XCOFF associated metadata (#159096) Add a new metadata node `!implicit.ref` to represent an implicit dependency between 2 symbols. The metadata is unique to AIX and gets lowered to a relocation that adds an explicit link between the section the global that the metadata is placed on is allocated in, to the asscoiated symbol. This relocation will cause the associated symbol to remain live if the section is not garbage collected. This is used mainly for compiler features where there is some hidden runtime dependency between the symbols that isn't otherwise obvious to the linker.
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.
Consult the Getting Started with LLVM page for information on building and running LLVM.
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