x86_32-arguments-darwin.c revision ca3d3fcabaa0d7255e9a778ef468daa6e052b211
1// RUN: %clang_cc1 -w -fblocks -triple i386-apple-darwin9 -target-cpu yonah -emit-llvm -o - %s | FileCheck %s 2 3// CHECK: define signext i8 @f0() 4char f0(void) { 5 return 0; 6} 7 8// CHECK: define signext i16 @f1() 9short f1(void) { 10 return 0; 11} 12 13// CHECK: define i32 @f2() 14int f2(void) { 15 return 0; 16} 17 18// CHECK: define float @f3() 19float f3(void) { 20 return 0; 21} 22 23// CHECK: define double @f4() 24double f4(void) { 25 return 0; 26} 27 28// CHECK: define x86_fp80 @f5() 29long double f5(void) { 30 return 0; 31} 32 33// CHECK: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4) 34void f6(char a0, short a1, int a2, long long a3, void *a4) {} 35 36// CHECK: define void @f7(i32 %a0) 37typedef enum { A, B, C } e7; 38void f7(e7 a0) {} 39 40// CHECK: define i64 @f8_1() 41// CHECK: define void @f8_2(i32 %a0.0, i32 %a0.1) 42struct s8 { 43 int a; 44 int b; 45}; 46struct s8 f8_1(void) { while (1) {} } 47void f8_2(struct s8 a0) {} 48 49// This should be passed just as s8. 50 51// CHECK: 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: define void @f9_2(%struct.s9* byval align 4 %a0) 56struct s9 { 57 int a : 17; 58 int b; 59}; 60struct s9 f9_1(void) { while (1) {} } 61void f9_2(struct s9 a0) {} 62 63// Return of small structures and unions 64 65// CHECK: float @f10() 66struct 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() 79typedef short T11 __attribute__ ((vector_size (4))); 80T11 f11(void) { while (1) {} } 81typedef int T12 __attribute__ ((vector_size (8))); 82T12 f12(void) { while (1) {} } 83typedef long long T13 __attribute__ ((vector_size (8))); 84T13 f13(void) { while (1) {} } 85typedef double T14 __attribute__ ((vector_size (8))); 86T14 f14(void) { while (1) {} } 87typedef long long T15 __attribute__ ((vector_size (16))); 88T15 f15(void) { while (1) {} } 89typedef double T16 __attribute__ ((vector_size (16))); 90T16 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) 101struct { T11 a; } f17(void) { while (1) {} } 102struct { T12 a; } f18(void) { while (1) {} } 103struct { T13 a; } f19(void) { while (1) {} } 104struct { T14 a; } f20(void) { while (1) {} } 105struct { T15 a; } f21(void) { while (1) {} } 106struct { 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() 113struct { float a; } f23(void) { while (1) {} } 114struct { float a[1]; } f24(void) { while (1) {} } 115struct { 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) 120struct s26 { struct { char a, b; } a; struct { char a, b; } b; } f26(void) { while (1) {} } 121struct 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) 124struct s28 { int a; int b[]; } f28(void) { while (1) {} } 125 126// CHECK: define i16 @f29() 127struct s29 { struct { } a[1]; char b; char c; } f29(void) { while (1) {} } 128 129// CHECK: define i16 @f30() 130struct s30 { char a; char b : 4; } f30(void) { while (1) {} } 131 132// CHECK: define float @f31() 133struct s31 { char : 0; float b; char : 0; } f31(void) { while (1) {} } 134 135// CHECK: define i32 @f32() 136struct s32 { char a; unsigned : 0; } f32(void) { while (1) {} } 137 138// CHECK: define float @f33() 139struct s33 { float a; long long : 0; } f33(void) { while (1) {} } 140 141// CHECK: define float @f34() 142struct s34 { struct { int : 0; } a; float b; } f34(void) { while (1) {} } 143 144// CHECK: define i16 @f35() 145struct s35 { struct { int : 0; } a; char b; char c; } f35(void) { while (1) {} } 146 147// CHECK: define i16 @f36() 148struct s36 { struct { int : 0; } a[2][10]; char b; char c; } f36(void) { while (1) {} } 149 150// CHECK: define float @f37() 151struct s37 { float c[1][1]; } f37(void) { while (1) {} } 152 153// CHECK: define void @f38(%struct.s38* noalias sret %agg.result) 154struct s38 { char a[3]; short b; } f38(void) { while (1) {} } 155 156// CHECK: define void @f39(%struct.s39* byval align 16 %x) 157typedef int v39 __attribute((vector_size(16))); 158struct s39 { v39 x; }; 159void f39(struct s39 x) {} 160 161// <rdar://problem/7247671> 162// CHECK: define i32 @f40() 163enum e40 { ec0 = 0 }; 164enum e40 f40(void) { } 165 166// CHECK: define void ()* @f41() 167typedef void (^vvbp)(void); 168vvbp f41(void) { } 169 170// CHECK: define i32 @f42() 171struct s42 { enum e40 f0; } f42(void) { } 172 173// CHECK: define i64 @f43() 174struct s43 { enum e40 f0; int f1; } f43(void) { } 175 176// CHECK: define i32 @f44() 177struct s44 { vvbp f0; } f44(void) { } 178 179// CHECK: define i64 @f45() 180struct s45 { vvbp f0; int f1; } f45(void) { } 181 182// CHECK: define void @f46(i32 %a0) 183void f46(enum e40 a0) { } 184 185// CHECK: define void @f47(void ()* %a1) 186void f47(vvbp a1) { } 187 188// CHECK: define void @f48(i32 %a0.0) 189struct s48 { enum e40 f0; }; 190void f48(struct s48 a0) { } 191 192// CHECK: define void @f49(i32 %a0.0, i32 %a0.1) 193struct s49 { enum e40 f0; int f1; }; 194void f49(struct s49 a0) { } 195 196// CHECK: define void @f50(void ()* %a0.0) 197struct s50 { vvbp f0; }; 198void f50(struct s50 a0) { } 199 200// CHECK: define void @f51(void ()* %a0.0, i32 %a0.1) 201struct s51 { vvbp f0; int f1; }; 202void f51(struct s51 a0) { } 203 204// CHECK: define void @f52(%struct.s52* byval align 4) 205struct s52 { 206 long double a; 207}; 208void f52(struct s52 x) {} 209 210// CHECK: define void @f53(%struct.s53* byval align 4) 211struct __attribute__((aligned(32))) s53 { 212 int x; 213 int y; 214}; 215void f53(struct s53 x) {} 216 217typedef unsigned short v2i16 __attribute__((__vector_size__(4))); 218 219// CHECK: define i32 @f54(i32 %arg.coerce) 220// rdar://8359483 221v2i16 f54(v2i16 arg) { return arg+arg; } 222 223 224typedef int v4i32 __attribute__((__vector_size__(16))); 225 226// CHECK: define <2 x i64> @f55(<4 x i32> %arg) 227// PR8029 228v4i32 f55(v4i32 arg) { return arg+arg; } 229 230// CHECK: define void @f56( 231// CHECK: i8 signext %a0, %struct.s56_0* byval align 4 %a1, 232// CHECK: x86_mmx %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: x86_mmx %{{[^ ]*}}, %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 252typedef int __attribute__((vector_size (8))) t56_v2i; 253typedef double __attribute__((vector_size (8))) t56_v1d; 254typedef int __attribute__((vector_size (16))) t56_v4i; 255typedef double __attribute__((vector_size (16))) t56_v2d; 256typedef int __attribute__((vector_size (32))) t56_v8i; 257typedef double __attribute__((vector_size (32))) t56_v4d; 258 259struct s56_0 { char a; }; 260struct s56_1 { t56_v2i a; }; 261struct s56_2 { t56_v1d a; }; 262struct s56_3 { t56_v4i a; }; 263struct s56_4 { t56_v2d a; }; 264struct s56_5 { t56_v8i a; }; 265struct s56_6 { t56_v4d a; }; 266 267void 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: define void @f57(i32 %x.0, i32 %x.1) 280// CHECK: call void @f57( 281struct s57 { _Complex int x; }; 282void f57(struct s57 x) {} void f57a(void) { f57((struct s57){1}); } 283