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* [Bug c++/31431] New: [4.3 regression] ICE with invalid parameter pack
@ 2007-04-02 19:20 reichelt at gcc dot gnu dot org
2007-04-02 19:20 ` [Bug c++/31431] " reichelt at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2007-04-02 19:20 UTC (permalink / raw)
To: gcc-bugs
The following (IMHO invalid) code snippet triggers an ICE on mainline:
===========================================================
template<typename..., typename> void foo();
void bar()
{
foo<int>();
}
===========================================================
bug.cc: In function 'void bar()':
bug.cc:5: internal compiler error: tree check: expected class 'expression',
have 'type' (integer_type) in fn_type_unification, at cp/pt.c:11058
Please submit a full bug report, [etc.]
The slightly modified version below triggers a segfault:
===========================================================
template<typename, typename..., typename> void foo();
void bar()
{
foo<int>();
}
===========================================================
bug.cc: In function 'void bar()':
bug.cc:5: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]
Doug, looks like fallout from your variadic template patch.
Btw., although it's not easter yet, I found a couple of more
variadic easter eggs. They should appear on bugzilla soon. ;-)
--
Summary: [4.3 regression] ICE with invalid parameter pack
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, monitored
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31431
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31431] [4.3 regression] ICE with invalid parameter pack
2007-04-02 19:20 [Bug c++/31431] New: [4.3 regression] ICE with invalid parameter pack reichelt at gcc dot gnu dot org
@ 2007-04-02 19:20 ` reichelt at gcc dot gnu dot org
2007-04-25 16:57 ` dgregor at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2007-04-02 19:20 UTC (permalink / raw)
To: gcc-bugs
--
reichelt at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31431
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31431] [4.3 regression] ICE with invalid parameter pack
2007-04-02 19:20 [Bug c++/31431] New: [4.3 regression] ICE with invalid parameter pack reichelt at gcc dot gnu dot org
2007-04-02 19:20 ` [Bug c++/31431] " reichelt at gcc dot gnu dot org
@ 2007-04-25 16:57 ` dgregor at gcc dot gnu dot org
2007-05-25 13:16 ` dgregor at gcc dot gnu dot org
2007-05-25 17:54 ` dgregor at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-04-25 16:57 UTC (permalink / raw)
To: gcc-bugs
--
dgregor at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |dgregor at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-04-25 17:57:35
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31431
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31431] [4.3 regression] ICE with invalid parameter pack
2007-04-02 19:20 [Bug c++/31431] New: [4.3 regression] ICE with invalid parameter pack reichelt at gcc dot gnu dot org
2007-04-02 19:20 ` [Bug c++/31431] " reichelt at gcc dot gnu dot org
2007-04-25 16:57 ` dgregor at gcc dot gnu dot org
@ 2007-05-25 13:16 ` dgregor at gcc dot gnu dot org
2007-05-25 17:54 ` dgregor at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-05-25 13:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from dgregor at gcc dot gnu dot org 2007-05-25 14:15 -------
Subject: Bug 31431
Author: dgregor
Date: Fri May 25 13:15:04 2007
New Revision: 125062
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125062
Log:
2007-05-25 Douglas Gregor <doug.gregor@gmail.com>
PR c++/31431
PR c++/31432
PR c++/31434
PR c++/31435
PR c++/31437
PR c++/31438
PR c++/31442
PR c++/31443
PR c++/31444
PR c++/31445
* error.c (dump_type): Dump TYPE_ARGUMENT_PACK nodes.
* cp-tree.h (check_for_bare_parameter_packs): Returns bool.
* pt.c (check_for_bare_parameter_packs): Return bool indicated
whether everything was okay. Fix indentation.
(push_template_decl_real): Check for bare parameter packs in
function parameters; where errors occur, mark the parameter types
with ERROR_MARK_NODEs to avert ICEs.
(coerce_template_parameter_pack): New.
(coerce_template_parms): Moved parameter pack coercion into
coerce_template_parameter_pack, and permit it anywhere in the
template parameter list (not just at the end). Parameter and
argument indices can vary (somewhat) separately now, so add
PARM_IDX and ARG_IDX.
(fn_type_unification): Don't set an argument pack as incomplete if
no argument pack was deduced.
(type_unification_real): If a type parameter is a parameter pack
and has not otherwise been deduced, it will be deduced to an empty
parameter pack.
(more_specialized_fn): Use the actual lengths of the argument
lists when comparing against expansions.
* semantics.c (finish_member_declaration): If a field's type has
bare parameter packs, error and set its type to ERROR_MARK_NODE.
2007-05-25 Douglas Gregor <doug.gregor@gmail.com>
PR c++/31431
PR c++/31432
PR c++/31434
PR c++/31435
PR c++/31437
PR c++/31438
PR c++/31442
PR c++/31443
PR c++/31444
PR c++/31445
* g++.dg/cpp0x/pr31431.C: New.
* g++.dg/cpp0x/pr31437.C: New.
* g++.dg/cpp0x/pr31442.C: New.
* g++.dg/cpp0x/pr31444.C: New.
* g++.dg/cpp0x/pr31431-2.C: New.
* g++.dg/cpp0x/pr31432.C: New.
* g++.dg/cpp0x/pr31434.C: New.
* g++.dg/cpp0x/pr31438.C: New.
* g++.dg/cpp0x/pr31443.C: New.
* g++.dg/cpp0x/pr31445.C: New.
* g++.dg/cpp0x/variadic-crash1.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/pr31431-2.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31431.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31432.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31434.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31437.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31438.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31442.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31443.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31444.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31445.C
trunk/gcc/testsuite/g++.dg/cpp0x/variadic-crash1.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/cp-tree.h
trunk/gcc/cp/error.c
trunk/gcc/cp/pt.c
trunk/gcc/cp/semantics.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31431
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31431] [4.3 regression] ICE with invalid parameter pack
2007-04-02 19:20 [Bug c++/31431] New: [4.3 regression] ICE with invalid parameter pack reichelt at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-05-25 13:16 ` dgregor at gcc dot gnu dot org
@ 2007-05-25 17:54 ` dgregor at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-05-25 17:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from dgregor at gcc dot gnu dot org 2007-05-25 17:54 -------
Fixed on mainline.
--
dgregor at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31431
^ permalink raw reply [flat|nested] 5+ messages in thread
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2007-04-02 19:20 [Bug c++/31431] New: [4.3 regression] ICE with invalid parameter pack reichelt at gcc dot gnu dot org
2007-04-02 19:20 ` [Bug c++/31431] " reichelt at gcc dot gnu dot org
2007-04-25 16:57 ` dgregor at gcc dot gnu dot org
2007-05-25 13:16 ` dgregor at gcc dot gnu dot org
2007-05-25 17:54 ` dgregor at gcc dot gnu dot org
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