[SYCL][NFC] Correct incorrect lit test (#4283)

Signed-off-by: Elizabeth Andrews <[email protected]>

Author: elizabethandrews

clang/test/CodeGenSYCL/accessor_no_alias_property.cpp

@@ -1,10 +1,6 @@
 // RUN: %clang_cc1 -fsycl-is-device -triple spir64-unknown-unknown-sycldevice -emit-llvm %s -o - | FileCheck %s
-// check that noalias parameter attribute is emitted when no_alias accessor property is used
-// CHECK: define {{.*}}spir_kernel void @_ZTSZ4mainE16kernel_function1({{.*}} noalias {{.*}} %_arg_, {{.*}})
 
-// check that noalias parameter attribute is NOT emitted when it is not used
-// CHECK: define {{.*}}spir_kernel void @_ZTSZ4mainE16kernel_function2{{.*}} !kernel_arg_buffer_location
-// CHECK-NOT: define {{.*}}spir_kernel void @_ZTSZ4mainE16kernel_function2({{.*}} noalias {{.*}}
+// This test validates the behaviour of noalias parameter attribute.
 
 #include "Inputs/sycl.hpp"
 
@@ -23,11 +19,17 @@ int main() {
                          cl::sycl::ext::intel::property::buffer_location::instance<1>>>
       accessorB;
 
+  // Check that noalias parameter attribute is emitted when no_alias accessor property is used
+  // CHECK: define {{.*}}spir_kernel void @_ZTSZ4mainE16kernel_function1({{.*}} noalias {{.*}} %_arg_, {{.*}})
   cl::sycl::kernel_single_task<class kernel_function1>(
       [=]() {
         accessorA.use();
       });
 
+  // Check that noalias parameter attribute is NOT emitted when it is not used
+  // CHECK: define {{.*}}spir_kernel void @_ZTSZ4mainE16kernel_function2
+  // CHECK-NOT: noalias
+  // CHECK-SAME: {
   cl::sycl::kernel_single_task<class kernel_function2>(
       [=]() {
         accessorB.use();