[llvm] [IR] PossiblyExactOperator -> PossiblyExactInst (NFC) (PR #72501)

[Nikita Popov via llvm-commits]

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@@ -706,6 +706,26 @@ class PossiblyNonNegInst : public CastInst {
   }
 };
 
+/// A div or shr instruction, which can be marked as "exact",
+/// indicating that no bits are destroyed.
+class PossiblyExactInst : public BinaryOperator {
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nikic wrote:

This does make me wonder if I should just keep the old PossiblyExactOperator name and only do the hierarchy change. In that case "Operator" would now refer to "BinaryOperator" rather than "Instruction or ConstExpr". I've always found the overloaded use of this term confusing.

https://github.com/llvm/llvm-project/pull/72501