[PATCH] D123394: [CodeGen] Late cleanup of redundant address/immediate definitions.

[Jonas Paulsson via Phabricator via llvm-commits]

jonpa added a comment.

In D123394#3786525 <https://reviews.llvm.org/D123394#3786525>, @asb wrote:

> There's a cost in terms of complicating the compiler and adding a new pass, but there's also cost in having generated code that's known to be substandard. Every single time someone invests time in analysing compiler output, it will show up when looking for redundant code and people are likely to waste time figuring out if it's measureable, or perhaps if it's a symptom of some wider codegen problem.

Thanks for mentioning this important aspect which I agree very much with, only to fail to put it down into words here.


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https://reviews.llvm.org/D123394