299 lines
11 KiB
Text
299 lines
11 KiB
Text
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fobjc-runtime-has-weak -fblocks -fobjc-arc -O2 -disable-llvm-optzns -o - %s | FileCheck %s
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struct NSFastEnumerationState;
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@interface NSArray
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- (unsigned long) countByEnumeratingWithState: (struct NSFastEnumerationState*) state
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objects: (id*) buffer
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count: (unsigned long) bufferSize;
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@end;
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NSArray *nsarray() { return 0; }
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// CHECK: define [[NSARRAY:%.*]]* @_Z7nsarrayv()
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void use(id);
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// rdar://problem/9315552
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// The analogous ObjC testcase test46 in arr.m.
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void test0(__weak id *wp, __weak volatile id *wvp) {
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extern id test0_helper(void);
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// TODO: this is sub-optimal, we should retain at the actual call site.
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// TODO: in the non-volatile case, we do not need to be reloading.
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// CHECK: [[T0:%.*]] = call i8* @_Z12test0_helperv()
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// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
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// CHECK-NEXT: [[T2:%.*]] = load i8*** {{%.*}}, align 8
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// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]])
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// CHECK-NEXT: [[T4:%.*]] = call i8* @objc_retain(i8* [[T3]])
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// CHECK-NEXT: store i8* [[T4]], i8**
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// CHECK-NEXT: call void @objc_release(i8* [[T1]])
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id x = *wp = test0_helper();
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// CHECK: [[T0:%.*]] = call i8* @_Z12test0_helperv()
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// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
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// CHECK-NEXT: [[T2:%.*]] = load i8*** {{%.*}}, align 8
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// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]])
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// CHECK-NEXT: [[T4:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T2]])
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// CHECK-NEXT: store i8* [[T4]], i8**
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// CHECK-NEXT: call void @objc_release(i8* [[T1]])
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id y = *wvp = test0_helper();
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}
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// rdar://problem/9320648
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struct Test1_helper { Test1_helper(); };
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@interface Test1 @end
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@implementation Test1 { Test1_helper x; } @end
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// CHECK: define internal i8* @"\01-[Test1 .cxx_construct]"(
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// CHECK: call void @_ZN12Test1_helperC1Ev(
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// CHECK-NEXT: load
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: ret i8*
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void test34(int cond) {
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__strong id strong;
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__weak id weak;
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extern void test34_sink(id *);
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test34_sink(cond ? &strong : 0);
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test34_sink(cond ? &weak : 0);
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// CHECK-LABEL: define void @_Z6test34i(
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// CHECK: [[COND:%.*]] = alloca i32
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// CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
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// CHECK-NEXT: [[WEAK:%.*]] = alloca i8*
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// CHECK-NEXT: [[TEMP1:%.*]] = alloca i8*
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// CHECK-NEXT: [[TEMP2:%.*]] = alloca i8*
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// CHECK-NEXT: [[CONDCLEANUPSAVE:%.*]] = alloca i8*
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// CHECK-NEXT: [[CONDCLEANUP:%.*]] = alloca i1
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// CHECK-NEXT: store i32
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// CHECK-NEXT: store i8* null, i8** [[STRONG]]
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// CHECK-NEXT: call i8* @objc_initWeak(i8** [[WEAK]], i8* null)
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// CHECK-NEXT: [[T0:%.*]] = load i32* [[COND]]
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// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
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// CHECK: [[ARG:%.*]] = phi i8**
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP1]]
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = load i8** [[ARG]]
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// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP1]]
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// CHECK-NEXT: br label
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// CHECK: [[W0:%.*]] = phi i8* [ [[T0]], {{%.*}} ], [ undef, {{%.*}} ]
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// CHECK: call void @_Z11test34_sinkPU15__autoreleasingP11objc_object(i8** [[T1]])
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = load i8** [[TEMP1]]
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// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
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// CHECK-NEXT: call void (...)* @clang.arc.use(i8* [[W0]])
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// CHECK-NEXT: [[T2:%.*]] = load i8** [[ARG]]
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// CHECK-NEXT: store i8* [[T1]], i8** [[ARG]]
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// CHECK-NEXT: call void @objc_release(i8* [[T2]])
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// CHECK-NEXT: br label
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// CHECK: [[T0:%.*]] = load i32* [[COND]]
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// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
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// CHECK: [[ARG:%.*]] = phi i8**
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP2]]
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// CHECK-NEXT: store i1 false, i1* [[CONDCLEANUP]]
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = call i8* @objc_loadWeakRetained(i8** [[ARG]])
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// CHECK-NEXT: store i8* [[T0]], i8** [[CONDCLEANUPSAVE]]
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// CHECK-NEXT: store i1 true, i1* [[CONDCLEANUP]]
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// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP2]]
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// CHECK-NEXT: br label
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// CHECK: call void @_Z11test34_sinkPU15__autoreleasingP11objc_object(i8** [[T1]])
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// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
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// CHECK-NEXT: br i1 [[T0]],
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// CHECK: [[T0:%.*]] = load i8** [[TEMP2]]
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// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[ARG]], i8* [[T0]])
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// CHECK-NEXT: br label
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// CHECK: call void @objc_destroyWeak(i8** [[WEAK]])
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// CHECK: ret void
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}
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struct Test35_Helper {
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static id makeObject1() __attribute__((ns_returns_retained));
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id makeObject2() __attribute__((ns_returns_retained));
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static id makeObject3();
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id makeObject4();
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};
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// CHECK-LABEL: define void @_Z6test3513Test35_HelperPS_
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void test35(Test35_Helper x0, Test35_Helper *x0p) {
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// CHECK: call i8* @_ZN13Test35_Helper11makeObject1Ev
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// CHECK-NOT: call i8* @objc_retain
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id obj1 = Test35_Helper::makeObject1();
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// CHECK: call i8* @_ZN13Test35_Helper11makeObject2Ev
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// CHECK-NOT: call i8* @objc_retain
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id obj2 = x0.makeObject2();
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// CHECK: call i8* @_ZN13Test35_Helper11makeObject2Ev
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// CHECK-NOT: call i8* @objc_retain
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id obj3 = x0p->makeObject2();
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id (Test35_Helper::*pmf)() __attribute__((ns_returns_retained))
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= &Test35_Helper::makeObject2;
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// CHECK: call i8* %
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// CHECK-NOT: call i8* @objc_retain
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id obj4 = (x0.*pmf)();
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// CHECK: call i8* %
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// CHECK-NOT: call i8* @objc_retain
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id obj5 = (x0p->*pmf)();
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK-NEXT: ret void
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}
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// CHECK-LABEL: define void @_Z7test35b13Test35_HelperPS_
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void test35b(Test35_Helper x0, Test35_Helper *x0p) {
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// CHECK: call i8* @_ZN13Test35_Helper11makeObject3Ev
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// CHECK: call i8* @objc_retain
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id obj1 = Test35_Helper::makeObject3();
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// CHECK: call i8* @_ZN13Test35_Helper11makeObject4Ev
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// CHECK: call i8* @objc_retain
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id obj2 = x0.makeObject4();
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// CHECK: call i8* @_ZN13Test35_Helper11makeObject4Ev
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// CHECK: call i8* @objc_retain
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id obj3 = x0p->makeObject4();
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id (Test35_Helper::*pmf)() = &Test35_Helper::makeObject4;
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// CHECK: call i8* %
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// CHECK: call i8* @objc_retain
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id obj4 = (x0.*pmf)();
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// CHECK: call i8* %
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// CHECK: call i8* @objc_retain
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id obj5 = (x0p->*pmf)();
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK: call void @objc_release
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// CHECK-NEXT: ret void
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}
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// rdar://problem/9603128
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// CHECK-LABEL: define i8* @_Z6test36P11objc_object(
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id test36(id z) {
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// CHECK: objc_retain
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// CHECK: objc_retain
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// CHECK: objc_release
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// CHECK: objc_autoreleaseReturnValue
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return z;
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}
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// Template instantiation side of rdar://problem/9817306
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@interface Test37
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+ alloc;
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- init;
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- (NSArray *) array;
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@end
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template <class T> void test37(T *a) {
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for (id x in a.array) {
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use(x);
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}
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}
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extern template void test37<Test37>(Test37 *a);
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template void test37<Test37>(Test37 *a);
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// CHECK-LABEL: define weak_odr void @_Z6test37I6Test37EvPT_(
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// CHECK: [[T0:%.*]] = call [[NSARRAY]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to [[NSARRAY]]* (i8*, i8*)*)(
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// CHECK-NEXT: [[T1:%.*]] = bitcast [[NSARRAY]]* [[T0]] to i8*
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// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
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// CHECK-NEXT: [[COLL:%.*]] = bitcast i8* [[T2]] to [[NSARRAY]]*
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// Make sure it's not immediately released before starting the iteration.
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// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
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// CHECK-NEXT: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
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// CHECK-NEXT: @objc_msgSend
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// This bitcast is for the mutation check.
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// CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
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// CHECK-NEXT: @objc_enumerationMutation
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// This bitcast is for the 'next' message send.
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// CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
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// CHECK-NEXT: @objc_msgSend
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// This bitcast is for the final release.
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// CHECK: [[T0:%.*]] = bitcast [[NSARRAY]]* [[COLL]] to i8*
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// CHECK-NEXT: call void @objc_release(i8* [[T0]])
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template<typename T>
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void send_release() {
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[Test37 array];
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}
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// CHECK-LABEL: define weak_odr void @_Z12send_releaseIiEvv(
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// CHECK: call %0* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call i8* @objc_retainAutoreleasedReturnValue
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call void @objc_release
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// CHECK-NEXT: ret void
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template void send_release<int>();
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template<typename T>
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Test37 *instantiate_init() {
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Test37 *result = [[Test37 alloc] init];
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return result;
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}
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// CHECK-LABEL: define weak_odr %2* @_Z16instantiate_initIiEP6Test37v
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// CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
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// CHECK: call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
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// CHECK: call i8* @objc_retain
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// CHECK: call void @objc_release
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// CHECK: call i8* @objc_autoreleaseReturnValue
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template Test37* instantiate_init<int>();
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// Just make sure that the AST invariants hold properly here,
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// i.e. that we don't crash.
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// The block should get bound in the full-expression outside
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// the statement-expression.
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template <class T> class Test38 {
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void test(T x) {
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^{ (void) x; }, ({ x; });
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}
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};
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// CHECK-LABEL: define weak_odr void @_ZN6Test38IiE4testEi(
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template class Test38<int>;
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// rdar://problem/11964832
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class Test39_base1 {
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virtual void foo();
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};
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class Test39_base2 {
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virtual id bar();
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};
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class Test39 : Test39_base1, Test39_base2 { // base2 is at non-zero offset
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virtual id bar();
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};
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id Test39::bar() { return 0; }
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// Note lack of autorelease.
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// CHECK-LABEL: define i8* @_ZThn8_N6Test393barEv(
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// CHECK: call i8* @_ZN6Test393barEv(
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// CHECK-NEXT: ret i8*
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// rdar://13617051
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// Just a basic sanity-check that IR-gen still works after instantiating
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// a non-dependent message send that requires writeback.
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@interface Test40
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+ (void) foo:(id *)errorPtr;
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@end
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template <class T> void test40_helper() {
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id x;
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[Test40 foo: &x];
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};
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template void test40_helper<int>();
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// CHECK-LABEL: define weak_odr void @_Z13test40_helperIiEvv()
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// CHECK: [[X:%.*]] = alloca i8*
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// CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
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// CHECK-NEXT: store i8* null, i8** [[X]]
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// CHECK: [[T0:%.*]] = load i8** [[X]]
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// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP]]
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// CHECK: @objc_msgSend
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// CHECK-NEXT: [[T0:%.*]] = load i8** [[TEMP]]
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// CHECK-NEXT: call i8* @objc_retain(i8* [[T0]])
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