[llvm] [LICM] Allow hoisting of InsertElementInst's past non-hoistable InsertElementInsts (PR #200532)

[Nikita Popov via llvm-commits]

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@@ -1058,6 +1074,82 @@ bool llvm::hoistRegion(DomTreeNode *N, AAResults *AA, LoopInfo *LI,
   return Changed;
 }
 
+static InsertElementInst *canBypassInsert(InsertElementInst *CurrIns,
+                                          Loop *CurLoop,
+                                          SmallSet<uint64_t, 4> &SeenIndices) {
+  // Must have constant insertion lane
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nikic wrote:

```suggestion
  // Must have constant insertion lane.
```
etc

https://github.com/llvm/llvm-project/pull/200532