https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68045
Bug ID: 68045
Summary: [concepts] segfault in contains_struct_check
../../gcc/gcc/tree.h:2971
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ryan.burn at gmail dot com
Target Milestone: ---
Created attachment 36560
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36560&action=edit
preprocessed code
The attached code gives this stack trace:
rnburn@localhost ~/bugs/contains_struct_check_segfault $ c++17
contains_struct_check_segfault.cpp
In file included from
/home/rnburn/proj/echo/parallel/include/echo/parallel/invoke_create.h:3:0,
from
/home/rnburn/proj/echo/parallel/unittest/invoke_create.cpp:1:
/home/rnburn/proj/echo/parallel/include/echo/parallel/concept.h: In function
‘void ____C_A_T_C_H____T_E_S_T____6()’:
/home/rnburn/proj/echo/parallel/include/echo/parallel/concept.h:63:61: internal
compiler error: Segmentation fault
uncvref_t<decltype(functors_rest())>>()...>();
^
0xcacfef crash_signal
../../gcc/gcc/toplev.c:352
0x67833e contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
../../gcc/gcc/tree.h:2971
0x67833e tsubst_copy
../../gcc/gcc/cp/pt.c:13490
0x67f202 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:16238
0x6813f8 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:15712
0x661a6c tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc/gcc/cp/pt.c:13138
0x67cd12 tsubst_template_args
../../gcc/gcc/cp/pt.c:10839
0x6621c1 tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc/gcc/cp/pt.c:12829
0x6623bf tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc/gcc/cp/pt.c:12452
0x67cd12 tsubst_template_args
../../gcc/gcc/cp/pt.c:10839
0x67fafb tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:15230
0x6813f8 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:15712
0x66aad1 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/gcc/cp/pt.c:15044
0x67a71e tsubst_pack_expansion(tree_node*, tree_node*, int, tree_node*)
../../gcc/gcc/cp/pt.c:10675
0x67d04a tsubst_template_args
../../gcc/gcc/cp/pt.c:10803
0x67fafb tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:15230
0x6813f8 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:15712
0x66aad1 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/gcc/cp/pt.c:15044
0x823207 satisfy_predicate_constraint
../../gcc/gcc/cp/constraint.cc:1694
0x823207 satisfy_constraint_1
../../gcc/gcc/cp/constraint.cc:1898
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with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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