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* [Bug ada/107536] New: [12 regression] Wrong 'not referenced' warning on renamed variable
@ 2022-11-05 17:00 simon at pushface dot org
2022-11-07 7:01 ` [Bug ada/107536] [12/13 " rguenth at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: simon at pushface dot org @ 2022-11-05 17:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107536
Bug ID: 107536
Summary: [12 regression] Wrong 'not referenced' warning on
renamed variable
Product: gcc
Version: 12.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ada
Assignee: unassigned at gcc dot gnu.org
Reporter: simon at pushface dot org
Target Milestone: ---
Created attachment 53834
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53834&action=edit
Demonstrator
If a record has aspect Volatile_Full_Access, a renaming of one of the record’s
components will be reported as unreferenced even though it plainly is.
$ gnatmake -gnatwa -c -u -f renaming.adb -gnatl
gcc -c -gnatwa -gnatl renaming.adb
GNAT 12.2.0
Copyright 1992-2022, Free Software Foundation, Inc.
Compiling: renaming.adb
Source file time stamp: 2022-11-05 16:48:11
Compiled at: 2022-11-05 16:50:40
1. procedure Renaming is
2.
3. type T is record
4. Item : Integer;
5. end record;
6. A_T : T;
7. Item : Integer renames A_T.Item;
8.
9. type VFA_T is record
10. Item : Integer;
11. end record
12. with Volatile_Full_Access;
13. A_VFA_T : VFA_T;
14. VFA_Item : Integer renames A_VFA_T.Item;
|
>>> warning: renamed variable "VFA_Item" is not referenced [-gnatwu]
15.
16. begin
17. Item := 42;
18. VFA_Item := 42;
19. end Renaming;
19 lines: No errors, 1 warning
This is also present on 12.1.0.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/107536] [12/13 regression] Wrong 'not referenced' warning on renamed variable
2022-11-05 17:00 [Bug ada/107536] New: [12 regression] Wrong 'not referenced' warning on renamed variable simon at pushface dot org
@ 2022-11-07 7:01 ` rguenth at gcc dot gnu.org
2022-11-08 11:29 ` simon at pushface dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-11-07 7:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107536
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.3
Summary|[12 regression] Wrong 'not |[12/13 regression] Wrong
|referenced' warning on |'not referenced' warning on
|renamed variable |renamed variable
Keywords| |diagnostic
Priority|P3 |P4
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/107536] [12/13 regression] Wrong 'not referenced' warning on renamed variable
2022-11-05 17:00 [Bug ada/107536] New: [12 regression] Wrong 'not referenced' warning on renamed variable simon at pushface dot org
2022-11-07 7:01 ` [Bug ada/107536] [12/13 " rguenth at gcc dot gnu.org
@ 2022-11-08 11:29 ` simon at pushface dot org
2023-05-08 12:25 ` [Bug ada/107536] [12/13/14 " rguenth at gcc dot gnu.org
2023-05-11 15:49 ` ebotcazou at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: simon at pushface dot org @ 2022-11-08 11:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107536
--- Comment #1 from simon at pushface dot org ---
Also present in GCC 13-20221030.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/107536] [12/13/14 regression] Wrong 'not referenced' warning on renamed variable
2022-11-05 17:00 [Bug ada/107536] New: [12 regression] Wrong 'not referenced' warning on renamed variable simon at pushface dot org
2022-11-07 7:01 ` [Bug ada/107536] [12/13 " rguenth at gcc dot gnu.org
2022-11-08 11:29 ` simon at pushface dot org
@ 2023-05-08 12:25 ` rguenth at gcc dot gnu.org
2023-05-11 15:49 ` ebotcazou at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-05-08 12:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107536
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|12.3 |12.4
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 12.3 is being released, retargeting bugs to GCC 12.4.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/107536] [12/13/14 regression] Wrong 'not referenced' warning on renamed variable
2022-11-05 17:00 [Bug ada/107536] New: [12 regression] Wrong 'not referenced' warning on renamed variable simon at pushface dot org
` (2 preceding siblings ...)
2023-05-08 12:25 ` [Bug ada/107536] [12/13/14 " rguenth at gcc dot gnu.org
@ 2023-05-11 15:49 ` ebotcazou at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2023-05-11 15:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107536
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Last reconfirmed| |2023-05-11
Ever confirmed|0 |1
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
The variable is macro-substituted and indeed fools the warning.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2023-05-11 15:49 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2022-11-05 17:00 [Bug ada/107536] New: [12 regression] Wrong 'not referenced' warning on renamed variable simon at pushface dot org
2022-11-07 7:01 ` [Bug ada/107536] [12/13 " rguenth at gcc dot gnu.org
2022-11-08 11:29 ` simon at pushface dot org
2023-05-08 12:25 ` [Bug ada/107536] [12/13/14 " rguenth at gcc dot gnu.org
2023-05-11 15:49 ` ebotcazou at gcc dot gnu.org
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