angrycoder

·15年前·讨论

Regarding compiler passes in LLVM: Depending on the optimization level, different passes are run: for example at -O0 (no optimization) the Clang compiler runs no passes, at -O3 it runs a series of 67 passes in its optimizer (as of LLVM 2.8).

http://www.aosabook.org/en/llvm.html