[PATCH] Improve shrink-wrapping debug output

[Jeff Law]

On Sat, 2020-07-04 at 16:07 +0300, Alexander Popov wrote:
> Currently if requires_stack_frame_p() returns true for some insn,
> the shrink-wrapping debug output contains only the number of a block
> containing that insn.
> 
> But it is very useful to see the particular insn that requires the
> prologue. Let's call print_rtl_single to display that insn in the
> following pass dump.
> 
> 2020-07-04 Alexander Popov <alex.popov@linux.com>
> 
> gcc/ChangeLog:
> 
> 	* shrink-wrap.c (try_shrink_wrapping): Improve debug output.
Thanks.  I've installed this on the trunk.

jeff
>