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* [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template
@ 2014-12-23 12:04 lh_mouse at 126 dot com
2015-01-01 16:17 ` [Bug c++/64382] " ville.voutilainen at gmail dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: lh_mouse at 126 dot com @ 2014-12-23 12:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64382
Bug ID: 64382
Summary: ICE due to use of `this` inside a lambda that captures
everything by ref inside a member function of a class
template
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: lh_mouse at 126 dot com
template<typename T>
struct my_queue {
void push(T){
}
void ice(){
trav([&](auto &&v){ push(v); });
}
template<typename F>
void trav(F &&f){
f(T());
}
};
template class my_queue<int>;
---------------------------------------------------------
E:\Desktop>g++ -c test.cpp -std=c++14
test.cpp: In lambda function:
test.cpp:6:29: internal compiler error: Segmentation fault
trav([&](auto &&v){ push(v); });
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://sourceforge.net/projects/mingw-w64> for instructions.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/64382] ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template
2014-12-23 12:04 [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template lh_mouse at 126 dot com
@ 2015-01-01 16:17 ` ville.voutilainen at gmail dot com
2015-01-01 16:18 ` ville.voutilainen at gmail dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: ville.voutilainen at gmail dot com @ 2015-01-01 16:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64382
Ville Voutilainen <ville.voutilainen at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ville.voutilainen at gmail dot com
--- Comment #1 from Ville Voutilainen <ville.voutilainen at gmail dot com> ---
*** Bug 64466 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/64382] ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template
2014-12-23 12:04 [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template lh_mouse at 126 dot com
2015-01-01 16:17 ` [Bug c++/64382] " ville.voutilainen at gmail dot com
@ 2015-01-01 16:18 ` ville.voutilainen at gmail dot com
2015-03-09 23:47 ` abutcher at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: ville.voutilainen at gmail dot com @ 2015-01-01 16:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64382
Ville Voutilainen <ville.voutilainen at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-01-01
Ever confirmed|0 |1
--- Comment #2 from Ville Voutilainen <ville.voutilainen at gmail dot com> ---
Clang accepts the code.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/64382] ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template
2014-12-23 12:04 [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template lh_mouse at 126 dot com
2015-01-01 16:17 ` [Bug c++/64382] " ville.voutilainen at gmail dot com
2015-01-01 16:18 ` ville.voutilainen at gmail dot com
@ 2015-03-09 23:47 ` abutcher at gcc dot gnu.org
2015-03-09 23:58 ` abutcher at gcc dot gnu.org
2015-04-13 23:07 ` abutcher at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: abutcher at gcc dot gnu.org @ 2015-03-09 23:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64382
Adam Butcher <abutcher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |abutcher at gcc dot gnu.org
--- Comment #3 from Adam Butcher <abutcher at gcc dot gnu.org> ---
This looks like a dup of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61636
Explicitly specifying 'this->' in the call to 'push' works around it.
I get the same backtrace for this bug as I do in my work tree for the repro of
61636:
gcc/testsuite/g++.dg/cpp1y/pr64382.C|10 col 11| internal compiler error:
Segmentation fault
|| push(v);
|| ^
|| 0xcc3e9f crash_signal
|| ../../gcc/toplev.c:383
|| 0xa0ad38 contains_struct_check
|| ../../gcc/tree.h:2959
|| 0xa0ad38 size_binop_loc(unsigned int, tree_code, tree_node*, tree_node*)
|| ../../gcc/fold-const.c:1755
|| 0xacdcd9 gimplify_compound_lval
|| ../../gcc/gimplify.c:2035
"component_ref_for_field_offset (t)" (where t is '__closure->__this') is
returning NULL for some reason. Haven't tracked down why yet.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/64382] ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template
2014-12-23 12:04 [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template lh_mouse at 126 dot com
` (2 preceding siblings ...)
2015-03-09 23:47 ` abutcher at gcc dot gnu.org
@ 2015-03-09 23:58 ` abutcher at gcc dot gnu.org
2015-04-13 23:07 ` abutcher at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: abutcher at gcc dot gnu.org @ 2015-03-09 23:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64382
Adam Butcher <abutcher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #4 from Adam Butcher <abutcher at gcc dot gnu.org> ---
Marking as dup of 61636.
*** This bug has been marked as a duplicate of bug 61636 ***
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/64382] ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template
2014-12-23 12:04 [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template lh_mouse at 126 dot com
` (3 preceding siblings ...)
2015-03-09 23:58 ` abutcher at gcc dot gnu.org
@ 2015-04-13 23:07 ` abutcher at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: abutcher at gcc dot gnu.org @ 2015-04-13 23:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64382
Adam Butcher <abutcher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |abutcher at gcc dot gnu.org
--- Comment #5 from Adam Butcher <abutcher at gcc dot gnu.org> ---
Patch submitted to gcc-patches along with pr61636.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-04-13 23:07 UTC | newest]
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2014-12-23 12:04 [Bug c++/64382] New: ICE due to use of `this` inside a lambda that captures everything by ref inside a member function of a class template lh_mouse at 126 dot com
2015-01-01 16:17 ` [Bug c++/64382] " ville.voutilainen at gmail dot com
2015-01-01 16:18 ` ville.voutilainen at gmail dot com
2015-03-09 23:47 ` abutcher at gcc dot gnu.org
2015-03-09 23:58 ` abutcher at gcc dot gnu.org
2015-04-13 23:07 ` abutcher at gcc dot gnu.org
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