[Bug target/70216] New: [SH] Implement __builtin_trap

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216

            Bug ID: 70216
           Summary: [SH] Implement __builtin_trap
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: olegendo at gcc dot gnu.org
  Target Milestone: ---
            Target: sh*-*-*

Debian folks have noted that __builtin_trap is not implemented on SH, which
causes some inconveniences when building glibc.

https://lists.debian.org/debian-superh/2016/03/msg00000.html

Other targets seem to implement __builtin_trap via unconditional trap, e.g.
ARM:

https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=205749

We could do something similar on SH.