Popular C compilers like GCC or clang allow to optimise for binary size.
Since there are multiple ways in which GHC trades code size for faster programs, it might make sense to follow suit. This ticket is for tracking which optimisations/hacks in the compiler might be affected.
Feel free to add items to the following list:
- potentially huge impact due to specialisation, liberate case and inlining
- potential of -0.9% due to a second run of common block elimination (#14226)
- +0.1% increase in code size due to known calls instead of re-using generic apply thunks in #16005 (closed)
- -0.1% due to