Rollup of 4 pull requests #113821
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Rollup of 4 pull requests #113821
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…plied at the crate level. When `no_builtins` is applied at the crate level, we should add the `no-builtins` attribute to each function to ensure it takes effect in LTO.
…, r=pnkfelix Add the `no-builtins` attribute to functions when `no_builtins` is applied at the crate level. **When `no_builtins` is applied at the crate level, we should add the `no-builtins` attribute to each function to ensure it takes effect in LTO.** This is also the reason why no_builtins does not take effect in LTO as mentioned in rust-lang#35540. Now, `#![no_builtins]` should be similar to `-fno-builtin` in clang/gcc, see https://clang.godbolt.org/z/z4j6Wsod5. Next, we should make `#![no_builtins]` participate in LTO again. That makes sense, as LTO also takes into consideration function-level instruction optimizations, such as the MachineOutliner. More importantly, when a user writes a large `#![no_builtins]` crate, they would like this crate to participate in LTO as well. We should also add a function-level no_builtins attribute to allow users to have more control over it. This is similar to Clang's `__attribute__((no_builtin))` feature, see https://clang.godbolt.org/z/Wod6KK6eq. Before implementing this feature, maybe we should discuss whether to support more fine-grained control, such as `__attribute__((no_builtin("memcpy")))`. Related discussions: - rust-lang#109821 - rust-lang#35540 Next (a separate pull request?): - [ ] Revert rust-lang#35637 - [ ] Add a function-level `no_builtin` attribute?
…-105735-fix, r=notriddle,aDotInTheVoid Fix invalid display of inlined re-export when both local and foreign items are inlined Fixes rust-lang#105735. The bug is actually quite interesting: at the `clean` pass, local inlined items have their `use` item removed, however foreign items don't have their `use` item removed because it's in the `clean` pass that we handle them. So when a `use` inlines both a local and a foreign item, it will work as expected for the foreign one, but not for the local as its `use` should not be around anymore. To prevent this, I created a new `inlined_foreigns` field into the `Module` struct to allow to remove the `use` item early on for foreign items as well. Then we iterate it in the `clean` pass directly. r? `@notriddle`
Properly document `lifetime_mapping` in `OpaqueTy` Also use an `Option` to signify that the value is actually present, instead of just no captured lifetimes.
…-suggestion, r=oli-obk Fix removal span calculation of `unused_qualifications` suggestion Given a path such as `std::ops::Index<str>`, calculate the unnecessary qualification removal span by computing the beginning of the entire span until the ident span of the last path segment, which handles generic arguments and lifetime arguments in the last path segment. Previous logic only kept the ident span of the last path segment which is incorrect. Closes rust-lang#113808.
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@bors r+ p=4 rollup=never |
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⌛ Testing commit a215ee4 with merge 824b47922254fa197735929fa13f48bb2a623e64... |
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💔 Test failed - checks-actions |
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Successful merges:
no-builtinsattribute to functions whenno_builtinsis applied at the crate level. #113716 (Add theno-builtinsattribute to functions whenno_builtinsis applied at the crate level.)lifetime_mappinginOpaqueTy#113795 (Properly documentlifetime_mappinginOpaqueTy)unused_qualificationssuggestion #113811 (Fix removal span calculation ofunused_qualificationssuggestion)r? @ghost
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