[PATCH] D87302: [IRSim][IROutliner] Adding DebugInfo handling for IR outlined functions.

[Jeremy Morse via Phabricator via llvm-commits]

jmorse added a comment.

Hi,

In D87302#2810683 <https://reviews.llvm.org/D87302#2810683>, @AndrewLitteken wrote:

> I think that's certainly possible.  If there was a way in the debug info to say that a specific section of IR is from Section A of the program if called from location A, Section B if called from location B etc that would solve the problem.  I don't know enough about DebugInfo to really say how difficult that would be though.

Not a super-DWARF-expert, but I don't believe this can be expressed in DWARF today. It's certainly a significant limitation -- there are numerous scenarios where we "common" instructions together, and drop the line number, because it now reflects operations from multiple parts of program. And none of those line numbers are appropriate to present in isolation.

(It certainly isn't supported by LLVM debuginfo; I've no knowledge of what's supported by the CodeView file format).


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https://reviews.llvm.org/D87302