Visible to Intel only — GUID: GUID-15D09574-7A47-473A-B1C1-4D385239D604
Visible to Intel only — GUID: GUID-15D09574-7A47-473A-B1C1-4D385239D604
DPCT1050
Message
The template argument of the <type> could not be deduced. You need to update this code.
Detailed Help
This warning is generated when the template argument could not be deduced by the Intel® DPC++ Compatibility Tool because the variable of this type was not used directly in the code. Intel® DPC++ Compatibility Tool inserts “dpct_placeholder”, instead of type, in such cases.
Suggestions to Fix
Replace the “dpct_placeholder” with the real argument.
For example, this original CUDA* code:
__global__ void kernel(const cudaTextureObject_t texObj) {}
void foo() {
float4 *d_data42;
cudaArray_t a42;
cudaMalloc(&d_data42, sizeof(float4) * 32 * 32);
cudaChannelFormatDesc desc42 = cudaCreateChannelDesc(32, 32, 32, 32, cudaChannelFormatKindFloat);
cudaMallocArray(&a42, &desc42, 32, 32);
cudaMemcpyToArray(a42, 0, 0, d_data42, 32 * 32 * sizeof(float4), cudaMemcpyDeviceToDevice);
cudaTextureObject_t tex42;
cudaResourceDesc res42;
cudaTextureDesc texDesc42;
res42.resType = cudaResourceTypeArray;
res42.res.array.array = a42;
cudaCreateTextureObject(&tex42, &res42, &texDesc42, NULL);
kernel<<<1, 1>>>(tex42);
}
results in the following migrated SYCL* code:
/*
DPCT1050:1: The template argument of the image_accessor_ext could not be
deduced. You need to update this code.
*/
void kernel(const dpct::image_accessor_ext<
dpct_placeholder /*Fix the type manually*/, 1>
texObj) {}
void foo() {
dpct::device_ext &dev_ct1 = dpct::get_current_device();
sycl::queue &q_ct1 = dev_ct1.default_queue();
sycl::float4 *d_data42;
dpct::image_matrix_p a42;
d_data42 = (sycl::float4 *)sycl::malloc_device(sizeof(sycl::float4) * 32 * 32,
q_ct1);
dpct::image_channel desc42 =
dpct::image_channel(32, 32, 32, 32, dpct::image_channel_data_type::fp);
a42 = new dpct::image_matrix(desc42, sycl::range<2>(32, 32));
dpct::dpct_memcpy(a42->to_pitched_data(), sycl::id<3>(0, 0, 0),
dpct::pitched_data(d_data42, 32 * 32 * sizeof(sycl::float4),
32 * 32 * sizeof(sycl::float4), 1),
sycl::id<3>(0, 0, 0),
sycl::range<3>(32 * 32 * sizeof(sycl::float4), 1, 1));
dpct::image_wrapper_base_p tex42;
dpct::image_data res42;
dpct::sampling_info texDesc42;
res42.set_data(a42);
tex42 = dpct::create_image_wrapper(res42, texDesc42);
/*
DPCT1050:0: The template argument of the image_accessor_ext could not be
deduced. You need to update this code.
*/
q_ct1.submit([&](sycl::handler &cgh) {
auto tex42_acc = static_cast<dpct::image_wrapper<
dpct_placeholder /*Fix the type manually*/, 1> *>(tex42)
->get_access(cgh);
auto tex42_smpl = tex42->get_sampler();
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) {
kernel(dpct::image_accessor_ext<
dpct_placeholder /*Fix the type manually*/, 1>(tex42_smpl,
tex42_acc));
});
});
}
which is rewritten to:
void kernel(const dpct::image_accessor_ext<sycl::float4, 2> texObj) {}
void foo() {
dpct::device_ext &dev_ct1 = dpct::get_current_device();
sycl::queue &q_ct1 = dev_ct1.default_queue();
sycl::float4 *d_data42;
dpct::image_matrix_p a42;
d_data42 = (sycl::float4 *)sycl::malloc_device(sizeof(sycl::float4) * 32 * 32,
q_ct1);
dpct::image_channel desc42 =
dpct::image_channel(32, 32, 32, 32, dpct::image_channel_data_type::fp);
a42 = new dpct::image_matrix(desc42, sycl::range<2>(32, 32));
dpct::dpct_memcpy(a42->to_pitched_data(), sycl::id<3>(0, 0, 0),
dpct::pitched_data(d_data42, 32 * 32 * sizeof(sycl::float4),
32 * 32 * sizeof(sycl::float4), 1),
sycl::id<3>(0, 0, 0),
sycl::range<3>(32 * 32 * sizeof(sycl::float4), 1, 1));
dpct::image_wrapper_base_p tex42;
dpct::image_data res42;
dpct::sampling_info texDesc42;
res42.set_data(a42);
tex42 = dpct::create_image_wrapper(res42, texDesc42);
q_ct1.submit([&](sycl::handler &cgh) {
auto tex42_acc =
static_cast<dpct::image_wrapper<sycl::float4, 2> *>(tex42)->get_access(
cgh);
auto tex42_smpl = tex42->get_sampler();
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) {
kernel(
dpct::image_accessor_ext<sycl::float4, 2>(tex42_smpl, tex42_acc));
});
});
}