* [Ada] Spurious accessibility error on call in return statement
@ 2021-05-03 9:29 Pierre-Marie de Rodat
0 siblings, 0 replies; only message in thread
From: Pierre-Marie de Rodat @ 2021-05-03 9:29 UTC (permalink / raw)
To: gcc-patches; +Cc: Justin Squirek
[-- Attachment #1: Type: text/plain, Size: 530 bytes --]
This patch fixes an issue in the compiler whereby a spurious
accessibility error regarding actuals for explicitly aliased formals in
a function call within a return statement gets triggered during
compilation when the return type of the function call in question has
implicit dereference specified.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* sem_util.adb (In_Return_Value): Modified to detect when
implicit dereference is specified on the return type of a
function call within the expression being checked.
[-- Attachment #2: patch.diff --]
[-- Type: text/x-diff, Size: 813 bytes --]
diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb
--- a/gcc/ada/sem_util.adb
+++ b/gcc/ada/sem_util.adb
@@ -14329,6 +14329,17 @@ package body Sem_Util is
when N_Function_Call =>
if not In_Function_Call then
In_Function_Call := True;
+
+ -- When the function return type has implicit dereference
+ -- specified we know it cannot directly contribute to the
+ -- return value.
+
+ if Present (Etype (Par))
+ and then Has_Implicit_Dereference
+ (Get_Full_View (Etype (Par)))
+ then
+ return False;
+ end if;
else
return False;
end if;
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2021-05-03 9:29 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-05-03 9:29 [Ada] Spurious accessibility error on call in return statement Pierre-Marie de Rodat
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).