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authorJavier Miranda <miranda@adacore.com>2019-12-13 09:04:18 +0000
committerPierre-Marie de Rodat <pmderodat@gcc.gnu.org>2019-12-13 09:04:18 +0000
commit20dc266e5a178fd87bb8ae6ebbf63e391f74e9b0 (patch)
tree76f6ee6f563585d48c5854f40e3ced0a9640bc7e /gcc/ada/exp_disp.ads
parent6c9e4a1d65bc7ff2747f714ebb48a41827f4f74b (diff)
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[Ada] Deallocation of controlled type implementing interface types
2019-12-13 Javier Miranda <miranda@adacore.com> gcc/ada/ * exp_disp.ads (Expand_Interface_Thunk): Adding one formal (the interface type). * exp_disp.adb (Expand_Interface_Thunk): Using the added formal to ensure the correct profile of the thunk generated for predefined primitives; in addition, the added formal is also used to perform a check that ensures that the controlling type of the thunk is the one expected by the GCC backend. (Make_Secondary_DT, Register_Primitive): Adding the new formal to the calls to Expand_Interface_Thunk. * exp_ch6.adb (Register_Predefined_DT_Entry): Adding the new formal to the call to Expand_Interface_Thunk. * exp_intr.adb (Expand_Unc_Deallocation): When deallocating a controlled type and the call to unchecked deallocation is performed with a pointer to one of the convered interface types, displace the pointer to the object to reference the base of the object to deallocate its memory. * gcc-interface/trans.c (maybe_make_gnu_thunk): Assert that the controlling type of the thunk is an interface type. From-SVN: r279351
Diffstat (limited to 'gcc/ada/exp_disp.ads')
-rw-r--r--gcc/ada/exp_disp.ads3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/ada/exp_disp.ads b/gcc/ada/exp_disp.ads
index 7295942..5c490df 100644
--- a/gcc/ada/exp_disp.ads
+++ b/gcc/ada/exp_disp.ads
@@ -242,7 +242,8 @@ package Exp_Disp is
procedure Expand_Interface_Thunk
(Prim : Node_Id;
Thunk_Id : out Entity_Id;
- Thunk_Code : out Node_Id);
+ Thunk_Code : out Node_Id;
+ Iface : Entity_Id);
-- Ada 2005 (AI-251): When a tagged type implements abstract interfaces we
-- generate additional subprograms (thunks) associated with each primitive
-- Prim to have a layout compatible with the C++ ABI. The thunk displaces