[PATCH] D141264: [AVR] Fix incorrect expansion of pseudo instructions LPMWRdZ/ELPMWRdZ

[Ayke via Phabricator via llvm-commits]

aykevl added a comment.

This code modifies the pointer register, without restoring it. The pointer register should be restored to the previous value if it is is not killed (subtract one from the pointer value). See the expansion of LDDWRdPtrQ for avrtiny for example.


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https://reviews.llvm.org/D141264