1 ; RUN: llc < %s -mtriple aarch64-unknown-unknown -aarch64-neon-syntax=apple -asm-verbose=false | FileCheck %s
3 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5 ; Test the (concat_vectors (bitcast (scalar)), ..) pattern.
7 define <8 x i8> @test_concat_scalar_v2i8_to_v8i8_dup(i32 %x) #0 {
9 ; CHECK-LABEL: test_concat_scalar_v2i8_to_v8i8_dup:
10 ; CHECK-NEXT: dup.4h v0, w0
12 %t = trunc i32 %x to i16
13 %0 = bitcast i16 %t to <2 x i8>
14 %1 = shufflevector <2 x i8> %0, <2 x i8> undef, <8 x i32> <i32 0, i32 1, i32 0, i32 1, i32 0, i32 1, i32 0, i32 1>
18 define <8 x i8> @test_concat_scalar_v4i8_to_v8i8_dup(i32 %x) #0 {
20 ; CHECK-LABEL: test_concat_scalar_v4i8_to_v8i8_dup:
21 ; CHECK-NEXT: dup.2s v0, w0
23 %0 = bitcast i32 %x to <4 x i8>
24 %1 = shufflevector <4 x i8> %0, <4 x i8> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
28 define <8 x i16> @test_concat_scalar_v2i16_to_v8i16_dup(i32 %x) #0 {
30 ; CHECK-LABEL: test_concat_scalar_v2i16_to_v8i16_dup:
31 ; CHECK-NEXT: dup.4s v0, w0
33 %0 = bitcast i32 %x to <2 x i16>
34 %1 = shufflevector <2 x i16> %0, <2 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 2, i32 0, i32 1, i32 0, i32 1>
38 define <8 x i8> @test_concat_scalars_2x_v2i8_to_v8i8(i32 %x, i32 %y) #0 {
40 ; CHECK-LABEL: test_concat_scalars_2x_v2i8_to_v8i8:
41 ; CHECK-NEXT: fmov s0, w0
42 ; CHECK-NEXT: mov.h v0[1], w1
43 ; CHECK-NEXT: mov.h v0[3], w1
45 %tx = trunc i32 %x to i16
46 %ty = trunc i32 %y to i16
47 %bx = bitcast i16 %tx to <2 x i8>
48 %by = bitcast i16 %ty to <2 x i8>
49 %r = shufflevector <2 x i8> %bx, <2 x i8> %by, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 2, i32 3>
53 define <8 x i8> @test_concat_scalars_2x_v4i8_to_v8i8_dup(i32 %x, i32 %y) #0 {
55 ; CHECK-LABEL: test_concat_scalars_2x_v4i8_to_v8i8_dup:
56 ; CHECK-NEXT: fmov s0, w1
57 ; CHECK-NEXT: mov.s v0[1], w0
59 %bx = bitcast i32 %x to <4 x i8>
60 %by = bitcast i32 %y to <4 x i8>
61 %r = shufflevector <4 x i8> %bx, <4 x i8> %by, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3>
65 define <8 x i16> @test_concat_scalars_2x_v2i16_to_v8i16_dup(i32 %x, i32 %y) #0 {
67 ; CHECK-LABEL: test_concat_scalars_2x_v2i16_to_v8i16_dup:
68 ; CHECK-NEXT: fmov s0, w0
69 ; CHECK-NEXT: mov.s v0[1], w1
70 ; CHECK-NEXT: mov.s v0[2], w1
71 ; CHECK-NEXT: mov.s v0[3], w0
73 %bx = bitcast i32 %x to <2 x i16>
74 %by = bitcast i32 %y to <2 x i16>
75 %r = shufflevector <2 x i16> %bx, <2 x i16> %by, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 2, i32 3, i32 0, i32 1>
79 ; Also make sure we minimize bitcasts.
81 ; This is a pretty artificial testcase: make sure we bitcast to floating-point
82 ; if any of the scalars is floating-point.
83 define <8 x i8> @test_concat_scalars_mixed_2x_v2i8_to_v8i8(float %dummy, i32 %x, half %y) #0 {
85 ; CHECK-LABEL: test_concat_scalars_mixed_2x_v2i8_to_v8i8:
86 ; CHECK-NEXT: fmov s[[X:[0-9]+]], w0
87 ; CHECK-NEXT: mov.16b v0, v[[X]]
88 ; CHECK-NEXT: mov.h v0[1], v1[0]
89 ; CHECK-NEXT: mov.h v0[2], v[[X]][0]
90 ; CHECK-NEXT: mov.h v0[3], v1[0]
92 %t = trunc i32 %x to i16
93 %0 = bitcast i16 %t to <2 x i8>
94 %y0 = bitcast half %y to <2 x i8>
95 %1 = shufflevector <2 x i8> %0, <2 x i8> %y0, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
99 define <2 x float> @test_concat_scalars_fp_2x_v2i8_to_v8i8(float %dummy, half %x, half %y) #0 {
101 ; CHECK-LABEL: test_concat_scalars_fp_2x_v2i8_to_v8i8:
102 ; CHECK-NEXT: mov.16b v0, v1
103 ; CHECK-NEXT: mov.h v0[1], v2[0]
104 ; CHECK-NEXT: mov.h v0[2], v1[0]
105 ; CHECK-NEXT: mov.h v0[3], v2[0]
107 %0 = bitcast half %x to <2 x i8>
108 %y0 = bitcast half %y to <2 x i8>
109 %1 = shufflevector <2 x i8> %0, <2 x i8> %y0, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
110 %2 = bitcast <8 x i8> %1 to <2 x float>
114 define <4 x float> @test_concat_scalar_fp_v2i16_to_v16i8_dup(float %x) #0 {
116 ; CHECK-LABEL: test_concat_scalar_fp_v2i16_to_v16i8_dup:
117 ; CHECK-NEXT: dup.4s v0, v0[0]
119 %0 = bitcast float %x to <2 x i16>
120 %1 = shufflevector <2 x i16> %0, <2 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 2, i32 0, i32 1, i32 0, i32 1>
121 %2 = bitcast <8 x i16> %1 to <4 x float>
125 attributes #0 = { nounwind }