[PATCH] D65019: [ARM] push LR before __gnu_mcount_nc on ARM

[Jian Cai via Phabricator via llvm-commits]

jcai19 added a comment.

In D65019#1594289 <https://reviews.llvm.org/D65019#1594289>, @efriedma wrote:

> I don't like introducing magic calling convention rules for a non-intrinsic function with a specific name; we should model this more explicitly somehow.  Probably the simplest thing to do would be to introduce an ARM intrinsic, lower it to a pseudo-instruction, and expand it late (in ExpandPostRAPseudos or something like that).


Thanks for the suggestions, will start work on it.. I also realized this solution may have other issues that @t.p.northover kindly pointed out in another code review that I accidentally creates (https://reviews.llvm.org/D65037) for the same change.


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https://reviews.llvm.org/D65019