[clang] [llvm] [RISCV][P-ext] Add packed multiply-parts intrinsics (PR #218875)

[Craig Topper via llvm-commits]

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@@ -2124,6 +2124,36 @@ class RVPBinaryIntrinsic
   def int_riscv_pmhraccu  : RVPTernaryIntrinsic;
   def int_riscv_pmhaccsu  : RVPTernaryIntrinsic;
   def int_riscv_pmhraccsu : RVPTernaryIntrinsic;
+  // Packed Multiply Parts. The packed forms multiply the selected element of
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topperc wrote:

```suggestion

  // Packed Multiply Parts. The packed forms multiply the selected element of
```

https://github.com/llvm/llvm-project/pull/218875