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bors 284f94f9c0 Auto merge of #121298 - nikic:writable, r=cuviper 
Set writable and dead_on_unwind attributes for sret arguments

Set the `writable` and `dead_on_unwind` attributes for `sret` arguments. This allows call slot optimization to remove more memcpy's.

See https://llvm.org/docs/LangRef.html#parameter-attributes for the specification of these attributes. In short, the statement we're making here is that:

 * The return slot is writable.
 * The return slot will not be read if the function unwinds.

Fixes https://github.com/rust-lang/rust/issues/90595.
 		2024-04-25 04:31:56 +00:00
..
src Auto merge of #121298 - nikic:writable, r=cuviper 2024-04-25 04:31:56 +00:00
Cargo.toml sanitizers: Create the rustc_sanitizers crate 2024-04-08 12:05:41 -07:00
README.md
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messages.ftl Emit a diagnostic for invalid target options 2024-02-03 22:03:25 -05:00

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.