Add nuw in GEP for check_device_code tests

Due to 94473f4 2024-08-09 [IRBuilder] Generate nuw GEPs for struct
member accesses (#99538)

Author: e-kud

sycl/test/check_device_code/usm_pointers.cpp

@@ -11,15 +11,15 @@
 // CHECK-ENABLE: %[[HOSTPTR_T:.*]] = type { ptr addrspace(6) }
 //
 // CHECK-LABEL: define {{.*}} spir_func noundef ptr addrspace(4) @{{.*}}multi_ptr{{.*}}
-// CHECK: %[[M_PTR:.*]] = getelementptr inbounds %[[DEVPTR_T]]
+// CHECK: %[[M_PTR:.*]] = getelementptr inbounds nuw %[[DEVPTR_T]]
 // CHECK-DISABLE-NEXT: %[[DEVLOAD:[0-9]+]] = load ptr addrspace(1), ptr addrspace(4) %[[M_PTR]]
 // CHECK-DISABLE-NEXT: %[[DEVCAST:[0-9]+]] = addrspacecast ptr addrspace(1) %[[DEVLOAD]] to ptr addrspace(4)
 // CHECK-ENABLE-NEXT: %[[DEVLOAD:[0-9]+]] = load ptr addrspace(5), ptr addrspace(4) %[[M_PTR]]
 // CHECK-ENABLE-NEXT: %[[DEVCAST:[0-9]+]] = addrspacecast ptr addrspace(5) %[[DEVLOAD]] to ptr addrspace(4)
 // ret ptr addrspace(4) %[[DEVCAST]]
 //
 // CHECK-LABEL: define {{.*}} spir_func noundef ptr addrspace(4) @{{.*}}multi_ptr{{.*}}
-// CHECK: %[[M_PTR]] = getelementptr inbounds %[[HOSTPTR_T]]
+// CHECK: %[[M_PTR]] = getelementptr inbounds nuw %[[HOSTPTR_T]]
 // CHECK-DISABLE-NEXT: %[[HOSTLOAD:[0-9]+]] = load ptr addrspace(1), ptr addrspace(4) %[[M_PTR]]
 // CHECK-DISABLE-NEXT: %[[HOSTCAST:[0-9]+]] = addrspacecast ptr addrspace(1) %[[HOSTLOAD]] to ptr addrspace(4)
 // CHECK-ENABLE-NEXT: %[[HOSTLOAD:[0-9]+]] = load ptr addrspace(6), ptr addrspace(4) %[[M_PTR]]
@@ -36,4 +36,4 @@ SYCL_EXTERNAL void usm_pointers() {
   ext::intel::host_ptr<void> HostPtr(Ptr);
   global_ptr<void> GlobPtr = global_ptr<void>(DevPtr);
   GlobPtr = global_ptr<void>(HostPtr);
-}
+}