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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 | FileCheck %s
3
4; Test that we correctly fold a shuffle that performs a swizzle of another
5; shuffle node according to the rule
6;  shuffle (shuffle (x, undef, M0), undef, M1) -> shuffle(x, undef, M2)
7;
8; We only do this if the resulting mask is legal to avoid introducing an
9; illegal shuffle that is expanded into a sub-optimal sequence of instructions
10; during lowering stage.
11
12define <4 x i32> @swizzle_1(<4 x i32> %v) {
13; CHECK-LABEL: swizzle_1:
14; CHECK:       # %bb.0:
15; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,0,3,2]
16; CHECK-NEXT:    retq
17  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 3, i32 2, i32 0, i32 1>
18  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 3, i32 2, i32 0, i32 1>
19  ret <4 x i32> %2
20}
21
22define <4 x i32> @swizzle_2(<4 x i32> %v) {
23; CHECK-LABEL: swizzle_2:
24; CHECK:       # %bb.0:
25; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[2,1,3,0]
26; CHECK-NEXT:    retq
27  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 3, i32 1, i32 0, i32 2>
28  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 3, i32 1, i32 0, i32 2>
29  ret <4 x i32> %2
30}
31
32define <4 x i32> @swizzle_3(<4 x i32> %v) {
33; CHECK-LABEL: swizzle_3:
34; CHECK:       # %bb.0:
35; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,0,3,2]
36; CHECK-NEXT:    retq
37  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 1, i32 0>
38  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 1, i32 0>
39  ret <4 x i32> %2
40}
41
42define <4 x i32> @swizzle_4(<4 x i32> %v) {
43; CHECK-LABEL: swizzle_4:
44; CHECK:       # %bb.0:
45; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,1,0,2]
46; CHECK-NEXT:    retq
47  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 2, i32 1, i32 3, i32 0>
48  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 2, i32 1, i32 3, i32 0>
49  ret <4 x i32> %2
50}
51
52define <4 x i32> @swizzle_5(<4 x i32> %v) {
53; CHECK-LABEL: swizzle_5:
54; CHECK:       # %bb.0:
55; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[2,3,0,1]
56; CHECK-NEXT:    retq
57  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
58  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
59  ret <4 x i32> %2
60}
61
62define <4 x i32> @swizzle_6(<4 x i32> %v) {
63; CHECK-LABEL: swizzle_6:
64; CHECK:       # %bb.0:
65; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[2,0,1,3]
66; CHECK-NEXT:    retq
67  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 0, i32 3>
68  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 1, i32 2, i32 0, i32 3>
69  ret <4 x i32> %2
70}
71
72define <4 x i32> @swizzle_7(<4 x i32> %v) {
73; CHECK-LABEL: swizzle_7:
74; CHECK:       # %bb.0:
75; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,3,1]
76; CHECK-NEXT:    retq
77  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 0, i32 3, i32 1, i32 2>
78  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 0, i32 3, i32 1, i32 2>
79  ret <4 x i32> %2
80}
81
82define <4 x i32> @swizzle_8(<4 x i32> %v) {
83; CHECK-LABEL: swizzle_8:
84; CHECK:       # %bb.0:
85; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,3,2,0]
86; CHECK-NEXT:    retq
87  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
88  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
89  ret <4 x i32> %2
90}
91
92define <4 x i32> @swizzle_9(<4 x i32> %v) {
93; CHECK-LABEL: swizzle_9:
94; CHECK:       # %bb.0:
95; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[2,3,0,1]
96; CHECK-NEXT:    retq
97  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
98  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
99  ret <4 x i32> %2
100}
101
102define <4 x i32> @swizzle_10(<4 x i32> %v) {
103; CHECK-LABEL: swizzle_10:
104; CHECK:       # %bb.0:
105; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,2,0,3]
106; CHECK-NEXT:    retq
107  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 2, i32 0, i32 1, i32 3>
108  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 2, i32 0, i32 1, i32 3>
109  ret <4 x i32> %2
110}
111
112define <4 x i32> @swizzle_11(<4 x i32> %v) {
113; CHECK-LABEL: swizzle_11:
114; CHECK:       # %bb.0:
115; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,2,1,0]
116; CHECK-NEXT:    retq
117  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 2, i32 0, i32 3, i32 1>
118  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 2, i32 0, i32 3, i32 1>
119  ret <4 x i32> %2
120}
121
122define <4 x i32> @swizzle_12(<4 x i32> %v) {
123; CHECK-LABEL: swizzle_12:
124; CHECK:       # %bb.0:
125; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,3,1,2]
126; CHECK-NEXT:    retq
127  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 0, i32 2, i32 3, i32 1>
128  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 0, i32 2, i32 3, i32 1>
129  ret <4 x i32> %2
130}
131
132define <4 x i32> @swizzle_13(<4 x i32> %v) {
133; CHECK-LABEL: swizzle_13:
134; CHECK:       # %bb.0:
135; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,2,1,0]
136; CHECK-NEXT:    retq
137  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
138  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
139  ret <4 x i32> %2
140}
141
142define <4 x i32> @swizzle_14(<4 x i32> %v) {
143; CHECK-LABEL: swizzle_14:
144; CHECK:       # %bb.0:
145; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,0,2,1]
146; CHECK-NEXT:    retq
147  %1 = shufflevector <4 x i32> %v, <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 2, i32 0>
148  %2 = shufflevector <4 x i32> %1, <4 x i32> undef, <4 x i32> <i32 1, i32 3, i32 2, i32 0>
149  ret <4 x i32> %2
150}
151
152define <4 x float> @swizzle_15(<4 x float> %v) {
153; CHECK-LABEL: swizzle_15:
154; CHECK:       # %bb.0:
155; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,0,3,2]
156; CHECK-NEXT:    retq
157  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 3, i32 2, i32 0, i32 1>
158  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 2, i32 0, i32 1>
159  ret <4 x float> %2
160}
161
162define <4 x float> @swizzle_16(<4 x float> %v) {
163; CHECK-LABEL: swizzle_16:
164; CHECK:       # %bb.0:
165; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[2,1,3,0]
166; CHECK-NEXT:    retq
167  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 3, i32 1, i32 0, i32 2>
168  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 1, i32 0, i32 2>
169  ret <4 x float> %2
170}
171
172define <4 x float> @swizzle_17(<4 x float> %v) {
173; CHECK-LABEL: swizzle_17:
174; CHECK:       # %bb.0:
175; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,0,3,2]
176; CHECK-NEXT:    retq
177  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 2, i32 3, i32 1, i32 0>
178  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 2, i32 3, i32 1, i32 0>
179  ret <4 x float> %2
180}
181
182define <4 x float> @swizzle_18(<4 x float> %v) {
183; CHECK-LABEL: swizzle_18:
184; CHECK:       # %bb.0:
185; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[3,1,0,2]
186; CHECK-NEXT:    retq
187  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 2, i32 1, i32 3, i32 0>
188  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 2, i32 1, i32 3, i32 0>
189  ret <4 x float> %2
190}
191
192define <4 x float> @swizzle_19(<4 x float> %v) {
193; CHECK-LABEL: swizzle_19:
194; CHECK:       # %bb.0:
195; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[2,3,0,1]
196; CHECK-NEXT:    retq
197  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
198  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 1, i32 2, i32 3, i32 0>
199  ret <4 x float> %2
200}
201
202define <4 x float> @swizzle_20(<4 x float> %v) {
203; CHECK-LABEL: swizzle_20:
204; CHECK:       # %bb.0:
205; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[2,0,1,3]
206; CHECK-NEXT:    retq
207  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 1, i32 2, i32 0, i32 3>
208  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 1, i32 2, i32 0, i32 3>
209  ret <4 x float> %2
210}
211
212define <4 x float> @swizzle_21(<4 x float> %v) {
213; CHECK-LABEL: swizzle_21:
214; CHECK:       # %bb.0:
215; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,2,3,1]
216; CHECK-NEXT:    retq
217  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 0, i32 3, i32 1, i32 2>
218  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 0, i32 3, i32 1, i32 2>
219  ret <4 x float> %2
220}
221
222define <4 x float> @swizzle_22(<4 x float> %v) {
223; CHECK-LABEL: swizzle_22:
224; CHECK:       # %bb.0:
225; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,3,2,0]
226; CHECK-NEXT:    retq
227  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
228  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1>
229  ret <4 x float> %2
230}
231
232define <4 x float> @swizzle_23(<4 x float> %v) {
233; CHECK-LABEL: swizzle_23:
234; CHECK:       # %bb.0:
235; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[2,3,0,1]
236; CHECK-NEXT:    retq
237  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
238  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
239  ret <4 x float> %2
240}
241
242define <4 x float> @swizzle_24(<4 x float> %v) {
243; CHECK-LABEL: swizzle_24:
244; CHECK:       # %bb.0:
245; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,2,0,3]
246; CHECK-NEXT:    retq
247  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 2, i32 0, i32 1, i32 3>
248  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 2, i32 0, i32 1, i32 3>
249  ret <4 x float> %2
250}
251
252define <4 x float> @swizzle_25(<4 x float> %v) {
253; CHECK-LABEL: swizzle_25:
254; CHECK:       # %bb.0:
255; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[3,2,1,0]
256; CHECK-NEXT:    retq
257  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 2, i32 0, i32 3, i32 1>
258  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 2, i32 0, i32 3, i32 1>
259  ret <4 x float> %2
260}
261
262define <4 x float> @swizzle_26(<4 x float> %v) {
263; CHECK-LABEL: swizzle_26:
264; CHECK:       # %bb.0:
265; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,3,1,2]
266; CHECK-NEXT:    retq
267  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 0, i32 2, i32 3, i32 1>
268  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 0, i32 2, i32 3, i32 1>
269  ret <4 x float> %2
270}
271
272define <4 x float> @swizzle_27(<4 x float> %v) {
273; CHECK-LABEL: swizzle_27:
274; CHECK:       # %bb.0:
275; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[3,2,1,0]
276; CHECK-NEXT:    retq
277  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
278  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 1, i32 3, i32 0, i32 2>
279  ret <4 x float> %2
280}
281
282define <4 x float> @swizzle_28(<4 x float> %v) {
283; CHECK-LABEL: swizzle_28:
284; CHECK:       # %bb.0:
285; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[3,0,2,1]
286; CHECK-NEXT:    retq
287  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 1, i32 3, i32 2, i32 0>
288  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 1, i32 3, i32 2, i32 0>
289  ret <4 x float> %2
290}
291
292define <4 x float> @swizzle_29(<4 x float> %v) {
293; CHECK-LABEL: swizzle_29:
294; CHECK:       # %bb.0:
295; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,3,2,0]
296; CHECK-NEXT:    retq
297  %1 = shufflevector <4 x float> %v, <4 x float> undef, <4 x i32> <i32 3, i32 1, i32 2, i32 0>
298  %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 1, i32 0, i32 2, i32 3>
299  ret <4 x float> %2
300}
301
302; Make sure that we combine the shuffles from each function below into a single
303; legal shuffle (either pshuflw or pshufb depending on the masks).
304
305define <8 x i16> @swizzle_30(<8 x i16> %v) {
306; CHECK-LABEL: swizzle_30:
307; CHECK:       # %bb.0:
308; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,3,2,0,4,5,6,7]
309; CHECK-NEXT:    retq
310  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 3, i32 1, i32 2, i32 0, i32 7, i32 5, i32 6, i32 4>
311  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 1, i32 0, i32 2, i32 3, i32 7, i32 5, i32 6, i32 4>
312  ret <8 x i16> %2
313}
314
315define <8 x i16> @swizzle_31(<8 x i16> %v) {
316; CHECK-LABEL: swizzle_31:
317; CHECK:       # %bb.0:
318; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,3,2,0,4,5,6,7]
319; CHECK-NEXT:    retq
320  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 3, i32 0, i32 2, i32 1, i32 7, i32 5, i32 6, i32 4>
321  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 3, i32 0, i32 2, i32 1, i32 7, i32 5, i32 6, i32 4>
322  ret <8 x i16> %2
323}
324
325define <8 x i16> @swizzle_32(<8 x i16> %v) {
326; CHECK-LABEL: swizzle_32:
327; CHECK:       # %bb.0:
328; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[1,0,2,3]
329; CHECK-NEXT:    retq
330  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 1, i32 2, i32 3, i32 0, i32 7, i32 5, i32 6, i32 4>
331  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 1, i32 2, i32 3, i32 0, i32 7, i32 5, i32 6, i32 4>
332  ret <8 x i16> %2
333}
334
335define <8 x i16> @swizzle_33(<8 x i16> %v) {
336; CHECK-LABEL: swizzle_33:
337; CHECK:       # %bb.0:
338; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,1,3,0,4,5,6,7]
339; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,5,7,6,4]
340; CHECK-NEXT:    retq
341  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 4, i32 6, i32 5, i32 7, i32 2, i32 3, i32 1, i32 0>
342  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 4, i32 6, i32 5, i32 7, i32 2, i32 3, i32 1, i32 0>
343  ret <8 x i16> %2
344}
345
346define <8 x i16> @swizzle_34(<8 x i16> %v) {
347; CHECK-LABEL: swizzle_34:
348; CHECK:       # %bb.0:
349; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[1,3,0,2,4,5,6,7]
350; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,7,6,4,5]
351; CHECK-NEXT:    retq
352  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 4, i32 7, i32 6, i32 5, i32 1, i32 2, i32 0, i32 3>
353  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 4, i32 7, i32 6, i32 5, i32 1, i32 2, i32 0, i32 3>
354  ret <8 x i16> %2
355}
356
357define <8 x i16> @swizzle_35(<8 x i16> %v) {
358; CHECK-LABEL: swizzle_35:
359; CHECK:       # %bb.0:
360; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,1,0,3,4,5,6,7]
361; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,5,7,6]
362; CHECK-NEXT:    retq
363  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 7, i32 4, i32 6, i32 5, i32 1, i32 3, i32 0, i32 2>
364  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 7, i32 4, i32 6, i32 5, i32 1, i32 3, i32 0, i32 2>
365  ret <8 x i16> %2
366}
367
368define <8 x i16> @swizzle_36(<8 x i16> %v) {
369; CHECK-LABEL: swizzle_36:
370; CHECK:       # %bb.0:
371; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[0,3,2,1,4,5,6,7]
372; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,5,7]
373; CHECK-NEXT:    retq
374  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 4, i32 6, i32 7, i32 5, i32 0, i32 1, i32 3, i32 2>
375  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 4, i32 6, i32 7, i32 5, i32 0, i32 1, i32 3, i32 2>
376  ret <8 x i16> %2
377}
378
379define <8 x i16> @swizzle_37(<8 x i16> %v) {
380; CHECK-LABEL: swizzle_37:
381; CHECK:       # %bb.0:
382; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,7,6,5]
383; CHECK-NEXT:    retq
384  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 1, i32 0, i32 3, i32 2, i32 7, i32 5, i32 6, i32 4>
385  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 1, i32 0, i32 3, i32 2, i32 7, i32 4, i32 6, i32 5>
386  ret <8 x i16> %2
387}
388
389define <8 x i16> @swizzle_38(<8 x i16> %v) {
390; CHECK-LABEL: swizzle_38:
391; CHECK:       # %bb.0:
392; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,1,0,3,4,5,6,7]
393; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,5,4,6,7]
394; CHECK-NEXT:    retq
395  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 5, i32 6, i32 4, i32 7, i32 0, i32 2, i32 1, i32 3>
396  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 5, i32 6, i32 4, i32 7, i32 0, i32 2, i32 1, i32 3>
397  ret <8 x i16> %2
398}
399
400define <8 x i16> @swizzle_39(<8 x i16> %v) {
401; CHECK-LABEL: swizzle_39:
402; CHECK:       # %bb.0:
403; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[2,3,1,0,4,5,6,7]
404; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,7,6,4,5]
405; CHECK-NEXT:    retq
406  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 5, i32 4, i32 6, i32 7, i32 3, i32 2, i32 1, i32 0>
407  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 5, i32 4, i32 6, i32 7, i32 3, i32 2, i32 1, i32 0>
408  ret <8 x i16> %2
409}
410
411define <8 x i16> @swizzle_40(<8 x i16> %v) {
412; CHECK-LABEL: swizzle_40:
413; CHECK:       # %bb.0:
414; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,1,2,0,4,5,6,7]
415; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,5,7]
416; CHECK-NEXT:    retq
417  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 6, i32 4, i32 7, i32 5, i32 1, i32 0, i32 3, i32 2>
418  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 6, i32 4, i32 7, i32 5, i32 1, i32 0, i32 3, i32 2>
419  ret <8 x i16> %2
420}
421
422define <8 x i16> @swizzle_41(<8 x i16> %v) {
423; CHECK-LABEL: swizzle_41:
424; CHECK:       # %bb.0:
425; CHECK-NEXT:    pshuflw {{.*#+}} xmm0 = xmm0[3,2,1,0,4,5,6,7]
426; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,1,3,2]
427; CHECK-NEXT:    retq
428  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 6, i32 7, i32 5, i32 4, i32 0, i32 1, i32 3, i32 2>
429  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 6, i32 7, i32 5, i32 4, i32 0, i32 1, i32 3, i32 2>
430  ret <8 x i16> %2
431}
432
433define <8 x i16> @swizzle_42(<8 x i16> %v) {
434; CHECK-LABEL: swizzle_42:
435; CHECK:       # %bb.0:
436; CHECK-NEXT:    pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,5,4,7,6]
437; CHECK-NEXT:    retq
438  %1 = shufflevector <8 x i16> %v, <8 x i16> undef, <8 x i32> <i32 0, i32 1, i32 3, i32 2, i32 7, i32 6, i32 4, i32 5>
439  %2 = shufflevector <8 x i16> %1, <8 x i16> undef, <8 x i32> <i32 0, i32 1, i32 3, i32 2, i32 7, i32 6, i32 4, i32 5>
440  ret <8 x i16> %2
441}
442