Allow taking the address of a volatile object in SPARK, as it doesn't
cause problems related to interfering contexts.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* sem_res.adb (Flag_Object): Ignore prefixes of attribute
Address.diff --git a/gcc/ada/sem_res.adb b/gcc/ada/sem_res.adb
--- a/gcc/ada/sem_res.adb
+++ b/gcc/ada/sem_res.adb
@@ -3749,6 +3749,19 @@ package body Sem_Res is
begin
case Nkind (N) is
+
+ -- Do not consider object name appearing in the prefix of
+ -- attribute Address as a read.
+
+ when N_Attribute_Reference =>
+
+ -- Prefix of attribute Address denotes an object, program
+ -- unit, or label; none of them needs to be flagged here.
+
+ if Attribute_Name (N) = Name_Address then
+ return Skip;
+ end if;
+
-- Do not consider nested function calls because they have
-- already been processed during their own resolution.
