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
9 typedef long long int64_t;
10 typedef unsigned int uint32_t;
11
12 /* This is not a homogenous aggregate - fundamental types are different */
13 typedef union {
14 float f[4];
15 uint32_t i[4];
16 } union_with_first_floats;
17 union_with_first_floats g_u_f;
18
19 extern void takes_union_with_first_floats(union_with_first_floats a);
20 extern union_with_first_floats returns_union_with_first_floats(void);
21
test_union_with_first_floats(void)22 void 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
test_return_union_with_first_floats(void)27 void 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 */
33 typedef union {
34 uint32_t i[4];
35 float f[4];
36 } union_with_non_first_floats;
37 union_with_non_first_floats g_u_nf_f;
38
39 extern void takes_union_with_non_first_floats(union_with_non_first_floats a);
40 extern union_with_non_first_floats returns_union_with_non_first_floats(void);
41
test_union_with_non_first_floats(void)42 void 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
test_return_union_with_non_first_floats(void)47 void 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 */
53 typedef struct {
54 float a;
55 union_with_first_floats b;
56 } struct_with_union_with_first_floats;
57 struct_with_union_with_first_floats g_s_f;
58
59 extern void takes_struct_with_union_with_first_floats(struct_with_union_with_first_floats a);
60 extern struct_with_union_with_first_floats returns_struct_with_union_with_first_floats(void);
61
test_struct_with_union_with_first_floats(void)62 void 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
test_return_struct_with_union_with_first_floats(void)67 void 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 */
73 typedef struct {
74 float a;
75 union_with_non_first_floats b;
76 } struct_with_union_with_non_first_floats;
77 struct_with_union_with_non_first_floats g_s_nf_f;
78
79 extern void takes_struct_with_union_with_non_first_floats(struct_with_union_with_non_first_floats a);
80 extern struct_with_union_with_non_first_floats returns_struct_with_union_with_non_first_floats(void);
81
test_struct_with_union_with_non_first_floats(void)82 void 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
test_return_struct_with_union_with_non_first_floats(void)87 void 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 */
93 extern void takes_array_of_floats(float a[4]);
test_array_of_floats(void)94 void 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 */
101 typedef struct {
102 float x, y, z, w;
103 } struct_with_fundamental_elems;
104 struct_with_fundamental_elems g_s;
105
106 extern void takes_struct_with_fundamental_elems(struct_with_fundamental_elems a);
107 extern struct_with_fundamental_elems returns_struct_with_fundamental_elems(void);
108
test_struct_with_fundamental_elems(void)109 void 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
test_return_struct_with_fundamental_elems(void)115 void 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 */
122 typedef struct {
123 float xyzw[4];
124 } struct_with_array;
125 struct_with_array g_s_a;
126
127 extern void takes_struct_with_array(struct_with_array a);
128 extern struct_with_array returns_struct_with_array(void);
129
test_struct_with_array(void)130 void 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
test_return_struct_with_array(void)136 void 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 */
143 typedef union {
144 struct_with_fundamental_elems xyzw;
145 float a[3];
146 } union_with_struct_with_fundamental_elems;
147 union_with_struct_with_fundamental_elems g_u_s_fe;
148
149 extern void takes_union_with_struct_with_fundamental_elems(union_with_struct_with_fundamental_elems a);
150 extern union_with_struct_with_fundamental_elems returns_union_with_struct_with_fundamental_elems(void);
151
test_union_with_struct_with_fundamental_elems(void)152 void 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
test_return_union_with_struct_with_fundamental_elems(void)158 void 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.
166 typedef struct {
167 double x;
168 double a2;
169 double a3;
170 double a4;
171 } struct_of_four_doubles;
172 extern void takes_struct_of_four_doubles(double a, struct_of_four_doubles b, struct_of_four_doubles c, double d);
173 struct_of_four_doubles g_s4d;
174
test_struct_of_four_doubles(void)175 void 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
183 extern void takes_struct_of_four_doubles_variadic(double a, struct_of_four_doubles b, struct_of_four_doubles c, double d, ...);
184
test_struct_of_four_doubles_variadic(void)185 void 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
191 extern void takes_struct_with_backfill(float f1, double a, float f2, struct_of_four_doubles b, struct_of_four_doubles c, double d);
test_struct_with_backfill(void)192 void 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
198 typedef __attribute__(( ext_vector_type(8) )) char __char8;
199 typedef __attribute__(( ext_vector_type(4) )) short __short4;
200 typedef struct {
201 __char8 a1;
202 __short4 a2;
203 __char8 a3;
204 __short4 a4;
205 } struct_of_vecs;
206 extern void takes_struct_of_vecs(double a, struct_of_vecs b, struct_of_vecs c, double d);
207 struct_of_vecs g_vec;
208
test_struct_of_vecs(void)209 void 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
217 typedef struct {
218 double a;
219 long double b;
220 } struct_of_double_and_long_double;
221 struct_of_double_and_long_double g_dld;
222
test_struct_of_double_and_long_double(void)223 struct_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