[RISCV] Add SiFiveP600Model SchedModel that is used by sifive-p670 (#84962)

This PR includes an initial scheduler model shows improvement on
multiple workloads over NoSchedModel and SiFive7Model for sifive-p670.
We plan on making significant changes to this model in the future so
that it is more accurate. This patch would close
https://github.com/llvm/llvm-project/pull/80612.

3 files changed, 1024 insertions, 1 deletions

diff --git a/llvm/lib/Target/RISCV/RISCV.td b/llvm/lib/Target/RISCV/RISCV.td
index 575bd4c..22736ed 100644
--- a/llvm/lib/Target/RISCV/RISCV.td
+++ b/llvm/lib/Target/RISCV/RISCV.td
@@ -43,6 +43,7 @@ include "RISCVMacroFusion.td"
 include "RISCVSchedRocket.td"
 include "RISCVSchedSiFive7.td"
 include "RISCVSchedSiFiveP400.td"
+include "RISCVSchedSiFiveP600.td"
 include "RISCVSchedSyntacoreSCR1.td"
 include "RISCVSchedXiangShanNanHu.td"
 
diff --git a/llvm/lib/Target/RISCV/RISCVProcessors.td b/llvm/lib/Target/RISCV/RISCVProcessors.td
index 8c75df4..fd6d607 100644
--- a/llvm/lib/Target/RISCV/RISCVProcessors.td
+++ b/llvm/lib/Target/RISCV/RISCVProcessors.td
@@ -245,7 +245,7 @@ def SIFIVE_P450 : RISCVProcessorModel<"sifive-p450", SiFiveP400Model,
                                        TuneLUIADDIFusion,
                                        TuneAUIPCADDIFusion]>;
 
-def SIFIVE_P670 : RISCVProcessorModel<"sifive-p670", NoSchedModel,
+def SIFIVE_P670 : RISCVProcessorModel<"sifive-p670", SiFiveP600Model,
                                       [Feature64Bit,
                                        FeatureStdExtZifencei,
                                        FeatureStdExtM,
diff --git a/llvm/lib/Target/RISCV/RISCVSchedSiFiveP600.td b/llvm/lib/Target/RISCV/RISCVSchedSiFiveP600.td
new file mode 100644
index 0000000..5222a885
--- /dev/null
+++ b/llvm/lib/Target/RISCV/RISCVSchedSiFiveP600.td
@@ -0,0 +1,1022 @@
+//==- RISCVSchedSiFiveP600.td - SiFiveP600 Scheduling Defs ---*- tablegen -*-=//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+
+/// c is true if mx has the worst case behavior compared to LMULs in MxList.
+/// On the SiFiveP600, the worst case LMUL is the Largest LMUL
+/// and the worst case sew is the smallest SEW for that LMUL.
+class SiFiveP600IsWorstCaseMX<string mx, list<string> MxList> {
+  string LLMUL = LargestLMUL<MxList>.r;
+  bit c = !eq(mx, LLMUL);
+}
+
+class SiFiveP600IsWorstCaseMXSEW<string mx, int sew, list<string> MxList, bit isF = 0> {
+  string LLMUL = LargestLMUL<MxList>.r;
+  int SSEW = SmallestSEW<mx, isF>.r;
+  bit c = !and(!eq(mx, LLMUL), !eq(sew, SSEW));
+}
+
+// 1 Micro-Op per cycle.
+class SiFiveP600GetLMulCycles<string mx> {
+  int c = !cond(
+    !eq(mx, "M1") : 1,
+    !eq(mx, "M2") : 2,
+    !eq(mx, "M4") : 4,
+    !eq(mx, "M8") : 8,
+    !eq(mx, "MF2") : 1,
+    !eq(mx, "MF4") : 1,
+    !eq(mx, "MF8") : 1
+  );
+}
+
+// Latency for segmented loads and stores are calculated as vl * nf.
+class SiFiveP600GetCyclesSegmented<string mx, int sew, int nf> {
+  defvar VLEN = 128;
+  defvar VLUpperBound = !cond(
+    !eq(mx, "M1") : !div(VLEN, sew),
+    !eq(mx, "M2") : !div(!mul(VLEN, 2), sew),
+    !eq(mx, "M4") : !div(!mul(VLEN, 4), sew),
+    !eq(mx, "M8") : !div(!mul(VLEN, 8), sew),
+    !eq(mx, "MF2") : !div(!div(VLEN, 2), sew),
+    !eq(mx, "MF4") : !div(!div(VLEN, 4), sew),
+    !eq(mx, "MF8") : !div(!div(VLEN, 8), sew),
+  );
+  int c = !mul(VLUpperBound, nf);
+}
+
+// SiFiveP600 machine model for scheduling and other instruction cost heuristics.
+def SiFiveP600Model : SchedMachineModel {
+  let IssueWidth = 4;         // 4 micro-ops are dispatched per cycle.
+  let MicroOpBufferSize = 160; // Max micro-ops that can be buffered.
+  let LoadLatency = 4;        // Cycles for loads to access the cache.
+  let MispredictPenalty = 9;  // Extra cycles for a mispredicted branch.
+  let PostRAScheduler = true;
+  let UnsupportedFeatures = [HasStdExtZbkb, HasStdExtZbkc, HasStdExtZbkx,
+                             HasStdExtZknd, HasStdExtZkne, HasStdExtZknh,
+                             HasStdExtZksed, HasStdExtZksh, HasStdExtZkr,
+                             HasVendorXSfvqmaccqoq];
+  let CompleteModel = false;
+}
+
+let SchedModel = SiFiveP600Model in {
+
+def SiFiveP600IEXQ0       : ProcResource<1>;
+def SiFiveP600IEXQ1       : ProcResource<1>;
+def SiFiveP600IEXQ2       : ProcResource<1>;
+def SiFiveP600IEXQ3       : ProcResource<1>;
+def SiFiveP600FEXQ0       : ProcResource<1>;
+def SiFiveP600FEXQ1       : ProcResource<1>;
+
+// Two Load/Store ports that can issue either two loads, two stores, or one load
+// and one store (P550 has one load and one separate store pipe).
+def SiFiveP600LDST       : ProcResource<2>;
+
+// 4-wide pipeline with 4 ALU pipes.
+def SiFiveP600IntArith    : ProcResGroup<[SiFiveP600IEXQ0, SiFiveP600IEXQ1, SiFiveP600IEXQ2, SiFiveP600IEXQ3]>;
+defvar SiFiveP600SYS      = SiFiveP600IEXQ0;
+defvar SiFiveP600CMOV     = SiFiveP600IEXQ0;
+defvar SiFiveP600MulI2F   = SiFiveP600IEXQ1;
+def SiFiveP600Branch      : ProcResGroup<[SiFiveP600IEXQ2, SiFiveP600IEXQ3]>;
+def SiFiveP600Div         : ProcResource<1>;
+
+def SiFiveP600FloatArith  : ProcResGroup<[SiFiveP600FEXQ0, SiFiveP600FEXQ1]>;
+defvar SiFiveP600F2I      = SiFiveP600FEXQ0;
+def SiFiveP600FloatDiv    : ProcResource<1>;
+
+// Vector pipeline
+// VEXQ0 handle Mask, Simple Slide instructions,
+// VEXQ1 handle Complex Slide, Permutation, Reductions, Divide instructions.
+// Other vector instructions can be done in VEXQ0 and VEXQ1.
+def SiFiveP600VEXQ0        : ProcResource<1>;
+def SiFiveP600VEXQ1        : ProcResource<1>;
+def SiFiveP600VectorArith  : ProcResGroup<[SiFiveP600VEXQ0, SiFiveP600VEXQ1]>;
+def SiFiveP600VLD          : ProcResource<1>;
+def SiFiveP600VST          : ProcResource<1>;
+def SiFiveP600VDiv         : ProcResource<1>;
+def SiFiveP600VFloatDiv    : ProcResource<1>;
+
+// Integer arithmetic and logic
+def : WriteRes<WriteIALU, [SiFiveP600IntArith]>;
+def : WriteRes<WriteIALU32, [SiFiveP600IntArith]>;
+def : WriteRes<WriteShiftImm, [SiFiveP600IntArith]>;
+def : WriteRes<WriteShiftImm32, [SiFiveP600IntArith]>;
+def : WriteRes<WriteShiftReg, [SiFiveP600IntArith]>;
+def : WriteRes<WriteShiftReg32, [SiFiveP600IntArith]>;
+// Branching
+def : WriteRes<WriteJmp, [SiFiveP600Branch]>;
+def : WriteRes<WriteJal, [SiFiveP600Branch]>;
+def : WriteRes<WriteJalr, [SiFiveP600Branch]>;
+
+// CMOV
+def P600WriteCMOV : SchedWriteRes<[SiFiveP600Branch, SiFiveP600CMOV]> {
+  let Latency = 2;
+  let NumMicroOps = 2;
+}
+def : InstRW<[P600WriteCMOV], (instrs PseudoCCMOVGPRNoX0)>;
+
+let Latency = 3 in {
+// Integer multiplication
+def : WriteRes<WriteIMul, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteIMul32, [SiFiveP600MulI2F]>;
+// cpop[w] look exactly like multiply.
+def : WriteRes<WriteCPOP, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteCPOP32, [SiFiveP600MulI2F]>;
+}
+
+// Integer division
+def : WriteRes<WriteIDiv, [SiFiveP600MulI2F, SiFiveP600Div]> {
+  let Latency = 35;
+  let ReleaseAtCycles = [1, 34];
+}
+def : WriteRes<WriteIDiv32,  [SiFiveP600MulI2F, SiFiveP600Div]> {
+  let Latency = 20;
+  let ReleaseAtCycles = [1, 19];
+}
+
+// Integer remainder
+def : WriteRes<WriteIRem, [SiFiveP600MulI2F, SiFiveP600Div]> {
+  let Latency = 35;
+  let ReleaseAtCycles = [1, 34];
+}
+def : WriteRes<WriteIRem32, [SiFiveP600MulI2F, SiFiveP600Div]> {
+  let Latency = 20;
+  let ReleaseAtCycles = [1, 19];
+}
+
+// Bitmanip
+def : WriteRes<WriteRotateImm, [SiFiveP600IntArith]>;
+def : WriteRes<WriteRotateImm32, [SiFiveP600IntArith]>;
+def : WriteRes<WriteRotateReg, [SiFiveP600IntArith]>;
+def : WriteRes<WriteRotateReg32, [SiFiveP600IntArith]>;
+
+def : WriteRes<WriteCLZ, [SiFiveP600IntArith]>;
+def : WriteRes<WriteCLZ32, [SiFiveP600IntArith]>;
+def : WriteRes<WriteCTZ, [SiFiveP600IntArith]>;
+def : WriteRes<WriteCTZ32, [SiFiveP600IntArith]>;
+
+def : WriteRes<WriteORCB, [SiFiveP600IntArith]>;
+
+def : WriteRes<WriteREV8, [SiFiveP600IntArith]>;
+
+def : WriteRes<WriteSHXADD, [SiFiveP600IntArith]>;
+def : WriteRes<WriteSHXADD32, [SiFiveP600IntArith]>;
+
+def : WriteRes<WriteSingleBit, [SiFiveP600IntArith]>;
+def : WriteRes<WriteSingleBitImm, [SiFiveP600IntArith]>;
+def : WriteRes<WriteBEXT, [SiFiveP600IntArith]>;
+def : WriteRes<WriteBEXTI, [SiFiveP600IntArith]>;
+
+// Memory
+def : WriteRes<WriteSTB, [SiFiveP600LDST]>;
+def : WriteRes<WriteSTH, [SiFiveP600LDST]>;
+def : WriteRes<WriteSTW, [SiFiveP600LDST]>;
+def : WriteRes<WriteSTD, [SiFiveP600LDST]>;
+def : WriteRes<WriteFST16, [SiFiveP600LDST]>;
+def : WriteRes<WriteFST32, [SiFiveP600LDST]>;
+def : WriteRes<WriteFST64, [SiFiveP600LDST]>;
+
+let Latency = 4 in {
+def : WriteRes<WriteLDB, [SiFiveP600LDST]>;
+def : WriteRes<WriteLDH, [SiFiveP600LDST]>;
+}
+let Latency = 4 in {
+def : WriteRes<WriteLDW, [SiFiveP600LDST]>;
+def : WriteRes<WriteLDD, [SiFiveP600LDST]>;
+}
+
+let Latency = 6 in {
+def : WriteRes<WriteFLD16, [SiFiveP600LDST]>;
+def : WriteRes<WriteFLD32, [SiFiveP600LDST]>;
+def : WriteRes<WriteFLD64, [SiFiveP600LDST]>;
+}
+
+// Atomic memory
+let Latency = 3 in {
+def : WriteRes<WriteAtomicSTW, [SiFiveP600LDST]>;
+def : WriteRes<WriteAtomicSTD, [SiFiveP600LDST]>;
+def : WriteRes<WriteAtomicW, [SiFiveP600LDST]>;
+def : WriteRes<WriteAtomicD, [SiFiveP600LDST]>;
+def : WriteRes<WriteAtomicLDW, [SiFiveP600LDST]>;
+def : WriteRes<WriteAtomicLDD, [SiFiveP600LDST]>;
+}
+
+// Floating point
+let Latency = 2 in {
+def : WriteRes<WriteFAdd16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFAdd32, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFAdd64, [SiFiveP600FloatArith]>;
+}
+let Latency = 3 in {
+def : WriteRes<WriteFMul16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFMul32, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFMul64, [SiFiveP600FloatArith]>;
+}
+let Latency = 4 in {
+def : WriteRes<WriteFMA16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFMA32, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFMA64, [SiFiveP600FloatArith]>;
+}
+
+let Latency = 2 in {
+def : WriteRes<WriteFSGNJ16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFSGNJ32, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFSGNJ64, [SiFiveP600FloatArith]>;
+
+def : WriteRes<WriteFMinMax16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFMinMax32, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFMinMax64, [SiFiveP600FloatArith]>;
+}
+
+// Half precision.
+def : WriteRes<WriteFDiv16, [SiFiveP600FEXQ1, SiFiveP600FloatDiv]> {
+  let Latency = 4;
+  let ReleaseAtCycles = [1, 4];
+}
+def : WriteRes<WriteFSqrt16, [SiFiveP600FEXQ1, SiFiveP600FloatDiv]> {
+  let Latency = 18;
+  let ReleaseAtCycles = [1, 17];
+}
+
+// Single precision.
+def : WriteRes<WriteFDiv32, [SiFiveP600FEXQ1, SiFiveP600FloatDiv]> {
+  let Latency = 6;
+  let ReleaseAtCycles = [1, 6];
+}
+def : WriteRes<WriteFSqrt32, [SiFiveP600FEXQ1, SiFiveP600FloatDiv]> {
+  let Latency = 18;
+  let ReleaseAtCycles = [1, 17];
+}
+
+// Double precision
+def : WriteRes<WriteFDiv64, [SiFiveP600FEXQ1, SiFiveP600FloatDiv]> {
+  let Latency = 11;
+  let ReleaseAtCycles = [1, 11];
+}
+def : WriteRes<WriteFSqrt64, [SiFiveP600FEXQ1, SiFiveP600FloatDiv]> {
+  let Latency = 33;
+  let ReleaseAtCycles = [1, 32];
+}
+
+// Conversions
+let Latency = 2 in {
+def : WriteRes<WriteFCvtI32ToF16, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFCvtI32ToF32, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFCvtI32ToF64, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFCvtI64ToF16, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFCvtI64ToF32, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFCvtI64ToF64, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFCvtF16ToI32, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCvtF16ToI64, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCvtF16ToF32, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFCvtF16ToF64, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFCvtF32ToI32, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCvtF32ToI64, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCvtF32ToF16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFCvtF32ToF64, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFCvtF64ToI32, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCvtF64ToI64, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCvtF64ToF16, [SiFiveP600FloatArith]>;
+def : WriteRes<WriteFCvtF64ToF32, [SiFiveP600FloatArith]>;
+
+def : WriteRes<WriteFClass16, [SiFiveP600F2I]>;
+def : WriteRes<WriteFClass32, [SiFiveP600F2I]>;
+def : WriteRes<WriteFClass64, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCmp16, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCmp32, [SiFiveP600F2I]>;
+def : WriteRes<WriteFCmp64, [SiFiveP600F2I]>;
+def : WriteRes<WriteFMovI16ToF16, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFMovF16ToI16, [SiFiveP600F2I]>;
+def : WriteRes<WriteFMovI32ToF32, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFMovF32ToI32, [SiFiveP600F2I]>;
+def : WriteRes<WriteFMovI64ToF64, [SiFiveP600MulI2F]>;
+def : WriteRes<WriteFMovF64ToI64, [SiFiveP600F2I]>;
+}
+
+// 6. Configuration-Setting Instructions
+def : WriteRes<WriteVSETVLI, [SiFiveP600SYS]>;
+def : WriteRes<WriteVSETIVLI, [SiFiveP600SYS]>;
+def : WriteRes<WriteVSETVL, [SiFiveP600SYS]>;
+
+// 7. Vector Loads and Stores
+// FIXME: This unit is still being improved, currently
+// it is based on stage numbers. Estimates are optimistic,
+// latency may be longer.
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 8, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVLDE",    [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDM",    [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDFF",   [SiFiveP600VLD], mx, IsWorstCase>;
+  }
+  let Latency = 12, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVLDS8",   [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDS16",  [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDS32",  [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDS64",  [SiFiveP600VLD], mx, IsWorstCase>;
+  }
+  let Latency = 12, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVLDUX8",  [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDUX16", [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDUX32", [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDUX64", [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDOX8",  [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDOX16", [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDOX32", [SiFiveP600VLD], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDOX64", [SiFiveP600VLD], mx, IsWorstCase>;
+  }
+}
+
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 8, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVSTE",    [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTM",    [SiFiveP600VST], mx, IsWorstCase>;
+  }
+  let Latency = 12, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVSTS8",   [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTS16",  [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTS32",  [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTS64",  [SiFiveP600VST], mx, IsWorstCase>;
+  }
+  let Latency = 12, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVSTUX8",  [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTUX16", [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTUX32", [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTUX64", [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTOX8",  [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTOX16", [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTOX32", [SiFiveP600VST], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTOX64", [SiFiveP600VST], mx, IsWorstCase>;
+  }
+}
+
+foreach mx = SchedMxList in {
+  foreach nf=2-8 in {
+    foreach eew = [8, 16, 32, 64] in {
+      defvar LMulLat = SiFiveP600GetCyclesSegmented<mx, eew, nf>.c;
+      defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+      let Latency = !add(12, LMulLat), ReleaseAtCycles = [!add(12, LMulLat)] in {
+        defm "" : LMULWriteResMX<"WriteVLSEG" # nf # "e" # eew,   [SiFiveP600VLD], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVLSEGFF" # nf # "e" # eew, [SiFiveP600VLD], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVLSSEG" # nf # "e" # eew,  [SiFiveP600VLD], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVLUXSEG" # nf # "e" # eew, [SiFiveP600VLD], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVLOXSEG" # nf # "e" # eew, [SiFiveP600VLD], mx, IsWorstCase>;
+      }
+      let Latency = !add(1, LMulLat), ReleaseAtCycles = [!add(12, LMulLat)] in {
+        defm "" : LMULWriteResMX<"WriteVSSEG" # nf # "e" # eew,   [SiFiveP600VST], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVSSSEG" # nf # "e" # eew,  [SiFiveP600VST], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVSUXSEG" # nf # "e" # eew, [SiFiveP600VST], mx, IsWorstCase>;
+        defm "" : LMULWriteResMX<"WriteVSOXSEG" # nf # "e" # eew, [SiFiveP600VST], mx, IsWorstCase>;
+      }
+    }
+  }
+}
+
+// Whole register move/load/store
+foreach LMul = [1, 2, 4, 8] in {
+  let Latency = 8, ReleaseAtCycles = [LMul] in {
+    def : WriteRes<!cast<SchedWrite>("WriteVLD" # LMul # "R"), [SiFiveP600VLD]>;
+    def : WriteRes<!cast<SchedWrite>("WriteVST" # LMul # "R"), [SiFiveP600VST]>;
+  }
+  let Latency = LMul, ReleaseAtCycles = [LMul] in {
+    def : WriteRes<!cast<SchedWrite>("WriteVMov" # LMul # "V"), [SiFiveP600VectorArith]>;
+  }
+}
+
+// 11. Vector Integer Arithmetic Instructions
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 1, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVIALUV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIALUX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIALUI",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVExtV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVICALUV",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVICALUX",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVICALUI",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVICmpV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVICmpX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVICmpI",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMergeV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMergeX", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMergeI", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMovV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMovX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMovI",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVShiftV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVShiftX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVShiftI",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMinMaxV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMinMaxX", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMulV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMulX",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMulAddV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIMulAddX", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+// Widening
+foreach mx = SchedMxListW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListW>.c;
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVIWALUV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIWALUX",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIWALUI",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIWMulV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIWMulX",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIWMulAddV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIWMulAddX", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+
+// Worst case needs 64 cycles if SEW is equal to 64.
+foreach mx = SchedMxList in {
+  foreach sew = SchedSEWSet<mx>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxList>.c;
+    let Latency = 64, ReleaseAtCycles = [LMulLat, !mul(63, LMulLat)] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVIDivV", [SiFiveP600VEXQ1, SiFiveP600VDiv], mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVIDivX", [SiFiveP600VEXQ1, SiFiveP600VDiv], mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+// Narrowing Shift and Clips
+foreach mx = SchedMxListW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListW>.c;
+  let Latency = 2, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVNShiftV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVNShiftX", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVNShiftI", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVNClipV",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVNClipX",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVNClipI",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+
+// 12. Vector Fixed-Point Arithmetic Instructions
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVSALUV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSALUX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSALUI",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVAALUV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVAALUX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSMulV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSMulX",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSShiftV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSShiftX", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSShiftI", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+
+// 13. Vector Floating-Point Instructions
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFALUV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFALUF",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMulV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMulF",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMulAddV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMulAddF", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+  let Latency = 3, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFCvtIToFV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFCvtFToIV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+  let Latency = 2, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFCmpV",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFCmpF",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFRecpV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+  let Latency = 1, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFSgnjV",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFSgnjF",   [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMinMaxV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMinMaxF", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFClassV",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMergeV",  [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFMovV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+
+// Widening
+foreach mx = SchedMxListW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListW>.c;
+  let Latency = 3, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFWCvtIToFV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+foreach mx = SchedMxListFW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListFW>.c;
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFWCvtFToIV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFWCvtFToFV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+foreach mx = SchedMxListFW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListFW>.c;
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFWALUV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFWMulV",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFWMulAddV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFWMulAddF", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFWMulF",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFWALUF",    [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+// Narrowing
+foreach mx = SchedMxListW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListW>.c;
+  let Latency = 3, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFNCvtFToIV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+foreach mx = SchedMxListFW in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxListFW>.c;
+  let Latency = 3, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVFNCvtIToFV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFNCvtFToFV", [SiFiveP600VectorArith], mx, IsWorstCase>;
+  }
+}
+
+// Worst case needs 76 cycles if SEW is equal to 64.
+foreach mx = SchedMxListF in {
+  foreach sew = SchedSEWSet<mx, 1>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxListF, 1>.c;
+    let Latency = 76, ReleaseAtCycles = [LMulLat, !mul(76, LMulLat)] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFDivV",  [SiFiveP600VEXQ1, SiFiveP600VFloatDiv], mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFDivF",  [SiFiveP600VEXQ1, SiFiveP600VFloatDiv], mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFSqrtV", [SiFiveP600VEXQ1, SiFiveP600VFloatDiv], mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+// 14. Vector Reduction Operations
+foreach mx = SchedMxList in {
+  foreach sew = SchedSEWSet<mx>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxList>.c;
+    let Latency = !add(2, !mul(2, LMulLat)), ReleaseAtCycles = [LMulLat] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVIRedV_From", [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVIRedMinMaxV_From", [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+foreach mx = SchedMxListWRed in {
+  foreach sew = SchedSEWSet<mx, 0, 1>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxListWRed>.c;
+    let Latency = !add(2, !mul(2, LMulLat)), ReleaseAtCycles = [LMulLat] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVIWRedV_From", [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+foreach mx = SchedMxListF in {
+  foreach sew = SchedSEWSet<mx, 1>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxListF, 1>.c;
+    let Latency = !add(6, !mul(6, LMulLat)), ReleaseAtCycles = [LMulLat] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFRedV_From", [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFRedMinMaxV_From",
+                                     [SiFiveP600VEXQ1], mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFRedOV_From", [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+foreach mx = SchedMxListFWRed in {
+  foreach sew = SchedSEWSet<mx, 1, 1>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxListFWRed, 1>.c;
+    let Latency = !add(6, !mul(6, LMulLat)), ReleaseAtCycles = [LMulLat] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFWRedV_From",  [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVFWRedOV_From", [SiFiveP600VEXQ1],
+                                     mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+// 15. Vector Mask Instructions
+foreach mx = SchedMxList in {
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 1, ReleaseAtCycles = [1] in {
+    defm "" : LMULWriteResMX<"WriteVMALUV", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVMPopV", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVMFFSV", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVMSFSV", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+  }
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  let Latency = 1, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVIotaV", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVIdxV", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+  }
+}
+
+// 16. Vector Permutation Instructions
+// Simple Slide
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 2, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVISlideI",  [SiFiveP600VEXQ0], mx, IsWorstCase>;
+  }
+  let Latency = 1, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVISlide1X", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVFSlide1F", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+  }
+}
+foreach mx = ["MF8", "MF4", "MF2", "M1"] in {
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 2, ReleaseAtCycles = [1] in {
+    defm "" : LMULWriteResMX<"WriteVISlideX", [SiFiveP600VEXQ0], mx, IsWorstCase>;
+  }
+}
+
+// Complex Slide
+foreach mx = ["M8", "M4", "M2"] in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = !add(4, LMulLat), ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVISlideX", [SiFiveP600VEXQ1], mx, IsWorstCase>;
+  }
+}
+
+let Latency = 2, ReleaseAtCycles = [1] in {
+  def : WriteRes<WriteVMovSX, [SiFiveP600VectorArith]>;
+  def : WriteRes<WriteVMovXS, [SiFiveP600VectorArith]>;
+}
+let Latency = 6, ReleaseAtCycles = [1] in {
+  def : WriteRes<WriteVMovSF, [SiFiveP600VectorArith]>;
+  def : WriteRes<WriteVMovFS, [SiFiveP600VectorArith]>;
+}
+
+// Simple Gather and Compress
+foreach mx = ["MF8", "MF4", "MF2", "M1"] in {
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 3, ReleaseAtCycles = [1] in {
+    defm "" : LMULWriteResMX<"WriteVRGatherVX", [SiFiveP600VEXQ1], mx, IsWorstCase>;
+  }
+}
+
+foreach mx = ["MF8", "MF4", "MF2", "M1"] in {
+  foreach sew = SchedSEWSet<mx>.val in {
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+    let Latency = 3, ReleaseAtCycles = [1] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVRGatherVV", [SiFiveP600VEXQ1], mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVCompressV", [SiFiveP600VEXQ1], mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+// Complex Gather and Compress
+foreach mx = ["M2", "M4", "M8"] in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVRGatherVX", [SiFiveP600VEXQ1], mx, IsWorstCase>;
+  }
+}
+
+foreach mx = ["M2", "M4", "M8"] in {
+  foreach sew = SchedSEWSet<mx>.val in {
+    defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+    defvar IsWorstCase = SiFiveP600IsWorstCaseMXSEW<mx, sew, SchedMxList>.c;
+    let Latency = 6, ReleaseAtCycles = [LMulLat] in {
+      defm "" : LMULSEWWriteResMXSEW<"WriteVRGatherVV", [SiFiveP600VEXQ1], mx, sew, IsWorstCase>;
+      defm "" : LMULSEWWriteResMXSEW<"WriteVCompressV", [SiFiveP600VEXQ1], mx, sew, IsWorstCase>;
+    }
+  }
+}
+
+// Simple Vrgather.vi
+foreach mx = SchedMxList in {
+  defvar LMulLat = SiFiveP600GetLMulCycles<mx>.c;
+  defvar IsWorstCase = SiFiveP600IsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 3, ReleaseAtCycles = [LMulLat] in {
+    defm "" : LMULWriteResMX<"WriteVRGatherVI", [SiFiveP600VEXQ1], mx, IsWorstCase>;
+  }
+}
+
+// Others
+def : WriteRes<WriteCSR, [SiFiveP600SYS]>;
+def : WriteRes<WriteNop, []>;
+def : WriteRes<WriteRdVLENB, [SiFiveP600SYS]>;
+
+// FIXME: This could be better modeled by looking at the regclasses of the operands.
+def : InstRW<[WriteIALU, ReadIALU], (instrs COPY)>;
+
+//===----------------------------------------------------------------------===//
+// Bypass and advance
+def : ReadAdvance<ReadJmp, 0>;
+def : ReadAdvance<ReadJalr, 0>;
+def : ReadAdvance<ReadCSR, 0>;
+def : ReadAdvance<ReadStoreData, 0>;
+def : ReadAdvance<ReadMemBase, 0>;
+def : ReadAdvance<ReadIALU, 0>;
+def : ReadAdvance<ReadIALU32, 0>;
+def : ReadAdvance<ReadShiftImm, 0>;
+def : ReadAdvance<ReadShiftImm32, 0>;
+def : ReadAdvance<ReadShiftReg, 0>;
+def : ReadAdvance<ReadShiftReg32, 0>;
+def : ReadAdvance<ReadIDiv, 0>;
+def : ReadAdvance<ReadIDiv32, 0>;
+def : ReadAdvance<ReadIRem, 0>;
+def : ReadAdvance<ReadIRem32, 0>;
+def : ReadAdvance<ReadIMul, 0>;
+def : ReadAdvance<ReadIMul32, 0>;
+def : ReadAdvance<ReadAtomicWA, 0>;
+def : ReadAdvance<ReadAtomicWD, 0>;
+def : ReadAdvance<ReadAtomicDA, 0>;
+def : ReadAdvance<ReadAtomicDD, 0>;
+def : ReadAdvance<ReadAtomicLDW, 0>;
+def : ReadAdvance<ReadAtomicLDD, 0>;
+def : ReadAdvance<ReadAtomicSTW, 0>;
+def : ReadAdvance<ReadAtomicSTD, 0>;
+def : ReadAdvance<ReadFStoreData, 0>;
+def : ReadAdvance<ReadFMemBase, 0>;
+def : ReadAdvance<ReadFAdd16, 0>;
+def : ReadAdvance<ReadFAdd32, 0>;
+def : ReadAdvance<ReadFAdd64, 0>;
+def : ReadAdvance<ReadFMul16, 0>;
+def : ReadAdvance<ReadFMA16, 0>;
+def : ReadAdvance<ReadFMA16Addend, 0>;
+def : ReadAdvance<ReadFMul32, 0>;
+def : ReadAdvance<ReadFMA32, 0>;
+def : ReadAdvance<ReadFMA32Addend, 0>;
+def : ReadAdvance<ReadFMul64, 0>;
+def : ReadAdvance<ReadFMA64, 0>;
+def : ReadAdvance<ReadFMA64Addend, 0>;
+def : ReadAdvance<ReadFDiv16, 0>;
+def : ReadAdvance<ReadFDiv32, 0>;
+def : ReadAdvance<ReadFDiv64, 0>;
+def : ReadAdvance<ReadFSqrt16, 0>;
+def : ReadAdvance<ReadFSqrt32, 0>;
+def : ReadAdvance<ReadFSqrt64, 0>;
+def : ReadAdvance<ReadFCmp16, 0>;
+def : ReadAdvance<ReadFCmp32, 0>;
+def : ReadAdvance<ReadFCmp64, 0>;
+def : ReadAdvance<ReadFSGNJ16, 0>;
+def : ReadAdvance<ReadFSGNJ32, 0>;
+def : ReadAdvance<ReadFSGNJ64, 0>;
+def : ReadAdvance<ReadFMinMax16, 0>;
+def : ReadAdvance<ReadFMinMax32, 0>;
+def : ReadAdvance<ReadFMinMax64, 0>;
+def : ReadAdvance<ReadFCvtF16ToI32, 0>;
+def : ReadAdvance<ReadFCvtF16ToI64, 0>;
+def : ReadAdvance<ReadFCvtF32ToI32, 0>;
+def : ReadAdvance<ReadFCvtF32ToI64, 0>;
+def : ReadAdvance<ReadFCvtF64ToI32, 0>;
+def : ReadAdvance<ReadFCvtF64ToI64, 0>;
+def : ReadAdvance<ReadFCvtI32ToF16, 0>;
+def : ReadAdvance<ReadFCvtI32ToF32, 0>;
+def : ReadAdvance<ReadFCvtI32ToF64, 0>;
+def : ReadAdvance<ReadFCvtI64ToF16, 0>;
+def : ReadAdvance<ReadFCvtI64ToF32, 0>;
+def : ReadAdvance<ReadFCvtI64ToF64, 0>;
+def : ReadAdvance<ReadFCvtF32ToF64, 0>;
+def : ReadAdvance<ReadFCvtF64ToF32, 0>;
+def : ReadAdvance<ReadFCvtF16ToF32, 0>;
+def : ReadAdvance<ReadFCvtF32ToF16, 0>;
+def : ReadAdvance<ReadFCvtF16ToF64, 0>;
+def : ReadAdvance<ReadFCvtF64ToF16, 0>;
+def : ReadAdvance<ReadFMovF16ToI16, 0>;
+def : ReadAdvance<ReadFMovI16ToF16, 0>;
+def : ReadAdvance<ReadFMovF32ToI32, 0>;
+def : ReadAdvance<ReadFMovI32ToF32, 0>;
+def : ReadAdvance<ReadFMovF64ToI64, 0>;
+def : ReadAdvance<ReadFMovI64ToF64, 0>;
+def : ReadAdvance<ReadFClass16, 0>;
+def : ReadAdvance<ReadFClass32, 0>;
+def : ReadAdvance<ReadFClass64, 0>;
+
+// Bitmanip
+def : ReadAdvance<ReadRotateImm, 0>;
+def : ReadAdvance<ReadRotateImm32, 0>;
+def : ReadAdvance<ReadRotateReg, 0>;
+def : ReadAdvance<ReadRotateReg32, 0>;
+def : ReadAdvance<ReadCLZ, 0>;
+def : ReadAdvance<ReadCLZ32, 0>;
+def : ReadAdvance<ReadCTZ, 0>;
+def : ReadAdvance<ReadCTZ32, 0>;
+def : ReadAdvance<ReadCPOP, 0>;
+def : ReadAdvance<ReadCPOP32, 0>;
+def : ReadAdvance<ReadORCB, 0>;
+def : ReadAdvance<ReadREV8, 0>;
+def : ReadAdvance<ReadSHXADD, 0>;
+def : ReadAdvance<ReadSHXADD32, 0>;
+def : ReadAdvance<ReadSingleBit, 0>;
+def : ReadAdvance<ReadSingleBitImm, 0>;
+
+// 6. Configuration-Setting Instructions
+def : ReadAdvance<ReadVSETVLI, 0>;
+def : ReadAdvance<ReadVSETVL, 0>;
+
+// 7. Vector Loads and Stores
+def : ReadAdvance<ReadVLDX, 0>;
+def : ReadAdvance<ReadVSTX, 0>;
+defm "" : LMULReadAdvance<"ReadVSTEV", 0>;
+defm "" : LMULReadAdvance<"ReadVSTM", 0>;
+def : ReadAdvance<ReadVLDSX, 0>;
+def : ReadAdvance<ReadVSTSX, 0>;
+defm "" : LMULReadAdvance<"ReadVSTS8V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTS16V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTS32V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTS64V", 0>;
+defm "" : LMULReadAdvance<"ReadVLDUXV", 0>;
+defm "" : LMULReadAdvance<"ReadVLDOXV", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX8", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX16", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX32", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX64", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUXV", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX8V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX16V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX32V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTUX64V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX8", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX16", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX32", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX64", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOXV", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX8V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX16V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX32V", 0>;
+defm "" : LMULReadAdvance<"ReadVSTOX64V", 0>;
+// LMUL Aware
+def : ReadAdvance<ReadVST1R, 0>;
+def : ReadAdvance<ReadVST2R, 0>;
+def : ReadAdvance<ReadVST4R, 0>;
+def : ReadAdvance<ReadVST8R, 0>;
+
+// 12. Vector Integer Arithmetic Instructions
+defm : LMULReadAdvance<"ReadVIALUV", 0>;
+defm : LMULReadAdvance<"ReadVIALUX", 0>;
+defm : LMULReadAdvanceW<"ReadVIWALUV", 0>;
+defm : LMULReadAdvanceW<"ReadVIWALUX", 0>;
+defm : LMULReadAdvance<"ReadVExtV", 0>;
+defm : LMULReadAdvance<"ReadVICALUV", 0>;
+defm : LMULReadAdvance<"ReadVICALUX", 0>;
+defm : LMULReadAdvance<"ReadVShiftV", 0>;
+defm : LMULReadAdvance<"ReadVShiftX", 0>;
+defm : LMULReadAdvanceW<"ReadVNShiftV", 0>;
+defm : LMULReadAdvanceW<"ReadVNShiftX", 0>;
+defm : LMULReadAdvance<"ReadVICmpV", 0>;
+defm : LMULReadAdvance<"ReadVICmpX", 0>;
+defm : LMULReadAdvance<"ReadVIMinMaxV", 0>;
+defm : LMULReadAdvance<"ReadVIMinMaxX", 0>;
+defm : LMULReadAdvance<"ReadVIMulV", 0>;
+defm : LMULReadAdvance<"ReadVIMulX", 0>;
+defm : LMULSEWReadAdvance<"ReadVIDivV", 0>;
+defm : LMULSEWReadAdvance<"ReadVIDivX", 0>;
+defm : LMULReadAdvanceW<"ReadVIWMulV", 0>;
+defm : LMULReadAdvanceW<"ReadVIWMulX", 0>;
+defm : LMULReadAdvance<"ReadVIMulAddV", 0>;
+defm : LMULReadAdvance<"ReadVIMulAddX", 0>;
+defm : LMULReadAdvanceW<"ReadVIWMulAddV", 0>;
+defm : LMULReadAdvanceW<"ReadVIWMulAddX", 0>;
+defm : LMULReadAdvance<"ReadVIMergeV", 0>;
+defm : LMULReadAdvance<"ReadVIMergeX", 0>;
+defm : LMULReadAdvance<"ReadVIMovV", 0>;
+defm : LMULReadAdvance<"ReadVIMovX", 0>;
+
+// 13. Vector Fixed-Point Arithmetic Instructions
+defm "" : LMULReadAdvance<"ReadVSALUV", 0>;
+defm "" : LMULReadAdvance<"ReadVSALUX", 0>;
+defm "" : LMULReadAdvance<"ReadVAALUV", 0>;
+defm "" : LMULReadAdvance<"ReadVAALUX", 0>;
+defm "" : LMULReadAdvance<"ReadVSMulV", 0>;
+defm "" : LMULReadAdvance<"ReadVSMulX", 0>;
+defm "" : LMULReadAdvance<"ReadVSShiftV", 0>;
+defm "" : LMULReadAdvance<"ReadVSShiftX", 0>;
+defm "" : LMULReadAdvanceW<"ReadVNClipV", 0>;
+defm "" : LMULReadAdvanceW<"ReadVNClipX", 0>;
+
+// 14. Vector Floating-Point Instructions
+defm "" : LMULReadAdvance<"ReadVFALUV", 0>;
+defm "" : LMULReadAdvance<"ReadVFALUF", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWALUV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWALUF", 0>;
+defm "" : LMULReadAdvance<"ReadVFMulV", 0>;
+defm "" : LMULReadAdvance<"ReadVFMulF", 0>;
+defm "" : LMULSEWReadAdvanceF<"ReadVFDivV", 0>;
+defm "" : LMULSEWReadAdvanceF<"ReadVFDivF", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWMulV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWMulF", 0>;
+defm "" : LMULReadAdvance<"ReadVFMulAddV", 0>;
+defm "" : LMULReadAdvance<"ReadVFMulAddF", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWMulAddV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWMulAddF", 0>;
+defm "" : LMULSEWReadAdvanceF<"ReadVFSqrtV", 0>;
+defm "" : LMULReadAdvance<"ReadVFRecpV", 0>;
+defm "" : LMULReadAdvance<"ReadVFCmpV", 0>;
+defm "" : LMULReadAdvance<"ReadVFCmpF", 0>;
+defm "" : LMULReadAdvance<"ReadVFMinMaxV", 0>;
+defm "" : LMULReadAdvance<"ReadVFMinMaxF", 0>;
+defm "" : LMULReadAdvance<"ReadVFSgnjV", 0>;
+defm "" : LMULReadAdvance<"ReadVFSgnjF", 0>;
+defm "" : LMULReadAdvance<"ReadVFClassV", 0>;
+defm "" : LMULReadAdvance<"ReadVFMergeV", 0>;
+defm "" : LMULReadAdvance<"ReadVFMergeF", 0>;
+defm "" : LMULReadAdvance<"ReadVFMovF", 0>;
+defm "" : LMULReadAdvance<"ReadVFCvtIToFV", 0>;
+defm "" : LMULReadAdvance<"ReadVFCvtFToIV", 0>;
+defm "" : LMULReadAdvanceW<"ReadVFWCvtIToFV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWCvtFToIV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFWCvtFToFV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFNCvtIToFV", 0>;
+defm "" : LMULReadAdvanceW<"ReadVFNCvtFToIV", 0>;
+defm "" : LMULReadAdvanceFW<"ReadVFNCvtFToFV", 0>;
+
+// 15. Vector Reduction Operations
+def : ReadAdvance<ReadVIRedV, 0>;
+def : ReadAdvance<ReadVIRedV0, 0>;
+def : ReadAdvance<ReadVIWRedV, 0>;
+def : ReadAdvance<ReadVIWRedV0, 0>;
+def : ReadAdvance<ReadVFRedV, 0>;
+def : ReadAdvance<ReadVFRedV0, 0>;
+def : ReadAdvance<ReadVFRedOV, 0>;
+def : ReadAdvance<ReadVFRedOV0, 0>;
+def : ReadAdvance<ReadVFWRedV, 0>;
+def : ReadAdvance<ReadVFWRedV0, 0>;
+def : ReadAdvance<ReadVFWRedOV, 0>;
+def : ReadAdvance<ReadVFWRedOV0, 0>;
+
+// 16. Vector Mask Instructions
+defm "" : LMULReadAdvance<"ReadVMALUV", 0>;
+defm "" : LMULReadAdvance<"ReadVMPopV", 0>;
+defm "" : LMULReadAdvance<"ReadVMFFSV", 0>;
+defm "" : LMULReadAdvance<"ReadVMSFSV", 0>;
+defm "" : LMULReadAdvance<"ReadVIotaV", 0>;
+
+// 17. Vector Permutation Instructions
+def : ReadAdvance<ReadVMovXS, 0>;
+def : ReadAdvance<ReadVMovSX_V, 0>;
+def : ReadAdvance<ReadVMovSX_X, 0>;
+def : ReadAdvance<ReadVMovFS, 0>;
+def : ReadAdvance<ReadVMovSF_V, 0>;
+def : ReadAdvance<ReadVMovSF_F, 0>;
+defm "" : LMULReadAdvance<"ReadVISlideV", 0>;
+defm "" : LMULReadAdvance<"ReadVISlideX", 0>;
+defm "" : LMULReadAdvance<"ReadVFSlideV", 0>;
+defm "" : LMULReadAdvance<"ReadVFSlideF", 0>;
+defm "" : LMULSEWReadAdvance<"ReadVRGatherVV_data", 0>;
+defm "" : LMULSEWReadAdvance<"ReadVRGatherVV_index", 0>;
+defm "" : LMULReadAdvance<"ReadVRGatherVX_data", 0>;
+defm "" : LMULReadAdvance<"ReadVRGatherVX_index", 0>;
+defm "" : LMULReadAdvance<"ReadVRGatherVI_data", 0>;
+defm "" : LMULSEWReadAdvance<"ReadVCompressV", 0>;
+// LMUL Aware
+def : ReadAdvance<ReadVMov1V, 0>;
+def : ReadAdvance<ReadVMov2V, 0>;
+def : ReadAdvance<ReadVMov4V, 0>;
+def : ReadAdvance<ReadVMov8V, 0>;
+
+// Others
+def : ReadAdvance<ReadVMask, 0>;
+def : ReadAdvance<ReadVMergeOp_WorstCase, 0>;
+foreach mx = SchedMxList in {
+  def : ReadAdvance<!cast<SchedRead>("ReadVMergeOp_" # mx), 0>;
+  foreach sew = SchedSEWSet<mx>.val in
+    def : ReadAdvance<!cast<SchedRead>("ReadVMergeOp_" # mx  # "_E" # sew), 0>;
+}
+
+//===----------------------------------------------------------------------===//
+// Unsupported extensions
+defm : UnsupportedSchedZabha;
+defm : UnsupportedSchedZbc;
+defm : UnsupportedSchedZbkb;
+defm : UnsupportedSchedZbkx;
+defm : UnsupportedSchedSFB;
+defm : UnsupportedSchedZfa;
+}