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author | Bob Duff <duff@adacore.com> | 2024-08-22 12:32:00 -0400 |
---|---|---|
committer | Marc Poulhiès <dkm@gcc.gnu.org> | 2024-09-03 10:15:56 +0200 |
commit | b776b08b718feb059fed80b1de6bcf280fd6f03c (patch) | |
tree | 69db0d4b5f18377491021f91b4f38a18aceea025 /gcc | |
parent | 6b1cf59e90d3d6391d61b2a8f77856b5aa044014 (diff) | |
download | gcc-b776b08b718feb059fed80b1de6bcf280fd6f03c.zip gcc-b776b08b718feb059fed80b1de6bcf280fd6f03c.tar.gz gcc-b776b08b718feb059fed80b1de6bcf280fd6f03c.tar.bz2 |
ada: Fix Finalize_Storage_Only bug in b-i-p calls
Do not pass null for the Collection parameter when
Finalize_Storage_Only is in effect. If the collection
is null in that case, we will blow up later when we
deallocate the object.
gcc/ada/
* exp_ch6.adb (Add_Collection_Actual_To_Build_In_Place_Call):
Remove Finalize_Storage_Only from the code that checks whether to
pass null to the Collection parameter. Having done that, we don't
need to check for Is_Library_Level_Entity, because
No_Heap_Finalization requires that. And if we ever change
No_Heap_Finalization to allow nested access types, we will still
want to pass null. Note that the comment "Such a type lacks a
collection." is incorrect in the case of Finalize_Storage_Only;
such types have a collection.
Diffstat (limited to 'gcc')
-rw-r--r-- | gcc/ada/exp_ch6.adb | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/gcc/ada/exp_ch6.adb b/gcc/ada/exp_ch6.adb index 3c87c0e..c868234 100644 --- a/gcc/ada/exp_ch6.adb +++ b/gcc/ada/exp_ch6.adb @@ -517,15 +517,11 @@ package body Exp_Ch6 is else Desig_Typ := Directly_Designated_Type (Ptr_Typ); - -- Check for a library-level access type whose designated type has - -- suppressed finalization or the access type is subject to pragma - -- No_Heap_Finalization. Such an access type lacks a collection. Pass - -- a null actual to callee in order to signal a missing collection. - - if Is_Library_Level_Entity (Ptr_Typ) - and then (Finalize_Storage_Only (Desig_Typ) - or else No_Heap_Finalization (Ptr_Typ)) - then + -- Check for a type that is subject to pragma No_Heap_Finalization. + -- Such a type lacks a collection. Pass a null actual to callee to + -- signal a missing collection. + + if No_Heap_Finalization (Ptr_Typ) then Actual := Make_Null (Loc); -- Types in need of finalization actions |