[Bug c++/77790] [5/6/7 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77790 --- Comment #6 from Jason Merrill --- Author: jason Date: Sat Feb 11 17:29:45 2017 New Revision: 245358 URL: https://gcc.gnu.org/viewcvs?rev=245358=gcc=rev Log: PR c++/77790 - ICE with auto function in C++11 mode * decl.c (undeduced_auto_decl): Remove C++14 limitation. (require_deduced_type): Add complain parm, return bool. * cp-tree.h: Adjust. * decl2.c (mark_used): Use require_deduced_type. Added: trunk/gcc/testsuite/g++.dg/cpp1y/auto-fn35.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/cp-tree.h trunk/gcc/cp/decl.c trunk/gcc/cp/decl2.c trunk/gcc/testsuite/g++.dg/cpp0x/auto41.C
[Bug c++/77790] [5/6/7 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77790 Jason Merrill changed: What|Removed |Added Keywords|ice-on-valid-code |error-recovery Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org --- Comment #5 from Jason Merrill --- It's error-recovery.
[Bug c++/77790] [5/6/7 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77790 Martin Sebor changed: What|Removed |Added CC||msebor at gcc dot gnu.org --- Comment #4 from Martin Sebor --- Prior to r185768 GCC in C++ 11 mode rejected auto functions without trailing return type. With r185768 GCC would accept it with a warning (enabled by default). r207055 changed the pedantic warning into an error. In light of this, should this bug be viewed as ice-on-invalid-code (error-recovery)? Or is it ice-on-valid because it broke in GCC 5 where the code was accepted in C++ 11 mode with just a warning?
[Bug c++/77790] [5/6/7 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77790
Marek Polacek changed:
What|Removed |Added
CC||mpolacek at gcc dot gnu.org
--- Comment #3 from Marek Polacek ---
The ICE with -std=c++11 is now a bit different:
$ ./cc1plus -quiet e.cc -std=c++11
e.cc:4:44: error: ‘f’ function uses ‘auto’ type specifier without trailing
return type
template < typename T > static auto f () { return 0; }
^
e.cc:4:44: note: deduced return type only available with -std=c++14 or
-std=gnu++14
e.cc: In substitution of ‘template int A::g() [with U =
]’:
e.cc:8:26: required from here
e.cc:8:26: internal compiler error: Segmentation fault
auto a = A < int > {}.g ();
^
0xfcdf4e crash_signal
/home/marek/src/gcc/gcc/toplev.c:333
0x7867a5 check_instantiated_arg
/home/marek/src/gcc/gcc/cp/pt.c:17837
0x786d01 check_instantiated_args
/home/marek/src/gcc/gcc/cp/pt.c:17909
0x7c5326 instantiate_template_1
/home/marek/src/gcc/gcc/cp/pt.c:18009
0x7c5326 instantiate_template(tree_node*, tree_node*, int)
/home/marek/src/gcc/gcc/cp/pt.c:18113
0x7caf35 fn_type_unification(tree_node*, tree_node*, tree_node*, tree_node*
const*, unsigned int, tree_node*, unification_kind_t, int, bool, bool)
/home/marek/src/gcc/gcc/cp/pt.c:18493
0x72caff add_template_candidate_real
/home/marek/src/gcc/gcc/cp/call.c:3164
0x72d87c add_template_candidate
/home/marek/src/gcc/gcc/cp/call.c:3246
0x72d87c add_candidates
/home/marek/src/gcc/gcc/cp/call.c:5481
0x72e25f build_new_method_call_1
/home/marek/src/gcc/gcc/cp/call.c:8656
0x72e25f build_new_method_call(tree_node*, tree_node*, vec**, tree_node*, int, tree_node**, int)
/home/marek/src/gcc/gcc/cp/call.c:8856
0x84c01b cp_parser_postfix_expression
/home/marek/src/gcc/gcc/cp/parser.c:6989
0x849954 cp_parser_unary_expression
/home/marek/src/gcc/gcc/cp/parser.c:8100
0x853e87 cp_parser_cast_expression
/home/marek/src/gcc/gcc/cp/parser.c:8777
0x85441d cp_parser_binary_expression
/home/marek/src/gcc/gcc/cp/parser.c:8878
0x854ce0 cp_parser_assignment_expression
/home/marek/src/gcc/gcc/cp/parser.c:9165
0x8550f7 cp_parser_constant_expression
/home/marek/src/gcc/gcc/cp/parser.c:9435
0x8558e4 cp_parser_initializer_clause
/home/marek/src/gcc/gcc/cp/parser.c:21543
0x8572d3 cp_parser_initializer
/home/marek/src/gcc/gcc/cp/parser.c:21483
0x866996 cp_parser_init_declarator
/home/marek/src/gcc/gcc/cp/parser.c:19329
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[Bug c++/77790] [5/6/7 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77790 Richard Biener changed: What|Removed |Added Priority|P3 |P2
[Bug c++/77790] [5/6/7 Regression] ICE on valid C++14 code when compiling with "-std=c++11": in push_access_scope, at cp/pt.c:227
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77790 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org, ||jason at gcc dot gnu.org Target Milestone|--- |5.5 Summary|ICE on valid C++14 code |[5/6/7 Regression] ICE on |when compiling with |valid C++14 code when |"-std=c++11": in|compiling with |push_access_scope, at |"-std=c++11": in |cp/pt.c:227 |push_access_scope, at ||cp/pt.c:227 --- Comment #2 from Jakub Jelinek --- Started with I think r198099 (r198096 with -std=c++0x just warns, r198101 already ICEs).
