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* [Bug c++/60627] New: [c++1y] ICE in explicit template instantiation containing auto parameter
@ 2014-03-23 19:47 reichelt at gcc dot gnu.org
2014-03-24 20:40 ` [Bug c++/60627] " abutcher at gcc dot gnu.org
2014-03-24 20:43 ` abutcher at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: reichelt at gcc dot gnu.org @ 2014-03-23 19:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60627
Bug ID: 60627
Summary: [c++1y] ICE in explicit template instantiation
containing auto parameter
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: diagnostic, error-recovery, ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
CC: abutcher at gcc dot gnu.org
The following invalid code snippet (compiled with "-std=c++1y")
triggers an ICE on trunk:
=========================================
template<typename T> void foo(T) {}
template void foo(auto);
void bar()
{
foo(0);
}
=========================================
bug.cc:3:23: error: template parameter list used in explicit instantiation
template void foo(auto);
^
bug.cc: In instantiation of 'void foo(T) [with T = auto:1]':
bug.cc:3:23: required from here
bug.cc:1:27: internal compiler error: in dependent_type_p, at cp/pt.c:20474
template<typename T> void foo(T) {}
^
0x602058 dependent_type_p(tree_node*)
../../gcc/gcc/cp/pt.c:20474
0x5d6450 require_complete_types_for_parms
../../gcc/gcc/cp/decl.c:10864
0x5d6450 check_function_type
../../gcc/gcc/cp/decl.c:12981
0x5d6450 start_preparsed_function(tree_node*, tree_node*, int)
../../gcc/gcc/cp/decl.c:13155
0x611ab0 instantiate_decl(tree_node*, int, bool)
../../gcc/gcc/cp/pt.c:19837
0x651427 instantiate_pending_templates(int)
../../gcc/gcc/cp/pt.c:19997
0x68c37f cp_write_global_declarations()
../../gcc/gcc/cp/decl2.c:4311
Please submit a full bug report, [etc.]
Also, the first diagnostic could be improved: It's not obvious that auto is a
template-parameter-list (and in other contexts it really isn't).
Adam, you might want to have a look at this one.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/60627] [c++1y] ICE in explicit template instantiation containing auto parameter
2014-03-23 19:47 [Bug c++/60627] New: [c++1y] ICE in explicit template instantiation containing auto parameter reichelt at gcc dot gnu.org
@ 2014-03-24 20:40 ` abutcher at gcc dot gnu.org
2014-03-24 20:43 ` abutcher at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: abutcher at gcc dot gnu.org @ 2014-03-24 20:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60627
--- Comment #1 from Adam Butcher <abutcher at gcc dot gnu.org> ---
Author: abutcher
Date: Mon Mar 24 20:40:15 2014
New Revision: 208799
URL: http://gcc.gnu.org/viewcvs?rev=208799&root=gcc&view=rev
Log:
Fix PR c++/60627
PR c++/60627
* parser.c (cp_parser_parameter_declaration_clause): Prevent 'auto' from
introducing an implicit function template parameter within an explicit
instantiation.
PR c++/60627
* g++.dg/cpp1y/pr60627.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/cpp1y/pr60627.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/parser.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/60627] [c++1y] ICE in explicit template instantiation containing auto parameter
2014-03-23 19:47 [Bug c++/60627] New: [c++1y] ICE in explicit template instantiation containing auto parameter reichelt at gcc dot gnu.org
2014-03-24 20:40 ` [Bug c++/60627] " abutcher at gcc dot gnu.org
@ 2014-03-24 20:43 ` abutcher at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: abutcher at gcc dot gnu.org @ 2014-03-24 20:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60627
Adam Butcher <abutcher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
Assignee|unassigned at gcc dot gnu.org |abutcher at gcc dot gnu.org
Target Milestone|--- |4.9.0
--- Comment #2 from Adam Butcher <abutcher at gcc dot gnu.org> ---
Fixed in 4.9.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-03-23 19:47 [Bug c++/60627] New: [c++1y] ICE in explicit template instantiation containing auto parameter reichelt at gcc dot gnu.org
2014-03-24 20:40 ` [Bug c++/60627] " abutcher at gcc dot gnu.org
2014-03-24 20:43 ` abutcher at gcc dot gnu.org
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