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 | |