spectrometerHBH commented on a change in pull request #9699:
URL: https://github.com/apache/tvm/pull/9699#discussion_r772843563
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File path: src/arith/iter_affine_map.cc
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@@ -160,13 +160,22 @@ class IterMarkSplitCollector {
}
};
+/*! \brief Record form of IterMark(x, extent) + offset */
+struct IterMarkWithOffset {
Review comment:
Is it necessary to introduce offset, since IterMark can contain an
IterSumExpr, and IterSumExpr can already represent iter + base? Maybe you can
consider utilizing this.
For example, `i*8 + j*2 + k` with `1 <= j * 2 + k <= 9, i <= 10`.
The flattened form is `i*8 + j*2 + k`.
The structured form is `i*8 + (j*2 + k - 1) + 1`
The iter mark contains the structured form and extent 80. We can read from
the structured form that the offset it 1.
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