[PATCH] D53190: ARM: avoid infinite combining loop

[Sam Parker via Phabricator via llvm-commits]

samparker added a comment.

My point was that, even though this extra work and as you mentioned in the comments, the test case isn't generating optimum code. We could introduce a subs node to remove the unnecessary cmp, making the sub opaque and improving codegen. Unless there's a reason why we couldn't do this?


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  rL LLVM

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  https://reviews.llvm.org/D53190/new/

https://reviews.llvm.org/D53190