junrushao1994 commented on pull request #5585:
URL: https://github.com/apache/incubator-tvm/pull/5585#issuecomment-631147088
Given the fact that `dmlc::LogMessageFatal` causes significant amount of
increase in stack size, we investigated into dmlc-core. The initial results
shows that we can directly reduce (upper bound of) the stack frame size from
4720 to 560, if we change `dmlc::LogMessageFatal` to
`std::unique_ptr<dmlc::LogMessageFatal>`.
```
# master
virtual tvm::relay::Expr
tvm::relay::CommonSubexprEliminator::VisitExpr_(const tvm::relay::CallNode*)
1072 static
# before patch dmlc-core
virtual tvm::relay::Expr
tvm::relay::CommonSubexprEliminator::VisitExpr_(const tvm::relay::CallNode*)
4720 dynamic,bounded
# after patch dmlc-core
virtual tvm::relay::Expr
tvm::relay::CommonSubexprEliminator::VisitExpr_(const tvm::relay::CallNode*)
560 dynamic,bounded
```
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