[gcc r12-2029] [Ada] Simplify and reuse Is_Concurrent_Interface

[Pierre-Marie de Rodat <pmderodat@gcc.gnu.org>]

https://gcc.gnu.org/g:6cf7cc8ccf3a7f34c1772f8da11a1c127fee3363

commit r12-2029-g6cf7cc8ccf3a7f34c1772f8da11a1c127fee3363
Author: Piotr Trojanek <trojanek@adacore.com>
Date:   Fri Apr 30 12:02:35 2021 +0200

    [Ada] Simplify and reuse Is_Concurrent_Interface
    
    gcc/ada/
    
            * exp_ch3.adb (Stream_Operation_OK): Reuse
            Is_Concurrent_Interface.
            * sem_ch3.adb (Analyze_Interface_Declaration,
            Build_Derived_Record_Type): Likewise.
            * sem_ch6.adb (Check_Limited_Return): Likewise.
            * sem_util.adb (Is_Concurrent_Interface): Don't call
            Is_Interface because each of the Is_Protected_Interface,
            Is_Synchronized_Interface and Is_Task_Interface calls it anyway.

Diff:
---
 gcc/ada/exp_ch3.adb  | 7 +------
 gcc/ada/sem_ch3.adb  | 8 ++------
 gcc/ada/sem_ch6.adb  | 5 +----
 gcc/ada/sem_util.adb | 8 +++-----
 4 files changed, 7 insertions(+), 21 deletions(-)

diff --git a/gcc/ada/exp_ch3.adb b/gcc/ada/exp_ch3.adb
index ce6d294e923..2f997a39fc8 100644
--- a/gcc/ada/exp_ch3.adb
+++ b/gcc/ada/exp_ch3.adb
@@ -11251,12 +11251,7 @@ package body Exp_Ch3 is
             or else not Is_Abstract_Type (Typ)
             or else not Is_Derived_Type (Typ))
         and then not Has_Unknown_Discriminants (Typ)
-        and then not
-          (Is_Interface (Typ)
-            and then
-              (Is_Task_Interface (Typ)
-                or else Is_Protected_Interface (Typ)
-                or else Is_Synchronized_Interface (Typ)))
+        and then not Is_Concurrent_Interface (Typ)
         and then not Restriction_Active (No_Streams)
         and then not Restriction_Active (No_Dispatch)
         and then No (No_Tagged_Streams_Pragma (Typ))
diff --git a/gcc/ada/sem_ch3.adb b/gcc/ada/sem_ch3.adb
index aa73f3a350b..95a27a28da6 100644
--- a/gcc/ada/sem_ch3.adb
+++ b/gcc/ada/sem_ch3.adb
@@ -3493,9 +3493,7 @@ package body Sem_Ch3 is
 
       --  Check runtime support for synchronized interfaces
 
-      if (Is_Task_Interface (T)
-           or else Is_Protected_Interface (T)
-           or else Is_Synchronized_Interface (T))
+      if Is_Concurrent_Interface (T)
         and then not RTE_Available (RE_Select_Specific_Data)
       then
          Error_Msg_CRT ("synchronized interfaces", T);
@@ -9270,9 +9268,7 @@ package body Sem_Ch3 is
                   and then Is_Limited_Record (Full_View (Parent_Type)))
       then
          if not Is_Interface (Parent_Type)
-           or else Is_Synchronized_Interface (Parent_Type)
-           or else Is_Protected_Interface (Parent_Type)
-           or else Is_Task_Interface (Parent_Type)
+           or else Is_Concurrent_Interface (Parent_Type)
          then
             Set_Is_Limited_Record (Derived_Type);
          end if;
diff --git a/gcc/ada/sem_ch6.adb b/gcc/ada/sem_ch6.adb
index 3697abaa23b..4b58d593733 100644
--- a/gcc/ada/sem_ch6.adb
+++ b/gcc/ada/sem_ch6.adb
@@ -6999,10 +6999,7 @@ package body Sem_Ch6 is
       --  A limited interface that is not immutably limited is OK
 
       if Is_Limited_Interface (R_Type)
-        and then
-          not (Is_Task_Interface (R_Type)
-                or else Is_Protected_Interface (R_Type)
-                or else Is_Synchronized_Interface (R_Type))
+        and then not Is_Concurrent_Interface (R_Type)
       then
          null;
 
diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb
index 25060cc9502..ef575d0e9f7 100644
--- a/gcc/ada/sem_util.adb
+++ b/gcc/ada/sem_util.adb
@@ -16209,11 +16209,9 @@ package body Sem_Util is
 
    function Is_Concurrent_Interface (T : Entity_Id) return Boolean is
    begin
-      return Is_Interface (T)
-        and then
-          (Is_Protected_Interface (T)
-            or else Is_Synchronized_Interface (T)
-            or else Is_Task_Interface (T));
+      return Is_Protected_Interface (T)
+        or else Is_Synchronized_Interface (T)
+        or else Is_Task_Interface (T);
    end Is_Concurrent_Interface;
 
    -----------------------