a19edd6b16
rustc_codegen_ssa: don't treat inlined variables as debuginfo arguments. Fixes #67586 by limiting `ArgumentVariable` special-casing to `VarDebugInfo` entries that are in `OUTERMOST_SOURCE_SCOPE`, i.e. the function's own argument scope. That excludes `VarDebugInfo` from inlined callees, which can also point to the caller's argument locals. This is a snippet from the optimized MIR (including inlining) of the testcase: ```rust fn foo(_1: usize) -> usize { debug bar => _1; // in scope 0 at ./example.rs:2:12: 2:15 let mut _0: usize; // return place in scope 0 at ./example.rs:2:27: 2:32 scope 1 { debug x => _1; // in scope 1 at /rustc/9ed29b6ff6aa2e048b09c27af8f62ee3040bdb37/src/libcore/convert/mod.rs:106:26: 106:27 } ``` `scope 1` is from inlining the `identity` call, and `debug x => _1;` comes from the body of `core::convert::identity`, so they are now ignored for the purposes of determining the `ArgumentVariable` debuginfo associated to `_1`. |
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| .. | ||
| bootstrap | ||
| build_helper | ||
| ci | ||
| doc | ||
| etc | ||
| liballoc | ||
| libarena | ||
| libcore | ||
| libfmt_macros | ||
| libgraphviz | ||
| libpanic_abort | ||
| libpanic_unwind | ||
| libproc_macro | ||
| libprofiler_builtins | ||
| librustc | ||
| librustc_apfloat | ||
| librustc_ast_lowering | ||
| librustc_ast_passes | ||
| librustc_ast_pretty | ||
| librustc_attr | ||
| librustc_builtin_macros | ||
| librustc_codegen_llvm | ||
| librustc_codegen_ssa | ||
| librustc_codegen_utils | ||
| librustc_data_structures | ||
| librustc_driver | ||
| librustc_error_codes | ||
| librustc_errors | ||
| librustc_expand | ||
| librustc_feature | ||
| librustc_fs_util | ||
| librustc_hir | ||
| librustc_incremental | ||
| librustc_index | ||
| librustc_interface | ||
| librustc_lexer | ||
| librustc_lint | ||
| librustc_llvm | ||
| librustc_macros | ||
| librustc_metadata | ||
| librustc_mir | ||
| librustc_mir_build | ||
| librustc_parse | ||
| librustc_passes | ||
| librustc_plugin_impl | ||
| librustc_privacy | ||
| librustc_resolve | ||
| librustc_save_analysis | ||
| librustc_session | ||
| librustc_span | ||
| librustc_target | ||
| librustc_traits | ||
| librustc_ty | ||
| librustc_typeck | ||
| librustdoc | ||
| libserialize | ||
| libstd | ||
| libsyntax | ||
| libterm | ||
| libtest | ||
| libunwind | ||
| llvm-project@d7cdb43592 | ||
| rtstartup | ||
| rustc | ||
| rustllvm | ||
| stdarch@dea57529b3 | ||
| test | ||
| tools | ||
| README.md | ||
| stage0.txt | ||
This directory contains the source code of the rust project, including:
rustcand its testslibstd- Various submodules for tools, like rustdoc, rls, etc.
For more information on how various parts of the compiler work, see the rustc guide.