comaniac commented on a change in pull request #8961:
URL: https://github.com/apache/tvm/pull/8961#discussion_r704654334
##########
File path: tests/python/unittest/test_arith_rewrite_simplify.py
##########
@@ -14,6 +14,8 @@
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
+import py
Review comment:
Not used?
##########
File path: src/arith/rewrite_simplify.cc
##########
@@ -474,6 +474,8 @@ PrimExpr RewriteSimplifier::Impl::VisitExpr_(const DivNode*
op) {
if ((div(ramp(b1, c1, lanes), broadcast(c2, lanes))).Match(ret)) {
int64_t c1val = c1.Eval()->value;
int64_t c2val = c2.Eval()->value;
+ // If divisor is equal to zero
+ ICHECK(c2val != 0) << "division by zero";
Review comment:
nit: The check itself is clear enough so we probably don't need the
comment.
```suggestion
ICHECK(c2val != 0) << "division by zero";
```
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