【Zig 日报】2024-07-17 简单解释一下 Zig 为什么要放弃 LLVM

[jiacai2050]

有人在 ziggit 上的提问，Andrew 的回应：

• LLVM is slow.
• Using a third-party backend for the compiler limits what kind of end-to-end innovations are possible.
• Bugs in Zig are significantly easier for us to fix than bugs in LLVM.
• LLVM regularly ships with regressions even though we report them against release candidates.
• Building Zig from source is made obnoxiously difficult by LLVM. This affects Zig’s availability in system package managers, limits contributions from the open source community, and makes our bootstrap chain depend on C++.
• Many of our users are interested in avoiding an LLVM monoculture.
• LLVM development moves slowly. Zig gained a C backend faster than LLVM, for example.
• We want to add support for many more target CPU architectures than LLVM supports.
• We cannot control the quality of the LLVM libraries that appear in the wild, and misconfigured LLVM installations reflect poorly on Zig itself. This happens regularly.

[kkHAIKE]

好像还有一点是：LLVM 限制了 async/await 的实现

[jiacai2050]

有很多朋友对这件事本身还是有些误解，这里贴上之前群聊的内容：