[llvm] [RISCV][VLOPT] Add getOperandInfo for Vector Store Whole Register Instructions (PR #119570)

[Luke Lau via llvm-commits]

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@@ -483,3 +483,28 @@ body: |
     %x:vr = PseudoVADD_VV_MF4 $noreg, $noreg, $noreg, -1, 3 /* e8 */, 0
     %y:vr = PseudoVNSRL_WV_MF2 $noreg, $noreg, %x, 1, 3 /* e8 */, 0
 ...
+---
+name: vsNr_v
+body: |
+  bb.0:
+    ; CHECK-LABEL: name: vsNr_v
+    ; CHECK: %x:vr = PseudoVADD_VV_M1 $noreg, $noreg, $noreg, -1, 3 /* e8 */, 0 /* tu, mu */
+    ; CHECK-NEXT: %y:gpr = ADDI $x0, 1
+    ; CHECK-NEXT: VS1R_V %x, %y
+    %x:vr = PseudoVADD_VV_M1 $noreg, $noreg, $noreg, -1, 3 /* e8 */, 0
+    %y:gpr = ADDI $x0, 1
+    VS1R_V %x, %y,
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lukel97 wrote:

Nit, if we don't care about the scalar then I think you can just pass noreg or undef to it

https://github.com/llvm/llvm-project/pull/119570