[RISCV] Add scheduling information for Zba and Zbb to RISCVSchedSiFive7.td

Based on the following description from Andrew W.

- Instructions not mentioned here behave the same as integer ALU ops
- rev8 only executes in the late-A and late-B ALUs
- shNadd[.uw] only execute on the early-B and late-B ALUs
- clz[w], ctz[w], and orc.b and all rotates only execute in the late-B ALU
- pcnt[w] looks exactly like integer multiply

This patch does not account for early/late ALU in the model. It is coded based
on the pipes only.

Differential Revision: https://reviews.llvm.org/D149497

Co-Authored-By: topperc <[email protected]>

Author: michaelmaitland

llvm/lib/Target/RISCV/RISCVSchedSiFive7.td

@@ -76,6 +76,35 @@ def : WriteRes<WriteIDiv32,  [SiFive7PipeB, SiFive7IDiv]> {
   let ResourceCycles = [1, 15];
 }
 
+// Bitmanip
+let Latency = 3 in {
+// Rotates are in the late-B ALU.
+def : WriteRes<WriteRotateImm, [SiFive7PipeB]>;
+def : WriteRes<WriteRotateImm32, [SiFive7PipeB]>;
+def : WriteRes<WriteRotateReg, [SiFive7PipeB]>;
+def : WriteRes<WriteRotateReg32, [SiFive7PipeB]>;
+
+// clz[w]/ctz[w] are in the late-B ALU.
+def : WriteRes<WriteCLZ, [SiFive7PipeB]>;
+def : WriteRes<WriteCLZ32, [SiFive7PipeB]>;
+def : WriteRes<WriteCTZ, [SiFive7PipeB]>;
+def : WriteRes<WriteCTZ32, [SiFive7PipeB]>;
+
+// cpop[w] look exactly like multiply.
+def : WriteRes<WriteCPOP, [SiFive7PipeB]>;
+def : WriteRes<WriteCPOP32, [SiFive7PipeB]>;
+
+// orc.b is in the late-B ALU.
+def : WriteRes<WriteORCB, [SiFive7PipeB]>;
+
+// rev8 is in the late-A and late-B ALUs.
+def : WriteRes<WriteREV8, [SiFive7PipeAB]>;
+
+// shNadd[.uw] is on the early-B and late-B ALUs.
+def : WriteRes<WriteSHXADD, [SiFive7PipeB]>;
+def : WriteRes<WriteSHXADD32, [SiFive7PipeB]>;
+}
+
 // Memory
 def : WriteRes<WriteSTB, [SiFive7PipeA]>;
 def : WriteRes<WriteSTH, [SiFive7PipeA]>;
@@ -230,11 +259,188 @@ def : ReadAdvance<ReadFClass64, 0>;
 
 def : ReadAdvance<ReadSFB, 0>;
 
+// 6. Configuration-Setting Instructions
+def : ReadAdvance<ReadVSETVLI, 2>;
+def : ReadAdvance<ReadVSETVL, 2>;
+
+// 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<"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<"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<"ReadVMIotV", 0>;
+
+// 17. Vector Permutation Instructions
+defm "" : LMULReadAdvance<"ReadVIMovVX", 0>;
+defm "" : LMULReadAdvance<"ReadVIMovXV", 0>;
+defm "" : LMULReadAdvance<"ReadVIMovXX", 0>;
+defm "" : LMULReadAdvance<"ReadVFMovVF", 0>;
+defm "" : LMULReadAdvance<"ReadVFMovFV", 0>;
+defm "" : LMULReadAdvance<"ReadVFMovFX", 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>;
+
+// 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>;
+
 //===----------------------------------------------------------------------===//
 // Unsupported extensions
 defm : UnsupportedSchedV;
-defm : UnsupportedSchedZba;
-defm : UnsupportedSchedZbb;
 defm : UnsupportedSchedZbc;
 defm : UnsupportedSchedZbs;
 defm : UnsupportedSchedZbkb;