[PATCH] D39287: Add a flag to disable inlining calls to cygprofile functions generated by -finstrument-functions

[Hal Finkel via Phabricator via llvm-commits]

hfinkel added a comment.

If you only want these calls post-inlining (and otherwise wish to minimize the effect on the rest of the optimizer), I'd recommend a different approach. What we did for mcount, which has similar requirements, was that we had the frontend add an attribute, and then a late pass actually added the function calls (lib/CodeGen/CountingFunctionInserter.cpp). I recommend extending CountingFunctionInserter to enable it to add these functions (based on some additional attribute), and then just add whatever attribute is necessary in the frontend based on some new flag.


https://reviews.llvm.org/D39287