* [Ada] Fix internal error on function returning dynamically-sized type
@ 2023-11-16 17:36 Eric Botcazou
0 siblings, 0 replies; only message in thread
From: Eric Botcazou @ 2023-11-16 17:36 UTC (permalink / raw)
To: gcc-patches
[-- Attachment #1: Type: text/plain, Size: 625 bytes --]
This is PR ada/109881, a tree sharing issue for the internal return type
synthesized for a function returning a dynamically-sized type and taking an
Out or In/Out parameter passed by copy.
Tested on x86-64/Linux, applied on mainline, 13 and 12 branches.
2023-11-16 Eric Botcazou <ebotcazou@adacore.com>
PR ada/109881
* gcc-interface/decl.cc (gnat_to_gnu_subprog_type): Also create a
TYPE_DECL for the return type built for the CI/CO mechanism.
2023-11-16 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/varsize4.ads, gnat.dg/varsize4.adb: New test.
* gnat.dg/varsize4_pkg.ads: New helper.
--
Eric Botcazou
[-- Attachment #2: p.diff --]
[-- Type: text/x-patch, Size: 689 bytes --]
diff --git a/gcc/ada/gcc-interface/decl.cc b/gcc/ada/gcc-interface/decl.cc
index 95fa508c559..9c7f6840e21 100644
--- a/gcc/ada/gcc-interface/decl.cc
+++ b/gcc/ada/gcc-interface/decl.cc
@@ -6329,6 +6329,12 @@ gnat_to_gnu_subprog_type (Entity_Id gnat_subprog, bool definition,
if (debug_info_p)
rest_of_record_type_compilation (gnu_cico_return_type);
+
+ /* Declare it now since it will never be declared otherwise. This
+ is necessary to ensure that its subtrees are properly marked. */
+ create_type_decl (TYPE_NAME (gnu_cico_return_type),
+ gnu_cico_return_type,
+ true, debug_info_p, gnat_subprog);
}
gnu_return_type = gnu_cico_return_type;
[-- Attachment #3: varsize4.adb --]
[-- Type: text/x-adasrc, Size: 336 bytes --]
-- { dg-do compile }
package body Varsize4 is
function Func (bytes_read : out Natural) return Arr is
Ret : Arr := (others => False);
begin
return Ret;
end;
function Get return Natural is
Data : Arr;
Bytes : Natural;
begin
Data := Func (Bytes);
return Bytes;
end;
end Varsize4;
[-- Attachment #4: varsize4.ads --]
[-- Type: text/x-adasrc, Size: 144 bytes --]
with Varsize4_Pkg;
package Varsize4 is
type Arr is array (1 .. Varsize4_Pkg.F) of Boolean;
function Get return Natural;
end Varsize4;
[-- Attachment #5: varsize4_pkg.ads --]
[-- Type: text/x-adasrc, Size: 74 bytes --]
package Varsize4_Pkg is
function F return Natural;
end Varsize4_Pkg;
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-11-16 17:40 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-11-16 17:36 [Ada] Fix internal error on function returning dynamically-sized type Eric Botcazou
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).