wrongtest commented on a change in pull request #10582:
URL: https://github.com/apache/tvm/pull/10582#discussion_r825562693
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File path: src/target/llvm/codegen_llvm.h
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@@ -439,7 +439,7 @@ class CodeGenLLVM : public ExprFunctor<llvm::Value*(const
PrimExpr&)>,
// deep comparison of PrimExpr
ExprDeepEqual deep_equal_;
// binding of let variables. Enables duplicate var defs that map to same
value
- std::unordered_map<Var, const LetNode*, ObjectPtrHash, ObjectPtrEqual>
let_binding_;
+ std::unordered_map<Var, PrimExpr, ObjectPtrHash, ObjectPtrEqual>
let_binding_;
Review comment:
A local expression can be visited (eg, a simplify res) and some pointer
are recorded. But when the local scope ends the backing object is expired.
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