1 ; RUN: opt < %s -instcombine -S | grep "ret <4 x i32> %A" 2 3 ; PR1286 4 define <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