1; RUN: opt < %s -passes=instcombine | llvm-dis 2; PR4495 3 4define i32 @test(i64 %test) { 5entry: 6 %0 = bitcast <4 x i32> undef to <16 x i8> ; <<16 x i8>> [#uses=1] 7 %t12 = shufflevector <16 x i8> %0, <16 x i8> zeroinitializer, <16 x i32> <i32 0, i32 16, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0> ; <<16 x i8>> [#uses=1] 8 %t11 = bitcast <16 x i8> %t12 to <2 x i64> ; <<2 x i64>> [#uses=1] 9 %t9 = extractelement <2 x i64> %t11, i32 0 ; <i64> [#uses=1] 10 %t10 = bitcast i64 %t9 to <2 x i32> ; <<2 x i32>> [#uses=1] 11 %t7 = bitcast i64 %test to <2 x i32> ; <<2 x i32>> [#uses=1] 12 %t6 = xor <2 x i32> %t10, %t7 ; <<2 x i32>> [#uses=1] 13 %t1 = extractelement <2 x i32> %t6, i32 0 ; <i32> [#uses=1] 14 ret i32 %t1 15} 16