[Bug optimization/11263] New: [SPARC] wrong code with -O2 -fnew-ra : undefined content of output register o3 was used

[Bug optimization/11263] New: [SPARC] wrong code with -O2 -fnew-ra : undefined content of output register o3 was used

[heinrich dot brand at fujitsu-siemens dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11263

           Summary: [SPARC] wrong code with -O2 -fnew-ra : undefined content
                    of output register o3 was used
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: heinrich.brand@fujitsu-siemens.com
                CC: gcc-bugs@gcc.gnu.org
 GCC build triplet: SunOS 5.8 sparc
  GCC host triplet: Fujitsu GP700F-600
GCC target triplet: Fujitsu GP700F-600

A store double instruction to write an argument on the stack uses a source


register with undefined content.




int f4(int x1, double x2, double x3,double x4 , double x5){


  return x1 + x2 + x3 + x4 + x5;}


int f5( int x1, double x2, double x3, double x4, double x5){


  printf("x5: %lf\n",x5);


  return x1 + x2 + x3 + x4 + x5;}


int sum(){ 


  int s;


  s = f4(1, 1., 1., 1., 1.) + f5(1, 1., 1., 1., 1.) ;


  printf("sum: %d\n",s);


  return s;}  


main(){ return sum()!=10; }




wrong output with -O2 -fnew-ra is:


x5: 0.000000


sum: 9


1




right output is:


x5: 1.000000


sum: 10


0

[Bug optimization/11263] [SPARC] wrong code with -O2 -fnew-ra : undefined content of output register o3 was used

[ehrhardt at mathematik dot uni-ulm dot de]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11263


ehrhardt at mathematik dot uni-ulm dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.3.2

[Bug optimization/11263] [SPARC] wrong code with -O2 -fnew-ra : undefined content of output register o3 was used

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11263


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


------- Additional Comments From pinskia at physics dot uc dot edu  2003-08-05 05:55 -------
Since -fnew-ra is a new option in 3.3 and this is fixed for 3.4, I am closing this one as 
fixed.

[Bug optimization/11263] [SPARC] wrong code with -O2 -fnew-ra : undefined content of output register o3 was used

[jbuck at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11263


jbuck at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.2                       |3.4


------- Additional Comments From jbuck at gcc dot gnu dot org  2003-10-06 03:43 -------
Changing target to 3.4, as it isn't going to be fixed for 3.3.2.