1 ; RUN: opt < %s -instcombine -S | not grep sub 2 3 define <3 x i8> @f(<3 x i8> %a) { 4 %A = sub <3 x i8> zeroinitializer, %a 5 %B = mul <3 x i8> %A, <i8 5, i8 5, i8 5> 6 ret <3 x i8> %B 7 } 8 9