clang/test/CodeGen/windows-swiftcall.c

   1 // RUN: %clang_cc1 -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 /*****************************************************************************/
   9 /****************************** PARAMETER ABIS *******************************/
  10 /*****************************************************************************/
  11
  12 SWIFTCALL void indirect_result_1(OUT int *arg0, OUT float *arg1) {}
  13 // CHECK-LABEL: define {{.*}} void @indirect_result_1(ptr noalias noundef sret(ptr) align 4 dereferenceable(4){{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}})
  14
  15 // TODO: maybe this shouldn't suppress sret.
  16 SWIFTCALL int indirect_result_2(OUT int *arg0, OUT float *arg1) {  __builtin_unreachable(); }
  17 // CHECK-LABEL: define {{.*}} i32 @indirect_result_2(ptr noalias noundef align 4 dereferenceable(4){{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}})
  18
  19 typedef struct { char array[1024]; } struct_reallybig;
  20 SWIFTCALL struct_reallybig indirect_result_3(OUT int *arg0, OUT float *arg1) { __builtin_unreachable(); }
  21 // CHECK-LABEL: define {{.*}} void @indirect_result_3(ptr dead_on_unwind noalias writable sret({{.*}}) {{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}})
  22
  23 SWIFTCALL void context_1(CONTEXT void *self) {}
  24 // CHECK-LABEL: define {{.*}} void @context_1(ptr noundef swiftself
  25
  26 SWIFTCALL void context_2(void *arg0, CONTEXT void *self) {}
  27 // CHECK-LABEL: define {{.*}} void @context_2(ptr{{.*}}, ptr noundef swiftself
  28
  29 SWIFTCALL void context_error_1(CONTEXT int *self, ERROR float **error) {}
  30 // CHECK-LABEL: define {{.*}} void @context_error_1(ptr noundef swiftself{{.*}}, ptr noundef swifterror %0)
  31 // CHECK:       [[TEMP:%.*]] = alloca ptr, align 8
  32 // CHECK:       [[T0:%.*]] = load ptr, ptr [[ERRORARG:%.*]], align 8
  33 // CHECK:       store ptr [[T0]], ptr [[TEMP]], align 8
  34 // CHECK:       [[T0:%.*]] = load ptr, ptr [[TEMP]], align 8
  35 // CHECK:       store ptr [[T0]], ptr [[ERRORARG]], align 8
  36 void test_context_error_1(void) {
  37   int x;
  38   float *error;
  39   context_error_1(&x, &error);
  40 }
  41 // CHECK-LABEL: define dso_local void @test_context_error_1()
  42 // CHECK:       [[X:%.*]] = alloca i32, align 4
  43 // CHECK:       [[ERROR:%.*]] = alloca ptr, align 8
  44 // CHECK:       [[TEMP:%.*]] = alloca swifterror ptr, align 8
  45 // CHECK:       [[T0:%.*]] = load ptr, ptr [[ERROR]], align 8
  46 // CHECK:       store ptr [[T0]], ptr [[TEMP]], align 8
  47 // CHECK:       call [[SWIFTCC:swiftcc]] void @context_error_1(ptr noundef swiftself [[X]], ptr noundef swifterror [[TEMP]])
  48 // CHECK:       [[T0:%.*]] = load ptr, ptr [[TEMP]], align 8
  49 // CHECK:       store ptr [[T0]], ptr [[ERROR]], align 8
  50
  51 SWIFTCALL void context_error_2(short s, CONTEXT int *self, ERROR float **error) {}
  52 // CHECK-LABEL: define {{.*}} void @context_error_2(i16{{.*}}, ptr noundef swiftself{{.*}}, ptr noundef swifterror %0)
  53
  54 /*****************************************************************************/
  55 /********************************** LOWERING *********************************/
  56 /*****************************************************************************/
  57
  58 typedef float float4 __attribute__((ext_vector_type(4)));
  59 typedef float float8 __attribute__((ext_vector_type(8)));
  60 typedef double double2 __attribute__((ext_vector_type(2)));
  61 typedef double double4 __attribute__((ext_vector_type(4)));
  62 typedef int int3 __attribute__((ext_vector_type(3)));
  63 typedef int int4 __attribute__((ext_vector_type(4)));
  64 typedef int int5 __attribute__((ext_vector_type(5)));
  65 typedef int int8 __attribute__((ext_vector_type(8)));
  66
  67 #define TEST(TYPE)                       \
  68   SWIFTCALL TYPE return_##TYPE(void) {   \
  69     TYPE result = {};                    \
  70     return result;                       \
  71   }                                      \
  72   SWIFTCALL void take_##TYPE(TYPE v) {   \
  73   }                                      \
  74   void test_##TYPE(void) {               \
  75     take_##TYPE(return_##TYPE());        \
  76   }
  77
  78 /*****************************************************************************/
  79 /*********************************** STRUCTS *********************************/
  80 /*****************************************************************************/
  81
  82 typedef struct {
  83 } struct_empty;
  84 TEST(struct_empty);
  85 // CHECK-LABEL: define {{.*}} @return_struct_empty()
  86 // CHECK:   ret void
  87 // CHECK-LABEL: define {{.*}} @take_struct_empty()
  88 // CHECK:   ret void
  89
  90 typedef struct {
  91   int x;
  92   char c0;
  93   char c1;
  94   int f0;
  95   int f1;
  96 } struct_1;
  97 TEST(struct_1);
  98 // CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_1() {{.*}}{
  99 // CHECK:   [[RET:%.*]] = alloca [[STRUCT1:%.*]], align 4
 100 // CHECK:   call void @llvm.memset
 101 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr %retval, i32 0, i32 0
 102 // CHECK:   [[T0:%.*]] = load i64, ptr [[GEP0]], align 4
 103 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr %retval, i32 0, i32 1
 104 // CHECK:   [[T1:%.*]] = load i64, ptr [[GEP1]], align 4
 105 // CHECK:   [[R0:%.*]] = insertvalue { i64, i64 } poison, i64 [[T0]], 0
 106 // CHECK:   [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
 107 // CHECK:   ret { i64, i64 } [[R1]]
 108 // CHECK: }
 109 // CHECK-LABEL: define dso_local swiftcc void @take_struct_1(i64 %0, i64 %1) {{.*}}{
 110 // CHECK:   [[V:%.*]] = alloca [[STRUCT1:%.*]], align 4
 111 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[V]], i32 0, i32 0
 112 // CHECK:   store i64 %0, ptr [[GEP0]], align 4
 113 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[V]], i32 0, i32 1
 114 // CHECK:   store i64 %1, ptr [[GEP1]], align 4
 115 // CHECK:   ret void
 116 // CHECK: }
 117 // CHECK-LABEL: define dso_local void @test_struct_1() {{.*}}{
 118 // CHECK:   [[AGG:%.*]] = alloca [[STRUCT1:%.*]], align 4
 119 // CHECK:   [[RET:%.*]] = call swiftcc { i64, i64 } @return_struct_1()
 120 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[AGG]], i32 0, i32 0
 121 // CHECK:   [[E0:%.*]] = extractvalue { i64, i64 } [[RET]], 0
 122 // CHECK:   store i64 [[E0]], ptr [[GEP0]], align 4
 123 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[AGG]], i32 0, i32 1
 124 // CHECK:   [[E1:%.*]] = extractvalue { i64, i64 } [[RET]], 1
 125 // CHECK:   store i64 [[E1]], ptr [[GEP1]], align 4
 126 // CHECK:   [[GEP2:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[AGG]], i32 0, i32 0
 127 // CHECK:   [[V0:%.*]] = load i64, ptr [[GEP2]], align 4
 128 // CHECK:   [[GEP3:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[AGG]], i32 0, i32 1
 129 // CHECK:   [[V1:%.*]] = load i64, ptr [[GEP3]], align 4
 130 // CHECK:   call swiftcc void @take_struct_1(i64 [[V0]], i64 [[V1]])
 131 // CHECK:   ret void
 132 // CHECK: }
 133
 134 typedef struct {
 135   int x;
 136   char c0;
 137   __attribute__((aligned(2))) char c1;
 138   int f0;
 139   int f1;
 140 } struct_2;
 141 TEST(struct_2);
 142 // CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_2() {{.*}}{
 143 // CHECK:   [[RET:%.*]] = alloca [[STRUCT2:%.*]], align 4
 144 // CHECK:   call void @llvm.memset
 145 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[RET]], i32 0, i32 0
 146 // CHECK:   [[T0:%.*]] = load i64, ptr [[GEP0]], align 4
 147 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[RET]], i32 0, i32 1
 148 // CHECK:   [[T1:%.*]] = load i64, ptr [[GEP1]], align 4
 149 // CHECK:   [[R0:%.*]] = insertvalue { i64, i64 } poison, i64 [[T0]], 0
 150 // CHECK:   [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
 151 // CHECK:   ret { i64, i64 } [[R1]]
 152 // CHECK: }
 153 // CHECK-LABEL: define dso_local swiftcc void @take_struct_2(i64 %0, i64 %1) {{.*}}{
 154 // CHECK:   [[V:%.*]] = alloca [[STRUCT2]], align 4
 155 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[V]], i32 0, i32 0
 156 // CHECK:   store i64 %0, ptr [[GEP0]], align 4
 157 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[V]], i32 0, i32 1
 158 // CHECK:   store i64 %1, ptr [[GEP1]], align 4
 159 // CHECK:   ret void
 160 // CHECK: }
 161 // CHECK-LABEL: define dso_local void @test_struct_2() {{.*}} {
 162 // CHECK:   [[TMP:%.*]] = alloca [[STRUCT2]], align 4
 163 // CHECK:   [[CALL:%.*]] = call swiftcc { i64, i64 } @return_struct_2()
 164 // CHECK:   [[GEP:%.*]] = getelementptr inbounds nuw {{.*}} [[TMP]], i32 0, i32 0
 165 // CHECK:   [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 0
 166 // CHECK:   store i64 [[T0]], ptr [[GEP]], align 4
 167 // CHECK:   [[GEP:%.*]] = getelementptr inbounds nuw {{.*}} [[TMP]], i32 0, i32 1
 168 // CHECK:   [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 1
 169 // CHECK:   store i64 [[T0]], ptr [[GEP]], align 4
 170 // CHECK:   [[GEP:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[TMP]], i32 0, i32 0
 171 // CHECK:   [[R0:%.*]] = load i64, ptr [[GEP]], align 4
 172 // CHECK:   [[GEP:%.*]] = getelementptr inbounds nuw { i64, i64 }, ptr [[TMP]], i32 0, i32 1
 173 // CHECK:   [[R1:%.*]] = load i64, ptr [[GEP]], align 4
 174 // CHECK:   call swiftcc void @take_struct_2(i64 [[R0]], i64 [[R1]])
 175 // CHECK:   ret void
 176 // CHECK: }
 177
 178 // There's no way to put a field randomly in the middle of an otherwise
 179 // empty storage unit in C, so that case has to be tested in C++, which
 180 // can use empty structs to introduce arbitrary padding.  (In C, they end up
 181 // with size 0 and so don't affect layout.)
 182
 183 // Misaligned data rule.
 184 typedef struct {
 185   char c0;
 186   __attribute__((packed)) float f;
 187 } struct_misaligned_1;
 188 TEST(struct_misaligned_1)
 189 // CHECK-LABEL: define dso_local swiftcc i64 @return_struct_misaligned_1()
 190 // CHECK:  [[RET:%.*]] = alloca [[STRUCT:%.*]], align 1
 191 // CHECK:  call void @llvm.memset{{.*}}(ptr align 1 [[RET]], i8 0, i64 5
 192 // CHECK:  [[GEP:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[RET]], i32 0, i32 0
 193 // CHECK:  [[R0:%.*]] = load i64, ptr [[GEP]], align 1
 194 // CHECK:  ret i64 [[R0]]
 195 // CHECK:}
 196 // CHECK-LABEL: define dso_local swiftcc void @take_struct_misaligned_1(i64 %0) {{.*}}{
 197 // CHECK:   [[V:%.*]] = alloca [[STRUCT:%.*]], align 1
 198 // CHECK:   [[GEP:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[V]], i32 0, i32 0
 199 // CHECK:   store i64 %0, ptr [[GEP]], align 1
 200 // CHECK:   ret void
 201 // CHECK: }
 202 // CHECK: define dso_local void @test_struct_misaligned_1() {{.*}}{
 203 // CHECK:   [[AGG:%.*]] = alloca [[STRUCT:%.*]], align 1
 204 // CHECK:   [[CALL:%.*]] = call swiftcc i64 @return_struct_misaligned_1()
 205 // CHECK:   [[T1:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[AGG]], i32 0, i32 0
 206 // CHECK:   store i64 [[CALL]], ptr [[T1]], align 1
 207 // CHECK:   [[T1:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[AGG]], i32 0, i32 0
 208 // CHECK:   [[P:%.*]] = load i64, ptr [[T1]], align 1
 209 // CHECK:   call swiftcc void @take_struct_misaligned_1(i64 [[P]])
 210 // CHECK:   ret void
 211 // CHECK: }
 212
 213 // Too many scalars.
 214 typedef struct {
 215   long long x[5];
 216 } struct_big_1;
 217 TEST(struct_big_1)
 218
 219 // CHECK-LABEL: define {{.*}} void @return_struct_big_1({{.*}} dead_on_unwind noalias writable sret
 220
 221 // Should not be byval.
 222 // CHECK-LABEL: define {{.*}} void @take_struct_big_1(ptr noundef{{( %.*)?}})
 223
 224 /*****************************************************************************/
 225 /********************************* TYPE MERGING ******************************/
 226 /*****************************************************************************/
 227
 228 typedef union {
 229   float f;
 230   double d;
 231 } union_het_fp;
 232 TEST(union_het_fp)
 233 // CHECK-LABEL: define dso_local swiftcc i64 @return_union_het_fp()
 234 // CHECK:  [[RET:%.*]] = alloca [[UNION:%.*]], align 8
 235 // CHECK:  call void @llvm.memset{{.*}}(ptr align {{[0-9]+}} [[RET]]
 236 // CHECK:  [[GEP:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[RET]], i32 0, i32 0
 237 // CHECK:  [[R0:%.*]] = load i64, ptr [[GEP]], align 8
 238 // CHECK:  ret i64 [[R0]]
 239 // CHECK-LABEL: define dso_local swiftcc void @take_union_het_fp(i64 %0) {{.*}}{
 240 // CHECK:   [[V:%.*]] = alloca [[UNION:%.*]], align 8
 241 // CHECK:   [[GEP:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[V]], i32 0, i32 0
 242 // CHECK:   store i64 %0, ptr [[GEP]], align 8
 243 // CHECK:   ret void
 244 // CHECK: }
 245 // CHECK-LABEL: define dso_local void @test_union_het_fp() {{.*}}{
 246 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 8
 247 // CHECK:   [[CALL:%.*]] = call swiftcc i64 @return_union_het_fp()
 248 // CHECK:   [[T1:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[AGG]], i32 0, i32 0
 249 // CHECK:   store i64 [[CALL]], ptr [[T1]], align 8
 250 // CHECK:   [[T1:%.*]] = getelementptr inbounds nuw { i64 }, ptr [[AGG]], i32 0, i32 0
 251 // CHECK:   [[V0:%.*]] = load i64, ptr [[T1]], align 8
 252 // CHECK:   call swiftcc void @take_union_het_fp(i64 [[V0]])
 253 // CHECK:   ret void
 254 // CHECK: }
 255
 256
 257 typedef union {
 258   float f1;
 259   float f2;
 260 } union_hom_fp;
 261 TEST(union_hom_fp)
 262 // CHECK-LABEL: define dso_local void @test_union_hom_fp()
 263 // CHECK:   [[TMP:%.*]] = alloca [[REC:%.*]], align 4
 264 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] float @return_union_hom_fp()
 265 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG:{ float }]], ptr [[TMP]], i32 0, i32 0
 266 // CHECK:   store float [[CALL]], ptr [[T0]], align 4
 267 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP]], i32 0, i32 0
 268 // CHECK:   [[FIRST:%.*]] = load float, ptr [[T0]], align 4
 269 // CHECK:   call [[SWIFTCC]] void @take_union_hom_fp(float [[FIRST]])
 270 // CHECK:   ret void
 271
 272 typedef union {
 273   float f1;
 274   float4 fv2;
 275 } union_hom_fp_partial;
 276 TEST(union_hom_fp_partial)
 277 // CHECK: define dso_local void @test_union_hom_fp_partial()
 278 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
 279 // CHECK:   [[CALL:%.*]] = call swiftcc { float, float, float, float } @return_union_hom_fp_partial()
 280 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 0
 281 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 0
 282 // CHECK:   store float [[T1]], ptr [[T0]], align 16
 283 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 1
 284 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 1
 285 // CHECK:   store float [[T1]], ptr [[T0]], align 4
 286 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 2
 287 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 2
 288 // CHECK:   store float [[T1]], ptr [[T0]], align 8
 289 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 3
 290 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 3
 291 // CHECK:   store float [[T1]], ptr [[T0]], align 4
 292 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 0
 293 // CHECK:   [[V0:%.*]] = load float, ptr [[T0]], align 16
 294 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 1
 295 // CHECK:   [[V1:%.*]] = load float, ptr [[T0]], align 4
 296 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 2
 297 // CHECK:   [[V2:%.*]] = load float, ptr [[T0]], align 8
 298 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { float, float, float, float }, ptr [[AGG]], i32 0, i32 3
 299 // CHECK:   [[V3:%.*]] = load float, ptr [[T0]], align 4
 300 // CHECK:   call swiftcc void @take_union_hom_fp_partial(float [[V0]], float [[V1]], float [[V2]], float [[V3]])
 301 // CHECK:   ret void
 302 // CHECK: }
 303
 304 typedef union {
 305   struct { int x, y; } f1;
 306   float4 fv2;
 307 } union_het_fpv_partial;
 308 TEST(union_het_fpv_partial)
 309 // CHECK-LABEL: define dso_local void @test_union_het_fpv_partial()
 310 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
 311 // CHECK:   [[CALL:%.*]] = call swiftcc { i64, float, float } @return_union_het_fpv_partial()
 312 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { i64, float, float }, ptr [[AGG]], i32 0, i32 0
 313 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 0
 314 // CHECK:   store i64 [[T1]], ptr [[T0]], align 16
 315 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { i64, float, float }, ptr [[AGG]], i32 0, i32 1
 316 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 1
 317 // CHECK:   store float [[T1]], ptr [[T0]], align 8
 318 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { i64, float, float }, ptr [[AGG]], i32 0, i32 2
 319 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 2
 320 // CHECK:   store float [[T1]], ptr [[T0]], align 4
 321 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { i64, float, float }, ptr [[AGG]], i32 0, i32 0
 322 // CHECK:   [[V0:%.*]] = load i64, ptr [[T0]], align 16
 323 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { i64, float, float }, ptr [[AGG]], i32 0, i32 1
 324 // CHECK:   [[V1:%.*]] = load float, ptr [[T0]], align 8
 325 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw { i64, float, float }, ptr [[AGG]], i32 0, i32 2
 326 // CHECK:   [[V2:%.*]] = load float, ptr [[T0]], align 4
 327 // CHECK:   call swiftcc void @take_union_het_fpv_partial(i64 [[V0]], float [[V1]], float [[V2]])
 328 // CHECK:   ret void
 329 // CHECK: }
 330
 331 /*****************************************************************************/
 332 /****************************** VECTOR LEGALIZATION **************************/
 333 /*****************************************************************************/
 334
 335 TEST(int4)
 336 // CHECK-LABEL: define {{.*}} <4 x i32> @return_int4()
 337 // CHECK-LABEL: define {{.*}} @take_int4(<4 x i32>
 338
 339 TEST(int8)
 340 // CHECK-LABEL: define {{.*}} @return_int8()
 341 // CHECK:   [[RET:%.*]] = alloca [[REC:<8 x i32>]], align 32
 342 // CHECK:   [[VAR:%.*]] = alloca [[REC]], align
 343 // CHECK:   store
 344 // CHECK:   load
 345 // CHECK:   store
 346 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG:{ <4 x i32>, <4 x i32> }]], ptr [[RET]], i32 0, i32 0
 347 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 348 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[RET]], i32 0, i32 1
 349 // CHECK:   [[SECOND:%.*]] = load <4 x i32>, ptr [[T0]], align
 350 // CHECK:   [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, <4 x i32> }]] poison, <4 x i32> [[FIRST]], 0
 351 // CHECK:   [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], <4 x i32> [[SECOND]], 1
 352 // CHECK:   ret [[UAGG]] [[T1]]
 353 // CHECK-LABEL: define {{.*}} @take_int8(<4 x i32> noundef %0, <4 x i32> noundef %1)
 354 // CHECK:   [[V:%.*]] = alloca [[REC]], align
 355 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[V]], i32 0, i32 0
 356 // CHECK:   store <4 x i32> %0, ptr [[T0]], align
 357 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[V]], i32 0, i32 1
 358 // CHECK:   store <4 x i32> %1, ptr [[T0]], align
 359 // CHECK:   ret void
 360 // CHECK-LABEL: define dso_local void @test_int8()
 361 // CHECK:   [[TMP1:%.*]] = alloca [[REC]], align
 362 // CHECK:   [[TMP2:%.*]] = alloca [[REC]], align
 363 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int8()
 364 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP1]], i32 0, i32 0
 365 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
 366 // CHECK:   store <4 x i32> [[T1]], ptr [[T0]], align
 367 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP1]], i32 0, i32 1
 368 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
 369 // CHECK:   store <4 x i32> [[T1]], ptr [[T0]], align
 370 // CHECK:   [[V:%.*]] = load [[REC]], ptr [[TMP1]], align
 371 // CHECK:   store [[REC]] [[V]], ptr [[TMP2]], align
 372 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP2]], i32 0, i32 0
 373 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 374 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP2]], i32 0, i32 1
 375 // CHECK:   [[SECOND:%.*]] = load <4 x i32>, ptr [[T0]], align
 376 // CHECK:   call [[SWIFTCC]] void @take_int8(<4 x i32> noundef [[FIRST]], <4 x i32> noundef [[SECOND]])
 377 // CHECK:   ret void
 378
 379 TEST(int5)
 380 // CHECK-LABEL: define {{.*}} @return_int5()
 381 // CHECK:   [[RET:%.*]] = alloca [[REC:<5 x i32>]], align 32
 382 // CHECK:   [[VAR:%.*]] = alloca [[REC]], align
 383 // CHECK:   store
 384 // CHECK:   load
 385 // CHECK:   store
 386 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG:{ <4 x i32>, i32 }]], ptr [[RET]], i32 0, i32 0
 387 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 388 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[RET]], i32 0, i32 1
 389 // CHECK:   [[SECOND:%.*]] = load i32, ptr [[T0]], align
 390 // CHECK:   [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, i32 }]] poison, <4 x i32> [[FIRST]], 0
 391 // CHECK:   [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], i32 [[SECOND]], 1
 392 // CHECK:   ret [[UAGG]] [[T1]]
 393 // CHECK-LABEL: define {{.*}} @take_int5(<4 x i32> %0, i32 %1)
 394 // CHECK:   [[V:%.*]] = alloca [[REC]], align
 395 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[V]], i32 0, i32 0
 396 // CHECK:   store <4 x i32> %0, ptr [[T0]], align
 397 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[V]], i32 0, i32 1
 398 // CHECK:   store i32 %1, ptr [[T0]], align
 399 // CHECK:   ret void
 400 // CHECK-LABEL: define dso_local void @test_int5()
 401 // CHECK:   [[TMP1:%.*]] = alloca [[REC]], align
 402 // CHECK:   [[TMP2:%.*]] = alloca [[REC]], align
 403 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int5()
 404 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP1]], i32 0, i32 0
 405 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
 406 // CHECK:   store <4 x i32> [[T1]], ptr [[T0]], align
 407 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP1]], i32 0, i32 1
 408 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
 409 // CHECK:   store i32 [[T1]], ptr [[T0]], align
 410 // CHECK:   [[V:%.*]] = load [[REC]], ptr [[TMP1]], align
 411 // CHECK:   store [[REC]] [[V]], ptr [[TMP2]], align
 412 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP2]], i32 0, i32 0
 413 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 414 // CHECK:   [[T0:%.*]] = getelementptr inbounds nuw [[AGG]], ptr [[TMP2]], i32 0, i32 1
 415 // CHECK:   [[SECOND:%.*]] = load i32, ptr [[T0]], align
 416 // CHECK:   call [[SWIFTCC]] void @take_int5(<4 x i32> [[FIRST]], i32 [[SECOND]])
 417 // CHECK:   ret void
 418
 419 typedef struct {
 420   int x;
 421   int3 v __attribute__((packed));
 422 } misaligned_int3;
 423 TEST(misaligned_int3)
 424 // CHECK-LABEL: define dso_local swiftcc void @take_misaligned_int3(i64 %0, i64 %1)