diff options
Diffstat (limited to 'gcc/ada/exp_ch9.adb')
| -rw-r--r-- | gcc/ada/exp_ch9.adb | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/gcc/ada/exp_ch9.adb b/gcc/ada/exp_ch9.adb index decf617..70ede15 100644 --- a/gcc/ada/exp_ch9.adb +++ b/gcc/ada/exp_ch9.adb @@ -3207,10 +3207,45 @@ package body Exp_Ch9 is Find_Enclosing_Context (Par, Context, Context_Id, Decls); end if; + -- When the enclosing context is a BIP function whose result type has + -- tasks, the function has an extra formal that is the master of the + -- tasks to be created by its returned object (that is, when its + -- enclosing context is a return statement). However, if the body of + -- the function creates tasks before its return statements, such tasks + -- need their own master. + + if Has_Master_Entity (Context_Id) + and then Ekind (Context_Id) = E_Function + and then Is_Build_In_Place_Function (Context_Id) + and then Needs_BIP_Task_Actuals (Context_Id) + then + -- No need to add it again if previously added + + declare + Master_Present : Boolean; + + begin + -- Handle transient scopes + + if Context_Id /= Current_Scope then + Push_Scope (Context_Id); + Master_Present := + Present (Current_Entity_In_Scope (Name_uMaster)); + Pop_Scope; + else + Master_Present := + Present (Current_Entity_In_Scope (Name_uMaster)); + end if; + + if Master_Present then + return; + end if; + end; + -- Nothing to do if the context already has a master; internally built -- finalizers don't need a master. - if Has_Master_Entity (Context_Id) + elsif Has_Master_Entity (Context_Id) or else Is_Finalizer (Context_Id) then return; |