ad02dc46ba
rustc_symbol_mangling: support structural constants and &str in v0. This PR should unblock #85530 (except for float `const` generics, which AFAIK should've never worked). (cc `@tmiasko` could the https://github.com/rust-lang/rust/pull/85530#issuecomment-857855379 failures be retried with a quick crater "subset" run of this PR + changing the default to `v0`? Just to make sure I didn't miss anything other than the floats) The encoding is the one suggested before in e.g. https://github.com/rust-lang/rust/issues/61486#issuecomment-878932102, tho this PR won't by itself finish #61486, before closing that we'd likely want to move to `@oli-obk's` "valtrees" (i.e. #83234 and other associated work). <hr> **EDITs**: 1. switched unit/tuple/braced-with-named-fields `<const-fields>` prefixes from `"u"`/`"T"`/`""` to `"U"`/`"T"`/`"S"` to avoid the ambiguity reported by `@tmiasko` in https://github.com/rust-lang/rust/pull/87194#issuecomment-884279921. 2. `rustc-demangle` PR: https://github.com/alexcrichton/rustc-demangle/pull/55 3. RFC amendment PR: https://github.com/rust-lang/rfcs/pull/3161 * also removed the grammar changes included in that PR, from this description 4. added tests (temporarily using my fork of `rustc-demangle`) <hr> r? `@michaelwoerister` |
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| src | ||
| Cargo.toml | ||
| README.md | ||
The codegen crate contains the code to convert from MIR into LLVM IR,
and then from LLVM IR into machine code. In general it contains code
that runs towards the end of the compilation process.
For more information about how codegen works, see the rustc dev guide.