Interprocedural optimization in GCC

Random thoughts on programming languages, compilers, operating systems, etc. Compilers can do a better job optimizing a function if they can use knowledge of other functions. The obvious case is inlining, but there are many more cases. This post lists the interprocedural optimizations implemented in GCC 7. Many of the optimizations are only relevant for large functions (small functions are inlined

[masterq]

GCC 7での最適化の話。"which are enabled by default at -Os, -O2, and -O3." うぉぉぉ