https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84344
Bug ID: 84344
Summary: [concepts] ICE with invalid use of auto
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Blocks: 67491
Target Milestone: ---
The following invalid code snippet triggers ICE since GCC 6.1.0
if compiled with "-fconcepts":
=====================================
template<typename> void foo() {}
template void foo<auto>();
=====================================
bug.cc: In instantiation of 'void foo() [with <template-parameter-1-1> =
auto]':
bug.cc:3:25: required from here
bug.cc:1:32: internal compiler error: Segmentation fault
template<typename> void foo() {}
^
0xeb087f crash_signal
../../gcc/gcc/toplev.c:325
0x117dff4 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3131
0x117dff4 ultimate_transparent_alias_target
../../gcc/gcc/varasm.c:1285
0x117f21e notice_global_symbol(tree_node*)
../../gcc/gcc/varasm.c:1670
0xae482a cgraph_node::finalize_function(tree_node*, bool)
../../gcc/gcc/cgraphunit.c:452
0x9a556f expand_or_defer_fn(tree_node*)
../../gcc/gcc/cp/semantics.c:4242
0x96522d instantiate_decl(tree_node*, bool, bool)
../../gcc/gcc/cp/pt.c:23419
0x98f79b instantiate_pending_templates(int)
../../gcc/gcc/cp/pt.c:23514
0x8b19fb c_parse_final_cleanups()
../../gcc/gcc/cp/decl2.c:4715
Please submit a full bug report, [etc.]
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491
[Bug 67491] [meta-bug] concepts issues
