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 // 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(ptr noalias noundef sret(ptr) align 4 dereferenceable(4){{.*}}, ptr 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(ptr noalias noundef align 4 dereferenceable(4){{.*}}, ptr 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(ptr noalias sret({{.*}}) {{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}})
  24
  25 SWIFTCALL void context_1(CONTEXT void *self) {}
  26 // CHECK-LABEL: define {{.*}} void @context_1(ptr noundef swiftself
  27
  28 SWIFTCALL void context_2(void *arg0, CONTEXT void *self) {}
  29 // CHECK-LABEL: define {{.*}} void @context_2(ptr{{.*}}, ptr noundef swiftself
  30
  31 SWIFTCALL void context_error_1(CONTEXT int *self, ERROR float **error) {}
  32 // CHECK-LABEL: define {{.*}} void @context_error_1(ptr noundef swiftself{{.*}}, ptr noundef swifterror %0)
  33 // CHECK:       [[TEMP:%.*]] = alloca ptr, align 8
  34 // CHECK:       [[T0:%.*]] = load ptr, ptr [[ERRORARG:%.*]], align 8
  35 // CHECK:       store ptr [[T0]], ptr [[TEMP]], align 8
  36 // CHECK:       [[T0:%.*]] = load ptr, ptr [[TEMP]], align 8
  37 // CHECK:       store ptr [[T0]], ptr [[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 ptr, align 8
  46 // CHECK:       [[TEMP:%.*]] = alloca swifterror ptr, align 8
  47 // CHECK:       [[T0:%.*]] = load ptr, ptr [[ERROR]], align 8
  48 // CHECK:       store ptr [[T0]], ptr [[TEMP]], align 8
  49 // CHECK:       call [[SWIFTCC:swiftcc]] void @context_error_1(ptr noundef swiftself [[X]], ptr noundef swifterror [[TEMP]])
  50 // CHECK:       [[T0:%.*]] = load ptr, ptr [[TEMP]], align 8
  51 // CHECK:       store ptr [[T0]], ptr [[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{{.*}}, ptr noundef swiftself{{.*}}, ptr 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:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr %retval, i32 0, i32 0
 104 // CHECK:   [[T0:%.*]] = load i64, ptr [[GEP0]], align 4
 105 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr %retval, i32 0, i32 1
 106 // CHECK:   [[T1:%.*]] = load i64, ptr [[GEP1]], align 4
 107 // CHECK:   [[R0:%.*]] = insertvalue { i64, i64 } poison, i64 [[T0]], 0
 108 // CHECK:   [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
 109 // CHECK:   ret { i64, i64 } [[R1]]
 110 // CHECK: }
 111 // CHECK-LABEL: define dso_local swiftcc void @take_struct_1(i64 %0, i64 %1) {{.*}}{
 112 // CHECK:   [[V:%.*]] = alloca [[STRUCT1:%.*]], align 4
 113 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 0
 114 // CHECK:   store i64 %0, ptr [[GEP0]], align 4
 115 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 1
 116 // CHECK:   store i64 %1, ptr [[GEP1]], align 4
 117 // CHECK:   ret void
 118 // CHECK: }
 119 // CHECK-LABEL: define dso_local void @test_struct_1() {{.*}}{
 120 // CHECK:   [[AGG:%.*]] = alloca [[STRUCT1:%.*]], align 4
 121 // CHECK:   [[RET:%.*]] = call swiftcc { i64, i64 } @return_struct_1()
 122 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 0
 123 // CHECK:   [[E0:%.*]] = extractvalue { i64, i64 } [[RET]], 0
 124 // CHECK:   store i64 [[E0]], ptr [[GEP0]], align 4
 125 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 1
 126 // CHECK:   [[E1:%.*]] = extractvalue { i64, i64 } [[RET]], 1
 127 // CHECK:   store i64 [[E1]], ptr [[GEP1]], align 4
 128 // CHECK:   [[GEP2:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 0
 129 // CHECK:   [[V0:%.*]] = load i64, ptr [[GEP2]], align 4
 130 // CHECK:   [[GEP3:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 1
 131 // CHECK:   [[V1:%.*]] = load i64, ptr [[GEP3]], align 4
 132 // CHECK:   call swiftcc void @take_struct_1(i64 [[V0]], i64 [[V1]])
 133 // CHECK:   ret void
 134 // CHECK: }
 135
 136 typedef struct {
 137   int x;
 138   char c0;
 139   __attribute__((aligned(2))) char c1;
 140   int f0;
 141   int f1;
 142 } struct_2;
 143 TEST(struct_2);
 144 // CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_2() {{.*}}{
 145 // CHECK:   [[RET:%.*]] = alloca [[STRUCT2_TYPE]], align 4
 146 // CHECK:   call void @llvm.memcpy{{.*}}({{.*}}[[RET]], {{.*}}[[STRUCT2_RESULT]]
 147 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[RET]], i32 0, i32 0
 148 // CHECK:   [[T0:%.*]] = load i64, ptr [[GEP0]], align 4
 149 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[RET]], i32 0, i32 1
 150 // CHECK:   [[T1:%.*]] = load i64, ptr [[GEP1]], align 4
 151 // CHECK:   [[R0:%.*]] = insertvalue { i64, i64 } poison, i64 [[T0]], 0
 152 // CHECK:   [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
 153 // CHECK:   ret { i64, i64 } [[R1]]
 154 // CHECK: }
 155 // CHECK-LABEL: define dso_local swiftcc void @take_struct_2(i64 %0, i64 %1) {{.*}}{
 156 // CHECK:   [[V:%.*]] = alloca [[STRUCT:%.*]], align 4
 157 // CHECK:   [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 0
 158 // CHECK:   store i64 %0, ptr [[GEP0]], align 4
 159 // CHECK:   [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 1
 160 // CHECK:   store i64 %1, ptr [[GEP1]], align 4
 161 // CHECK:   ret void
 162 // CHECK: }
 163 // CHECK-LABEL: define dso_local void @test_struct_2() {{.*}} {
 164 // CHECK:   [[TMP:%.*]] = alloca [[STRUCT2_TYPE]], align 4
 165 // CHECK:   [[CALL:%.*]] = call swiftcc { i64, i64 } @return_struct_2()
 166 // CHECK:   [[GEP:%.*]] = getelementptr inbounds {{.*}} [[TMP]], i32 0, i32 0
 167 // CHECK:   [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 0
 168 // CHECK:   store i64 [[T0]], ptr [[GEP]], align 4
 169 // CHECK:   [[GEP:%.*]] = getelementptr inbounds {{.*}} [[TMP]], i32 0, i32 1
 170 // CHECK:   [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 1
 171 // CHECK:   store i64 [[T0]], ptr [[GEP]], align 4
 172 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[TMP]], i32 0, i32 0
 173 // CHECK:   [[R0:%.*]] = load i64, ptr [[GEP]], align 4
 174 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[TMP]], i32 0, i32 1
 175 // CHECK:   [[R1:%.*]] = load i64, ptr [[GEP]], align 4
 176 // CHECK:   call swiftcc void @take_struct_2(i64 [[R0]], i64 [[R1]])
 177 // CHECK:   ret void
 178 // CHECK: }
 179
 180 // There's no way to put a field randomly in the middle of an otherwise
 181 // empty storage unit in C, so that case has to be tested in C++, which
 182 // can use empty structs to introduce arbitrary padding.  (In C, they end up
 183 // with size 0 and so don't affect layout.)
 184
 185 // Misaligned data rule.
 186 typedef struct {
 187   char c0;
 188   __attribute__((packed)) float f;
 189 } struct_misaligned_1;
 190 TEST(struct_misaligned_1)
 191 // CHECK-LABEL: define dso_local swiftcc i64 @return_struct_misaligned_1()
 192 // CHECK:  [[RET:%.*]] = alloca [[STRUCT:%.*]], align 1
 193 // CHECK:  call void @llvm.memset{{.*}}(ptr align 1 [[RET]], i8 0, i64 5
 194 // CHECK:  [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[RET]], i32 0, i32 0
 195 // CHECK:  [[R0:%.*]] = load i64, ptr [[GEP]], align 1
 196 // CHECK:  ret i64 [[R0]]
 197 // CHECK:}
 198 // CHECK-LABEL: define dso_local swiftcc void @take_struct_misaligned_1(i64 %0) {{.*}}{
 199 // CHECK:   [[V:%.*]] = alloca [[STRUCT:%.*]], align 1
 200 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[V]], i32 0, i32 0
 201 // CHECK:   store i64 %0, ptr [[GEP]], align 1
 202 // CHECK:   ret void
 203 // CHECK: }
 204 // CHECK: define dso_local void @test_struct_misaligned_1() {{.*}}{
 205 // CHECK:   [[AGG:%.*]] = alloca [[STRUCT:%.*]], align 1
 206 // CHECK:   [[CALL:%.*]] = call swiftcc i64 @return_struct_misaligned_1()
 207 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
 208 // CHECK:   store i64 [[CALL]], ptr [[T1]], align 1
 209 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
 210 // CHECK:   [[P:%.*]] = load i64, ptr [[T1]], align 1
 211 // CHECK:   call swiftcc void @take_struct_misaligned_1(i64 [[P]])
 212 // CHECK:   ret void
 213 // CHECK: }
 214
 215 // Too many scalars.
 216 typedef struct {
 217   long long x[5];
 218 } struct_big_1;
 219 TEST(struct_big_1)
 220
 221 // CHECK-LABEL: define {{.*}} void @return_struct_big_1({{.*}} noalias sret
 222
 223 // Should not be byval.
 224 // CHECK-LABEL: define {{.*}} void @take_struct_big_1(ptr noundef{{( %.*)?}})
 225
 226 /*****************************************************************************/
 227 /********************************* TYPE MERGING ******************************/
 228 /*****************************************************************************/
 229
 230 typedef union {
 231   float f;
 232   double d;
 233 } union_het_fp;
 234 TEST(union_het_fp)
 235 // CHECK-LABEL: define dso_local swiftcc i64 @return_union_het_fp()
 236 // CHECK:  [[RET:%.*]] = alloca [[UNION:%.*]], align 8
 237 // CHECK:  call void @llvm.memcpy{{.*}}(ptr align {{[0-9]+}} [[RET]]
 238 // CHECK:  [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[RET]], i32 0, i32 0
 239 // CHECK:  [[R0:%.*]] = load i64, ptr [[GEP]], align 8
 240 // CHECK:  ret i64 [[R0]]
 241 // CHECK-LABEL: define dso_local swiftcc void @take_union_het_fp(i64 %0) {{.*}}{
 242 // CHECK:   [[V:%.*]] = alloca [[UNION:%.*]], align 8
 243 // CHECK:   [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[V]], i32 0, i32 0
 244 // CHECK:   store i64 %0, ptr [[GEP]], align 8
 245 // CHECK:   ret void
 246 // CHECK: }
 247 // CHECK-LABEL: define dso_local void @test_union_het_fp() {{.*}}{
 248 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 8
 249 // CHECK:   [[CALL:%.*]] = call swiftcc i64 @return_union_het_fp()
 250 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
 251 // CHECK:   store i64 [[CALL]], ptr [[T1]], align 8
 252 // CHECK:   [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
 253 // CHECK:   [[V0:%.*]] = load i64, ptr [[T1]], align 8
 254 // CHECK:   call swiftcc void @take_union_het_fp(i64 [[V0]])
 255 // CHECK:   ret void
 256 // CHECK: }
 257
 258
 259 typedef union {
 260   float f1;
 261   float f2;
 262 } union_hom_fp;
 263 TEST(union_hom_fp)
 264 // CHECK-LABEL: define dso_local void @test_union_hom_fp()
 265 // CHECK:   [[TMP:%.*]] = alloca [[REC:%.*]], align 4
 266 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] float @return_union_hom_fp()
 267 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG:{ float }]], ptr [[TMP]], i32 0, i32 0
 268 // CHECK:   store float [[CALL]], ptr [[T0]], align 4
 269 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP]], i32 0, i32 0
 270 // CHECK:   [[FIRST:%.*]] = load float, ptr [[T0]], align 4
 271 // CHECK:   call [[SWIFTCC]] void @take_union_hom_fp(float [[FIRST]])
 272 // CHECK:   ret void
 273
 274 typedef union {
 275   float f1;
 276   float4 fv2;
 277 } union_hom_fp_partial;
 278 TEST(union_hom_fp_partial)
 279 // CHECK: define dso_local void @test_union_hom_fp_partial()
 280 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
 281 // CHECK:   [[CALL:%.*]] = call swiftcc { float, float, float, float } @return_union_hom_fp_partial()
 282 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 0
 283 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 0
 284 // CHECK:   store float [[T1]], ptr [[T0]], align 16
 285 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 1
 286 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 1
 287 // CHECK:   store float [[T1]], ptr [[T0]], align 4
 288 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 2
 289 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 2
 290 // CHECK:   store float [[T1]], ptr [[T0]], align 8
 291 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 3
 292 // CHECK:   [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 3
 293 // CHECK:   store float [[T1]], ptr [[T0]], align 4
 294 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 0
 295 // CHECK:   [[V0:%.*]] = load float, ptr [[T0]], align 16
 296 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 1
 297 // CHECK:   [[V1:%.*]] = load float, ptr [[T0]], align 4
 298 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 2
 299 // CHECK:   [[V2:%.*]] = load float, ptr [[T0]], align 8
 300 // CHECK:   [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 3
 301 // CHECK:   [[V3:%.*]] = load float, ptr [[T0]], align 4
 302 // CHECK:   call swiftcc void @take_union_hom_fp_partial(float [[V0]], float [[V1]], float [[V2]], float [[V3]])
 303 // CHECK:   ret void
 304 // CHECK: }
 305
 306 typedef union {
 307   struct { int x, y; } f1;
 308   float4 fv2;
 309 } union_het_fpv_partial;
 310 TEST(union_het_fpv_partial)
 311 // CHECK-LABEL: define dso_local void @test_union_het_fpv_partial()
 312 // CHECK:   [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
 313 // CHECK:   [[CALL:%.*]] = call swiftcc { i64, float, float } @return_union_het_fpv_partial()
 314 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 0
 315 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 0
 316 // CHECK:   store i64 [[T1]], ptr [[T0]], align 16
 317 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 1
 318 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 1
 319 // CHECK:   store float [[T1]], ptr [[T0]], align 8
 320 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 2
 321 // CHECK:   [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 2
 322 // CHECK:   store float [[T1]], ptr [[T0]], align 4
 323 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 0
 324 // CHECK:   [[V0:%.*]] = load i64, ptr [[T0]], align 16
 325 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 1
 326 // CHECK:   [[V1:%.*]] = load float, ptr [[T0]], align 8
 327 // CHECK:   [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 2
 328 // CHECK:   [[V2:%.*]] = load float, ptr [[T0]], align 4
 329 // CHECK:   call swiftcc void @take_union_het_fpv_partial(i64 [[V0]], float [[V1]], float [[V2]])
 330 // CHECK:   ret void
 331 // CHECK: }
 332
 333 /*****************************************************************************/
 334 /****************************** VECTOR LEGALIZATION **************************/
 335 /*****************************************************************************/
 336
 337 TEST(int4)
 338 // CHECK-LABEL: define {{.*}} <4 x i32> @return_int4()
 339 // CHECK-LABEL: define {{.*}} @take_int4(<4 x i32>
 340
 341 TEST(int8)
 342 // CHECK-LABEL: define {{.*}} @return_int8()
 343 // CHECK:   [[RET:%.*]] = alloca [[REC:<8 x i32>]], align 32
 344 // CHECK:   [[VAR:%.*]] = alloca [[REC]], align
 345 // CHECK:   store
 346 // CHECK:   load
 347 // CHECK:   store
 348 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG:{ <4 x i32>, <4 x i32> }]], ptr [[RET]], i32 0, i32 0
 349 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 350 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[RET]], i32 0, i32 1
 351 // CHECK:   [[SECOND:%.*]] = load <4 x i32>, ptr [[T0]], align
 352 // CHECK:   [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, <4 x i32> }]] poison, <4 x i32> [[FIRST]], 0
 353 // CHECK:   [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], <4 x i32> [[SECOND]], 1
 354 // CHECK:   ret [[UAGG]] [[T1]]
 355 // CHECK-LABEL: define {{.*}} @take_int8(<4 x i32> noundef %0, <4 x i32> noundef %1)
 356 // CHECK:   [[V:%.*]] = alloca [[REC]], align
 357 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 0
 358 // CHECK:   store <4 x i32> %0, ptr [[T0]], align
 359 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 1
 360 // CHECK:   store <4 x i32> %1, ptr [[T0]], align
 361 // CHECK:   ret void
 362 // CHECK-LABEL: define dso_local void @test_int8()
 363 // CHECK:   [[TMP1:%.*]] = alloca [[REC]], align
 364 // CHECK:   [[TMP2:%.*]] = alloca [[REC]], align
 365 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int8()
 366 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 0
 367 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
 368 // CHECK:   store <4 x i32> [[T1]], ptr [[T0]], align
 369 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 1
 370 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
 371 // CHECK:   store <4 x i32> [[T1]], ptr [[T0]], align
 372 // CHECK:   [[V:%.*]] = load [[REC]], ptr [[TMP1]], align
 373 // CHECK:   store [[REC]] [[V]], ptr [[TMP2]], align
 374 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 0
 375 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 376 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 1
 377 // CHECK:   [[SECOND:%.*]] = load <4 x i32>, ptr [[T0]], align
 378 // CHECK:   call [[SWIFTCC]] void @take_int8(<4 x i32> noundef [[FIRST]], <4 x i32> noundef [[SECOND]])
 379 // CHECK:   ret void
 380
 381 TEST(int5)
 382 // CHECK-LABEL: define {{.*}} @return_int5()
 383 // CHECK:   [[RET:%.*]] = alloca [[REC:<5 x i32>]], align 32
 384 // CHECK:   [[VAR:%.*]] = alloca [[REC]], align
 385 // CHECK:   store
 386 // CHECK:   load
 387 // CHECK:   store
 388 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG:{ <4 x i32>, i32 }]], ptr [[RET]], i32 0, i32 0
 389 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 390 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[RET]], i32 0, i32 1
 391 // CHECK:   [[SECOND:%.*]] = load i32, ptr [[T0]], align
 392 // CHECK:   [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, i32 }]] poison, <4 x i32> [[FIRST]], 0
 393 // CHECK:   [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], i32 [[SECOND]], 1
 394 // CHECK:   ret [[UAGG]] [[T1]]
 395 // CHECK-LABEL: define {{.*}} @take_int5(<4 x i32> %0, i32 %1)
 396 // CHECK:   [[V:%.*]] = alloca [[REC]], align
 397 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 0
 398 // CHECK:   store <4 x i32> %0, ptr [[T0]], align
 399 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 1
 400 // CHECK:   store i32 %1, ptr [[T0]], align
 401 // CHECK:   ret void
 402 // CHECK-LABEL: define dso_local void @test_int5()
 403 // CHECK:   [[TMP1:%.*]] = alloca [[REC]], align
 404 // CHECK:   [[TMP2:%.*]] = alloca [[REC]], align
 405 // CHECK:   [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int5()
 406 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 0
 407 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
 408 // CHECK:   store <4 x i32> [[T1]], ptr [[T0]], align
 409 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 1
 410 // CHECK:   [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
 411 // CHECK:   store i32 [[T1]], ptr [[T0]], align
 412 // CHECK:   [[V:%.*]] = load [[REC]], ptr [[TMP1]], align
 413 // CHECK:   store [[REC]] [[V]], ptr [[TMP2]], align
 414 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 0
 415 // CHECK:   [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
 416 // CHECK:   [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 1
 417 // CHECK:   [[SECOND:%.*]] = load i32, ptr [[T0]], align
 418 // CHECK:   call [[SWIFTCC]] void @take_int5(<4 x i32> [[FIRST]], i32 [[SECOND]])
 419 // CHECK:   ret void
 420
 421 typedef struct {
 422   int x;
 423   int3 v __attribute__((packed));
 424 } misaligned_int3;
 425 TEST(misaligned_int3)
 426 // CHECK-LABEL: define dso_local swiftcc void @take_misaligned_int3(i64 %0, i64 %1)