[llvm-dev] Optimised-code debugging experience Round Table

[Eric Christopher via llvm-dev]

+LLDB Dev <lldb-dev at lists.llvm.org>

I'll sign up. :)

My particular interests are:

- Og (and O1 as Og)
- Correctness testing tools

Past that the rest of your list seems quite specific, but the overall "line
tables" and "variable locations" are important.

Relatedly we have a number of DWARF committee members in llvm and another
possible discussion area could be: "what extensions do debug info consumers
think should happen to make dwarf a better input into debugging".

Thanks.

-eric


On Tue, Sep 22, 2020 at 8:43 AM Cazalet-Hyams, Orlando via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hi all,
>
>
>
> I haven't seen a proposal for an optimised-code debugging experience Round
> Table yet so here goes!
>
> Please let me know if you are interested by emailing me at:
>
>
>
>     orlando.hyams at sony.com
>
>
>
> Below is a non-exhaustive list of possible topics. Feel free to include
> any preferences and
>
> suggestions in your response.
>
>
>
>   a. Line tables:
>
>     1. Can we fix is_stmt?
>
>     2. Is prologue_end reliable?
>
>     3. General stepping behaviour/quality.
>
>
>
>   b. Variable locations:
>
>     1. The state of DW_OP_entry_values in llvm.
>
>     2. The state of the instruction-referencing DBG_VALUE work.
>
>     3. The state of multi-register DWARF expressions in llvm.
>
>     4. The possibility of salvaging out-of-liveness values using the 3
> projects mentioned above.
>
>     5. Floating point debug-info quality in llvm.
>
>     6. Loop induction variable locations.
>
>
>
>   c. Testing debug-info:
>
>     1. Variable correctness testing tools.
>
>     2. Location coverage testing tools.
>
>
>
>   d. The state of -Og.
>
>
>
> Please respond before Friday (25th) if you are interested as that is the
> submission deadline.
>
>
>
> Thanks,
>
> Orlando
> _______________________________________________
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> llvm-dev at lists.llvm.org
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>
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