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489233170a
rust/compiler/rustc_codegen_llvm
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bors 489233170a Auto merge of #123781 - RalfJung:miri-fn-identity, r=oli-obk 
Miri function identity hack: account for possible inlining

Having a non-lifetime generic is not the only reason a function can be duplicated. Another possibility is that the function may be eligible for cross-crate inlining. So also take into account the inlining attribute in this Miri hack for function pointer identity.

That said, `cross_crate_inlinable` will still sometimes return true even for `inline(never)` functions:
- when they are `DefKind::Ctor(..) | DefKind::Closure` -- I assume those cannot be `InlineAttr::Never` anyway?
- when `cross_crate_inline_threshold == InliningThreshold::Always`

so maybe this is still not quite the right criterion to use for function pointer identity.
2024-07-04 23:45:56 +00:00
..
src Auto merge of #123781 - RalfJung:miri-fn-identity, r=oli-obk 2024-07-04 23:45:56 +00:00
Cargo.toml sanitizers: Create the rustc_sanitizers crate 2024-04-08 12:05:41 -07:00
messages.ftl Use an error struct instead of a panic 2024-05-15 11:14:45 +02:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

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.