← → keys · t: theme
reference build
{
"command": "g++ -O2 -std=c++17 -Iexamples/fuzz/../common examples/fuzz/fuzz_ref.cpp -o build/reference",
"returncode": 0,
"duration_s": 0.578958,
"stdout": "",
"stderr": "",
"cwd": "."
}migrate ok
migrated 1 CUDA file(s) -> 1 file(s); 4 DPCT warning(s) (DPCT1009x1, DPCT1010x1, DPCT1024x2)
Model text · iteration 1
No text this turn; the model went straight to tool calls.
Tool input
{}
Limitations the tool reported
c2s output compiles only with the dpct helper headers on the include path (<c2s install>/include).
Migration warnings say what c2s could not translate; they do not prove the rest is correct. Run compile + verify.
Evidence
evidence JSON (4,576 chars) · source hash 5a25d8f34f8c89d4
{
"run": {
"command": "/opt/syclomatic/bin/c2s --in-root=examples/fuzz --out-root=migrated --cuda-include-path=/opt/cuda-headers/targets/x86_64-linux/include --extra-arg=-Iexamples/common examples/fuzz/fuzz.cu",
"returncode": 0,
"duration_s": 2.15382,
"stdout": "NOTE: Could not auto-detect compilation database for file 'fuzz.cu' in 'examples/fuzz' or any parent directory.\nParsing: examples/fuzz/fuzz.cu\nAnalyzing: examples/fuzz/fuzz.cu\nMigrating: examples/fuzz/fuzz.cu\nProcessed 1 file(s) in -in-root folder \"examples/fuzz\"\n\nSee Diagnostics Reference to resolve warnings and complete the migration:\nhttps://oneapi-src.github.io/SYCLomatic/dev_guide/reference/diagnostics-reference.html\n",
"stderr": "examples/fuzz/fuzz.cu:10:9: warning: DPCT1009:0: SYCL reports errors using exceptions and does not use error codes. Please replace the \"get_error_string_dummy(...)\" with a real error-handling function.\n 10 | #define CUDA_CHECK(call) \\\n | ^\nexamples/fuzz/fuzz.cu:51:14: warning: DPCT1024:1: The original code returned the error code that was further consumed by the program logic. This original code was replaced with 0. You may need to rewrite the program logic consuming the error code.\n 51 | CUDA_CHECK(cudaEventRecord(start));\n | ^\nexamples/fuzz/fuzz.cu:53:14: warning: DPCT1010:2: SYCL uses exceptions to report errors and does not use the error codes. The cudaGetLastError function call was replaced with 0. You need to rewrite this code.\n 53 | CUDA_CHECK(cudaGetLastError());\n | ^\nexamples/fuzz/fuzz.cu:54:14: warning: DPCT1024:3: The original code returned the error code that was further consumed by the program logic. This original code was replaced with 0. You may need to rewrite the program logic consuming the error code.\n 54 | CUDA_CHECK(cudaEventRecord(stop));\n | ^\n\n"
},
"input_files": [
"examples/fuzz/fuzz.cu"
],
"in_root": "examples/fuzz",
"out_dir": "migrated",
"migrated_files": [
"fuzz.dp.cpp"
],
"warnings": [
{
"code": "DPCT1009",
"id": 0,
"message": "SYCL reports errors using exceptions and does not use error codes. Please replace the \"get_error_string_dummy(...)\" with a real error-handling function.",
"file": "examples/fuzz/fuzz.cu",
"line": 10,
"column": 9,
"migrated_file": "fuzz.dp.cpp",
"migrated_line": 13
},
{
"code": "DPCT1024",
"id": 1,
"message": "The original code returned the error code that was further consumed by the program logic. This original code was replaced with 0. You may need to rewrite the program logic consuming the error code.",
"file": "examples/fuzz/fuzz.cu",
"line": 51,
"column": 14,
"migrated_file": "fuzz.dp.cpp",
"migrated_line": 60
},
{
"code": "DPCT1010",
"id": 2,
"message": "SYCL uses exceptions to report errors and does not use the error codes. The cudaGetLastError function call was replaced with 0. You need to rewrite this code.",
"file": "examples/fuzz/fuzz.cu",
"line": 53,
"column": 14,
"migrated_file": "fuzz.dp.cpp",
"migrated_line": 72
},
{
"code": "DPCT1024",
"id": 3,
"message": "The original code returned the error code that was further consumed by the program logic. This original code was replaced with 0. You may need to rewrite the program logic consuming the error code.",
"file": "examples/fuzz/fuzz.cu",
"line": 54,
"column": 14,
"migrated_file": "fuzz.dp.cpp",
"migrated_line": 78
}
],
"warning_counts": {
"DPCT1009": 1,
"DPCT1024": 2,
"DPCT1010": 1
},
"errors": []
}list_files ok
3 file(s)
Model text · iteration 1
No text this turn; the model went straight to tool calls.
Tool input
{}
Evidence
evidence JSON (147 chars) · source hash 5a25d8f34f8c89d4
{
"files": [
"build/reference",
"migrated/MainSourceFiles.yaml",
"migrated/fuzz.dp.cpp"
]
}read_file ok
fuzz.dp.cpp: 4333 chars
Model text · iteration 2
No text this turn; the model went straight to tool calls.
Tool input
{
"path": "migrated/fuzz.dp.cpp"
}
Evidence
evidence JSON (4,805 chars) · source hash 5a25d8f34f8c89d4
{
"path": "migrated/fuzz.dp.cpp",
"content": "// CUDA version of the tanh soft-clip fuzz (the code to be ported).\n// Usage: fuzz <in.wav> <out.wav> [drive=8] [gain=0.8]\n#define DPCT_PROFILING_ENABLED\n#include <sycl/sycl.hpp>\n#include <dpct/dpct.hpp>\n#include <cmath>\n#include <cstdio>\n#include <cstdlib>\n\n#include \"wav.hpp\"\n\n/*\nDPCT1009:0: SYCL reports errors using exceptions and does not use error codes.\nPlease replace the \"get_error_string_dummy(...)\" with a real error-handling\nfunction.\n*/\n#define CUDA_CHECK(call) \\\n do { \\\n dpct::err0 err_ = (call); \\\n \\\n } while (0)\n\nvoid fuzz_kernel(const float* __restrict__ in, float* __restrict__ out, int n,\n float drive, float norm) {\n auto item_ct1 = sycl::ext::oneapi::this_work_item::get_nd_item<3>();\n int i = item_ct1.get_group(2) * item_ct1.get_local_range(2) +\n item_ct1.get_local_id(2);\n if (i < n) out[i] = norm * sycl::tanh(drive * in[i]);\n}\n\nint main(int argc, char **argv) try {\n dpct::device_ext &dev_ct1 = dpct::get_current_device();\n sycl::queue &q_ct1 = dev_ct1.in_order_queue();\n if (argc < 3) {\n std::fprintf(stderr, \"usage: %s in.wav out.wav [drive] [gain]\\n\", argv[0]);\n return 2;\n }\n const float drive = argc > 3 ? std::strtof(argv[3], nullptr) : 8.0f;\n const float gain = argc > 4 ? std::strtof(argv[4], nullptr) : 0.8f;\n WavData wav;\n if (!wav_read(argv[1], wav)) {\n std::fprintf(stderr, \"cannot read %s\\n\", argv[1]);\n return 1;\n }\n const int n = static_cast<int>(wav.samples.size());\n const float norm = gain / std::tanh(drive);\n\n float *d_in = nullptr, *d_out = nullptr;\n CUDA_CHECK(DPCT_CHECK_ERROR(d_in = sycl::malloc_device<float>(n, q_ct1)));\n CUDA_CHECK(DPCT_CHECK_ERROR(d_out = sycl::malloc_device<float>(n, q_ct1)));\n CUDA_CHECK(DPCT_CHECK_ERROR(\n q_ct1.memcpy(d_in, wav.samples.data(), n * sizeof(float)).wait()));\n\n dpct::event_ptr start, stop;\n CUDA_CHECK(DPCT_CHECK_ERROR(start = new sycl::event()));\n CUDA_CHECK(DPCT_CHECK_ERROR(stop = new sycl::event()));\n const int block = 256;\n const int grid = (n + block - 1) / block;\n /*\n DPCT1024:1: The original code returned the error code that was further\n consumed by the program logic. This original code was replaced with 0. You may\n need to rewrite the program logic consuming the error code.\n */\n CUDA_CHECK(DPCT_CHECK_ERROR(dpct::sync_barrier(start)));\n q_ct1.parallel_for(sycl::nd_range<3>(sycl::range<3>(1, 1, grid) *\n sycl::range<3>(1, 1, block),\n sycl::range<3>(1, 1, block)),\n [=](sycl::nd_item<3> item_ct1) {\n fuzz_kernel(d_in, d_out, n, drive, norm);\n });\n /*\n DPCT1010:2: SYCL uses exceptions to report errors and does not use the error\n codes. The cudaGetLastError function call was replaced with 0. You need to\n rewrite this code.\n */\n CUDA_CHECK(0);\n /*\n DPCT1024:3: The original code returned the error code that was further\n consumed by the program logic. This original code was replaced with 0. You may\n need to rewrite the program logic consuming the error code.\n */\n CUDA_CHECK(DPCT_CHECK_ERROR(dpct::sync_barrier(stop)));\n CUDA_CHECK(DPCT_CHECK_ERROR(stop->wait_and_throw()));\n float ms = 0.f;\n CUDA_CHECK(DPCT_CHECK_ERROR(\n ms = (stop->get_profiling_info<\n sycl::info::event_profiling::command_end>() -\n start->get_profiling_info<\n sycl::info::event_profiling::command_start>()) /\n 1000000.0f));\n std::printf(\"kernel_ms=%f\\n\", ms);\n\n std::vector<float> out(n);\n CUDA_CHECK(DPCT_CHECK_ERROR(\n q_ct1.memcpy(out.data(), d_out, n * sizeof(float)).wait()));\n CUDA_CHECK(DPCT_CHECK_ERROR(dpct::dpct_free(d_in, q_ct1)));\n CUDA_CHECK(DPCT_CHECK_ERROR(dpct::dpct_free(d_out, q_ct1)));\n if (!wav_write_f32(argv[2], out.data(), out.size(), wav.channels, wav.sample_rate)) return 1;\n return 0;\n}\ncatch (sycl::exception const &exc) {\n std::cerr << exc.what() << \"Exception caught at file:\" << __FILE__\n << \", line:\" << __LINE__ << std::endl;\n std::exit(1);\n}\n"
}write_file ok
wrote migrated/fuzz.dp.cpp (1778 chars)
Model text · iteration 3
No text this turn; the model went straight to tool calls.
Tool input
{
"path": "migrated/fuzz.dp.cpp",
"content": "<54 lines; diff below>"
}
Diff vs previous version in this trace · +25 −76
--- a/migrated/fuzz.dp.cpp+++ b/migrated/fuzz.dp.cpp@@ -1,36 +1,15 @@-// CUDA version of the tanh soft-clip fuzz (the code to be ported).+// SYCL version of the tanh soft-clip fuzz. // Usage: fuzz <in.wav> <out.wav> [drive=8] [gain=0.8]-#define DPCT_PROFILING_ENABLED #include <sycl/sycl.hpp>-#include <dpct/dpct.hpp> #include <cmath> #include <cstdio> #include <cstdlib>+#include <iostream>+#include <vector> #include "wav.hpp" -/*-DPCT1009:0: SYCL reports errors using exceptions and does not use error codes.-Please replace the "get_error_string_dummy(...)" with a real error-handling-function.-*/-#define CUDA_CHECK(call) \- do { \- dpct::err0 err_ = (call); \- \- } while (0)--void fuzz_kernel(const float* __restrict__ in, float* __restrict__ out, int n,- float drive, float norm) {- auto item_ct1 = sycl::ext::oneapi::this_work_item::get_nd_item<3>();- int i = item_ct1.get_group(2) * item_ct1.get_local_range(2) +- item_ct1.get_local_id(2);- if (i < n) out[i] = norm * sycl::tanh(drive * in[i]);-}- int main(int argc, char **argv) try {- dpct::device_ext &dev_ct1 = dpct::get_current_device();- sycl::queue &q_ct1 = dev_ct1.in_order_queue(); if (argc < 3) { std::fprintf(stderr, "usage: %s in.wav out.wav [drive] [gain]\n", argv[0]); return 2;@@ -42,64 +21,34 @@ std::fprintf(stderr, "cannot read %s\n", argv[1]); return 1; }- const int n = static_cast<int>(wav.samples.size());+ const size_t n = wav.samples.size(); const float norm = gain / std::tanh(drive); - float *d_in = nullptr, *d_out = nullptr;- CUDA_CHECK(DPCT_CHECK_ERROR(d_in = sycl::malloc_device<float>(n, q_ct1)));- CUDA_CHECK(DPCT_CHECK_ERROR(d_out = sycl::malloc_device<float>(n, q_ct1)));- CUDA_CHECK(DPCT_CHECK_ERROR(- q_ct1.memcpy(d_in, wav.samples.data(), n * sizeof(float)).wait()));+ sycl::queue q{sycl::property::queue::in_order{},+ sycl::property::queue::enable_profiling{}}; - dpct::event_ptr start, stop;- CUDA_CHECK(DPCT_CHECK_ERROR(start = new sycl::event()));- CUDA_CHECK(DPCT_CHECK_ERROR(stop = new sycl::event()));- const int block = 256;- const int grid = (n + block - 1) / block;- /*- DPCT1024:1: The original code returned the error code that was further- consumed by the program logic. This original code was replaced with 0. You may- need to rewrite the program logic consuming the error code.- */- CUDA_CHECK(DPCT_CHECK_ERROR(dpct::sync_barrier(start)));- q_ct1.parallel_for(sycl::nd_range<3>(sycl::range<3>(1, 1, grid) *- sycl::range<3>(1, 1, block),- sycl::range<3>(1, 1, block)),- [=](sycl::nd_item<3> item_ct1) {- fuzz_kernel(d_in, d_out, n, drive, norm);- });- /*- DPCT1010:2: SYCL uses exceptions to report errors and does not use the error- codes. The cudaGetLastError function call was replaced with 0. You need to- rewrite this code.- */- CUDA_CHECK(0);- /*- DPCT1024:3: The original code returned the error code that was further- consumed by the program logic. This original code was replaced with 0. You may- need to rewrite the program logic consuming the error code.- */- CUDA_CHECK(DPCT_CHECK_ERROR(dpct::sync_barrier(stop)));- CUDA_CHECK(DPCT_CHECK_ERROR(stop->wait_and_throw()));- float ms = 0.f;- CUDA_CHECK(DPCT_CHECK_ERROR(- ms = (stop->get_profiling_info<- sycl::info::event_profiling::command_end>() -- start->get_profiling_info<- sycl::info::event_profiling::command_start>()) /- 1000000.0f));+ float *d_in = sycl::malloc_device<float>(n, q);+ float *d_out = sycl::malloc_device<float>(n, q);+ q.memcpy(d_in, wav.samples.data(), n * sizeof(float)).wait();++ sycl::event ev = q.parallel_for(sycl::range<1>(n), [=](sycl::id<1> idx) {+ const size_t i = idx[0];+ d_out[i] = norm * sycl::tanh(drive * d_in[i]);+ });+ ev.wait_and_throw();+ const double ms =+ (ev.get_profiling_info<sycl::info::event_profiling::command_end>() -+ ev.get_profiling_info<sycl::info::event_profiling::command_start>()) /+ 1.0e6; std::printf("kernel_ms=%f\n", ms); std::vector<float> out(n);- CUDA_CHECK(DPCT_CHECK_ERROR(- q_ct1.memcpy(out.data(), d_out, n * sizeof(float)).wait()));- CUDA_CHECK(DPCT_CHECK_ERROR(dpct::dpct_free(d_in, q_ct1)));- CUDA_CHECK(DPCT_CHECK_ERROR(dpct::dpct_free(d_out, q_ct1)));+ q.memcpy(out.data(), d_out, n * sizeof(float)).wait();+ sycl::free(d_in, q);+ sycl::free(d_out, q); if (!wav_write_f32(argv[2], out.data(), out.size(), wav.channels, wav.sample_rate)) return 1; return 0;+} catch (sycl::exception const &e) {+ std::cerr << "SYCL exception: " << e.what() << std::endl;+ return 1; }-catch (sycl::exception const &exc) {- std::cerr << exc.what() << "Exception caught at file:" << __FILE__- << ", line:" << __LINE__ << std::endl;- std::exit(1);-}
full file as written
// SYCL version of the tanh soft-clip fuzz.
// Usage: fuzz <in.wav> <out.wav> [drive=8] [gain=0.8]
#include <sycl/sycl.hpp>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <vector>
#include "wav.hpp"
int main(int argc, char **argv) try {
if (argc < 3) {
std::fprintf(stderr, "usage: %s in.wav out.wav [drive] [gain]\n", argv[0]);
return 2;
}
const float drive = argc > 3 ? std::strtof(argv[3], nullptr) : 8.0f;
const float gain = argc > 4 ? std::strtof(argv[4], nullptr) : 0.8f;
WavData wav;
if (!wav_read(argv[1], wav)) {
std::fprintf(stderr, "cannot read %s\n", argv[1]);
return 1;
}
const size_t n = wav.samples.size();
const float norm = gain / std::tanh(drive);
sycl::queue q{sycl::property::queue::in_order{},
sycl::property::queue::enable_profiling{}};
float *d_in = sycl::malloc_device<float>(n, q);
float *d_out = sycl::malloc_device<float>(n, q);
q.memcpy(d_in, wav.samples.data(), n * sizeof(float)).wait();
sycl::event ev = q.parallel_for(sycl::range<1>(n), [=](sycl::id<1> idx) {
const size_t i = idx[0];
d_out[i] = norm * sycl::tanh(drive * d_in[i]);
});
ev.wait_and_throw();
const double ms =
(ev.get_profiling_info<sycl::info::event_profiling::command_end>() -
ev.get_profiling_info<sycl::info::event_profiling::command_start>()) /
1.0e6;
std::printf("kernel_ms=%f\n", ms);
std::vector<float> out(n);
q.memcpy(out.data(), d_out, n * sizeof(float)).wait();
sycl::free(d_in, q);
sycl::free(d_out, q);
if (!wav_write_f32(argv[2], out.data(), out.size(), wav.channels, wav.sample_rate)) return 1;
return 0;
} catch (sycl::exception const &e) {
std::cerr << "SYCL exception: " << e.what() << std::endl;
return 1;
}
Evidence
evidence JSON (56 chars) · source hash 28b603bda6b76357
{
"path": "migrated/fuzz.dp.cpp"
}compile fail
compile failed with 1 error(s) at migrated/fuzz.dp.cpp:27: no matching constructor for initialization of 'sycl::queue'
Model text · iteration 3
No text this turn; the model went straight to tool calls.
Tool input
{
"sources": [
"migrated/fuzz.dp.cpp"
],
"add_dpct_include": false
}
Limitations the tool reported
A successful compile says nothing about numerical correctness; run verify.
Evidence
evidence JSON (16,797 chars) · source hash 28b603bda6b76357
{
"run": {
"command": "/opt/dpcpp/bin/icpx -fsycl -O2 -Iexamples/common migrated/fuzz.dp.cpp -o build/candidate",
"returncode": 1,
"duration_s": 2.174809,
"stdout": "",
"stderr": "migrated/fuzz.dp.cpp:27:15: error: no matching constructor for initialization of 'sycl::queue'\n 27 | sycl::queue q{sycl::property::queue::in_order{},\n | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n 28 | sycl::property::queue::enable_profiling{}};\n | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:227:3: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const async_handler' (aka 'const std::function<void (sycl::exception_list)>') for 1st argument\n 227 | queue(const async_handler &AsyncHandler, const property_list &PropList = {})\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:296:3: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device_selector' for 1st argument\n 296 | queue(const device_selector &DeviceSelector,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:317:12: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device' for 1st argument\n 317 | explicit queue(const device &SyclDevice, const property_list &PropList = {})\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:309:3: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device_selector' for 1st argument\n 309 | queue(const device_selector &DeviceSelector,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:326:12: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device' for 1st argument\n 326 | explicit queue(const device &SyclDevice, const async_handler &AsyncHandler,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:337:3: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const context' for 1st argument\n 337 | queue(const context &SyclContext, const device_selector &DeviceSelector,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:359:3: note: candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const context' for 1st argument\n 359 | queue(const context &SyclContext, const device &SyclDevice,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:239:12: note: candidate template ignored: requirement 'std::is_invocable_r_v<int, sycl::property::queue::in_order &, const sycl::device &>' was not satisfied [with DeviceSelector = sycl::property::queue::in_order]\n 239 | explicit queue(const DeviceSelector &deviceSelector,\n | ^\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:252:12: note: candidate template ignored: requirement 'std::is_invocable_r_v<int, sycl::property::queue::in_order &, const sycl::device &>' was not satisfied [with DeviceSelector = sycl::property::queue::in_order]\n 252 | explicit queue(const DeviceSelector &deviceSelector,\n | ^\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:266:12: note: candidate template ignored: requirement 'std::is_invocable_r_v<int, sycl::property::queue::enable_profiling &, const sycl::device &>' was not satisfied [with DeviceSelector = sycl::property::queue::enable_profiling]\n 266 | explicit queue(const context &syclContext,\n | ^\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:219:12: note: candidate constructor not viable: allows at most single argument 'PropList', but 2 arguments were provided\n 219 | explicit queue(const property_list &PropList = {})\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:385:3: note: candidate constructor not viable: requires single argument 'RHS', but 2 arguments were provided\n 385 | queue(const queue &RHS) = default;\n | ^ ~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:387:3: note: candidate constructor not viable: requires single argument 'RHS', but 2 arguments were provided\n 387 | queue(queue &&RHS) = default;\n | ^ ~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:3639:3: note: candidate constructor not viable: requires single argument 'impl', but 2 arguments were provided\n 3639 | queue(std::shared_ptr<detail::queue_impl> impl) : impl(impl) {}\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:350:3: note: candidate constructor not viable: requires at least 3 arguments, but 2 were provided\n 350 | queue(const context &SyclContext, const device_selector &DeviceSelector,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n 351 | const async_handler &AsyncHandler, const property_list &PropList = {});\n | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:369:3: note: candidate constructor not viable: requires at least 3 arguments, but 2 were provided\n 369 | queue(const context &SyclContext, const device &SyclDevice,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n 370 | const async_handler &AsyncHandler, const property_list &PropList = {});\n | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp:282:12: note: candidate constructor template not viable: requires at least 3 arguments, but 2 were provided\n 282 | explicit queue(const context &syclContext,\n | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~\n 283 | const DeviceSelector &deviceSelector,\n | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n 284 | const async_handler &AsyncHandler,\n | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n 285 | const property_list &propList = {})\n | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n1 error generated.\n"
},
"output": "build/candidate",
"dpct_include_added": null,
"diagnostics": [
{
"file": "migrated/fuzz.dp.cpp",
"line": 27,
"column": 15,
"severity": "error",
"message": "no matching constructor for initialization of 'sycl::queue'",
"flag": null,
"snippet": " sycl::queue q{sycl::property::queue::in_order{},"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 227,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const async_handler' (aka 'const std::function<void (sycl::exception_list)>') for 1st argument",
"flag": null,
"snippet": " queue(const async_handler &AsyncHandler, const property_list &PropList = {})"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 296,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device_selector' for 1st argument",
"flag": null,
"snippet": " queue(const device_selector &DeviceSelector,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 317,
"column": 12,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device' for 1st argument",
"flag": null,
"snippet": " explicit queue(const device &SyclDevice, const property_list &PropList = {})"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 309,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device_selector' for 1st argument",
"flag": null,
"snippet": " queue(const device_selector &DeviceSelector,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 326,
"column": 12,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const device' for 1st argument",
"flag": null,
"snippet": " explicit queue(const device &SyclDevice, const async_handler &AsyncHandler,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 337,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const context' for 1st argument",
"flag": null,
"snippet": " queue(const context &SyclContext, const device_selector &DeviceSelector,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 359,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: no known conversion from 'sycl::property::queue::in_order' to 'const context' for 1st argument",
"flag": null,
"snippet": " queue(const context &SyclContext, const device &SyclDevice,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 239,
"column": 12,
"severity": "note",
"message": "candidate template ignored: requirement 'std::is_invocable_r_v<int, sycl::property::queue::in_order &, const sycl::device &>' was not satisfied [with DeviceSelector = sycl::property::queue::in_order]",
"flag": null,
"snippet": " explicit queue(const DeviceSelector &deviceSelector,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 252,
"column": 12,
"severity": "note",
"message": "candidate template ignored: requirement 'std::is_invocable_r_v<int, sycl::property::queue::in_order &, const sycl::device &>' was not satisfied [with DeviceSelector = sycl::property::queue::in_order]",
"flag": null,
"snippet": " explicit queue(const DeviceSelector &deviceSelector,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 266,
"column": 12,
"severity": "note",
"message": "candidate template ignored: requirement 'std::is_invocable_r_v<int, sycl::property::queue::enable_profiling &, const sycl::device &>' was not satisfied [with DeviceSelector = sycl::property::queue::enable_profiling]",
"flag": null,
"snippet": " explicit queue(const context &syclContext,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 219,
"column": 12,
"severity": "note",
"message": "candidate constructor not viable: allows at most single argument 'PropList', but 2 arguments were provided",
"flag": null,
"snippet": " explicit queue(const property_list &PropList = {})"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 385,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: requires single argument 'RHS', but 2 arguments were provided",
"flag": null,
"snippet": " queue(const queue &RHS) = default;"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 387,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: requires single argument 'RHS', but 2 arguments were provided",
"flag": null,
"snippet": " queue(queue &&RHS) = default;"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 3639,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: requires single argument 'impl', but 2 arguments were provided",
"flag": null,
"snippet": " queue(std::shared_ptr<detail::queue_impl> impl) : impl(impl) {}"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 350,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: requires at least 3 arguments, but 2 were provided",
"flag": null,
"snippet": " queue(const context &SyclContext, const device_selector &DeviceSelector,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 369,
"column": 3,
"severity": "note",
"message": "candidate constructor not viable: requires at least 3 arguments, but 2 were provided",
"flag": null,
"snippet": " queue(const context &SyclContext, const device &SyclDevice,"
},
{
"file": "/opt/dpcpp/bin/compiler/../../include/sycl/queue.hpp",
"line": 282,
"column": 12,
"severity": "note",
"message": "candidate constructor template not viable: requires at least 3 arguments, but 2 were provided",
"flag": null,
"snippet": " explicit queue(const context &syclContext,"
}
],
"counts": {
"error": 1,
"warning": 0,
"note": 17
}
}write_file ok
wrote migrated/fuzz.dp.cpp (1819 chars)
Model text · iteration 4
Wrap the properties in a property_list.
Tool input
{
"path": "migrated/fuzz.dp.cpp",
"content": "<54 lines; diff below>"
}
Diff vs previous version in this trace · +2 −2
--- a/migrated/fuzz.dp.cpp+++ b/migrated/fuzz.dp.cpp@@ -24,8 +24,8 @@ const size_t n = wav.samples.size(); const float norm = gain / std::tanh(drive); - sycl::queue q{sycl::property::queue::in_order{},- sycl::property::queue::enable_profiling{}};+ sycl::queue q{sycl::property_list{sycl::property::queue::in_order{},+ sycl::property::queue::enable_profiling{}}}; float *d_in = sycl::malloc_device<float>(n, q); float *d_out = sycl::malloc_device<float>(n, q);
full file as written
// SYCL version of the tanh soft-clip fuzz.
// Usage: fuzz <in.wav> <out.wav> [drive=8] [gain=0.8]
#include <sycl/sycl.hpp>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <vector>
#include "wav.hpp"
int main(int argc, char **argv) try {
if (argc < 3) {
std::fprintf(stderr, "usage: %s in.wav out.wav [drive] [gain]\n", argv[0]);
return 2;
}
const float drive = argc > 3 ? std::strtof(argv[3], nullptr) : 8.0f;
const float gain = argc > 4 ? std::strtof(argv[4], nullptr) : 0.8f;
WavData wav;
if (!wav_read(argv[1], wav)) {
std::fprintf(stderr, "cannot read %s\n", argv[1]);
return 1;
}
const size_t n = wav.samples.size();
const float norm = gain / std::tanh(drive);
sycl::queue q{sycl::property_list{sycl::property::queue::in_order{},
sycl::property::queue::enable_profiling{}}};
float *d_in = sycl::malloc_device<float>(n, q);
float *d_out = sycl::malloc_device<float>(n, q);
q.memcpy(d_in, wav.samples.data(), n * sizeof(float)).wait();
sycl::event ev = q.parallel_for(sycl::range<1>(n), [=](sycl::id<1> idx) {
const size_t i = idx[0];
d_out[i] = norm * sycl::tanh(drive * d_in[i]);
});
ev.wait_and_throw();
const double ms =
(ev.get_profiling_info<sycl::info::event_profiling::command_end>() -
ev.get_profiling_info<sycl::info::event_profiling::command_start>()) /
1.0e6;
std::printf("kernel_ms=%f\n", ms);
std::vector<float> out(n);
q.memcpy(out.data(), d_out, n * sizeof(float)).wait();
sycl::free(d_in, q);
sycl::free(d_out, q);
if (!wav_write_f32(argv[2], out.data(), out.size(), wav.channels, wav.sample_rate)) return 1;
return 0;
} catch (sycl::exception const &e) {
std::cerr << "SYCL exception: " << e.what() << std::endl;
return 1;
}
Evidence
evidence JSON (56 chars) · source hash 0bc46338ab9d0c90
{
"path": "migrated/fuzz.dp.cpp"
}compile ok
compiled 1 source(s) -> build/candidate (0 warning(s))
Model text · iteration 4
Wrap the properties in a property_list.
Tool input
{
"sources": [
"migrated/fuzz.dp.cpp"
],
"add_dpct_include": false
}
Limitations the tool reported
A successful compile says nothing about numerical correctness; run verify.
Evidence
evidence JSON (528 chars) · source hash 0bc46338ab9d0c90
{
"run": {
"command": "/opt/dpcpp/bin/icpx -fsycl -O2 -Iexamples/common migrated/fuzz.dp.cpp -o build/candidate",
"returncode": 0,
"duration_s": 4.669309,
"stdout": "",
"stderr": ""
},
"output": "build/candidate",
"dpct_include_added": null,
"diagnostics": [],
"counts": {
"error": 0,
"warning": 0,
"note": 0
}
}scan_helpers ok
no dpct helpers in 1 file(s)
Model text · iteration 5
No text this turn; the model went straight to tool calls.
Tool input
{}
Limitations the tool reported
Static text scan: macros that expand to dpct:: calls, or helpers reached through user-defined wrappers, are not detected.
Zero helpers means the code no longer depends on dpct headers; it does not prove the code is correct or fast. Run compile + verify + benchmark.
Evidence
evidence JSON (356 chars) · source hash 0bc46338ab9d0c90
{
"path": ".",
"files_scanned": 1,
"total": 0,
"by_category": {},
"by_symbol": {},
"by_file": {},
"occurrences": [],
"occurrences_truncated": 0,
"suggestions": {},
"unresolved_dpct_comments": [],
"advisories": []
}verify ok
PASS: 2/2 case(s) match (worst residual peak -138.5 dBFS, threshold -96.0 dBFS)
Model text · iteration 5
No text this turn; the model went straight to tool calls.
Tool input
{}
Loop saved a best-passing snapshot (iteration 5, 0 helper(s)): PASS: 2/2 case(s) match (worst residual peak -138.5 dBFS, threshold -96.0 dBFS)
Limitations the tool reported
Equivalence is shown only for the inputs tested; other inputs/sizes may behave differently.
Evidence
evidence JSON (4,809 chars) · source hash 0bc46338ab9d0c90
{
"mode": "audio",
"cases": [
{
"input": "examples/data/sweep_noise_48k.wav",
"reference": {
"command": "build/reference examples/data/sweep_noise_48k.wav verify_out/case0_reference.wav",
"returncode": 0,
"duration_s": 0.005209,
"stdout": "",
"stderr": "",
"cwd": ".",
"output_file": "verify_out/case0_reference.wav"
},
"candidate": {
"command": "build/candidate examples/data/sweep_noise_48k.wav verify_out/case0_candidate.wav",
"returncode": 0,
"duration_s": 0.230785,
"stdout": "kernel_ms=0.205041\n",
"stderr": "",
"cwd": ".",
"output_file": "verify_out/case0_candidate.wav"
},
"reference_format": "wav",
"candidate_format": "wav",
"mode": "audio",
"stats": {
"threshold_dbfs": -96.0,
"reference_frames": 96000,
"candidate_frames": 96000,
"reference_channels": 1,
"candidate_channels": 1,
"reference_sample_rate": 48000,
"candidate_sample_rate": 48000,
"passed": true,
"bit_exact": false,
"residual_peak": 1.1920928955078125e-07,
"residual_peak_dbfs": -138.47379800543135,
"residual_rms_dbfs": -150.7682322443899,
"reference_rms_dbfs": -2.7177661711857914,
"null_depth_db": 148.05046607320412,
"per_channel": [
{
"channel": 0,
"residual_peak_dbfs": -138.47379800543135,
"residual_rms_dbfs": -150.7682322443899,
"peak_frame": 49
}
]
},
"passed": true
},
{
"input": "examples/data/sweep_noise_stereo_44k.wav",
"reference": {
"command": "build/reference examples/data/sweep_noise_stereo_44k.wav verify_out/case1_reference.wav",
"returncode": 0,
"duration_s": 0.004696,
"stdout": "",
"stderr": "",
"cwd": ".",
"output_file": "verify_out/case1_reference.wav"
},
"candidate": {
"command": "build/candidate examples/data/sweep_noise_stereo_44k.wav verify_out/case1_candidate.wav",
"returncode": 0,
"duration_s": 0.218468,
"stdout": "kernel_ms=0.200583\n",
"stderr": "",
"cwd": ".",
"output_file": "verify_out/case1_candidate.wav"
},
"reference_format": "wav",
"candidate_format": "wav",
"mode": "audio",
"stats": {
"threshold_dbfs": -96.0,
"reference_frames": 44100,
"candidate_frames": 44100,
"reference_channels": 2,
"candidate_channels": 2,
"reference_sample_rate": 44100,
"candidate_sample_rate": 44100,
"passed": true,
"bit_exact": false,
"residual_peak": 1.1920928955078125e-07,
"residual_peak_dbfs": -138.47379800543135,
"residual_rms_dbfs": -150.81490995920677,
"reference_rms_dbfs": -2.720601028447553,
"null_depth_db": 148.0943089307592,
"per_channel": [
{
"channel": 0,
"residual_peak_dbfs": -138.47379800543135,
"residual_rms_dbfs": -150.81984862486655,
"peak_frame": 1957
},
{
"channel": 1,
"residual_peak_dbfs": -138.47379800543135,
"residual_rms_dbfs": -150.80997690326978,
"peak_frame": 391
}
]
},
"passed": true
}
],
"work_dir": "verify_out",
"passed_cases": 2,
"total_cases": 2,
"worst_residual_peak_dbfs": -138.47379800543135
}benchmark (by harness) ok
5 run(s) each; Intel(R) Xeon(R) Processor @ 2.10GHz: median 200.89 ms, p95 217.77 ms
Model text · iteration 5
No text this turn; the model went straight to tool calls.
Tool input
{
"runs": 5
}
Limitations the tool reported
Wall-clock time of the whole process (includes start-up, JIT compilation of SYCL kernels on first use, I/O). Use report_regex for in-program kernel timings.
Device selection uses ONEAPI_DEVICE_SELECTOR; it only takes effect if the program uses a default/selector-based sycl::queue.
Evidence
evidence JSON (1,675 chars) · source hash 0bc46338ab9d0c90
{
"command": "build/candidate examples/data/sweep_noise_48k.wav verify_out/bench_out",
"runs": 5,
"warmup": 1,
"device_discovery": {
"sycl_ls": {
"command": "/opt/dpcpp/bin/sycl-ls",
"returncode": 0,
"duration_s": 0.04078,
"stdout": "[opencl:cpu][opencl:0] Intel(R) OpenCL, Intel(R) Xeon(R) Processor @ 2.10GHz OpenCL 3.0 (Build 0) [2026.21.7.0.24_160000]\n",
"stderr": ""
}
},
"results": [
{
"selector": "opencl:0",
"device": {
"backend": "opencl",
"device_type": "cpu",
"index": 0,
"platform": "Intel(R) OpenCL",
"name": "Intel(R) Xeon(R) Processor @ 2.10GHz",
"description": "Intel(R) OpenCL, Intel(R) Xeon(R) Processor @ 2.10GHz OpenCL 3.0 (Build 0) [2026.21.7.0.24_160000]",
"selector": "opencl:0"
},
"status": "ok",
"wall_time_s": {
"n": 5,
"min": 0.18981099499995935,
"median": 0.20089434900000924,
"p95": 0.21777224499999193,
"max": 0.21878486299999622,
"mean": 0.20359321679999312,
"stdev": 0.012336300146315276
},
"samples_s": [
0.200894,
0.213722,
0.194754,
0.218785,
0.189811
]
}
]
}