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* [Bug debug/45973] New: NRVO gives incorrect location
@ 2010-10-11 22:00 tromey at gcc dot gnu.org
2010-10-11 22:05 ` [Bug debug/45973] " pinskia at gcc dot gnu.org
2010-10-11 22:16 ` tromey at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: tromey at gcc dot gnu.org @ 2010-10-11 22:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45973
Summary: NRVO gives incorrect location
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: tromey@gcc.gnu.org
This test case comes from gdb bugzilla.
class foo
{
public:
int bar;
~foo(){};
};
foo f()
{
foo x;
x.bar = 1;
x.bar = x.bar;
return x;
};
int main()
{
f();
};
Compile with -g. Then, look at 'x' in the DWARF. I see:
<3><cf>: Abbrev Number: 15 (DW_TAG_variable)
<d0> DW_AT_name : x
<d2> DW_AT_decl_file : 1
<d3> DW_AT_decl_line : 10
<d4> DW_AT_type : <0x29>
<d8> DW_AT_location : 1 byte block: 52 (DW_OP_reg2)
I think this is missing a DW_OP_deref.
That is, I think reg2 points to the object, it doesn't hold the object.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug debug/45973] NRVO gives incorrect location
2010-10-11 22:00 [Bug debug/45973] New: NRVO gives incorrect location tromey at gcc dot gnu.org
@ 2010-10-11 22:05 ` pinskia at gcc dot gnu.org
2010-10-11 22:16 ` tromey at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2010-10-11 22:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45973
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2010-10-11 22:05:17 UTC ---
I think this is the same as PR 44731.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug debug/45973] NRVO gives incorrect location
2010-10-11 22:00 [Bug debug/45973] New: NRVO gives incorrect location tromey at gcc dot gnu.org
2010-10-11 22:05 ` [Bug debug/45973] " pinskia at gcc dot gnu.org
@ 2010-10-11 22:16 ` tromey at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: tromey at gcc dot gnu.org @ 2010-10-11 22:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45973
Tom Tromey <tromey at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
--- Comment #2 from Tom Tromey <tromey at gcc dot gnu.org> 2010-10-11 22:16:06 UTC ---
Thanks. I thought there was another bug for this, but I didn't find it.
*** This bug has been marked as a duplicate of bug 44731 ***
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-10-11 22:16 UTC | newest]
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-- links below jump to the message on this page --
2010-10-11 22:00 [Bug debug/45973] New: NRVO gives incorrect location tromey at gcc dot gnu.org
2010-10-11 22:05 ` [Bug debug/45973] " pinskia at gcc dot gnu.org
2010-10-11 22:16 ` tromey at gcc dot gnu.org
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