jjasmine e9c9f8f374 [WebAssembly] Fold any/alltrue (setcc x, 0, eq/ne) to [not] any/alltrue x (#144741) ...

Fixes https://github.com/llvm/llvm-project/issues/50142, a miss of
further vectorization, where we can only achieve zext (xor (any_true),
-1).

Now in test case simd-setcc-reductions, it's converted to all_true.

Also fixes https://github.com/llvm/llvm-project/issues/145177, which is

all_true (setcc x, 0, eq) -> not any_true
any_true (setcc x, 0, ne) -> any_true
all_true (setcc x, 0, ne) -> all_true

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Co-authored-by: badumbatish <--show-origin>

2025-07-01 15:27:37 -07:00

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