Lunderberg commented on code in PR #13936:
URL: https://github.com/apache/tvm/pull/13936#discussion_r1124829916
##########
src/arith/rewrite_simplify.cc:
##########
@@ -473,6 +487,9 @@ PrimExpr RewriteSimplifier::Impl::VisitExpr_(const SubNode*
op) {
floordiv(x - y, c1) * c3 - x * c2, (0 - floormod(x - y, c1) - y) * c2,
c1.Eval()->value != 0 && c3.Eval()->value == c1.Eval()->value *
c2.Eval()->value);
+ TVM_TRY_RECURSIVE_REWRITE(floordiv(x + 1, 2) - floormod(x, 2), floordiv(x,
2));
+ TVM_TRY_RECURSIVE_REWRITE(floordiv(x, 2) - floormod(x - 1, 2), floordiv(x
- 1, 2));
Review Comment:
Updated here as well. The related rule on line 490 with `floordiv(x + 1,2)`
is kept, because there isn't an equivalent change to the argument of `floordiv`.
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