1// RUN: %clang_cc1 -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -fexceptions -fobjc-exceptions -O2 -o - %s | FileCheck %s
2
3// Test we maintain at least a basic amount of interoperation between
4// ObjC and C++ exceptions in the legacy runtime.
5
6// rdar://12364847
7
8void foo(void);
9
10void test0(id obj) {
11  @synchronized(obj) {
12    foo();
13  }
14}
15// CHECK-LABEL:    define{{.*}} void @_Z5test0P11objc_object(
16//   Enter the @synchronized block.
17// CHECK:      call i32 @objc_sync_enter(i8* [[OBJ:%.*]])
18// CHECK:      call void @objc_exception_try_enter([[BUF_T:%.*]]* nonnull [[BUF:%.*]])
19// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[BUF_T]], [[BUF_T]]* [[BUF]], i32 0, i32 0, i32 0
20// CHECK-NEXT: [[T1:%.*]] = call i32 @_setjmp(i32* nonnull [[T0]])
21// CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0
22// CHECK-NEXT: br i1 [[T2]],
23
24//   Body.
25// CHECK:      invoke void @_Z3foov()
26
27//   Leave the @synchronized.  The reload of obj here is unnecessary.
28// CHECK:      call void @objc_exception_try_exit([[BUF_T]]* nonnull [[BUF]])
29// CHECK-NEXT: [[T0:%.*]] = load i8*, i8**
30// CHECK-NEXT: call i32 @objc_sync_exit(i8* [[T0]])
31// CHECK-NEXT: ret void
32
33//   Real EH cleanup.
34// CHECK:      [[T0:%.*]] = landingpad
35// CHECK-NEXT:    cleanup
36// CHECK-NEXT: call void @objc_exception_try_exit([[BUF_T]]* nonnull [[BUF]])
37// CHECK-NEXT: [[T0:%.*]] = load i8*, i8**
38// CHECK-NEXT: call i32 @objc_sync_exit(i8* [[T0]])
39// CHECK-NEXT: resume
40
41//   ObjC EH "cleanup".
42// CHECK:      [[T0:%.*]] = load i8*, i8**
43// CHECK-NEXT: call i32 @objc_sync_exit(i8* [[T0]])
44// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_exception_extract([[BUF_T]]* nonnull [[BUF]])
45// CHECK-NEXT: call void @objc_exception_throw(i8* [[T0]])
46// CHECK-NEXT: unreachable
47
48void test1(id obj, bool *failed) {
49  @try {
50    foo();
51  } @catch (...) {
52    *failed = true;
53  }
54}
55// CHECK-LABEL:    define{{.*}} void @_Z5test1P11objc_objectPb(
56//   Enter the @try block.
57// CHECK:      call void @objc_exception_try_enter([[BUF_T]]* nonnull [[BUF:%.*]])
58// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds [[BUF_T]], [[BUF_T]]* [[BUF]], i32 0, i32 0, i32 0
59// CHECK-NEXT: [[T1:%.*]] = call i32 @_setjmp(i32* nonnull [[T0]])
60// CHECK-NEXT: [[T2:%.*]] = icmp eq i32 [[T1]], 0
61// CHECK-NEXT: br i1 [[T2]],
62
63//   Body.
64// CHECK:      invoke void @_Z3foov()
65
66//   Catch handler.  Reload of 'failed' address is unnecessary.
67// CHECK:      [[T0:%.*]] = load i8*, i8**
68// CHECK-NEXT: store i8 1, i8* [[T0]],
69// CHECK-NEXT: br label
70
71//   Leave the @try.
72// CHECK:      call void @objc_exception_try_exit([[BUF_T]]* nonnull [[BUF]])
73// CHECK-NEXT: br label
74// CHECK:      ret void
75
76
77//   Real EH cleanup.
78// CHECK:      [[T0:%.*]] = landingpad
79// CHECK-NEXT:    cleanup
80// CHECK-NEXT: call void @objc_exception_try_exit([[BUF_T]]* nonnull [[BUF]])
81// CHECK-NEXT: resume
82
83