1 // RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-unknown-windows -emit-llvm -target-cpu core2 -o - %s | FileCheck %s
2 
3 #define SWIFTCALL __attribute__((swiftcall))
4 #define OUT __attribute__((swift_indirect_result))
5 #define ERROR __attribute__((swift_error_result))
6 #define CONTEXT __attribute__((swift_context))
7 
8 // CHECK: [[STRUCT2_RESULT:@.*]] = private {{.*}} constant [[STRUCT2_TYPE:%.*]] { i32 0, i8 0, i8 undef, i8 0, i32 0, i32 0 }
9 
10 /*****************************************************************************/
11 /****************************** PARAMETER ABIS *******************************/
12 /*****************************************************************************/
13 
14 SWIFTCALL void indirect_result_1(OUT int *arg0, OUT float *arg1) {}
15 // CHECK-LABEL: define {{.*}} void @indirect_result_1(i32* noalias noundef sret(i32*) align 4 dereferenceable(4){{.*}}, float* noalias noundef align 4 dereferenceable(4){{.*}})
16 
17 // TODO: maybe this shouldn't suppress sret.
18 SWIFTCALL int indirect_result_2(OUT int *arg0, OUT float *arg1) {  __builtin_unreachable(); }
19 // CHECK-LABEL: define {{.*}} i32 @indirect_result_2(i32* noalias noundef align 4 dereferenceable(4){{.*}}, float* noalias noundef align 4 dereferenceable(4){{.*}})
20 
21 typedef struct { char array[1024]; } struct_reallybig;
22 SWIFTCALL struct_reallybig indirect_result_3(OUT int *arg0, OUT float *arg1) { __builtin_unreachable(); }
23 // CHECK-LABEL: define {{.*}} void @indirect_result_3({{.*}}* noalias sret({{.*}}) {{.*}}, i32* noalias noundef align 4 dereferenceable(4){{.*}}, float* noalias noundef align 4 dereferenceable(4){{.*}})
24 
25 SWIFTCALL void context_1(CONTEXT void *self) {}
26 // CHECK-LABEL: define {{.*}} void @context_1(i8* noundef swiftself
27 
28 SWIFTCALL void context_2(void *arg0, CONTEXT void *self) {}
29 // CHECK-LABEL: define {{.*}} void @context_2(i8*{{.*}}, i8* noundef swiftself
30 
31 SWIFTCALL void context_error_1(CONTEXT int *self, ERROR float **error) {}
32 // CHECK-LABEL: define {{.*}} void @context_error_1(i32* noundef swiftself{{.*}}, float** noundef swifterror %0)
33 // CHECK:       [[TEMP:%.*]] = alloca float*, align 8
34 // CHECK:       [[T0:%.*]] = load float*, float** [[ERRORARG:%.*]], align 8
35 // CHECK:       store float* [[T0]], float** [[TEMP]], align 8
36 // CHECK:       [[T0:%.*]] = load float*, float** [[TEMP]], align 8
37 // CHECK:       store float* [[T0]], float** [[ERRORARG]], align 8
38 void test_context_error_1(void) {
39   int x;
40   float *error;
41   context_error_1(&x, &error);
42 }
43 // CHECK-LABEL: define dso_local void @test_context_error_1()
44 // CHECK:       [[X:%.*]] = alloca i32, align 4
45 // CHECK:       [[ERROR:%.*]] = alloca float*, align 8
46 // CHECK:       [[TEMP:%.*]] = alloca swifterror float*, align 8
47 // CHECK:       [[T0:%.*]] = load float*, float** [[ERROR]], align 8
48 // CHECK:       store float* [[T0]], float** [[TEMP]], align 8
49 // CHECK:       call [[SWIFTCC:swiftcc]] void @context_error_1(i32* noundef swiftself [[X]], float** noundef swifterror [[TEMP]])
50 // CHECK:       [[T0:%.*]] = load float*, float** [[TEMP]], align 8
51 // CHECK:       store float* [[T0]], float** [[ERROR]], align 8
52 
53 SWIFTCALL void context_error_2(short s, CONTEXT int *self, ERROR float **error) {}
54 // CHECK-LABEL: define {{.*}} void @context_error_2(i16{{.*}}, i32* noundef swiftself{{.*}}, float** noundef swifterror %0)
55 
56 /*****************************************************************************/
57 /********************************** LOWERING *********************************/
58 /*****************************************************************************/
59 
60 typedef float float4 __attribute__((ext_vector_type(4)));
61 typedef float float8 __attribute__((ext_vector_type(8)));
62 typedef double double2 __attribute__((ext_vector_type(2)));
63 typedef double double4 __attribute__((ext_vector_type(4)));
64 typedef int int3 __attribute__((ext_vector_type(3)));
65 typedef int int4 __attribute__((ext_vector_type(4)));
66 typedef int int5 __attribute__((ext_vector_type(5)));
67 typedef int int8 __attribute__((ext_vector_type(8)));
68 
69 #define TEST(TYPE)                       \
70   SWIFTCALL TYPE return_##TYPE(void) {   \
71     TYPE result = {};                    \
72     return result;                       \
73   }                                      \
74   SWIFTCALL void take_##TYPE(TYPE v) {   \
75   }                                      \
76   void test_##TYPE(void) {               \
77     take_##TYPE(return_##TYPE());        \
78   }
79 
80 /*****************************************************************************/
81 /*********************************** STRUCTS *********************************/
82 /*****************************************************************************/
83 
84 typedef struct {
85 } struct_empty;
86 TEST(struct_empty);
87 // CHECK-LABEL: define {{.*}} @return_struct_empty()
88 // CHECK:   ret void
89 // CHECK-LABEL: define {{.*}} @take_struct_empty()
90 // CHECK:   ret void
91 
92 typedef struct {
93   int x;
94   char c0;
95   char c1;
96   int f0;
97   int f1;
98 } struct_1;
99 TEST(struct_1);
100 // CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_1() {{.*}}{
101 // CHECK:   [[RET:%.*]] = alloca [[STRUCT1:%.*]], align 4
102 // CHECK:   call void @llvm.memset
103 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT1]]* %retval to { i64, i64 }*
104 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 0
105 // CHECK:   [[T0:%.*]] = load i64, i64* [[GEP0]], align 4
106 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 1
107 // CHECK:   [[T1:%.*]] = load i64, i64* [[GEP1]], align 4
108 // CHECK:   [[R0:%.*]] = insertvalue { i64, i64 } undef, i64 [[T0]], 0
109 // CHECK:   [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
110 // CHECK:   ret { i64, i64 } [[R1]]
111 // CHECK: }
112 // CHECK-LABEL: define dso_local swiftcc void @take_struct_1(i64 %0, i64 %1) {{.*}}{
113 // CHECK:   [[V:%.*]] = alloca [[STRUCT1:%.*]], align 4
114 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT1]]* [[V]] to { i64, i64 }*
115 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 0
116 // CHECK:   store i64 %0, i64* [[GEP0]], align 4
117 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 1
118 // CHECK:   store i64 %1, i64* [[GEP1]], align 4
119 // CHECK:   ret void
120 // CHECK: }
121 // CHECK-LABEL: define dso_local void @test_struct_1() {{.*}}{
122 // CHECK:   [[AGG:%.*]] = alloca [[STRUCT1:%.*]], align 4
123 // CHECK:   [[RET:%.*]] = call swiftcc { i64, i64 } @return_struct_1()
124 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT1]]* [[AGG]] to { i64, i64 }*
125 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 0
126 // CHECK:   [[E0:%.*]] = extractvalue { i64, i64 } [[RET]], 0
127 // CHECK:   store i64 [[E0]], i64* [[GEP0]], align 4
128 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 1
129 // CHECK:   [[E1:%.*]] = extractvalue { i64, i64 } [[RET]], 1
130 // CHECK:   store i64 [[E1]], i64* [[GEP1]], align 4
131 // CHECK:   [[CAST2:%.*]] = bitcast [[STRUCT1]]* [[AGG]] to { i64, i64 }*
132 // CHECK:   [[GEP2:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST2]], i32 0, i32 0
133 // CHECK:   [[V0:%.*]] = load i64, i64* [[GEP2]], align 4
134 // CHECK:   [[GEP3:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST2]], i32 0, i32 1
135 // CHECK:   [[V1:%.*]] = load i64, i64* [[GEP3]], align 4
136 // CHECK:   call swiftcc void @take_struct_1(i64 [[V0]], i64 [[V1]])
137 // CHECK:   ret void
138 // CHECK: }
139 
140 typedef struct {
141   int x;
142   char c0;
143   __attribute__((aligned(2))) char c1;
144   int f0;
145   int f1;
146 } struct_2;
147 TEST(struct_2);
148 // CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_2() {{.*}}{
149 // CHECK:   [[RET:%.*]] = alloca [[STRUCT2_TYPE]], align 4
150 // CHECK:   [[CASTVAR:%.*]] = bitcast {{.*}} [[RET]]
151 // CHECK:   call void @llvm.memcpy{{.*}}({{.*}}[[CASTVAR]], {{.*}}[[STRUCT2_RESULT]]
152 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT2_TYPE]]* [[RET]] to { i64, i64 }*
153 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 0
154 // CHECK:   [[T0:%.*]] = load i64, i64* [[GEP0]], align 4
155 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 1
156 // CHECK:   [[T1:%.*]] = load i64, i64* [[GEP1]], align 4
157 // CHECK:   [[R0:%.*]] = insertvalue { i64, i64 } undef, i64 [[T0]], 0
158 // CHECK:   [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
159 // CHECK:   ret { i64, i64 } [[R1]]
160 // CHECK: }
161 // CHECK-LABEL: define dso_local swiftcc void @take_struct_2(i64 %0, i64 %1) {{.*}}{
162 // CHECK:   [[V:%.*]] = alloca [[STRUCT:%.*]], align 4
163 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT]]* [[V]] to { i64, i64 }*
164 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 0
165 // CHECK:   store i64 %0, i64* [[GEP0]], align 4
166 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 1
167 // CHECK:   store i64 %1, i64* [[GEP1]], align 4
168 // CHECK:   ret void
169 // CHECK: }
170 // CHECK-LABEL: define dso_local void @test_struct_2() {{.*}} {
171 // CHECK:   [[TMP:%.*]] = alloca [[STRUCT2_TYPE]], align 4
172 // CHECK:   [[CALL:%.*]] = call swiftcc { i64, i64 } @return_struct_2()
173 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[STRUCT2_TYPE]]* [[TMP]] to { i64, i64 }*
174 // CHECK:   [[GEP:%.*]] = getelementptr inbounds {{.*}} [[CAST_TMP]], i32 0, i32 0
175 // CHECK:   [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 0
176 // CHECK:   store i64 [[T0]], i64* [[GEP]], align 4
177 // CHECK:   [[GEP:%.*]] = getelementptr inbounds {{.*}} [[CAST_TMP]], i32 0, i32 1
178 // CHECK:   [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 1
179 // CHECK:   store i64 [[T0]], i64* [[GEP]], align 4
180 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT2_TYPE]]* [[TMP]] to { i64, i64 }*
181 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 0
182 // CHECK:   [[R0:%.*]] = load i64, i64* [[GEP]], align 4
183 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64, i64 }, { i64, i64 }* [[CAST]], i32 0, i32 1
184 // CHECK:   [[R1:%.*]] = load i64, i64* [[GEP]], align 4
185 // CHECK:   call swiftcc void @take_struct_2(i64 [[R0]], i64 [[R1]])
186 // CHECK:   ret void
187 // CHECK: }
188 
189 // There's no way to put a field randomly in the middle of an otherwise
190 // empty storage unit in C, so that case has to be tested in C++, which
191 // can use empty structs to introduce arbitrary padding.  (In C, they end up
192 // with size 0 and so don't affect layout.)
193 
194 // Misaligned data rule.
195 typedef struct {
196   char c0;
197   __attribute__((packed)) float f;
198 } struct_misaligned_1;
199 TEST(struct_misaligned_1)
200 // CHECK-LABEL: define dso_local swiftcc i64 @return_struct_misaligned_1()
201 // CHECK:  [[RET:%.*]] = alloca [[STRUCT:%.*]], align 1
202 // CHECK:  [[CAST:%.*]] = bitcast [[STRUCT]]* [[RET]] to i8*
203 // CHECK:  call void @llvm.memset{{.*}}(i8* align 1 [[CAST]], i8 0, i64 5
204 // CHECK:  [[CAST:%.*]] = bitcast [[STRUCT]]* [[RET]] to { i64 }*
205 // CHECK:  [[GEP:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[CAST]], i32 0, i32 0
206 // CHECK:  [[R0:%.*]] = load i64, i64* [[GEP]], align 1
207 // CHECK:  ret i64 [[R0]]
208 // CHECK:}
209 // CHECK-LABEL: define dso_local swiftcc void @take_struct_misaligned_1(i64 %0) {{.*}}{
210 // CHECK:   [[V:%.*]] = alloca [[STRUCT:%.*]], align 1
211 // CHECK:   [[CAST:%.*]] = bitcast [[STRUCT]]* [[V]] to { i64 }*
212 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[CAST]], i32 0, i32 0
213 // CHECK:   store i64 %0, i64* [[GEP]], align 1
214 // CHECK:   ret void
215 // CHECK: }
216 // CHECK: define dso_local void @test_struct_misaligned_1() {{.*}}{
217 // CHECK:   [[AGG:%.*]] = alloca [[STRUCT:%.*]], align 1
218 // CHECK:   [[CALL:%.*]] = call swiftcc i64 @return_struct_misaligned_1()
219 // CHECK:   [[T0:%.*]] = bitcast [[STRUCT]]* [[AGG]] to { i64 }*
220 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[T0]], i32 0, i32 0
221 // CHECK:   store i64 [[CALL]], i64* [[T1]], align 1
222 // CHECK:   [[T0:%.*]] = bitcast [[STRUCT]]* [[AGG]] to { i64 }*
223 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[T0]], i32 0, i32 0
224 // CHECK:   [[P:%.*]] = load i64, i64* [[T1]], align 1
225 // CHECK:   call swiftcc void @take_struct_misaligned_1(i64 [[P]])
226 // CHECK:   ret void
227 // CHECK: }
228 
229 // Too many scalars.
230 typedef struct {
231   long long x[5];
232 } struct_big_1;
233 TEST(struct_big_1)
234 
235 // CHECK-LABEL: define {{.*}} void @return_struct_big_1({{.*}} noalias sret
236 
237 // Should not be byval.
238 // CHECK-LABEL: define {{.*}} void @take_struct_big_1({{.*}}* noundef{{( %.*)?}})
239 
240 /*****************************************************************************/
241 /********************************* TYPE MERGING ******************************/
242 /*****************************************************************************/
243 
244 typedef union {
245   float f;
246   double d;
247 } union_het_fp;
248 TEST(union_het_fp)
249 // CHECK-LABEL: define dso_local swiftcc i64 @return_union_het_fp()
250 // CHECK:  [[RET:%.*]] = alloca [[UNION:%.*]], align 8
251 // CHECK:  [[CAST:%.*]] = bitcast [[UNION]]* [[RET]] to i8*
252 // CHECK:  call void @llvm.memcpy{{.*}}(i8* align {{[0-9]+}} [[CAST]]
253 // CHECK:  [[CAST:%.*]] = bitcast [[UNION]]* [[RET]] to { i64 }*
254 // CHECK:  [[GEP:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[CAST]], i32 0, i32 0
255 // CHECK:  [[R0:%.*]] = load i64, i64* [[GEP]], align 8
256 // CHECK:  ret i64 [[R0]]
257 // CHECK-LABEL: define dso_local swiftcc void @take_union_het_fp(i64 %0) {{.*}}{
258 // CHECK:   [[V:%.*]] = alloca [[UNION:%.*]], align 8
259 // CHECK:   [[CAST:%.*]] = bitcast [[UNION]]* [[V]] to { i64 }*
260 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[CAST]], i32 0, i32 0
261 // CHECK:   store i64 %0, i64* [[GEP]], align 8
262 // CHECK:   ret void
263 // CHECK: }
264 // CHECK-LABEL: define dso_local void @test_union_het_fp() {{.*}}{
265 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 8
266 // CHECK:   [[CALL:%.*]] = call swiftcc i64 @return_union_het_fp()
267 // CHECK:   [[T0:%.*]] = bitcast [[UNION]]* [[AGG]] to { i64 }*
268 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[T0]], i32 0, i32 0
269 // CHECK:   store i64 [[CALL]], i64* [[T1]], align 8
270 // CHECK:   [[T0:%.*]] = bitcast [[UNION]]* [[AGG]] to { i64 }*
271 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, { i64 }* [[T0]], i32 0, i32 0
272 // CHECK:   [[V0:%.*]] = load i64, i64* [[T1]], align 8
273 // CHECK:   call swiftcc void @take_union_het_fp(i64 [[V0]])
274 // CHECK:   ret void
275 // CHECK: }
276 
277 
278 typedef union {
279   float f1;
280   float f2;
281 } union_hom_fp;
282 TEST(union_hom_fp)
283 // CHECK-LABEL: define dso_local void @test_union_hom_fp()
284 // CHECK:   [[TMP:%.*]] = alloca [[REC:%.*]], align 4
285 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] float @return_union_hom_fp()
286 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP]] to [[AGG:{ float }]]*
287 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
288 // CHECK:   store float [[CALL]], float* [[T0]], align 4
289 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP]] to [[AGG]]*
290 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
291 // CHECK:   [[FIRST:%.*]] = load float, float* [[T0]], align 4
292 // CHECK:   call [[SWIFTCC]] void @take_union_hom_fp(float [[FIRST]])
293 // CHECK:   ret void
294 
295 typedef union {
296   float f1;
297   float4 fv2;
298 } union_hom_fp_partial;
299 TEST(union_hom_fp_partial)
300 // CHECK: define dso_local void @test_union_hom_fp_partial()
301 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
302 // CHECK:   [[CALL:%.*]] = call swiftcc { float, float, float, float } @return_union_hom_fp_partial()
303 // CHECK:   [[CAST:%.*]] = bitcast [[UNION]]* [[AGG]] to { float, float, float, float }*
304 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 0
305 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 0
306 // CHECK:   store float [[T1]], float* [[T0]], align 16
307 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 1
308 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 1
309 // CHECK:   store float [[T1]], float* [[T0]], align 4
310 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 2
311 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 2
312 // CHECK:   store float [[T1]], float* [[T0]], align 8
313 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 3
314 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 3
315 // CHECK:   store float [[T1]], float* [[T0]], align 4
316 // CHECK:   [[CAST:%.*]] = bitcast [[UNION]]* [[AGG]] to { float, float, float, float }*
317 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 0
318 // CHECK:   [[V0:%.*]] = load float, float* [[T0]], align 16
319 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 1
320 // CHECK:   [[V1:%.*]] = load float, float* [[T0]], align 4
321 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 2
322 // CHECK:   [[V2:%.*]] = load float, float* [[T0]], align 8
323 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, { float, float, float, float }* [[CAST]], i32 0, i32 3
324 // CHECK:   [[V3:%.*]] = load float, float* [[T0]], align 4
325 // CHECK:   call swiftcc void @take_union_hom_fp_partial(float [[V0]], float [[V1]], float [[V2]], float [[V3]])
326 // CHECK:   ret void
327 // CHECK: }
328 
329 typedef union {
330   struct { int x, y; } f1;
331   float4 fv2;
332 } union_het_fpv_partial;
333 TEST(union_het_fpv_partial)
334 // CHECK-LABEL: define dso_local void @test_union_het_fpv_partial()
335 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
336 // CHECK:   [[CALL:%.*]] = call swiftcc { i64, float, float } @return_union_het_fpv_partial()
337 // CHECK:   [[CAST:%.*]] = bitcast [[UNION]]* [[AGG]] to { i64, float, float }*
338 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, { i64, float, float }* [[CAST]], i32 0, i32 0
339 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 0
340 // CHECK:   store i64 [[T1]], i64* [[T0]], align 16
341 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, { i64, float, float }* [[CAST]], i32 0, i32 1
342 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 1
343 // CHECK:   store float [[T1]], float* [[T0]], align 8
344 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, { i64, float, float }* [[CAST]], i32 0, i32 2
345 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 2
346 // CHECK:   store float [[T1]], float* [[T0]], align 4
347 // CHECK:   [[CAST:%.*]] = bitcast [[UNION]]* [[AGG]] to { i64, float, float }*
348 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, { i64, float, float }* [[CAST]], i32 0, i32 0
349 // CHECK:   [[V0:%.*]] = load i64, i64* [[T0]], align 16
350 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, { i64, float, float }* [[CAST]], i32 0, i32 1
351 // CHECK:   [[V1:%.*]] = load float, float* [[T0]], align 8
352 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, { i64, float, float }* [[CAST]], i32 0, i32 2
353 // CHECK:   [[V2:%.*]] = load float, float* [[T0]], align 4
354 // CHECK:   call swiftcc void @take_union_het_fpv_partial(i64 [[V0]], float [[V1]], float [[V2]])
355 // CHECK:   ret void
356 // CHECK: }
357 
358 /*****************************************************************************/
359 /****************************** VECTOR LEGALIZATION **************************/
360 /*****************************************************************************/
361 
362 TEST(int4)
363 // CHECK-LABEL: define {{.*}} <4 x i32> @return_int4()
364 // CHECK-LABEL: define {{.*}} @take_int4(<4 x i32>
365 
366 TEST(int8)
367 // CHECK-LABEL: define {{.*}} @return_int8()
368 // CHECK:   [[RET:%.*]] = alloca [[REC:<8 x i32>]], align 32
369 // CHECK:   [[VAR:%.*]] = alloca [[REC]], align
370 // CHECK:   store
371 // CHECK:   load
372 // CHECK:   store
373 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[RET]] to [[AGG:{ <4 x i32>, <4 x i32> }]]*
374 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
375 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, <4 x i32>* [[T0]], align
376 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
377 // CHECK:   [[SECOND:%.*]] = load <4 x i32>, <4 x i32>* [[T0]], align
378 // CHECK:   [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, <4 x i32> }]] undef, <4 x i32> [[FIRST]], 0
379 // CHECK:   [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], <4 x i32> [[SECOND]], 1
380 // CHECK:   ret [[UAGG]] [[T1]]
381 // CHECK-LABEL: define {{.*}} @take_int8(<4 x i32> noundef %0, <4 x i32> noundef %1)
382 // CHECK:   [[V:%.*]] = alloca [[REC]], align
383 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[V]] to [[AGG]]*
384 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
385 // CHECK:   store <4 x i32> %0, <4 x i32>* [[T0]], align
386 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
387 // CHECK:   store <4 x i32> %1, <4 x i32>* [[T0]], align
388 // CHECK:   ret void
389 // CHECK-LABEL: define dso_local void @test_int8()
390 // CHECK:   [[TMP1:%.*]] = alloca [[REC]], align
391 // CHECK:   [[TMP2:%.*]] = alloca [[REC]], align
392 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int8()
393 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP1]] to [[AGG]]*
394 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
395 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
396 // CHECK:   store <4 x i32> [[T1]], <4 x i32>* [[T0]], align
397 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
398 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
399 // CHECK:   store <4 x i32> [[T1]], <4 x i32>* [[T0]], align
400 // CHECK:   [[V:%.*]] = load [[REC]], [[REC]]* [[TMP1]], align
401 // CHECK:   store [[REC]] [[V]], [[REC]]* [[TMP2]], align
402 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP2]] to [[AGG]]*
403 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
404 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, <4 x i32>* [[T0]], align
405 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
406 // CHECK:   [[SECOND:%.*]] = load <4 x i32>, <4 x i32>* [[T0]], align
407 // CHECK:   call [[SWIFTCC]] void @take_int8(<4 x i32> noundef [[FIRST]], <4 x i32> noundef [[SECOND]])
408 // CHECK:   ret void
409 
410 TEST(int5)
411 // CHECK-LABEL: define {{.*}} @return_int5()
412 // CHECK:   [[RET:%.*]] = alloca [[REC:<5 x i32>]], align 32
413 // CHECK:   [[VAR:%.*]] = alloca [[REC]], align
414 // CHECK:   store
415 // CHECK:   load
416 // CHECK:   store
417 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[RET]] to [[AGG:{ <4 x i32>, i32 }]]*
418 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
419 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, <4 x i32>* [[T0]], align
420 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
421 // CHECK:   [[SECOND:%.*]] = load i32, i32* [[T0]], align
422 // CHECK:   [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, i32 }]] undef, <4 x i32> [[FIRST]], 0
423 // CHECK:   [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], i32 [[SECOND]], 1
424 // CHECK:   ret [[UAGG]] [[T1]]
425 // CHECK-LABEL: define {{.*}} @take_int5(<4 x i32> %0, i32 %1)
426 // CHECK:   [[V:%.*]] = alloca [[REC]], align
427 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[V]] to [[AGG]]*
428 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
429 // CHECK:   store <4 x i32> %0, <4 x i32>* [[T0]], align
430 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
431 // CHECK:   store i32 %1, i32* [[T0]], align
432 // CHECK:   ret void
433 // CHECK-LABEL: define dso_local void @test_int5()
434 // CHECK:   [[TMP1:%.*]] = alloca [[REC]], align
435 // CHECK:   [[TMP2:%.*]] = alloca [[REC]], align
436 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int5()
437 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP1]] to [[AGG]]*
438 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
439 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
440 // CHECK:   store <4 x i32> [[T1]], <4 x i32>* [[T0]], align
441 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
442 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
443 // CHECK:   store i32 [[T1]], i32* [[T0]], align
444 // CHECK:   [[V:%.*]] = load [[REC]], [[REC]]* [[TMP1]], align
445 // CHECK:   store [[REC]] [[V]], [[REC]]* [[TMP2]], align
446 // CHECK:   [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP2]] to [[AGG]]*
447 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0
448 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, <4 x i32>* [[T0]], align
449 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 1
450 // CHECK:   [[SECOND:%.*]] = load i32, i32* [[T0]], align
451 // CHECK:   call [[SWIFTCC]] void @take_int5(<4 x i32> [[FIRST]], i32 [[SECOND]])
452 // CHECK:   ret void
453 
454 typedef struct {
455   int x;
456   int3 v __attribute__((packed));
457 } misaligned_int3;
458 TEST(misaligned_int3)
459 // CHECK-LABEL: define dso_local swiftcc void @take_misaligned_int3(i64 %0, i64 %1)
460