Add comment and combine no ITT check tests

Author: mdtoguchi

clang/test/Driver/sycl-instrumentation-old-model.c

@@ -26,13 +26,15 @@
 // RUN: %clangxx -fsycl --no-offload-new-driver -fsycl-targets=spir64 -### \
 // RUN:   --sysroot=%S/Inputs/SYCL %s 2>&1 \
 // RUN: | FileCheck -check-prefixes=CHECK-ITT-LINK-ONLY %s
-// RUN: %clangxx -fsycl --no-offload-new-driver --sysroot=%S/Inputs/SYCL \
-// RUN:   -fsycl-targets=nvptx64-nvidia-cuda -nocudalib -### %s 2>&1 \
-// RUN: | FileCheck -check-prefixes=CHECK-NONPASSED %s
 
 // CHECK-ITT-LINK-ONLY-NOT: "-fsycl-instrument-device-code"
 // CHECK-ITT-LINK-ONLY: llvm-link{{.*}} {{.*}}libsycl-itt-{{.*}}
 
+// Verify that ITT annotations are not pulled in for non-SPIR-V targets as
+// well as when device code instrumentation is explicitly turned off.
+// RUN: %clangxx -fsycl --no-offload-new-driver --sysroot=%S/Inputs/SYCL \
+// RUN:   -fsycl-targets=nvptx64-nvidia-cuda -nocudalib -### %s 2>&1 \
+// RUN: | FileCheck -check-prefixes=CHECK-NONPASSED %s
 // RUN: %clangxx -fsycl --no-offload-new-driver --sysroot=%S/Inputs/SYCL \
 // RUN:   -fno-sycl-instrument-device-code -fsycl-targets=spir64 -### %s 2>&1 \
 // RUN: | FileCheck -check-prefixes=CHECK-NONPASSED %s