llvm-asm was depricated

[smups]

Hi all,

I am trying to update the crate to compile using the current nightly compiler. This requires:

• replacing AllocErr with the new AllocError
• removing implementations of AllocRef, which has been replaced by a blanket impl in std
• reworking the llvm-asm! assembly to platform-specific asm! assembly blocks.

The first two changes are trivial, but I can't fix the last one myself due to not being familiar with assembly at all. The original llvm-asm! macro has been completely removed and the compiler maintainers do not plan on bringing it back¹. Instead, one should manually write platform-specific assembly using the asm! macro.

Could someone help with the last bit?

Would be cool to get this crate working again!

Footnotes

1. this is because llvm assembly is apparently unstable between different versions of llvm ↩