[llvm] [RISCV][GISel] Support select vector load intrinsics (PR #160720)

[Jianjian Guan via llvm-commits]

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@@ -716,6 +825,9 @@ bool RISCVInstructionSelector::select(MachineInstr &MI) {
     return true;
   }
 
+  if (earlySelect(MI, MIB))
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jacquesguan wrote:

The motivation is that we process those intrinsics before pattern match in SelectionDAG. Now I move it after selectImpl.

https://github.com/llvm/llvm-project/pull/160720