LangRef llvm.expect / llvm.expect.with.probability clarification.

[Chobbes]

In the LangRef both of these intrinsics have return values:

https://llvm.org/docs/LangRef.html#llvm-expect-intrinsic
https://llvm.org/docs/LangRef.html#llvm-expect-with-probability-intrinsic

I'm a little unclear about what these intrinsics are supposed to return.

The documentation for both of these intrinsics says:

This intrinsic is lowered to the val.

val is the first argument to both of these intrinsics, so am I correct in assuming that both of these intrinsics just return their first value?

Thanks!

[nikic]

val is the first argument to both of these intrinsics, so am I correct in assuming that both of these intrinsics just return their first value?

Yes, that's correct.

[llvmbot]

@llvm/issue-subscribers-backend-aarch64

Author: Calvin Beck (Chobbes)

In the LangRef both of these intrinsics have return values:

https://llvm.org/docs/LangRef.html#llvm-expect-intrinsic
https://llvm.org/docs/LangRef.html#llvm-expect-with-probability-intrinsic

I'm a little unclear about what these intrinsics are supposed to return.

The documentation for both of these intrinsics says:

> This intrinsic is lowered to the val.

val is the first argument to both of these intrinsics, so am I correct in assuming that both of these intrinsics just return their first value?

Thanks!