Support 128-bit atomics on s390x #130558
Merged
Support 128-bit atomics on s390x #130558
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rustbot
added
S-waiting-on-review
|
These commits modify compiler targets. |
|
I have tested LLVM's s390x 128-bit atomic implementation with LLVM 19 (rustc nightly-2024-09-19) and 18 (rustc nightly-2024-07-31) using the portable-atomic's test suite (that has caught some of the issues mentioned in #99069 (comment) in the past), an |
2 tasks
|
Thanks! I also ran the portable-atomic tests and core tests with this change on real hardware (z16), and it passed. @bors r+ rollup |
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Sep 19, 2024
…iaskrgr Rollup of 5 pull requests Successful merges: - rust-lang#128001 (Improve documentation for <integer>::from_str_radix) - rust-lang#130553 ([Clippy] Get rid of most `std` `match_def_path` usage, swap to diagnostic items.) - rust-lang#130554 (`pal::unsupported::process::ExitCode`: use an `u8` instead of a `bool`) - rust-lang#130556 (Mark the `link_cfg` feature as internal) - rust-lang#130558 (Support 128-bit atomics on s390x) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Sep 19, 2024
Rollup merge of rust-lang#130558 - taiki-e:s390x-atomic-128, r=cuviper Support 128-bit atomics on s390x Since LLVM 18 (llvm/llvm-project@c568927), 128-bit atomics are fully supported on s390x. And the current minimum external LLVM version is now 18 (rust-lang#130487). s390x 128-bit atomic instructions (lpq,stpq,cdsg) has been present since [the First Edition of the Principles of Operation](https://publibfp.dhe.ibm.com/epubs/pdf/dz9zr000.pdf). (LLVM's minimal supported architecture level [is z10 (the Eighth Edition of the PoP)](https://github.com/llvm/llvm-project/blob/llvmorg-19.1.0/llvm/lib/Target/SystemZ/SystemZProcessors.td#L16-L17).) cc rust-lang#99069 r? `@cuviper`
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Since LLVM 18 (llvm/llvm-project@c568927), 128-bit atomics are fully supported on s390x. And the current minimum external LLVM version is now 18 (#130487).
s390x 128-bit atomic instructions (lpq,stpq,cdsg) has been present since the First Edition of the Principles of Operation. (LLVM's minimal supported architecture level is z10 (the Eighth Edition of the PoP).)
cc #99069
r? @cuviper
@rustbot label +O-SystemZ