[llvm] [AMDGPU] Make `(v2i32 (trunc v2i64:$a))` legal (PR #207761)

[Matt Arsenault via llvm-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/207761 at github.com>


arsenm wrote:

> So the trunc here means to trunc each element of the vector instead of treating it as a whole? I sometimes find this confusing.

Of course, yes

https://github.com/llvm/llvm-project/pull/207761