Assembly support?

[c410-f3r]

Stumbled across this project after searching for a way to verify codegen output. In other words, simulate what you find in, for example, tests/codegen but for library authors.

Unfortunately, I couldn't find an example that interacts with asm so here goes my question: Is there a way to verify generated instructions or is there room for such a feature in the future?

[oli-obk]

There's room for improvement here. Though replicating codegen tests is not straight forward, as it uses some llvm tool I think?

We could roll our own I guess, but that doesn't seem great.

What I wanted to do anyway was to add support for injecting new //@ commands from the user side. So we could write the logic for codegen tests outside of this crate (and pull actual ui tests out of it, too)

[c410-f3r]

Thank you @oli-obk for the information. If needed, I hope I can help implement this feature in the future.

[madsmtm]

You may be able to make use of filecheck as a substitute for LLVM's filecheck for some of this.

[oli-obk]

I'm not certain, but I think it can be implemented now. I added a Flag trait that I'm using to drive rustfix and //@run modes.