nikic wrote: This one asserts with `-mattr=+avx512f`: ```llvm define <33 x i2> @test_ucmp.33.4.2(<33 x i4> %x, <33 x i4> %y) { %1 = call <33 x i2> @llvm.ucmp(<33 x i4> %x, <33 x i4> %y) ret <33 x i2> %1 } ``` https://github.com/llvm/llvm-project/pull/91871