xref: /llvm-project/clang/test/CodeGenObjCXX/msabi-stret-arm64.mm (revision 3dcd2cca7777b338d87deb1ca506df1376123667)
1// RUN: %clang_cc1 -triple aarch64-pc-windows-msvc -fobjc-runtime=gnustep-2.2 -fobjc-dispatch-method=non-legacy -emit-llvm -o - %s | FileCheck %s
2
3// Pass and return for type size <= 8 bytes.
4struct S1 {
5  int a[2];
6};
7
8// Pass and return hfa <= 8 bytes
9struct F1 {
10  float a[2];
11};
12
13// Pass and return for type size > 16 bytes.
14struct S2 {
15  int a[5];
16};
17
18// Pass and return aggregate (of size < 16 bytes) with non-trivial destructor.
19// Sret and inreg: Returned in x0
20struct S3 {
21  int a[3];
22  ~S3();
23};
24S3::~S3() {
25}
26
27
28@interface MsgTest { id isa; } @end
29@implementation MsgTest
30- (S1) smallS1 {
31  S1 x;
32  x.a[0] = 0;
33  x.a[1] = 1;
34  return x;
35
36}
37- (F1) smallF1 {
38  F1 x;
39  x.a[0] = 0.2f;
40  x.a[1] = 0.5f;
41  return x;
42}
43- (S2) stretS2 {
44  S2 x;
45  for (int i = 0; i < 5; i++) {
46    x.a[i] = i;
47  }
48  return x;
49}
50- (S3) stretInRegS3 {
51  S3 x;
52  for (int i = 0; i < 3; i++) {
53    x.a[i] = i;
54  }
55  return x;
56}
57+ (S3) msgTestStretInRegS3 {
58  S3 x;
59  for (int i = 0; i < 3; i++) {
60    x.a[i] = i;
61  }
62  return x;
63}
64@end
65
66void test0(MsgTest *t) {
67    // CHECK: call {{.*}} @objc_msgSend
68    S1 ret = [t smallS1];
69    // CHECK: call {{.*}} @objc_msgSend
70    F1 ret2 = [t smallF1];
71    // CHECK: call {{.*}} @objc_msgSend_stret
72    S2 ret3 = [t stretS2];
73    // CHECK: call {{.*}} @objc_msgSend_stret2
74    S3 ret4 = [t stretInRegS3];
75    // CHECK: call {{.*}} @objc_msgSend_stret2
76    S3 ret5 = [MsgTest msgTestStretInRegS3];
77}
78