Comments (1)
I think this is an llvm issue, as it can be reproduced with llvm-ir and also with fewer lanes that match the native vector size: https://llvm.godbolt.org/z/7YeGs6Ezs
My understanding is that this mask handling for avx happens relatively late in the backend and is also not consistent. For example it works with platform specific llvm.x86.avx2.gather
intrinsics, but not with portable llvm.masked.gather
.
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