------- Comment #13 from hjl at lucon dot org 2007-06-02 02:00 ------- (In reply to comment #11) > (In reply to comment #10) > > I will try to track down which checkin causes this. > No need, it was just the addition of DCE. So what is happening now is that > DCE > removes the other use of the multiply so reassiocation can happen and then > reassiocation just happens to make it worse than it was before. >
Has anyone measured impact of adding DCE on SPEC CPU 2000/2006 peformance? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32183
