From: Piotr Trojanek <troja...@adacore.com>

Lock-free expansion of protected subprograms is only possible when there
are no references to global assignable objects. We only detected such
references when they appeared as direct names, but we must similarly
detect expanded names.

gcc/ada/

        * sem_ch9.adb (Satisfies_Lock_Free_Requirements): Detect
        references via expanded names.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/sem_ch9.adb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/ada/sem_ch9.adb b/gcc/ada/sem_ch9.adb
index f2a59017865..5dee216256c 100644
--- a/gcc/ada/sem_ch9.adb
+++ b/gcc/ada/sem_ch9.adb
@@ -463,7 +463,7 @@ package body Sem_Ch9 is
 
                   --  References
 
-                  elsif Kind = N_Identifier
+                  elsif Kind in N_Identifier | N_Expanded_Name
                     and then Present (Entity (N))
                   then
                      declare
@@ -564,7 +564,7 @@ package body Sem_Ch9 is
                   --  reference only one component of the protected type, plus
                   --  the type of the component must support atomic operation.
 
-                  if Kind = N_Identifier
+                  if Kind in N_Identifier | N_Expanded_Name
                     and then Present (Entity (N))
                   then
                      declare
-- 
2.34.1

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