[llvm] [LV] Support float and pointer conditional scalar assignments (PR #184101)

[Benjamin Maxwell via llvm-commits]

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@@ -503,7 +502,12 @@ bool RecurrenceDescriptor::AddReductionVar(
   // to evaluate the reduction in the narrower width.
   // Check the scalar type to handle both scalar and vector types.
   Type *ScalarTy = RecurrenceType->getScalarType();
-  if (ScalarTy->isFloatingPointTy()) {
+  if (Kind == RecurKind::FindLast) {
+    // FindLast supports all types can otherwise be used in recurrences.
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MacDue wrote:

I think there's a typo here. Maybe reword as:
```suggestion
    // FindLast supports all types all scalar types.
```

https://github.com/llvm/llvm-project/pull/184101