1; RUN: opt < %s -instcombine -S | grep {ret <4 x i32> %A} 2 3; PR1286 4define <4 x i32> @test1(<4 x i32> %A) { 5 %B = insertelement <4 x i32> %A, i32 undef, i32 1 6 ret <4 x i32> %B 7} 8