[Bug middle-end/35288] New: Expression reassociation problem

[xinliangli at gmail dot com]

The second instance of a1+a2 is not PREed due to missing expression
reassociation.

int foo(int a1, int a2, int a3)
{
   int b1,b2;
   b1 = a3 + a2 + a1;
   b2 = a1  + a2;
   return b1 + b2;
}


-- 
           Summary: Expression reassociation problem
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: xinliangli at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35288