[LLVMdev] Signed i1?

[林萌]

Hi guys,

I'm just wondering, is there any signed i1?

I found two operations, ISD::MULHU and ISD::MULHS -  Multiply high -
Multiply two integers of type iN, producing an unsigned/signed value of
type i[2*N], then return the top part.

What will be the result of MULHS on v32i1? This question may seem weird,
but I just want to know if there is any LLVM convention on it.

Thanks!
Meng
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