https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80855

            Bug ID: 80855
           Summary: [nvptx] missing sorry("target cannot support label
                    values"
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

When compilling this example:
...
int
main (void)
{
  goto L2;
 L1:
  return 0;
 L2:
  {
    void *ptr = &&L1;
    goto *ptr;
  }
}
...
we see:
...
test.c: In function ‘main’:
test.c:2:1: sorry, unimplemented: indirect jumps are not available on this
target
 main (void)
 ^~~~
...

But when we comment out the 'goto *ptr', we see:
...
ptxas test.o, line 25; error   : Arguments mismatch for instruction 'mov'
ptxas fatal   : Ptx assembly aborted due to errors
nvptx-as: ptxas returned 255 exit status
...

We want a similar 'sorry' message for label values.

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