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llvm-project/clang/test/CodeGenObjC/arc.m

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Objective-C
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -O2 -disable-llvm-optzns -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-runtime-has-weak -o - %s | FileCheck -check-prefix=CHECK-GLOBALS %s
// CHECK: define void @test0
void test0(id x) {
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{.*}})
// CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
// CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[TMP]])
// CHECK-NEXT: ret void
// rdar://12040837
// CHECK: declare extern_weak i8* @objc_retain(i8*) nonlazybind
// CHECK: declare extern_weak void @objc_release(i8*) nonlazybind
}
// CHECK: define i8* @test1(i8*
id test1(id x) {
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: [[Y:%.*]] = alloca i8*
// CHECK-NEXT: alloca i32
// CHECK-NEXT: [[PARM:%.*]] = call i8* @objc_retain(i8* {{%.*}})
// CHECK-NEXT: store i8* [[PARM]], i8** [[X]]
// CHECK-NEXT: store i8* null, i8** [[Y]]
// CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: store i32
// CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[RET]])
// CHECK-NEXT: ret i8* [[T1]]
id y;
return y;
}
@interface Test2
+ (void) class_method;
- (void) inst_method;
@end
@implementation Test2
// The self pointer of a class method is not retained.
// CHECK: define internal void @"\01+[Test2 class_method]"
// CHECK: alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret void
+ (void) class_method {}
// The self pointer of an instance method is not retained.
// CHECK: define internal void @"\01-[Test2 inst_method]"
// CHECK: alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret void
- (void) inst_method {}
@end
@interface Test3
+ (id) alloc;
- (id) initWith: (int) x;
- (id) copy;
@end
// CHECK: define void @test3_unelided()
void test3_unelided() {
extern void test3_helper(void);
// CHECK: [[X:%.*]] = alloca [[TEST3:%.*]]*
// CHECK-NEXT: store [[TEST3]]* null, [[TEST3]]** [[X]], align
Test3 *x;
// Call to +alloc.
// CHECK-NEXT: load {{.*}}* @"\01L_OBJC_CLASSLIST_REFERENCES_
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
// CHECK-NEXT: bitcast
// CHECK-NEXT: bitcast
// CHECK-NEXT: call void @objc_release(i8*
[Test3 alloc];
// CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]** [[X]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8*
// CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[T1]],
// CHECK-NEXT: call void @objc_release(i8* [[COPY]]) nounwind
[x copy];
// CHECK-NEXT: [[T0:%.*]] = load [[TEST3]]** [[X]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST3]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
// CHECK-NEXT: ret void
}
// CHECK: define void @test3()
void test3() {
// CHECK: [[X:%.*]] = alloca i8*
id x = [[Test3 alloc] initWith: 5];
// Call to +alloc.
// CHECK-NEXT: load {{.*}}* @"\01L_OBJC_CLASSLIST_REFERENCES_
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
// CHECK-NEXT: bitcast
// Call to -initWith: with elided retain of consumed argument.
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8*
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[INIT:%.*]] = bitcast
// Assignment for initialization, retention elided.
// CHECK-NEXT: store i8* [[INIT]], i8** [[X]]
// Call to -copy.
// CHECK-NEXT: [[V:%.*]] = load i8** [[X]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[COPY:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend {{.*}})(i8* [[V]],
// Assignment to x.
// CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
// CHECK-NEXT: store i8* [[COPY]], i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
x = [x copy];
// Cleanup for x.
// CHECK-NEXT: [[TMP:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
// CHECK-NEXT: ret void
}
// CHECK: define i8* @test4()
id test4() {
// Call to +alloc.
// CHECK: load {{.*}}* @"\01L_OBJC_CLASSLIST_REFERENCES_
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[ALLOC:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
// CHECK-NEXT: [[ALLOC:%.*]] = bitcast
// Call to -initWith: with elided retain of consumed argument.
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[ALLOC:%.*]] = bitcast
// CHECK-NEXT: [[INIT:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i32)*)(i8* [[ALLOC]],
// Initialization of return value, occuring within full-expression.
// Retain/release elided.
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[INIT:%.*]] = bitcast
// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[INIT]])
// CHECK-NEXT: ret i8* [[RET]]
return [[Test3 alloc] initWith: 6];
}
@interface Test5 {
@public
id var;
}
@end
// CHECK: define void @test5
void test5(Test5 *x, id y) {
// Prologue.
// CHECK: [[X:%.*]] = alloca [[TEST5:%.*]]*,
// CHECK-NEXT: [[Y:%.*]] = alloca i8*
// CHECK-NEXT: bitcast [[TEST5]]* {{%.*}} to i8*
// CHECK-NEXT: call i8* @objc_retain
// CHECK-NEXT: [[PARMX:%.*]] = bitcast i8* {{%.*}} to [[TEST5]]*
// CHECK-NEXT: store [[TEST5]]* [[PARMX]], [[TEST5]]** [[X]]
// CHECK-NEXT: call i8* @objc_retain
// CHECK-NEXT: store
// CHECK-NEXT: load [[TEST5]]** [[X]]
// CHECK-NEXT: load i64* @"OBJC_IVAR_$_Test5.var"
// CHECK-NEXT: bitcast
// CHECK-NEXT: getelementptr
// CHECK-NEXT: [[VAR:%.*]] = bitcast
// CHECK-NEXT: [[TMP:%.*]] = load i8** [[VAR]]
// CHECK-NEXT: store i8* null, i8** [[VAR]]
// CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
x->var = 0;
// CHECK-NEXT: [[YVAL:%.*]] = load i8** [[Y]]
// CHECK-NEXT: load [[TEST5]]** [[X]]
// CHECK-NEXT: load i64* @"OBJC_IVAR_$_Test5.var"
// CHECK-NEXT: bitcast
// CHECK-NEXT: getelementptr
// CHECK-NEXT: [[VAR:%.*]] = bitcast
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retain(i8* [[YVAL]]) nounwind
// CHECK-NEXT: [[TMP:%.*]] = load i8** [[VAR]]
// CHECK-NEXT: store i8* [[T0]], i8** [[VAR]]
// CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
x->var = y;
// Epilogue.
// CHECK-NEXT: [[TMP:%.*]] = load i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[TMP]]) nounwind
// CHECK-NEXT: [[T0:%.*]] = load [[TEST5]]** [[X]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST5]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
// CHECK-NEXT: ret void
}
id test6_helper(void) __attribute__((ns_returns_retained));
// CHECK: define void @test6()
void test6() {
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: [[CALL:%.*]] = call i8* @test6_helper()
// CHECK-NEXT: store i8* [[CALL]], i8** [[X]]
// CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: ret void
id x = test6_helper();
}
void test7_helper(id __attribute__((ns_consumed)));
// CHECK: define void @test7()
void test7() {
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: store i8* null, i8** [[X]]
// CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]]) nounwind
// CHECK-NEXT: call void @test7_helper(i8* [[T1]])
// CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: ret void
id x;
test7_helper(x);
}
id test8_helper(void) __attribute__((ns_returns_retained));
void test8() {
__unsafe_unretained id x = test8_helper();
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: [[T0:%.*]] = call i8* @test8_helper()
// CHECK-NEXT: store i8* [[T0]], i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
// CHECK-NOT: imprecise_release
// CHECK-NEXT: ret void
}
id test9_helper(void) __attribute__((ns_returns_retained));
void test9() {
id x __attribute__((objc_precise_lifetime)) = test9_helper();
x = 0;
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: [[CALL:%.*]] = call i8* @test9_helper()
// CHECK-NEXT: store i8* [[CALL]], i8** [[X]]
// CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
// CHECK-NEXT: store i8* null, i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
// CHECK-NOT: clang.imprecise_release
// CHECK-NEXT: ret void
}
@interface Test10
@property (retain) Test10 *me;
@end
void test10() {
Test10 *x;
id y = x.me.me;
// CHECK: define void @test10()
// CHECK: [[X:%.*]] = alloca [[TEST10:%.*]]*, align
// CHECK-NEXT: [[Y:%.*]] = alloca i8*, align
// CHECK-NEXT: store [[TEST10]]* null, [[TEST10]]** [[X]]
// CHECK-NEXT: load [[TEST10]]** [[X]], align
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_{{[0-9]*}}"
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[V:%.*]] = bitcast i8* [[T2]] to [[TEST10]]*
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_{{[0-9]*}}"
// CHECK-NEXT: bitcast
// CHECK-NEXT: [[T0:%.*]] = call [[TEST10]]* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST10]]*
// CHECK-NEXT: [[T4:%.*]] = bitcast [[TEST10]]* [[T3]] to i8*
// CHECK-NEXT: store i8* [[T4]], i8** [[Y]]
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST10]]* [[V]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: [[T0:%.*]] = load [[TEST10]]** [[X]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST10]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: ret void
}
void test11(id (*f)(void) __attribute__((ns_returns_retained))) {
// CHECK: define void @test11(
// CHECK: [[F:%.*]] = alloca i8* ()*, align
// CHECK-NEXT: [[X:%.*]] = alloca i8*, align
// CHECK-NEXT: store i8* ()* {{%.*}}, i8* ()** [[F]], align
// CHECK-NEXT: [[T0:%.*]] = load i8* ()** [[F]], align
// CHECK-NEXT: [[T1:%.*]] = call i8* [[T0]]()
// CHECK-NEXT: store i8* [[T1]], i8** [[X]], align
// CHECK-NEXT: [[T3:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T3]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: ret void
id x = f();
}
void test12(void) {
extern id test12_helper(void);
// CHECK: define void @test12()
// CHECK: [[X:%.*]] = alloca i8*, align
// CHECK-NEXT: [[Y:%.*]] = alloca i8*, align
__weak id x = test12_helper();
// CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: call i8* @objc_initWeak(i8** [[X]], i8* [[T1]])
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
x = test12_helper();
// CHECK-NEXT: [[T0:%.*]] = call i8* @test12_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[X]], i8* [[T1]])
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
id y = x;
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_loadWeakRetained(i8** [[X]])
// CHECK-NEXT: store i8* [[T2]], i8** [[Y]], align
// CHECK-NEXT: [[T4:%.*]] = load i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[T4]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]])
// CHECK-NEXT: ret void
}
// Indirect consuming calls.
void test13(void) {
// CHECK: define void @test13()
// CHECK: [[X:%.*]] = alloca i8*, align
// CHECK-NEXT: store i8* null, i8** [[X]], align
id x;
typedef void fnty(id __attribute__((ns_consumed)));
extern fnty *test13_func;
// CHECK-NEXT: [[FN:%.*]] = load void (i8*)** @test13_func, align
// CHECK-NEXT: [[X_VAL:%.*]] = load i8** [[X]], align
// CHECK-NEXT: [[X_TMP:%.*]] = call i8* @objc_retain(i8* [[X_VAL]]) nounwind
// CHECK-NEXT: call void [[FN]](i8* [[X_TMP]])
test13_func(x);
extern fnty ^test13_block;
// CHECK-NEXT: [[TMP:%.*]] = load void (i8*)** @test13_block, align
// CHECK-NEXT: [[BLOCK:%.*]] = bitcast void (i8*)* [[TMP]] to [[BLOCKTY:%.*]]*
// CHECK-NEXT: [[BLOCK_FN_PTR:%.*]] = getelementptr inbounds [[BLOCKTY]]* [[BLOCK]], i32 0, i32 3
// CHECK-NEXT: [[BLOCK_OPAQUE:%.*]] = bitcast [[BLOCKTY]]* [[BLOCK]] to i8*
// CHECK-NEXT: [[X_VAL:%.*]] = load i8** [[X]], align
// CHECK-NEXT: [[X_TMP:%.*]] = call i8* @objc_retain(i8* [[X_VAL]]) nounwind
// CHECK-NEXT: [[BLOCK_FN_TMP:%.*]] = load i8** [[BLOCK_FN_PTR]]
// CHECK-NEXT: [[BLOCK_FN:%.*]] = bitcast i8* [[BLOCK_FN_TMP]] to void (i8*, i8*)*
// CHECK-NEXT: call void [[BLOCK_FN]](i8* [[BLOCK_OPAQUE]], i8* [[X_TMP]])
test13_block(x);
// CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
// CHECK-NEXT: ret void
}
@interface Test16_super @end
@interface Test16 : Test16_super {
id z;
}
@property (assign) int x;
@property (retain) id y;
- (void) dealloc;
@end
@implementation Test16
@synthesize x;
@synthesize y;
- (void) dealloc {
// CHECK: define internal void @"\01-[Test16 dealloc]"(
// CHECK: [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align
// CHECK-NEXT: alloca
// CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]** [[SELF]]
// Call super.
// CHECK-NEXT: [[BASE2:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
// CHECK-NEXT: [[T0:%.*]] = getelementptr
// CHECK-NEXT: store i8* [[BASE2]], i8** [[T0]]
// CHECK-NEXT: load {{%.*}}** @"\01L_OBJC_CLASSLIST_SUP_REFS_$_
// CHECK-NEXT: bitcast
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: call void bitcast (i8* ({{.*}})* @objc_msgSendSuper2 to void (
// CHECK-NEXT: ret void
}
// .cxx_destruct
// CHECK: define internal void @"\01-[Test16 .cxx_destruct]"(
// CHECK: [[SELF:%.*]] = alloca [[TEST16:%.*]]*, align
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align
// CHECK-NEXT: store [[TEST16]]* {{%.*}}, [[TEST16]]** [[SELF]], align
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[BASE:%.*]] = load [[TEST16]]** [[SELF]]
// Destroy y.
// CHECK-NEXT: [[Y_OFF:%.*]] = load i64* @"OBJC_IVAR_$_Test16.y"
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[Y_OFF]]
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T2]], i8* null) nounwind
// Destroy z.
// CHECK-NEXT: [[Z_OFF:%.*]] = load i64* @"OBJC_IVAR_$_Test16.z"
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST16]]* [[BASE]] to i8*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[Z_OFF]]
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T2]], i8* null) nounwind
// CHECK-NEXT: ret void
@end
// This shouldn't crash.
@interface Test17A
@property (assign) int x;
@end
@interface Test17B : Test17A
@end
@implementation Test17B
- (int) x { return super.x + 1; }
@end
void test19() {
// CHECK: define void @test19()
// CHECK: [[X:%.*]] = alloca [5 x i8*], align 16
// CHECK-NEXT: [[T0:%.*]] = bitcast [5 x i8*]* [[X]] to i8*
// CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 40, i32 16, i1 false)
id x[5];
extern id test19_helper(void);
x[2] = test19_helper();
// CHECK-NEXT: [[CALL:%.*]] = call i8* @test19_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]]) nounwind
// CHECK-NEXT: [[SLOT:%.*]] = getelementptr inbounds [5 x i8*]* [[X]], i32 0, i64 2
// CHECK-NEXT: [[T0:%.*]] = load i8** [[SLOT]]
// CHECK-NEXT: store i8* [[T1]], i8** [[SLOT]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [5 x i8*]* [[X]], i32 0, i32 0
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[BEGIN]], i64 5
// CHECK-NEXT: br label
// CHECK: [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ]
// CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8** [[AFTER]], i64 -1
// CHECK-NEXT: [[T0:%.*]] = load i8** [[CUR]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
// CHECK-NEXT: br i1 [[EQ]],
// CHECK: ret void
}
void test20(unsigned n) {
// CHECK: define void @test20
// CHECK: [[N:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8*
// CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4
id x[n];
// Capture the VLA size.
// CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4
// CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64
// Save the stack pointer.
// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave()
// CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]]
// Allocate the VLA.
// CHECK-NEXT: [[VLA:%.*]] = alloca i8*, i64 [[DIM]], align 16
// Zero-initialize.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8** [[VLA]] to i8*
// CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[DIM]], 8
// CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 [[T1]], i32 8, i1 false)
// Destroy.
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[VLA]], i64 [[DIM]]
// CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[VLA]], [[END]]
// CHECK-NEXT: br i1 [[EMPTY]]
// CHECK: [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8** [[AFTER]], i64 -1
// CHECK-NEXT: [[T0:%.*]] = load i8** [[CUR]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[VLA]]
// CHECK-NEXT: br i1 [[EQ]],
// CHECK: [[T0:%.*]] = load i8** [[SAVED_STACK]]
// CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]])
// CHECK-NEXT: ret void
}
void test21(unsigned n) {
// CHECK: define void @test21
// CHECK: [[N:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[SAVED_STACK:%.*]] = alloca i8*
// CHECK-NEXT: store i32 {{%.*}}, i32* [[N]], align 4
id x[2][n][3];
// Capture the VLA size.
// CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4
// CHECK-NEXT: [[DIM:%.*]] = zext i32 [[T0]] to i64
// CHECK-NEXT: [[T0:%.*]] = call i8* @llvm.stacksave()
// CHECK-NEXT: store i8* [[T0]], i8** [[SAVED_STACK]]
// Allocate the VLA.
// CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]]
// CHECK-NEXT: [[VLA:%.*]] = alloca [3 x i8*], i64 [[T0]], align 16
// Zero-initialize.
// CHECK-NEXT: [[T0:%.*]] = bitcast [3 x i8*]* [[VLA]] to i8*
// CHECK-NEXT: [[T1:%.*]] = mul nuw i64 2, [[DIM]]
// CHECK-NEXT: [[T2:%.*]] = mul nuw i64 [[T1]], 24
// CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* [[T0]], i8 0, i64 [[T2]], i32 8, i1 false)
// Destroy.
// CHECK-NEXT: [[T0:%.*]] = mul nuw i64 2, [[DIM]]
// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [3 x i8*]* [[VLA]], i32 0, i32 0
// CHECK-NEXT: [[T1:%.*]] = mul nuw i64 [[T0]], 3
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[BEGIN]], i64 [[T1]]
// CHECK-NEXT: [[EMPTY:%.*]] = icmp eq i8** [[BEGIN]], [[END]]
// CHECK-NEXT: br i1 [[EMPTY]]
// CHECK: [[AFTER:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[CUR:%.*]] = getelementptr inbounds i8** [[AFTER]], i64 -1
// CHECK-NEXT: [[T0:%.*]] = load i8** [[CUR]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: [[EQ:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
// CHECK-NEXT: br i1 [[EQ]],
// CHECK: [[T0:%.*]] = load i8** [[SAVED_STACK]]
// CHECK-NEXT: call void @llvm.stackrestore(i8* [[T0]])
// CHECK-NEXT: ret void
}
void test22(_Bool cond) {
id test22_helper(void) __attribute__((ns_returns_retained));
// CHECK: define void @test22(
// CHECK: [[COND:%.*]] = alloca i8,
// CHECK-NEXT: [[X:%.*]] = alloca i8*,
// CHECK-NEXT: [[RELVAL:%.*]] = alloca i8*
// CHECK-NEXT: [[RELCOND:%.*]] = alloca i1
// CHECK-NEXT: zext
// CHECK-NEXT: store
// CHECK-NEXT: [[T0:%.*]] = load i8* [[COND]]
// CHECK-NEXT: [[T1:%.*]] = trunc i8 [[T0]] to i1
// CHECK-NEXT: store i1 false, i1* [[RELCOND]]
// CHECK-NEXT: br i1 [[T1]],
// CHECK: br label
// CHECK: [[CALL:%.*]] = call i8* @test22_helper()
// CHECK-NEXT: store i8* [[CALL]], i8** [[RELVAL]]
// CHECK-NEXT: store i1 true, i1* [[RELCOND]]
// CHECK-NEXT: br label
// CHECK: [[T0:%.*]] = phi i8* [ null, {{%.*}} ], [ [[CALL]], {{%.*}} ]
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]]) nounwind
// CHECK-NEXT: store i8* [[T1]], i8** [[X]],
// CHECK-NEXT: [[REL:%.*]] = load i1* [[RELCOND]]
// CHECK-NEXT: br i1 [[REL]],
// CHECK: [[T0:%.*]] = load i8** [[RELVAL]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
// CHECK-NEXT: br label
// CHECK: [[T0:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind
// CHECK-NEXT: ret void
id x = (cond ? 0 : test22_helper());
}
// rdar://problem/8922540
// Note that we no longer emit .release_ivars flags.
// CHECK-GLOBALS: @"\01l_OBJC_CLASS_RO_$_Test23" = internal global [[RO_T:%.*]] { i32 134,
@interface Test23 { id x; } @end
@implementation Test23 @end
// CHECK-GLOBALS: @"\01l_OBJC_CLASS_RO_$_Test24" = internal global [[RO_T:%.*]] { i32 130,
@interface Test24 {} @end
@implementation Test24 @end
// rdar://problem/8941012
@interface Test26 { id x[4]; } @end
@implementation Test26 @end
// CHECK: define internal void @"\01-[Test26 .cxx_destruct]"(
// CHECK: [[SELF:%.*]] = load [[TEST26:%.*]]**
// CHECK-NEXT: [[OFFSET:%.*]] = load i64* @"OBJC_IVAR_$_Test26.x"
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST26]]* [[SELF]] to i8*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[OFFSET]]
// CHECK-NEXT: [[X:%.*]] = bitcast i8* [[T1]] to [4 x i8*]*
// CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x i8*]* [[X]], i32 0, i32 0
// CHECK-NEXT: [[END:%.*]] = getelementptr inbounds i8** [[BEGIN]], i64 4
// CHECK-NEXT: br label
// CHECK: [[PAST:%.*]] = phi i8** [ [[END]], {{%.*}} ], [ [[CUR:%.*]], {{%.*}} ]
// CHECK-NEXT: [[CUR]] = getelementptr inbounds i8** [[PAST]], i64 -1
// CHECK-NEXT: call void @objc_storeStrong(i8** [[CUR]], i8* null)
// CHECK-NEXT: [[ISDONE:%.*]] = icmp eq i8** [[CUR]], [[BEGIN]]
// CHECK-NEXT: br i1 [[ISDONE]],
// CHECK: ret void
// Check that 'init' retains self.
@interface Test27
- (id) init;
@end
@implementation Test27
- (id) init { return self; }
// CHECK: define internal i8* @"\01-[Test27 init]"
// CHECK: [[SELF:%.*]] = alloca [[TEST27:%.*]]*,
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*,
// CHECK-NEXT: [[DEST:%.*]] = alloca i32
// CHECK-NEXT: store [[TEST27]]* {{%.*}}, [[TEST27]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8*
// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: store i32 {{[0-9]+}}, i32* [[DEST]]
// CHECK-NEXT: [[T0:%.*]] = load [[TEST27]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST27]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: ret i8* [[RET]]
@end
// rdar://problem/8087194
@interface Test28
@property (copy) id prop;
@end
@implementation Test28
@synthesize prop;
@end
// CHECK: define internal void @"\01-[Test28 .cxx_destruct]"
// CHECK: [[SELF:%.*]] = load [[TEST28:%.*]]**
// CHECK-NEXT: [[OFFSET:%.*]] = load i64* @"OBJC_IVAR_$_Test28.prop"
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST28]]* [[SELF]] to i8*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8* [[T0]], i64 [[OFFSET]]
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to i8**
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T2]], i8* null)
// CHECK-NEXT: ret void
@interface Test29_super
- (id) initWithAllocator: (id) allocator;
@end
@interface Test29 : Test29_super
- (id) init;
- (id) initWithAllocator: (id) allocator;
@end
@implementation Test29
static id _test29_allocator = 0;
- (id) init {
// CHECK: define internal i8* @"\01-[Test29 init]"([[TEST29:%.*]]* {{%.*}},
// CHECK: [[SELF:%.*]] = alloca [[TEST29]]*, align 8
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[CLEANUP:%.*]] = alloca i32
// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// Evaluate arguments. Note that the send argument is evaluated
// before the zeroing of self.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]], align 8
// CHECK-NEXT: [[T1:%.*]] = load i8** @_test29_allocator, align 8
// Implicit null of 'self', i.e. direct transfer of ownership.
// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]]
// Actual message send.
// CHECK-NEXT: [[T2:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T3:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: [[CALL:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T3]], i8* [[T2]], i8* [[T1]])
// Implicit write of result back into 'self'. This is not supposed to
// be detectable because we're supposed to ban accesses to the old
// self value past the delegate init call.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]]
// Return statement.
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[CALL]]
// CHECK-NEXT: [[CALL:%.*]] = bitcast
// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[CALL]]) nounwind
// CHECK-NEXT: store i32 1, i32* [[CLEANUP]]
// Cleanup.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
// Return.
// CHECK-NEXT: ret i8* [[RET]]
return [self initWithAllocator: _test29_allocator];
}
- (id) initWithAllocator: (id) allocator {
// CHECK: define internal i8* @"\01-[Test29 initWithAllocator:]"(
// CHECK: [[SELF:%.*]] = alloca [[TEST29]]*, align 8
// CHECK-NEXT: [[CMD:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[ALLOCATOR:%.*]] = alloca i8*, align 8
// CHECK-NEXT: alloca
// CHECK-NEXT: [[CLEANUP:%.*]] = alloca i32
// CHECK-NEXT: store [[TEST29]]* {{%.*}}, [[TEST29]]** [[SELF]]
// CHECK-NEXT: store i8* {{%.*}}, i8** [[CMD]]
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retain(i8* {{%.*}})
// CHECK-NEXT: store i8* [[T0]], i8** [[ALLOCATOR]]
// Evaluate arguments. Note that the send argument is evaluated
// before the zeroing of self.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i8** [[ALLOCATOR]], align 8
// Implicit null of 'self', i.e. direct transfer of ownership.
// CHECK-NEXT: store [[TEST29]]* null, [[TEST29]]** [[SELF]]
// Actual message send.
// CHECK: [[CALL:%.*]] = call {{.*}} @objc_msgSendSuper2
// Implicit write of result back into 'self'. This is not supposed to
// be detectable because we're supposed to ban accesses to the old
// self value past the delegate init call.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
// CHECK-NEXT: store [[TEST29]]* [[T0]], [[TEST29]]** [[SELF]]
// Assignment.
// CHECK-NEXT: [[T0:%.*]] = bitcast i8* [[CALL]] to [[TEST29]]*
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]]) nounwind
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST29]]*
// CHECK-NEXT: [[T4:%.*]] = load [[TEST29]]** [[SELF]], align
// CHECK-NEXT: store [[TEST29]]* [[T3]], [[TEST29]]** [[SELF]], align
// CHECK-NEXT: [[T5:%.*]] = bitcast [[TEST29]]* [[T4]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T5]])
// Return statement.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T1]]) nounwind
// CHECK-NEXT: store i32 1, i32* [[CLEANUP]]
// Cleanup.
// CHECK-NEXT: [[T0:%.*]] = load i8** [[ALLOCATOR]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: [[T0:%.*]] = load [[TEST29]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST29]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
// Return.
// CHECK-NEXT: ret i8* [[RET]]
self = [super initWithAllocator: allocator];
return self;
}
@end
typedef struct Test30_helper Test30_helper;
@interface Test30
- (id) init;
- (Test30_helper*) initHelper;
@end
@implementation Test30 {
char *helper;
}
- (id) init {
// CHECK: define internal i8* @"\01-[Test30 init]"([[TEST30:%.*]]* {{%.*}},
// CHECK: [[RET:%.*]] = alloca [[TEST30]]*
// CHECK-NEXT: alloca i8*
// CHECK-NEXT: alloca i32
// CHECK-NEXT: store [[TEST30]]* {{%.*}}, [[TEST30]]** [[SELF]]
// CHECK-NEXT: store
// Call.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
// CHECK-NEXT: [[CALL:%.*]] = call [[TEST30_HELPER:%.*]]* bitcast {{.*}} @objc_msgSend {{.*}}(i8* [[T2]], i8* [[T1]])
// Assignment.
// CHECK-NEXT: [[T0:%.*]] = bitcast [[TEST30_HELPER]]* [[CALL]] to i8*
// CHECK-NEXT: [[T1:%.*]] = load [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[IVAR:%.*]] = load i64* @"OBJC_IVAR_$_Test30.helper"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST30]]* [[T1]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[IVAR]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT#: [[T5:%.*]] = load i8** [[T4]]
// CHECK-NEXT#: [[T6:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT#: call void @objc_release(i8* [[T5]])
// CHECK-NEXT: store i8* [[T0]], i8** [[T4]]
// Return.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
// CHECK-NEXT: [[RET:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: store i32 1
// Cleanup.
// CHECK-NEXT: [[T0:%.*]] = load [[TEST30]]** [[SELF]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST30]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// Epilogue.
// CHECK-NEXT: ret i8* [[RET]]
self->helper = [self initHelper];
return self;
}
- (Test30_helper*) initHelper {
// CHECK: define internal [[TEST30_HELPER]]* @"\01-[Test30 initHelper]"(
// CHECK: alloca
// CHECK-NEXT: alloca
// CHECK-NEXT: store
// CHECK-NEXT: store
// CHECK-NEXT: ret [[TEST30_HELPER]]* null
return 0;
}
@end
__attribute__((ns_returns_retained)) id test32(void) {
// CHECK: define i8* @test32()
// CHECK: [[CALL:%.*]] = call i8* @test32_helper()
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]])
// CHECK-NEXT: ret i8* [[T0]]
extern id test32_helper(void);
return test32_helper();
}
@class Test33_a;
@interface Test33
- (void) give: (Test33_a **) x;
- (void) take: (Test33_a **) x;
- (void) giveStrong: (out __strong Test33_a **) x;
- (void) takeStrong: (inout __strong Test33_a **) x;
- (void) giveOut: (out Test33_a **) x;
@end
void test33(Test33 *ptr) {
Test33_a *a;
[ptr give: &a];
[ptr take: &a];
[ptr giveStrong: &a];
[ptr takeStrong: &a];
[ptr giveOut: &a];
// CHECK: define void @test33([[TEST33:%.*]]*
// CHECK: [[PTR:%.*]] = alloca [[TEST33]]*
// CHECK-NEXT: [[A:%.*]] = alloca [[A_T:%.*]]*
// CHECK-NEXT: [[TEMP0:%.*]] = alloca [[A_T]]*
// CHECK-NEXT: [[TEMP1:%.*]] = alloca [[A_T]]*
// CHECK-NEXT: [[TEMP2:%.*]] = alloca [[A_T]]*
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_retain
// CHECK-NEXT: bitcast
// CHECK-NEXT: store
// CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[A]]
// CHECK-NEXT: load [[TEST33]]** [[PTR]]
// CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[A]]
// CHECK-NEXT: store [[A_T]]* [[T0]], [[A_T]]** [[TEMP0]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP0]])
// CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[TEMP0]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
// CHECK-NEXT: [[T4:%.*]] = load [[A_T]]** [[A]]
// CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
// CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T5]])
// CHECK-NEXT: load [[TEST33]]** [[PTR]]
// CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[A]]
// CHECK-NEXT: store [[A_T]]* [[T0]], [[A_T]]** [[TEMP1]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP1]])
// CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[TEMP1]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
// CHECK-NEXT: [[T4:%.*]] = load [[A_T]]** [[A]]
// CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
// CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T5]])
// CHECK-NEXT: load [[TEST33]]** [[PTR]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]])
// CHECK-NEXT: load [[TEST33]]** [[PTR]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[A]])
// 'out'
// CHECK-NEXT: load [[TEST33]]** [[PTR]]
// CHECK-NEXT: store [[A_T]]* null, [[A_T]]** [[TEMP2]]
// CHECK-NEXT: load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_msgSend{{.*}}, [[A_T]]** [[TEMP2]])
// CHECK-NEXT: [[T0:%.*]] = load [[A_T]]** [[TEMP2]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[A_T]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[A_T]]*
// CHECK-NEXT: [[T4:%.*]] = load [[A_T]]** [[A]]
// CHECK-NEXT: store [[A_T]]* [[T3]], [[A_T]]** [[A]]
// CHECK-NEXT: [[T5:%.*]] = bitcast [[A_T]]* [[T4]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T5]])
// CHECK-NEXT: load
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_release
// CHECK-NEXT: load
// CHECK-NEXT: bitcast
// CHECK-NEXT: objc_release
// CHECK-NEXT: ret void
}
void test34(int cond) {
__strong id strong;
__weak id weak;
extern void test34_sink(id *);
test34_sink(cond ? &strong : 0);
test34_sink(cond ? &weak : 0);
// CHECK: define void @test34(
// CHECK: [[COND:%.*]] = alloca i32
// CHECK-NEXT: [[STRONG:%.*]] = alloca i8*
// CHECK-NEXT: [[WEAK:%.*]] = alloca i8*
// CHECK-NEXT: [[TEMP1:%.*]] = alloca i8*
// CHECK-NEXT: [[TEMP2:%.*]] = alloca i8*
// CHECK-NEXT: store i32
// CHECK-NEXT: store i8* null, i8** [[STRONG]]
// CHECK-NEXT: call i8* @objc_initWeak(i8** [[WEAK]], i8* null)
// CHECK-NEXT: [[T0:%.*]] = load i32* [[COND]]
// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
// CHECK: [[ARG:%.*]] = phi i8**
// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
// CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP1]]
// CHECK-NEXT: br i1 [[T0]],
// CHECK: [[T0:%.*]] = load i8** [[ARG]]
// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP1]]
// CHECK-NEXT: br label
// CHECK: call void @test34_sink(i8** [[T1]])
// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
// CHECK-NEXT: br i1 [[T0]],
// CHECK: [[T0:%.*]] = load i8** [[TEMP1]]
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = load i8** [[ARG]]
// CHECK-NEXT: store i8* [[T1]], i8** [[ARG]]
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK-NEXT: br label
// CHECK: [[T0:%.*]] = load i32* [[COND]]
// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
// CHECK: [[ARG:%.*]] = phi i8**
// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
// CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i8** null, i8** [[TEMP2]]
// CHECK-NEXT: br i1 [[T0]],
// CHECK: [[T0:%.*]] = call i8* @objc_loadWeak(i8** [[ARG]])
// CHECK-NEXT: store i8* [[T0]], i8** [[TEMP2]]
// CHECK-NEXT: br label
// CHECK: call void @test34_sink(i8** [[T1]])
// CHECK-NEXT: [[T0:%.*]] = icmp eq i8** [[ARG]], null
// CHECK-NEXT: br i1 [[T0]],
// CHECK: [[T0:%.*]] = load i8** [[TEMP2]]
// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[ARG]], i8* [[T0]])
// CHECK-NEXT: br label
// CHECK: call void @objc_destroyWeak(i8** [[WEAK]])
// CHECK: ret void
}
// CHECK: define void @test36
void test36(id x) {
// CHECK: [[X:%.*]] = alloca i8*
// CHECK: call i8* @objc_retain
// CHECK: call i8* @objc_retain
// CHECK: call i8* @objc_retain
id array[3] = { @"A", x, @"y" };
// CHECK: [[T0:%.*]] = load i8** [[X]]
// CHECK-NEXT: store i8* null, i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
x = 0;
// CHECK: br label
// CHECK: call void @objc_release
// CHECK: br i1
// CHECK: call void @objc_release
// CHECK-NEXT: ret void
}
@class Test37;
void test37(void) {
extern void test37_helper(id *);
Test37 *var;
test37_helper(&var);
// CHECK: define void @test37()
// CHECK: [[VAR:%.*]] = alloca [[TEST37:%.*]]*,
// CHECK-NEXT: [[TEMP:%.*]] = alloca i8*
// CHECK-NEXT: store [[TEST37]]* null, [[TEST37]]** [[VAR]]
// CHECK-NEXT: [[T0:%.*]] = load [[TEST37]]** [[VAR]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST37]]* [[T0]] to i8*
// CHECK-NEXT: store i8* [[T1]], i8** [[TEMP]]
// CHECK-NEXT: call void @test37_helper(i8** [[TEMP]])
// CHECK-NEXT: [[T0:%.*]] = load i8** [[TEMP]]
// CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to [[TEST37]]*
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST37]]* [[T1]] to i8*
// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_retain(i8* [[T2]])
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to [[TEST37]]*
// CHECK-NEXT: [[T5:%.*]] = load [[TEST37]]** [[VAR]]
// CHECK-NEXT: store [[TEST37]]* [[T4]], [[TEST37]]** [[VAR]]
// CHECK-NEXT: [[T6:%.*]] = bitcast [[TEST37]]* [[T5]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T6]])
// CHECK-NEXT: [[T0:%.*]] = load [[TEST37]]** [[VAR]]
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST37]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: ret void
}
@interface Test43 @end
@implementation Test43
- (id) test __attribute__((ns_returns_retained)) {
extern id test43_produce(void);
return test43_produce();
// CHECK: call i8* @test43_produce()
// CHECK-NEXT: call i8* @objc_retainAutoreleasedReturnValue(
// CHECK-NEXT: ret
}
@end
@interface Test45
@property (retain) id x;
@end
@implementation Test45
@synthesize x;
@end
// CHECK: define internal i8* @"\01-[Test45 x]"(
// CHECK: [[CALL:%.*]] = call i8* @objc_getProperty(
// CHECK-NEXT: ret i8* [[CALL]]
// rdar://problem/9315552
void test46(__weak id *wp, __weak volatile id *wvp) {
extern id test46_helper(void);
// TODO: this is sub-optimal, we should retain at the actual call site.
// CHECK: [[T0:%.*]] = call i8* @test46_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = load i8*** {{%.*}}, align 8
// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]])
// CHECK-NEXT: [[T4:%.*]] = call i8* @objc_retain(i8* [[T3]])
// CHECK-NEXT: store i8* [[T4]], i8**
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
id x = *wp = test46_helper();
// CHECK: [[T0:%.*]] = call i8* @test46_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = load i8*** {{%.*}}, align 8
// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[T2]], i8* [[T1]])
// CHECK-NEXT: [[T4:%.*]] = call i8* @objc_retain(i8* [[T3]])
// CHECK-NEXT: store i8* [[T4]], i8**
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
id y = *wvp = test46_helper();
}
// rdar://problem/9378887
void test47(void) {
extern id test47_helper(void);
id x = x = test47_helper();
// CHECK: define void @test47()
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: store i8* null, i8** [[X]]
// CHECK-NEXT: [[CALL:%.*]] = call i8* @test47_helper()
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]])
// CHECK-NEXT: [[T1:%.*]] = load i8** [[X]]
// CHECK-NEXT: store i8* [[T0]], i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: [[T3:%.*]] = load i8** [[X]]
// CHECK-NEXT: store i8* [[T2]], i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T3]])
// CHECK-NEXT: [[T4:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T4]])
// CHECK-NEXT: ret void
}
void test48(void) {
extern id test48_helper(void);
__weak id x = x = test48_helper();
// CHECK: define void @test48()
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_initWeak(i8** [[X]], i8* null)
// CHECK-NEXT: [[T1:%.*]] = call i8* @test48_helper()
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_storeWeak(i8** [[X]], i8* [[T2]])
// CHECK-NEXT: [[T4:%.*]] = call i8* @objc_storeWeak(i8** [[X]], i8* [[T3]])
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[X]])
// CHECK-NEXT: ret void
}
void test49(void) {
extern id test49_helper(void);
__autoreleasing id x = x = test49_helper();
// CHECK: define void @test49()
// CHECK: [[X:%.*]] = alloca i8*
// CHECK-NEXT: store i8* null, i8** [[X]]
// CHECK-NEXT: [[CALL:%.*]] = call i8* @test49_helper()
// CHECK-NEXT: [[T0:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[CALL]])
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_autorelease(i8* [[T0]])
// CHECK-NEXT: store i8* [[T2]], i8** [[X]]
// CHECK-NEXT: [[T3:%.*]] = call i8* @objc_retainAutorelease(i8* [[T1]])
// CHECK-NEXT: store i8* [[T3]], i8** [[X]]
// CHECK-NEXT: ret void
}
// rdar://9380136
id x();
void test50(id y) {
({x();});
// CHECK: [[T0:%.*]] = call i8* @objc_retain
// CHECK: call void @objc_release
}
// rdar://9400762
struct CGPoint {
float x;
float y;
};
typedef struct CGPoint CGPoint;
@interface Foo
@property (assign) CGPoint point;
@end
@implementation Foo
@synthesize point;
@end
// rdar://problem/9400398
id test52(void) {
id test52_helper(int) __attribute__((ns_returns_retained));
return ({ int x = 5; test52_helper(x); });
// CHECK: define i8* @test52()
// CHECK: [[X:%.*]] = alloca i32
// CHECK-NEXT: store i32 5, i32* [[X]],
// CHECK-NEXT: [[T0:%.*]] = load i32* [[X]],
// CHECK-NEXT: [[T1:%.*]] = call i8* @test52_helper(i32 [[T0]])
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[T1]])
// CHECK-NEXT: ret i8* [[T2]]
}
// rdar://problem/9400644
void test53(void) {
id test53_helper(void);
id x = ({ id y = test53_helper(); y; });
(void) x;
// CHECK: define void @test53()
// CHECK: [[X:%.*]] = alloca i8*,
// CHECK-NEXT: [[Y:%.*]] = alloca i8*,
// CHECK-NEXT: [[T0:%.*]] = call i8* @test53_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[Y]],
// CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]],
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retain(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = load i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK-NEXT: store i8* [[T1]], i8** [[X]],
// CHECK-NEXT: load i8** [[X]],
// CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: ret void
}
// <rdar://problem/9758798>
// CHECK: define void @test54(i32 %first, ...)
void test54(int first, ...) {
__builtin_va_list arglist;
// CHECK: call void @llvm.va_start
__builtin_va_start(arglist, first);
// CHECK: call i8* @objc_retain
id obj = __builtin_va_arg(arglist, id);
// CHECK: call void @llvm.va_end
__builtin_va_end(arglist);
// CHECK: call void @objc_release
// CHECK: ret void
}
// PR10228
@interface Test55Base @end
@interface Test55 : Test55Base @end
@implementation Test55 (Category)
- (void) dealloc {}
@end
// CHECK: define internal void @"\01-[Test55(Category) dealloc]"(
// CHECK-NOT: ret
// CHECK: call void bitcast (i8* ({{%.*}}*, i8*, ...)* @objc_msgSendSuper2 to void ({{%.*}}*, i8*)*)(
// rdar://problem/8024350
@protocol Test56Protocol
+ (id) make __attribute__((ns_returns_retained));
@end
@interface Test56<Test56Protocol> @end
@implementation Test56
// CHECK: define internal i8* @"\01+[Test56 make]"(
+ (id) make {
extern id test56_helper(void);
// CHECK: [[T0:%.*]] = call i8* @test56_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: ret i8* [[T1]]
return test56_helper();
}
@end
void test56_test(void) {
id x = [Test56 make];
// CHECK: define void @test56_test()
// CHECK: [[X:%.*]] = alloca i8*, align 8
// CHECK: [[T0:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*)*)(
// CHECK-NEXT: store i8* [[T0]], i8** [[X]]
// CHECK-NEXT: [[T0:%.*]] = load i8** [[X]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: ret void
}
// rdar://problem/9784964
@interface Test57
@property (nonatomic, strong) id strong;
@property (nonatomic, weak) id weak;
@property (nonatomic, unsafe_unretained) id unsafe;
@end
@implementation Test57
@synthesize strong, weak, unsafe;
@end
// CHECK: define internal i8* @"\01-[Test57 strong]"(
// CHECK: [[T0:%.*]] = load [[TEST57:%.*]]** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.strong"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = load i8** [[T4]]
// CHECK-NEXT: ret i8* [[T5]]
// CHECK: define internal i8* @"\01-[Test57 weak]"(
// CHECK: [[T0:%.*]] = load [[TEST57]]** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.weak"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T4]])
// CHECK-NEXT: [[T6:%.*]] = call i8* @objc_autoreleaseReturnValue(i8* [[T5]])
// CHECK-NEXT: ret i8* [[T6]]
// CHECK: define internal i8* @"\01-[Test57 unsafe]"(
// CHECK: [[T0:%.*]] = load [[TEST57]]** {{%.*}}
// CHECK-NEXT: [[T1:%.*]] = load i64* @"OBJC_IVAR_$_Test57.unsafe"
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST57]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i8* [[T2]], i64 [[T1]]
// CHECK-NEXT: [[T4:%.*]] = bitcast i8* [[T3]] to i8**
// CHECK-NEXT: [[T5:%.*]] = load i8** [[T4]]
// CHECK-NEXT: ret i8* [[T5]]
// rdar://problem/9821110
@interface Test58
- (char*) interior __attribute__((objc_returns_inner_pointer));
// Should we allow this on properties?
@end
extern Test58 *test58_helper(void);
// CHECK: define void @test58a()
void test58a(void) {
// CHECK: [[T0:%.*]] = call [[TEST58:%.*]]* @test58_helper()
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST58]]*
// CHECK-NEXT: store [[TEST58]]* [[T3]]
// CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutorelease(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST58]]*
// CHECK-NEXT: [[T4:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T5:%.*]] = bitcast [[TEST58]]* [[T3]] to i8*
// CHECK-NEXT: [[T6:%.*]] = call i8* bitcast
// CHECK-NEXT: store i8* [[T6]], i8**
// CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind, !clang.imprecise_release
// CHECK-NEXT: ret void
Test58 *ptr = test58_helper();
char *c = [(ptr) interior];
}
// CHECK: define void @test58b()
void test58b(void) {
// CHECK: [[T0:%.*]] = call [[TEST58:%.*]]* @test58_helper()
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST58]]*
// CHECK-NEXT: store [[TEST58]]* [[T3]]
// CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
// CHECK-NEXT: [[T1:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T2:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
// CHECK-NEXT: [[T3:%.*]] = call i8* bitcast
// CHECK-NEXT: store i8* [[T3]], i8**
// CHECK-NEXT: [[T0:%.*]] = load [[TEST58]]**
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST58]]* [[T0]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T1]]) nounwind
// CHECK-NOT: clang.imprecise_release
// CHECK-NEXT: ret void
__attribute__((objc_precise_lifetime)) Test58 *ptr = test58_helper();
char *c = [ptr interior];
}
// rdar://problem/9842343
void test59(void) {
extern id test59_getlock(void);
extern void test59_body(void);
@synchronized (test59_getlock()) {
test59_body();
}
// CHECK: define void @test59()
// CHECK: [[T0:%.*]] = call i8* @test59_getlock()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: call i32 @objc_sync_enter(i8* [[T1]])
// CHECK-NEXT: call void @test59_body()
// CHECK-NEXT: call i32 @objc_sync_exit(i8* [[T1]])
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
// CHECK-NEXT: ret void
}
// Verify that we don't try to reclaim the result of performSelector.
// rdar://problem/9887545
@interface Test61
- (id) performSelector: (SEL) selector;
- (void) test61_void;
- (id) test61_id;
@end
void test61(void) {
// CHECK: define void @test61()
// CHECK: [[Y:%.*]] = alloca i8*, align 8
extern id test61_make(void);
// CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T3:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]])
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
[test61_make() performSelector: @selector(test61_void)];
// CHECK-NEXT: [[T0:%.*]] = call i8* @test61_make()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: [[T2:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T3:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES_
// CHECK-NEXT: [[T4:%.*]] = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*, i8*, i8*)*)(i8* [[T1]], i8* [[T3]], i8* [[T2]])
// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T4]])
// CHECK-NEXT: store i8* [[T5]], i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[T1]])
id y = [test61_make() performSelector: @selector(test61_id)];
// CHECK-NEXT: [[T0:%.*]] = load i8** [[Y]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: ret void
}
// rdar://problem/9891815
void test62(void) {
// CHECK: define void @test62()
// CHECK: [[I:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[CLEANUP_VALUE:%.*]] = alloca i8*
// CHECK-NEXT: [[CLEANUP_REQUIRED:%.*]] = alloca i1
extern id test62_make(void);
extern void test62_body(void);
// CHECK-NEXT: store i32 0, i32* [[I]], align 4
// CHECK-NEXT: br label
// CHECK: [[T0:%.*]] = load i32* [[I]], align 4
// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 20
// CHECK-NEXT: br i1 [[T1]],
for (unsigned i = 0; i != 20; ++i) {
// CHECK: [[T0:%.*]] = load i32* [[I]], align 4
// CHECK-NEXT: [[T1:%.*]] = icmp ne i32 [[T0]], 0
// CHECK-NEXT: store i1 false, i1* [[CLEANUP_REQUIRED]]
// CHECK-NEXT: br i1 [[T1]],
// CHECK: [[T0:%.*]] = call i8* @test62_make()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[CLEANUP_VALUE]]
// CHECK-NEXT: store i1 true, i1* [[CLEANUP_REQUIRED]]
// CHECK-NEXT: [[T2:%.*]] = icmp ne i8* [[T1]], null
// CHECK-NEXT: br label
// CHECK: [[COND:%.*]] = phi i1 [ false, {{%.*}} ], [ [[T2]], {{%.*}} ]
// CHECK-NEXT: [[T0:%.*]] = load i1* [[CLEANUP_REQUIRED]]
// CHECK-NEXT: br i1 [[T0]],
// CHECK: [[T0:%.*]] = load i8** [[CLEANUP_VALUE]]
// CHECK-NEXT: call void @objc_release(i8* [[T0]])
// CHECK-NEXT: br label
// CHECK: br i1 [[COND]]
// CHECK: call void @test62_body()
// CHECK-NEXT: br label
// CHECK: br label
if (i != 0 && test62_make() != 0)
test62_body();
}
// CHECK: [[T0:%.*]] = load i32* [[I]], align 4
// CHECK-NEXT: [[T1:%.*]] = add i32 [[T0]], 1
// CHECK-NEXT: store i32 [[T1]], i32* [[I]]
// CHECK-NEXT: br label
// CHECK: ret void
}
// rdar://9971982
@class NSString;
@interface Person {
NSString *name;
}
@property NSString *address;
@end
@implementation Person
@synthesize address;
@end
// CHECK: call i8* @objc_getProperty
// CHECK: call void @objc_setProperty
// Verify that we successfully parse and preserve this attribute in
// this position.
@interface Test66
- (void) consume: (id __attribute__((ns_consumed))) ptr;
@end
void test66(void) {
extern Test66 *test66_receiver(void);
extern id test66_arg(void);
[test66_receiver() consume: test66_arg()];
}
// CHECK: define void @test66()
// CHECK: [[T0:%.*]] = call [[TEST66:%.*]]* @test66_receiver()
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST66]]* [[T0]] to i8*
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T1]])
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[TEST66]]*
// CHECK-NEXT: [[T4:%.*]] = call i8* @test66_arg()
// CHECK-NEXT: [[T5:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T4]])
// CHECK-NEXT: [[T6:%.*]] = load i8** @"\01L_OBJC_SELECTOR_REFERENCES
// CHECK-NEXT: [[T7:%.*]] = bitcast [[TEST66]]* [[T3]] to i8*
// CHECK-NEXT: [[SIX:%.*]] = icmp eq i8* [[T7]], null
// CHECK-NEXT: br i1 [[SIX]], label [[NULINIT:%.*]], label [[CALL:%.*]]
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i8*)*)(i8* [[T7]], i8* [[T6]], i8* [[T5]])
// CHECK-NEXT: br label [[CONT:%.*]]
// CHECK: call void @objc_release(i8* [[T5]]) nounwind
// CHECK-NEXT: br label [[CONT:%.*]]
// CHECK: [[T8:%.*]] = bitcast [[TEST66]]* [[T3]] to i8*
// CHECK-NEXT: call void @objc_release(i8* [[T8]])
// CHECK-NEXT: ret void
// rdar://problem/9953540
Class test67_helper(void);
void test67(void) {
Class cl = test67_helper();
}
// CHECK: define void @test67()
// CHECK: [[CL:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper()
// CHECK-NEXT: store i8* [[T0]], i8** [[CL]], align 8
// CHECK-NEXT: ret void
Class test68_helper(void);
void test68(void) {
__strong Class cl = test67_helper();
}
// CHECK: define void @test68()
// CHECK: [[CL:%.*]] = alloca i8*, align 8
// CHECK-NEXT: [[T0:%.*]] = call i8* @test67_helper()
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_retainAutoreleasedReturnValue(i8* [[T0]])
// CHECK-NEXT: store i8* [[T1]], i8** [[CL]], align 8
// CHECK-NEXT: [[T2:%.*]] = load i8** [[CL]]
// CHECK-NEXT: call void @objc_release(i8* [[T2]])
// CHECK-NEXT: ret void
// rdar://problem/10564852
@interface Test69 @end
@implementation Test69
- (id) foo { return self; }
@end
// CHECK: define internal i8* @"\01-[Test69 foo]"(
// CHECK: [[SELF:%.*]] = alloca [[TEST69:%.*]]*, align 8
// CHECK: [[T0:%.*]] = load [[TEST69]]** [[SELF]], align 8
// CHECK-NEXT: [[T1:%.*]] = bitcast [[TEST69]]* [[T0]] to i8*
// CHECK-NEXT: ret i8* [[T1]]
// rdar://problem/10907547
void test70(id i) {
// CHECK: define void @test70
// CHECK: store i8* null, i8**
// CHECK: store i8* null, i8**
// CHECK: [[ID:%.*]] = call i8* @objc_retain(i8*
// CHECK: store i8* [[ID]], i8**
id x[3] = {
[2] = i
};
}
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