Remove extern "wasm" ABI #127605
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Remove extern "wasm" ABI #127605
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Remove the unstable `extern "wasm"` ABI (`wasm_abi` feature tracked in rust-lang#83788). As discussed in rust-lang#127513 (comment) and following, this ABI is a failed experiment that did not end up being used for anything. Keeping support for this ABI in LLVM 19 would require us to switch wasm targets to the `experimental-mv` ABI, which we do not want to do. It should be noted that `Abi::Wasm` was internally used for two things: The `-Z wasm-c-abi=legacy` ABI that is still used by default on some wasm targets, and the `extern "wasm"` ABI. Despite both being `Abi::Wasm` internally, they were not the same. An explicit `extern "wasm"` additionally enabled the `+multivalue` feature. I've opted to remove `Abi::Wasm` in this patch entirely, instead of keeping it as an ABI with only internal usage. Both `-Z wasm-c-abi` variants are now treated as part of the normal C ABI, just with different different treatment in adjust_for_foreign_abi.
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#124599 (Suggest borrowing on fn argument that is `impl AsRef`) - rust-lang#127572 (Don't mark `DEBUG_EVENT` struct as `repr(packed)`) - rust-lang#127588 (core: Limit remaining f16 doctests to x86_64 linux) - rust-lang#127591 (Make sure that labels are defined after the primary span in diagnostics) - rust-lang#127598 (Allows `#[diagnostic::do_not_recommend]` to supress trait impls in suggestions as well) - rust-lang#127599 (Rename `lazy_cell_consume` to `lazy_cell_into_inner`) - rust-lang#127601 (check is_ident before parse_ident) - rust-lang#127605 (Remove extern "wasm" ABI) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#124599 (Suggest borrowing on fn argument that is `impl AsRef`) - rust-lang#127572 (Don't mark `DEBUG_EVENT` struct as `repr(packed)`) - rust-lang#127588 (core: Limit remaining f16 doctests to x86_64 linux) - rust-lang#127591 (Make sure that labels are defined after the primary span in diagnostics) - rust-lang#127598 (Allows `#[diagnostic::do_not_recommend]` to supress trait impls in suggestions as well) - rust-lang#127599 (Rename `lazy_cell_consume` to `lazy_cell_into_inner`) - rust-lang#127601 (check is_ident before parse_ident) - rust-lang#127605 (Remove extern "wasm" ABI) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#127605 - nikic:remove-extern-wasm, r=oli-obk Remove extern "wasm" ABI Remove the unstable `extern "wasm"` ABI (`wasm_abi` feature tracked in rust-lang#83788). As discussed in rust-lang#127513 (comment) and following, this ABI is a failed experiment that did not end up being used for anything. Keeping support for this ABI in LLVM 19 would require us to switch wasm targets to the `experimental-mv` ABI, which we do not want to do. It should be noted that `Abi::Wasm` was internally used for two things: The `-Z wasm-c-abi=legacy` ABI that is still used by default on some wasm targets, and the `extern "wasm"` ABI. Despite both being `Abi::Wasm` internally, they were not the same. An explicit `extern "wasm"` additionally enabled the `+multivalue` feature. I've opted to remove `Abi::Wasm` in this patch entirely, instead of keeping it as an ABI with only internal usage. Both `-Z wasm-c-abi` variants are now treated as part of the normal C ABI, just with different different treatment in adjust_for_foreign_abi.
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Update to LLVM 19 Related changes: * rust-lang#127605 * rust-lang#127613 * rust-lang#127654 * rust-lang#128141 * llvm/llvm-project#98933 try-job: dist-x86_64-apple try-job: dist-apple-various try-job: x86_64-apple-1 try-job: x86_64-apple-2 try-job: dist-aarch64-apple try-job: aarch64-apple
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Update to LLVM 19 Related changes: * rust-lang#127605 * rust-lang#127613 * rust-lang#127654 * rust-lang#128141 * llvm/llvm-project#98933 try-job: x86_64-msvc try-job: i686-msvc try-job: x86_64-msvc-ext try-job: dist-x86_64-msvc try-job: dist-i686-msvc try-job: dist-aarch64-msvc try-job: dist-x86_64-msvc-alt
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Update to LLVM 19 Related changes: * rust-lang#127605 * rust-lang#127613 * rust-lang#127654 * rust-lang#128141 * llvm/llvm-project#98933 try-job: i686-mingw try-job: x86_64-mingw try-job: dist-i686-mingw try-job: dist-x86_64-mingw
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Update Rust toolchain from nightly-2024-07-12 to nightly-2024-07-13 without any other source changes. This is an automatically generated pull request. If any of the CI checks fail, manual intervention is required. In such a case, review the changes at https://github.com/rust-lang/rust from rust-lang@5315cbe up to rust-lang@c6727fc. The log for this commit range is: rust-lang@c6727fc9b5 Auto merge of rust-lang#123351 - beetrees:x86-ret-snan-rust, r=nikic,workingjubilee rust-lang@62c068feea Auto merge of rust-lang#127636 - nnethercote:fix-Parser-look_ahead, r=oli-obk rust-lang@5d76a13bbe Auto merge of rust-lang#127653 - matthiaskrgr:rollup-72bqgvp, r=matthiaskrgr rust-lang@f11c2c8e95 Rollup merge of rust-lang#127648 - Kobzol:ci-lower-timeout, r=pietroalbini rust-lang@526da2366a Rollup merge of rust-lang#127627 - lcnr:rustc_search_graph, r=compiler-errors rust-lang@f5fa6fb602 Rollup merge of rust-lang#127613 - nikic:riscv-update, r=cuviper rust-lang@b4f002d2e5 Rollup merge of rust-lang#127552 - onur-ozkan:unnecessary-git-usage, r=Kobzol rust-lang@8ceb4e49ff Rollup merge of rust-lang#127433 - dtolnay:conststrlen, r=workingjubilee rust-lang@f9b3e8b387 Rollup merge of rust-lang#126827 - the8472:pidfd-spawn, r=workingjubilee rust-lang@18152d72a4 Rollup merge of rust-lang#126639 - sayantn:amx, r=Amanieu rust-lang@65ea92d4a1 Rollup merge of rust-lang#124980 - zachs18:rc-allocator, r=Amanieu rust-lang@05eac57ef6 Auto merge of rust-lang#127479 - Urgau:rustc-stable-hash, r=michaelwoerister rust-lang@15f770b143 enable fuzzing of `SearchGraph` rust-lang@cae9d480bf Adjust tests for x86 "Rust" ABI changes rust-lang@3f4b9dd463 Lower timeout of CI jobs to 4 hours rust-lang@7f1518bddd Add instability attribute on private const_strlen function rust-lang@b286722878 Auto merge of rust-lang#127635 - matthiaskrgr:rollup-foopajr, r=matthiaskrgr rust-lang@100f3fd133 Add a new special case to `Parser::look_ahead`. rust-lang@ebe1305b1e Remove the bogus special case from `Parser::look_ahead`. rust-lang@dad95578b0 Add unit tests for `Parser::look_ahead`. rust-lang@ec05c4ea3f Add the feature gate and target-features rust-lang@c2b7842555 Rollup merge of rust-lang#127625 - SkiFire13:revert-comment-deletion, r=workingjubilee rust-lang@ca576eae4e Rollup merge of rust-lang#127622 - compiler-errors:builtin-internal, r=lqd rust-lang@fe564c10ab Rollup merge of rust-lang#127607 - Zalathar:normalize-hint, r=wesleywiser rust-lang@83d1a1b252 Rollup merge of rust-lang#127596 - tesuji:help-unwrap-or, r=compiler-errors rust-lang@1e7ad4c3ed Rollup merge of rust-lang#127422 - greaka:master, r=workingjubilee rust-lang@58fe37f2c3 Rollup merge of rust-lang#127164 - Nadrieril:clean-lowering-loop, r=matthewjasper rust-lang@4a31a6c32a Auto merge of rust-lang#127382 - estebank:const-let, r=compiler-errors rust-lang@5e311f933d Auto merge of rust-lang#127614 - matthiaskrgr:rollup-8geziwi, r=matthiaskrgr rust-lang@a776e5f922 Add doc for deconstruct_option_or_result rust-lang@872d7b82e1 Add suggestion for `Option<&Vec<T>> -> Option<&[T]` rust-lang@d9170dc666 Add regression test for issue 127545 rust-lang@4df75140dd Fix aarch64 test rust-lang@cbe75486f7 Account for `let foo = expr`; to suggest `const foo: Ty = expr;` rust-lang@b56dc8ee90 Use verbose style when suggesting changing `const` with `let` rust-lang@d9021791eb Revert accidental comment deletion rust-lang@b77d3ef7c4 Mark builtin syntax as internal rust-lang@fa3ce50f0b Rollup merge of rust-lang#127605 - nikic:remove-extern-wasm, r=oli-obk rust-lang@d433f176ef Rollup merge of rust-lang#127601 - trevyn:issue-127600, r=compiler-errors rust-lang@47ab86653e Rollup merge of rust-lang#127599 - tgross35:lazy_cell_consume-rename, r=workingjubilee rust-lang@a10b4d1463 Rollup merge of rust-lang#127598 - weiznich:diagnostic_do_not_recommend_also_skips_help, r=compiler-errors rust-lang@73c500b3a7 Rollup merge of rust-lang#127591 - compiler-errors:label-after-primary, r=lcnr rust-lang@380c78741e Rollup merge of rust-lang#127588 - uweigand:s390x-f16-doctests, r=tgross35 rust-lang@6fd955549a Rollup merge of rust-lang#127572 - tbu-:pr_debug_event_nonpacked, r=jhpratt rust-lang@8de487fdbd Rollup merge of rust-lang#124599 - estebank:issue-41708, r=wesleywiser rust-lang@55256c5a18 Update dist-riscv64-linux to binutils 2.40 rust-lang@977439d9b8 Use uplifted `rustc-stable-hash` crate in `rustc_data_structures` rust-lang@f56b2074c6 solve -> solve/mod rust-lang@08a2992d6b compiletest: Better error message for bad `normalize-*` headers rust-lang@8a50bcbdce Remove extern "wasm" ABI rust-lang@a01f49e7f3 check is_ident before parse_ident rust-lang@ab56fe2053 Rename `lazy_cell_consume` to `lazy_cell_into_inner` rust-lang@27d5db166e Allows `#[diagnostic::do_not_recommend]` to supress trait impls in suggestions as well rust-lang@12ae282987 Fix diagnostic and add a test for it rust-lang@df72e478b0 Make sure that labels are defined after the primary span in diagnostics rust-lang@0065763950 core: Limit remaining f16 doctests to x86_64 linux rust-lang@45ad522e87 Don't mark `DEBUG_EVENT` struct as `repr(packed)` rust-lang@0134bd2e67 remove unnecessary `git` usages rust-lang@42772e98e0 Address review comments rust-lang@3e030b38ef Return the `otherwise_block` instead of passing it as argument rust-lang@fc40247c6b Factor out the "process remaining candidates" cases rust-lang@8a222ffd6b Don't try to save an extra block rust-lang@c5062f7318 Move or-pattern expansion inside the main part of the algorithm rust-lang@bff4d213fa Factor out the special handling of or-patterns rust-lang@5bf50e66f9 Move a function rust-lang@53d3e6217b Stabilize const_cstr_from_ptr (CStr::from_ptr, CStr::count_bytes) rust-lang@585ca16e0b as_simd: fix comment to be in line with 507583a (rust-lang#121201) rust-lang@0f643c449a Ensure tests don't fail on i586 in CI rust-lang@ec0c755704 Check that we get somewhat sane PIDs when spawning with pidfds rust-lang@3e4e31b7bf more fine-grained feature-detection for pidfd spawning rust-lang@0ce361938e document safety properties of the internal Process::new constructor rust-lang@6687a3f7da use pidfd_spawn for faster process creation when pidfds are requested rust-lang@5c46acac04 document the cvt methods rust-lang@0e1c832dbd Update `platform-support.md` to reflect improvements in returning floats on 32-bit x86 rust-lang@952becc0bd Ensure floats are returned losslessly by the Rust ABI on 32-bit x86 rust-lang@a1ad6346d6 Add fn allocator method to rc/sync::Weak. Relax Rc<T>/Arc<T>::allocator to allow unsized T. rust-lang@2df4f7dd8c Suggest borrowing on fn argument that is `impl AsRef` Co-authored-by: celinval <[email protected]>
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Update to LLVM 19 The LLVM 19.1.0 final release is planned for Sep 3rd. The rustc 1.82 stable release will be on Oct 17th. The unstable MC/DC coverage support is temporarily broken by this update. It will be restored by rust-lang#126733. The implementation changed substantially in LLVM 19, and there are no plans to support both the LLVM 18 and LLVM 19 implementation at the same time. Compatibility note for wasm: > WebAssembly target support for the `multivalue` target feature has changed when upgrading to LLVM 19. Support for generating functions with multiple returns no longer works and `-Ctarget-feature=+multivalue` has a different meaning than it did in LLVM 18 and prior. The WebAssembly target features `multivalue` and `reference-types` are now both enabled by default, but generated code is not affected by default. These features being enabled are encoded in the `target_features` custom section and may affect downstream tooling such as `wasm-opt` consuming the module, but the actual generated WebAssembly will continue to not use either `multivalue` or `reference-types` by default. There is no longer any supported means to generate a module that has a function with multiple returns. Related changes: * rust-lang#127605 * rust-lang#127613 * rust-lang#127654 * rust-lang#128141 * llvm/llvm-project#98933 Fixes rust-lang#121444. Fixes rust-lang#128212.
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Update to LLVM 19 The LLVM 19.1.0 final release is planned for Sep 3rd. The rustc 1.82 stable release will be on Oct 17th. The unstable MC/DC coverage support is temporarily broken by this update. It will be restored by rust-lang#126733. The implementation changed substantially in LLVM 19, and there are no plans to support both the LLVM 18 and LLVM 19 implementation at the same time. Compatibility note for wasm: > WebAssembly target support for the `multivalue` target feature has changed when upgrading to LLVM 19. Support for generating functions with multiple returns no longer works and `-Ctarget-feature=+multivalue` has a different meaning than it did in LLVM 18 and prior. The WebAssembly target features `multivalue` and `reference-types` are now both enabled by default, but generated code is not affected by default. These features being enabled are encoded in the `target_features` custom section and may affect downstream tooling such as `wasm-opt` consuming the module, but the actual generated WebAssembly will continue to not use either `multivalue` or `reference-types` by default. There is no longer any supported means to generate a module that has a function with multiple returns. Related changes: * rust-lang#127605 * rust-lang#127613 * rust-lang#127654 * rust-lang#128141 * llvm/llvm-project#98933 Fixes rust-lang#121444. Fixes rust-lang#128212.
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Update to LLVM 19 The LLVM 19.1.0 final release is planned for Sep 3rd. The rustc 1.82 stable release will be on Oct 17th. The unstable MC/DC coverage support is temporarily broken by this update. It will be restored by rust-lang#126733. The implementation changed substantially in LLVM 19, and there are no plans to support both the LLVM 18 and LLVM 19 implementation at the same time. Compatibility note for wasm: > WebAssembly target support for the `multivalue` target feature has changed when upgrading to LLVM 19. Support for generating functions with multiple returns no longer works and `-Ctarget-feature=+multivalue` has a different meaning than it did in LLVM 18 and prior. The WebAssembly target features `multivalue` and `reference-types` are now both enabled by default, but generated code is not affected by default. These features being enabled are encoded in the `target_features` custom section and may affect downstream tooling such as `wasm-opt` consuming the module, but the actual generated WebAssembly will continue to not use either `multivalue` or `reference-types` by default. There is no longer any supported means to generate a module that has a function with multiple returns. Related changes: * rust-lang#127605 * rust-lang#127613 * rust-lang#127654 * rust-lang#128141 * llvm/llvm-project#98933 Fixes rust-lang#121444. Fixes rust-lang#128212.
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Update to LLVM 19 The LLVM 19.1.0 final release is planned for Sep 3rd. The rustc 1.82 stable release will be on Oct 17th. The unstable MC/DC coverage support is temporarily broken by this update. It will be restored by rust-lang/rust#126733. The implementation changed substantially in LLVM 19, and there are no plans to support both the LLVM 18 and LLVM 19 implementation at the same time. Compatibility note for wasm: > WebAssembly target support for the `multivalue` target feature has changed when upgrading to LLVM 19. Support for generating functions with multiple returns no longer works and `-Ctarget-feature=+multivalue` has a different meaning than it did in LLVM 18 and prior. The WebAssembly target features `multivalue` and `reference-types` are now both enabled by default, but generated code is not affected by default. These features being enabled are encoded in the `target_features` custom section and may affect downstream tooling such as `wasm-opt` consuming the module, but the actual generated WebAssembly will continue to not use either `multivalue` or `reference-types` by default. There is no longer any supported means to generate a module that has a function with multiple returns. Related changes: * rust-lang/rust#127605 * rust-lang/rust#127613 * rust-lang/rust#127654 * rust-lang/rust#128141 * llvm/llvm-project#98933 Fixes rust-lang/rust#121444. Fixes rust-lang/rust#128212.
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Update to LLVM 19 The LLVM 19.1.0 final release is planned for Sep 3rd. The rustc 1.82 stable release will be on Oct 17th. The unstable MC/DC coverage support is temporarily broken by this update. It will be restored by rust-lang/rust#126733. The implementation changed substantially in LLVM 19, and there are no plans to support both the LLVM 18 and LLVM 19 implementation at the same time. Compatibility note for wasm: > WebAssembly target support for the `multivalue` target feature has changed when upgrading to LLVM 19. Support for generating functions with multiple returns no longer works and `-Ctarget-feature=+multivalue` has a different meaning than it did in LLVM 18 and prior. The WebAssembly target features `multivalue` and `reference-types` are now both enabled by default, but generated code is not affected by default. These features being enabled are encoded in the `target_features` custom section and may affect downstream tooling such as `wasm-opt` consuming the module, but the actual generated WebAssembly will continue to not use either `multivalue` or `reference-types` by default. There is no longer any supported means to generate a module that has a function with multiple returns. Related changes: * rust-lang/rust#127605 * rust-lang/rust#127613 * rust-lang/rust#127654 * rust-lang/rust#128141 * llvm/llvm-project#98933 Fixes rust-lang/rust#121444. Fixes rust-lang/rust#128212.
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Remove the unstable
extern "wasm"ABI (wasm_abifeature tracked in #83788).As discussed in #127513 (comment) and following, this ABI is a failed experiment that did not end up being used for anything. Keeping support for this ABI in LLVM 19 would require us to switch wasm targets to the
experimental-mvABI, which we do not want to do.It should be noted that
Abi::Wasmwas internally used for two things: The-Z wasm-c-abi=legacyABI that is still used by default on some wasm targets, and theextern "wasm"ABI. Despite both beingAbi::Wasminternally, they were not the same. An explicitextern "wasm"additionally enabled the+multivaluefeature.I've opted to remove
Abi::Wasmin this patch entirely, instead of keeping it as an ABI with only internal usage. Both-Z wasm-c-abivariants are now treated as part of the normal C ABI, just with different different treatment inadjust_for_foreign_abi.