96c8e2e88c
This upstreams https://github.com/apple/llvm-project/pull/8063. If module FooCore is re-exported through module Foo (by using `export_as` in the modulemap), look for attributes of FooCore symbols in Foo.apinotes file. Swift bundles `std.apinotes` file that adds Swift-specific attributes to the C++ stdlib symbols. In recent versions of libc++, module std got split into multiple top-level modules, each of them is re-exported through std. This change allows us to keep using a single modulemap file for all supported C++ stdlibs. rdar://121680760
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Getting the Source Code and Building LLVM
Consult the Getting Started with LLVM page for information on building and running LLVM.
For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.
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