[llvm-dev] RFC: Reducing Instr PGO size overhead

[Nicolas, Laurent via llvm-dev]

Thank you for doing this.

The size issue is actually a big concern for me.   So this is step in the right direction.

Two other points to consider, that would help us:


1)      When using -fcoverage-mapping, some of the information is emitted in the text section.  This is creating linking issues with very large files.  It does not seem any of this information should necessarily be in the text section.



2)      Could the information emitted for -fcoverage-mapping be placed into their own section(s)?  The objective is to be able to strip the sections for embedded systems.  But we could still use the original (unstripped) binary to run llvm-cov.

Thank you
Laurent
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