coverage: Regression test for "function name is empty" bug #144616
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The bug was triggered by a particular usage of the `?` try operator in a proc-macro expansion. Thanks to lqd for the minimization. Co-authored-by: Rémy Rakic <remy.rakic+github@gmail.com>
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coverage: Regression test for "function name is empty" bug Regression test for rust-lang#141577, which was triggered by rust-lang#144298. The bug was triggered by a particular usage of the `?` try operator in a proc-macro expansion. Thanks to lqd for the minimization at rust-lang#144571 (comment). --- I have manually verified that reverting the relevant follow-up fixes (rust-lang#144480 and rust-lang#144530) causes this test to reproduce the bug: ```sh git revert -m1 8aa3d41 c462895 ``` --- r? compiler
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coverage: Regression test for "function name is empty" bug Regression test for rust-lang#141577, which was triggered by rust-lang#144298. The bug was triggered by a particular usage of the `?` try operator in a proc-macro expansion. Thanks to lqd for the minimization at rust-lang#144571 (comment). --- I have manually verified that reverting the relevant follow-up fixes (rust-lang#144480 and rust-lang#144530) causes this test to reproduce the bug: ```sh git revert -m1 8aa3d41 c462895 ``` --- r? compiler
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Rollup of 11 pull requests Successful merges: - #143883 (Add `--link-targets-dir` argument to linkchecker) - #144236 (Add `core::mem::DropGuard`) - #144303 (Consolidate staging for `rustc_private` tools) - #144367 (Move dist-apple-various from x86_64 to aarch64) - #144539 (constify with_exposed_provenance) - #144569 (rustc-dev-guide subtree update) - #144573 (Raw Pointers are Constant PatKinds too) - #144575 (fixed typo chunks->as_chunks) - #144578 (Ensure correct aligement of rustc_hir::Lifetime on platforms with lower default alignments.) - #144582 (fix `Atomic*::as_ptr` wording) - #144616 (coverage: Regression test for "function name is empty" bug) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup of 10 pull requests Successful merges: - #143883 (Add `--link-targets-dir` argument to linkchecker) - #144236 (Add `core::mem::DropGuard`) - #144367 (Move dist-apple-various from x86_64 to aarch64) - #144539 (constify with_exposed_provenance) - #144569 (rustc-dev-guide subtree update) - #144573 (Raw Pointers are Constant PatKinds too) - #144575 (fixed typo chunks->as_chunks) - #144578 (Ensure correct aligement of rustc_hir::Lifetime on platforms with lower default alignments.) - #144582 (fix `Atomic*::as_ptr` wording) - #144616 (coverage: Regression test for "function name is empty" bug) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of #144616 - Zalathar:try-in-macro, r=jieyouxu coverage: Regression test for "function name is empty" bug Regression test for #141577, which was triggered by #144298. The bug was triggered by a particular usage of the `?` try operator in a proc-macro expansion. Thanks to lqd for the minimization at #144571 (comment). --- I have manually verified that reverting the relevant follow-up fixes (#144480 and #144530) causes this test to reproduce the bug: ```sh git revert -m1 8aa3d41 c462895 ``` --- r? compiler
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coverage: Re-land "Enlarge empty spans during MIR instrumentation" This allows us to assume that coverage spans will only be discarded during codegen in very unusual situations. --- This seemingly-simple change has a rather messy history: - rust-lang#140847 - rust-lang#141650 - rust-lang#144298 - rust-lang#144480 Since then, a number of related changes have landed that should make it reasonable to try again: - rust-lang#144530 - rust-lang#144560 - rust-lang#144616 In particular, we have multiple fixes/mitigations, and a confirmed regression test for the original bug that is not triggered by re-landing the changes in this PR.
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Regression test for #141577, which was triggered by #144298.
The bug was triggered by a particular usage of the
?try operator in a proc-macro expansion.Thanks to lqd for the minimization at #144571 (comment).
I have manually verified that reverting the relevant follow-up fixes (#144480 and #144530) causes this test to reproduce the bug:
r? compiler