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* [Bug c++/111682] New: valgrind error in tsubst_template_decl
@ 2023-10-03 16:43 dcb314 at hotmail dot com
2023-10-04 13:28 ` [Bug c++/111682] " ppalka at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: dcb314 at hotmail dot com @ 2023-10-03 16:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111682
Bug ID: 111682
Summary: valgrind error in tsubst_template_decl
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Recent gcc trunk, built with valgrind, when given this C++ source code
from the clang testsuite:
template<typename T> struct A {
template<typename U> struct B;
template<typename U> struct B<U*>;
};
template<typename T> template<typename U> struct A<T>::B<U*> {};
template struct A<int>;
A<int>::B<int*> b;
template<typename T> struct B {
template<typename U> static const int var1;
template<typename U> static const int var1<U*>;
template<typename U> static const int var2;
};
template<typename T> template<typename U> const int B<T>::var1<U*> = 1;
template<typename T> template<typename U> const int B<T>::var2<U*> = 1;
template struct B<int>;
int b_test1[B<int>::var1<int*>];
int b_test2[B<int>::var2<int*>];
does this:
$ ~/gcc/results.20230927.valgrind/bin/gcc -c -w
./SemaTemplate/instantiate-partial-spec.cpp
==33844== Invalid read of size 2
==33844== at 0x8CCA6B: tsubst_template_decl(tree_node*, tree_node*, int,
tree_node*, tree_node*) (pt.cc:14684)
==33844== by 0x8B4469: tsubst_decl(tree_node*, tree_node*, int, bool)
(pt.cc:14933)
==33844== by 0x8CE78B: most_specialized_partial_spec(tree_node*, int, bool)
(pt.cc:26255)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111682] valgrind error in tsubst_template_decl
2023-10-03 16:43 [Bug c++/111682] New: valgrind error in tsubst_template_decl dcb314 at hotmail dot com
@ 2023-10-04 13:28 ` ppalka at gcc dot gnu.org
2024-01-10 10:26 ` [Bug c++/111682] [14 regression] " rguenth at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-10-04 13:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111682
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-10-04
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot gnu.org
Target Milestone|--- |14.0
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
Keywords| |ice-on-valid-code
CC| |ppalka at gcc dot gnu.org
--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Likely started with r14-3160-gca2676654736e6, before which we rejected the
testcase.
With --enable-checking GCC trunk ICEs on the testcase for me:
<stdin>:16:56: internal compiler error: tree check: expected var_decl or
function_decl or field_decl or type_decl or concept_decl or template_decl, have
ggc_freed in tsubst_template_decl, at cp/pt.cc:14686
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111682] [14 regression] valgrind error in tsubst_template_decl
2023-10-03 16:43 [Bug c++/111682] New: valgrind error in tsubst_template_decl dcb314 at hotmail dot com
2023-10-04 13:28 ` [Bug c++/111682] " ppalka at gcc dot gnu.org
@ 2024-01-10 10:26 ` rguenth at gcc dot gnu.org
2024-02-16 17:45 ` cvs-commit at gcc dot gnu.org
2024-02-16 17:46 ` ppalka at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-01-10 10:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111682
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Version|unknown |14.0
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111682] [14 regression] valgrind error in tsubst_template_decl
2023-10-03 16:43 [Bug c++/111682] New: valgrind error in tsubst_template_decl dcb314 at hotmail dot com
2023-10-04 13:28 ` [Bug c++/111682] " ppalka at gcc dot gnu.org
2024-01-10 10:26 ` [Bug c++/111682] [14 regression] " rguenth at gcc dot gnu.org
@ 2024-02-16 17:45 ` cvs-commit at gcc dot gnu.org
2024-02-16 17:46 ` ppalka at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-02-16 17:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111682
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:c95dc611a6203f0564722975acff4ad866b9c45e
commit r14-9035-gc95dc611a6203f0564722975acff4ad866b9c45e
Author: Patrick Palka <ppalka@redhat.com>
Date: Fri Feb 16 12:44:27 2024 -0500
c++: add fixed testcase [PR111682]
Fixed by the PR113612 fix r14-8960-g19ac327de421fe.
PR c++/111682
gcc/testsuite/ChangeLog:
* g++.dg/cpp1y/var-templ86.C: New test.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111682] [14 regression] valgrind error in tsubst_template_decl
2023-10-03 16:43 [Bug c++/111682] New: valgrind error in tsubst_template_decl dcb314 at hotmail dot com
` (2 preceding siblings ...)
2024-02-16 17:45 ` cvs-commit at gcc dot gnu.org
@ 2024-02-16 17:46 ` ppalka at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: ppalka at gcc dot gnu.org @ 2024-02-16 17:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111682
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=113612
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Incidentally fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2023-10-03 16:43 [Bug c++/111682] New: valgrind error in tsubst_template_decl dcb314 at hotmail dot com
2023-10-04 13:28 ` [Bug c++/111682] " ppalka at gcc dot gnu.org
2024-01-10 10:26 ` [Bug c++/111682] [14 regression] " rguenth at gcc dot gnu.org
2024-02-16 17:45 ` cvs-commit at gcc dot gnu.org
2024-02-16 17:46 ` ppalka at gcc dot gnu.org
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