[llvm] [AArch64][CodeGen] Fold tbx(splat(0), table, idxs) to tbl(table, idxs) (PR #214146)

[Benjamin Maxwell via llvm-commits]

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@@ -0,0 +1,11 @@
+; RUN: llc -mtriple=aarch64 -mattr=+neon < %s | FileCheck %s
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MacDue wrote:

Use `./llvm/utils/update_llc_test_checks.py` to generate checks. Don't manually write check lines.

https://github.com/llvm/llvm-project/pull/214146