Add a default NoItinerary class for targets to use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25670 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/TargetSchedule.td b/lib/Target/TargetSchedule.td
index 89118446a5fe061255a5e98dcde76f27c13a73b7..8ac537f977a1266555833f545566170b0e1f9f42 100644 (file)
--- a/lib/Target/TargetSchedule.td
+++ b/lib/Target/TargetSchedule.td
@@ -47,6 +47,7 @@ class InstrStage<int cycles, list<FuncUnit> units> {
 // instruction information.
 //
 class InstrItinClass;
+def NoItinerary : InstrItinClass;
 
 //===----------------------------------------------------------------------===//
 // Instruction itinerary data - These values provide a runtime map of an