[llvm] [CHERI] Refine LoopIdiomRecognize handling of non-integral pointers. (PR #189402)

[Nikita Popov via llvm-commits]

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@@ -471,11 +471,15 @@ LoopIdiomRecognize::isLegalStore(StoreInst *SI) {
   Value *StoredVal = SI->getValueOperand();
   Value *StorePtr = SI->getPointerOperand();
 
-  // Don't convert stores of non-integral pointer types to memsets (which stores
-  // integers).
-  if (DL->isNonIntegralPointerType(StoredVal->getType()->getScalarType()))
+  if (DL->hasUnstableRepresentation(StoredVal->getType()->getScalarType()))
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nikic wrote:

```suggestion
  if (DL->hasUnstableRepresentation(StoredVal->getType()))
```
Already happens in the method.

https://github.com/llvm/llvm-project/pull/189402