1// REQUIRES: arm-registered-target 2// RUN: %clang_cc1 -triple armv7---eabi -target-abi aapcs -mfloat-abi hard -emit-llvm %s -o - | FileCheck %s 3 4// RUN: %clang_cc1 -triple arm64-apple-darwin9 -target-abi darwinpcs \ 5// RUN: -ffreestanding -emit-llvm -w -o - %s | FileCheck -check-prefix=CHECK64 %s 6 7// RUN: %clang_cc1 -triple arm64-linux-gnu -ffreestanding -emit-llvm -w -o - %s \ 8// RUN: | FileCheck --check-prefix=CHECK64 %s 9typedef long long int64_t; 10typedef unsigned int uint32_t; 11 12/* This is not a homogenous aggregate - fundamental types are different */ 13typedef union { 14 float f[4]; 15 uint32_t i[4]; 16} union_with_first_floats; 17union_with_first_floats g_u_f; 18 19extern void takes_union_with_first_floats(union_with_first_floats a); 20extern union_with_first_floats returns_union_with_first_floats(void); 21 22void test_union_with_first_floats(void) { 23 takes_union_with_first_floats(g_u_f); 24} 25// CHECK: declare arm_aapcs_vfpcc void @takes_union_with_first_floats([4 x i32]) 26 27void test_return_union_with_first_floats(void) { 28 g_u_f = returns_union_with_first_floats(); 29} 30// CHECK: declare arm_aapcs_vfpcc void @returns_union_with_first_floats(%union.union_with_first_floats* sret) 31 32/* This is not a homogenous aggregate - fundamental types are different */ 33typedef union { 34 uint32_t i[4]; 35 float f[4]; 36} union_with_non_first_floats; 37union_with_non_first_floats g_u_nf_f; 38 39extern void takes_union_with_non_first_floats(union_with_non_first_floats a); 40extern union_with_non_first_floats returns_union_with_non_first_floats(void); 41 42void test_union_with_non_first_floats(void) { 43 takes_union_with_non_first_floats(g_u_nf_f); 44} 45// CHECK: declare arm_aapcs_vfpcc void @takes_union_with_non_first_floats([4 x i32]) 46 47void test_return_union_with_non_first_floats(void) { 48 g_u_nf_f = returns_union_with_non_first_floats(); 49} 50// CHECK: declare arm_aapcs_vfpcc void @returns_union_with_non_first_floats(%union.union_with_non_first_floats* sret) 51 52/* This is not a homogenous aggregate - fundamental types are different */ 53typedef struct { 54 float a; 55 union_with_first_floats b; 56} struct_with_union_with_first_floats; 57struct_with_union_with_first_floats g_s_f; 58 59extern void takes_struct_with_union_with_first_floats(struct_with_union_with_first_floats a); 60extern struct_with_union_with_first_floats returns_struct_with_union_with_first_floats(void); 61 62void test_struct_with_union_with_first_floats(void) { 63 takes_struct_with_union_with_first_floats(g_s_f); 64} 65// CHECK: declare arm_aapcs_vfpcc void @takes_struct_with_union_with_first_floats([5 x i32]) 66 67void test_return_struct_with_union_with_first_floats(void) { 68 g_s_f = returns_struct_with_union_with_first_floats(); 69} 70// CHECK: declare arm_aapcs_vfpcc void @returns_struct_with_union_with_first_floats(%struct.struct_with_union_with_first_floats* sret) 71 72/* This is not a homogenous aggregate - fundamental types are different */ 73typedef struct { 74 float a; 75 union_with_non_first_floats b; 76} struct_with_union_with_non_first_floats; 77struct_with_union_with_non_first_floats g_s_nf_f; 78 79extern void takes_struct_with_union_with_non_first_floats(struct_with_union_with_non_first_floats a); 80extern struct_with_union_with_non_first_floats returns_struct_with_union_with_non_first_floats(void); 81 82void test_struct_with_union_with_non_first_floats(void) { 83 takes_struct_with_union_with_non_first_floats(g_s_nf_f); 84} 85// CHECK: declare arm_aapcs_vfpcc void @takes_struct_with_union_with_non_first_floats([5 x i32]) 86 87void test_return_struct_with_union_with_non_first_floats(void) { 88 g_s_nf_f = returns_struct_with_union_with_non_first_floats(); 89} 90// CHECK: declare arm_aapcs_vfpcc void @returns_struct_with_union_with_non_first_floats(%struct.struct_with_union_with_non_first_floats* sret) 91 92/* Plain array is not a homogenous aggregate */ 93extern void takes_array_of_floats(float a[4]); 94void test_array_of_floats(void) { 95 float a[4] = {1.0, 2.0, 3.0, 4.0}; 96 takes_array_of_floats(a); 97} 98// CHECK: declare arm_aapcs_vfpcc void @takes_array_of_floats(float*) 99 100/* Struct-type homogenous aggregate */ 101typedef struct { 102 float x, y, z, w; 103} struct_with_fundamental_elems; 104struct_with_fundamental_elems g_s; 105 106extern void takes_struct_with_fundamental_elems(struct_with_fundamental_elems a); 107extern struct_with_fundamental_elems returns_struct_with_fundamental_elems(void); 108 109void test_struct_with_fundamental_elems(void) { 110 takes_struct_with_fundamental_elems(g_s); 111// CHECK: call arm_aapcs_vfpcc void @takes_struct_with_fundamental_elems(%struct.struct_with_fundamental_elems {{.*}}) 112} 113// CHECK: declare arm_aapcs_vfpcc void @takes_struct_with_fundamental_elems(%struct.struct_with_fundamental_elems) 114 115void test_return_struct_with_fundamental_elems(void) { 116 g_s = returns_struct_with_fundamental_elems(); 117// CHECK: call arm_aapcs_vfpcc %struct.struct_with_fundamental_elems @returns_struct_with_fundamental_elems() 118} 119// CHECK: declare arm_aapcs_vfpcc %struct.struct_with_fundamental_elems @returns_struct_with_fundamental_elems() 120 121/* Array-type homogenous aggregate */ 122typedef struct { 123 float xyzw[4]; 124} struct_with_array; 125struct_with_array g_s_a; 126 127extern void takes_struct_with_array(struct_with_array a); 128extern struct_with_array returns_struct_with_array(void); 129 130void test_struct_with_array(void) { 131 takes_struct_with_array(g_s_a); 132// CHECK: call arm_aapcs_vfpcc void @takes_struct_with_array(%struct.struct_with_array {{.*}}) 133} 134// CHECK: declare arm_aapcs_vfpcc void @takes_struct_with_array(%struct.struct_with_array) 135 136void test_return_struct_with_array(void) { 137 g_s_a = returns_struct_with_array(); 138// CHECK: call arm_aapcs_vfpcc %struct.struct_with_array @returns_struct_with_array() 139} 140// CHECK: declare arm_aapcs_vfpcc %struct.struct_with_array @returns_struct_with_array() 141 142/* This union is a homogenous aggregate. Check that it's passed properly */ 143typedef union { 144 struct_with_fundamental_elems xyzw; 145 float a[3]; 146} union_with_struct_with_fundamental_elems; 147union_with_struct_with_fundamental_elems g_u_s_fe; 148 149extern void takes_union_with_struct_with_fundamental_elems(union_with_struct_with_fundamental_elems a); 150extern union_with_struct_with_fundamental_elems returns_union_with_struct_with_fundamental_elems(void); 151 152void test_union_with_struct_with_fundamental_elems(void) { 153 takes_union_with_struct_with_fundamental_elems(g_u_s_fe); 154// CHECK: call arm_aapcs_vfpcc void @takes_union_with_struct_with_fundamental_elems(%union.union_with_struct_with_fundamental_elems {{.*}}) 155} 156// CHECK: declare arm_aapcs_vfpcc void @takes_union_with_struct_with_fundamental_elems(%union.union_with_struct_with_fundamental_elems) 157 158void test_return_union_with_struct_with_fundamental_elems(void) { 159 g_u_s_fe = returns_union_with_struct_with_fundamental_elems(); 160// CHECK: call arm_aapcs_vfpcc %union.union_with_struct_with_fundamental_elems @returns_union_with_struct_with_fundamental_elems() 161} 162// CHECK: declare arm_aapcs_vfpcc %union.union_with_struct_with_fundamental_elems @returns_union_with_struct_with_fundamental_elems() 163 164// Make sure HAs that can be partially fit into VFP registers will be allocated 165// on stack and that later VFP candidates will go on stack as well. 166typedef struct { 167 double x; 168 double a2; 169 double a3; 170 double a4; 171} struct_of_four_doubles; 172extern void takes_struct_of_four_doubles(double a, struct_of_four_doubles b, struct_of_four_doubles c, double d); 173struct_of_four_doubles g_s4d; 174 175void test_struct_of_four_doubles(void) { 176// CHECK: test_struct_of_four_doubles 177// CHECK: call arm_aapcs_vfpcc void @takes_struct_of_four_doubles(double {{.*}}, %struct.struct_of_four_doubles {{.*}}, %struct.struct_of_four_doubles {{.*}}, double {{.*}}) 178// CHECK64: test_struct_of_four_doubles 179// CHECK64: call void @takes_struct_of_four_doubles(double {{.*}}, [4 x double] {{.*}}, [4 x double] {{.*}}, double {{.*}}) 180 takes_struct_of_four_doubles(3.0, g_s4d, g_s4d, 4.0); 181} 182 183extern void takes_struct_of_four_doubles_variadic(double a, struct_of_four_doubles b, struct_of_four_doubles c, double d, ...); 184 185void test_struct_of_four_doubles_variadic(void) { 186// CHECK: test_struct_of_four_doubles_variadic 187// CHECK: call arm_aapcs_vfpcc void (double, [4 x i64], [4 x i64], double, ...) @takes_struct_of_four_doubles_variadic(double {{.*}}, [4 x i64] {{.*}}, [4 x i64] {{.*}}, double {{.*}}) 188 takes_struct_of_four_doubles_variadic(3.0, g_s4d, g_s4d, 4.0); 189} 190 191extern void takes_struct_with_backfill(float f1, double a, float f2, struct_of_four_doubles b, struct_of_four_doubles c, double d); 192void test_struct_with_backfill(void) { 193// CHECK: test_struct_with_backfill 194// CHECK: call arm_aapcs_vfpcc void @takes_struct_with_backfill(float {{.*}}, double {{.*}}, float {{.*}}, %struct.struct_of_four_doubles {{.*}}, %struct.struct_of_four_doubles {{.*}}, double {{.*}}) 195 takes_struct_with_backfill(3.0, 3.1, 3.2, g_s4d, g_s4d, 4.0); 196} 197 198typedef __attribute__(( ext_vector_type(8) )) char __char8; 199typedef __attribute__(( ext_vector_type(4) )) short __short4; 200typedef struct { 201 __char8 a1; 202 __short4 a2; 203 __char8 a3; 204 __short4 a4; 205} struct_of_vecs; 206extern void takes_struct_of_vecs(double a, struct_of_vecs b, struct_of_vecs c, double d); 207struct_of_vecs g_vec; 208 209void test_struct_of_vecs(void) { 210// CHECK: test_struct_of_vecs 211// CHECK: call arm_aapcs_vfpcc void @takes_struct_of_vecs(double {{.*}}, %struct.struct_of_vecs {{.*}}, %struct.struct_of_vecs {{.*}}, double {{.*}}) 212// CHECK64: test_struct_of_vecs 213// CHECK64: call void @takes_struct_of_vecs(double {{.*}}, [4 x <8 x i8>] {{.*}}, [4 x <8 x i8>] {{.*}}, double {{.*}}) 214 takes_struct_of_vecs(3.0, g_vec, g_vec, 4.0); 215} 216 217typedef struct { 218 double a; 219 long double b; 220} struct_of_double_and_long_double; 221struct_of_double_and_long_double g_dld; 222 223struct_of_double_and_long_double test_struct_of_double_and_long_double(void) { 224 return g_dld; 225} 226// CHECK: define arm_aapcs_vfpcc %struct.struct_of_double_and_long_double @test_struct_of_double_and_long_double() 227 228// FIXME: Tests necessary: 229// - Vectors 230// - C++ stuff 231