yzh119 commented on code in PR #14161:
URL: https://github.com/apache/tvm/pull/14161#discussion_r1122699775
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src/tir/schedule/primitive/cache_read_write.cc:
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@@ -1297,6 +1603,317 @@ StmtSRef CacheWrite(ScheduleState self, const StmtSRef&
block_sref, int write_bu
return result_block_sref;
}
+/*! \brief A visitor that collects variables appeared in expressions, stored
in `touched` field.*/
+class VarCollector : public ExprVisitor {
Review Comment:
Thanks, I'll use `UndefinedVars` instead.
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