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; RUN: opt < %s -instcombine -S | not grep sub define <3 x i8> @f(<3 x i8> %a) { %A = sub <3 x i8> zeroinitializer, %a %B = mul <3 x i8> %A, <i8 5, i8 5, i8 5> ret <3 x i8> %B }