1 ; RUN: llc < %s -mtriple arm64-apple-darwin -asm-verbose=false | FileCheck %s
3 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5 ; Test the (concat_vectors (trunc), (trunc)) pattern.
7 define <4 x i16> @test_concat_truncate_v2i64_to_v4i16(<2 x i64> %a, <2 x i64> %b) #0 {
9 ; CHECK-LABEL: test_concat_truncate_v2i64_to_v4i16:
10 ; CHECK-NEXT: uzp1.4s v0, v0, v1
11 ; CHECK-NEXT: xtn.4h v0, v0
13 %at = trunc <2 x i64> %a to <2 x i16>
14 %bt = trunc <2 x i64> %b to <2 x i16>
15 %shuffle = shufflevector <2 x i16> %at, <2 x i16> %bt, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
16 ret <4 x i16> %shuffle
19 define <8 x i8> @test_concat_truncate_v4i32_to_v8i8(<4 x i32> %a, <4 x i32> %b) #0 {
21 ; CHECK-LABEL: test_concat_truncate_v4i32_to_v8i8:
22 ; CHECK-NEXT: uzp1.8h v0, v0, v1
23 ; CHECK-NEXT: xtn.8b v0, v0
25 %at = trunc <4 x i32> %a to <4 x i8>
26 %bt = trunc <4 x i32> %b to <4 x i8>
27 %shuffle = shufflevector <4 x i8> %at, <4 x i8> %bt, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
31 define <8 x i16> @test_concat_truncate_v4i32_to_v8i16(<4 x i32> %a, <4 x i32> %b) #0 {
33 ; CHECK-LABEL: test_concat_truncate_v4i32_to_v8i16:
34 ; CHECK-NEXT: xtn.4h v0, v0
35 ; CHECK-NEXT: xtn2.8h v0, v1
37 %at = trunc <4 x i32> %a to <4 x i16>
38 %bt = trunc <4 x i32> %b to <4 x i16>
39 %shuffle = shufflevector <4 x i16> %at, <4 x i16> %bt, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
40 ret <8 x i16> %shuffle
43 attributes #0 = { nounwind }