1 | // RUN: %clang_cc1 -triple x86_64-unknown-nacl -emit-llvm -o - %s| FileCheck %s |
2 | #include <stdarg.h> |
3 | // Test for x86-64 structure representation (instead of pnacl representation), |
4 | // in particular for unions. Also crib a few tests from x86 Linux. |
5 | |
6 | union PP_VarValue { |
7 | int as_int; |
8 | double as_double; |
9 | long long as_i64; |
10 | }; |
11 | |
12 | struct PP_Var { |
13 | int type; |
14 | int padding; |
15 | union PP_VarValue value; |
16 | }; |
17 | |
18 | // CHECK: define { i64, i64 } @f0() |
19 | struct PP_Var f0() { |
20 | struct PP_Var result = { 0, 0, 0 }; |
21 | return result; |
22 | } |
23 | |
24 | // CHECK-LABEL: define void @f1(i64 %p1.coerce0, i64 %p1.coerce1) |
25 | void f1(struct PP_Var p1) { while(1) {} } |
26 | |
27 | // long doubles are 64 bits on NaCl |
28 | // CHECK-LABEL: define double @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 | |
37 | // CHECK-LABEL: define i64 @f8_1() |
38 | // CHECK-LABEL: define void @f8_2(i64 %a0.coerce) |
39 | union u8 { |
40 | long double a; |
41 | int b; |
42 | }; |
43 | union u8 f8_1() { while (1) {} } |
44 | void f8_2(union u8 a0) {} |
45 | |
46 | // CHECK-LABEL: define i64 @f9() |
47 | struct s9 { int a; int b; int : 0; } f9(void) { while (1) {} } |
48 | |
49 | // CHECK-LABEL: define void @f10(i64 %a0.coerce) |
50 | struct s10 { int a; int b; int : 0; }; |
51 | void f10(struct s10 a0) {} |
52 | |
53 | // CHECK-LABEL: define double @f11() |
54 | union { long double a; float b; } f11() { while (1) {} } |
55 | |
56 | // CHECK-LABEL: define i32 @f12_0() |
57 | // CHECK-LABEL: define void @f12_1(i32 %a0.coerce) |
58 | struct s12 { int a __attribute__((aligned(16))); }; |
59 | struct s12 f12_0(void) { while (1) {} } |
60 | void f12_1(struct s12 a0) {} |
61 | |
62 | // Check that sret parameter is accounted for when checking available integer |
63 | // registers. |
64 | // CHECK: define void @f13(%struct.s13_0* noalias sret %agg.result, i32 %a, i32 %b, i32 %c, i32 %d, {{.*}}* byval align 8 %e, i32 %f) |
65 | |
66 | struct s13_0 { long long f0[3]; }; |
67 | struct s13_1 { long long f0[2]; }; |
68 | struct s13_0 f13(int a, int b, int c, int d, |
69 | struct s13_1 e, int f) { while (1) {} } |
70 | |
71 | // CHECK-LABEL: define void @f20(%struct.s20* byval align 32 %x) |
72 | struct __attribute__((aligned(32))) s20 { |
73 | int x; |
74 | int y; |
75 | }; |
76 | void f20(struct s20 x) {} |
77 | |
78 | |
79 | // CHECK: declare void @func(i64) |
80 | typedef struct _str { |
81 | union { |
82 | long double a; |
83 | long c; |
84 | }; |
85 | } str; |
86 | |
87 | void func(str s); |
88 | str ss; |
89 | void f9122143() |
90 | { |
91 | func(ss); |
92 | } |
93 | |