[LLVMdev] Generic question about llc asserts

[Eli Friedman]

On Thu, Aug 9, 2012 at 1:00 PM, Carter, Jack <jcarter at mips.com> wrote:
> In my experience assertions are a development tool and should not be a part
> of the user's experience.
>
> With that in mind, do we expect the end user to ever invoke llc directly?
>
> The reason I ask is that I directly gave llc some bogus command line input
> and it asserted.
>
> Is it a bug that a graceful error message and exit from llc wasn't performed
> or is it considered "fair game" to generate an assertion because I didn't go
> through the larger tool chain?

Generally, it's a bug; if there's some construct we can't generate
code for, we should be using report_fatal_error.

Granted, bugs like that have much lower priority than bugs which can
be triggered from realistic code.

-Eli