[llvm] [RISCV] tt-ascalon-d8 vector scheduling (PR #167066)

[Petr Penzin via llvm-commits]

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@@ -316,10 +409,634 @@ def : ReadAdvance<ReadSHXADD32, 0>;
 def : ReadAdvance<ReadSingleBit, 0>;
 def : ReadAdvance<ReadSingleBitImm, 0>;
 
+//===----------------------------------------------------------------------===//
+// Vector
+def : WriteRes<WriteRdVLENB, [AscalonFXA]>;
+
+// Configuration-Setting Instructions
+let Latency = 1 in {
+def : WriteRes<WriteVSETVLI, [AscalonV]>;
+def : WriteRes<WriteVSETIVLI, [AscalonV]>;
+}
+let Latency = 2 in {
+def : WriteRes<WriteVSETVL, [AscalonV]>;
+}
+
+// Vector Loads and Stores
+foreach mx = SchedMxList in {
+  defvar Cycles = AscalonGetCyclesDefault<mx>.c;
+  defvar IsWorstCase = AscalonIsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = Cycles in {
+    defm "" : LMULWriteResMX<"WriteVLDE",    [AscalonLS], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDFF",   [AscalonLS], mx, IsWorstCase>;
+  }
+  let Latency = 1 in
+  defm "" : LMULWriteResMX<"WriteVSTE",    [AscalonLS], mx, IsWorstCase>;
+}
+
+foreach mx = SchedMxList in {
+  defvar IsWorstCase = AscalonIsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = 1 in
+  defm "" : LMULWriteResMX<"WriteVLDM",    [AscalonLS], mx, IsWorstCase>;
+  let Latency = 1 in
+  defm "" : LMULWriteResMX<"WriteVSTM",    [AscalonLS], mx, IsWorstCase>;
+}
+
+foreach mx = SchedMxList in {
+  defvar Cycles = AscalonGetCyclesLMUL<mx, 2>.c;
+  defvar IsWorstCase = AscalonIsWorstCaseMX<mx, SchedMxList>.c;
+  let Latency = Cycles in {
+    defm "" : LMULWriteResMX<"WriteVLDS8", [AscalonLS], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDUX8", [AscalonLS], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVLDOX8", [AscalonLS], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTS8",  [AscalonLS], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTUX8", [AscalonLS], mx, IsWorstCase>;
+    defm "" : LMULWriteResMX<"WriteVSTOX8", [AscalonLS], mx, IsWorstCase>;
+  }
+}
+foreach mx = ["MF4", "MF2", "M1", "M2", "M4", "M8"] in {
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ppenzin wrote:

Yes, though I am a bit hesitant changing this for two reasons: `SchedMxListF` has a comment describing it as floating point, and there are further sections that have a variation of this list (next would be missing "MF4", then "MF2", etc). I don't feel very strongly either way though.

https://github.com/llvm/llvm-project/pull/167066