[SYCL] Add test covering loading kernel images from file

Also rename config folder to COnfig to match llvm-test-suite
naming scheme.

Author: vladimirlaz

SYCL/Basic/config/allowlist.cpp renamed to SYCL/Basic/Config/allowlist.cpp

@@ -20,8 +20,9 @@ using namespace cl;
 
 static void replaceSpecialCharacters(std::string &Str) {
   // Replace common special symbols with '.' which matches to any character
-  std::replace_if(Str.begin(), Str.end(),
-                  [](const char Sym) { return '(' == Sym || ')' == Sym; }, '.');
+  std::replace_if(
+      Str.begin(), Str.end(),
+      [](const char Sym) { return '(' == Sym || ')' == Sym; }, '.');
 }
 
 int main() {

SYCL/Basic/config/config.cpp renamed to SYCL/Basic/Config/config.cpp

@@ -0,0 +1,44 @@
+// UNSUPPORTED: cuda
+// CUDA does not support SPIR-V.
+
+// RUN: %clangxx -fsycl-device-only -fno-sycl-use-bitcode -Xclang -fsycl-int-header=%t.h -c %s -o %t.spv -I %sycl_include -Xclang -verify-ignore-unexpected=note,warning -Wno-sycl-strict
+// RUN: %clangxx -include %t.h %s -o %t.out -lsycl -I %sycl_include -Xclang -verify-ignore-unexpected=note,warning
+// RUN: env SYCL_BE=%sycl_be SYCL_USE_KERNEL_SPV=%t.spv %t.out | FileCheck %s
+// CHECK: Passed
+
+#include <CL/sycl.hpp>
+#include <iostream>
+
+using namespace cl::sycl;
+
+int main(int argc, char **argv) {
+  int data = 5;
+
+  try {
+    queue myQueue;
+    buffer<int, 1> buf(&data, range<1>(1));
+
+    event e = myQueue.submit([&](handler &cgh) {
+      auto ptr = buf.get_access<access::mode::read_write>(cgh);
+
+      cgh.single_task<class my_kernel>([=]() { ptr[0]++; });
+    });
+    e.wait_and_throw();
+
+  } catch (cl::sycl::exception const &e) {
+    std::cerr << "SYCL exception caught:\n";
+    std::cerr << e.what() << "\n";
+    return 2;
+  } catch (...) {
+    std::cerr << "unknown exception caught\n";
+    return 1;
+  }
+
+  if (data == 6) {
+    std::cout << "Passed\n";
+    return 0;
+  } else {
+    std::cout << "Failed: " << data << "!= 6(gold)\n";
+    return 1;
+  }
+}