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[AIX] create shim for lgammaf_r #133543

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Nov 28, 2024
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@mustartt mustartt commented Nov 27, 2024

On AIX, we don't have 32bit floating point for re-entrant lgammaf_r but we do have the 64bit floating point re-entrant lgamma_r so we can use the 64bit version instead and truncate back to a 32bit float.

This solves the linker missing symbol for .lgammaf_r when testing and using these parts of the std.

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rustbot commented Nov 27, 2024

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @cuviper (or someone else) some time within the next two weeks.

Please see the contribution instructions for more information. Namely, in order to ensure the minimum review times lag, PR authors and assigned reviewers should ensure that the review label (S-waiting-on-review and S-waiting-on-author) stays updated, invoking these commands when appropriate:

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Nov 27, 2024
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cuviper commented Nov 27, 2024

Sounds good, and there's precedent for this kind of shim in MSVC. Thanks!

@bors r+ rollup

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bors commented Nov 27, 2024

📌 Commit 527b606 has been approved by cuviper

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 Nov 27, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 28, 2024
…llaumeGomez

Rollup of 12 pull requests

Successful merges:

 - rust-lang#129409 (Expand std::os::unix::fs::chown() doc with a warning)
 - rust-lang#133320 (Add release notes for Rust 1.83.0)
 - rust-lang#133368 (Delay a bug when encountering an impl with unconstrained generics in `codegen_select`)
 - rust-lang#133428 (Actually use placeholder regions for trait method late bound regions in `collect_return_position_impl_trait_in_trait_tys`)
 - rust-lang#133512 (Add `as_array` and `as_mut_array` conversion methods to slices.)
 - rust-lang#133519 (Check `xform_ret_ty` for WF in the new solver to improve method winnowing)
 - rust-lang#133520 (Structurally resolve before applying projection in borrowck)
 - rust-lang#133534 (extend group-forbid-always-trumps-cli test)
 - rust-lang#133537 ([rustdoc] Fix new clippy lints)
 - rust-lang#133543 ([AIX] create shim for lgammaf_r)
 - rust-lang#133547 (rustc_span: Replace a `HashMap<_, ()>` with `HashSet`)
 - rust-lang#133550 (print generated doc paths)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 82d4eae into rust-lang:master Nov 28, 2024
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@rustbot rustbot added this to the 1.85.0 milestone Nov 28, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Nov 28, 2024
Rollup merge of rust-lang#133543 - mustartt:aix-lgammaf_r-shim, r=cuviper

[AIX] create shim for lgammaf_r

On AIX, we don't have 32bit floating point for re-entrant `lgammaf_r` but we do have the 64bit floating point re-entrant `lgamma_r` so we can use the 64bit version instead and truncate back to a 32bit float.

This solves the linker missing symbol for `.lgammaf_r` when testing and using these parts of the `std`.
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4 participants