Clang also has a more explicit __builtin_assume(expression) builtin, although anecdotally GCC makes better use of these hints. Folly has a function to make it p

Clang also has a more explicit __builtin_assume(expression) builtin, although anecdotally GCC makes better use of these hints. Folly has a function to make it portable: https://github.com/facebook/folly/blob/bb5ed8070d533c016e1e93cd274e76ce28a780bb/folly/Assume.h#L35 https://github.com/facebook/folly/blob/bb5ed8070d533c016e1e9...