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DebugInfo: Updates test cases that add method declarations. #114760

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DianQK
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@DianQK DianQK commented Aug 12, 2023

We've investigated one reason why debugging information often goes wrong at https://reviews.llvm.org/D152095.

LLVM can't handle IR where subprogram definitions are nested within DICompositeType when doing LTO builds, because there's no good way to cross the CU boundary to insert a nested DISubprogram definition in one CU into a type defined in another CU.

In #111167, we added a declaration for the DISubprogram for the method. This PR completes this test case.

stream history: https://rust-lang.zulipchat.com/#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/Dwarf.20CUs/near/384269475.

We've investigated one reason why debugging information often goes wrong at https://reviews.llvm.org/D152095.
> LLVM can't handle IR where subprogram definitions are nested within DICompositeType when doing LTO builds,
> because there's no good way to cross the CU boundary to insert a nested DISubprogram definition in one CU into a type defined in another CU.
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rustbot commented Aug 12, 2023

r? @Mark-Simulacrum

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@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 12, 2023
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DianQK commented Aug 12, 2023

r? @cuviper

@rustbot rustbot assigned cuviper and unassigned Mark-Simulacrum Aug 12, 2023
@DianQK DianQK force-pushed the update-test-for-type-decl-disubprogram branch from d06ceec to 6f5b4e3 Compare August 13, 2023 13:48
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cuviper commented Aug 14, 2023

Thanks!

@bors r+ rollup

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bors commented Aug 14, 2023

📌 Commit 6f5b4e3 has been approved by cuviper

It is now in the queue for this repository.

@bors 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-review Status: Awaiting review from the assignee but also interested parties. labels Aug 14, 2023
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 14, 2023
…iaskrgr

Rollup of 5 pull requests

Successful merges:

 - rust-lang#114745 (Make Const more useful in smir)
 - rust-lang#114752 (fixed *const [type error] does not implement the Copy trait)
 - rust-lang#114760 (DebugInfo: Updates test cases that add method declarations.)
 - rust-lang#114815 (Update books)
 - rust-lang#114817 (Remove unnecessary FIXME)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit e6a5ff2 into rust-lang:master Aug 14, 2023
@rustbot rustbot added this to the 1.73.0 milestone Aug 14, 2023
@DianQK DianQK deleted the update-test-for-type-decl-disubprogram branch August 14, 2023 22:21
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5 participants