[SYCL][ESIMD] Add test for kernel defined in template function (intel#1511)

* [SYCL][ESIMD] Add test for kernel defined in template function

Signed-off-by: Sarnie, Nick <[email protected]>

Author: sarnex

SYCL/ESIMD/template.cpp

@@ -0,0 +1,104 @@
+//==---------------- template.cpp  - DPC++ ESIMD on-device test ------------==//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+// REQUIRES: gpu
+// UNSUPPORTED: cuda || hip
+// RUN: %clangxx -fsycl %s -o %t.out
+// RUN: %GPU_RUN_PLACEHOLDER %t.out
+
+#include "esimd_test_utils.hpp"
+
+#include <iostream>
+#include <sycl/ext/intel/esimd.hpp>
+#include <sycl/sycl.hpp>
+
+using namespace sycl;
+
+constexpr unsigned Size = 1024 * 128;
+constexpr unsigned VL = 16;
+
+template <typename T>
+sycl::event createKernel(sycl::queue &q, buffer<T, 1> &bufa, buffer<T, 1> &bufb,
+                         buffer<T, 1> &bufc) {
+  // We need that many workgroups
+  range<1> GlobalRange{Size / VL};
+
+  // We need that many threads in each group
+  range<1> LocalRange{1};
+  return q.submit([&](handler &cgh) {
+    auto PA = bufa.template get_access<access::mode::read>(cgh);
+    auto PB = bufb.template get_access<access::mode::read>(cgh);
+    auto PC = bufc.template get_access<access::mode::write>(cgh);
+    cgh.parallel_for<class Test>(GlobalRange * LocalRange,
+                                 [=](id<1> i) SYCL_ESIMD_KERNEL {
+                                   using namespace sycl::ext::intel::esimd;
+                                   unsigned int offset = i * VL * sizeof(T);
+                                   simd<T, VL> va;
+                                   va.copy_from(PA, offset);
+                                   simd<T, VL> vb;
+                                   vb.copy_from(PB, offset);
+                                   simd<T, VL> vc = va + vb;
+                                   vc.copy_to(PC, offset);
+                                 });
+  });
+}
+
+int main(void) {
+
+  float *A = new float[Size];
+  float *B = new float[Size];
+  float *C = new float[Size];
+
+  for (unsigned i = 0; i < Size; ++i) {
+    A[i] = B[i] = i;
+    C[i] = 0.0f;
+  }
+
+  try {
+
+    buffer<float, 1> bufa(A, range<1>(Size));
+    buffer<float, 1> bufb(B, range<1>(Size));
+    buffer<float, 1> bufc(C, range<1>(Size));
+
+    queue q(esimd_test::ESIMDSelector, esimd_test::createExceptionHandler());
+
+    auto dev = q.get_device();
+    std::cout << "Running on " << dev.get_info<info::device::name>() << "\n";
+    auto e = createKernel(q, bufa, bufb, bufc);
+    e.wait();
+  } catch (sycl::exception const &e) {
+    std::cout << "SYCL exception caught: " << e.what() << '\n';
+
+    delete[] A;
+    delete[] B;
+    delete[] C;
+    return 1;
+  }
+
+  int err_cnt = 0;
+
+  for (unsigned i = 0; i < Size; ++i) {
+    if (A[i] + B[i] != C[i]) {
+      if (++err_cnt < 10) {
+        std::cout << "failed at index " << i << ", " << C[i] << " != " << A[i]
+                  << " + " << B[i] << "\n";
+      }
+    }
+  }
+  if (err_cnt > 0) {
+    std::cout << "  pass rate: "
+              << ((float)(Size - err_cnt) / (float)Size) * 100.0f << "% ("
+              << (Size - err_cnt) << "/" << Size << ")\n";
+  }
+
+  delete[] A;
+  delete[] B;
+  delete[] C;
+
+  std::cout << (err_cnt > 0 ? "FAILED\n" : "Passed\n");
+  return err_cnt > 0 ? 1 : 0;
+}