[PATCH] D91857: [ARM] Remove dead mov's in preheader of tail predicated loops

[Sam Parker via Phabricator via llvm-commits]

samparker added inline comments.


================
Comment at: llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp:802
+      Ignore.insert(VCTPs.begin(), VCTPs.end());
+      if (TryRemove(Def, RDA, ElementChain, Ignore)) {
+        ToRemove.insert(ElementChain.begin(), ElementChain.end());
----------------
TryRemove is, relatively, robust :) I think you should just be able to pass ToRemove in place of ElementChain here, though I can't immediately remember why that isn't the case for the loop above.


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  https://reviews.llvm.org/D91857/new/

https://reviews.llvm.org/D91857