[PATCH] D64830: [Xtensa 4/10] Add basic *td files with Xtensa architecture description.

[Roman Valls Guimera via Phabricator via llvm-commits]

brainstorm added a comment.

Hello LLVM,

I own an Xtensa ISA document from 2015 and I can confirm that the 2010 ISA document linked above (https://0x04.net/~mwk/doc/xtensa.pdf as @philip-peterson points out) is sufficient to proceed with this review since the changes between those two documents are not that substantial on a first pass. So please, could you take that 0x04.net as authoritative source for this review?

I'd be happy to help review corner cases as they pop up if need be, @ivanbaev @jyknight.

Please bear with me LLVM maintainers since I've never upstreamed a compiler backend, but is there any other document than https://www.llvm.org/docs/WritingAnLLVMBackend.html which outlines the comformance testing required to get this xtensa work in-tree? I would like to see this backend supported in LLVM after all the effort that @andreisfr has put into this.


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https://reviews.llvm.org/D64830