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* [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs
@ 2007-05-28 17:07 reichelt at gcc dot gnu dot org
2007-05-28 17:07 ` [Bug c++/32128] " reichelt at gcc dot gnu dot org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2007-05-28 17:07 UTC (permalink / raw)
To: gcc-bugs
The following invalid code snippet triggers an ICE on mainline:
========================================================
template<typename...> struct A;
template<typename...T, typename...U> struct A<T..., U...> {};
A<int> a;
========================================================
bug.cc:3: error: parameter pack argument 'T ...' must be at the end of the
template argument list
bug.cc:5: internal compiler error: in unify, at cp/pt.c:12654
Please submit a full bug report, [etc.]
--
Summary: [4.3 regression] ICE on variadic template with two
parameter packs
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, error-recovery, 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=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/32128] [4.3 regression] ICE on variadic template with two parameter packs
2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
@ 2007-05-28 17:07 ` reichelt at gcc dot gnu dot org
2007-06-29 18:37 ` mmitchel at gcc dot gnu dot org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2007-05-28 17:07 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=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/32128] [4.3 regression] ICE on variadic template with two parameter packs
2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
2007-05-28 17:07 ` [Bug c++/32128] " reichelt at gcc dot gnu dot org
@ 2007-06-29 18:37 ` mmitchel at gcc dot gnu dot org
2007-08-29 22:04 ` chris dot fairles at gmail dot com
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-06-29 18:37 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/32128] [4.3 regression] ICE on variadic template with two parameter packs
2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
2007-05-28 17:07 ` [Bug c++/32128] " reichelt at gcc dot gnu dot org
2007-06-29 18:37 ` mmitchel at gcc dot gnu dot org
@ 2007-08-29 22:04 ` chris dot fairles at gmail dot com
2007-11-06 14:39 ` dgregor at gcc dot gnu dot org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: chris dot fairles at gmail dot com @ 2007-08-29 22:04 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 779 bytes --]
------- Comment #1 from chris dot fairles at gmail dot com 2007-08-29 22:04 -------
Not sure if this is same bug:
template<int I, typename... T>
struct B;
template<int I>
struct B<I> {};
template<int I, typename H, typename... T>
struct B<I,H,T...> : public B<I+1,T...> {
H h;
};
template <typename... T>
class D : B<0,T...> {};
template<int I, typename T>
struct E;
template<int I, typename... T, typename... U>
struct E<I,D<T...,U...>> {
typedef decltype(D<T...,U...>::template B<I,U...>::h) type;
};
int main() {
E<1,D<int,double,float>>::type d = 4.5;
}
test2.cpp: In function int main():
test2.cpp:24: internal compiler error: in unify, at cp/pt.c:12873
Please submit a full bug report,
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/32128] [4.3 regression] ICE on variadic template with two parameter packs
2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-08-29 22:04 ` chris dot fairles at gmail dot com
@ 2007-11-06 14:39 ` dgregor at gcc dot gnu dot org
2007-11-06 14:43 ` dgregor at gcc dot gnu dot org
2007-11-11 21:27 ` reichelt at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-11-06 14:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from dgregor at gcc dot gnu dot org 2007-11-06 14:38 -------
Subject: Bug 32128
Author: dgregor
Date: Tue Nov 6 14:37:56 2007
New Revision: 129928
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129928
Log:
2007-11-06 Douglas Gregor <doug.gregor@gmail.com>
PR c++/31439
PR c++/32114
PR c++/32115
PR c++/32125
PR c++/32126
PR c++/32127
PR c++/32128
PR c++/32253
PR c++/32566
* typeck.c (check_return_expr): Pass address of retval to
check_for_bare_parameter_packs.
* class.c (build_base_field): Tolerate bases that have no layout
due to errors.
(end_of_base): Ditto.
* tree.c (canonical_type_variant): Be careful with
ERROR_MARK_NODE.
* cp-tree.h (check_for_bare_parameter_packs): Now accepts a
tree*.
* pt.c (find_parameter_pack_data): Add set_packs_to_error field,
which states whether parameter packs should be replaced with
ERROR_MARK_NODE.
(find_parameter_packs_r): Pass addresses to cp_walk_tree wherever
possible. If set_packs_to_error is set true, replace the parameter
pack with ERROR_MARK_NODE. Manage our own pointer sets.
(uses_parameter_packs): Don't set parameter packs to
ERROR_MARK_NODE.
(check_for_bare_parameter_packs): Now takes a pointer to a tree,
which may be modified (if it is a parameter pack). Instructs
find_parameter_packs_r to replace parameter packs with
ERROR_MARK_NODE (so that they won't cause errors later on).
(process_template_parm): Pass pointer to
check_for_bare_parameter_packs.
(process_partial_specialization): Replace pack expansions before
the end of the template argument list with ERROR_MARK_NODE.
(push_template_decl_real): Pass pointer to
check_for_bare_parameter_packs. Replace parameter packs not at the
end of the template parameter list with ERROR_MARK_NODE.
(convert_template_argument): Be more careful about using DECL_NAME
on only declarations.
(unify): Can't unify against ERROR_MARK_NODE.
* semantics.c (finish_cond): Pass pointer to
check_for_bare_parameter_packs.
(finish_expr_stmt): Ditto.
(finish_for_expr): Ditto.
(finish_switch_cond): Pass pointer to
check_for_bare_parameter_packs, and call it before we put the
condition into the statement.
(finish_mem_initializers): Pass pointer to
check_for_bare_parameter_packs.
(finish_member_declaration): Ditto.
* parser.c (cp_parser_base_clause): Ditto.
2007-11-06 Douglas Gregor <doug.gregor@gmail.com>
* testsuite/g++.dg/parser/crash36.C: Tweak expected errors.
* testsuite/g++.dg/cpp0x/pr31439.C: New.
* testsuite/g++.dg/cpp0x/pr32114.C: New.
* testsuite/g++.dg/cpp0x/pr32115.C: New.
* testsuite/g++.dg/cpp0x/pr32125.C: New.
* testsuite/g++.dg/cpp0x/pr32126.C: New.
* testsuite/g++.dg/cpp0x/pr32127.C: New.
* testsuite/g++.dg/cpp0x/pr32128.C: New.
* testsuite/g++.dg/cpp0x/pr32253.C: New.
* testsuite/g++.dg/cpp0x/pr32566.C: New.
* testsuite/g++.dg/cpp0x/pr31445.C: Tweak expected errors.
* testsuite/g++.dg/cpp0x/pr31438.C: Ditto.
* testsuite/g++.dg/cpp0x/variadic81.C: Ditto.
* testsuite/g++.dg/cpp0x/pr31432.C: Ditto.
* testsuite/g++.dg/cpp0x/pr31442.C: Ditto.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/pr31439.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32114.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32115.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32125.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32126.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32127.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32128.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32253.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr32566.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/class.c
trunk/gcc/cp/cp-tree.h
trunk/gcc/cp/parser.c
trunk/gcc/cp/pt.c
trunk/gcc/cp/semantics.c
trunk/gcc/cp/tree.c
trunk/gcc/cp/typeck.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/cpp0x/pr31432.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31438.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31442.C
trunk/gcc/testsuite/g++.dg/cpp0x/pr31445.C
trunk/gcc/testsuite/g++.dg/cpp0x/variadic81.C
trunk/gcc/testsuite/g++.dg/parse/crash36.C
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/32128] [4.3 regression] ICE on variadic template with two parameter packs
2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
` (3 preceding siblings ...)
2007-11-06 14:39 ` dgregor at gcc dot gnu dot org
@ 2007-11-06 14:43 ` dgregor at gcc dot gnu dot org
2007-11-11 21:27 ` reichelt at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: dgregor at gcc dot gnu dot org @ 2007-11-06 14:43 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from dgregor at gcc dot gnu dot org 2007-11-06 14:43 -------
Fixed
--
dgregor at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/32128] [4.3 regression] ICE on variadic template with two parameter packs
2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
` (4 preceding siblings ...)
2007-11-06 14:43 ` dgregor at gcc dot gnu dot org
@ 2007-11-11 21:27 ` reichelt at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2007-11-11 21:27 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from reichelt at gcc dot gnu dot org 2007-11-11 21:27 -------
The testcase from comment #1 still crashes, but this problem is tracked in
PR34069.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32128
^ permalink raw reply [flat|nested] 7+ messages in thread
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2007-05-28 17:07 [Bug c++/32128] New: [4.3 regression] ICE on variadic template with two parameter packs reichelt at gcc dot gnu dot org
2007-05-28 17:07 ` [Bug c++/32128] " reichelt at gcc dot gnu dot org
2007-06-29 18:37 ` mmitchel at gcc dot gnu dot org
2007-08-29 22:04 ` chris dot fairles at gmail dot com
2007-11-06 14:39 ` dgregor at gcc dot gnu dot org
2007-11-06 14:43 ` dgregor at gcc dot gnu dot org
2007-11-11 21:27 ` reichelt at gcc dot gnu dot org
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