Update to newer compiler version.

[0ndorio]

@MabezDev Your repo is still based on rustc v1.33.0 but your patches apply without any complications on stable rustc v1.37.0 (maybe even current beta or nightly).

What do you think about rebasing or merging onto a newer version? Especially as rustc v1.36.0 stabilized the alloc crate which means that any no_std crate which calls extern crate alloc without the #[feature(alloc)] flag can't get compiled with the current state.

I did a few tests locally with an updated version and couldn't trigger any issues. Is there anything related to llvm-xtensa which would require to stay on an older version?

[MabezDev]

Oh really? I was under the impression the minimum llvm version for rust was bumped since, if that's not the case I'd happily rebase.

[0ndorio]

You may do a few tests before but at least for me it worked out. For example https://github.com/cuviper/num-bigint/tree/alloc (an open merge request on num-bigint for no_std environments) couldn't be compiled before not it works just fine.

[MabezDev]

Looked into it a bit further, as per the 1.33 change log the minimum supported llvm version is 6. So it should be fine to rebase. I'll try to get to it this weekend.

[pacmancoder]

Hello! So, it there are any news on rebasing rust-xtensa to 1.36/1.37 ? 😃

[0ndorio]

@pacmancoder If you want to try it you could temporary use 0ndorio@dfad57c. This is a merge of stable 1.37 without any merge conflicts during the process.

[MabezDev]

Sorry this took so long! I've got a PR open with the rebase, I'd like to give it few days for some people to test and chime in on any issue before merging.

[MabezDev]

Closed in #8