gcm moment to allow reduce-slf in CPU code without worry

hercules_opt/src/gcm.rs

@@ -883,6 +883,13 @@ fn spill_clones(
                         init == *b
                             && editor.func().schedules[a.idx()].contains(&Schedule::ParallelReduce)
                     })
+                    .unwrap_or(false)
+                && !editor.func().nodes[a.idx()]
+                    .try_phi()
+                    .map(|(_, data)| {
+                        data.contains(b)
+                            && editor.func().schedules[a.idx()].contains(&Schedule::ParallelReduce)
+                    })
                     .unwrap_or(false))
     });
 

juno_samples/rodinia/srad/src/cpu.sch

@@ -29,6 +29,8 @@ fixpoint {
 }
 simpl!(*);
 fork-interchange[0, 1](loop1);
+reduce-slf(*);
+simpl!(*);
 
 fork-split(*);
 unforkify(*);