1// RUN: %clang_cc1 -triple armv7-apple-darwin9 -emit-llvm -o - %s -Wno-return-type-c-linkage | FileCheck %s 2 3// This isn't really testing anything ARM-specific; it's just a convenient 4// 32-bit platform. 5 6#define SWIFTCALL __attribute__((swiftcall)) 7#define OUT __attribute__((swift_indirect_result)) 8#define ERROR __attribute__((swift_error_result)) 9#define CONTEXT __attribute__((swift_context)) 10 11/*****************************************************************************/ 12/********************************** LOWERING *********************************/ 13/*****************************************************************************/ 14 15#define TEST(TYPE) \ 16 extern "C" SWIFTCALL TYPE return_##TYPE(void) { \ 17 TYPE result = {}; \ 18 return result; \ 19 } \ 20 extern "C" SWIFTCALL void take_##TYPE(TYPE v) { \ 21 } \ 22 extern "C" void test_##TYPE() { \ 23 take_##TYPE(return_##TYPE()); \ 24 } 25 26/*****************************************************************************/ 27/*********************************** STRUCTS *********************************/ 28/*****************************************************************************/ 29 30typedef struct { 31} struct_empty; 32TEST(struct_empty); 33// CHECK-LABEL: define {{.*}} @return_struct_empty() 34// CHECK: ret void 35// CHECK-LABEL: define {{.*}} @take_struct_empty() 36// CHECK: ret void 37 38// This is only properly testable in C++ because it relies on empty structs 39// actually taking up space in a structure without requiring any extra data 40// to be passed. 41typedef struct { 42 int x; 43 struct_empty padding[2]; 44 char c1; 45 float f0; 46 float f1; 47} struct_1; 48TEST(struct_1); 49// CHECK-LABEL: define {{.*}} @return_struct_1() 50// CHECK: [[RET:%.*]] = alloca [[REC:%.*]], align 4 51// CHECK: @llvm.memset 52// CHECK: [[CAST_TMP:%.*]] = bitcast [[REC]]* [[RET]] to [[AGG:{ i32, \[2 x i8\], i8, \[1 x i8\], float, float }]]* 53// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0 54// CHECK: [[FIRST:%.*]] = load i32, i32* [[T0]], align 4 55// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 2 56// CHECK: [[SECOND:%.*]] = load i8, i8* [[T0]], align 2 57// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 4 58// CHECK: [[THIRD:%.*]] = load float, float* [[T0]], align 4 59// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 5 60// CHECK: [[FOURTH:%.*]] = load float, float* [[T0]], align 4 61// CHECK: [[T0:%.*]] = insertvalue [[UAGG:{ i32, i8, float, float }]] undef, i32 [[FIRST]], 0 62// CHECK: [[T1:%.*]] = insertvalue [[UAGG]] [[T0]], i8 [[SECOND]], 1 63// CHECK: [[T2:%.*]] = insertvalue [[UAGG]] [[T1]], float [[THIRD]], 2 64// CHECK: [[T3:%.*]] = insertvalue [[UAGG]] [[T2]], float [[FOURTH]], 3 65// CHECK: ret [[UAGG]] [[T3]] 66// CHECK-LABEL: define {{.*}} @take_struct_1(i32, i8, float, float) 67// CHECK: [[V:%.*]] = alloca [[REC]], align 4 68// CHECK: [[CAST_TMP:%.*]] = bitcast [[REC]]* [[V]] to [[AGG]]* 69// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0 70// CHECK: store i32 %0, i32* [[T0]], align 4 71// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 2 72// CHECK: store i8 %1, i8* [[T0]], align 2 73// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 4 74// CHECK: store float %2, float* [[T0]], align 4 75// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 5 76// CHECK: store float %3, float* [[T0]], align 4 77// CHECK: ret void 78// CHECK-LABEL: define void @test_struct_1() 79// CHECK: [[TMP:%.*]] = alloca [[REC]], align 4 80// CHECK: [[CALL:%.*]] = call [[SWIFTCC:swiftcc]] [[UAGG]] @return_struct_1() 81// CHECK: [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP]] to [[AGG]]* 82// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0 83// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 0 84// CHECK: store i32 [[T1]], i32* [[T0]], align 4 85// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 2 86// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 1 87// CHECK: store i8 [[T1]], i8* [[T0]], align 2 88// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 4 89// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 2 90// CHECK: store float [[T1]], float* [[T0]], align 4 91// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 5 92// CHECK: [[T1:%.*]] = extractvalue [[UAGG]] [[CALL]], 3 93// CHECK: store float [[T1]], float* [[T0]], align 4 94// CHECK: [[CAST_TMP:%.*]] = bitcast [[REC]]* [[TMP]] to [[AGG]]* 95// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 0 96// CHECK: [[FIRST:%.*]] = load i32, i32* [[T0]], align 4 97// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 2 98// CHECK: [[SECOND:%.*]] = load i8, i8* [[T0]], align 2 99// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 4 100// CHECK: [[THIRD:%.*]] = load float, float* [[T0]], align 4 101// CHECK: [[T0:%.*]] = getelementptr inbounds [[AGG]], [[AGG]]* [[CAST_TMP]], i32 0, i32 5 102// CHECK: [[FOURTH:%.*]] = load float, float* [[T0]], align 4 103// CHECK: call [[SWIFTCC]] void @take_struct_1(i32 [[FIRST]], i8 [[SECOND]], float [[THIRD]], float [[FOURTH]]) 104// CHECK: ret void 105 106struct struct_indirect_1 { 107 int x; 108 ~struct_indirect_1(); 109}; 110TEST(struct_indirect_1) 111 112// CHECK-LABEL: define {{.*}} void @return_struct_indirect_1({{.*}} noalias sret 113 114// Should not be byval. 115// CHECK-LABEL: define {{.*}} void @take_struct_indirect_1({{.*}}*{{( %.*)?}}) 116