[PATCH] D68524: [AVR] Rewrite the function calling convention.

[Dylan McKay via Phabricator via llvm-commits]

dylanmckay added a comment.

Rebased version with @Sh4rK's comments fixed.

F12195738: D68524-rebased.diff <https://reviews.llvm.org/F12195738>

I've checked and indeed it does not regress any of the LLVM AVR unit tests.

I'd like to merge it as-is, although I'd like to write a calling convention integration test [here](github.com/dylanmckay/avr-compiler-integration-tests) first. I plan to get to this in the next few days.


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  https://reviews.llvm.org/D68524/new/

https://reviews.llvm.org/D68524