search for: rl224894

...trailing/leading zeroes) if `isCheapToSpeculateCtlz/isCheapToSpeculatCttz` in TargetLowering return true. [r224899](http://reviews.llvm.org/rL224899). ## Clang commits * The Clang internals manual has been extended with stub sections on Parse, Sema, and CodeGen. [r224894](http://reviews.llvm.org/rL224894). ## Other project commits * The libcxx LIT test-suite has seen a number of new configuration options. Even better, these are [now documented](http://libcxx.llvm.org/lit_usage.html). [r224728](http://reviews.llvm.org/rL224728).