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* [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer
@ 2024-04-02 10:15 Liam.Jackson@qa-systems.com
2024-04-02 14:35 ` [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410 jakub at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: Liam.Jackson@qa-systems.com @ 2024-04-02 10:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
Bug ID: 114562
Summary: ICE when trying to bind rvalue reference to lvalue
with comma operator and forwarding reference to
pointer
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: Liam.Jackson@qa-systems.com
Target Milestone: ---
Created attachment 57846
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57846&action=edit
Source to reproduce ice
Compiling the attached source would expect to raise an error such as
error: cannot bind rvalue reference of type 'const void*&&' to lvalue of type
'void* const'
Instead the following ICE occurs:
<source>: In instantiation of 'static T Create<T>::create(U&&) [with U = void*
const&; T = MyClass]':
<source>:34:28: required from here
34 | Create<MyClass>::create(MyClass::NONE);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
<source>:28:13: internal compiler error: in convert_like_internal, at
cp/call.cc:8879
28 | return T( ( (beforeParam()), (u) ) );
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x266d8bc internal_error(char const*, ...)
???:0
0xa572eb fancy_abort(char const*, int, char const*)
???:0
0xa81334 build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
???:0
0xa8265b build_special_member_call(tree_node*, tree_node*, vec<tree_node*,
va_gc, vl_embed>**, tree_node*, int, int)
???:0
0xa8ff69 perform_direct_initialization_if_possible(tree_node*, tree_node*,
bool, int)
???:0
0xd33f73 build_functional_cast(unsigned int, tree_node*, tree_node*, int)
???:0
0xc92ed3 instantiate_decl(tree_node*, bool, bool)
???:0
0xcbc0ab instantiate_pending_templates(int)
???:0
0xb5a619 c_parse_final_cleanups()
???:0
0xdaf328 c_common_parse_file()
???:0
It may be possible to construct an example source which is expected to compile
successfully yet still triggers this ICE. This has not been explored.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
@ 2024-04-02 14:35 ` jakub at gcc dot gnu.org
2024-04-02 14:50 ` jason at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu.org @ 2024-04-02 14:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.5
Priority|P3 |P2
Summary|ICE when trying to bind |[11/12/13/14 Regression]
|rvalue reference to lvalue |ICE when trying to bind
|with comma operator and |rvalue reference to lvalue
|forwarding reference to |with comma operator and
|pointer |forwarding reference to
| |pointer since r10-7410
Ever confirmed|0 |1
CC| |jakub at gcc dot gnu.org
Last reconfirmed| |2024-04-02
Status|UNCONFIRMED |NEW
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started to ICE with r10-7410-g72809d6fe8e085440403ce125c51d01d6e7512b0
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
2024-04-02 14:35 ` [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410 jakub at gcc dot gnu.org
@ 2024-04-02 14:50 ` jason at gcc dot gnu.org
2024-04-02 18:11 ` cvs-commit at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jason at gcc dot gnu.org @ 2024-04-02 14:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org
Status|NEW |ASSIGNED
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
2024-04-02 14:35 ` [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410 jakub at gcc dot gnu.org
2024-04-02 14:50 ` jason at gcc dot gnu.org
@ 2024-04-02 18:11 ` cvs-commit at gcc dot gnu.org
2024-05-01 20:31 ` [Bug c++/114562] [11/12/13 " cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-04-02 18:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Jason Merrill <jason@gcc.gnu.org>:
https://gcc.gnu.org/g:5d7e9a35024f065b25f61747859c7cb7a770c92b
commit r14-9757-g5d7e9a35024f065b25f61747859c7cb7a770c92b
Author: Jason Merrill <jason@redhat.com>
Date: Tue Apr 2 10:52:28 2024 -0400
c++: binding reference to comma expr [PR114561]
We represent a reference binding where the referent type is more qualified
by a ck_ref_bind around a ck_qual. We performed the ck_qual and then tried
to undo it with STRIP_NOPS, but that doesn't work if the conversion is
buried in COMPOUND_EXPR. So instead let's avoid performing that fake
conversion in the first place.
PR c++/114561
PR c++/114562
gcc/cp/ChangeLog:
* call.cc (convert_like_internal): Avoid adding qualification
conversion in direct reference binding.
gcc/testsuite/ChangeLog:
* g++.dg/conversion/ref10.C: New test.
* g++.dg/conversion/ref11.C: New test.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12/13 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
` (2 preceding siblings ...)
2024-04-02 18:11 ` cvs-commit at gcc dot gnu.org
@ 2024-05-01 20:31 ` cvs-commit at gcc dot gnu.org
2024-05-24 13:26 ` [Bug c++/114562] [11/12 " cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-05-01 20:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:7bc362ea61e5bf552356aa862beb7845fe50a47c
commit r13-8668-g7bc362ea61e5bf552356aa862beb7845fe50a47c
Author: Jason Merrill <jason@redhat.com>
Date: Tue Apr 2 10:52:28 2024 -0400
c++: binding reference to comma expr [PR114561]
We represent a reference binding where the referent type is more qualified
by a ck_ref_bind around a ck_qual. We performed the ck_qual and then tried
to undo it with STRIP_NOPS, but that doesn't work if the conversion is
buried in COMPOUND_EXPR. So instead let's avoid performing that fake
conversion in the first place.
PR c++/114561
PR c++/114562
gcc/cp/ChangeLog:
* call.cc (convert_like_internal): Avoid adding qualification
conversion in direct reference binding.
gcc/testsuite/ChangeLog:
* g++.dg/conversion/ref10.C: New test.
* g++.dg/conversion/ref11.C: New test.
(cherry picked from commit 5d7e9a35024f065b25f61747859c7cb7a770c92b)
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
` (3 preceding siblings ...)
2024-05-01 20:31 ` [Bug c++/114562] [11/12/13 " cvs-commit at gcc dot gnu.org
@ 2024-05-24 13:26 ` cvs-commit at gcc dot gnu.org
2024-05-24 13:27 ` cvs-commit at gcc dot gnu.org
2024-05-24 13:30 ` jason at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-05-24 13:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:7076c565e22281e193aeafafbf40676426a64b75
commit r12-10466-g7076c565e22281e193aeafafbf40676426a64b75
Author: Jason Merrill <jason@redhat.com>
Date: Tue Apr 2 10:52:28 2024 -0400
c++: binding reference to comma expr [PR114561]
We represent a reference binding where the referent type is more qualified
by a ck_ref_bind around a ck_qual. We performed the ck_qual and then tried
to undo it with STRIP_NOPS, but that doesn't work if the conversion is
buried in COMPOUND_EXPR. So instead let's avoid performing that fake
conversion in the first place.
PR c++/114561
PR c++/114562
gcc/cp/ChangeLog:
* call.cc (convert_like_internal): Avoid adding qualification
conversion in direct reference binding.
gcc/testsuite/ChangeLog:
* g++.dg/conversion/ref10.C: New test.
* g++.dg/conversion/ref11.C: New test.
(cherry picked from commit 5d7e9a35024f065b25f61747859c7cb7a770c92b)
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
` (4 preceding siblings ...)
2024-05-24 13:26 ` [Bug c++/114562] [11/12 " cvs-commit at gcc dot gnu.org
@ 2024-05-24 13:27 ` cvs-commit at gcc dot gnu.org
2024-05-24 13:30 ` jason at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-05-24 13:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:
https://gcc.gnu.org/g:b35afe75674ff9f79cf9685d099bc80f10442216
commit r11-11446-gb35afe75674ff9f79cf9685d099bc80f10442216
Author: Jason Merrill <jason@redhat.com>
Date: Tue Apr 2 10:52:28 2024 -0400
c++: binding reference to comma expr [PR114561]
We represent a reference binding where the referent type is more qualified
by a ck_ref_bind around a ck_qual. We performed the ck_qual and then tried
to undo it with STRIP_NOPS, but that doesn't work if the conversion is
buried in COMPOUND_EXPR. So instead let's avoid performing that fake
conversion in the first place.
PR c++/114561
PR c++/114562
gcc/cp/ChangeLog:
* call.c (convert_like_internal): Avoid adding qualification
conversion in direct reference binding.
gcc/testsuite/ChangeLog:
* g++.dg/conversion/ref10.C: New test.
* g++.dg/conversion/ref11.C: New test.
(cherry picked from commit 5d7e9a35024f065b25f61747859c7cb7a770c92b)
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c++/114562] [11/12 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410
2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
` (5 preceding siblings ...)
2024-05-24 13:27 ` cvs-commit at gcc dot gnu.org
@ 2024-05-24 13:30 ` jason at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: jason at gcc dot gnu.org @ 2024-05-24 13:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114562
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed in 11.5/12.4/13.3/14.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2024-04-02 10:15 [Bug c++/114562] New: ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer Liam.Jackson@qa-systems.com
2024-04-02 14:35 ` [Bug c++/114562] [11/12/13/14 Regression] ICE when trying to bind rvalue reference to lvalue with comma operator and forwarding reference to pointer since r10-7410 jakub at gcc dot gnu.org
2024-04-02 14:50 ` jason at gcc dot gnu.org
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