1 ; RUN: llc < %s -mtriple arm64-apple-darwin -asm-verbose=false | FileCheck %s 2 3 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 4 5 ; Test the (concat_vectors (trunc), (trunc)) pattern. 6 7 define <4 x i16> @test_concat_truncate_v2i64_to_v4i16(<2 x i64> %a, <2 x i64> %b) #0 { 8 entry: 9 ; CHECK-LABEL: test_concat_truncate_v2i64_to_v4i16: 10 ; CHECK-NEXT: uzp1.4s v0, v0, v1 11 ; CHECK-NEXT: xtn.4h v0, v0 12 ; CHECK-NEXT: ret 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 17 } 18 19 define <8 x i8> @test_concat_truncate_v4i32_to_v8i8(<4 x i32> %a, <4 x i32> %b) #0 { 20 entry: 21 ; CHECK-LABEL: test_concat_truncate_v4i32_to_v8i8: 22 ; CHECK-NEXT: uzp1.8h v0, v0, v1 23 ; CHECK-NEXT: xtn.8b v0, v0 24 ; CHECK-NEXT: ret 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> 28 ret <8 x i8> %shuffle 29 } 30 31 define <8 x i16> @test_concat_truncate_v4i32_to_v8i16(<4 x i32> %a, <4 x i32> %b) #0 { 32 entry: 33 ; CHECK-LABEL: test_concat_truncate_v4i32_to_v8i16: 34 ; CHECK-NEXT: xtn.4h v0, v0 35 ; CHECK-NEXT: xtn2.8h v0, v1 36 ; CHECK-NEXT: ret 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 41 } 42 43 attributes #0 = { nounwind } 44
