double a,b,c,d,e,f;
// int  a,b,c,d,e,f;

void foo()
{
   e = b*c/d;
   f = b/d*a;
}

Compile with -O3 -ffast-math, b/d should be CSEed.


-- 
           Summary: missing CSE of division (lack of reassociation)
           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=35289

Reply via email to