kevinthesun commented on a change in pull request #5429:
URL: https://github.com/apache/incubator-tvm/pull/5429#discussion_r416046045



##########
File path: src/relay/op/tensor/transform.cc
##########
@@ -650,13 +670,59 @@ Array<te::Tensor> ReshapeCompute(const Attrs& attrs,
   return { topi::reshape(inputs[0], newshape) };
 }
 
+double ToScalar(const runtime::NDArray& array, int i = 0) {
+  if (array->dtype.code == kDLInt) {
+    if (array->dtype.bits == 8) {
+      return reinterpret_cast<int8_t*>(array->data)[i];
+    } else if (array->dtype.bits == 16) {
+      return reinterpret_cast<int16_t*>(array->data)[i];
+    } else if (array->dtype.bits == 32) {
+      return reinterpret_cast<int32_t*>(array->data)[i];
+    } else if (array->dtype.bits == 64) {
+      return reinterpret_cast<int64_t*>(array->data)[i];
+    }
+  } else if (array->dtype.code == kDLUInt) {
+    if (array->dtype.bits == 8) {
+      return reinterpret_cast<uint8_t*>(array->data)[i];
+    } else if (array->dtype.bits == 16) {
+      return reinterpret_cast<uint16_t*>(array->data)[i];
+    } else if (array->dtype.bits == 32) {
+      return reinterpret_cast<uint32_t*>(array->data)[i];
+    } else if (array->dtype.bits == 64) {
+      return reinterpret_cast<uint64_t*>(array->data)[i];
+    }
+  } else if (array->dtype.code == kDLFloat) {
+#if (__ARM_FP16_FORMAT_IEEE == 1)
+    if (array->dtype.bits == 16) {
+      return reinterpret_cast<__fp16*>(array->data)[i];
+    }
+#endif
+    if (array->dtype.bits == 32) {
+      return reinterpret_cast<float*>(array->data)[i];
+    } else if (array->dtype.bits == 64) {
+      return reinterpret_cast<double*>(array->data)[i];
+    }
+  }
+  LOG(FATAL) << "Unknown data type: " << 
tvm::runtime::DLDataType2String(array->dtype);
+  // make compiler happy
+  return -std::numeric_limits<double>::infinity();
+}
+
 Expr MakeReshape(Expr data,
-                 Array<Integer> newshape) {
+                 Expr newshape) {
   auto attrs = make_object<ReshapeAttrs>();
-  attrs->newshape = std::move(newshape);
+
+  if (const ConstantNode *c = newshape.as<ConstantNode>()) {

Review comment:
       Also set attrs->newshape when newshape is symbolic?




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