Improved support of collapse_debuginfo attribute for macros. #118903

azhogin · 2023-12-13T05:29:06Z

Added walk_chain_collapsed function to consider collapse_debuginfo attribute in parent macros in call chain.
Fixed collapse_debuginfo attribute processing for cranelift (there was if/else branches error swap).

cc #100758

rustbot · 2023-12-13T05:29:15Z

r? @WaffleLapkin

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rustbot · 2023-12-13T05:29:17Z

Some changes occurred in compiler/rustc_codegen_cranelift

cc @bjorn3

compiler/rustc_middle/src/ty/mod.rs

WaffleLapkin · 2023-12-13T09:21:47Z

r? @bjorn3

compiler/rustc_span/src/hygiene.rs

petrochenkov · 2023-12-13T16:19:22Z

cc @davidtwco

tests/debuginfo/skip_second_statement_si_collapse.rs

tests/debuginfo/skip_second_statement.rs

compiler/rustc_middle/src/ty/mod.rs

tests/debuginfo/collapse-debuginfo-in-non-collapse-macro.rs

petrochenkov · 2023-12-15T15:49:20Z

@azhogin to split the work into two parts - one with tests and bugfixes, and another with enabling collapse_debuginfo for built-in and standard library macros.
@rustbot author

azhogin · 2023-12-21T11:18:54Z

@azhogin to split the work into two parts - one with tests and bugfixes, and another with enabling collapse_debuginfo for built-in and standard library macros. @rustbot author

This PR converted into first part - no default attribute for builtin/std macros.
Added the required test cases.
@rustbot review

tests/debuginfo/skip_second_statement_collapse.rs

tests/debuginfo/skip_second_statement_si_collapse.rs

compiler/rustc_middle/src/ty/mod.rs

compiler/rustc_span/src/hygiene.rs

compiler/rustc_middle/src/ty/mod.rs

compiler/rustc_span/src/hygiene.rs

petrochenkov · 2023-12-21T16:38:05Z

Mostly ready, some minor comments.
@rustbot author

davidtwco

To make sure I understand correctly, this just makes #[collapse_debuginfo] work when macro calls to annotated macros are themselves within a macro?

I'd appreciate some additional comments/documentation as per my review comments below, some of these tests are quite hard to understand otherwise.

compiler/rustc_span/src/hygiene.rs

tests/debuginfo/collapse-debuginfo-in-non-collapse-macro.rs

tests/debuginfo/skip_second_statement.rs

azhogin · 2024-01-05T11:52:43Z

To make sure I understand correctly, this just makes #[collapse_debuginfo] work when macro calls to annotated macros are themselves within a macro?

I'd appreciate some additional comments/documentation as per my review comments below, some of these tests are quite hard to understand otherwise.

Yes, to correctly process chained situations: tagged macro inside untagged macro, tagged macro inside untagged macro etc.
Also, there was (probably), if-else branch swapped in compiler/rustc_codegen_cranelift/src/debuginfo/line_info.rs:

let span = if tcx.should_collapse_debuginfo(span) {
    span
} else {
    // Walk up the macro expansion chain until we reach a non-expanded span.
    // We also stop at the function body level because no line stepping can occur
    // at the level above that.
    rustc_span::hygiene::walk_chain(span, function_span.ctxt())
};

Right?

petrochenkov · 2024-01-08T11:42:22Z

@bors r+

bors · 2024-01-08T11:42:25Z

📌 Commit f2dbeba has been approved by petrochenkov

It is now in the queue for this repository.

…ebuginfo.rs, r=petrochenkov Improved support of collapse_debuginfo attribute for macros. Added walk_chain_collapsed function to consider collapse_debuginfo attribute in parent macros in call chain. Fixed collapse_debuginfo attribute processing for cranelift (there was if/else branches error swap). cc rust-lang#100758

…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#118903 (Improved support of collapse_debuginfo attribute for macros.) - rust-lang#119033 (coverage: `llvm-cov` expects column numbers to be bytes, not code points) - rust-lang#119654 (bump bootstrap dependencies) - rust-lang#119660 (remove an unnecessary stderr-per-bitwidth) - rust-lang#119663 (tests: Normalize `\r\n` to `\n` in some run-make tests) - rust-lang#119681 (coverage: Anonymize line numbers in branch views) - rust-lang#119704 (Fix two variable binding issues in lint let_underscore) - rust-lang#119725 (Add helper for when we want to know if an item has a host param) r? `@ghost` `@rustbot` modify labels: rollup

…ebuginfo.rs, r=petrochenkov Improved support of collapse_debuginfo attribute for macros. Added walk_chain_collapsed function to consider collapse_debuginfo attribute in parent macros in call chain. Fixed collapse_debuginfo attribute processing for cranelift (there was if/else branches error swap). cc rust-lang#100758

…iaskrgr Rollup of 11 pull requests Successful merges: - rust-lang#116343 (Stop mentioning internal lang items in no_std binary errors) - rust-lang#118903 (Improved support of collapse_debuginfo attribute for macros.) - rust-lang#119033 (coverage: `llvm-cov` expects column numbers to be bytes, not code points) - rust-lang#119598 (Fix a typo in core::ops::Deref's doc) - rust-lang#119660 (remove an unnecessary stderr-per-bitwidth) - rust-lang#119663 (tests: Normalize `\r\n` to `\n` in some run-make tests) - rust-lang#119681 (coverage: Anonymize line numbers in branch views) - rust-lang#119704 (Fix two variable binding issues in lint let_underscore) - rust-lang#119725 (Add helper for when we want to know if an item has a host param) - rust-lang#119738 (Add `riscv32imafc-esp-espidf` tier 3 target for the ESP32-P4.) - rust-lang#119740 (Remove crossbeam-channel) Failed merges: - rust-lang#119723 (Remove `-Zdont-buffer-diagnostics`.) r? `@ghost` `@rustbot` modify labels: rollup

…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#118903 (Improved support of collapse_debuginfo attribute for macros.) - rust-lang#119033 (coverage: `llvm-cov` expects column numbers to be bytes, not code points) - rust-lang#119598 (Fix a typo in core::ops::Deref's doc) - rust-lang#119660 (remove an unnecessary stderr-per-bitwidth) - rust-lang#119663 (tests: Normalize `\r\n` to `\n` in some run-make tests) - rust-lang#119681 (coverage: Anonymize line numbers in branch views) - rust-lang#119704 (Fix two variable binding issues in lint let_underscore) - rust-lang#119725 (Add helper for when we want to know if an item has a host param) - rust-lang#119738 (Add `riscv32imafc-esp-espidf` tier 3 target for the ESP32-P4.) - rust-lang#119740 (Remove crossbeam-channel) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of rust-lang#118903 - azhogin:azhogin/skip_second_stmt_debuginfo.rs, r=petrochenkov Improved support of collapse_debuginfo attribute for macros. Added walk_chain_collapsed function to consider collapse_debuginfo attribute in parent macros in call chain. Fixed collapse_debuginfo attribute processing for cranelift (there was if/else branches error swap). cc rust-lang#100758

…ebuginfo.rs, r=petrochenkov Improved support of collapse_debuginfo attribute for macros. Added walk_chain_collapsed function to consider collapse_debuginfo attribute in parent macros in call chain. Fixed collapse_debuginfo attribute processing for cranelift (there was if/else branches error swap). cc rust-lang#100758

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azhogin force-pushed the azhogin/skip_second_stmt_debuginfo.rs branch from 374c882 to 2fa1ecf Compare December 13, 2023 06:58

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azhogin force-pushed the azhogin/skip_second_stmt_debuginfo.rs branch from b5cb3ee to 2546264 Compare December 14, 2023 12:32

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Tracking Issue for #[collapse_debuginfo] #100758

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azhogin force-pushed the azhogin/skip_second_stmt_debuginfo.rs branch from dc993ca to 24df98d Compare December 21, 2023 08:29

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Improved support of collapse_debuginfo attribute for macros.

f2dbeba

azhogin force-pushed the azhogin/skip_second_stmt_debuginfo.rs branch from 5fee6e5 to f2dbeba Compare January 8, 2024 10:47

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Jan 8, 2024

matthiaskrgr mentioned this pull request Jan 8, 2024

Rollup of 8 pull requests #119737

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Rollup of 8 pull requests #119745

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Rollup of 11 pull requests #119747

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Rollup of 10 pull requests #119754

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bors merged commit ee7d4c1 into rust-lang:master Jan 9, 2024
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petrochenkov mentioned this pull request Feb 12, 2024

debuginfo: Stabilize -Z debug-macros, -Z collapse-macro-debuginfo and #[collapse_debuginfo] #120845

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Improved support of collapse_debuginfo attribute for macros. #118903

Improved support of collapse_debuginfo attribute for macros. #118903

azhogin commented Dec 13, 2023 •

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Improved support of collapse_debuginfo attribute for macros. #118903

Improved support of collapse_debuginfo attribute for macros. #118903

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