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+//==- AArch64SchedKryo.td - Qualcomm Kryo Scheduling Defs ---*- tablegen -*-==//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the machine model for Qualcomm Kryo to support
+// instruction scheduling and other instruction cost heuristics.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// The issue width is set to five, matching the five issue queues for expanded
+// uops. Now, the latency spreadsheet has information based on fragmented uops,
+// but these do not actually take up an issue queue.
+
+def KryoModel : SchedMachineModel {
+ let IssueWidth = 5; // 5-wide issue for expanded uops
+ let MicroOpBufferSize = 128; // Out-of-order with temporary unified issue buffer
+ let LoadLatency = 4; // Optimistic load latency
+ let MispredictPenalty = 14; // Fetch + Decode/Rename/Dispatch + Branch
+
+ // Enable partial & runtime unrolling. The magic number is chosen based on
+ // experiments and benchmarking data.
+ let LoopMicroOpBufferSize = 16;
+ let CompleteModel = 1;
+
+ list<Predicate> UnsupportedFeatures = [HasSVE];
+
+ // FIXME: Remove when all errors have been fixed.
+ let FullInstRWOverlapCheck = 0;
+}
+
+//===----------------------------------------------------------------------===//
+// Define each kind of processor resource and number available on Kryo.
+
+let SchedModel = KryoModel in {
+ def KryoUnitXA : ProcResource<1>; // Type X(A) micro-ops
+ def KryoUnitXB : ProcResource<1>; // Type X(B) micro-ops
+ def KryoUnitYA : ProcResource<1>; // Type Y(A) micro-ops
+ def KryoUnitYB : ProcResource<1>; // Type Y(B) micro-ops
+ def KryoUnitX : ProcResGroup<[KryoUnitXA, // Type X micro-ops
+ KryoUnitXB]>;
+ def KryoUnitY : ProcResGroup<[KryoUnitYA, // Type Y micro-ops
+ KryoUnitYB]>;
+ def KryoUnitXY : ProcResGroup<[KryoUnitXA, // Type XY micro-ops
+ KryoUnitXB,
+ KryoUnitYA,
+ KryoUnitYB]>;
+ def KryoUnitLSA : ProcResource<1>; // Type LS(A) micro-ops
+ def KryoUnitLSB : ProcResource<1>; // Type LS(B) micro-ops
+ def KryoUnitLS : ProcResGroup<[KryoUnitLSA, // Type LS micro-ops
+ KryoUnitLSB]>;
+}
+
+let SchedModel = KryoModel in {
+
+//===----------------------------------------------------------------------===//
+// Map the target-defined scheduler read/write resources and latency for
+// Kryo.
+
+def : WriteRes<WriteImm, [KryoUnitXY]> { let Latency = 1; }
+def : WriteRes<WriteI, [KryoUnitXY]> { let Latency = 1; }
+def : WriteRes<WriteISReg, [KryoUnitXY, KryoUnitXY]>
+ { let Latency = 2; let NumMicroOps = 2; }
+def : WriteRes<WriteIEReg, [KryoUnitXY, KryoUnitXY]>
+ { let Latency = 2; let NumMicroOps = 2; }
+def : WriteRes<WriteExtr, [KryoUnitXY, KryoUnitX]>
+ { let Latency = 2; let NumMicroOps = 2; }
+def : WriteRes<WriteIS, [KryoUnitXY]> { let Latency = 2; }
+def : WriteRes<WriteID32, [KryoUnitXA, KryoUnitY]>
+ { let Latency = 8; let NumMicroOps = 1; } // Fragent -1
+def : WriteRes<WriteID64, [KryoUnitXA, KryoUnitY]>
+ { let Latency = 8; let NumMicroOps = 1; } // Fragent -1
+def : WriteRes<WriteIM32, [KryoUnitX]> { let Latency = 5; }
+def : WriteRes<WriteIM64, [KryoUnitX]> { let Latency = 5; }
+def : WriteRes<WriteBr, [KryoUnitXY]> { let Latency = 1; }
+def : WriteRes<WriteBrReg, [KryoUnitXY]> { let Latency = 1; }
+def : WriteRes<WriteLD, [KryoUnitLS]> { let Latency = 4; }
+def : WriteRes<WriteST, [KryoUnitLS]> { let Latency = 4; }
+def : WriteRes<WriteSTP, [KryoUnitLS]> { let Latency = 4; }
+def : WriteRes<WriteAdr, [KryoUnitXY]> { let Latency = 6; }
+def : WriteRes<WriteLDIdx, [KryoUnitLS]> { let Latency = 4; }
+def : WriteRes<WriteSTIdx, [KryoUnitLS]> { let Latency = 4; }
+def : WriteRes<WriteF, [KryoUnitXY, KryoUnitXY]>
+ { let Latency = 3; let NumMicroOps = 2; }
+def : WriteRes<WriteFCmp, [KryoUnitXY]> { let Latency = 2; }
+def : WriteRes<WriteFCvt, [KryoUnitX]> { let Latency = 4; }
+def : WriteRes<WriteFCopy, [KryoUnitXY]> { let Latency = 6; }
+def : WriteRes<WriteFImm, [KryoUnitXY]> { let Latency = 6; }
+def : WriteRes<WriteFMul, [KryoUnitX, KryoUnitX]>
+ { let Latency = 6; let NumMicroOps = 2; }
+def : WriteRes<WriteFDiv, [KryoUnitXA, KryoUnitY]>
+ { let Latency = 12; let NumMicroOps = 2; } // Fragent -1 / NoRSV +1
+def : WriteRes<WriteV, [KryoUnitXY]> { let Latency = 6; }
+def : WriteRes<WriteVLD, [KryoUnitLS]> { let Latency = 4; }
+def : WriteRes<WriteVST, [KryoUnitLS]> { let Latency = 4; }
+
+def : WriteRes<WriteSys, []> { let Latency = 1; }
+def : WriteRes<WriteBarrier, []> { let Latency = 1; }
+def : WriteRes<WriteHint, []> { let Latency = 1; }
+
+def : WriteRes<WriteLDHi, []> { let Latency = 4; }
+
+def : WriteRes<WriteAtomic, []> { let Unsupported = 1; }
+
+// No forwarding logic is modelled yet.
+def : ReadAdvance<ReadI, 0>;
+def : ReadAdvance<ReadISReg, 0>;
+def : ReadAdvance<ReadIEReg, 0>;
+def : ReadAdvance<ReadIM, 0>;
+def : ReadAdvance<ReadIMA, 0>;
+def : ReadAdvance<ReadID, 0>;
+def : ReadAdvance<ReadExtrHi, 0>;
+def : ReadAdvance<ReadAdrBase, 0>;
+def : ReadAdvance<ReadVLD, 0>;
+
+
+//===----------------------------------------------------------------------===//
+// Specialize the coarse model by associating instruction groups with the
+// subtarget-defined types. As the modeled is refined, this will override most
+// of the above SchedWriteRes and SchedAlias mappings.
+
+// Miscellaneous
+// -----------------------------------------------------------------------------
+
+def : InstRW<[WriteI], (instrs COPY)>;
+
+
+// Detailed Refinedments
+// -----------------------------------------------------------------------------
+include "AArch64SchedKryoDetails.td"
+
+
+} // SchedModel = KryoModel