CompilerInterface`) - #157119 (ast_lowering: Simplify `resolve_pin_drop_sugar_impl_item`) - #157120 (Cleanups around attribute target checking) Failed merges: - #157100 (Some more per owner things)

rust-bors · 2026-05-29T20:40:27Z

💔 Test for 30484b3 failed: CI. Failed job:

auto - test-various (web logs, enhanced plaintext logs)

JonathanBrouwer · 2026-05-29T20:43:09Z

@bors retry

rust-bors · 2026-05-29T20:43:21Z

⌛ Testing commit 82471b6 with merge d3199a7...

Workflow: https://github.com/rust-lang/rust/actions/runs/26661193147

…uwer Rollup of 16 pull requests Successful merges: - #149195 (resolve: Partially convert `ambiguous_glob_imports` lint into a hard error) - #156960 (Some cleanups around passing extra lifetime params from the resolver to ast lowering) - #156963 (definitions: remove `DefPathTable`, use `LocalDefId` instead of `DefIndex`) - #157053 (Eagerly resolve delegations in late resolution) - #157068 (NVPTX: Remove the unstable ptx linker flavor) - #157076 (Various proc-macro related code cleanups) - #157106 (add ABI check logic for wasm) - #154835 (std::offload sharedmem) - #157065 (Stabilize `Path::is_empty`) - #157088 (Improve suggestions for malformed deprecated attribute) - #157098 (Add the `clflushopt` x86 target feature) - #157103 (Add reproducibly failing tests for parallel frontend) - #157111 (Update target maintainer for x86_64-unknown-linux-none) - #157116 (rustc_public: add `with_cx()` to `CompilerInterface`) - #157119 (ast_lowering: Simplify `resolve_pin_drop_sugar_impl_item`) - #157120 (Cleanups around attribute target checking) Failed merges: - #157100 (Some more per owner things)

oli-obk and others added 30 commits May 26, 2026 09:54

Merge two functions always called after each other

685984a

Remove an unnecessary generic

ed8e3ba

Add a dedicated method for error lifetime recording

31a054c

Rename and document some methods

d8cddda

Drop an unused distinction (in diagnostics code) between anonymous an…

bf5045c

…d named lifetimes

Remove some dead code

c0819ff

Remove an unused field

87f9c4f

extra_lifetime_params_map can only ever contain LifetimeRes::Fresh,…

19a5af7

… so just encode the fields we need

Stabilize Path::is_empty

c8aba3e

Remove a hack introduced back when unwinding through extern "C" was UB

420566f

Implement Encode and Decode for proc_macro::TokenStream wrapper type

32615f2

Remove outdated comment

53b4acd

Remove unused proc_macro table from crate metadata

5c56e61

Use platform independent encoding for integers in proc-macro RPC

bde798a

This makes the proc-macro RPC protocol platform independent as necessary for running proc macros and rustc on different architectures.

Give variables passed to Omp/Offload nice names on LLVM-IR level

fade967

Enable requesting shared-memory at kernel launch-time via offload

c01bfdc

Suggest using NameValue syntax for malformed deprecated attribute

a1d4ad1

Suggest using since field when malformed deprecated attribute value i…

9bfbf34

…s version shaped

Eagerly resolve delegations in late resolution

942ac85

Update reproducibly failing tests when parallel frontend is enabled

f582193

NVPTX: Remove the deprecated ptx linker flavor

ec46eac

Add feature-gate test for clflushopt_target_feature

0980491

add ABI check logic for wasm

2c0f9de

Remove DefPathTable, use LocalDefId instead of DefIndex where pos…

7767295

…sible

Update target maintainer for x86_64-unknown-linux-none

7d9aab6

resolve: Partially convert ambiguous_glob_imports lint into a hard …

15b1398

…error

rustc_public: add with_cx() to CompilerInterface

f6cbfd9

rust-bors Bot 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 May 29, 2026

rust-bors Bot mentioned this pull request May 29, 2026

[beta] bump stage0, plus a backport #157086

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