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-rw-r--r--include/llvm/Target/TargetSchedule.td18
1 files changed, 15 insertions, 3 deletions
diff --git a/include/llvm/Target/TargetSchedule.td b/include/llvm/Target/TargetSchedule.td
index d771cdd..c55ebd8 100644
--- a/include/llvm/Target/TargetSchedule.td
+++ b/include/llvm/Target/TargetSchedule.td
@@ -22,6 +22,14 @@
//
class FuncUnit;
+//===----------------------------------------------------------------------===//
+// Pipeline bypass / forwarding - These values specifies the symbolic names of
+// pipeline bypasses which can be used to forward results of instructions
+// that are forwarded to uses.
+class Bypass;
+
+def NoBypass : Bypass;
+
class ReservationKind<bits<1> val> {
int Value = val;
}
@@ -81,22 +89,26 @@ def NoItinerary : InstrItinClass;
// instruction itinerary class (name) to its itinerary data.
//
class InstrItinData<InstrItinClass Class, list<InstrStage> stages,
- list<int> operandcycles = []> {
+ list<int> operandcycles = [],
+ list<Bypass> bypasses = []> {
InstrItinClass TheClass = Class;
list<InstrStage> Stages = stages;
list<int> OperandCycles = operandcycles;
+ list<Bypass> Bypasses = bypasses;
}
//===----------------------------------------------------------------------===//
// Processor itineraries - These values represent the set of all itinerary
// classes for a given chip set.
//
-class ProcessorItineraries<list<FuncUnit> fu, list<InstrItinData> iid> {
+class ProcessorItineraries<list<FuncUnit> fu, list<Bypass> bp,
+ list<InstrItinData> iid> {
list<FuncUnit> FU = fu;
+ list<Bypass> BP = bp;
list<InstrItinData> IID = iid;
}
// NoItineraries - A marker that can be used by processors without schedule
// info.
-def NoItineraries : ProcessorItineraries<[], []>;
+def NoItineraries : ProcessorItineraries<[], [], []>;