[PATCH] D111082: [InstCombine] fold fake vector extract to shift+trunc

[Dave Green via Phabricator via llvm-commits]

dmgreen added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp:204
+    if (IsBigEndian)
+      ExtIndexC = NumElts.getKnownMinValue() - 1 - ExtIndexC;
+    unsigned ShiftAmountC = ExtIndexC * DestTy->getPrimitiveSizeInBits();
----------------
Does this need to check for scalable vectors nowadays?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D111082/new/

https://reviews.llvm.org/D111082