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* [Bug c++/99120] New: ICE in -Wshadow in templated member function
@ 2021-02-16 17:28 maeriberii+gcc at gmail dot com
2021-02-16 17:37 ` [Bug c++/99120] [8/9/10/11 Regression] " mpolacek at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: maeriberii+gcc at gmail dot com @ 2021-02-16 17:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Bug ID: 99120
Summary: ICE in -Wshadow in templated member function
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: maeriberii+gcc at gmail dot com
Target Milestone: ---
Created attachment 50202
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50202&action=edit
Minimal test case
Minimal test case attached.
Does not trigger ICE when member function is not templated.
Versions of GCC tested: 8.3, 11.1, current master (72d78655a9)
Systems tested on: AArch64 Linux, x86-64 macOS
Complete command line that triggers the bug: g++ -Wshadow a.cpp
Compiler output:
void ARM64XEmitter::MOVI2RImpl()
/Users/mary/Workspace/dolphin/test/a.cpp:10:7: internal compiler error:
Segmentation fault: 11
10 | MOVZ,
| ^~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
Appears to be caused by a nullptr dereference at name-lookup.c:3319.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10/11 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
@ 2021-02-16 17:37 ` mpolacek at gcc dot gnu.org
2021-02-16 17:39 ` mpolacek at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-02-16 17:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
CC| |mpolacek at gcc dot gnu.org
Target Milestone|--- |8.5
Last reconfirmed| |2021-02-16
Summary|ICE in -Wshadow in |[8/9/10/11 Regression] ICE
|templated member function |in -Wshadow in templated
| |member function
Keywords| |ice-on-valid-code
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r214357.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10/11 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
2021-02-16 17:37 ` [Bug c++/99120] [8/9/10/11 Regression] " mpolacek at gcc dot gnu.org
@ 2021-02-16 17:39 ` mpolacek at gcc dot gnu.org
2021-02-16 17:40 ` mpolacek at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-02-16 17:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10/11 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
2021-02-16 17:37 ` [Bug c++/99120] [8/9/10/11 Regression] " mpolacek at gcc dot gnu.org
2021-02-16 17:39 ` mpolacek at gcc dot gnu.org
@ 2021-02-16 17:40 ` mpolacek at gcc dot gnu.org
2021-03-05 22:56 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-02-16 17:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org
Status|NEW |ASSIGNED
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10/11 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
` (2 preceding siblings ...)
2021-02-16 17:40 ` mpolacek at gcc dot gnu.org
@ 2021-03-05 22:56 ` cvs-commit at gcc dot gnu.org
2021-03-05 22:57 ` [Bug c++/99120] [8/9/10 " mpolacek at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-03-05 22:56 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:
https://gcc.gnu.org/g:c2e64c33d9d903f0a52565ad98300feea0ffc580
commit r11-7535-gc2e64c33d9d903f0a52565ad98300feea0ffc580
Author: Marek Polacek <polacek@redhat.com>
Date: Fri Mar 5 10:41:41 2021 -0500
c++: ICE with -Wshadow and enumerator in template [PR99120]
We crash here, because in a template, an enumerator doesn't have
a type until we've called finish_enum_value_list. But our -Wshadow
implementation, check_local_shadow, is called when we pushdecl in
build_enumerator, which takes place before finish_enum_value_list.
gcc/cp/ChangeLog:
PR c++/99120
* name-lookup.c (check_local_shadow): Check if the type of decl
is non-null before checking TYPE_PTR*.
gcc/testsuite/ChangeLog:
PR c++/99120
* g++.dg/warn/Wshadow-17.C: New test.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
` (3 preceding siblings ...)
2021-03-05 22:56 ` cvs-commit at gcc dot gnu.org
@ 2021-03-05 22:57 ` mpolacek at gcc dot gnu.org
2021-04-09 22:38 ` cvs-commit at gcc dot gnu.org
2021-04-09 22:38 ` mpolacek at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-03-05 22:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[8/9/10/11 Regression] ICE |[8/9/10 Regression] ICE in
|in -Wshadow in templated |-Wshadow in templated
|member function |member function
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed on trunk so far.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
` (4 preceding siblings ...)
2021-03-05 22:57 ` [Bug c++/99120] [8/9/10 " mpolacek at gcc dot gnu.org
@ 2021-04-09 22:38 ` cvs-commit at gcc dot gnu.org
2021-04-09 22:38 ` mpolacek at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-04-09 22:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Marek Polacek
<mpolacek@gcc.gnu.org>:
https://gcc.gnu.org/g:c7d7c15540d5173f76b570bd457e866f09a17722
commit r10-9686-gc7d7c15540d5173f76b570bd457e866f09a17722
Author: Marek Polacek <polacek@redhat.com>
Date: Fri Mar 5 10:41:41 2021 -0500
c++: ICE with -Wshadow and enumerator in template [PR99120]
We crash here, because in a template, an enumerator doesn't have
a type until we've called finish_enum_value_list. But our -Wshadow
implementation, check_local_shadow, is called when we pushdecl in
build_enumerator, which takes place before finish_enum_value_list.
gcc/cp/ChangeLog:
PR c++/99120
* name-lookup.c (check_local_shadow): Check if the type of decl
is non-null before checking TYPE_PTR*.
gcc/testsuite/ChangeLog:
PR c++/99120
* g++.dg/warn/Wshadow-17.C: New test.
(cherry picked from commit c2e64c33d9d903f0a52565ad98300feea0ffc580)
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/99120] [8/9/10 Regression] ICE in -Wshadow in templated member function
2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
` (5 preceding siblings ...)
2021-04-09 22:38 ` cvs-commit at gcc dot gnu.org
@ 2021-04-09 22:38 ` mpolacek at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2021-04-09 22:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99120
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed in GCC 10.4 too.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2021-02-16 17:28 [Bug c++/99120] New: ICE in -Wshadow in templated member function maeriberii+gcc at gmail dot com
2021-02-16 17:37 ` [Bug c++/99120] [8/9/10/11 Regression] " mpolacek at gcc dot gnu.org
2021-02-16 17:39 ` mpolacek at gcc dot gnu.org
2021-02-16 17:40 ` mpolacek at gcc dot gnu.org
2021-03-05 22:56 ` cvs-commit at gcc dot gnu.org
2021-03-05 22:57 ` [Bug c++/99120] [8/9/10 " mpolacek at gcc dot gnu.org
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2021-04-09 22:38 ` mpolacek at gcc dot gnu.org
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