https://bugs.llvm.org/show_bug.cgi?id=37953
Bug ID: 37953
Summary: [meta] [debugify] fix -check-debugify failures
Product: new-bugs
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: greg.bedw...@sony.com
CC: anastasis.gra...@gmail.com, dav...@freebsd.org,
f...@flametop.co.uk, llvm-bugs@lists.llvm.org,
paul_robin...@playstation.sony.com, v...@apple.com
Depends on: 37741, 37942
This is a meta bug for tracking work related to fixing all known failures from
debugify ( https://reviews.llvm.org/D40512 ).
The motivation for this is in order to provide the best possible user
experience when debugging optimized code by ensuring that optimization passes
preserve debug information wherever possible.
>From Bug 37942, Comment 1:
> An error report from -check-debugify should always be considered a compiler
> bug. It would be cumbersome if we couldn't rely on this -- so much so that
> we should consider relaxing -check-debugify rather than allowing it to emit
> false positives.
Referenced Bugs:
https://bugs.llvm.org/show_bug.cgi?id=37741
[Bug 37741] variable information lost from debug info after combine redundant
instructions
https://bugs.llvm.org/show_bug.cgi?id=37942
[Bug 37942] [debugify] fails from Combine redundant instructions and SROA
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