[PATCH] D68530: [AArch64] Make combining of callee-save and local stack adjustment optional

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

My understanding is that D18619 <https://reviews.llvm.org/D18619> was an optimisation, and that optimisation increases codesize in order to decrease micro-ops and improve scheduling?

If so then I don't think that anyone should be relying on it, exactly. Under minsize it should be fine to just not do the optimisation. It sounds like a fairly limited gain to me, increasing instruction count to gain on micro ops and scheduling, so the codesize benefit should be bigger win.


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68530/new/

https://reviews.llvm.org/D68530