[gcc r12-3290] coroutines : Add a missed begin/finish else clause to the codegen.

[gcc r12-3290] coroutines : Add a missed begin/finish else clause to the codegen.

[Iain D Sandoe]

https://gcc.gnu.org/g:21b4d0ef543d68187d258415b51d0d6676af89fd

commit r12-3290-g21b4d0ef543d68187d258415b51d0d6676af89fd
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Wed Mar 3 16:14:24 2021 +0000

    coroutines : Add a missed begin/finish else clause to the codegen.
    
    Minor code-gen correction.
    
    Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
    
    gcc/cp/ChangeLog:
    
            * coroutines.cc (build_actor_fn): Add begin/finish clauses
            to the initial test in the actor function.

Diff:
---
 gcc/cp/coroutines.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/cp/coroutines.cc b/gcc/cp/coroutines.cc
index 3bb33cc9eb9..ceb3d3be75e 100644
--- a/gcc/cp/coroutines.cc
+++ b/gcc/cp/coroutines.cc
@@ -2331,6 +2331,7 @@ build_actor_fn (location_t loc, tree coro_frame_type, tree actor, tree fnbody,
   finish_switch_stmt (destroy_dispatcher);
 
   finish_then_clause (lsb_if);
+  begin_else_clause (lsb_if);
 
   tree dispatcher = begin_switch_stmt ();
   finish_switch_cond (rat, dispatcher);
@@ -2368,6 +2369,7 @@ build_actor_fn (location_t loc, tree coro_frame_type, tree actor, tree fnbody,
 
   /* Insert the prototype dispatcher.  */
   finish_switch_stmt (dispatcher);
+  finish_else_clause (lsb_if);
 
   finish_if_stmt (lsb_if);