Lunderberg opened a new pull request, #17226: URL: https://github.com/apache/tvm/pull/17226
Prior to this commit, the `tvm.relax.dpl.rewrite_bindings` utility would segfault if its input contained a `DataflowBlock` whose first binding was a `MatchCast`. The root cause is use of an unintialized `const VarNode* cur_user_;` when collecting the variable usage. This variable is only initialized for `VarBinding` nodes, and may be used uninitialized if a `MatchCast` node is encountered before the first `VarBinding`. This uninitialized value is later dereferenced during while pattern-matching, causing a segfault. This commit provides a default value of `nullptr` for `MatcherUseDefAnalysis::cur_user_`, preventing the segfault. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
