[PATCH] D86074: [ARM][MVE] Tail-predication: check get.active.lane.mask's TC value

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added inline comments.


================
Comment at: llvm/lib/Target/ARM/MVETailPredication.cpp:624
+    for (auto &I : *BB) {
+      if (I.getOpcode() != Instruction::Add || &I != BTC)
+        continue;
----------------
efriedma wrote:
> Why are we searching the basic block here, instead of just using `dyn_cast<Instruction>(BTC)`?
There was a use for this in the previous version of this patch, to reuse some IR, but it's not necessary anymore in this version, so has been removed.


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  https://reviews.llvm.org/D86074/new/

https://reviews.llvm.org/D86074