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* [Bug tree-optimization/23384] New: Clobber list should be flow sensitive
@ 2005-08-14  6:17 pinskia at gcc dot gnu dot org
  2005-08-31 16:04 ` [Bug tree-optimization/23384] " pinskia at gcc dot gnu dot org
  0 siblings, 1 reply; 2+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-14  6:17 UTC (permalink / raw)
  To: gcc-bugs

Take the following code:
struct f
{
  int i;
  int j;
};
void g(void);
void i(struct f*);

int kk(void)
{
  struct f a;
  int j;
  a.i = 1;
  a.j =2 ;
  g();
  j = a.i;
  i(&a);
  return j;
}

---
j should be changed to 1 as the address of a is not escape until after the call to i so g should not get a 
call clobbered for the SFT's of a.

-- 
           Summary: Clobber list should be flow sensitive
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23384


^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug tree-optimization/23384] Clobber list should be flow sensitive
  2005-08-14  6:17 [Bug tree-optimization/23384] New: Clobber list should be flow sensitive pinskia at gcc dot gnu dot org
@ 2005-08-31 16:04 ` pinskia at gcc dot gnu dot org
  0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-31 16:04 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-31 16:03 -------
Confirmed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-08-31 16:03:31
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23384


^ permalink raw reply	[flat|nested] 2+ messages in thread
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2005-08-14  6:17 [Bug tree-optimization/23384] New: Clobber list should be flow sensitive pinskia at gcc dot gnu dot org
2005-08-31 16:04 ` [Bug tree-optimization/23384] " pinskia at gcc dot gnu dot org

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