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* [Bug c++/55226] New: [C++11] ICE regression in regard to anonymous unions and constexpr @ 2012-11-07 7:45 daniel.kruegler at googlemail dot com 2012-11-07 10:52 ` [Bug c++/55226] [4.8 Regression] " paolo.carlini at oracle dot com ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: daniel.kruegler at googlemail dot com @ 2012-11-07 7:45 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55226 Bug #: 55226 Summary: [C++11] ICE regression in regard to anonymous unions and constexpr Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: daniel.kruegler@googlemail.com The following code gives me now a regressive ICE when switching from my previous gcc 4.8 (last successfully tested: 4.8.0 20121014 (experimental)) to gcc 4.8.0 20121104 (experimental) using the compiler flags -Wall -pedantic -std=c++11 //---------------------- template<class T> struct optional_data { union { unsigned char for_value_init_; T value_; }; constexpr optional_data() : for_value_init_() {} }; struct ncnm { ncnm(ncnm&&) = delete; ncnm(const ncnm&) = delete; }; int main() { optional_data<ncnm> o; // #20 } //---------------------- "In function 'int main()':| 20|internal compiler error: in gimplify_init_ctor_eval, at gimplify.c:3787| " A tentative guess is that this could have been a side-effect of the fix applied to bug 54922. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/55226] [4.8 Regression] ICE regression in regard to anonymous unions and constexpr 2012-11-07 7:45 [Bug c++/55226] New: [C++11] ICE regression in regard to anonymous unions and constexpr daniel.kruegler at googlemail dot com @ 2012-11-07 10:52 ` paolo.carlini at oracle dot com 2012-11-07 11:16 ` paolo at gcc dot gnu.org 2012-11-07 11:16 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2012-11-07 10:52 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55226 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-11-07 Blocks| |54922 Summary|[C++11] ICE regression in |[4.8 Regression] ICE |regard to anonymous unions |regression in regard to |and constexpr |anonymous unions and | |constexpr Ever Confirmed|0 |1 --- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-11-07 10:52:16 UTC --- I'm going to revert for now the fix for 54922. This one is essentially just a duplicate of that one, simply trying to use the user defined type: class nullable_int { bool init_; union { unsigned char for_value_init; int value_; }; public: constexpr nullable_int() : init_(false), for_value_init() {} }; int main() { nullable_int n; } ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/55226] [4.8 Regression] ICE regression in regard to anonymous unions and constexpr 2012-11-07 7:45 [Bug c++/55226] New: [C++11] ICE regression in regard to anonymous unions and constexpr daniel.kruegler at googlemail dot com 2012-11-07 10:52 ` [Bug c++/55226] [4.8 Regression] " paolo.carlini at oracle dot com @ 2012-11-07 11:16 ` paolo at gcc dot gnu.org 2012-11-07 11:16 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo at gcc dot gnu.org @ 2012-11-07 11:16 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55226 --- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2012-11-07 11:15:48 UTC --- Author: paolo Date: Wed Nov 7 11:15:40 2012 New Revision: 193292 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193292 Log: /cp 2012-11-07 Paolo Carlini <paolo.carlini@oracle.com> PR c++/55226 Revert: 2012-10-23 Paolo Carlini <paolo.carlini@oracle.com> PR c++/54922 * semantics.c (cx_check_missing_mem_inits): Handle anonymous union members. /testsuite 2012-11-07 Paolo Carlini <paolo.carlini@oracle.com> PR c++/55226 Revert: 2012-10-23 Paolo Carlini <paolo.carlini@oracle.com> PR c++/54922 * g++.dg/cpp0x/constexpr-union4.C: New. Removed: trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-union4.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/semantics.c trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/55226] [4.8 Regression] ICE regression in regard to anonymous unions and constexpr 2012-11-07 7:45 [Bug c++/55226] New: [C++11] ICE regression in regard to anonymous unions and constexpr daniel.kruegler at googlemail dot com 2012-11-07 10:52 ` [Bug c++/55226] [4.8 Regression] " paolo.carlini at oracle dot com 2012-11-07 11:16 ` paolo at gcc dot gnu.org @ 2012-11-07 11:16 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2012-11-07 11:16 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55226 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |paolo.carlini at oracle dot | |com Resolution| |DUPLICATE --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-11-07 11:16:37 UTC --- See PR54922. *** This bug has been marked as a duplicate of bug 54922 *** ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-11-07 11:16 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-11-07 7:45 [Bug c++/55226] New: [C++11] ICE regression in regard to anonymous unions and constexpr daniel.kruegler at googlemail dot com 2012-11-07 10:52 ` [Bug c++/55226] [4.8 Regression] " paolo.carlini at oracle dot com 2012-11-07 11:16 ` paolo at gcc dot gnu.org 2012-11-07 11:16 ` paolo.carlini at oracle dot com
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