rust/compiler/rustc_codegen_gcc/src, branch stablehttps://github.com/rust-lang/rust
http://git.dreamy.place/mirrors/rust/atom?h=stable2025-07-31T12:19:27+00:00remove rustc_attr_data_structures2025-07-31T12:19:27+00:00Jana Dönszelmannjana@donsz.nl2025-07-31T09:00:40+00:00urn:sha1:e1d3ad89c7a2ad4f5d944a7fee1298ffe8c99645Rollup merge of #144232 - xacrimon:explicit-tail-call, r=WaffleLapkin2025-07-31T05:42:00+00:00Stuart CookZalathar@users.noreply.github.com2025-07-31T05:42:00+00:00urn: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).
Remove support for -Zcombine-cgu2025-07-26T13:52:24+00:00bjorn317426603+bjorn3@users.noreply.github.com2025-07-06T18:03:07+00:00urn: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.
Implement support for explicit tail calls in the MIR block builders and the LLVM codegen backend.2025-07-25T23:02:29+00:00Joel Wejdenståljoel.wejdenstal@gmail.com2025-07-25T19:21:42+00:00urn:sha1:a448837045326d7c33059dc3aa2d1d87529dcf3dRemove each_linked_rlib_for_lto from CodegenContext2025-07-21T07:58:44+00:00bjorn317426603+bjorn3@users.noreply.github.com2025-07-06T16:59:30+00:00urn:sha1:dadc4cae501d9fa515a6cd3b7fe546db13b44a7bMove exported_symbols_for_lto out of CodegenContext2025-07-21T07:58:44+00:00bjorn317426603+bjorn3@users.noreply.github.com2025-07-06T16:06:10+00:00urn:sha1:1a6f941d2b1e9f9987518961d3bc49e2691aab2eMerge exported_symbols computation into exported_symbols_for_lto2025-07-21T07:58:44+00:00bjorn317426603+bjorn3@users.noreply.github.com2025-07-06T15:57:20+00:00urn:sha1:6e757354ada32657886a9ec944c389cb93b9c919
And move exported_symbols_for_lto call from backends to cg_ssa.
Move LTO symbol export calculation from backends to cg_ssa2025-07-21T07:58:44+00:00bjorn317426603+bjorn3@users.noreply.github.com2025-07-04T14:59:53+00:00urn:sha1:1c8dc6f4405124b092dc534d17d4b13f29a4adaeMerge modules and cached_modules for fat LTO2025-07-21T07:58:44+00:00bjorn317426603+bjorn3@users.noreply.github.com2025-07-04T07:42:28+00:00urn: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.
Merge commit 'f682d09eefc6700b9e5851ef193847959acf4fac' into subtree-update_cg_gcc_2025-07-182025-07-18T16:31:20+00:00Guillaume Gomezguillaume1.gomez@gmail.com2025-07-18T16:31:20+00:00urn:sha1:66017df336ae650c7fff2970e470a792036ba4be