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* [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const
@ 2014-07-29 8:19 stuff at trez dot name
2014-07-29 9:03 ` [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] " redi at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: stuff at trez dot name @ 2014-07-29 8:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
Bug ID: 61946
Summary: rope construction, passing allocator referenct without
const
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: stuff at trez dot name
Include file ext/rope of libstdc++ in revision 124427, there was a change with
passing allocator through in-template functions, in my interest is constructor:
rope(char_producer<_CharT> *, size_t, bool, const allocator_type& )
which calls _S_new_RopeFunction, the change was with adding reference to 4
parameter:
from:
_S_new_RopeFunction(char_producer<_CharT>* __f, size_t __size, bool __d,
allocator_type __a
to:
_S_new_RopeFunction(char_producer<_CharT>* __f, size_t __size, bool __d,
allocator_type& __a
and it makes problem with compilation of example code:
#include <ext/rope>
class empty_char_prod : public __gnu_cxx::char_producer<char>
{
public:
virtual void operator()(size_t start_pos, size_t len, char* buffer)
{}
};
int main ()
{
empty_char_prod* ecp = new empty_char_prod;
__gnu_cxx::crope excrope ( ecp, 10L, true );
return 0;
}
compilation on gcc version 4.9.1 (Debian 4.9.1-1):
/usr/include/c++/4.9/ext/rope: In instantiation of ‘__gnu_cxx::rope<_CharT,
_Alloc>::rope(__gnu_cxx::char_producer<_CharT>*, std::size_t, bool, const
allocator_type&) [with _CharT = char; _Alloc = std::allocator<char>;
std::size_t = long unsigned int; __gnu_cxx::rope<_CharT,
_Alloc>::allocator_type = std::allocator<char>]’:
./cropy.cc:17:47: required from here
/usr/include/c++/4.9/ext/rope:1880:57: error: no matching function for call to
‘__gnu_cxx::rope<char>::_S_new_RopeFunction(__gnu_cxx::char_producer<char>*&,
std::size_t&, bool&, const allocator_type&)’
0 : _S_new_RopeFunction(__fn, __len, __delete_fn, __a);
^
/usr/include/c++/4.9/ext/rope:1880:57: note: candidate is:
/usr/include/c++/4.9/ext/rope:1673:7: note: static __gnu_cxx::rope<_CharT,
_Alloc>::_RopeFunction* __gnu_cxx::rope<_CharT,
_Alloc>::_S_new_RopeFunction(__gnu_cxx::char_producer<_CharT>*, std::size_t,
bool, __gnu_cxx::rope<_CharT, _Alloc>::allocator_type&) [with _CharT = char;
_Alloc = std::allocator<char>; __gnu_cxx::rope<_CharT, _Alloc>::_RopeFunction =
__gnu_cxx::_Rope_RopeFunction<char, std::allocator<char> >; std::size_t = long
unsigned int; __gnu_cxx::rope<_CharT, _Alloc>::allocator_type =
std::allocator<char>]
_S_new_RopeFunction(char_producer<_CharT>* __f,
^
/usr/include/c++/4.9/ext/rope:1673:7: note: no known conversion for argument
4 from ‘const allocator_type {aka const std::allocator<char>}’ to
‘__gnu_cxx::rope<char>::allocator_type& {aka std::allocator<char>&}’
I thing the change should by from copy to const reference, like this:
_S_new_RopeFunction(char_producer<_CharT>* __f, size_t __size, bool __d, const
allocator_type& __a
>From gcc-bugs-return-457301-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Jul 29 08:31:48 2014
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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/61938] Vectorization not happening .
Date: Tue, 29 Jul 2014 08:31:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida938
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2014-07-29
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is the store to result[k] where k is not an affine induction
variable.
This is a "distribute" store (similar to a "gather" load). I see no sensible
way of vectorizing this, do you?
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] rope construction, passing allocator referenct without const
2014-07-29 8:19 [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const stuff at trez dot name
@ 2014-07-29 9:03 ` redi at gcc dot gnu.org
2014-07-29 17:31 ` redi at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-07-29 9:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-07-29
Known to work| |4.2.4
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Summary|rope construction, passing |[4.8/4.9/4.10 Regression]
|allocator referenct without |rope construction, passing
|const |allocator referenct without
| |const
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The correct fix is to use _M_get_allocator() to pass a non-const reference:
--- a/libstdc++-v3/include/ext/rope
+++ b/libstdc++-v3/include/ext/rope
@@ -1876,8 +1876,9 @@ protected:
const allocator_type& __a = allocator_type())
: _Base(__a)
{
- this->_M_tree_ptr = (0 == __len) ?
- 0 : _S_new_RopeFunction(__fn, __len, __delete_fn, __a);
+ this->_M_tree_ptr = (0 == __len)
+ ? 0
+ : _S_new_RopeFunction(__fn, __len, __delete_fn, _M_get_allocator());
}
rope(const rope& __x, const allocator_type& __a = allocator_type())
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] rope construction, passing allocator referenct without const
2014-07-29 8:19 [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const stuff at trez dot name
2014-07-29 9:03 ` [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] " redi at gcc dot gnu.org
@ 2014-07-29 17:31 ` redi at gcc dot gnu.org
2014-07-29 17:38 ` redi at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-07-29 17:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Jul 29 17:30:25 2014
New Revision: 213220
URL: https://gcc.gnu.org/viewcvs?rev=213220&root=gcc&view=rev
Log:
PR libstdc++/61946
* include/ext/rope (rope::rope(char_producer<_CharT>*, size_t, bool,
const allocator_type&)): Pass non-const allocator to
_S_new_RopeFunction.
* testsuite/ext/rope/61946.cc: New.
Added:
trunk/libstdc++-v3/testsuite/ext/rope/61946.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/ext/rope
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] rope construction, passing allocator referenct without const
2014-07-29 8:19 [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const stuff at trez dot name
2014-07-29 9:03 ` [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] " redi at gcc dot gnu.org
2014-07-29 17:31 ` redi at gcc dot gnu.org
@ 2014-07-29 17:38 ` redi at gcc dot gnu.org
2014-08-04 22:17 ` redi at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-07-29 17:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed on trunk so far
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] rope construction, passing allocator referenct without const
2014-07-29 8:19 [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const stuff at trez dot name
` (2 preceding siblings ...)
2014-07-29 17:38 ` redi at gcc dot gnu.org
@ 2014-08-04 22:17 ` redi at gcc dot gnu.org
2014-08-04 22:32 ` redi at gcc dot gnu.org
2014-08-04 22:34 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-08-04 22:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Aug 4 22:16:44 2014
New Revision: 213611
URL: https://gcc.gnu.org/viewcvs?rev=213611&root=gcc&view=rev
Log:
Backported from mainline
2014-07-29 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/61946
* include/ext/rope (rope::rope(char_producer<_CharT>*, size_t, bool,
const allocator_type&)): Pass non-const allocator to
_S_new_RopeFunction.
* testsuite/ext/rope/61946.cc: New.
Added:
branches/gcc-4_8-branch/libstdc++-v3/testsuite/ext/rope/61946.cc
Modified:
branches/gcc-4_8-branch/libstdc++-v3/ChangeLog
branches/gcc-4_8-branch/libstdc++-v3/include/ext/rope
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] rope construction, passing allocator referenct without const
2014-07-29 8:19 [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const stuff at trez dot name
` (3 preceding siblings ...)
2014-08-04 22:17 ` redi at gcc dot gnu.org
@ 2014-08-04 22:32 ` redi at gcc dot gnu.org
2014-08-04 22:34 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-08-04 22:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Aug 4 22:31:51 2014
New Revision: 213612
URL: https://gcc.gnu.org/viewcvs?rev=213612&root=gcc&view=rev
Log:
Backported from mainline
2014-07-29 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/61946
* include/ext/rope (rope::rope(char_producer<_CharT>*, size_t, bool,
const allocator_type&)): Pass non-const allocator to
_S_new_RopeFunction.
* testsuite/ext/rope/61946.cc: New.
Added:
branches/gcc-4_9-branch/libstdc++-v3/testsuite/ext/rope/61946.cc
Modified:
branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
branches/gcc-4_9-branch/libstdc++-v3/include/ext/rope
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug libstdc++/61946] [4.8/4.9/4.10 Regression] rope construction, passing allocator referenct without const
2014-07-29 8:19 [Bug libstdc++/61946] New: rope construction, passing allocator referenct without const stuff at trez dot name
` (4 preceding siblings ...)
2014-08-04 22:32 ` redi at gcc dot gnu.org
@ 2014-08-04 22:34 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-08-04 22:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61946
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.8.4
Known to fail| |4.3.0, 4.8.3, 4.9.1
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
fixed for 4.8.4
^ permalink raw reply [flat|nested] 7+ messages in thread
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