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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] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 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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