1; RUN: llc < %s -o /dev/null 2 3; 4; Test that we dont get a crash after an invalid build_vector combine. 5; 6 7target triple = "aarch64-unknown-linux-gnu" 8define void @test_crash(ptr %dst_ptr) { 9entry: 10 %vec_load = load <4 x i16>, ptr undef, align 8 11 %0 = sext <4 x i16> %vec_load to <4 x i32> 12 %add71vec = add nsw <4 x i32> %0, <i32 32, i32 32, i32 32, i32 32> 13 %add104vec = add nsw <4 x i32> %add71vec, zeroinitializer 14 %add105vec = add nsw <4 x i32> zeroinitializer, %add104vec 15 %vec = lshr <4 x i32> %add105vec, <i32 6, i32 6, i32 6, i32 6> 16 %1 = trunc <4 x i32> %vec to <4 x i16> 17 %2 = shufflevector <4 x i16> %1, <4 x i16> undef, <2 x i32> <i32 1, i32 2> 18 %3 = sext <2 x i16> %2 to <2 x i32> 19 %4 = shufflevector <2 x i32> %3, <2 x i32> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef> 20 %5 = shufflevector <4 x i32> undef, <4 x i32> %4, <4 x i32> <i32 0, i32 4, i32 5, i32 undef> 21 %6 = insertelement <4 x i32> %5, i32 undef, i64 3 22 %7 = add nsw <4 x i32> %6, zeroinitializer 23 %8 = select <4 x i1> zeroinitializer, <4 x i32> %7, <4 x i32> undef 24 %9 = trunc <4 x i32> %8 to <4 x i8> 25 store <4 x i8> %9, ptr %dst_ptr, align 1 26 ret void 27} 28