[clang] [NFC][Clang][AArch64]Refactor implementation of Neon vectors MFloat8… (PR #114804)

[via cfe-commits]

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@@ -6513,6 +6513,8 @@ static llvm::FixedVectorType *GetNeonType(CodeGenFunction *CGF,
   case NeonTypeFlags::Int8:
   case NeonTypeFlags::Poly8:
     return llvm::FixedVectorType::get(CGF->Int8Ty, V1Ty ? 1 : (8 << IsQuad));
+  case NeonTypeFlags::MFloat8:
+    return llvm::FixedVectorType::get(CGF->Int8Ty, V1Ty ? 1 : (8 << IsQuad));
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SpencerAbson wrote:

We could just let this fall through as

```suggestion
  case NeonTypeFlags::Int8:
  case NeonTypeFlags::Poly8:
  case NeonTypeFlags::MFloat8:
    return llvm::FixedVectorType::get(CGF->Int8Ty, V1Ty ? 1 : (8 << IsQuad));
```

https://github.com/llvm/llvm-project/pull/114804