[PATCH] D92803: [SystemZFrameLowering] Make sure R1 holding the backchain is not corrupted by probing

[Jonas Paulsson via Phabricator via llvm-commits]

jonpa added a comment.

Hmm... now that R0D is used for the loop exit, and R1D is used for the backchain, perhaps the backchain actually could be handled just in emitPrologue()?


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  https://reviews.llvm.org/D92803/new/

https://reviews.llvm.org/D92803