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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