https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=stable 2025-07-31T05:42:00+00:00 2025-07-31T05:42:00+00:00 Stuart Cook Zalathar@users.noreply.github.com 2025-07-31T05:42:00+00:00 urn:sha1:8628b78f24c01026d01b82afd3ec91a2019fe647 Implement support for `become` and explicit tail call codegen for the LLVM backend This PR implements codegen of explicit tail calls via `become` in `rustc_codegen_ssa` and support within the LLVM backend. Completes a task on (https://github.com/rust-lang/rust/issues/112788). This PR implements all the necessary bits to make explicit tail calls usable, other backends have received stubs for now and will ICE if you use `become` on them. I suspect there is some bikeshedding to be done on how we should go about implementing this for other backends, but it should be relatively straightforward for GCC after this is merged. During development I also put together a POC bytecode VM based on tail call dispatch to test these changes out and analyze the codegen to make sure it generates expected assembly. That is available [here](https://github.com/xacrimon/tcvm). 2025-07-26T13:52:24+00:00 bjorn3 17426603+bjorn3@users.noreply.github.com 2025-07-06T18:03:07+00:00 urn:sha1:948f7798d70b6adb6a490b8867e155dadebd3f0e Nobody seems to actually use this, while still adding some extra complexity to the already rather complex codegen coordinator code. It is also not supported by any backend other than the LLVM backend. 2025-07-25T23:02:29+00:00 Joel Wejdenstål joel.wejdenstal@gmail.com 2025-07-25T19:21:42+00:00 urn:sha1:a448837045326d7c33059dc3aa2d1d87529dcf3d 2025-07-21T07:58:44+00:00 bjorn3 17426603+bjorn3@users.noreply.github.com 2025-07-06T16:59:30+00:00 urn:sha1:dadc4cae501d9fa515a6cd3b7fe546db13b44a7b 2025-07-21T07:58:44+00:00 bjorn3 17426603+bjorn3@users.noreply.github.com 2025-07-06T16:06:10+00:00 urn:sha1:1a6f941d2b1e9f9987518961d3bc49e2691aab2e 2025-07-21T07:58:44+00:00 bjorn3 17426603+bjorn3@users.noreply.github.com 2025-07-04T07:42:28+00:00 urn:sha1:112799e63772988d874287979b5b4cc8b27668ab The modules vec can already contain serialized modules and there is no need to distinguish between cached and non-cached cgus at LTO time. 2025-07-17T01:58:28+00:00 León Orell Valerian Liehr me@fmease.dev 2025-07-17T01:58:28+00:00 urn:sha1:be5f8f299dce5c04e2a644546e780d8a07b0b14f Various refactors to the LTO handling code In particular reducing the sharing of code paths between fat and thin-LTO and making the fat LTO implementation more self-contained. This also moves some autodiff handling out of cg_ssa into cg_llvm given that Enzyme only works with LLVM anyway and an implementation for another backend may do things entirely differently. This will also make it a bit easier to split LTO handling out of the coordinator thread main loop into a separate loop, which should reduce the complexity of the coordinator thread. 2025-07-14T08:27:08+00:00 Oli Scherer github333195615777966@oli-obk.de 2025-07-09T09:48:46+00:00 urn:sha1:7f95f042677f86df55da58cdebe9ce31a1e928a8 2025-07-12T10:46:43+00:00 bors bors@rust-lang.org 2025-07-12T10:46:43+00:00 urn:sha1:915e5352448afb3c24f89117468935283bc7d2cf Rollup of 9 pull requests Successful merges: - rust-lang/rust#143403 (Port several trait/coherence-related attributes the new attribute system) - rust-lang/rust#143633 (fix: correct assertion to check for 'noinline' attribute presence before removal) - rust-lang/rust#143647 (Clarify and expand documentation for std::sys_common dependency structure) - rust-lang/rust#143716 (compiler: doc/comment some codegen-for-functions interfaces) - rust-lang/rust#143747 (Add target maintainer information for aarch64-unknown-linux-musl) - rust-lang/rust#143759 (Fix typos in function names in the `target_feature` test) - rust-lang/rust#143767 (Bump `src/tools/x` to Edition 2024 and some cleanups) - rust-lang/rust#143769 (Remove support for SwitchInt edge effects in backward dataflow) - rust-lang/rust#143770 (build-helper: clippy fixes) r? `@ghost` `@rustbot` modify labels: rollup 2025-07-12T07:44:04+00:00 bors bors@rust-lang.org 2025-07-12T07:44:04+00:00 urn:sha1:2f9c9cede68be26774ea44efc79d0391f1c58af2 Rollup of 8 pull requests Successful merges: - rust-lang/rust#142391 (rust: library: Add `setsid` method to `CommandExt` trait) - rust-lang/rust#143302 (`tests/ui`: A New Order [27/N]) - rust-lang/rust#143303 (`tests/ui`: A New Order [28/28] FINAL PART) - rust-lang/rust#143568 (std: sys: net: uefi: tcp4: Add timeout support) - rust-lang/rust#143611 (Mention more APIs in `ParseIntError` docs) - rust-lang/rust#143661 (chore: Improve how the other suggestions message gets rendered) - rust-lang/rust#143708 (fix: Include frontmatter in -Zunpretty output ) - rust-lang/rust#143718 (Make UB transmutes really UB in LLVM) r? `@ghost` `@rustbot` modify labels: rollup try-job: i686-gnu-nopt-1 try-job: test-various