Remove `-Zdump-mir-spanview` by Zalathar · Pull Request #119566 · rust-lang/rust
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Jan 4, 2024matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request
Jan 5, 2024…em,Nilstrieb Remove `-Zdump-mir-spanview` The `-Zdump-mir-spanview` flag was added back in rust-lang#76074, as a development/debugging aid for the initial work on what would eventually become `-Cinstrument-coverage`. It causes the compiler to emit an HTML file containing a function's source code, with various spans highlighted based on the contents of MIR. When the suggestion was made to [triage and remove unnecessary `-Z` flags (Zulip)](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.60-Z.60.20option.20triage), I noted that this flag could potentially be worth removing, but I wanted to keep it around to see whether I found it useful for my own coverage work. But when I actually tried to use it, I ran into various issues (e.g. it crashes on `tests/coverage/closure.rs`). If I can't trust it to work properly without a full overhaul, then instead of diving down a rabbit hole of trying to fix arcane span-handling bugs, it seems better to just remove this obscure old code entirely. --- `@rustbot` label +A-code-coverage
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request
Jan 5, 2024…em,Nilstrieb Remove `-Zdump-mir-spanview` The `-Zdump-mir-spanview` flag was added back in rust-lang#76074, as a development/debugging aid for the initial work on what would eventually become `-Cinstrument-coverage`. It causes the compiler to emit an HTML file containing a function's source code, with various spans highlighted based on the contents of MIR. When the suggestion was made to [triage and remove unnecessary `-Z` flags (Zulip)](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.60-Z.60.20option.20triage), I noted that this flag could potentially be worth removing, but I wanted to keep it around to see whether I found it useful for my own coverage work. But when I actually tried to use it, I ran into various issues (e.g. it crashes on `tests/coverage/closure.rs`). If I can't trust it to work properly without a full overhaul, then instead of diving down a rabbit hole of trying to fix arcane span-handling bugs, it seems better to just remove this obscure old code entirely. --- ``@rustbot`` label +A-code-coverage
bors added a commit to rust-lang-ci/rust that referenced this pull request
Jan 5, 2024…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#117556 (Disallow reference to `static mut` and adding `static_mut_ref` lint) - rust-lang#119354 (Make `negative_bounds` internal & fix some of its issues) - rust-lang#119420 (Handle ForeignItem as TAIT scope.) - rust-lang#119506 (Use `resolutions(()).effective_visiblities` to avoid cycle errors in `report_object_error`) - rust-lang#119566 (Remove `-Zdump-mir-spanview`) - rust-lang#119567 (Remove `-Zreport-delayed-bugs`.) - rust-lang#119577 (Migrate memory overlap check from validator to lint) - rust-lang#119586 ([rustdoc] Fix invalid handling for static method calls in jump to definition feature) - rust-lang#119588 (Move `i586-unknown-netbsd` from tier 2 to tier 3 platform support table) r? `@ghost` `@rustbot` modify labels: rollup
GuillaumeGomez added a commit to GuillaumeGomez/rust that referenced this pull request
Jan 5, 2024…em,Nilstrieb Remove `-Zdump-mir-spanview` The `-Zdump-mir-spanview` flag was added back in rust-lang#76074, as a development/debugging aid for the initial work on what would eventually become `-Cinstrument-coverage`. It causes the compiler to emit an HTML file containing a function's source code, with various spans highlighted based on the contents of MIR. When the suggestion was made to [triage and remove unnecessary `-Z` flags (Zulip)](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.60-Z.60.20option.20triage), I noted that this flag could potentially be worth removing, but I wanted to keep it around to see whether I found it useful for my own coverage work. But when I actually tried to use it, I ran into various issues (e.g. it crashes on `tests/coverage/closure.rs`). If I can't trust it to work properly without a full overhaul, then instead of diving down a rabbit hole of trying to fix arcane span-handling bugs, it seems better to just remove this obscure old code entirely. --- ```@rustbot``` label +A-code-coverage
bors added a commit to rust-lang-ci/rust that referenced this pull request
Jan 5, 2024…llaumeGomez Rollup of 10 pull requests Successful merges: - rust-lang#119354 (Make `negative_bounds` internal & fix some of its issues) - rust-lang#119414 (bootstrap: Move -Clto= setting from Rustc::run to rustc_cargo) - rust-lang#119420 (Handle ForeignItem as TAIT scope.) - rust-lang#119506 (Use `resolutions(()).effective_visiblities` to avoid cycle errors in `report_object_error`) - rust-lang#119538 (Cleanup error handlers: round 5) - rust-lang#119566 (Remove `-Zdump-mir-spanview`) - rust-lang#119567 (Remove `-Zreport-delayed-bugs`.) - rust-lang#119577 (Migrate memory overlap check from validator to lint) - rust-lang#119586 ([rustdoc] Fix invalid handling for static method calls in jump to definition feature) - rust-lang#119588 (Move `i586-unknown-netbsd` from tier 2 to tier 3 platform support table) r? `@ghost` `@rustbot` modify labels: rollup
bors added a commit to rust-lang-ci/rust that referenced this pull request
Jan 5, 2024…mpiler-errors Rollup of 10 pull requests Successful merges: - rust-lang#119034 (Allow coverage tests to ignore test modes, and to enable color in coverage reports) - rust-lang#119148 (Tweak suggestions for bare trait used as a type) - rust-lang#119538 (Cleanup error handlers: round 5) - rust-lang#119566 (Remove `-Zdump-mir-spanview`) - rust-lang#119567 (Remove `-Zreport-delayed-bugs`.) - rust-lang#119577 (Migrate memory overlap check from validator to lint) - rust-lang#119583 (Make `intrinsics::assume` const stable) - rust-lang#119586 ([rustdoc] Fix invalid handling for static method calls in jump to definition feature) - rust-lang#119588 (Move `i586-unknown-netbsd` from tier 2 to tier 3 platform support table) - rust-lang#119601 (`Emitter` cleanups) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request
Jan 5, 2024Rollup merge of rust-lang#119566 - Zalathar:remove-spanview, r=Swatinem,Nilstrieb Remove `-Zdump-mir-spanview` The `-Zdump-mir-spanview` flag was added back in rust-lang#76074, as a development/debugging aid for the initial work on what would eventually become `-Cinstrument-coverage`. It causes the compiler to emit an HTML file containing a function's source code, with various spans highlighted based on the contents of MIR. When the suggestion was made to [triage and remove unnecessary `-Z` flags (Zulip)](https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/.60-Z.60.20option.20triage), I noted that this flag could potentially be worth removing, but I wanted to keep it around to see whether I found it useful for my own coverage work. But when I actually tried to use it, I ran into various issues (e.g. it crashes on `tests/coverage/closure.rs`). If I can't trust it to work properly without a full overhaul, then instead of diving down a rabbit hole of trying to fix arcane span-handling bugs, it seems better to just remove this obscure old code entirely. --- ````@rustbot```` label +A-code-coverage
Zalathar added a commit to Zalathar/rust that referenced this pull request
Jan 16, 2024HTML files were needed for testing `-Z dump-mir-spanview`, but that flag has been removed by rust-lang#119566.
tshepang pushed a commit to rust-lang/rustc-dev-guide that referenced this pull request
Jan 16, 2024matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request
Jan 16, 2024Don't allow `.html` files in `tests/mir-opt/` HTML files were needed for testing `-Z dump-mir-spanview`, but that flag has been removed by rust-lang#119566.
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request
Jan 16, 2024Rollup merge of rust-lang#120018 - Zalathar:mir-opt-html, r=Nilstrieb Don't allow `.html` files in `tests/mir-opt/` HTML files were needed for testing `-Z dump-mir-spanview`, but that flag has been removed by rust-lang#119566.
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request
Jan 18, 2024Don't create a separate "basename" when naming and opening a MIR dump file These functions were split up by rust-lang#77080, in order to support passing the dump file's “basename” (filename without extension) to the implementation of `-Zdump-mir-spanview`, so that it could be used as a page title. That flag has since been removed (rust-lang#119566), so now there's no particular reason for this code to handle the basename separately from the filename or full path. This PR therefore restores things to (roughly) how they were before rust-lang#77080.
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request
Jan 18, 2024Don't create a separate "basename" when naming and opening a MIR dump file These functions were split up by rust-lang#77080, in order to support passing the dump file's “basename” (filename without extension) to the implementation of `-Zdump-mir-spanview`, so that it could be used as a page title. That flag has since been removed (rust-lang#119566), so now there's no particular reason for this code to handle the basename separately from the filename or full path. This PR therefore restores things to (roughly) how they were before rust-lang#77080.
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request
Jan 18, 2024Don't create a separate "basename" when naming and opening a MIR dump file These functions were split up by rust-lang#77080, in order to support passing the dump file's “basename” (filename without extension) to the implementation of `-Zdump-mir-spanview`, so that it could be used as a page title. That flag has since been removed (rust-lang#119566), so now there's no particular reason for this code to handle the basename separately from the filename or full path. This PR therefore restores things to (roughly) how they were before rust-lang#77080.
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request
Jan 18, 2024Rollup merge of rust-lang#120038 - Zalathar:dump-path, r=WaffleLapkin Don't create a separate "basename" when naming and opening a MIR dump file These functions were split up by rust-lang#77080, in order to support passing the dump file's “basename” (filename without extension) to the implementation of `-Zdump-mir-spanview`, so that it could be used as a page title. That flag has since been removed (rust-lang#119566), so now there's no particular reason for this code to handle the basename separately from the filename or full path. This PR therefore restores things to (roughly) how they were before rust-lang#77080.
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