Add memory buffer test

Author: zhaomaosu

sycl/test-e2e/MemorySanitizer/check_buffer.cpp

@@ -0,0 +1,29 @@
+// REQUIRES: linux, cpu || (gpu && level_zero)
+// RUN: %{build} %device_msan_flags -O1 -g -o %t2.out
+// RUN: %{run} not %t2.out 2>&1 | FileCheck %s
+// RUN: %{build} %device_msan_flags -O2 -g -o %t3.out
+// RUN: %{run} not %t3.out 2>&1 | FileCheck %s
+
+#include <sycl/detail/core.hpp>
+
+__attribute__((noinline)) long long foo(int data1, long long data2) {
+  return data1 + data2;
+}
+
+int main() {
+  sycl::queue q;
+
+  sycl::buffer<int, 1> buf1(sycl::range<1>(1));
+  sycl::buffer<long long, 1> buf2(sycl::range<1>(1));
+  q.submit([&](sycl::handler &h) {
+     auto array1 = buf1.get_access<sycl::access::mode::read_write>(h);
+     auto array2 = buf2.get_access<sycl::access::mode::read_write>(h);
+     h.single_task<class MyKernel>(
+         [=]() { array1[0] = foo(array1[0], array2[0]); });
+   }).wait();
+  // CHECK: use-of-uninitialized-value
+  // CHECK: kernel <{{.*MyKernel}}>
+  // CHECK: #0 {{.*}} {{.*check_buffer.cpp}}:[[@LINE-4]]
+
+  return 0;
+}