1 // RUN: %clang_cc1 -w -fblocks -triple i386-apple-darwin9 -target-cpu yonah -emit-llvm -o - %s | FileCheck %s 2 3 // CHECK-LABEL: define signext i8 @f0() 4 char f0(void) { 5 return 0; 6 } 7 8 // CHECK-LABEL: define signext i16 @f1() 9 short f1(void) { 10 return 0; 11 } 12 13 // CHECK-LABEL: define i32 @f2() 14 int f2(void) { 15 return 0; 16 } 17 18 // CHECK-LABEL: define float @f3() 19 float f3(void) { 20 return 0; 21 } 22 23 // CHECK-LABEL: define double @f4() 24 double f4(void) { 25 return 0; 26 } 27 28 // CHECK-LABEL: define x86_fp80 @f5() 29 long double f5(void) { 30 return 0; 31 } 32 33 // CHECK-LABEL: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4) 34 void f6(char a0, short a1, int a2, long long a3, void *a4) {} 35 36 // CHECK-LABEL: define void @f7(i32 %a0) 37 typedef enum { A, B, C } e7; 38 void f7(e7 a0) {} 39 40 // CHECK-LABEL: define i64 @f8_1() 41 // CHECK-LABEL: define void @f8_2(i32 %a0.0, i32 %a0.1) 42 struct s8 { 43 int a; 44 int b; 45 }; 46 struct s8 f8_1(void) { while (1) {} } 47 void f8_2(struct s8 a0) {} 48 49 // This should be passed just as s8. 50 51 // CHECK-LABEL: define i64 @f9_1() 52 53 // FIXME: llvm-gcc expands this, this may have some value for the 54 // backend in terms of optimization but doesn't change the ABI. 55 // CHECK-LABEL: define void @f9_2(%struct.s9* byval align 4 %a0) 56 struct s9 { 57 int a : 17; 58 int b; 59 }; 60 struct s9 f9_1(void) { while (1) {} } 61 void f9_2(struct s9 a0) {} 62 63 // Return of small structures and unions 64 65 // CHECK: float @f10() 66 struct s10 { 67 union { }; 68 float f; 69 } f10(void) { while (1) {} } 70 71 // Small vectors and 1 x {i64,double} are returned in registers 72 73 // CHECK: i32 @f11() 74 // CHECK: void @f12(<2 x i32>* noalias sret %agg.result) 75 // CHECK: i64 @f13() 76 // CHECK: i64 @f14() 77 // CHECK: <2 x i64> @f15() 78 // CHECK: <2 x i64> @f16() 79 typedef short T11 __attribute__ ((vector_size (4))); 80 T11 f11(void) { while (1) {} } 81 typedef int T12 __attribute__ ((vector_size (8))); 82 T12 f12(void) { while (1) {} } 83 typedef long long T13 __attribute__ ((vector_size (8))); 84 T13 f13(void) { while (1) {} } 85 typedef double T14 __attribute__ ((vector_size (8))); 86 T14 f14(void) { while (1) {} } 87 typedef long long T15 __attribute__ ((vector_size (16))); 88 T15 f15(void) { while (1) {} } 89 typedef double T16 __attribute__ ((vector_size (16))); 90 T16 f16(void) { while (1) {} } 91 92 // And when the single element in a struct (but not for 64 and 93 // 128-bits). 94 95 // CHECK: i32 @f17() 96 // CHECK: void @f18(%{{.*}}* noalias sret %agg.result) 97 // CHECK: void @f19(%{{.*}}* noalias sret %agg.result) 98 // CHECK: void @f20(%{{.*}}* noalias sret %agg.result) 99 // CHECK: void @f21(%{{.*}}* noalias sret %agg.result) 100 // CHECK: void @f22(%{{.*}}* noalias sret %agg.result) 101 struct { T11 a; } f17(void) { while (1) {} } 102 struct { T12 a; } f18(void) { while (1) {} } 103 struct { T13 a; } f19(void) { while (1) {} } 104 struct { T14 a; } f20(void) { while (1) {} } 105 struct { T15 a; } f21(void) { while (1) {} } 106 struct { T16 a; } f22(void) { while (1) {} } 107 108 // Single element structures are handled specially 109 110 // CHECK: float @f23() 111 // CHECK: float @f24() 112 // CHECK: float @f25() 113 struct { float a; } f23(void) { while (1) {} } 114 struct { float a[1]; } f24(void) { while (1) {} } 115 struct { struct {} a; struct { float a[1]; } b; } f25(void) { while (1) {} } 116 117 // Small structures are handled recursively 118 // CHECK: i32 @f26() 119 // CHECK: void @f27(%struct.s27* noalias sret %agg.result) 120 struct s26 { struct { char a, b; } a; struct { char a, b; } b; } f26(void) { while (1) {} } 121 struct s27 { struct { char a, b, c; } a; struct { char a; } b; } f27(void) { while (1) {} } 122 123 // CHECK: void @f28(%struct.s28* noalias sret %agg.result) 124 struct s28 { int a; int b[]; } f28(void) { while (1) {} } 125 126 // CHECK-LABEL: define i16 @f29() 127 struct s29 { struct { } a[1]; char b; char c; } f29(void) { while (1) {} } 128 129 // CHECK-LABEL: define i16 @f30() 130 struct s30 { char a; char b : 4; } f30(void) { while (1) {} } 131 132 // CHECK-LABEL: define float @f31() 133 struct s31 { char : 0; float b; char : 0; } f31(void) { while (1) {} } 134 135 // CHECK-LABEL: define i32 @f32() 136 struct s32 { char a; unsigned : 0; } f32(void) { while (1) {} } 137 138 // CHECK-LABEL: define float @f33() 139 struct s33 { float a; long long : 0; } f33(void) { while (1) {} } 140 141 // CHECK-LABEL: define float @f34() 142 struct s34 { struct { int : 0; } a; float b; } f34(void) { while (1) {} } 143 144 // CHECK-LABEL: define i16 @f35() 145 struct s35 { struct { int : 0; } a; char b; char c; } f35(void) { while (1) {} } 146 147 // CHECK-LABEL: define i16 @f36() 148 struct s36 { struct { int : 0; } a[2][10]; char b; char c; } f36(void) { while (1) {} } 149 150 // CHECK-LABEL: define float @f37() 151 struct s37 { float c[1][1]; } f37(void) { while (1) {} } 152 153 // CHECK-LABEL: define void @f38(%struct.s38* noalias sret %agg.result) 154 struct s38 { char a[3]; short b; } f38(void) { while (1) {} } 155 156 // CHECK-LABEL: define void @f39(%struct.s39* byval align 16 %x) 157 typedef int v39 __attribute((vector_size(16))); 158 struct s39 { v39 x; }; 159 void f39(struct s39 x) {} 160 161 // <rdar://problem/7247671> 162 // CHECK-LABEL: define i32 @f40() 163 enum e40 { ec0 = 0 }; 164 enum e40 f40(void) { } 165 166 // CHECK-LABEL: define void ()* @f41() 167 typedef void (^vvbp)(void); 168 vvbp f41(void) { } 169 170 // CHECK-LABEL: define i32 @f42() 171 struct s42 { enum e40 f0; } f42(void) { } 172 173 // CHECK-LABEL: define i64 @f43() 174 struct s43 { enum e40 f0; int f1; } f43(void) { } 175 176 // CHECK-LABEL: define void ()* @f44() 177 struct s44 { vvbp f0; } f44(void) { } 178 179 // CHECK-LABEL: define i64 @f45() 180 struct s45 { vvbp f0; int f1; } f45(void) { } 181 182 // CHECK-LABEL: define void @f46(i32 %a0) 183 void f46(enum e40 a0) { } 184 185 // CHECK-LABEL: define void @f47(void ()* %a1) 186 void f47(vvbp a1) { } 187 188 // CHECK-LABEL: define void @f48(i32 %a0.0) 189 struct s48 { enum e40 f0; }; 190 void f48(struct s48 a0) { } 191 192 // CHECK-LABEL: define void @f49(i32 %a0.0, i32 %a0.1) 193 struct s49 { enum e40 f0; int f1; }; 194 void f49(struct s49 a0) { } 195 196 // CHECK-LABEL: define void @f50(void ()* %a0.0) 197 struct s50 { vvbp f0; }; 198 void f50(struct s50 a0) { } 199 200 // CHECK-LABEL: define void @f51(void ()* %a0.0, i32 %a0.1) 201 struct s51 { vvbp f0; int f1; }; 202 void f51(struct s51 a0) { } 203 204 // CHECK-LABEL: define void @f52(%struct.s52* byval align 4) 205 struct s52 { 206 long double a; 207 }; 208 void f52(struct s52 x) {} 209 210 // CHECK-LABEL: define void @f53(%struct.s53* byval align 4) 211 struct __attribute__((aligned(32))) s53 { 212 int x; 213 int y; 214 }; 215 void f53(struct s53 x) {} 216 217 typedef unsigned short v2i16 __attribute__((__vector_size__(4))); 218 219 // CHECK-LABEL: define i32 @f54(i32 %arg.coerce) 220 // rdar://8359483 221 v2i16 f54(v2i16 arg) { return arg+arg; } 222 223 224 typedef int v4i32 __attribute__((__vector_size__(16))); 225 226 // CHECK-LABEL: define <2 x i64> @f55(<4 x i32> %arg) 227 // PR8029 228 v4i32 f55(v4i32 arg) { return arg+arg; } 229 230 // CHECK-LABEL: define void @f56( 231 // CHECK: i8 signext %a0, %struct.s56_0* byval align 4 %a1, 232 // CHECK: i64 %a2.coerce, %struct.s56_1* byval align 4, 233 // CHECK: i64 %a4.coerce, %struct.s56_2* byval align 4, 234 // CHECK: <4 x i32> %a6, %struct.s56_3* byval align 16 %a7, 235 // CHECK: <2 x double> %a8, %struct.s56_4* byval align 16 %a9, 236 // CHECK: <8 x i32> %a10, %struct.s56_5* byval align 4, 237 // CHECK: <4 x double> %a12, %struct.s56_6* byval align 4) 238 239 // CHECK: call void (i32, ...) @f56_0(i32 1, 240 // CHECK: i32 %{{[^ ]*}}, %struct.s56_0* byval align 4 %{{[^ ]*}}, 241 // CHECK: i64 %{{[^ ]*}}, %struct.s56_1* byval align 4 %{{[^ ]*}}, 242 // CHECK: i64 %{{[^ ]*}}, %struct.s56_2* byval align 4 %{{[^ ]*}}, 243 // CHECK: <4 x i32> %{{[^ ]*}}, %struct.s56_3* byval align 16 %{{[^ ]*}}, 244 // CHECK: <2 x double> %{{[^ ]*}}, %struct.s56_4* byval align 16 %{{[^ ]*}}, 245 // CHECK: <8 x i32> {{[^ ]*}}, %struct.s56_5* byval align 4 %{{[^ ]*}}, 246 // CHECK: <4 x double> {{[^ ]*}}, %struct.s56_6* byval align 4 %{{[^ ]*}}) 247 // CHECK: } 248 // 249 // <rdar://problem/7964854> [i386] clang misaligns long double in structures 250 // when passed byval 251 // <rdar://problem/8431367> clang misaligns parameters on stack 252 typedef int __attribute__((vector_size (8))) t56_v2i; 253 typedef double __attribute__((vector_size (8))) t56_v1d; 254 typedef int __attribute__((vector_size (16))) t56_v4i; 255 typedef double __attribute__((vector_size (16))) t56_v2d; 256 typedef int __attribute__((vector_size (32))) t56_v8i; 257 typedef double __attribute__((vector_size (32))) t56_v4d; 258 259 struct s56_0 { char a; }; 260 struct s56_1 { t56_v2i a; }; 261 struct s56_2 { t56_v1d a; }; 262 struct s56_3 { t56_v4i a; }; 263 struct s56_4 { t56_v2d a; }; 264 struct s56_5 { t56_v8i a; }; 265 struct s56_6 { t56_v4d a; }; 266 267 void f56(char a0, struct s56_0 a1, 268 t56_v2i a2, struct s56_1 a3, 269 t56_v1d a4, struct s56_2 a5, 270 t56_v4i a6, struct s56_3 a7, 271 t56_v2d a8, struct s56_4 a9, 272 t56_v8i a10, struct s56_5 a11, 273 t56_v4d a12, struct s56_6 a13) { 274 extern void f56_0(int x, ...); 275 f56_0(1, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, 276 a10, a11, a12, a13); 277 } 278 279 // CHECK-LABEL: define void @f57(i32 %x.0, i32 %x.1) 280 // CHECK: call void @f57( 281 struct s57 { _Complex int x; }; 282 void f57(struct s57 x) {} void f57a(void) { f57((struct s57){1}); } 283 284 // CHECK-LABEL: define void @f58() 285 union u58 {}; 286 void f58(union u58 x) {} 287 288 // CHECK-LABEL: define i64 @f59() 289 struct s59 { float x __attribute((aligned(8))); }; 290 struct s59 f59() { while (1) {} } 291 292 // CHECK-LABEL: define void @f60(%struct.s60* byval align 4, i32 %y) 293 struct s60 { int x __attribute((aligned(8))); }; 294 void f60(struct s60 x, int y) {} 295 296 // CHECK-LABEL: define void @f61(i32 %x, %struct.s61* byval align 16 %y) 297 typedef int T61 __attribute((vector_size(16))); 298 struct s61 { T61 x; int y; }; 299 void f61(int x, struct s61 y) {} 300 301 // CHECK-LABEL: define void @f62(i32 %x, %struct.s62* byval align 4) 302 typedef int T62 __attribute((vector_size(16))); 303 struct s62 { T62 x; int y; } __attribute((packed, aligned(8))); 304 void f62(int x, struct s62 y) {} 305 306 // CHECK-LABEL: define i32 @f63 307 // CHECK: ptrtoint 308 // CHECK: and {{.*}}, -16 309 // CHECK: inttoptr 310 typedef int T63 __attribute((vector_size(16))); 311 struct s63 { T63 x; int y; }; 312 int f63(int i, ...) { 313 __builtin_va_list ap; 314 __builtin_va_start(ap, i); 315 struct s63 s = __builtin_va_arg(ap, struct s63); 316 __builtin_va_end(ap); 317 return s.y; 318 } 319 320 // CHECK-LABEL: define void @f64(%struct.s64* byval align 4 %x) 321 struct s64 { signed char a[0]; signed char b[]; }; 322 void f64(struct s64 x) {} 323 324 // CHECK-LABEL: define float @f65() 325 struct s65 { signed char a[0]; float b; }; 326 struct s65 f65() { return (struct s65){{},2}; } 327 328 // CHECK-LABEL: define <2 x i64> @f66 329 // CHECK: ptrtoint 330 // CHECK: and {{.*}}, -16 331 // CHECK: inttoptr 332 typedef int T66 __attribute((vector_size(16))); 333 T66 f66(int i, ...) { 334 __builtin_va_list ap; 335 __builtin_va_start(ap, i); 336 T66 v = __builtin_va_arg(ap, T66); 337 __builtin_va_end(ap); 338 return v; 339 } 340 341 // PR14453 342 struct s67 { _Complex unsigned short int a; }; 343 void f67(struct s67 x) {} 344 // CHECK-LABEL: define void @f67(%struct.s67* byval align 4 %x) 345
