327       bool IsDef = false;  member
502     if (ED.IsDef)  in operator <<()
1163         ED.IsDef = true;  in recordExtender()
1183         ED.IsDef = true;  in recordExtender()
1188         ED.IsDef = true;  in recordExtender()
1192         ED.IsDef = true;  in recordExtender()
1274     if (!ED.IsDef)  in assignInits()
1294     if (ED.IsDef)  in assignInits()
1850   assert((!ED.IsDef || ED.Rd.Reg != 0) && "Missing Rd for def");  in replaceInstr()
1875   if (ED.IsDef && Diff != 0) {  in replaceInstr()
1889   if (Diff != 0 && Replaced && ED.IsDef) {  in replaceInstr()