Isolate coverage FFI type layouts from their underlying LLVM C++ types #111382
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r? @cuviper (rustbot has picked a reviewer for you, use r? to override) |
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@rustbot label +A-code-coverage +A-LLVM |
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(Note that most or all coverage tests don't run in PR CI, and many of them are silently broken in CI until #111179 lands.) |
The regions don't need to be mutable because we pass a copy of them to LLVM instead, and this matches the `*const` in the Rust-side signature.
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Yeesh, that's tedious, but AFAICT it looks good... @bors r+ |
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🌲 The tree is currently closed for pull requests below priority 50. This pull request will be tested once the tree is reopened. |
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May 11, 2023
…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#108705 (Prevent ICE with broken borrow in closure) - rust-lang#111292 (Fix mishandled `--check-cfg` arguments order) - rust-lang#111382 (Isolate coverage FFI type layouts from their underlying LLVM C++ types) - rust-lang#111385 (vec-shrink-panik: update expectations to work on LLVM 17) - rust-lang#111389 (Add esp-idf platform-support page) - rust-lang#111432 (Use visit_assign to detect SSA locals.) - rust-lang#111448 (Use proper impl self type for alias impl in rustdoc) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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I noticed that several of the types used to send coverage information through FFI are not properly isolated from the layout of their corresponding C++ types in the LLVM API.
This PR adds more explicitly-defined FFI struct/enum types in
CoverageMappingWrapper.cpp, so that Rust source files inrustc_codegen_ssaandrustc_codegen_llvmaren't directly exposed to LLVM C++ types.