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* [Bug c++/98413] New: ICE with placement new
@ 2020-12-21 15:14 475647575 at qq dot com
2020-12-21 15:23 ` [Bug c++/98413] " 475647575 at qq dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: 475647575 at qq dot com @ 2020-12-21 15:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98413
Bug ID: 98413
Summary: ICE with placement new
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: 475647575 at qq dot com
Target Milestone: ---
// example program
#include <new>
struct A{
int m{};
};
template<class T>
void f(A *instance, T A::*member_pointer)
{
new (&(instance->*member_pointer)) T{0};
}
int main()
{
A a;
f(&a, &A::m);
return 0;
}
-----------------------------------
error:
<source>: In instantiation of 'void f(A*, T A::*) [with T = int]':
<source>:14:16: required from here
<source>:8:5: internal compiler error: tree check: expected integer_type or
enumeral_type or boolean_type or real_type or fixed_point_type, have
offset_type in get_offset_range, at builtins.c:5108
8 | new (&(instance->*member_pointer)) T{0};
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x1cb9849 internal_error(char const*, ...)
???:0
0x673fd7 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
???:0
0xabc5d8 compute_objsize(tree_node*, int, access_ref*, range_query*)
???:0
0x7ee121 build_new(unsigned int, vec<tree_node*, va_gc, vl_embed>**,
tree_node*, tree_node*, vec<tree_node*, va_gc, vl_embed>**, int, int)
???:0
0x90fa2f instantiate_decl(tree_node*, bool, bool)
???:0
0x950f5b instantiate_pending_templates(int)
???:0
0x7c21b9 c_parse_final_cleanups()
???:0
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
ASM generation compiler returned: 1
------------------------------------
gcc -v:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/gcc11/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ./configure --disable-multilib --prefix=/gcc11
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20201217 (experimental) (GCC)
-------------------------------------
exact gcc commit used:
https://github.com/gcc-mirror/gcc/commit/6f8486523f61bf0aa476dfa4197d1e3b71a0a8f3
This bug can be re-producted in godbolt:
https://godbolt.org/z/TeTbET
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/98413] ICE with placement new
2020-12-21 15:14 [Bug c++/98413] New: ICE with placement new 475647575 at qq dot com
@ 2020-12-21 15:23 ` 475647575 at qq dot com
2020-12-21 15:30 ` [Bug c++/98413] [11 Regression] ICE with placement new since r11-3827-g83685efd5fd1623c marxin at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: 475647575 at qq dot com @ 2020-12-21 15:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98413
--- Comment #1 from 欢乐的0403 <475647575 at qq dot com> ---
// A smaller example:
#include <new>
struct A{
int m;
};
A a;
void f(int A::*member_pointer)
{
new (&(a.*member_pointer)) int;
}
//https://godbolt.org/z/KhPq9e
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/98413] [11 Regression] ICE with placement new since r11-3827-g83685efd5fd1623c
2020-12-21 15:14 [Bug c++/98413] New: ICE with placement new 475647575 at qq dot com
2020-12-21 15:23 ` [Bug c++/98413] " 475647575 at qq dot com
@ 2020-12-21 15:30 ` marxin at gcc dot gnu.org
2020-12-23 0:28 ` msebor at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-12-21 15:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98413
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|ICE with placement new |[11 Regression] ICE with
| |placement new since
| |r11-3827-g83685efd5fd1623c
Target Milestone|--- |11.0
Status|UNCONFIRMED |NEW
CC| |marxin at gcc dot gnu.org,
| |msebor at gcc dot gnu.org
Priority|P3 |P1
Ever confirmed|0 |1
Last reconfirmed| |2020-12-21
Known to work| |10.2.0
Known to fail| |11.0
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started with r11-3827-g83685efd5fd1623c.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/98413] [11 Regression] ICE with placement new since r11-3827-g83685efd5fd1623c
2020-12-21 15:14 [Bug c++/98413] New: ICE with placement new 475647575 at qq dot com
2020-12-21 15:23 ` [Bug c++/98413] " 475647575 at qq dot com
2020-12-21 15:30 ` [Bug c++/98413] [11 Regression] ICE with placement new since r11-3827-g83685efd5fd1623c marxin at gcc dot gnu.org
@ 2020-12-23 0:28 ` msebor at gcc dot gnu.org
2020-12-23 23:38 ` cvs-commit at gcc dot gnu.org
2020-12-23 23:50 ` [Bug c++/98413] [11 Regression] ICE on placement new and member pointer msebor at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-12-23 0:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98413
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
Status|NEW |ASSIGNED
Keywords| |ice-on-valid-code
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/98413] [11 Regression] ICE with placement new since r11-3827-g83685efd5fd1623c
2020-12-21 15:14 [Bug c++/98413] New: ICE with placement new 475647575 at qq dot com
` (2 preceding siblings ...)
2020-12-23 0:28 ` msebor at gcc dot gnu.org
@ 2020-12-23 23:38 ` cvs-commit at gcc dot gnu.org
2020-12-23 23:50 ` [Bug c++/98413] [11 Regression] ICE on placement new and member pointer msebor at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-12-23 23:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98413
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:
https://gcc.gnu.org/g:fdd8560cce9f10fe5dcd26483440be136b81701d
commit r11-6328-gfdd8560cce9f10fe5dcd26483440be136b81701d
Author: Martin Sebor <msebor@redhat.com>
Date: Wed Dec 23 16:28:06 2020 -0700
PR c++/98413 - ICE on placement new and member pointer
gcc/ChangeLog:
PR c++/98413
* builtins.c (get_offset_range): Avoid non-integers/-pointers.
gcc/testsuite/ChangeLog:
PR c++/98413
* g++.dg/warn/pr98413.C: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/98413] [11 Regression] ICE on placement new and member pointer
2020-12-21 15:14 [Bug c++/98413] New: ICE with placement new 475647575 at qq dot com
` (3 preceding siblings ...)
2020-12-23 23:38 ` cvs-commit at gcc dot gnu.org
@ 2020-12-23 23:50 ` msebor at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-12-23 23:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98413
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Summary|[11 Regression] ICE with |[11 Regression] ICE on
|placement new since |placement new and member
|r11-3827-g83685efd5fd1623c |pointer
Resolution|--- |FIXED
--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
Fixed in r11-6328.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2020-12-21 15:14 [Bug c++/98413] New: ICE with placement new 475647575 at qq dot com
2020-12-21 15:23 ` [Bug c++/98413] " 475647575 at qq dot com
2020-12-21 15:30 ` [Bug c++/98413] [11 Regression] ICE with placement new since r11-3827-g83685efd5fd1623c marxin at gcc dot gnu.org
2020-12-23 0:28 ` msebor at gcc dot gnu.org
2020-12-23 23:38 ` cvs-commit at gcc dot gnu.org
2020-12-23 23:50 ` [Bug c++/98413] [11 Regression] ICE on placement new and member pointer msebor at gcc dot gnu.org
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