exceptions.cpp revision 3019c444c672938c57f5573840071ecd73425ee7 
1// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fexceptions | FileCheck %s
2
3typedef typeof(sizeof(0)) size_t;
4
5// This just shouldn't crash.
6namespace test0 {
7  struct allocator {
8    allocator();
9    allocator(const allocator&);
10    ~allocator();
11  };
12
13  void f();
14  void g(bool b, bool c) {
15    if (b) {
16      if (!c)
17        throw allocator();
18
19      return;
20    }
21    f();
22  }
23}
24
25namespace test1 {
26  struct A { A(int); A(int, int); ~A(); void *p; };
27
28  A *a() {
29    // CHECK:    define [[A:%.*]]* @_ZN5test11aEv()
30    // CHECK:      [[NEW:%.*]] = call noalias i8* @_Znwm(i64 8)
31    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
32    // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[CAST]], i32 5)
33    // CHECK:      ret [[A]]* [[CAST]]
34    // CHECK:      call void @_ZdlPv(i8* [[NEW]])
35    return new A(5);
36  }
37
38  A *b() {
39    // CHECK:    define [[A:%.*]]* @_ZN5test11bEv()
40    // CHECK:      [[NEW:%.*]] = call noalias i8* @_Znwm(i64 8)
41    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
42    // CHECK-NEXT: [[FOO:%.*]] = invoke i32 @_ZN5test13fooEv()
43    // CHECK:      invoke void @_ZN5test11AC1Ei([[A]]* [[CAST]], i32 [[FOO]])
44    // CHECK:      ret [[A]]* [[CAST]]
45    // CHECK:      call void @_ZdlPv(i8* [[NEW]])
46    extern int foo();
47    return new A(foo());
48  }
49
50  struct B { B(); ~B(); operator int(); int x; };
51  B makeB();
52
53  A *c() {
54    // CHECK:    define [[A:%.*]]* @_ZN5test11cEv()
55    // CHECK:      [[ACTIVE:%.*]] = alloca i1
56    // CHECK-NEXT: store i1 true, i1* [[ACTIVE]]
57    // CHECK-NEXT: [[NEW:%.*]] = call noalias i8* @_Znwm(i64 8)
58    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
59    // CHECK-NEXT: invoke void @_ZN5test11BC1Ev([[B:%.*]]* [[T0:%.*]])
60    // CHECK:      [[T1:%.*]] = getelementptr inbounds [[B]]* [[T0]], i32 0, i32 0
61    // CHECK-NEXT: [[T2:%.*]] = load i32* [[T1]], align 4
62    // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[CAST]], i32 [[T2]])
63    // CHECK:      store i1 false, i1* [[ACTIVE]]
64    // CHECK-NEXT: invoke void @_ZN5test11BD1Ev([[B]]* [[T0]])
65    // CHECK:      ret [[A]]* [[CAST]]
66    // CHECK:      [[ISACTIVE:%.*]] = load i1* [[ACTIVE]]
67    // CHECK-NEXT: br i1 [[ISACTIVE]]
68    // CHECK:      call void @_ZdlPv(i8* [[NEW]])
69    return new A(B().x);
70  }
71
72  A *d() {
73    // CHECK:    define [[A:%.*]]* @_ZN5test11dEv()
74    // CHECK:      [[ACTIVE:%.*]] = alloca i1
75    // CHECK-NEXT: store i1 true, i1* [[ACTIVE]]
76    // CHECK-NEXT: [[NEW:%.*]] = call noalias i8* @_Znwm(i64 8)
77    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
78    // CHECK-NEXT: invoke void @_ZN5test11BC1Ev([[B:%.*]]* [[T0:%.*]])
79    // CHECK:      [[T1:%.*]] = invoke i32 @_ZN5test11BcviEv([[B]]* [[T0]])
80    // CHECK:      invoke void @_ZN5test11AC1Ei([[A]]* [[CAST]], i32 [[T1]])
81    // CHECK:      store i1 false, i1* [[ACTIVE]]
82    // CHECK-NEXT: invoke void @_ZN5test11BD1Ev([[B]]* [[T0]])
83    // CHECK:      ret [[A]]* [[CAST]]
84    // CHECK:      [[ISACTIVE:%.*]] = load i1* [[ACTIVE]]
85    // CHECK-NEXT: br i1 [[ISACTIVE]]
86    // CHECK:      call void @_ZdlPv(i8* [[NEW]])
87    return new A(B());
88  }
89
90  A *e() {
91    // CHECK:    define [[A:%.*]]* @_ZN5test11eEv()
92    // CHECK:      [[ACTIVE:%.*]] = alloca i1
93    // CHECK-NEXT: store i1 true, i1* [[ACTIVE]]
94    // CHECK-NEXT: [[NEW:%.*]] = call noalias i8* @_Znwm(i64 8)
95    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
96    // CHECK-NEXT: invoke void @_ZN5test11BC1Ev([[B:%.*]]* [[T0:%.*]])
97    // CHECK:      [[T1:%.*]] = invoke i32 @_ZN5test11BcviEv([[B]]* [[T0]])
98    // CHECK:      invoke void @_ZN5test11BC1Ev([[B]]* [[T2:%.*]])
99    // CHECK:      [[T3:%.*]] = invoke i32 @_ZN5test11BcviEv([[B]]* [[T2]])
100    // CHECK:      invoke void @_ZN5test11AC1Eii([[A]]* [[CAST]], i32 [[T1]], i32 [[T3]])
101    // CHECK:      store i1 false, i1* [[ACTIVE]]
102    // CHECK-NEXT: invoke void @_ZN5test11BD1Ev([[B]]* [[T2]])
103    // CHECK:      invoke void @_ZN5test11BD1Ev([[B]]* [[T0]])
104    // CHECK:      ret [[A]]* [[CAST]]
105    // CHECK:      [[ISACTIVE:%.*]] = load i1* [[ACTIVE]]
106    // CHECK-NEXT: br i1 [[ISACTIVE]]
107    // CHECK:      call void @_ZdlPv(i8* [[NEW]])
108    return new A(B(), B());
109  }
110  A *f() {
111    return new A(makeB().x);
112  }
113  A *g() {
114    return new A(makeB());
115  }
116  A *h() {
117    return new A(makeB(), makeB());
118  }
119
120  A *i() {
121    // CHECK:    define [[A:%.*]]* @_ZN5test11iEv()
122    // CHECK:      [[X:%.*]] = alloca [[A]]*, align 8
123    // CHECK:      [[ACTIVE:%.*]] = alloca i1
124    // CHECK:      store i1 true, i1* [[ACTIVE]]
125    // CHECK-NEXT: [[NEW:%.*]] = call noalias i8* @_Znwm(i64 8)
126    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
127    // CHECK-NEXT: invoke void @_ZN5test15makeBEv([[B:%.*]]* sret [[T0:%.*]])
128    // CHECK:      [[T1:%.*]] = invoke i32 @_ZN5test11BcviEv([[B]]* [[T0]])
129    // CHECK:      invoke void @_ZN5test11AC1Ei([[A]]* [[CAST]], i32 [[T1]])
130    // CHECK:      store i1 false, i1* [[ACTIVE]]
131    // CHECK-NEXT: store [[A]]* [[CAST]], [[A]]** [[X]], align 8
132    // CHECK:      invoke void @_ZN5test15makeBEv([[B:%.*]]* sret [[T2:%.*]])
133    // CHECK:      [[RET:%.*]] = load [[A]]** [[X]], align 8
134    // CHECK:      invoke void @_ZN5test11BD1Ev([[B]]* [[T2]])
135    // CHECK:      invoke void @_ZN5test11BD1Ev([[B]]* [[T0]])
136    // CHECK:      ret [[A]]* [[RET]]
137    // CHECK:      [[ISACTIVE:%.*]] = load i1* [[ACTIVE]]
138    // CHECK-NEXT: br i1 [[ISACTIVE]]
139    // CHECK:      call void @_ZdlPv(i8* [[NEW]])
140    A *x;
141    return (x = new A(makeB()), makeB(), x);
142  }
143}
144
145namespace test2 {
146  struct A {
147    A(int); A(int, int); ~A();
148    void *p;
149    void *operator new(size_t);
150    void operator delete(void*, size_t);
151  };
152
153  A *a() {
154    // CHECK:    define [[A:%.*]]* @_ZN5test21aEv()
155    // CHECK:      [[NEW:%.*]] = call i8* @_ZN5test21AnwEm(i64 8)
156    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
157    // CHECK-NEXT: invoke void @_ZN5test21AC1Ei([[A]]* [[CAST]], i32 5)
158    // CHECK:      ret [[A]]* [[CAST]]
159    // CHECK:      invoke void @_ZN5test21AdlEPvm(i8* [[NEW]], i64 8)
160    // CHECK:      call void @_ZSt9terminatev()
161    return new A(5);
162  }
163}
164
165namespace test3 {
166  struct A {
167    A(int); A(int, int); A(const A&); ~A();
168    void *p;
169    void *operator new(size_t, void*, double);
170    void operator delete(void*, void*, double);
171  };
172
173  void *foo();
174  double bar();
175  A makeA(), *makeAPtr();
176
177  A *a() {
178    // CHECK:    define [[A:%.*]]* @_ZN5test31aEv()
179    // CHECK:      [[FOO:%.*]] = call i8* @_ZN5test33fooEv()
180    // CHECK:      [[BAR:%.*]] = call double @_ZN5test33barEv()
181    // CHECK:      [[NEW:%.*]] = call i8* @_ZN5test31AnwEmPvd(i64 8, i8* [[FOO]], double [[BAR]])
182    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
183    // CHECK-NEXT: invoke void @_ZN5test31AC1Ei([[A]]* [[CAST]], i32 5)
184    // CHECK:      ret [[A]]* [[CAST]]
185    // CHECK:      invoke void @_ZN5test31AdlEPvS1_d(i8* [[NEW]], i8* [[FOO]], double [[BAR]])
186    // CHECK:      call void @_ZSt9terminatev()
187    return new(foo(),bar()) A(5);
188  }
189
190  // rdar://problem/8439196
191  A *b(bool cond) {
192
193    // CHECK:    define [[A:%.*]]* @_ZN5test31bEb(i1 zeroext
194    // CHECK:      [[SAVED0:%.*]] = alloca i8*
195    // CHECK-NEXT: [[SAVED1:%.*]] = alloca i8*
196    // CHECK-NEXT: [[CLEANUPACTIVE:%.*]] = alloca i1
197    // CHECK-NEXT: [[TMP:%.*]] = alloca [[A]], align 8
198    // CHECK:      [[TMPACTIVE:%.*]] = alloca i1
199    // CHECK-NEXT: store i1 false, i1* [[TMPACTIVE]]
200    // CHECK-NEXT: store i1 false, i1* [[CLEANUPACTIVE]]
201
202    // CHECK:      [[COND:%.*]] = trunc i8 {{.*}} to i1
203    // CHECK-NEXT: br i1 [[COND]]
204    return (cond ?
205
206    // CHECK:      [[FOO:%.*]] = call i8* @_ZN5test33fooEv()
207    // CHECK-NEXT: [[NEW:%.*]] = call i8* @_ZN5test31AnwEmPvd(i64 8, i8* [[FOO]], double [[CONST:.*]])
208    // CHECK-NEXT: store i8* [[NEW]], i8** [[SAVED0]]
209    // CHECK-NEXT: store i8* [[FOO]], i8** [[SAVED1]]
210    // CHECK-NEXT: store i1 true, i1* [[CLEANUPACTIVE]]
211    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
212    // CHECK-NEXT: invoke void @_ZN5test35makeAEv([[A]]* sret [[TMP]])
213    // CHECK:      store i1 true, i1* [[TMPACTIVE]]
214    // CHECK-NEXT: invoke void @_ZN5test31AC1ERKS0_([[A]]* [[CAST]], [[A]]* [[TMP]])
215    // CHECK:      store i1 false, i1* [[CLEANUPACTIVE]]
216    // CHECK-NEXT: br label
217    //   -> cond.end
218            new(foo(),10.0) A(makeA()) :
219
220    // CHECK:      [[MAKE:%.*]] = invoke [[A]]* @_ZN5test38makeAPtrEv()
221    // CHECK:      br label
222    //   -> cond.end
223            makeAPtr());
224
225    // cond.end:
226    // CHECK:      [[RESULT:%.*]] = phi [[A]]* {{.*}}[[CAST]]{{.*}}[[MAKE]]
227    // CHECK-NEXT: [[ISACTIVE:%.*]] = load i1* [[TMPACTIVE]]
228    // CHECK-NEXT: br i1 [[ISACTIVE]]
229    // CHECK:      invoke void @_ZN5test31AD1Ev
230    // CHECK:      ret [[A]]* [[RESULT]]
231
232    // in the EH path:
233    // CHECK:      [[ISACTIVE:%.*]] = load i1* [[CLEANUPACTIVE]]
234    // CHECK-NEXT: br i1 [[ISACTIVE]]
235    // CHECK:      [[V0:%.*]] = load i8** [[SAVED0]]
236    // CHECK-NEXT: [[V1:%.*]] = load i8** [[SAVED1]]
237    // CHECK-NEXT: invoke void @_ZN5test31AdlEPvS1_d(i8* [[V0]], i8* [[V1]], double [[CONST]])
238  }
239}
240
241namespace test4 {
242  struct A {
243    A(int); A(int, int); ~A();
244    void *p;
245    void *operator new(size_t, void*, void*);
246    void operator delete(void*, size_t, void*, void*); // not a match
247  };
248
249  A *a() {
250    // CHECK:    define [[A:%.*]]* @_ZN5test41aEv()
251    // CHECK:      [[FOO:%.*]] = call i8* @_ZN5test43fooEv()
252    // CHECK-NEXT: [[BAR:%.*]] = call i8* @_ZN5test43barEv()
253    // CHECK-NEXT: [[NEW:%.*]] = call i8* @_ZN5test41AnwEmPvS1_(i64 8, i8* [[FOO]], i8* [[BAR]])
254    // CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[NEW]] to [[A]]*
255    // CHECK-NEXT: call void @_ZN5test41AC1Ei([[A]]* [[CAST]], i32 5)
256    // CHECK-NEXT: ret [[A]]* [[CAST]]
257    extern void *foo(), *bar();
258
259    return new(foo(),bar()) A(5);
260  }
261}
262