; RUN: llc -O0 -march=arm64 -aarch64-neon-syntax=apple -verify-machineinstrs < %s | FileCheck %s ; The following 2 test cases test shufflevector with beginning UNDEF mask. define <8 x i16> @test_vext_undef_traverse(<8 x i16> %in) { ;CHECK-LABEL: test_vext_undef_traverse: ;CHECK: {{ext.16b.*v0, #4}} %vext = shufflevector <8 x i16> <i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 0, i16 0>, <8 x i16> %in, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 6, i32 7, i32 8, i32 9> ret <8 x i16> %vext } define <8 x i16> @test_vext_undef_traverse2(<8 x i16> %in) { ;CHECK-LABEL: test_vext_undef_traverse2: ;CHECK: {{ext.16b.*v0, #6}} %vext = shufflevector <8 x i16> %in, <8 x i16> <i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef, i16 undef>, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 1, i32 2> ret <8 x i16> %vext } define <8 x i8> @test_vext_undef_traverse3(<8 x i8> %in) { ;CHECK-LABEL: test_vext_undef_traverse3: ;CHECK: {{ext.8b.*v0, #6}} %vext = shufflevector <8 x i8> %in, <8 x i8> <i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef>, <8 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 2, i32 3, i32 4, i32 5> ret <8 x i8> %vext }