AsmJit: Lightweight C++ library for low-latency machine code generation

It's not, SSA and an optimizing pipeline was never the goal of AsmJit actually. You emit your SIMD code as you want it an no optimizer or other transformations mess with it - that's the goal and it works great for use-cases that don't need an additional optimizing pipeline.

However, it can do the mentioned cross-compilation. AsmJit is not dependent on host architecture in any way - you can generate AArch64 on X86 and vice versa. It's of course more optimized for JIT so it offers many tools to help with creating your own lightweight JIT compilers and running the code you generate.

So, no, it's not an LLVM alternative, but it's also not a trivial assembling engine. It has a unique position as it optimizes for low-latency code generation, which LLVM doesn't.

You're right. I am going to leave HN. Clearly I am not smart enough to be here. Everything I have said here in the past month has been proven wrong by a commenter, and it has gradually dawned on me that I'm just not as smart or experienced or knowledgeable as I thought I was. I'll find some programming subreddit or something that's more at my level. Thanks for helping me see this.