[PATCH] coroutines : Call promise CTOR with parm copies [PR97587].

[Nathan Sidwell]

On 2/24/21 3:09 PM, Iain Sandoe wrote:
> Hi,
> 
> As the PR notes, we were calling the promise CTOR with the original
> function parameters, not the copy (as pointed, a previous wording of
> the section on this was unambiguous).  Fixed thus.
> 
> tested on x86_64-darwin, x86_64-linux-gnu,
> this is a wrong-code bug,
> 
> OK for master / 10.x?
> thanks
> Iain
> 
> gcc/cp/ChangeLog:
> 
> 	PR c++/97587
> 	* coroutines.cc (struct param_info): Track rvalue refs.
> 	(morph_fn_to_coro): Track rvalue refs, and call the promise
> 	CTOR with the frame copy of passed parms.
> 
> gcc/testsuite/ChangeLog:
> 
> 	PR c++/97587
> 	* g++.dg/coroutines/coro1-refs-and-ctors.h: Add a CTOR with two
> 	reference parms, to distinguish the rvalue ref. variant.
> 	* g++.dg/coroutines/pr97587.C: New test.

ok, thanks


-- 
Nathan Sidwell