1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -basic-aa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
3
4define void @tiny_tree_fully_vectorizable(double* noalias nocapture %dst, double* noalias nocapture readonly %src, i64 %count) #0 {
5; CHECK-LABEL: @tiny_tree_fully_vectorizable(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    [[CMP12:%.*]] = icmp eq i64 [[COUNT:%.*]], 0
8; CHECK-NEXT:    br i1 [[CMP12]], label [[FOR_END:%.*]], label [[FOR_BODY:%.*]]
9; CHECK:       for.body:
10; CHECK-NEXT:    [[I_015:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
11; CHECK-NEXT:    [[DST_ADDR_014:%.*]] = phi double* [ [[ADD_PTR4:%.*]], [[FOR_BODY]] ], [ [[DST:%.*]], [[ENTRY]] ]
12; CHECK-NEXT:    [[SRC_ADDR_013:%.*]] = phi double* [ [[ADD_PTR:%.*]], [[FOR_BODY]] ], [ [[SRC:%.*]], [[ENTRY]] ]
13; CHECK-NEXT:    [[TMP0:%.*]] = bitcast double* [[SRC_ADDR_013]] to <2 x double>*
14; CHECK-NEXT:    [[TMP1:%.*]] = load <2 x double>, <2 x double>* [[TMP0]], align 8
15; CHECK-NEXT:    [[TMP2:%.*]] = bitcast double* [[DST_ADDR_014]] to <2 x double>*
16; CHECK-NEXT:    store <2 x double> [[TMP1]], <2 x double>* [[TMP2]], align 8
17; CHECK-NEXT:    [[ADD_PTR]] = getelementptr inbounds double, double* [[SRC_ADDR_013]], i64 [[I_015]]
18; CHECK-NEXT:    [[ADD_PTR4]] = getelementptr inbounds double, double* [[DST_ADDR_014]], i64 [[I_015]]
19; CHECK-NEXT:    [[INC]] = add i64 [[I_015]], 1
20; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[COUNT]]
21; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]]
22; CHECK:       for.end:
23; CHECK-NEXT:    ret void
24;
25entry:
26  %cmp12 = icmp eq i64 %count, 0
27  br i1 %cmp12, label %for.end, label %for.body
28
29for.body:                                         ; preds = %entry, %for.body
30  %i.015 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
31  %dst.addr.014 = phi double* [ %add.ptr4, %for.body ], [ %dst, %entry ]
32  %src.addr.013 = phi double* [ %add.ptr, %for.body ], [ %src, %entry ]
33  %0 = load double, double* %src.addr.013, align 8
34  store double %0, double* %dst.addr.014, align 8
35  %arrayidx2 = getelementptr inbounds double, double* %src.addr.013, i64 1
36  %1 = load double, double* %arrayidx2, align 8
37  %arrayidx3 = getelementptr inbounds double, double* %dst.addr.014, i64 1
38  store double %1, double* %arrayidx3, align 8
39  %add.ptr = getelementptr inbounds double, double* %src.addr.013, i64 %i.015
40  %add.ptr4 = getelementptr inbounds double, double* %dst.addr.014, i64 %i.015
41  %inc = add i64 %i.015, 1
42  %exitcond = icmp eq i64 %inc, %count
43  br i1 %exitcond, label %for.end, label %for.body
44
45for.end:                                          ; preds = %for.body, %entry
46  ret void
47}
48
49define void @tiny_tree_fully_vectorizable2(float* noalias nocapture %dst, float* noalias nocapture readonly %src, i64 %count) #0 {
50; CHECK-LABEL: @tiny_tree_fully_vectorizable2(
51; CHECK-NEXT:  entry:
52; CHECK-NEXT:    [[CMP20:%.*]] = icmp eq i64 [[COUNT:%.*]], 0
53; CHECK-NEXT:    br i1 [[CMP20]], label [[FOR_END:%.*]], label [[FOR_BODY:%.*]]
54; CHECK:       for.body:
55; CHECK-NEXT:    [[I_023:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
56; CHECK-NEXT:    [[DST_ADDR_022:%.*]] = phi float* [ [[ADD_PTR8:%.*]], [[FOR_BODY]] ], [ [[DST:%.*]], [[ENTRY]] ]
57; CHECK-NEXT:    [[SRC_ADDR_021:%.*]] = phi float* [ [[ADD_PTR:%.*]], [[FOR_BODY]] ], [ [[SRC:%.*]], [[ENTRY]] ]
58; CHECK-NEXT:    [[TMP0:%.*]] = bitcast float* [[SRC_ADDR_021]] to <4 x float>*
59; CHECK-NEXT:    [[TMP1:%.*]] = load <4 x float>, <4 x float>* [[TMP0]], align 4
60; CHECK-NEXT:    [[TMP2:%.*]] = bitcast float* [[DST_ADDR_022]] to <4 x float>*
61; CHECK-NEXT:    store <4 x float> [[TMP1]], <4 x float>* [[TMP2]], align 4
62; CHECK-NEXT:    [[ADD_PTR]] = getelementptr inbounds float, float* [[SRC_ADDR_021]], i64 [[I_023]]
63; CHECK-NEXT:    [[ADD_PTR8]] = getelementptr inbounds float, float* [[DST_ADDR_022]], i64 [[I_023]]
64; CHECK-NEXT:    [[INC]] = add i64 [[I_023]], 1
65; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[COUNT]]
66; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]]
67; CHECK:       for.end:
68; CHECK-NEXT:    ret void
69;
70entry:
71  %cmp20 = icmp eq i64 %count, 0
72  br i1 %cmp20, label %for.end, label %for.body
73
74for.body:                                         ; preds = %entry, %for.body
75  %i.023 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
76  %dst.addr.022 = phi float* [ %add.ptr8, %for.body ], [ %dst, %entry ]
77  %src.addr.021 = phi float* [ %add.ptr, %for.body ], [ %src, %entry ]
78  %0 = load float, float* %src.addr.021, align 4
79  store float %0, float* %dst.addr.022, align 4
80  %arrayidx2 = getelementptr inbounds float, float* %src.addr.021, i64 1
81  %1 = load float, float* %arrayidx2, align 4
82  %arrayidx3 = getelementptr inbounds float, float* %dst.addr.022, i64 1
83  store float %1, float* %arrayidx3, align 4
84  %arrayidx4 = getelementptr inbounds float, float* %src.addr.021, i64 2
85  %2 = load float, float* %arrayidx4, align 4
86  %arrayidx5 = getelementptr inbounds float, float* %dst.addr.022, i64 2
87  store float %2, float* %arrayidx5, align 4
88  %arrayidx6 = getelementptr inbounds float, float* %src.addr.021, i64 3
89  %3 = load float, float* %arrayidx6, align 4
90  %arrayidx7 = getelementptr inbounds float, float* %dst.addr.022, i64 3
91  store float %3, float* %arrayidx7, align 4
92  %add.ptr = getelementptr inbounds float, float* %src.addr.021, i64 %i.023
93  %add.ptr8 = getelementptr inbounds float, float* %dst.addr.022, i64 %i.023
94  %inc = add i64 %i.023, 1
95  %exitcond = icmp eq i64 %inc, %count
96  br i1 %exitcond, label %for.end, label %for.body
97
98for.end:                                          ; preds = %for.body, %entry
99  ret void
100}
101
102; We do not vectorize the tiny tree which is not fully vectorizable.
103
104define void @tiny_tree_not_fully_vectorizable(double* noalias nocapture %dst, double* noalias nocapture readonly %src, i64 %count) #0 {
105; CHECK-LABEL: @tiny_tree_not_fully_vectorizable(
106; CHECK-NEXT:  entry:
107; CHECK-NEXT:    [[CMP12:%.*]] = icmp eq i64 [[COUNT:%.*]], 0
108; CHECK-NEXT:    br i1 [[CMP12]], label [[FOR_END:%.*]], label [[FOR_BODY:%.*]]
109; CHECK:       for.body:
110; CHECK-NEXT:    [[I_015:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
111; CHECK-NEXT:    [[DST_ADDR_014:%.*]] = phi double* [ [[ADD_PTR4:%.*]], [[FOR_BODY]] ], [ [[DST:%.*]], [[ENTRY]] ]
112; CHECK-NEXT:    [[SRC_ADDR_013:%.*]] = phi double* [ [[ADD_PTR:%.*]], [[FOR_BODY]] ], [ [[SRC:%.*]], [[ENTRY]] ]
113; CHECK-NEXT:    [[TMP0:%.*]] = load double, double* [[SRC_ADDR_013]], align 8
114; CHECK-NEXT:    store double [[TMP0]], double* [[DST_ADDR_014]], align 8
115; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds double, double* [[SRC_ADDR_013]], i64 2
116; CHECK-NEXT:    [[TMP1:%.*]] = load double, double* [[ARRAYIDX2]], align 8
117; CHECK-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds double, double* [[DST_ADDR_014]], i64 1
118; CHECK-NEXT:    store double [[TMP1]], double* [[ARRAYIDX3]], align 8
119; CHECK-NEXT:    [[ADD_PTR]] = getelementptr inbounds double, double* [[SRC_ADDR_013]], i64 [[I_015]]
120; CHECK-NEXT:    [[ADD_PTR4]] = getelementptr inbounds double, double* [[DST_ADDR_014]], i64 [[I_015]]
121; CHECK-NEXT:    [[INC]] = add i64 [[I_015]], 1
122; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[COUNT]]
123; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]]
124; CHECK:       for.end:
125; CHECK-NEXT:    ret void
126;
127entry:
128  %cmp12 = icmp eq i64 %count, 0
129  br i1 %cmp12, label %for.end, label %for.body
130
131for.body:                                         ; preds = %entry, %for.body
132  %i.015 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
133  %dst.addr.014 = phi double* [ %add.ptr4, %for.body ], [ %dst, %entry ]
134  %src.addr.013 = phi double* [ %add.ptr, %for.body ], [ %src, %entry ]
135  %0 = load double, double* %src.addr.013, align 8
136  store double %0, double* %dst.addr.014, align 8
137  %arrayidx2 = getelementptr inbounds double, double* %src.addr.013, i64 2
138  %1 = load double, double* %arrayidx2, align 8
139  %arrayidx3 = getelementptr inbounds double, double* %dst.addr.014, i64 1
140  store double %1, double* %arrayidx3, align 8
141  %add.ptr = getelementptr inbounds double, double* %src.addr.013, i64 %i.015
142  %add.ptr4 = getelementptr inbounds double, double* %dst.addr.014, i64 %i.015
143  %inc = add i64 %i.015, 1
144  %exitcond = icmp eq i64 %inc, %count
145  br i1 %exitcond, label %for.end, label %for.body
146
147for.end:                                          ; preds = %for.body, %entry
148  ret void
149}
150
151define void @tiny_tree_not_fully_vectorizable2(float* noalias nocapture %dst, float* noalias nocapture readonly %src, i64 %count) #0 {
152; CHECK-LABEL: @tiny_tree_not_fully_vectorizable2(
153; CHECK-NEXT:  entry:
154; CHECK-NEXT:    [[CMP20:%.*]] = icmp eq i64 [[COUNT:%.*]], 0
155; CHECK-NEXT:    br i1 [[CMP20]], label [[FOR_END:%.*]], label [[FOR_BODY:%.*]]
156; CHECK:       for.body:
157; CHECK-NEXT:    [[I_023:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
158; CHECK-NEXT:    [[DST_ADDR_022:%.*]] = phi float* [ [[ADD_PTR8:%.*]], [[FOR_BODY]] ], [ [[DST:%.*]], [[ENTRY]] ]
159; CHECK-NEXT:    [[SRC_ADDR_021:%.*]] = phi float* [ [[ADD_PTR:%.*]], [[FOR_BODY]] ], [ [[SRC:%.*]], [[ENTRY]] ]
160; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds float, float* [[SRC_ADDR_021]], i64 4
161; CHECK-NEXT:    [[ARRAYIDX4:%.*]] = getelementptr inbounds float, float* [[SRC_ADDR_021]], i64 2
162; CHECK-NEXT:    [[TMP0:%.*]] = load float, float* [[SRC_ADDR_021]], align 4
163; CHECK-NEXT:    [[TMP1:%.*]] = load float, float* [[ARRAYIDX2]], align 4
164; CHECK-NEXT:    [[TMP2:%.*]] = bitcast float* [[ARRAYIDX4]] to <2 x float>*
165; CHECK-NEXT:    [[TMP3:%.*]] = load <2 x float>, <2 x float>* [[TMP2]], align 4
166; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x float> poison, float [[TMP0]], i32 0
167; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x float> [[TMP4]], float [[TMP1]], i32 1
168; CHECK-NEXT:    [[TMP6:%.*]] = shufflevector <2 x float> [[TMP3]], <2 x float> poison, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
169; CHECK-NEXT:    [[TMP7:%.*]] = shufflevector <4 x float> [[TMP5]], <4 x float> [[TMP6]], <4 x i32> <i32 0, i32 1, i32 4, i32 5>
170; CHECK-NEXT:    [[TMP8:%.*]] = bitcast float* [[DST_ADDR_022]] to <4 x float>*
171; CHECK-NEXT:    store <4 x float> [[TMP7]], <4 x float>* [[TMP8]], align 4
172; CHECK-NEXT:    [[ADD_PTR]] = getelementptr inbounds float, float* [[SRC_ADDR_021]], i64 [[I_023]]
173; CHECK-NEXT:    [[ADD_PTR8]] = getelementptr inbounds float, float* [[DST_ADDR_022]], i64 [[I_023]]
174; CHECK-NEXT:    [[INC]] = add i64 [[I_023]], 1
175; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[COUNT]]
176; CHECK-NEXT:    br i1 [[EXITCOND]], label [[FOR_END]], label [[FOR_BODY]]
177; CHECK:       for.end:
178; CHECK-NEXT:    ret void
179;
180entry:
181  %cmp20 = icmp eq i64 %count, 0
182  br i1 %cmp20, label %for.end, label %for.body
183
184for.body:                                         ; preds = %entry, %for.body
185  %i.023 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
186  %dst.addr.022 = phi float* [ %add.ptr8, %for.body ], [ %dst, %entry ]
187  %src.addr.021 = phi float* [ %add.ptr, %for.body ], [ %src, %entry ]
188  %0 = load float, float* %src.addr.021, align 4
189  store float %0, float* %dst.addr.022, align 4
190  %arrayidx2 = getelementptr inbounds float, float* %src.addr.021, i64 4
191  %1 = load float, float* %arrayidx2, align 4
192  %arrayidx3 = getelementptr inbounds float, float* %dst.addr.022, i64 1
193  store float %1, float* %arrayidx3, align 4
194  %arrayidx4 = getelementptr inbounds float, float* %src.addr.021, i64 2
195  %2 = load float, float* %arrayidx4, align 4
196  %arrayidx5 = getelementptr inbounds float, float* %dst.addr.022, i64 2
197  store float %2, float* %arrayidx5, align 4
198  %arrayidx6 = getelementptr inbounds float, float* %src.addr.021, i64 3
199  %3 = load float, float* %arrayidx6, align 4
200  %arrayidx7 = getelementptr inbounds float, float* %dst.addr.022, i64 3
201  store float %3, float* %arrayidx7, align 4
202  %add.ptr = getelementptr inbounds float, float* %src.addr.021, i64 %i.023
203  %add.ptr8 = getelementptr inbounds float, float* %dst.addr.022, i64 %i.023
204  %inc = add i64 %i.023, 1
205  %exitcond = icmp eq i64 %inc, %count
206  br i1 %exitcond, label %for.end, label %for.body
207
208for.end:                                          ; preds = %for.body, %entry
209  ret void
210}
211
212define void @store_splat(float*, float) {
213; CHECK-LABEL: @store_splat(
214; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds float, float* [[TMP0:%.*]], i64 0
215; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x float> poison, float [[TMP1:%.*]], i32 0
216; CHECK-NEXT:    [[SHUFFLE:%.*]] = shufflevector <4 x float> [[TMP4]], <4 x float> poison, <4 x i32> zeroinitializer
217; CHECK-NEXT:    [[TMP5:%.*]] = bitcast float* [[TMP3]] to <4 x float>*
218; CHECK-NEXT:    store <4 x float> [[SHUFFLE]], <4 x float>* [[TMP5]], align 4
219; CHECK-NEXT:    ret void
220;
221  %3 = getelementptr inbounds float, float* %0, i64 0
222  store float %1, float* %3, align 4
223  %4 = getelementptr inbounds float, float* %0, i64 1
224  store float %1, float* %4, align 4
225  %5 = getelementptr inbounds float, float* %0, i64 2
226  store float %1, float* %5, align 4
227  %6 = getelementptr inbounds float, float* %0, i64 3
228  store float %1, float* %6, align 4
229  ret void
230}
231
232define void @store_const(i32* %a) {
233; CHECK-LABEL: @store_const(
234; CHECK-NEXT:  entry:
235; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 0
236; CHECK-NEXT:    [[TMP0:%.*]] = bitcast i32* [[PTR0]] to <4 x i32>*
237; CHECK-NEXT:    store <4 x i32> <i32 10, i32 30, i32 20, i32 40>, <4 x i32>* [[TMP0]], align 4
238; CHECK-NEXT:    ret void
239;
240entry:
241  %ptr0 = getelementptr inbounds i32, i32* %a, i64 0
242  store i32 10, i32* %ptr0, align 4
243  %ptr1 = getelementptr inbounds i32, i32* %a, i64 1
244  store i32 30, i32* %ptr1, align 4
245  %ptr2 = getelementptr inbounds i32, i32* %a, i64 2
246  store i32 20, i32* %ptr2, align 4
247  %ptr3 = getelementptr inbounds i32, i32* %a, i64 3
248  store i32 40, i32* %ptr3, align 4
249  ret void
250}
251
252define void @tiny_vector_gather(i32 *%a, i32 *%v1, i32 *%v2) {
253; CHECK-LABEL: @tiny_vector_gather(
254; CHECK-NEXT:    [[TMP1:%.*]] = load i32, i32* [[V1:%.*]], align 4
255; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* [[V2:%.*]], align 4
256; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 0
257; CHECK-NEXT:    store i32 [[TMP1]], i32* [[PTR0]], align 16
258; CHECK-NEXT:    [[PTR1:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 1
259; CHECK-NEXT:    store i32 [[TMP2]], i32* [[PTR1]], align 4
260; CHECK-NEXT:    [[PTR2:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 2
261; CHECK-NEXT:    store i32 [[TMP1]], i32* [[PTR2]], align 8
262; CHECK-NEXT:    [[PTR3:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 3
263; CHECK-NEXT:    store i32 [[TMP2]], i32* [[PTR3]], align 4
264; CHECK-NEXT:    [[PTR4:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 4
265; CHECK-NEXT:    store i32 [[TMP1]], i32* [[PTR4]], align 16
266; CHECK-NEXT:    [[PTR5:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 5
267; CHECK-NEXT:    store i32 [[TMP2]], i32* [[PTR5]], align 4
268; CHECK-NEXT:    [[PTR6:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 6
269; CHECK-NEXT:    store i32 [[TMP1]], i32* [[PTR6]], align 8
270; CHECK-NEXT:    [[PTR7:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 7
271; CHECK-NEXT:    store i32 [[TMP2]], i32* [[PTR7]], align 4
272; CHECK-NEXT:    ret void
273;
274  %1 = load i32, i32* %v1, align 4
275  %2 = load i32, i32* %v2, align 4
276  %ptr0 = getelementptr inbounds i32, i32* %a, i64 0
277  store i32 %1, i32* %ptr0, align 16
278  %ptr1 = getelementptr inbounds i32, i32* %a, i64 1
279  store i32 %2, i32* %ptr1, align 4
280  %ptr2 = getelementptr inbounds i32, i32* %a, i64 2
281  store i32 %1, i32* %ptr2, align 8
282  %ptr3 = getelementptr inbounds i32, i32* %a, i64 3
283  store i32 %2, i32* %ptr3, align 4
284  %ptr4 = getelementptr inbounds i32, i32* %a, i64 4
285  store i32 %1, i32* %ptr4, align 16
286  %ptr5 = getelementptr inbounds i32, i32* %a, i64 5
287  store i32 %2, i32* %ptr5, align 4
288  %ptr6 = getelementptr inbounds i32, i32* %a, i64 6
289  store i32 %1, i32* %ptr6, align 8
290  %ptr7 = getelementptr inbounds i32, i32* %a, i64 7
291  store i32 %2, i32* %ptr7, align 4
292  ret void
293}
294
295define void @tiny_vector_with_diff_opcode(i16 *%a, i16 *%v1) {
296; CHECK-LABEL: @tiny_vector_with_diff_opcode(
297; CHECK-NEXT:    [[TMP1:%.*]] = load i16, i16* [[V1:%.*]], align 4
298; CHECK-NEXT:    [[TMP2:%.*]] = trunc i64 undef to i16
299; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr inbounds i16, i16* [[A:%.*]], i64 0
300; CHECK-NEXT:    [[TMP3:%.*]] = insertelement <8 x i16> poison, i16 [[TMP1]], i32 0
301; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <8 x i16> [[TMP3]], i16 [[TMP2]], i32 1
302; CHECK-NEXT:    [[SHUFFLE:%.*]] = shufflevector <8 x i16> [[TMP4]], <8 x i16> poison, <8 x i32> <i32 0, i32 1, i32 0, i32 1, i32 0, i32 1, i32 0, i32 1>
303; CHECK-NEXT:    [[TMP5:%.*]] = bitcast i16* [[PTR0]] to <8 x i16>*
304; CHECK-NEXT:    store <8 x i16> [[SHUFFLE]], <8 x i16>* [[TMP5]], align 16
305; CHECK-NEXT:    ret void
306;
307  %1 = load i16, i16* %v1, align 4
308  %2 = trunc i64 undef to i16
309  %ptr0 = getelementptr inbounds i16, i16* %a, i64 0
310  store i16 %1, i16* %ptr0, align 16
311  %ptr1 = getelementptr inbounds i16, i16* %a, i64 1
312  store i16 %2, i16* %ptr1, align 4
313  %ptr2 = getelementptr inbounds i16, i16* %a, i64 2
314  store i16 %1, i16* %ptr2, align 8
315  %ptr3 = getelementptr inbounds i16, i16* %a, i64 3
316  store i16 %2, i16* %ptr3, align 4
317  %ptr4 = getelementptr inbounds i16, i16* %a, i64 4
318  store i16 %1, i16* %ptr4, align 16
319  %ptr5 = getelementptr inbounds i16, i16* %a, i64 5
320  store i16 %2, i16* %ptr5, align 4
321  %ptr6 = getelementptr inbounds i16, i16* %a, i64 6
322  store i16 %1, i16* %ptr6, align 8
323  %ptr7 = getelementptr inbounds i16, i16* %a, i64 7
324  store i16 %2, i16* %ptr7, align 4
325  ret void
326}
327