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rust/compiler/rustc_codegen_llvm
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Jacob Pratt fa2edee758
Rollup merge of #133446 - Zalathar:querify, r=cjgillot 
coverage: Use a query to identify which counter/expression IDs are used

Given that we already have a query to identify the highest-numbered counter ID in a MIR body, we can extend that query to also build bitsets of used counter/expression IDs. That lets us avoid some messy coverage bookkeeping during the main MIR traversal for codegen.

This does mean that we fail to treat some IDs as used in certain MIR-inlining scenarios, but I think that's fine, because it means that the results will be consistent across all instantiations of a function.

---

There's some more cleanup I want to do in the function coverage collector, since it isn't really collecting anything any more, but I'll leave that for future work.
2024-12-01 21:38:25 -05:00
..
src Rollup merge of #133446 - Zalathar:querify, r=cjgillot 2024-12-01 21:38:25 -05:00
Cargo.toml compiler: Factor rustc_target::abi out of cg_llvm 2024-10-08 18:24:56 -07:00
messages.ftl mark some target features as 'forbidden' so they cannot be (un)set 2024-11-04 22:56:47 +01:00
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.