[llvm] wasm: recognize `any_true` and `all_true` (PR #155885)

[Folkert de Vries via llvm-commits]

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@@ -2728,6 +2729,70 @@ WebAssemblyTargetLowering::LowerVECTOR_SHUFFLE(SDValue Op,
   return DAG.getNode(WebAssemblyISD::SHUFFLE, DL, Op.getValueType(), Ops);
 }
 
+static SDValue emitShuffleReduceTree(SelectionDAG &DAG, const SDLoc &DL,
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folkertdev wrote:

Yup, found it. It does prefer the non-shuffle version in more cases, but that is probably actually better in practice given that shuffles are expensive.

https://github.com/llvm/llvm-project/pull/155885