https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99151
--- Comment #6 from Sebastian Huber <sebastian.hu...@embedded-brains.de> ---
(In reply to Eric Botcazou from comment #5)
> static void
> sparc_asm_function_epilogue (FILE *file)
> {
> /* If the last two instructions of a function are "call foo; dslot;"
> the return address might point to the first instruction in the next
> function and we have to output a dummy nop for the sake of sane
> backtraces in such cases. This is pointless for sibling calls since
> the return address is explicitly adjusted. */
This nop behaviour could be a bit inconsistent across architectures. For
example, arm and powerpc don't generate a nop here.
I still think that the profiling counter increment in the
__builtin_unreachable() path is a bug.
