tra added a comment.

In https://reviews.llvm.org/D39502#917267, @steven_wu wrote:

> Improve testcase according to review feedback.
>
> In order to let compilation to be successful for one input, I need to use
>  -fsyntax-only because I don't have nvptx assembler. Enable -fsyntax-only
>  changes the order of the compilation somehow so I need to reorder the
>  errors and warnings a little bit.


Right.  With -fsyntax-only host compilation no longer depends on device-side 
binary. You may want to add a comment in the test explaining peculiar order of 
checks.



================
Comment at: test/Driver/cuda-bail-out.cu:47
+// CHECK-HOST-ERROR: Error during compilation for host
+// CHECK-HOST-ERROR-NOT: Error during compilation for sm_35
----------------
To make it more robust, I'd add another copy of the last line before 
CHECK-HOST-ERROR: so it would catch device-side errors if they were to happen 
ahead of the host.

Generally speaking, expected behavior is "I want to see an error from one 
compilation only". We don't really care which CUDA compilation phase produces 
it. Perhaps all we need in all test cases is:

```
CHECK: Error during compilation
CHECK-NOT:  Error during compilation
```

This way we don't need to depend on specific phase order.


https://reviews.llvm.org/D39502



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