let MispredictPenalty = 8; // Based on estimate of pipeline depth.
let Itineraries = CortexA9Itineraries;
+
+ // FIXME: Many vector operations were never given an itinerary. We
+ // haven't mapped these to the new model either.
+ let CompleteModel = 0;
}
//===----------------------------------------------------------------------===//
// Define each kind of processor resource and number available.
+//
+// The AGU unit has BufferSize=1 so that the latency between operations
+// that use it are considered to stall other operations.
+//
+// The FP unit has BufferSize=0 so that it is a hard dispatch
+// hazard. No instruction may be dispatched while the unit is reserved.
let SchedModel = CortexA9Model in {
def A9UnitALU : ProcResource<2>;
def A9UnitMul : ProcResource<1> { let Super = A9UnitALU; }
-def A9UnitAGU : ProcResource<1>;
+def A9UnitAGU : ProcResource<1> { let BufferSize = 1; }
def A9UnitLS : ProcResource<1>;
def A9UnitFP : ProcResource<1> { let BufferSize = 0; }
def A9UnitB : ProcResource<1>;
// ...
// VHADD/VRHADD/VQADD/VTST/VADH/VRADH
def :ItinRW<[A9WriteV4, A9Read2, A9Read2], [IIC_VBINi4D, IIC_VBINi4Q]>;
+
// VSBH/VRSBH/VHSUB/VQSUB/VABD/VCEQ/VCGE/VCGT/VMAX/VMIN/VPMAX/VPMIN/VABDL
def :ItinRW<[A9WriteV4, A9Read2], [IIC_VSUBi4D, IIC_VSUBi4Q]>;
// VQNEG/VQABS