[Bug c++/19317] [4.0 Regression] forgets to deep-copy temporary return value

[pinskia at gcc dot gnu dot org]

-- 
   What|Removed |Added

   Priority|P2  |P1
Summary|forgets to deep-copy|[4.0 Regression] forgets to
   |temporary return value  |deep-copy temporary return
   ||value
   Target Milestone|--- |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19317

[Bug c++/19317] [4.0 Regression] forgets to deep-copy temporary return value

[pinskia at gcc dot gnu dot org]

--- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-07 
19:26 ---
Hmm,
  a = b (a, D.1613);

I think the problem is that we cannot remove the tempory return value for this 
testcase.
Here is another testcase which is related testcase:
extern C void abort( void );

struct A
{
A() { d = d2 = 0; width = -1; }
A( int _w ) : d( 0 ), d2( 0 ), width( _w ) {}

A  b( ) const;
int d;
int d2;
int width;
};

A A::b( ) const
{
A tmp;
tmp.width = 10+this-width;
return tmp;
}

int main()
{
A a( 100 );
a = a.b();
if ( a.width != 110 )
   abort();
}

-- 
   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever Confirmed||1
  Known to fail||4.0.0
  Known to work||3.4.0
   Last reconfirmed|-00-00 00:00:00 |2005-01-07 19:26:28
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19317