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rust/compiler/rustc_codegen_llvm
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Dan Gohman 3c3bf76ce0 Declare main as visibility hidden on targets that default to hidden. 
On targets with `default_hidden_visibility` set, which is currrently
just WebAssembly, declare the generated `main` function with visibility
hidden. This makes it consistent with clang's WebAssembly target, where
`main` is just a user function that gets the same visibility as any
other user function, which is hidden on WebAssembly unless explicitly
overridden.

This will help simplify use cases which in the future may want to
automatically wasm-export all visibility-"default" symbols. `main` isn't
intended to be wasm-exported, and marking it hidden prevents it from
being wasm-exported in that scenario.
2022-09-28 10:42:30 -07:00
..
src Declare main as visibility hidden on targets that default to hidden. 2022-09-28 10:42:30 -07:00
Cargo.toml Remove support for LLVM's legacy pass manager 2022-09-18 13:25:49 -07:00
README.md

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.