[AArch64] Initial sched model for Neoverse N3 (#106371)

References:

* Arm Neoverse N3 Software Optimization Guide
* Arm A64 Instruction Set for A-profile architecture

Author: FLZ101

llvm/lib/Target/AArch64/AArch64.td

@@ -113,6 +113,7 @@ include "AArch64SchedAmpere1.td"
 include "AArch64SchedAmpere1B.td"
 include "AArch64SchedNeoverseN1.td"
 include "AArch64SchedNeoverseN2.td"
+include "AArch64SchedNeoverseN3.td"
 include "AArch64SchedNeoverseV1.td"
 include "AArch64SchedNeoverseV2.td"
 include "AArch64SchedOryon.td"

llvm/lib/Target/AArch64/AArch64Processors.td

@@ -1107,7 +1107,7 @@ def : ProcessorModel<"cortex-a720", NeoverseN2Model, ProcessorFeatures.A720,
                      [TuneA720]>;
 def : ProcessorModel<"cortex-a720ae", NeoverseN2Model, ProcessorFeatures.A720AE,
                      [TuneA720AE]>;
-def : ProcessorModel<"cortex-a725", NeoverseN2Model, ProcessorFeatures.A725,
+def : ProcessorModel<"cortex-a725", NeoverseN3Model, ProcessorFeatures.A725,
                      [TuneA725]>;
 def : ProcessorModel<"cortex-r82", CortexA55Model, ProcessorFeatures.R82,
                      [TuneR82]>;
@@ -1132,7 +1132,7 @@ def : ProcessorModel<"neoverse-n1", NeoverseN1Model,
 def : ProcessorModel<"neoverse-n2", NeoverseN2Model,
                      ProcessorFeatures.NeoverseN2, [TuneNeoverseN2]>;
 def : ProcessorAlias<"cobalt-100", "neoverse-n2">;
-def : ProcessorModel<"neoverse-n3", NeoverseN2Model,
+def : ProcessorModel<"neoverse-n3", NeoverseN3Model,
                      ProcessorFeatures.NeoverseN3, [TuneNeoverseN3]>;
 def : ProcessorModel<"neoverse-512tvb", NeoverseV1Model,
                      ProcessorFeatures.Neoverse512TVB, [TuneNeoverse512TVB]>;