1; RUN: opt -S -mtriple=amdgcn-amd-amdhsa -amdgpu-rewrite-out-arguments < %s | FileCheck %s
2
3; CHECK: %void_one_out_arg_i32_1_use = type { i32 }
4; CHECK: %void_one_out_arg_i32_1_use_align = type { i32 }
5; CHECK: %void_one_out_arg_i32_2_use = type { i32 }
6; CHECK: %void_one_out_arg_i32_2_stores = type { i32 }
7; CHECK: %void_one_out_arg_i32_2_stores_clobber = type { i32 }
8; CHECK: %void_one_out_arg_i32_pre_call_may_clobber = type { i32 }
9; CHECK: %void_one_out_arg_v2i32_1_use = type { <2 x i32> }
10; CHECK: %void_one_out_arg_struct_1_use = type { %struct }
11; CHECK: %struct = type { i32, i8, float }
12; CHECK: %i32_one_out_arg_i32_1_use = type { i32, i32 }
13; CHECK: %unused_different_type = type { float }
14; CHECK: %multiple_same_return_noalias = type { i32, i32 }
15; CHECK: %multiple_same_return_mayalias = type { i32, i32 }
16; CHECK: %multiple_same_return_mayalias_order = type { i32, i32 }
17; CHECK: %i1_one_out_arg_i32_1_use = type { i1, i32 }
18; CHECK: %i1_zeroext_one_out_arg_i32_1_use = type { i1, i32 }
19; CHECK: %i1_signext_one_out_arg_i32_1_use = type { i1, i32 }
20; CHECK: %p1i32_noalias_one_out_arg_i32_1_use = type { i32 addrspace(1)*, i32 }
21; CHECK: %func_ptr_type = type { void ()* }
22; CHECK: %bitcast_func_ptr_type = type { void ()* }
23; CHECK: %out_arg_small_array = type { [4 x i32] }
24; CHECK: %num_regs_reach_limit = type { [15 x i32], i32 }
25; CHECK: %num_regs_reach_limit_leftover = type { [15 x i32], i32, i32 }
26; CHECK: %preserve_debug_info = type { i32 }
27; CHECK: %preserve_metadata = type { i32 }
28; CHECK: %bitcast_pointer_v4i32_v3i32 = type { <3 x i32> }
29; CHECK: %bitcast_pointer_v4i32_v3f32 = type { <3 x float> }
30; CHECK: %bitcast_pointer_i32_f32 = type { float }
31; CHECK: %bitcast_struct_v3f32_v3f32 = type { %struct.v3f32 }
32; CHECK: %struct.v3f32 = type { <3 x float> }
33; CHECK: %bitcast_struct_v3f32_v3i32 = type { %struct.v3f32 }
34; CHECK: %bitcast_struct_v4f32_v4f32 = type { %struct.v4f32 }
35; CHECK: %struct.v4f32 = type { <4 x float> }
36; CHECK: %bitcast_struct_v3f32_v4i32 = type { %struct.v3f32 }
37; CHECK: %bitcast_struct_v4f32_v3f32 = type { %struct.v4f32 }
38; CHECK: %struct.v3f32.f32 = type { <3 x float>, float }
39; CHECK: %bitcast_struct_i128_v4f32 = type { %struct.i128 }
40; CHECK: %struct.i128 = type { i128 }
41; CHECK: %multi_return_bitcast_struct_v3f32_v3f32 = type { %struct.v3f32 }
42
43; CHECK-LABEL: define void @no_ret_blocks() #0 {
44; CHECK-NEXT: unreachable
45define void @no_ret_blocks() #0 {
46  unreachable
47}
48
49; CHECK-LABEL: @void_one_out_arg_i32_no_use(
50; CHECK-NEXT: ret void
51define void @void_one_out_arg_i32_no_use(i32* %val) #0 {
52  ret void
53}
54
55; CHECK-NOT: define
56; CHECK-LABEL: define void @skip_byval_arg(
57; CHECK-NEXT: store i32 0, i32* %val
58; CHECK-NEXT: ret void
59define void @skip_byval_arg(i32* byval %val) #0 {
60  store i32 0, i32* %val
61  ret void
62}
63
64; CHECK-NOT: define
65; CHECK-LABEL: define void @skip_optnone(
66; CHECK-NEXT: store i32 0, i32* %val
67; CHECK-NEXT: ret void
68define void @skip_optnone(i32* byval %val) #1 {
69  store i32 0, i32* %val
70  ret void
71}
72
73; CHECK-NOT: define
74; CHECK-LABEL: define void @skip_volatile(
75; CHECK-NEXT: store volatile i32 0, i32* %val
76; CHECK-NEXT: ret void
77define void @skip_volatile(i32* byval %val) #0 {
78  store volatile i32 0, i32* %val
79  ret void
80}
81
82; CHECK-NOT: define
83; CHECK-LABEL: define void @skip_atomic(
84; CHECK-NEXT: store atomic i32 0, i32* %val
85; CHECK-NEXT: ret void
86define void @skip_atomic(i32* byval %val) #0 {
87  store atomic i32 0, i32* %val seq_cst, align 4
88  ret void
89}
90
91; CHECK-NOT: define
92; CHECK-LABEL: define void @skip_store_pointer_val(
93; CHECK-NEXT: store i32* %val, i32** undef
94; CHECK-NEXT: ret void
95define void @skip_store_pointer_val(i32* %val) #0 {
96  store i32* %val, i32** undef
97  ret void
98}
99
100; CHECK-NOT: define
101; CHECK-LABEL: define void @skip_store_gep(
102; CHECK-NEXT: %gep = getelementptr inbounds i32, i32* %val, i32 1
103; CHECK-NEXT: store i32 0, i32* %gep
104; CHECK-NEXT: ret void
105define void @skip_store_gep(i32* %val) #0 {
106  %gep = getelementptr inbounds i32, i32* %val, i32 1
107  store i32 0, i32* %gep
108  ret void
109}
110
111; CHECK-LABEL: define void @skip_sret(i32* sret %sret, i32* %out) #0 {
112; CHECK-NEXT: store
113; CHECK-NEXT: store
114; CHECK-NEXT: ret void
115define void @skip_sret(i32* sret %sret, i32* %out) #0 {
116  store i32 1, i32* %sret
117  store i32 0, i32* %out
118  ret void
119}
120
121; CHECK-LABEL: define private %void_one_out_arg_i32_1_use @void_one_out_arg_i32_1_use.body(i32* %val) #0 {
122; CHECK-NEXT: ret %void_one_out_arg_i32_1_use zeroinitializer
123
124; CHECK-LABEL: @void_one_out_arg_i32_1_use(
125; CHECK-NEXT: %2 = call %void_one_out_arg_i32_1_use @void_one_out_arg_i32_1_use.body(i32* undef)
126; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_i32_1_use %2, 0
127; CHECK-NEXT: store i32 %3, i32* %0, align 4
128; CHECK-NEXT: ret void
129define void @void_one_out_arg_i32_1_use(i32* %val) #0 {
130  store i32 0, i32* %val
131  ret void
132}
133
134; CHECK-LABEL: define private %void_one_out_arg_i32_1_use_align @void_one_out_arg_i32_1_use_align.body(i32* align 8 %val) #0 {
135; CHECK-NEXT: ret %void_one_out_arg_i32_1_use_align zeroinitializer
136
137; CHECK-LABEL: @void_one_out_arg_i32_1_use_align(
138; CHECK-NEXT: %2 = call %void_one_out_arg_i32_1_use_align @void_one_out_arg_i32_1_use_align.body(i32* undef)
139; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_i32_1_use_align %2, 0
140; CHECK-NEXT: store i32 %3, i32* %0, align 8
141; CHECK-NEXT: ret void
142define void @void_one_out_arg_i32_1_use_align(i32* align 8 %val) #0 {
143  store i32 0, i32* %val, align 8
144  ret void
145}
146
147; CHECK-LABEL: define private %void_one_out_arg_i32_2_use @void_one_out_arg_i32_2_use.body(i1 %arg0, i32* %val) #0 {
148; CHECK: br i1 %arg0, label %ret0, label %ret1
149
150; CHECK: ret0:
151; CHECK-NEXT: ret %void_one_out_arg_i32_2_use zeroinitializer
152
153; CHECK: ret1:
154; CHECK-NEXT: ret %void_one_out_arg_i32_2_use { i32 9 }
155
156; CHECK-LABEL: define void @void_one_out_arg_i32_2_use(i1, i32*) #2 {
157; CHECK-NEXT: %3 = call %void_one_out_arg_i32_2_use @void_one_out_arg_i32_2_use.body(i1 %0, i32* undef)
158; CHECK-NEXT: %4 = extractvalue %void_one_out_arg_i32_2_use %3, 0
159; CHECK-NEXT: store i32 %4, i32* %1, align 4
160; CHECK-NEXT: ret void
161define void @void_one_out_arg_i32_2_use(i1 %arg0, i32* %val) #0 {
162  br i1 %arg0, label %ret0, label %ret1
163
164ret0:
165  store i32 0, i32* %val
166  ret void
167
168ret1:
169  store i32 9, i32* %val
170  ret void
171}
172
173declare void @may.clobber()
174
175; CHECK-LABEL: define private %void_one_out_arg_i32_2_stores @void_one_out_arg_i32_2_stores.body(i32* %val) #0 {
176; CHECK-NEXT: store i32 0, i32* %val
177; CHECK-NEXT: ret %void_one_out_arg_i32_2_stores { i32 1 }
178
179; CHECK-LABEL: define void @void_one_out_arg_i32_2_stores(i32*) #2 {
180; CHECK-NEXT: %2 = call %void_one_out_arg_i32_2_stores @void_one_out_arg_i32_2_stores.body(i32* undef)
181; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_i32_2_stores %2, 0
182; CHECK-NEXT: store i32 %3, i32* %0, align 4
183define void @void_one_out_arg_i32_2_stores(i32* %val) #0 {
184  store i32 0, i32* %val
185  store i32 1, i32* %val
186  ret void
187}
188
189; CHECK-LABEL: define private %void_one_out_arg_i32_2_stores_clobber @void_one_out_arg_i32_2_stores_clobber.body(i32* %val) #0 {
190; CHECK-NEXT: store i32 0, i32* %val
191; CHECK-NEXT: call void @may.clobber()
192; CHECK-NEXT: ret %void_one_out_arg_i32_2_stores_clobber { i32 1 }
193
194; CHECK-LABEL: define void @void_one_out_arg_i32_2_stores_clobber(i32*) #2 {
195; CHECK-NEXT: %2 = call %void_one_out_arg_i32_2_stores_clobber @void_one_out_arg_i32_2_stores_clobber.body(i32* undef)
196; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_i32_2_stores_clobber %2, 0
197; CHECK-NEXT: store i32 %3, i32* %0, align 4
198; CHECK-NEXT: ret void
199define void @void_one_out_arg_i32_2_stores_clobber(i32* %val) #0 {
200  store i32 0, i32* %val
201  call void @may.clobber()
202  store i32 1, i32* %val
203  ret void
204}
205
206; CHECK-NOT: define
207
208; CHECK-LABEL: define void @void_one_out_arg_i32_call_may_clobber(i32* %val) #0 {
209; CHECK-NEXT: store i32 0, i32* %val
210; CHECK-NEXT: call void @may.clobber()
211; CHECK-NEXT: ret void
212define void @void_one_out_arg_i32_call_may_clobber(i32* %val) #0 {
213  store i32 0, i32* %val
214  call void @may.clobber()
215  ret void
216}
217
218; CHECK-LABEL: define private %void_one_out_arg_i32_pre_call_may_clobber @void_one_out_arg_i32_pre_call_may_clobber.body(i32* %val) #0 {
219; CHECK-NEXT: call void @may.clobber()
220; CHECK-NEXT: ret %void_one_out_arg_i32_pre_call_may_clobber zeroinitializer
221
222; CHECK-LABEL: @void_one_out_arg_i32_pre_call_may_clobber(i32*) #2 {
223; CHECK-NEXT: %2 = call %void_one_out_arg_i32_pre_call_may_clobber @void_one_out_arg_i32_pre_call_may_clobber.body(i32* undef)
224; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_i32_pre_call_may_clobber %2, 0
225; CHECK-NEXT: store i32 %3, i32* %0, align 4
226; CHECK-NEXT: ret void
227define void @void_one_out_arg_i32_pre_call_may_clobber(i32* %val) #0 {
228  call void @may.clobber()
229  store i32 0, i32* %val
230  ret void
231}
232
233; CHECK-LABEL: define void @void_one_out_arg_i32_reload(i32* %val) #0 {
234; CHECK: store i32 0, i32* %val
235; CHECK: %load = load i32, i32* %val, align 4
236; CHECK: ret void
237define void @void_one_out_arg_i32_reload(i32* %val) #0 {
238  store i32 0, i32* %val
239  %load = load i32, i32* %val, align 4
240  ret void
241}
242
243; CHECK-NOT: define
244; CHECK-LABEL: define void @void_one_out_arg_i32_store_in_different_block(
245; CHECK-NEXT: %load = load i32, i32 addrspace(1)* undef
246; CHECK-NEXT: store i32 0, i32* %out
247; CHECK-NEXT: br label %ret
248; CHECK: ret:
249; CHECK-NEXT: ret void
250define void @void_one_out_arg_i32_store_in_different_block(i32* %out) #0 {
251  %load = load i32, i32 addrspace(1)* undef
252  store i32 0, i32* %out
253  br label %ret
254
255ret:
256  ret void
257}
258
259; CHECK-NOT: define
260; CHECK-LABEL: define void @unused_out_arg_one_branch(
261; CHECK: ret0:
262; CHECK-NEXT: ret void
263
264; CHECK: ret1:
265; CHECK-NEXT: store i32 9, i32* %val
266; CHECK-NEXT: ret void
267define void @unused_out_arg_one_branch(i1 %arg0, i32* %val) #0 {
268  br i1 %arg0, label %ret0, label %ret1
269
270ret0:
271  ret void
272
273ret1:
274  store i32 9, i32* %val
275  ret void
276}
277
278; CHECK-LABEL: define private %void_one_out_arg_v2i32_1_use @void_one_out_arg_v2i32_1_use.body(<2 x i32>* %val) #0 {
279; CHECK-NEXT: ret %void_one_out_arg_v2i32_1_use { <2 x i32> <i32 17, i32 9> }
280
281; CHECK-LABEL: define void @void_one_out_arg_v2i32_1_use(<2 x i32>*) #2 {
282; CHECK-NEXT: %2 = call %void_one_out_arg_v2i32_1_use @void_one_out_arg_v2i32_1_use.body(<2 x i32>* undef)
283; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_v2i32_1_use %2, 0
284; CHECK-NEXT: store <2 x i32> %3, <2 x i32>* %0, align 8
285; CHCEK-NEXT: ret void
286define void @void_one_out_arg_v2i32_1_use(<2 x i32>* %val) #0 {
287  store <2 x i32> <i32 17, i32 9>, <2 x i32>* %val
288  ret void
289}
290
291%struct = type { i32, i8, float }
292
293; CHECK-LABEL: define private %void_one_out_arg_struct_1_use @void_one_out_arg_struct_1_use.body(%struct* %out) #0 {
294; CHECK-NEXT: ret %void_one_out_arg_struct_1_use { %struct { i32 9, i8 99, float 4.000000e+00 } }
295
296; Normally this is split into element accesses which we don't handle.
297; CHECK-LABEL: define void @void_one_out_arg_struct_1_use(%struct*) #2 {
298; CHECK-NEXT: %2 = call %void_one_out_arg_struct_1_use @void_one_out_arg_struct_1_use.body(%struct* undef)
299; CHECK-NEXT: %3 = extractvalue %void_one_out_arg_struct_1_use %2, 0
300; CHECK-NEXT: store %struct %3, %struct* %0, align 4
301; CHECK-NEXT: ret void
302define void @void_one_out_arg_struct_1_use(%struct* %out) #0 {
303  store %struct { i32 9, i8 99, float 4.0 }, %struct* %out
304  ret void
305}
306
307; CHECK-LABEL: define private %i32_one_out_arg_i32_1_use @i32_one_out_arg_i32_1_use.body(i32* %val) #0 {
308; CHECK-NEXT: ret %i32_one_out_arg_i32_1_use { i32 9, i32 24 }
309
310; CHECK-LABEL: define i32 @i32_one_out_arg_i32_1_use(i32*) #2 {
311; CHECK-NEXT: %2 = call %i32_one_out_arg_i32_1_use @i32_one_out_arg_i32_1_use.body(i32* undef)
312; CHECK-NEXT: %3 = extractvalue %i32_one_out_arg_i32_1_use %2, 1
313; CHECK-NEXT: store i32 %3, i32* %0, align 4
314; CHECK-NEXT: %4 = extractvalue %i32_one_out_arg_i32_1_use %2, 0
315; CHECK-NEXT: ret i32 %4
316define i32 @i32_one_out_arg_i32_1_use(i32* %val) #0 {
317  store i32 24, i32* %val
318  ret i32 9
319}
320
321; CHECK-LABEL: define private %unused_different_type @unused_different_type.body(i32* %arg0, float* nocapture %arg1) #0 {
322; CHECK-NEXT: ret %unused_different_type { float 4.000000e+00 }
323
324; CHECK-LABEL: define void @unused_different_type(i32*, float* nocapture) #2 {
325; CHECK-NEXT: %3 = call %unused_different_type @unused_different_type.body(i32* %0, float* undef)
326; CHECK-NEXT: %4 = extractvalue %unused_different_type %3, 0
327; CHECK-NEXT: store float %4, float* %1, align 4
328; CHECK-NEXT  ret void
329define void @unused_different_type(i32* %arg0, float* nocapture %arg1) #0 {
330  store float 4.0, float* %arg1, align 4
331  ret void
332}
333
334; CHECK-LABEL: define private %multiple_same_return_noalias @multiple_same_return_noalias.body(i32* noalias %out0, i32* noalias %out1) #0 {
335; CHECK-NEXT: ret %multiple_same_return_noalias { i32 1, i32 2 }
336
337; CHECK-LABEL: define void @multiple_same_return_noalias(
338; CHECK-NEXT: %3 = call %multiple_same_return_noalias @multiple_same_return_noalias.body(i32* undef, i32* undef)
339; CHECK-NEXT: %4 = extractvalue %multiple_same_return_noalias %3, 0
340; CHECK-NEXT: store i32 %4, i32* %0, align 4
341; CHECK-NEXT: %5 = extractvalue %multiple_same_return_noalias %3, 1
342; CHECK-NEXT: store i32 %5, i32* %1, align 4
343; CHECK-NEXT: ret void
344define void @multiple_same_return_noalias(i32* noalias %out0, i32* noalias %out1) #0 {
345  store i32 1, i32* %out0, align 4
346  store i32 2, i32* %out1, align 4
347  ret void
348}
349
350; CHECK-LABEL: define private %multiple_same_return_mayalias @multiple_same_return_mayalias.body(i32* %out0, i32* %out1) #0 {
351; CHECK-NEXT: ret %multiple_same_return_mayalias { i32 2, i32 1 }
352
353; CHECK-LABEL: define void @multiple_same_return_mayalias(i32*, i32*) #2 {
354; CHECK-NEXT: %3 = call %multiple_same_return_mayalias @multiple_same_return_mayalias.body(i32* undef, i32* undef)
355; CHECK-NEXT: %4 = extractvalue %multiple_same_return_mayalias %3, 0
356; CHECK-NEXT: store i32 %4, i32* %0, align 4
357; CHECK-NEXT: %5 = extractvalue %multiple_same_return_mayalias %3, 1
358; CHECK-NEXT: store i32 %5, i32* %1, align 4
359; CHECK-NEXT: ret void
360define void @multiple_same_return_mayalias(i32* %out0, i32* %out1) #0 {
361 store i32 1, i32* %out0, align 4
362 store i32 2, i32* %out1, align 4
363 ret void
364}
365
366; CHECK-LABEL: define private %multiple_same_return_mayalias_order @multiple_same_return_mayalias_order.body(i32* %out0, i32* %out1) #0 {
367; CHECK-NEXT: ret %multiple_same_return_mayalias_order { i32 1, i32 2 }
368
369; CHECK-LABEL: define void @multiple_same_return_mayalias_order(i32*, i32*) #2 {
370; CHECK-NEXT: %3 = call %multiple_same_return_mayalias_order @multiple_same_return_mayalias_order.body(i32* undef, i32* undef)
371; CHECK-NEXT: %4 = extractvalue %multiple_same_return_mayalias_order %3, 0
372; CHECK-NEXT: store i32 %4, i32* %0, align 4
373; CHECK-NEXT: %5 = extractvalue %multiple_same_return_mayalias_order %3, 1
374; CHECK-NEXT: store i32 %5, i32* %1, align 4
375; CHECK-NEXT: ret void
376define void @multiple_same_return_mayalias_order(i32* %out0, i32* %out1) #0 {
377 store i32 2, i32* %out1, align 4
378 store i32 1, i32* %out0, align 4
379 ret void
380}
381
382; Currently this fails to convert because the store won't be found if
383; it isn't in the same block as the return.
384; CHECK-LABEL: define i32 @store_in_entry_block(i1 %arg0, i32* %out) #0 {
385; CHECK-NOT: call
386define i32 @store_in_entry_block(i1 %arg0, i32* %out) #0 {
387entry:
388  %val0 = load i32, i32 addrspace(1)* undef
389  store i32 %val0, i32* %out
390  br i1 %arg0, label %if, label %endif
391
392if:
393  %val1 = load i32, i32 addrspace(1)* undef
394  br label %endif
395
396endif:
397  %phi = phi i32 [ 0, %entry ], [ %val1, %if ]
398  ret i32 %phi
399}
400
401; CHECK-LABEL: define private %i1_one_out_arg_i32_1_use @i1_one_out_arg_i32_1_use.body(i32* %val) #0 {
402; CHECK-NEXT: ret %i1_one_out_arg_i32_1_use { i1 true, i32 24 }
403
404; CHECK-LABEL: define i1 @i1_one_out_arg_i32_1_use(i32*) #2 {
405; CHECK: %2 = call %i1_one_out_arg_i32_1_use @i1_one_out_arg_i32_1_use.body(i32* undef)
406; CHECK: %3 = extractvalue %i1_one_out_arg_i32_1_use %2, 1
407; CHECK: store i32 %3, i32* %0, align 4
408; CHECK: %4 = extractvalue %i1_one_out_arg_i32_1_use %2, 0
409; CHECK: ret i1 %4
410define i1 @i1_one_out_arg_i32_1_use(i32* %val) #0 {
411  store i32 24, i32* %val
412  ret i1 true
413}
414
415; Make sure we don't leave around return attributes that are
416; incompatible with struct return types.
417
418; CHECK-LABEL: define private %i1_zeroext_one_out_arg_i32_1_use @i1_zeroext_one_out_arg_i32_1_use.body(i32* %val) #0 {
419; CHECK-NEXT: ret %i1_zeroext_one_out_arg_i32_1_use { i1 true, i32 24 }
420
421; CHECK-LABEL: define zeroext i1 @i1_zeroext_one_out_arg_i32_1_use(i32*) #2 {
422; CHECK-NEXT: %2 = call %i1_zeroext_one_out_arg_i32_1_use @i1_zeroext_one_out_arg_i32_1_use.body(i32* undef)
423; CHECK-NEXT: %3 = extractvalue %i1_zeroext_one_out_arg_i32_1_use %2, 1
424; CHECK-NEXT: store i32 %3, i32* %0, align 4
425; CHECK-NEXT: %4 = extractvalue %i1_zeroext_one_out_arg_i32_1_use %2, 0
426; CHECK-NEXT: ret i1 %4
427define zeroext i1 @i1_zeroext_one_out_arg_i32_1_use(i32* %val) #0 {
428  store i32 24, i32* %val
429  ret i1 true
430}
431
432; CHECK-LABEL: define private %i1_signext_one_out_arg_i32_1_use @i1_signext_one_out_arg_i32_1_use.body(i32* %val) #0 {
433; CHECK-NEXT: ret %i1_signext_one_out_arg_i32_1_use { i1 true, i32 24 }
434
435; CHECK-LABEL: define signext i1 @i1_signext_one_out_arg_i32_1_use(i32*) #2 {
436; CHECK-NEXT: %2 = call %i1_signext_one_out_arg_i32_1_use @i1_signext_one_out_arg_i32_1_use.body(i32* undef)
437; CHECK-NEXT: %3 = extractvalue %i1_signext_one_out_arg_i32_1_use %2, 1
438; CHECK-NEXT: store i32 %3, i32* %0, align 4
439; CHECK-NEXT: %4 = extractvalue %i1_signext_one_out_arg_i32_1_use %2, 0
440; CHECK-NEXT: ret i1 %4
441define signext i1 @i1_signext_one_out_arg_i32_1_use(i32* %val) #0 {
442  store i32 24, i32* %val
443  ret i1 true
444}
445
446; CHECK-LABEL: define private %p1i32_noalias_one_out_arg_i32_1_use @p1i32_noalias_one_out_arg_i32_1_use.body(i32* %val) #0 {
447; CHECK-NEXT: ret %p1i32_noalias_one_out_arg_i32_1_use { i32 addrspace(1)* null, i32 24 }
448
449; CHECK-LABEL: define noalias i32 addrspace(1)* @p1i32_noalias_one_out_arg_i32_1_use(i32*) #2 {
450; CHECK-NEXT: %2 = call %p1i32_noalias_one_out_arg_i32_1_use @p1i32_noalias_one_out_arg_i32_1_use.body(i32* undef)
451; CHECK-NEXT: %3 = extractvalue %p1i32_noalias_one_out_arg_i32_1_use %2, 1
452; CHECK-NEXT: store i32 %3, i32* %0, align 4
453; CHECK-NEXT: %4 = extractvalue %p1i32_noalias_one_out_arg_i32_1_use %2, 0
454; CHECK-NEXT: ret i32 addrspace(1)* %4
455define noalias i32 addrspace(1)* @p1i32_noalias_one_out_arg_i32_1_use(i32* %val) #0 {
456  store i32 24, i32* %val
457  ret i32 addrspace(1)* null
458}
459
460; CHECK-LABEL: define void @void_one_out_non_private_arg_i32_1_use(i32 addrspace(1)* %val) #0 {
461; CHECK-NEXT: store i32 0, i32 addrspace(1)* %val
462; CHECK-NEXT: ret void
463define void @void_one_out_non_private_arg_i32_1_use(i32 addrspace(1)* %val) #0 {
464  store i32 0, i32 addrspace(1)* %val
465  ret void
466}
467
468; CHECK-LABEL: define private %func_ptr_type @func_ptr_type.body(void ()** %out) #0 {
469; CHECK-LABEL: define void @func_ptr_type(void ()**) #2 {
470; CHECK: %2 = call %func_ptr_type @func_ptr_type.body(void ()** undef)
471define void @func_ptr_type(void()** %out) #0 {
472  %func = load void()*, void()** undef
473  store void()* %func, void()** %out
474  ret void
475}
476
477; CHECK-LABEL: define private %bitcast_func_ptr_type @bitcast_func_ptr_type.body(void ()** %out) #0 {
478; CHECK-LABEL: define void @bitcast_func_ptr_type(void ()**) #2 {
479define void @bitcast_func_ptr_type(void()** %out) #0 {
480  %func = load i32()*, i32()** undef
481  %cast = bitcast void()** %out to i32()**
482  store i32()* %func, i32()** %cast
483  ret void
484}
485
486; CHECK-LABEL: define private %out_arg_small_array @out_arg_small_array.body([4 x i32]* %val) #0 {
487; CHECK-NEXT: ret %out_arg_small_array { [4 x i32] [i32 0, i32 1, i32 2, i32 3] }
488
489; CHECK-LABEL: define void @out_arg_small_array([4 x i32]*) #2 {
490define void @out_arg_small_array([4 x i32]* %val) #0 {
491  store [4 x i32] [i32 0, i32 1, i32 2, i32 3], [4 x i32]* %val
492  ret void
493}
494
495; CHECK-NOT: define
496; CHECK-LABEL: define void @out_arg_large_array([17 x i32]* %val) #0 {
497; CHECK-NEXT: store [17 x i32] zeroinitializer, [17 x i32]* %val
498; CHECK-NEXT: ret void
499define void @out_arg_large_array([17 x i32]* %val) #0 {
500  store [17 x i32] zeroinitializer, [17 x i32]* %val
501  ret void
502}
503
504; CHECK-NOT: define
505; CHECK-LABEL: define <16 x i32> @num_regs_return_limit(i32* %out, i32 %val) #0 {
506define <16 x i32> @num_regs_return_limit(i32* %out, i32 %val) #0 {
507  %load = load volatile <16 x i32>, <16 x i32> addrspace(1)* undef
508  store i32 %val, i32* %out
509  ret <16 x i32> %load
510}
511
512; CHECK-LABEL: define private %num_regs_reach_limit @num_regs_reach_limit.body(i32* %out, i32 %val) #0 {
513; CHECK: define [15 x i32] @num_regs_reach_limit(i32*, i32) #2 {
514; CHECK-NEXT: call %num_regs_reach_limit @num_regs_reach_limit.body(i32* undef, i32 %1)
515define [15 x i32] @num_regs_reach_limit(i32* %out, i32 %val) #0 {
516  %load = load volatile [15 x i32], [15 x i32] addrspace(1)* undef
517  store i32 %val, i32* %out
518  ret [15 x i32] %load
519}
520
521; CHECK-LABEL: define private %num_regs_reach_limit_leftover @num_regs_reach_limit_leftover.body(i32* %out0, i32* %out1, i32 %val0) #0 {
522; CHECK-NEXT: %load0 = load volatile [15 x i32], [15 x i32] addrspace(1)* undef
523; CHECK-NEXT: %load1 = load volatile i32, i32 addrspace(1)* undef
524; CHECK-NEXT: %1 = insertvalue %num_regs_reach_limit_leftover undef, [15 x i32] %load0, 0
525; CHECK-NEXT: %2 = insertvalue %num_regs_reach_limit_leftover %1, i32 %load1, 1
526; CHECK-NEXT: %3 = insertvalue %num_regs_reach_limit_leftover %2, i32 %val0, 2
527; CHECK-NEXT: ret %num_regs_reach_limit_leftover %3
528
529; CHECK-LABEL: define [15 x i32] @num_regs_reach_limit_leftover(i32*, i32*, i32) #2 {
530; CHECK-NEXT: %4 = call %num_regs_reach_limit_leftover @num_regs_reach_limit_leftover.body(i32* undef, i32* undef, i32 %2)
531; CHECK-NEXT: %5 = extractvalue %num_regs_reach_limit_leftover %4, 1
532; CHECK-NEXT: store i32 %5, i32* %0, align 4
533; CHECK-NEXT: %6 = extractvalue %num_regs_reach_limit_leftover %4, 2
534; CHECK-NEXT: store i32 %6, i32* %1, align 4
535; CHECK-NEXT: %7 = extractvalue %num_regs_reach_limit_leftover %4, 0
536; CHECK-NEXT: ret [15 x i32] %7
537define [15 x i32] @num_regs_reach_limit_leftover(i32* %out0, i32* %out1, i32 %val0) #0 {
538  %load0 = load volatile [15 x i32], [15 x i32] addrspace(1)* undef
539  %load1 = load volatile i32, i32 addrspace(1)* undef
540  store i32 %val0, i32* %out0
541  store i32 %load1, i32* %out1
542  ret [15 x i32] %load0
543}
544
545; CHECK-LABEL: define private %preserve_debug_info @preserve_debug_info.body(i32 %arg0, i32* %val) #0 {
546; CHECK-NEXT: call void @may.clobber(), !dbg !5
547; CHECK-NEXT: %1 = insertvalue %preserve_debug_info undef, i32 %arg0, 0, !dbg !11
548; CHECK-NEXT: ret %preserve_debug_info %1, !dbg !11
549
550; CHECK-LABEL: define void @preserve_debug_info(i32, i32*) #2 !dbg !6 {
551; CHECK-NEXT: %3 = call %preserve_debug_info @preserve_debug_info.body(i32 %0, i32* undef){{$}}
552; CHECK-NEXT: %4 = extractvalue %preserve_debug_info %3, 0{{$}}
553; CHECK-NEXT: store i32 %4, i32* %1, align 4{{$}}
554; CHECK-NEXT: ret void
555define void @preserve_debug_info(i32 %arg0, i32* %val) #0 !dbg !5 {
556  call void @may.clobber(), !dbg !10
557  store i32 %arg0, i32* %val, !dbg !11
558  ret void, !dbg !12
559}
560
561define void @preserve_metadata(i32 %arg0, i32* %val) #0 !kernel_arg_access_qual !13 {
562  call void @may.clobber()
563  store i32 %arg0, i32* %val
564  ret void
565}
566
567; Clang emits this pattern for 3-vectors for some reason.
568; CHECK-LABEL: define private %bitcast_pointer_v4i32_v3i32 @bitcast_pointer_v4i32_v3i32.body(<3 x i32>* %out) #0 {
569; CHECK-NEXT: %load = load volatile <4 x i32>, <4 x i32> addrspace(1)* undef
570; CHECK-NEXT: %bitcast = bitcast <3 x i32>* %out to <4 x i32>*
571; CHECK-NEXT: %1 = shufflevector <4 x i32> %load, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2>
572; CHECK-NEXT: %2 = insertvalue %bitcast_pointer_v4i32_v3i32 undef, <3 x i32> %1, 0
573; CHECK-NEXT: ret %bitcast_pointer_v4i32_v3i32 %2
574
575; CHECK-LABEL: define void @bitcast_pointer_v4i32_v3i32(<3 x i32>*) #2 {
576; CHECK-NEXT: %2 = call %bitcast_pointer_v4i32_v3i32 @bitcast_pointer_v4i32_v3i32.body(<3 x i32>* undef)
577; CHECK-NEXT: %3 = extractvalue %bitcast_pointer_v4i32_v3i32 %2, 0
578; CHECK-NEXT: store <3 x i32> %3, <3 x i32>* %0, align 16
579; CHECK-NEXT: ret void
580define void @bitcast_pointer_v4i32_v3i32(<3 x i32>* %out) #0 {
581  %load = load volatile <4 x i32>, <4 x i32> addrspace(1)* undef
582  %bitcast = bitcast <3 x i32>* %out to <4 x i32>*
583  store <4 x i32> %load, <4 x i32>* %bitcast
584  ret void
585}
586
587; CHECK-LABEL: define private %bitcast_pointer_v4i32_v3f32 @bitcast_pointer_v4i32_v3f32.body(<3 x float>* %out) #0 {
588; CHECK-NEXT: %load = load volatile <4 x i32>, <4 x i32> addrspace(1)* undef
589; CHECK-NEXT: %bitcast = bitcast <3 x float>* %out to <4 x i32>*
590; CHECK-NEXT: %1 = shufflevector <4 x i32> %load, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2>
591; CHECK-NEXT: %2 = bitcast <3 x i32> %1 to <3 x float>
592; CHECK-NEXT: %3 = insertvalue %bitcast_pointer_v4i32_v3f32 undef, <3 x float> %2, 0
593; CHECK-NEXT: ret %bitcast_pointer_v4i32_v3f32 %3
594define void @bitcast_pointer_v4i32_v3f32(<3 x float>* %out) #0 {
595  %load = load volatile <4 x i32>, <4 x i32> addrspace(1)* undef
596  %bitcast = bitcast <3 x float>* %out to <4 x i32>*
597  store <4 x i32> %load, <4 x i32>* %bitcast
598  ret void
599}
600
601
602; Try different element and bitwidths which could produce broken
603; casts.
604
605; CHECK-LABEL: define private %bitcast_pointer_i32_f32 @bitcast_pointer_i32_f32.body(float* %out) #0 {
606; CHECK-NEXT: %load = load volatile i32, i32 addrspace(1)* undef
607; CHECK-NEXT: %bitcast = bitcast float* %out to i32*
608; CHECK-NEXT: %1 = bitcast i32 %load to float
609; CHECK-NEXT: %2 = insertvalue %bitcast_pointer_i32_f32 undef, float %1, 0
610; CHECK-NEXT: ret %bitcast_pointer_i32_f32 %2
611
612; CHECK-LABEL: define void @bitcast_pointer_i32_f32(float*) #2 {
613; CHECK-NEXT: %2 = call %bitcast_pointer_i32_f32 @bitcast_pointer_i32_f32.body(float* undef)
614; CHECK-NEXT: %3 = extractvalue %bitcast_pointer_i32_f32 %2, 0
615; CHECK-NEXT: store float %3, float* %0, align 4
616define void @bitcast_pointer_i32_f32(float* %out) #0 {
617  %load = load volatile i32, i32 addrspace(1)* undef
618  %bitcast = bitcast float* %out to i32*
619  store i32 %load, i32* %bitcast
620  ret void
621}
622
623; CHECK-LABEL: define void @bitcast_pointer_i32_f16(half* %out) #0 {
624; CHECK-NOT: call
625define void @bitcast_pointer_i32_f16(half* %out) #0 {
626  %load = load volatile i32, i32 addrspace(1)* undef
627  %bitcast = bitcast half* %out to i32*
628  store i32 %load, i32* %bitcast
629  ret void
630}
631
632; CHECK-LABEL: define void @bitcast_pointer_f16_i32(i32* %out) #0 {
633; CHECK-NOT: call
634define void @bitcast_pointer_f16_i32(i32* %out) #0 {
635  %load = load volatile half, half addrspace(1)* undef
636  %bitcast = bitcast i32* %out to half*
637  store half %load, half* %bitcast
638  ret void
639}
640
641%struct.i128 = type { i128 }
642%struct.v2f32 = type { <2 x float> }
643%struct.v3f32 = type { <3 x float> }
644%struct.v3f32.f32 = type { <3 x float>, float }
645%struct.v4f32 = type { <4 x float> }
646
647; CHECK-LABEL: define private %bitcast_struct_v3f32_v3f32 @bitcast_struct_v3f32_v3f32.body(%struct.v3f32* %out, <3 x float> %value) #0 {
648; CHECK-NEXT: %extractVec = shufflevector <3 x float> %value, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
649; CHECK-NEXT: %cast = bitcast %struct.v3f32* %out to <4 x float>*
650; CHECK-NEXT: %1 = shufflevector <4 x float> %extractVec, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2>
651; CHECK-NEXT: %2 = insertvalue %struct.v3f32 undef, <3 x float> %1, 0
652; CHECK-NEXT: %3 = insertvalue %bitcast_struct_v3f32_v3f32 undef, %struct.v3f32 %2, 0
653; CHECK-NEXT: ret %bitcast_struct_v3f32_v3f32 %3
654
655; CHECK-LABEL: define void @bitcast_struct_v3f32_v3f32(%struct.v3f32*, <3 x float>) #2 {
656; CHECK-NEXT: %3 = call %bitcast_struct_v3f32_v3f32 @bitcast_struct_v3f32_v3f32.body(%struct.v3f32* undef, <3 x float> %1)
657; CHECK-NEXT: %4 = extractvalue %bitcast_struct_v3f32_v3f32 %3, 0
658; CHECK-NEXT: store %struct.v3f32 %4, %struct.v3f32* %0, align 16
659; CHECK-NEXT: ret void
660define void @bitcast_struct_v3f32_v3f32(%struct.v3f32* %out, <3 x float> %value) #0 {
661  %extractVec = shufflevector <3 x float> %value, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
662  %cast = bitcast %struct.v3f32* %out to <4 x float>*
663  store <4 x float> %extractVec, <4 x float>* %cast, align 16
664  ret void
665}
666
667; CHECK-LABEL: define private %bitcast_struct_v3f32_v3i32 @bitcast_struct_v3f32_v3i32.body(%struct.v3f32* %out, <3 x i32> %value) #0 {
668; CHECK-NEXT: %extractVec = shufflevector <3 x i32> %value, <3 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
669; CHECK-NEXT: %cast = bitcast %struct.v3f32* %out to <4 x i32>*
670; CHECK-NEXT: %1 = shufflevector <4 x i32> %extractVec, <4 x i32> undef, <3 x i32> <i32 0, i32 1, i32 2>
671; CHECK-NEXT: %2 = bitcast <3 x i32> %1 to <3 x float>
672; CHECK-NEXT: %3 = insertvalue %struct.v3f32 undef, <3 x float> %2, 0
673; CHECK-NEXT: %4 = insertvalue %bitcast_struct_v3f32_v3i32 undef, %struct.v3f32 %3, 0
674; CHECK-NEXT: ret %bitcast_struct_v3f32_v3i32 %4
675
676; CHECK-LABEL: define void @bitcast_struct_v3f32_v3i32(%struct.v3f32*, <3 x i32>) #2 {
677; CHECK-NEXT: %3 = call %bitcast_struct_v3f32_v3i32 @bitcast_struct_v3f32_v3i32.body(%struct.v3f32* undef, <3 x i32> %1)
678; CHECK-NEXT: %4 = extractvalue %bitcast_struct_v3f32_v3i32 %3, 0
679; CHECK-NEXT: store %struct.v3f32 %4, %struct.v3f32* %0, align 16
680define void @bitcast_struct_v3f32_v3i32(%struct.v3f32* %out, <3 x i32> %value) #0 {
681  %extractVec = shufflevector <3 x i32> %value, <3 x i32> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
682  %cast = bitcast %struct.v3f32* %out to <4 x i32>*
683  store <4 x i32> %extractVec, <4 x i32>* %cast, align 16
684  ret void
685}
686
687; CHECK-LABEL: define private %bitcast_struct_v4f32_v4f32 @bitcast_struct_v4f32_v4f32.body(%struct.v4f32* %out, <4 x float> %value) #0 {
688; CHECK-NEXT: %cast = bitcast %struct.v4f32* %out to <4 x float>*
689; CHECK-NEXT: %1 = insertvalue %struct.v4f32 undef, <4 x float> %value, 0
690; CHECK-NEXT: %2 = insertvalue %bitcast_struct_v4f32_v4f32 undef, %struct.v4f32 %1, 0
691; CHECK-NEXT: ret %bitcast_struct_v4f32_v4f32 %2
692
693; CHECK-LABEL: define void @bitcast_struct_v4f32_v4f32(%struct.v4f32*, <4 x float>) #2 {
694; CHECK-NEXT: %3 = call %bitcast_struct_v4f32_v4f32 @bitcast_struct_v4f32_v4f32.body(%struct.v4f32* undef, <4 x float> %1)
695define void @bitcast_struct_v4f32_v4f32(%struct.v4f32* %out, <4 x float> %value) #0 {
696  %cast = bitcast %struct.v4f32* %out to <4 x float>*
697  store <4 x float> %value, <4 x float>* %cast, align 16
698  ret void
699}
700
701; CHECK-LABEL: define private %bitcast_struct_v3f32_v4i32 @bitcast_struct_v3f32_v4i32.body(%struct.v3f32* %out, <4 x i32> %value) #0 {
702; CHECK-LABEL: define void @bitcast_struct_v3f32_v4i32(%struct.v3f32*, <4 x i32>) #2 {
703define void @bitcast_struct_v3f32_v4i32(%struct.v3f32* %out, <4 x i32> %value) #0 {
704  %cast = bitcast %struct.v3f32* %out to <4 x i32>*
705  store <4 x i32> %value, <4 x i32>* %cast, align 16
706  ret void
707}
708
709; CHECK-LABEL: define private %bitcast_struct_v4f32_v3f32 @bitcast_struct_v4f32_v3f32.body(%struct.v4f32* %out, <3 x float> %value) #0 {
710; CHECK-LABEL: define void @bitcast_struct_v4f32_v3f32(%struct.v4f32*, <3 x float>) #2 {
711define void @bitcast_struct_v4f32_v3f32(%struct.v4f32* %out, <3 x float> %value) #0 {
712  %extractVec = shufflevector <3 x float> %value, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
713  %cast = bitcast %struct.v4f32* %out to <4 x float>*
714  store <4 x float> %extractVec, <4 x float>* %cast, align 16
715  ret void
716}
717
718; CHECK-NOT: define
719; CHECK-LABEL: define void @bitcast_struct_v3f32_v2f32(%struct.v3f32* %out, <2 x float> %value) #0 {
720; CHECK-NOT: call
721define void @bitcast_struct_v3f32_v2f32(%struct.v3f32* %out, <2 x float> %value) #0 {
722  %cast = bitcast %struct.v3f32* %out to <2 x float>*
723  store <2 x float> %value, <2 x float>* %cast, align 8
724  ret void
725}
726
727; CHECK-NOT: define
728; CHECK-LABEL: define void @bitcast_struct_v3f32_f32_v3f32(%struct.v3f32.f32* %out, <3 x float> %value) #0 {
729; CHECK-NOT: call
730define void @bitcast_struct_v3f32_f32_v3f32(%struct.v3f32.f32* %out, <3 x float> %value) #0 {
731  %extractVec = shufflevector <3 x float> %value, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
732  %cast = bitcast %struct.v3f32.f32* %out to <4 x float>*
733  store <4 x float> %extractVec, <4 x float>* %cast, align 16
734  ret void
735}
736
737; CHECK-NOT: define
738; CHECK-LABEL: define void @bitcast_struct_v3f32_f32_v4f32(%struct.v3f32.f32* %out, <4 x float> %value) #0 {
739; CHECK-NOT: call
740define void @bitcast_struct_v3f32_f32_v4f32(%struct.v3f32.f32* %out, <4 x float> %value) #0 {
741  %cast = bitcast %struct.v3f32.f32* %out to <4 x float>*
742  store <4 x float> %value, <4 x float>* %cast, align 16
743  ret void
744}
745
746; CHECK-LABEL: define private %bitcast_struct_i128_v4f32 @bitcast_struct_i128_v4f32.body(%struct.i128* %out, <4 x float> %value) #0 {
747; CHECK-NEXT: %cast = bitcast %struct.i128* %out to <4 x float>*
748; CHECK-NEXT: %1 = bitcast <4 x float> %value to i128
749; CHECK-NEXT: %2 = insertvalue %struct.i128 undef, i128 %1, 0
750; CHECK-NEXT: %3 = insertvalue %bitcast_struct_i128_v4f32 undef, %struct.i128 %2, 0
751; CHECK-NEXT: ret %bitcast_struct_i128_v4f32 %3
752define void @bitcast_struct_i128_v4f32(%struct.i128* %out, <4 x float> %value) #0 {
753  %cast = bitcast %struct.i128* %out to <4 x float>*
754  store <4 x float> %value, <4 x float>* %cast, align 16
755  ret void
756}
757
758; CHECK-LABEL: define void @bitcast_struct_i128_v4f32(%struct.i128*, <4 x float>) #2 {
759; CHECK-NEXT: %3 = call %bitcast_struct_i128_v4f32 @bitcast_struct_i128_v4f32.body(%struct.i128* undef, <4 x float> %1)
760define void @bitcast_array_v4i32_v4f32([4 x i32]* %out, [4 x float] %value) #0 {
761  %cast = bitcast [4 x i32]* %out to [4 x float]*
762  store [4 x float] %value, [4 x float]* %cast, align 4
763  ret void
764}
765
766; CHECK-LABEL: define private %multi_return_bitcast_struct_v3f32_v3f32 @multi_return_bitcast_struct_v3f32_v3f32.body(i1 %cond, %struct.v3f32* %out, <3 x float> %value) #0 {
767; CHECK: ret0:
768; CHECK: %cast0 = bitcast %struct.v3f32* %out to <4 x float>*
769; CHECK: %0 = shufflevector <4 x float> %extractVec, <4 x float> undef, <3 x i32> <i32 0, i32 1, i32 2>
770; CHECK: %1 = insertvalue %struct.v3f32 undef, <3 x float> %0, 0
771; CHECK: %2 = insertvalue %multi_return_bitcast_struct_v3f32_v3f32 undef, %struct.v3f32 %1, 0
772; CHECK: ret %multi_return_bitcast_struct_v3f32_v3f32 %2
773
774; CHECK: ret1:
775; CHECK: %4 = insertvalue %struct.v3f32 undef, <3 x float> %3, 0
776; CHECK: %5 = insertvalue %multi_return_bitcast_struct_v3f32_v3f32 undef, %struct.v3f32 %4, 0
777; CHECK: ret %multi_return_bitcast_struct_v3f32_v3f32 %5
778define void @multi_return_bitcast_struct_v3f32_v3f32(i1 %cond, %struct.v3f32* %out, <3 x float> %value) #0 {
779entry:
780  br i1 %cond, label %ret0, label %ret1
781
782ret0:
783  %extractVec = shufflevector <3 x float> %value, <3 x float> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
784  %cast0 = bitcast %struct.v3f32* %out to <4 x float>*
785  store <4 x float> %extractVec, <4 x float>* %cast0, align 16
786  ret void
787
788ret1:
789  %cast1 = bitcast %struct.v3f32* %out to <4 x float>*
790  %load = load <4 x float>, <4 x float> addrspace(1)* undef
791  store <4 x float> %load, <4 x float>* %cast1, align 16
792  ret void
793}
794
795; CHECK-LABEL: define void @bitcast_v3f32_struct_v3f32(<3 x float>* %out, %struct.v3f32 %value) #0 {
796; CHECK-NOT: call
797define void @bitcast_v3f32_struct_v3f32(<3 x float>* %out, %struct.v3f32 %value) #0 {
798  %cast = bitcast <3 x float>* %out to %struct.v3f32*
799  store %struct.v3f32 %value, %struct.v3f32* %cast, align 4
800  ret void
801}
802
803attributes #0 = { nounwind }
804attributes #1 = { nounwind noinline optnone }
805attributes #2 = { alwaysinline nounwind }
806
807!llvm.dbg.cu = !{!0}
808!llvm.module.flags = !{!3, !4}
809
810!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
811!1 = !DIFile(filename: "code-object-metadata-kernel-debug-props.cl", directory: "/some/random/directory")
812!2 = !{}
813!3 = !{i32 2, !"Dwarf Version", i32 2}
814!4 = !{i32 2, !"Debug Info Version", i32 3}
815!5 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
816!6 = !DISubroutineType(types: !7)
817!7 = !{null, !8}
818!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64)
819!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
820!10 = !DILocation(line: 2, column: 3, scope: !5)
821!11 = !DILocation(line: 2, column: 8, scope: !5)
822!12 = !DILocation(line: 3, column: 3, scope: !5)
823!13 = !{!"none"}
824