[llvm] [SandboxIR] sandboxir::Use operands (part 1) and uses (part 2) (PR #98251)
Arthur Eubanks via llvm-commits
llvm-commits at lists.llvm.org
Wed Jul 10 13:53:52 PDT 2024
================
@@ -71,6 +71,98 @@ namespace sandboxir {
class Function;
class Context;
class Instruction;
+class User;
+class Value;
+
+/// Represents a Def-use/Use-def edge in SandboxIR.
+/// NOTE: Unlike llvm::Use, this is not an integral part of the use-def chains.
+/// It is also not uniqued and is currently passed by value, so you can have
+/// more than one sandboxir::Use objects for the same use-def edge.
+class Use {
+ llvm::Use *LLVMUse;
+ User *User;
+ Context *Ctx;
+
+ /// Don't allow the user to create a sandboxir::Use directly.
+ Use(llvm::Use *LLVMUse, class User *User, Context &Ctx)
+ : LLVMUse(LLVMUse), User(User), Ctx(&Ctx) {}
+ Use() : LLVMUse(nullptr), Ctx(nullptr) {}
+
+ friend class Value; // For constructor
+ friend class User; // For constructor
+ friend class OperandUseIterator; // For constructor
+ friend class UserUseIterator; // For accessing members
+
+public:
+ operator Value *() const { return get(); }
----------------
aeubanks wrote:
implicit conversions aren't great, do we need this (and all the other ones)?
https://github.com/llvm/llvm-project/pull/98251
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