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Nvptx remove direct passmode #125980
Nvptx remove direct passmode #125980
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…ince it was used as an example when discussing possible problems
rustbot has assigned @petrochenkov. Use |
Seems like rustbot was not happy with @RalfJung as reviewer. I will request @davidtwco due to knowing this topic from #117671 r? @davidtwco |
@rustbot label O-NVPTX |
Not sure why it ignored the |
@bors r rollup |
…kingjubilee Rollup of 16 pull requests Successful merges: - rust-lang#123374 (DOC: Add FFI example for slice::from_raw_parts()) - rust-lang#124514 (Recommend to never display zero disambiguators when demangling v0 symbols) - rust-lang#125978 (Cleanup: HIR ty lowering: Consolidate the places that do assoc item probing & access checking) - rust-lang#125980 (Nvptx remove direct passmode) - rust-lang#126187 (For E0277 suggest adding `Result` return type for function when using QuestionMark `?` in the body.) - rust-lang#126210 (docs(core): make more const_ptr doctests assert instead of printing) - rust-lang#126249 (Simplify `[T; N]::try_map` signature) - rust-lang#126256 (Add {{target}} substitution to compiletest) - rust-lang#126263 (Make issue-122805.rs big endian compatible) - rust-lang#126281 (set_env: State the conclusion upfront) - rust-lang#126286 (Make `storage-live.rs` robust against rustc internal changes.) - rust-lang#126287 (Update a cranelift patch file for formatting changes.) - rust-lang#126301 (Use `tidy` to sort crate attributes for all compiler crates.) - rust-lang#126305 (Make PathBuf less Ok with adding UTF-16 then `into_string`) - rust-lang#126310 (Migrate run make prefer rlib) - rust-lang#126314 (fix RELEASES: we do not support upcasting to auto traits) r? `@ghost` `@rustbot` modify labels: rollup
Rollup merge of rust-lang#125980 - kjetilkjeka:nvptx_remove_direct_passmode, r=davidtwco Nvptx remove direct passmode This PR does what should have been done in rust-lang#117671. That is fully avoid using the `PassMode::Direct` for `extern "C" fn` for `nvptx64-nvidia-cuda` and enable the compatibility test. `@RalfJung` [pointed me in the right direction](rust-lang#117480 (comment)) for solving this issue. There are still some ABI bugs after this PR is merged. These ABI tests are created based on what is actually correct, and since they continue passing with even more of them enabled things are improving. I don't have the time to tackle all the remaining issues right now, but I think getting these improvements merged is very valuable in themselves and plan to tackle more of them long term. This also doesn't remove the use of `PassMode::Direct` for `extern "ptx-kernel" fn`. This was also not trivial to make work. And since the ABI is hidden behind an unstable feature it's less urgent. I don't know if it's correct to request `@RalfJung` as a reviewer (due to team structures), but he helped me a lot to figure out this stuff. If that's not appropriate then `@davidtwco` would be a good candidate since he know about this topic from rust-lang#117671 r? `@RalfJung`
…kingjubilee Rollup of 16 pull requests Successful merges: - rust-lang#123374 (DOC: Add FFI example for slice::from_raw_parts()) - rust-lang#124514 (Recommend to never display zero disambiguators when demangling v0 symbols) - rust-lang#125978 (Cleanup: HIR ty lowering: Consolidate the places that do assoc item probing & access checking) - rust-lang#125980 (Nvptx remove direct passmode) - rust-lang#126187 (For E0277 suggest adding `Result` return type for function when using QuestionMark `?` in the body.) - rust-lang#126210 (docs(core): make more const_ptr doctests assert instead of printing) - rust-lang#126249 (Simplify `[T; N]::try_map` signature) - rust-lang#126256 (Add {{target}} substitution to compiletest) - rust-lang#126263 (Make issue-122805.rs big endian compatible) - rust-lang#126281 (set_env: State the conclusion upfront) - rust-lang#126286 (Make `storage-live.rs` robust against rustc internal changes.) - rust-lang#126287 (Update a cranelift patch file for formatting changes.) - rust-lang#126301 (Use `tidy` to sort crate attributes for all compiler crates.) - rust-lang#126305 (Make PathBuf less Ok with adding UTF-16 then `into_string`) - rust-lang#126310 (Migrate run make prefer rlib) - rust-lang#126314 (fix RELEASES: we do not support upcasting to auto traits) r? `@ghost` `@rustbot` modify labels: rollup
This PR does what should have been done in #117671. That is fully avoid using the
PassMode::Direct
forextern "C" fn
fornvptx64-nvidia-cuda
and enable the compatibility test. @RalfJung pointed me in the right direction for solving this issue.There are still some ABI bugs after this PR is merged. These ABI tests are created based on what is actually correct, and since they continue passing with even more of them enabled things are improving. I don't have the time to tackle all the remaining issues right now, but I think getting these improvements merged is very valuable in themselves and plan to tackle more of them long term.
This also doesn't remove the use of
PassMode::Direct
forextern "ptx-kernel" fn
. This was also not trivial to make work. And since the ABI is hidden behind an unstable feature it's less urgent.I don't know if it's correct to request @RalfJung as a reviewer (due to team structures), but he helped me a lot to figure out this stuff. If that's not appropriate then @davidtwco would be a good candidate since he know about this topic from #117671
r? @RalfJung