[Bug optimization/13718] New: Miscompilation of comparison of complex values

[pbrook at gcc dot gnu dot org]

Something seems to be going wrong with the handling of complex variables. From 
looking at the tree dumps it seems SRA might be the culprit. 
 
Testcase follows. 
 
void 
foo( _Complex float * a, _Complex float * b) 
{ 
  if (*a != *b) 
        abort (); 
} 
 
int main() 
{ 
  _Complex float v; 
  v = 0; 
  foo (&v, &v); 
}

-- 
           Summary: Miscompilation of comparison of complex values
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: critical
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pbrook at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13718