1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -O2 -disable-llvm-passes -o - %s | FileCheck %s
3 struct NSFastEnumerationState;
5 - (unsigned long) countByEnumeratingWithState: (struct NSFastEnumerationState*) state
7 count: (unsigned long) bufferSize;
9 NSArray *nsarray() { return 0; }
10 // CHECK: define [[NSARRAY:%.*]]* @_Z7nsarrayv()
14 // rdar://problem/9315552
15 // The analogous ObjC testcase test46 in arr.m.
16 void test0(__weak id *wp, __weak volatile id *wvp) {
17 extern id test0_helper(void);
19 // TODO: this is sub-optimal, we should retain at the actual call site.
20 // TODO: in the non-volatile case, we do not need to be reloading.
22 // CHECK: [[T0:%.*]] = call i8* @_Z12test0_helperv()
23 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
24 // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8
25 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[T2]], i8* [[T1]])
26 // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.retain(i8* [[T3]])
27 // CHECK-NEXT: store i8* [[T4]], i8**
28 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
29 id x = *wp = test0_helper();
31 // CHECK: [[T0:%.*]] = call i8* @_Z12test0_helperv()
32 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
33 // CHECK-NEXT: [[T2:%.*]] = load i8**, i8*** {{%.*}}, align 8
34 // CHECK-NEXT: [[T3:%.*]] = call i8* @llvm.objc.storeWeak(i8** [[T2]], i8* [[T1]])
35 // CHECK-NEXT: [[T4:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[T2]])
36 // CHECK-NEXT: store i8* [[T4]], i8**
37 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T1]])
38 id y = *wvp = test0_helper();
41 // rdar://problem/9320648
42 struct Test1_helper { Test1_helper(); };
44 @implementation Test1 { Test1_helper x; } @end
45 // CHECK: define internal i8* @"\01-[Test1 .cxx_construct]"(
46 // CHECK: call void @_ZN12Test1_helperC1Ev(
48 // CHECK-NEXT: bitcast
49 // CHECK-NEXT: ret i8*
51 void test34(int cond) {
54 extern void test34_sink(id *);
55 test34_sink(cond ? &strong : 0);
56 test34_sink(cond ? &weak : 0);
58 // CHECK-LABEL: define void @_Z6test34i(
59 // CHECK: [[COND:%.*]] = alloca i32
60 // CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
61 // CHECK-NEXT: [[WEAK:%.*]] = alloca i8*
62 // CHECK-NEXT: [[TEMP1:%.*]] = alloca i8*
63 // CHECK-NEXT: [[TEMP2:%.*]] = alloca i8*
64 // CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8*
65 // CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1
66 // CHECK-NEXT: store i32
67 // CHECK-NEXT: [[STRONGP:%.*]] = bitcast i8** [[STRONG]] to i8*
68 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[STRONGP]])
69 // CHECK-NEXT: store i8* null, i8** [[STRONG]]
70 // CHECK-NEXT: [[WEAKP:%.*]] = bitcast i8** [[WEAK]] to i8*
71 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[WEAKP]])
72 // CHECK-NEXT: call i8* @llvm.objc.initWeak(i8** [[WEAK]], i8* null)
74 // CHECK-NEXT: [[T0:%.*]] = load i32, i32* [[COND]]
75 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
76 // CHECK: [[ARG:%.*]] = phi i8**
77 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
78 // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP1]]
79 // CHECK-NEXT: br i1 [[T0]],
80 // CHECK: [[T0:%.*]] = load i8*, i8** [[ARG]]
81 // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP1]]
82 // CHECK-NEXT: br label
83 // CHECK: [[W0:%.*]] = phi i8* [ [[T0]], {{%.*}} ], [ undef, {{%.*}} ]
84 // CHECK: call void @_Z11test34_sinkPU15__autoreleasingP11objc_object(i8** [[T1]])
85 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
86 // CHECK-NEXT: br i1 [[T0]],
87 // CHECK: [[T0:%.*]] = load i8*, i8** [[TEMP1]]
88 // CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retain(i8* [[T0]])
89 // CHECK-NEXT: call void (...) @llvm.objc.clang.arc.use(i8* [[W0]])
90 // CHECK-NEXT: [[T2:%.*]] = load i8*, i8** [[ARG]]
91 // CHECK-NEXT: store i8* [[T1]], i8** [[ARG]]
92 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T2]])
93 // CHECK-NEXT: br label
95 // CHECK: [[T0:%.*]] = load i32, i32* [[COND]]
96 // CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
97 // CHECK: [[ARG:%.*]] = phi i8**
98 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
99 // CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP2]]
100 // CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]]
101 // CHECK-NEXT: br i1 [[T0]],
102 // CHECK: [[T0:%.*]] = call i8* @llvm.objc.loadWeakRetained(i8** [[ARG]])
103 // CHECK-NEXT: store i8* [[T0]], i8** [[CONDCLEANUPSAVE]]
104 // CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]]
105 // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP2]]
106 // CHECK-NEXT: br label
107 // CHECK: call void @_Z11test34_sinkPU15__autoreleasingP11objc_object(i8** [[T1]])
108 // CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
109 // CHECK-NEXT: br i1 [[T0]],
110 // CHECK: [[T0:%.*]] = load i8*, i8** [[TEMP2]]
111 // CHECK-NEXT: call i8* @llvm.objc.storeWeak(i8** [[ARG]], i8* [[T0]])
112 // CHECK-NEXT: br label
114 // CHECK: call void @llvm.objc.destroyWeak(i8** [[WEAK]])
118 struct Test35_Helper {
119 static id makeObject1() __attribute__((ns_returns_retained));
120 id makeObject2() __attribute__((ns_returns_retained));
121 static id makeObject3();
125 // CHECK-LABEL: define void @_Z6test3513Test35_HelperPS_
126 void test35(Test35_Helper x0, Test35_Helper *x0p) {
127 // CHECK: call void @llvm.lifetime.start
128 // CHECK: call i8* @_ZN13Test35_Helper11makeObject1Ev
129 // CHECK-NOT: call i8* @llvm.objc.retain
130 id obj1 = Test35_Helper::makeObject1();
131 // CHECK: call void @llvm.lifetime.start
132 // CHECK: call i8* @_ZN13Test35_Helper11makeObject2Ev
133 // CHECK-NOT: call i8* @llvm.objc.retain
134 id obj2 = x0.makeObject2();
135 // CHECK: call void @llvm.lifetime.start
136 // CHECK: call i8* @_ZN13Test35_Helper11makeObject2Ev
137 // CHECK-NOT: call i8* @llvm.objc.retain
138 id obj3 = x0p->makeObject2();
139 id (Test35_Helper::*pmf)() __attribute__((ns_returns_retained))
140 = &Test35_Helper::makeObject2;
141 // CHECK: call void @llvm.lifetime.start
143 // CHECK-NOT: call i8* @llvm.objc.retain
144 id obj4 = (x0.*pmf)();
145 // CHECK: call void @llvm.lifetime.start
147 // CHECK-NOT: call i8* @llvm.objc.retain
148 id obj5 = (x0p->*pmf)();
150 // CHECK: call void @llvm.objc.release
151 // CHECK: call void @llvm.lifetime.end
152 // CHECK: call void @llvm.objc.release
153 // CHECK: call void @llvm.lifetime.end
154 // CHECK: call void @llvm.objc.release
155 // CHECK: call void @llvm.lifetime.end
156 // CHECK: call void @llvm.objc.release
157 // CHECK: call void @llvm.lifetime.end
158 // CHECK: call void @llvm.objc.release
159 // CHECK: call void @llvm.lifetime.end
160 // CHECK-NEXT: ret void
163 // CHECK-LABEL: define void @_Z7test35b13Test35_HelperPS_
164 void test35b(Test35_Helper x0, Test35_Helper *x0p) {
165 // CHECK: call void @llvm.lifetime.start
166 // CHECK: call i8* @_ZN13Test35_Helper11makeObject3Ev
167 // CHECK: call i8* @llvm.objc.retain
168 id obj1 = Test35_Helper::makeObject3();
169 // CHECK: call void @llvm.lifetime.start
170 // CHECK: call i8* @_ZN13Test35_Helper11makeObject4Ev
171 // CHECK: call i8* @llvm.objc.retain
172 id obj2 = x0.makeObject4();
173 // CHECK: call void @llvm.lifetime.start
174 // CHECK: call i8* @_ZN13Test35_Helper11makeObject4Ev
175 // CHECK: call i8* @llvm.objc.retain
176 id obj3 = x0p->makeObject4();
177 id (Test35_Helper::*pmf)() = &Test35_Helper::makeObject4;
178 // CHECK: call void @llvm.lifetime.start
180 // CHECK: call i8* @llvm.objc.retain
181 id obj4 = (x0.*pmf)();
182 // CHECK: call void @llvm.lifetime.start
184 // CHECK: call i8* @llvm.objc.retain
185 id obj5 = (x0p->*pmf)();
187 // CHECK: call void @llvm.objc.release
188 // CHECK: call void @llvm.lifetime.end
189 // CHECK: call void @llvm.objc.release
190 // CHECK: call void @llvm.lifetime.end
191 // CHECK: call void @llvm.lifetime.end
192 // CHECK: call void @llvm.objc.release
193 // CHECK: call void @llvm.lifetime.end
194 // CHECK: call void @llvm.objc.release
195 // CHECK: call void @llvm.lifetime.end
196 // CHECK: call void @llvm.objc.release
197 // CHECK: call void @llvm.lifetime.end
198 // CHECK-NEXT: ret void
201 // rdar://problem/9603128
202 // CHECK-LABEL: define i8* @_Z6test36P11objc_object(
204 // CHECK: llvm.objc.retain
205 // CHECK: llvm.objc.retain
206 // CHECK: llvm.objc.release
207 // CHECK: llvm.objc.autoreleaseReturnValue
211 // Template instantiation side of rdar://problem/9817306
217 template <class T> void test37(T *a) {
218 for (id x in a.array) {
222 extern template void test37<Test37>(Test37 *a);
223 template void test37<Test37>(Test37 *a);
224 // CHECK-LABEL: define weak_odr void @_Z6test37I6Test37EvPT_(
225 // CHECK: [[T0:%.*]] = call [[NSARRAY]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to [[NSARRAY]]* (i8*, i8*)*)(
226 // CHECK-NEXT: [[T1:%.*]] = bitcast [[NSARRAY]]* [[T0]] to i8*
227 // CHECK-NEXT: [[T2:%.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T1]])
228 // CHECK-NEXT: [[COLL:%.*]] = bitcast i8* [[T2]] to [[NSARRAY]]*
230 // Make sure it's not immediately released before starting the iteration.
231 // CHECK-NEXT: load i8*, i8** @OBJC_SELECTOR_REFERENCES_
232 // CHECK-NEXT: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
233 // CHECK-NEXT: @objc_msgSend
235 // This bitcast is for the mutation check.
236 // CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
237 // CHECK-NEXT: @objc_enumerationMutation
239 // This bitcast is for the 'next' message send.
240 // CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
241 // CHECK-NEXT: @objc_msgSend
243 // This bitcast is for the final release.
244 // CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
245 // CHECK-NEXT: call void @llvm.objc.release(i8* [[T0]])
248 void send_release() {
252 // CHECK-LABEL: define weak_odr void @_Z12send_releaseIiEvv(
253 // CHECK: call %0* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
254 // CHECK-NEXT: bitcast
255 // CHECK-NEXT: call i8* @llvm.objc.retainAutoreleasedReturnValue
256 // CHECK-NEXT: bitcast
257 // CHECK-NEXT: bitcast
258 // CHECK-NEXT: call void @llvm.objc.release
259 // CHECK-NEXT: ret void
260 template void send_release<int>();
263 Test37 *instantiate_init() {
264 Test37 *result = [[Test37 alloc] init];
268 // CHECK-LABEL: define weak_odr %2* @_Z16instantiate_initIiEP6Test37v
269 // CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
270 // CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
271 // CHECK: call i8* @llvm.objc.retain
272 // CHECK: call void @llvm.objc.release
273 // CHECK: call i8* @llvm.objc.autoreleaseReturnValue
274 template Test37* instantiate_init<int>();
276 // Just make sure that the AST invariants hold properly here,
277 // i.e. that we don't crash.
278 // The block should get bound in the full-expression outside
279 // the statement-expression.
280 template <class T> class Test38 {
282 ^{ (void) x; }, ({ x; });
285 // CHECK-LABEL: define weak_odr void @_ZN6Test38IiE4testEi(
286 template class Test38<int>;
288 // rdar://problem/11964832
295 class Test39 : Test39_base1, Test39_base2 { // base2 is at non-zero offset
298 id Test39::bar() { return 0; }
299 // Note lack of autorelease.
300 // CHECK-LABEL: define i8* @_ZThn8_N6Test393barEv(
301 // CHECK: call i8* @_ZN6Test393barEv(
302 // CHECK-NEXT: ret i8*
305 // Just a basic sanity-check that IR-gen still works after instantiating
306 // a non-dependent message send that requires writeback.
308 + (void) foo:(id *)errorPtr;
310 template <class T> void test40_helper() {
314 template void test40_helper<int>();
315 // CHECK-LABEL: define weak_odr void @_Z13test40_helperIiEvv()
316 // CHECK: [[X:%.*]] = alloca i8*
317 // CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
318 // CHECK-NEXT: [[XP:%.*]] = bitcast i8** [[X]] to i8*
319 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 8, i8* [[XP]])
320 // CHECK-NEXT: store i8* null, i8** [[X]]
321 // CHECK: [[T0:%.*]] = load i8*, i8** [[X]]
322 // CHECK-NEXT: store i8* [[T0]], i8** [[TEMP]]
323 // CHECK: @objc_msgSend
324 // CHECK-NEXT: [[T0:%.*]] = load i8*, i8** [[TEMP]]
325 // CHECK-NEXT: call i8* @llvm.objc.retain(i8* [[T0]])
327 // Check that moves out of __weak variables are compiled to use objc_moveWeak.
328 void test41(__weak id &&x) {
329 __weak id y = static_cast<__weak id &&>(x);
331 // CHECK-LABEL: define void @_Z6test41OU6__weakP11objc_object
332 // CHECK: [[X:%.*]] = alloca i8**
333 // CHECK: [[Y:%.*]] = alloca i8*
334 // CHECK: [[T0:%.*]] = load i8**, i8*** [[X]]
335 // CHECK-NEXT: call void @llvm.objc.moveWeak(i8** [[Y]], i8** [[T0]])
336 // CHECK-NEXT: call void @llvm.objc.destroyWeak(i8** [[Y]])