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| author | Yannick Moy <moy@adacore.com> | 2021-04-30 12:41:22 +0200 |
|---|---|---|
| committer | Pierre-Marie de Rodat <derodat@adacore.com> | 2021-07-05 13:09:16 +0000 |
| commit | 902d7076663aff56198b81f8efa356c3e1024e80 (patch) | |
| tree | c11d9bd441bd9be5a4be166bcc2a51fdc734b235 | |
| parent | 796b616383780e7707c21e4e31eb627e5937a93f (diff) | |
| download | gcc-902d7076663aff56198b81f8efa356c3e1024e80.zip gcc-902d7076663aff56198b81f8efa356c3e1024e80.tar.gz gcc-902d7076663aff56198b81f8efa356c3e1024e80.tar.bz2 | |
[Ada] Adapt SPARK RM rule on non-effectively volatile abstract state
gcc/ada/
* sem_prag.adb (Analyze_Global_Item): Adapt to update SPARK RM
rule.
| -rw-r--r-- | gcc/ada/sem_prag.adb | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/ada/sem_prag.adb b/gcc/ada/sem_prag.adb index fa63fda..0efdcef 100644 --- a/gcc/ada/sem_prag.adb +++ b/gcc/ada/sem_prag.adb @@ -2433,10 +2433,13 @@ package body Sem_Prag is SPARK_Msg_N ("\use its constituents instead", Item); return; - -- An external state cannot appear as a global item of a - -- nonvolatile function (SPARK RM 7.1.3(8)). + -- An external state which has Async_Writers or + -- Effective_Reads enabled cannot appear as a global item + -- of a nonvolatile function (SPARK RM 7.1.3(8)). elsif Is_External_State (Item_Id) + and then (Async_Writers_Enabled (Item_Id) + or else Effective_Reads_Enabled (Item_Id)) and then Ekind (Spec_Id) in E_Function | E_Generic_Function and then not Is_Volatile_Function (Spec_Id) then |