DPCT1101

Intel® DPC++ Compatibility Tool Developer Guide and Reference

Download PDF

ID 768918

Date 3/31/2023

Version

Public

A newer version of this document is available. Customers should click here to go to the newest version.

Visible to Intel only — GUID: GUID-64117CB8-A6BB-4256-922D-F4F8506A1962

View Details

DPCT1101

Message

<expression text> expression was replaced with a value. Modify the code to use the original expression, provided in comments, if it is correct.

Detailed Help

Identities, including constant variable names, types, and macros, used in the migrated SYCL* code are replaced with their value since they may not be available in the code scope. User can replace the value with the original expression listed in the comment manually after confirming that the identities are available in the code scope.

Suggestions to Fix

Use a macro or const variable to replace the value.

For example, this original CUDA* code:

  __global__ void f() {
    const int x = 2;
    __shared__ int fold[x];
  }

  int main() {
    f<<<1, 1>>>();
    return 0;
  }

results in the following migrated SYCL code:

  void f(int *fold) {
    const int x = 2;
  }

  int main() {
    dpct::get_default_queue().submit([&](sycl::handler &cgh) {
      sycl::local_accessor<int, 1> fold_acc_ct1(sycl::range<1>(2 /*x*/), cgh);

      cgh.parallel_for(
          sycl::nd_range<3>(sycl::range<3>(1, 1, 1), sycl::range<3>(1, 1, 1)),
          [=](sycl::nd_item<3> item_ct1) {
            f(fold_acc_ct1.get_pointer());
          });
    });
    return 0;
  }

which is rewritten to:

  const int x = 2;
  void f(int *fold) {

  }

  int main() {
    dpct::get_default_queue().submit([&](sycl::handler &cgh) {
      sycl::local_accessor<int, 1> fold_acc_ct1(sycl::range<1>(x), cgh);

      cgh.parallel_for(
          sycl::nd_range<3>(sycl::range<3>(1, 1, 1), sycl::range<3>(1, 1, 1)),
          [=](sycl::nd_item<3> item_ct1) {
            f(fold_acc_ct1.get_pointer());
          });
    });
    return 0;
  }

Select Your Language

Using Intel.com Search

Quick Links

Recent Searches

Advanced Search

Only search in

Intel® DPC++ Compatibility Tool Developer Guide and Reference

DPCT1101

Message

Detailed Help

Suggestions to Fix