public inbox for gcc-cvs@sourceware.org
help / color / mirror / Atom feed
* [gcc r14-1857] ada: Fix too small secondary stack allocation for returned aggregate
@ 2023-06-15 8:03 Marc Poulhi?s
0 siblings, 0 replies; only message in thread
From: Marc Poulhi?s @ 2023-06-15 8:03 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:c8c5bf93aaa481d4b08491d4545b74e2b329d16d
commit r14-1857-gc8c5bf93aaa481d4b08491d4545b74e2b329d16d
Author: Eric Botcazou <ebotcazou@adacore.com>
Date: Sat May 13 10:55:44 2023 +0200
ada: Fix too small secondary stack allocation for returned aggregate
This restores the specific treatment of aggregates that are returned through
an extended return statement in a function returning a class-wide type, and
which was incorrectly dropped in an earlier change.
gcc/ada/
* exp_ch3.adb (Make_Allocator_For_Return): Deal again specifically
with an aggregate returned through an object of a class-wide type.
Diff:
---
gcc/ada/exp_ch3.adb | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/gcc/ada/exp_ch3.adb b/gcc/ada/exp_ch3.adb
index fbedc16ddd0..778eed7f16e 100644
--- a/gcc/ada/exp_ch3.adb
+++ b/gcc/ada/exp_ch3.adb
@@ -7167,9 +7167,20 @@ package body Exp_Ch3 is
Expression => Alloc_Expr));
else
- Alloc :=
- Make_Allocator (Loc,
- Expression => New_Occurrence_Of (Typ, Loc));
+ -- If the return object is of a class-wide type, we cannot use
+ -- its type for the allocator. Instead we use the type of the
+ -- expression, which must be an aggregate of a definite type.
+
+ if Is_Class_Wide_Type (Typ) then
+ Alloc :=
+ Make_Allocator (Loc,
+ Expression => New_Occurrence_Of (Etype (Expr), Loc));
+
+ else
+ Alloc :=
+ Make_Allocator (Loc,
+ Expression => New_Occurrence_Of (Typ, Loc));
+ end if;
-- If the return object requires default initialization, then it
-- will happen later following the elaboration of the renaming.
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-06-15 8:03 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-06-15 8:03 [gcc r14-1857] ada: Fix too small secondary stack allocation for returned aggregate Marc Poulhi?s
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).