Re: [PATCH] add 'rs6000_in_function_epilogue_p()'

Jim Blandy
2005-12-03T05:43:14Z

On 12/2/05, Daniel Jacobowitz <drow@false.org> wrote:
> Fascinating. So, do both prologue and epilogue recognition. It would
> be useful for backtraces in epilogues, but not for much else, and it
> would be a lot of work, so I have trouble seeing this get implemented.
> But, maybe.

Well, I was suggesting that Paul do it, you see. :)

(I don't think it'd be that much work.)

> Of course this is only useful without CFI and the main reason PPC
> doesn't use CFI has been solved. And the problem is likely to
> reoccur with CFI that doesn't describe the epilogue, which today is
> prevalent.

As I've always said, compiler-provided CFI is better.