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Previously, when a coercion needed to be inserted into a break instruction, the `br` AIR instruction would be rewritten so that the block operand was a sub-block that did the coercion. The problem is that the sub-block itself was never added to the parent block, resulting in the `br` instruction operand being a bad reference. Now, the `br` AIR instruction that needs to have coercion instructions added is replaced with the sub-block itself with type `noreturn`, and then the sub-block has the coercion instructions and a new `br` instruction that breaks from the original block. LLVM backend needed to be fixed to lower `noreturn` blocks without emitting an unused LLVM basic block.
A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
Resources
- Introduction
- Download & Documentation
- Chapter 0 - Getting Started | ZigLearn.org
- Community
- Contributing
- Code of Conduct
- Frequently Asked Questions
- Community Projects
Installation
- download a pre-built binary
- install from a package manager
- build from source
- bootstrap zig for any target
License
The ultimate goal of the Zig project is to serve users. As a first-order effect, this means users of the compiler, helping programmers to write better software. Even more important, however, are the end-users.
Zig is intended to be used to help end-users accomplish their goals. Zig should be used to empower end-users, never to exploit them financially, or to limit their freedom to interact with hardware or software in any way.
However, such problems are best solved with social norms, not with software licenses. Any attempt to complicate the software license of Zig would risk compromising the value Zig provides.
Therefore, Zig is available under the MIT (Expat) License, and comes with a humble request: use it to make software better serve the needs of end-users.
This project redistributes code from other projects, some of which have other licenses besides MIT. Such licenses are generally similar to the MIT license for practical purposes. See the subdirectories and files inside lib/ for more details.