[llvm-dev] Most efficient way to check if a <n x i1> vector only contains 1s

[zhi chen via llvm-dev]

Hi all,

What's is the most efficient way to check if a vectorType Value a <n x i1>
only contains 1s in LLVM, where n is even? I tried to extract each element
and then insert an ICmpInst with low efficiency because I didn't see a
reduction operation. Is there any better way?

Best,
Zhi
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