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* [Bug debug/54410] New: doubled DW_TAG_template_type_param
@ 2012-08-29 15:25 tromey at gcc dot gnu.org
2013-01-25 19:55 ` [Bug debug/54410] [4.6/4.7/4.8 Regression] " law at redhat dot com
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: tromey at gcc dot gnu.org @ 2012-08-29 15:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54410
Bug #: 54410
Summary: doubled DW_TAG_template_type_param
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: tromey@gcc.gnu.org
I'm using a relatively recent git gcc:
commit d789d72be457df9811328179702cab8ac5830465
Author: walt <walt@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon Aug 27 17:27:04 2012 +0000
I compiled this program, derived from a libstdc++ test case:
#include <unordered_set>
#include <string>
typedef std::unordered_set<std::string> Set;
Set m;
int main()
{
}
The DWARF shows duplicate template arguments for unordered_set.
I think each parameter name should appear just a single time:
<3><38a8>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38a9> DW_AT_name : (indirect string, offset: 0x6e7): _Value
<38ad> DW_AT_type : <0x1d44>
<3><38b1>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38b2> DW_AT_name : (indirect string, offset: 0x6f29): _Hash
<38b6> DW_AT_type : <0x379c>
<3><38ba>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38bb> DW_AT_name : (indirect string, offset: 0x9ebb): _Pred
<38bf> DW_AT_type : <0x3934>
<3><38c3>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38c4> DW_AT_name : (indirect string, offset: 0x7826): _Alloc
<38c8> DW_AT_type : <0x453a>
<3><38cc>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38cd> DW_AT_name : (indirect string, offset: 0x6e7): _Value
<38d1> DW_AT_type : <0x1d44>
<3><38d5>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38d6> DW_AT_name : (indirect string, offset: 0x6f29): _Hash
<38da> DW_AT_type : <0x379c>
<3><38de>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38df> DW_AT_name : (indirect string, offset: 0x9ebb): _Pred
<38e3> DW_AT_type : <0x3934>
<3><38e7>: Abbrev Number: 46 (DW_TAG_template_type_param)
<38e8> DW_AT_name : (indirect string, offset: 0x7826): _Alloc
<38ec> DW_AT_type : <0x453a>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/54410] [4.6/4.7/4.8 Regression] doubled DW_TAG_template_type_param
2012-08-29 15:25 [Bug debug/54410] New: doubled DW_TAG_template_type_param tromey at gcc dot gnu.org
@ 2013-01-25 19:55 ` law at redhat dot com
2013-01-31 12:02 ` aldyh at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: law at redhat dot com @ 2013-01-25 19:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54410
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at redhat dot com
Summary|doubled |[4.6/4.7/4.8 Regression]
|DW_TAG_template_type_param |doubled
| |DW_TAG_template_type_param
--- Comment #1 from Jeffrey A. Law <law at redhat dot com> 2013-01-25 19:54:54 UTC ---
Based on private email with Tom, GCC 4.5 does not emit duplicates for the
parameter while 4.6 and 4.8 (and presumably 4.7) do. Adding regression marker.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/54410] [4.6/4.7/4.8 Regression] doubled DW_TAG_template_type_param
2012-08-29 15:25 [Bug debug/54410] New: doubled DW_TAG_template_type_param tromey at gcc dot gnu.org
2013-01-25 19:55 ` [Bug debug/54410] [4.6/4.7/4.8 Regression] " law at redhat dot com
@ 2013-01-31 12:02 ` aldyh at gcc dot gnu.org
2013-01-31 16:34 ` jason at gcc dot gnu.org
2013-01-31 16:44 ` jason at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: aldyh at gcc dot gnu.org @ 2013-01-31 12:02 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54410
Aldy Hernandez <aldyh at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aldyh at gcc dot gnu.org
AssignedTo|unassigned at gcc dot |aldyh at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2013-01-31 12:01:31 UTC ---
I'll take a look. No promises, as I my knowledge of dwarf is right up there
with my knowledge of Chinese. I may spit this back into the queue in no time.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/54410] [4.6/4.7/4.8 Regression] doubled DW_TAG_template_type_param
2012-08-29 15:25 [Bug debug/54410] New: doubled DW_TAG_template_type_param tromey at gcc dot gnu.org
2013-01-25 19:55 ` [Bug debug/54410] [4.6/4.7/4.8 Regression] " law at redhat dot com
2013-01-31 12:02 ` aldyh at gcc dot gnu.org
@ 2013-01-31 16:34 ` jason at gcc dot gnu.org
2013-01-31 16:44 ` jason at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jason at gcc dot gnu.org @ 2013-01-31 16:34 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54410
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2013-01-31 16:34:07 UTC ---
Author: jason
Date: Thu Jan 31 16:33:57 2013
New Revision: 195613
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195613
Log:
PR c++/54410
* dwarf2out.c (gen_struct_or_union_type_die): Always schedule template
parameters the first time.
(gen_scheduled_generic_parms_dies): Check completeness here.
Added:
trunk/gcc/testsuite/g++.dg/debug/dwarf2/template-params-11.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/dwarf2out.c
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug debug/54410] [4.6/4.7/4.8 Regression] doubled DW_TAG_template_type_param
2012-08-29 15:25 [Bug debug/54410] New: doubled DW_TAG_template_type_param tromey at gcc dot gnu.org
` (2 preceding siblings ...)
2013-01-31 16:34 ` jason at gcc dot gnu.org
@ 2013-01-31 16:44 ` jason at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jason at gcc dot gnu.org @ 2013-01-31 16:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54410
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |jason at gcc dot gnu.org
Resolution| |FIXED
AssignedTo|aldyh at gcc dot gnu.org |jason at gcc dot gnu.org
Target Milestone|--- |4.8.0
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2013-01-31 16:43:44 UTC ---
Fixed for 4.8. I don't think this is worth backporting.
Aldy: sorry I forgot to assign this to myself yesterday.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-01-31 16:44 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2012-08-29 15:25 [Bug debug/54410] New: doubled DW_TAG_template_type_param tromey at gcc dot gnu.org
2013-01-25 19:55 ` [Bug debug/54410] [4.6/4.7/4.8 Regression] " law at redhat dot com
2013-01-31 12:02 ` aldyh at gcc dot gnu.org
2013-01-31 16:34 ` jason at gcc dot gnu.org
2013-01-31 16:44 ` jason at gcc dot gnu.org
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