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clang-p2996/clang/test/CodeGen/windows-swiftcall.c
Nikita Popov 158d72d728 [Clang] Set writable and dead_on_unwind attributes on sret arguments (#77116) 
Set the writable and dead_on_unwind attributes for sret arguments. These
indicate that the argument points to writable memory (and it's legal to
introduce spurious writes to it on entry to the function) and that the
argument memory will not be used if the call unwinds.

This enables additional MemCpyOpt/DSE/LICM optimizations.
2024-01-11 09:46:54 +01:00

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// RUN: %clang_cc1 -triple x86_64-unknown-windows -emit-llvm -target-cpu core2 -o - %s | FileCheck %s
#define SWIFTCALL __attribute__((swiftcall))
#define OUT __attribute__((swift_indirect_result))
#define ERROR __attribute__((swift_error_result))
#define CONTEXT __attribute__((swift_context))
// CHECK: [[STRUCT2_RESULT:@.*]] = private {{.*}} constant [[STRUCT2_TYPE:%.*]] { i32 0, i8 0, i8 undef, i8 0, i32 0, i32 0 }
/*****************************************************************************/
/****************************** PARAMETER ABIS *******************************/
/*****************************************************************************/
SWIFTCALL void indirect_result_1(OUT int *arg0, OUT float *arg1) {}
// CHECK-LABEL: define {{.*}} void @indirect_result_1(ptr noalias noundef sret(ptr) align 4 dereferenceable(4){{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}})
// TODO: maybe this shouldn't suppress sret.
SWIFTCALL int indirect_result_2(OUT int *arg0, OUT float *arg1) { __builtin_unreachable(); }
// CHECK-LABEL: define {{.*}} i32 @indirect_result_2(ptr noalias noundef align 4 dereferenceable(4){{.*}}, ptr noalias noundef align 4 dereferenceable(4){{.*}})
typedef struct { char array[1024]; } struct_reallybig;
SWIFTCALL struct_reallybig indirect_result_3(OUT int *arg0, OUT float *arg1) { __builtin_unreachable(); }
// 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){{.*}})
SWIFTCALL void context_1(CONTEXT void *self) {}
// CHECK-LABEL: define {{.*}} void @context_1(ptr noundef swiftself
SWIFTCALL void context_2(void *arg0, CONTEXT void *self) {}
// CHECK-LABEL: define {{.*}} void @context_2(ptr{{.*}}, ptr noundef swiftself
SWIFTCALL void context_error_1(CONTEXT int *self, ERROR float **error) {}
// CHECK-LABEL: define {{.*}} void @context_error_1(ptr noundef swiftself{{.*}}, ptr noundef swifterror %0)
// CHECK: [[TEMP:%.*]] = alloca ptr, align 8
// CHECK: [[T0:%.*]] = load ptr, ptr [[ERRORARG:%.*]], align 8
// CHECK: store ptr [[T0]], ptr [[TEMP]], align 8
// CHECK: [[T0:%.*]] = load ptr, ptr [[TEMP]], align 8
// CHECK: store ptr [[T0]], ptr [[ERRORARG]], align 8
void test_context_error_1(void) {
int x;
float *error;
context_error_1(&x, &error);
}
// CHECK-LABEL: define dso_local void @test_context_error_1()
// CHECK: [[X:%.*]] = alloca i32, align 4
// CHECK: [[ERROR:%.*]] = alloca ptr, align 8
// CHECK: [[TEMP:%.*]] = alloca swifterror ptr, align 8
// CHECK: [[T0:%.*]] = load ptr, ptr [[ERROR]], align 8
// CHECK: store ptr [[T0]], ptr [[TEMP]], align 8
// CHECK: call [[SWIFTCC:swiftcc]] void @context_error_1(ptr noundef swiftself [[X]], ptr noundef swifterror [[TEMP]])
// CHECK: [[T0:%.*]] = load ptr, ptr [[TEMP]], align 8
// CHECK: store ptr [[T0]], ptr [[ERROR]], align 8
SWIFTCALL void context_error_2(short s, CONTEXT int *self, ERROR float **error) {}
// CHECK-LABEL: define {{.*}} void @context_error_2(i16{{.*}}, ptr noundef swiftself{{.*}}, ptr noundef swifterror %0)
/*****************************************************************************/
/********************************** LOWERING *********************************/
/*****************************************************************************/
typedef float float4 __attribute__((ext_vector_type(4)));
typedef float float8 __attribute__((ext_vector_type(8)));
typedef double double2 __attribute__((ext_vector_type(2)));
typedef double double4 __attribute__((ext_vector_type(4)));
typedef int int3 __attribute__((ext_vector_type(3)));
typedef int int4 __attribute__((ext_vector_type(4)));
typedef int int5 __attribute__((ext_vector_type(5)));
typedef int int8 __attribute__((ext_vector_type(8)));
#define TEST(TYPE) \
SWIFTCALL TYPE return_##TYPE(void) { \
TYPE result = {}; \
return result; \
} \
SWIFTCALL void take_##TYPE(TYPE v) { \
} \
void test_##TYPE(void) { \
take_##TYPE(return_##TYPE()); \
}
/*****************************************************************************/
/*********************************** STRUCTS *********************************/
/*****************************************************************************/
typedef struct {
} struct_empty;
TEST(struct_empty);
// CHECK-LABEL: define {{.*}} @return_struct_empty()
// CHECK: ret void
// CHECK-LABEL: define {{.*}} @take_struct_empty()
// CHECK: ret void
typedef struct {
int x;
char c0;
char c1;
int f0;
int f1;
} struct_1;
TEST(struct_1);
// CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_1() {{.*}}{
// CHECK: [[RET:%.*]] = alloca [[STRUCT1:%.*]], align 4
// CHECK: call void @llvm.memset
// CHECK: [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr %retval, i32 0, i32 0
// CHECK: [[T0:%.*]] = load i64, ptr [[GEP0]], align 4
// CHECK: [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr %retval, i32 0, i32 1
// CHECK: [[T1:%.*]] = load i64, ptr [[GEP1]], align 4
// CHECK: [[R0:%.*]] = insertvalue { i64, i64 } poison, i64 [[T0]], 0
// CHECK: [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
// CHECK: ret { i64, i64 } [[R1]]
// CHECK: }
// CHECK-LABEL: define dso_local swiftcc void @take_struct_1(i64 %0, i64 %1) {{.*}}{
// CHECK: [[V:%.*]] = alloca [[STRUCT1:%.*]], align 4
// CHECK: [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 0
// CHECK: store i64 %0, ptr [[GEP0]], align 4
// CHECK: [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 1
// CHECK: store i64 %1, ptr [[GEP1]], align 4
// CHECK: ret void
// CHECK: }
// CHECK-LABEL: define dso_local void @test_struct_1() {{.*}}{
// CHECK: [[AGG:%.*]] = alloca [[STRUCT1:%.*]], align 4
// CHECK: [[RET:%.*]] = call swiftcc { i64, i64 } @return_struct_1()
// CHECK: [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[E0:%.*]] = extractvalue { i64, i64 } [[RET]], 0
// CHECK: store i64 [[E0]], ptr [[GEP0]], align 4
// CHECK: [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 1
// CHECK: [[E1:%.*]] = extractvalue { i64, i64 } [[RET]], 1
// CHECK: store i64 [[E1]], ptr [[GEP1]], align 4
// CHECK: [[GEP2:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[V0:%.*]] = load i64, ptr [[GEP2]], align 4
// CHECK: [[GEP3:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[AGG]], i32 0, i32 1
// CHECK: [[V1:%.*]] = load i64, ptr [[GEP3]], align 4
// CHECK: call swiftcc void @take_struct_1(i64 [[V0]], i64 [[V1]])
// CHECK: ret void
// CHECK: }
typedef struct {
int x;
char c0;
__attribute__((aligned(2))) char c1;
int f0;
int f1;
} struct_2;
TEST(struct_2);
// CHECK-LABEL: define dso_local swiftcc { i64, i64 } @return_struct_2() {{.*}}{
// CHECK: [[RET:%.*]] = alloca [[STRUCT2_TYPE]], align 4
// CHECK: call void @llvm.memcpy{{.*}}({{.*}}[[RET]], {{.*}}[[STRUCT2_RESULT]]
// CHECK: [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[RET]], i32 0, i32 0
// CHECK: [[T0:%.*]] = load i64, ptr [[GEP0]], align 4
// CHECK: [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[RET]], i32 0, i32 1
// CHECK: [[T1:%.*]] = load i64, ptr [[GEP1]], align 4
// CHECK: [[R0:%.*]] = insertvalue { i64, i64 } poison, i64 [[T0]], 0
// CHECK: [[R1:%.*]] = insertvalue { i64, i64 } [[R0]], i64 [[T1]], 1
// CHECK: ret { i64, i64 } [[R1]]
// CHECK: }
// CHECK-LABEL: define dso_local swiftcc void @take_struct_2(i64 %0, i64 %1) {{.*}}{
// CHECK: [[V:%.*]] = alloca [[STRUCT:%.*]], align 4
// CHECK: [[GEP0:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 0
// CHECK: store i64 %0, ptr [[GEP0]], align 4
// CHECK: [[GEP1:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[V]], i32 0, i32 1
// CHECK: store i64 %1, ptr [[GEP1]], align 4
// CHECK: ret void
// CHECK: }
// CHECK-LABEL: define dso_local void @test_struct_2() {{.*}} {
// CHECK: [[TMP:%.*]] = alloca [[STRUCT2_TYPE]], align 4
// CHECK: [[CALL:%.*]] = call swiftcc { i64, i64 } @return_struct_2()
// CHECK: [[GEP:%.*]] = getelementptr inbounds {{.*}} [[TMP]], i32 0, i32 0
// CHECK: [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 0
// CHECK: store i64 [[T0]], ptr [[GEP]], align 4
// CHECK: [[GEP:%.*]] = getelementptr inbounds {{.*}} [[TMP]], i32 0, i32 1
// CHECK: [[T0:%.*]] = extractvalue { i64, i64 } [[CALL]], 1
// CHECK: store i64 [[T0]], ptr [[GEP]], align 4
// CHECK: [[GEP:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[TMP]], i32 0, i32 0
// CHECK: [[R0:%.*]] = load i64, ptr [[GEP]], align 4
// CHECK: [[GEP:%.*]] = getelementptr inbounds { i64, i64 }, ptr [[TMP]], i32 0, i32 1
// CHECK: [[R1:%.*]] = load i64, ptr [[GEP]], align 4
// CHECK: call swiftcc void @take_struct_2(i64 [[R0]], i64 [[R1]])
// CHECK: ret void
// CHECK: }
// There's no way to put a field randomly in the middle of an otherwise
// empty storage unit in C, so that case has to be tested in C++, which
// can use empty structs to introduce arbitrary padding. (In C, they end up
// with size 0 and so don't affect layout.)
// Misaligned data rule.
typedef struct {
char c0;
__attribute__((packed)) float f;
} struct_misaligned_1;
TEST(struct_misaligned_1)
// CHECK-LABEL: define dso_local swiftcc i64 @return_struct_misaligned_1()
// CHECK: [[RET:%.*]] = alloca [[STRUCT:%.*]], align 1
// CHECK: call void @llvm.memset{{.*}}(ptr align 1 [[RET]], i8 0, i64 5
// CHECK: [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[RET]], i32 0, i32 0
// CHECK: [[R0:%.*]] = load i64, ptr [[GEP]], align 1
// CHECK: ret i64 [[R0]]
// CHECK:}
// CHECK-LABEL: define dso_local swiftcc void @take_struct_misaligned_1(i64 %0) {{.*}}{
// CHECK: [[V:%.*]] = alloca [[STRUCT:%.*]], align 1
// CHECK: [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[V]], i32 0, i32 0
// CHECK: store i64 %0, ptr [[GEP]], align 1
// CHECK: ret void
// CHECK: }
// CHECK: define dso_local void @test_struct_misaligned_1() {{.*}}{
// CHECK: [[AGG:%.*]] = alloca [[STRUCT:%.*]], align 1
// CHECK: [[CALL:%.*]] = call swiftcc i64 @return_struct_misaligned_1()
// CHECK: [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
// CHECK: store i64 [[CALL]], ptr [[T1]], align 1
// CHECK: [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[P:%.*]] = load i64, ptr [[T1]], align 1
// CHECK: call swiftcc void @take_struct_misaligned_1(i64 [[P]])
// CHECK: ret void
// CHECK: }
// Too many scalars.
typedef struct {
long long x[5];
} struct_big_1;
TEST(struct_big_1)
// CHECK-LABEL: define {{.*}} void @return_struct_big_1({{.*}} dead_on_unwind noalias writable sret
// Should not be byval.
// CHECK-LABEL: define {{.*}} void @take_struct_big_1(ptr noundef{{( %.*)?}})
/*****************************************************************************/
/********************************* TYPE MERGING ******************************/
/*****************************************************************************/
typedef union {
float f;
double d;
} union_het_fp;
TEST(union_het_fp)
// CHECK-LABEL: define dso_local swiftcc i64 @return_union_het_fp()
// CHECK: [[RET:%.*]] = alloca [[UNION:%.*]], align 8
// CHECK: call void @llvm.memcpy{{.*}}(ptr align {{[0-9]+}} [[RET]]
// CHECK: [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[RET]], i32 0, i32 0
// CHECK: [[R0:%.*]] = load i64, ptr [[GEP]], align 8
// CHECK: ret i64 [[R0]]
// CHECK-LABEL: define dso_local swiftcc void @take_union_het_fp(i64 %0) {{.*}}{
// CHECK: [[V:%.*]] = alloca [[UNION:%.*]], align 8
// CHECK: [[GEP:%.*]] = getelementptr inbounds { i64 }, ptr [[V]], i32 0, i32 0
// CHECK: store i64 %0, ptr [[GEP]], align 8
// CHECK: ret void
// CHECK: }
// CHECK-LABEL: define dso_local void @test_union_het_fp() {{.*}}{
// CHECK: [[AGG:%.*]] = alloca [[UNION:%.*]], align 8
// CHECK: [[CALL:%.*]] = call swiftcc i64 @return_union_het_fp()
// CHECK: [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
// CHECK: store i64 [[CALL]], ptr [[T1]], align 8
// CHECK: [[T1:%.*]] = getelementptr inbounds { i64 }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[V0:%.*]] = load i64, ptr [[T1]], align 8
// CHECK: call swiftcc void @take_union_het_fp(i64 [[V0]])
// CHECK: ret void
// CHECK: }
typedef union {
float f1;
float f2;
} union_hom_fp;
TEST(union_hom_fp)
// CHECK-LABEL: define dso_local void @test_union_hom_fp()
// CHECK: [[TMP:%.*]] = alloca [[REC:%.*]], align 4
// CHECK: [[CALL:%.*]] = call [[SWIFTCC]] float @return_union_hom_fp()
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG:{ float }]], ptr [[TMP]], i32 0, i32 0
// CHECK: store float [[CALL]], ptr [[T0]], align 4
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP]], i32 0, i32 0
// CHECK: [[FIRST:%.*]] = load float, ptr [[T0]], align 4
// CHECK: call [[SWIFTCC]] void @take_union_hom_fp(float [[FIRST]])
// CHECK: ret void
typedef union {
float f1;
float4 fv2;
} union_hom_fp_partial;
TEST(union_hom_fp_partial)
// CHECK: define dso_local void @test_union_hom_fp_partial()
// CHECK: [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
// CHECK: [[CALL:%.*]] = call swiftcc { float, float, float, float } @return_union_hom_fp_partial()
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 0
// CHECK: store float [[T1]], ptr [[T0]], align 16
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 1
// CHECK: [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 1
// CHECK: store float [[T1]], ptr [[T0]], align 4
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 2
// CHECK: [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 2
// CHECK: store float [[T1]], ptr [[T0]], align 8
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 3
// CHECK: [[T1:%.*]] = extractvalue { float, float, float, float } [[CALL]], 3
// CHECK: store float [[T1]], ptr [[T0]], align 4
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[V0:%.*]] = load float, ptr [[T0]], align 16
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 1
// CHECK: [[V1:%.*]] = load float, ptr [[T0]], align 4
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 2
// CHECK: [[V2:%.*]] = load float, ptr [[T0]], align 8
// CHECK: [[T0:%.*]] = getelementptr inbounds { float, float, float, float }, ptr [[AGG]], i32 0, i32 3
// CHECK: [[V3:%.*]] = load float, ptr [[T0]], align 4
// CHECK: call swiftcc void @take_union_hom_fp_partial(float [[V0]], float [[V1]], float [[V2]], float [[V3]])
// CHECK: ret void
// CHECK: }
typedef union {
struct { int x, y; } f1;
float4 fv2;
} union_het_fpv_partial;
TEST(union_het_fpv_partial)
// CHECK-LABEL: define dso_local void @test_union_het_fpv_partial()
// CHECK: [[AGG:%.*]] = alloca [[UNION:%.*]], align 16
// CHECK: [[CALL:%.*]] = call swiftcc { i64, float, float } @return_union_het_fpv_partial()
// CHECK: [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 0
// CHECK: store i64 [[T1]], ptr [[T0]], align 16
// CHECK: [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 1
// CHECK: [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 1
// CHECK: store float [[T1]], ptr [[T0]], align 8
// CHECK: [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 2
// CHECK: [[T1:%.*]] = extractvalue { i64, float, float } [[CALL]], 2
// CHECK: store float [[T1]], ptr [[T0]], align 4
// CHECK: [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 0
// CHECK: [[V0:%.*]] = load i64, ptr [[T0]], align 16
// CHECK: [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 1
// CHECK: [[V1:%.*]] = load float, ptr [[T0]], align 8
// CHECK: [[T0:%.*]] = getelementptr inbounds { i64, float, float }, ptr [[AGG]], i32 0, i32 2
// CHECK: [[V2:%.*]] = load float, ptr [[T0]], align 4
// CHECK: call swiftcc void @take_union_het_fpv_partial(i64 [[V0]], float [[V1]], float [[V2]])
// CHECK: ret void
// CHECK: }
/*****************************************************************************/
/****************************** VECTOR LEGALIZATION **************************/
/*****************************************************************************/
TEST(int4)
// CHECK-LABEL: define {{.*}} <4 x i32> @return_int4()
// CHECK-LABEL: define {{.*}} @take_int4(<4 x i32>
TEST(int8)
// CHECK-LABEL: define {{.*}} @return_int8()
// CHECK: [[RET:%.*]] = alloca [[REC:<8 x i32>]], align 32
// CHECK: [[VAR:%.*]] = alloca [[REC]], align
// CHECK: store
// CHECK: load
// CHECK: store
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG:{ <4 x i32>, <4 x i32> }]], ptr [[RET]], i32 0, i32 0
// CHECK: [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[RET]], i32 0, i32 1
// CHECK: [[SECOND:%.*]] = load <4 x i32>, ptr [[T0]], align
// CHECK: [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, <4 x i32> }]] poison, <4 x i32> [[FIRST]], 0
// CHECK: [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], <4 x i32> [[SECOND]], 1
// CHECK: ret [[UAGG]] [[T1]]
// CHECK-LABEL: define {{.*}} @take_int8(<4 x i32> noundef %0, <4 x i32> noundef %1)
// CHECK: [[V:%.*]] = alloca [[REC]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 0
// CHECK: store <4 x i32> %0, ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 1
// CHECK: store <4 x i32> %1, ptr [[T0]], align
// CHECK: ret void
// CHECK-LABEL: define dso_local void @test_int8()
// CHECK: [[TMP1:%.*]] = alloca [[REC]], align
// CHECK: [[TMP2:%.*]] = alloca [[REC]], align
// CHECK: [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int8()
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 0
// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
// CHECK: store <4 x i32> [[T1]], ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 1
// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
// CHECK: store <4 x i32> [[T1]], ptr [[T0]], align
// CHECK: [[V:%.*]] = load [[REC]], ptr [[TMP1]], align
// CHECK: store [[REC]] [[V]], ptr [[TMP2]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 0
// CHECK: [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 1
// CHECK: [[SECOND:%.*]] = load <4 x i32>, ptr [[T0]], align
// CHECK: call [[SWIFTCC]] void @take_int8(<4 x i32> noundef [[FIRST]], <4 x i32> noundef [[SECOND]])
// CHECK: ret void
TEST(int5)
// CHECK-LABEL: define {{.*}} @return_int5()
// CHECK: [[RET:%.*]] = alloca [[REC:<5 x i32>]], align 32
// CHECK: [[VAR:%.*]] = alloca [[REC]], align
// CHECK: store
// CHECK: load
// CHECK: store
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG:{ <4 x i32>, i32 }]], ptr [[RET]], i32 0, i32 0
// CHECK: [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[RET]], i32 0, i32 1
// CHECK: [[SECOND:%.*]] = load i32, ptr [[T0]], align
// CHECK: [[T0:%.*]] = insertvalue [[UAGG:{ <4 x i32>, i32 }]] poison, <4 x i32> [[FIRST]], 0
// CHECK: [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], i32 [[SECOND]], 1
// CHECK: ret [[UAGG]] [[T1]]
// CHECK-LABEL: define {{.*}} @take_int5(<4 x i32> %0, i32 %1)
// CHECK: [[V:%.*]] = alloca [[REC]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 0
// CHECK: store <4 x i32> %0, ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[V]], i32 0, i32 1
// CHECK: store i32 %1, ptr [[T0]], align
// CHECK: ret void
// CHECK-LABEL: define dso_local void @test_int5()
// CHECK: [[TMP1:%.*]] = alloca [[REC]], align
// CHECK: [[TMP2:%.*]] = alloca [[REC]], align
// CHECK: [[CALL:%.*]] = call [[SWIFTCC]] [[UAGG]] @return_int5()
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 0
// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0
// CHECK: store <4 x i32> [[T1]], ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP1]], i32 0, i32 1
// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1
// CHECK: store i32 [[T1]], ptr [[T0]], align
// CHECK: [[V:%.*]] = load [[REC]], ptr [[TMP1]], align
// CHECK: store [[REC]] [[V]], ptr [[TMP2]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 0
// CHECK: [[FIRST:%.*]] = load <4 x i32>, ptr [[T0]], align
// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], ptr [[TMP2]], i32 0, i32 1
// CHECK: [[SECOND:%.*]] = load i32, ptr [[T0]], align
// CHECK: call [[SWIFTCC]] void @take_int5(<4 x i32> [[FIRST]], i32 [[SECOND]])
// CHECK: ret void
typedef struct {
int x;
int3 v __attribute__((packed));
} misaligned_int3;
TEST(misaligned_int3)
// CHECK-LABEL: define dso_local swiftcc void @take_misaligned_int3(i64 %0, i64 %1)
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