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b7e2078e
2019 Feb 21
3
Preserving debug metadata across optimization
Hi,
I've recently run into a problem of missing !dbg metadata after the
code has been optimized (even opt -O1).
The original code was generated using llvmlite python package and I've
verified that all instructions have their !dbg metadata present.
After optimizing the module (even opt -O1) I see that some
instructions (~25%) don't have any dbg metadata.
These are mostly getelementptr