1 // REQUIRES: arm-registered-target
2 // RUN: %clang_cc1 -triple aarch64-none-none-eabi \
3 // RUN: -O2 \
4 // RUN: -emit-llvm -o - %s | FileCheck %s
5
6 extern "C" {
7
8 // Base case, nothing interesting.
9 struct S {
10 long x, y;
11 };
12
13 void f0(long, S);
14 void f0m(long, long, long, long, long, S);
g0()15 void g0() {
16 S s = {6, 7};
17 f0(1, s);
18 f0m(1, 2, 3, 4, 5, s);
19 }
20 // CHECK: define void @g0
21 // CHECK: call void @f0(i64 1, [2 x i64] [i64 6, i64 7]
22 // CHECK: call void @f0m{{.*}}[2 x i64] [i64 6, i64 7]
23 // CHECK: declare void @f0(i64, [2 x i64])
24 // CHECK: declare void @f0m(i64, i64, i64, i64, i64, [2 x i64])
25
26 // Aligned struct, passed according to its natural alignment.
27 struct __attribute__((aligned(16))) S16 {
28 long x, y;
29 } s16;
30
31 void f1(long, S16);
32 void f1m(long, long, long, long, long, S16);
g1()33 void g1() {
34 S16 s = {6, 7};
35 f1(1, s);
36 f1m(1, 2, 3, 4, 5, s);
37 }
38 // CHECK: define void @g1
39 // CHECK: call void @f1{{.*}}[2 x i64] [i64 6, i64 7]
40 // CHECK: call void @f1m{{.*}}[2 x i64] [i64 6, i64 7]
41 // CHECK: declare void @f1(i64, [2 x i64])
42 // CHECK: declare void @f1m(i64, i64, i64, i64, i64, [2 x i64])
43
44 // Increased natural alignment.
45 struct SF16 {
46 long x __attribute__((aligned(16)));
47 long y;
48 };
49
50 void f3(long, SF16);
51 void f3m(long, long, long, long, long, SF16);
g3()52 void g3() {
53 SF16 s = {6, 7};
54 f3(1, s);
55 f3m(1, 2, 3, 4, 5, s);
56 }
57 // CHECK: define void @g3
58 // CHECK: call void @f3(i64 1, i128 129127208515966861318)
59 // CHECK: call void @f3m(i64 1, i64 2, i64 3, i64 4, i64 5, i128 129127208515966861318)
60 // CHECK: declare void @f3(i64, i128)
61 // CHECK: declare void @f3m(i64, i64, i64, i64, i64, i128)
62
63
64 // Packed structure.
65 struct __attribute__((packed)) P {
66 int x;
67 long u;
68 };
69
70 void f4(int, P);
71 void f4m(int, int, int, int, int, P);
g4()72 void g4() {
73 P s = {6, 7};
74 f4(1, s);
75 f4m(1, 2, 3, 4, 5, s);
76 }
77 // CHECK: define void @g4()
78 // CHECK: call void @f4(i32 1, [2 x i64] [i64 30064771078, i64 0])
79 // CHECK: void @f4m(i32 1, i32 2, i32 3, i32 4, i32 5, [2 x i64] [i64 30064771078, i64 0])
80 // CHECK: declare void @f4(i32, [2 x i64])
81 // CHECK: declare void @f4m(i32, i32, i32, i32, i32, [2 x i64])
82
83
84 // Packed structure, overaligned, same as above.
85 struct __attribute__((packed, aligned(16))) P16 {
86 int x;
87 long y;
88 };
89
90 void f5(int, P16);
91 void f5m(int, int, int, int, int, P16);
g5()92 void g5() {
93 P16 s = {6, 7};
94 f5(1, s);
95 f5m(1, 2, 3, 4, 5, s);
96 }
97 // CHECK: define void @g5()
98 // CHECK: call void @f5(i32 1, [2 x i64] [i64 30064771078, i64 0])
99 // CHECK: void @f5m(i32 1, i32 2, i32 3, i32 4, i32 5, [2 x i64] [i64 30064771078, i64 0])
100 // CHECK: declare void @f5(i32, [2 x i64])
101 // CHECK: declare void @f5m(i32, i32, i32, i32, i32, [2 x i64])
102
103 }
104