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1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-arc -fexceptions -fobjc-exceptions -fcxx-exceptions -fobjc-runtime-has-weak -o - -fobjc-arc-exceptions %s | FileCheck %s
2
3@class Ety;
4
5// These first four tests are all PR11732 / rdar://problem/10667070.
6
7void test0_helper(void);
8void test0(void) {
9  @try {
10    test0_helper();
11  } @catch (Ety *e) {
12  }
13}
14// CHECK-LABEL: define void @_Z5test0v()
15// CHECK:      [[E:%.*]] = alloca [[ETY:%.*]]*, align 8
16// CHECK-NEXT: invoke void @_Z12test0_helperv()
17// CHECK:      [[T0:%.*]] = call i8* @objc_begin_catch(
18// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[ETY]]*
19// CHECK-NEXT: [[T2:%.*]] = bitcast [[ETY]]* [[T1]] to i8*
20// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_retain(i8* [[T2]]) [[NUW:#[0-9]+]]
21// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to [[ETY]]*
22// CHECK-NEXT: store [[ETY]]* [[T4]], [[ETY]]** [[E]]
23// CHECK-NEXT: [[T0:%.*]] = bitcast [[ETY]]** [[E]] to i8**
24// CHECK-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* null) [[NUW]]
25// CHECK-NEXT: call void @objc_end_catch() [[NUW]]
26
27void test1_helper(void);
28void test1(void) {
29  @try {
30    test1_helper();
31  } @catch (__weak Ety *e) {
32  }
33}
34// CHECK-LABEL: define void @_Z5test1v()
35// CHECK:      [[E:%.*]] = alloca [[ETY:%.*]]*, align 8
36// CHECK-NEXT: invoke void @_Z12test1_helperv()
37// CHECK:      [[T0:%.*]] = call i8* @objc_begin_catch(
38// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[ETY]]*
39// CHECK-NEXT: [[T2:%.*]] = bitcast [[ETY]]** [[E]] to i8**
40// CHECK-NEXT: [[T3:%.*]] = bitcast [[ETY]]* [[T1]] to i8*
41// CHECK-NEXT: call i8* @objc_initWeak(i8** [[T2]], i8* [[T3]]) [[NUW]]
42// CHECK-NEXT: [[T0:%.*]] = bitcast [[ETY]]** [[E]] to i8**
43// CHECK-NEXT: call void @objc_destroyWeak(i8** [[T0]]) [[NUW]]
44// CHECK-NEXT: call void @objc_end_catch() [[NUW]]
45
46void test2_helper(void);
47void test2(void) {
48  try {
49    test2_helper();
50  } catch (Ety *e) {
51  }
52}
53// CHECK-LABEL: define void @_Z5test2v()
54// CHECK:      [[E:%.*]] = alloca [[ETY:%.*]]*, align 8
55// CHECK-NEXT: invoke void @_Z12test2_helperv()
56// CHECK:      [[T0:%.*]] = call i8* @__cxa_begin_catch(
57// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[ETY]]*
58// CHECK-NEXT: [[T2:%.*]] = bitcast [[ETY]]* [[T1]] to i8*
59// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_retain(i8* [[T2]]) [[NUW]]
60// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to [[ETY]]*
61// CHECK-NEXT: store [[ETY]]* [[T4]], [[ETY]]** [[E]]
62// CHECK-NEXT: [[T0:%.*]] = bitcast [[ETY]]** [[E]] to i8**
63// CHECK-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* null) [[NUW]]
64// CHECK-NEXT: call void @__cxa_end_catch() [[NUW]]
65
66void test3_helper(void);
67void test3(void) {
68  try {
69    test3_helper();
70  } catch (Ety * __weak e) {
71  }
72}
73// CHECK-LABEL: define void @_Z5test3v()
74// CHECK:      [[E:%.*]] = alloca [[ETY:%.*]]*, align 8
75// CHECK-NEXT: invoke void @_Z12test3_helperv()
76// CHECK:      [[T0:%.*]] = call i8* @__cxa_begin_catch(
77// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[ETY]]*
78// CHECK-NEXT: [[T2:%.*]] = bitcast [[ETY]]** [[E]] to i8**
79// CHECK-NEXT: [[T3:%.*]] = bitcast [[ETY]]* [[T1]] to i8*
80// CHECK-NEXT: call i8* @objc_initWeak(i8** [[T2]], i8* [[T3]]) [[NUW]]
81// CHECK-NEXT: [[T0:%.*]] = bitcast [[ETY]]** [[E]] to i8**
82// CHECK-NEXT: call void @objc_destroyWeak(i8** [[T0]]) [[NUW]]
83// CHECK-NEXT: call void @__cxa_end_catch() [[NUW]]
84
85namespace test4 {
86  struct A {
87    id single;
88    id array[2][3];
89
90    A();
91  };
92
93  A::A() {
94    throw 0;
95  }
96  // CHECK-LABEL:    define void @_ZN5test41AC2Ev(
97  // CHECK:      [[THIS:%.*]] = load [[A:%.*]]*, [[A:%.*]]** {{%.*}}
98  //   Construct single.
99  // CHECK-NEXT: [[SINGLE:%.*]] = getelementptr inbounds [[A]], [[A]]* [[THIS]], i32 0, i32 0
100  // CHECK-NEXT: store i8* null, i8** [[SINGLE]], align 8
101  //   Construct array.
102  // CHECK-NEXT: [[ARRAY:%.*]] = getelementptr inbounds [[A]], [[A]]* [[THIS]], i32 0, i32 1
103  // CHECK-NEXT: [[T0:%.*]] = bitcast [2 x [3 x i8*]]* [[ARRAY]] to i8*
104  // CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 48, i32 8, i1 false)
105  //   throw 0;
106  // CHECK:      invoke void @__cxa_throw(
107  //   Landing pad from throw site:
108  // CHECK:      landingpad
109  //     - First, destroy all of array.
110  // CHECK:      [[ARRAYBEGIN:%.*]] = getelementptr inbounds [2 x [3 x i8*]], [2 x [3 x i8*]]* [[ARRAY]], i32 0, i32 0, i32 0
111  // CHECK-NEXT: [[ARRAYEND:%.*]] = getelementptr inbounds i8*, i8** [[ARRAYBEGIN]], i64 6
112  // CHECK-NEXT: br label
113  // CHECK:      [[AFTER:%.*]] = phi i8** [ [[ARRAYEND]], {{%.*}} ], [ [[ELT:%.*]], {{%.*}} ]
114  // CHECK-NEXT: [[ELT]] = getelementptr inbounds i8*, i8** [[AFTER]], i64 -1
115  // CHECK-NEXT: call void @objc_storeStrong(i8** [[ELT]], i8* null) [[NUW]]
116  // CHECK-NEXT: [[DONE:%.*]] = icmp eq i8** [[ELT]], [[ARRAYBEGIN]]
117  // CHECK-NEXT: br i1 [[DONE]],
118  //     - Next, destroy single.
119  // CHECK:      call void @objc_storeStrong(i8** [[SINGLE]], i8* null) [[NUW]]
120  // CHECK:      br label
121  // CHECK:      resume
122}
123
124// rdar://21397946
125__attribute__((ns_returns_retained)) id test5_helper(unsigned);
126void test5(void) {
127  id array[][2] = {
128    test5_helper(0),
129    test5_helper(1),
130    test5_helper(2),
131    test5_helper(3)
132  };
133}
134// CHECK-LABEL: define void @_Z5test5v()
135// CHECK:       [[ARRAY:%.*]] = alloca [2 x [2 x i8*]], align
136// CHECK:       [[A0:%.*]] = getelementptr inbounds [2 x [2 x i8*]], [2 x [2 x i8*]]* [[ARRAY]], i64 0, i64 0
137// CHECK-NEXT:  store [2 x i8*]* [[A0]],
138// CHECK-NEXT:  [[A00:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[A0]], i64 0, i64 0
139// CHECK-NEXT:  store i8** [[A00]],
140// CHECK-NEXT:  [[T0:%.*]] = invoke i8* @_Z12test5_helperj(i32 0)
141// CHECK:       store i8* [[T0]], i8** [[A00]], align
142// CHECK-NEXT:  [[A01:%.*]] = getelementptr inbounds i8*, i8** [[A00]], i64 1
143// CHECK-NEXT:  store i8** [[A01]],
144// CHECK-NEXT:  [[T0:%.*]] = invoke i8* @_Z12test5_helperj(i32 1)
145// CHECK:       store i8* [[T0]], i8** [[A01]], align
146// CHECK-NEXT:  [[A1:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[A0]], i64 1
147// CHECK-NEXT:  store [2 x i8*]* [[A1]],
148// CHECK-NEXT:  [[A10:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* [[A1]], i64 0, i64 0
149// CHECK-NEXT:  store i8** [[A10]],
150// CHECK-NEXT:  [[T0:%.*]] = invoke i8* @_Z12test5_helperj(i32 2)
151// CHECK:       store i8* [[T0]], i8** [[A10]], align
152// CHECK-NEXT:  [[A11:%.*]] = getelementptr inbounds i8*, i8** [[A10]], i64 1
153// CHECK-NEXT:  store i8** [[A11]],
154// CHECK-NEXT:  [[T0:%.*]] = invoke i8* @_Z12test5_helperj(i32 3)
155// CHECK:       store i8* [[T0]], i8** [[A11]], align
156
157// CHECK: attributes [[NUW]] = { nounwind }
158