banach-space wrote:

> Do I need to create one? E.g. 
> ./clang/test/CodeGen/AArch64/neon/fma-sqrt-constrained.c?

Note quite.

* Since regular 
[vsqrtq_f64](https://developer.arm.com/architectures/instruction-sets/intrinsics/vsqrtq_f64)
 is located in `./clang/test/CodeGen/AArch64/neon/intrinsics.c`, the 
constrained version should be located in 
`/clang/test/CodeGen/AArch64/neon/intrinsics-constrained.c`
* Since regular `vfma_f64` is in 
`clang/test/CodeGen/AArch64/neon/fused-multiply.c`, the constrained version 
should go to `clang/test/CodeGen/AArch64/neon/fused-multiply-constrained.c`.

Hopefully this makes sense.

https://github.com/llvm/llvm-project/pull/218307
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