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authorVincent Pucci <pucci@adacore.com>2012-07-30 15:12:15 +0000
committerArnaud Charlet <charlet@gcc.gnu.org>2012-07-30 17:12:15 +0200
commitb5059fa0897458f65c8c2a30f3d16c8dbc1e0e03 (patch)
tree1e514a1830f592673f0fcf04c1f66e2283589aa7 /gcc
parent5aea1e76a80c9c5770692ece18100b9383cbab3a (diff)
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sem_ch9.adb (Allows_Lock_Free_Implementation): Restrict implicit dereferences of access values.
2012-07-30 Vincent Pucci <pucci@adacore.com> * sem_ch9.adb (Allows_Lock_Free_Implementation): Restrict implicit dereferences of access values. From-SVN: r189975
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ada/ChangeLog5
-rw-r--r--gcc/ada/sem_ch9.adb11
2 files changed, 12 insertions, 4 deletions
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index d425a70..c87a444 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,8 @@
+2012-07-30 Vincent Pucci <pucci@adacore.com>
+
+ * sem_ch9.adb (Allows_Lock_Free_Implementation): Restrict implicit
+ dereferences of access values.
+
2012-07-27 Iain Sandoe <iain@codesourcery.com>
* system-darwin-ppc64.ads: Add Support_Atomic_Primitives, set to True.
diff --git a/gcc/ada/sem_ch9.adb b/gcc/ada/sem_ch9.adb
index 1420ba8..c392dcc 100644
--- a/gcc/ada/sem_ch9.adb
+++ b/gcc/ada/sem_ch9.adb
@@ -411,12 +411,15 @@ package body Sem_Ch9 is
return Abandon;
- -- Explicit dereferences restricted (i.e. dereferences of
- -- access values).
+ -- Dereferences of access values restricted
- elsif Kind = N_Explicit_Dereference then
+ elsif Kind = N_Explicit_Dereference
+ or else (Kind = N_Selected_Component
+ and then Is_Access_Type (Etype (Prefix (N))))
+ then
if Lock_Free_Given then
- Error_Msg_N ("explicit dereference not allowed", N);
+ Error_Msg_N ("dereference of access value " &
+ "not allowed", N);
return Skip;
end if;