tqchen commented on a change in pull request #4684: [Arith] add ShapeVar
representing non-neg valued variable in a tensor shape
URL: https://github.com/apache/incubator-tvm/pull/4684#discussion_r365928309
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File path: src/arithmetic/int_set.cc
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@@ -529,6 +554,22 @@ class IntervalSetEvaluator :
return Combine<T>(analyzer_, a, b);
}
+ template<typename T>
+ inline IntervalSet VisitDivExpr_(const T* op) {
+ IntervalSet a = this->Eval(op->a);
+ IntervalSet b = this->Eval(op->b);
+ if ((MatchPoint(a, op->a) && (MatchPoint(b, op->b) || SelfBoundedVar(b,
op->b)))
+ || (SelfBoundedVar(a, op->a) && SelfBoundedVar(b, op->b))) {
+ // e.g.,
Review comment:
i think this can be fixed by having shape_var return single_pt
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