7f0a05ada5
Summary: As a companion to libc++ patch https://reviews.llvm.org/D47225, mark builtin atomic non-member functions which accept pointers as nonnull. The atomic non-member functions accept pointers to std::atomic / std::atomic_flag as well as to the non-atomic value. These are all dereferenced unconditionally when lowered, and therefore will fault if null. It's a tiny gotcha for new users, especially when they pass in NULL as expected value (instead of passing a pointer to a NULL value). <rdar://problem/18473124> Reviewers: arphaman Subscribers: aheejin, cfe-commits Differential Revision: https://reviews.llvm.org/D47229 llvm-svn: 333246
Low Level Virtual Machine (LLVM)
This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.