[PATCH] D136793: [AArch64][GlobalISel] Add some minor post-selection optimizations.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/Target/AArch64/GISel/AArch64PostSelectOptimize.cpp:108
+
+  if (!Src.isVirtual() || !Dst.isVirtual())
+    return false;
----------------
aemerson wrote:
> paquette wrote:
> > `isPhysical`?
> Registers can be either physical, virtual or stack slots apparently, so it's better to use `isVirtual()`.
I'm pretty sure the stack slot case only happens transiently in regalloc 


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  https://reviews.llvm.org/D136793/new/

https://reviews.llvm.org/D136793