[llvm] [GlobalISel][AArch64] Legalize G_SPLAT_VECTOR (PR #114006)

[David Green via llvm-commits]

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@@ -1316,6 +1316,10 @@ AArch64LegalizerInfo::AArch64LegalizerInfo(const AArch64Subtarget &ST)
       .widenScalarOrEltToNextPow2(0)
       .immIdx(0); // Inform verifier imm idx 0 is handled.
 
+  // TODO: {nxv8s16, s16}
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davemgreen wrote:

Why leave s16 (and s8) as a todo?
(It is useful to leave reasons like this in the commit summary).

https://github.com/llvm/llvm-project/pull/114006