forked from OSchip/llvm-project
176 lines
7.0 KiB
Objective-C
176 lines
7.0 KiB
Objective-C
// RUN: %clang_cc1 -triple i386-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-exceptions -fobjc-runtime=macosx-fragile-10.10 -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple i386-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -fobjc-exceptions -fobjc-runtime=macosx-fragile-10.10 -o - %s | FileCheck %s -check-prefix=GLOBALS
|
|
|
|
@class Opaque;
|
|
|
|
@interface Root {
|
|
Class isa;
|
|
}
|
|
@end
|
|
|
|
@interface A : Root {
|
|
Opaque *strong;
|
|
__weak Opaque *weak;
|
|
}
|
|
@end
|
|
|
|
// GLOBALS-LABEL @OBJC_METACLASS_A
|
|
// Strong layout: scan the first word.
|
|
// GLOBALS: @OBJC_CLASS_NAME_{{.*}} = private global [2 x i8] c"\01\00"
|
|
// Weak layout: skip the first word, scan the second word.
|
|
// GLOBALS: @OBJC_CLASS_NAME_{{.*}} = private global [2 x i8] c"\11\00"
|
|
|
|
// 0x04002001
|
|
// ^ is compiled by ARC (controls interpretation of layouts)
|
|
// ^ has C++ structors (no distinction for zero-initializable)
|
|
// ^ factory (always set on non-metaclasses)
|
|
// GLOBALS: @OBJC_CLASS_A = private global {{.*}} i32 67117057
|
|
|
|
@implementation A
|
|
// CHECK-LABEL: define internal void @"\01-[A testStrong]"
|
|
// CHECK: [[SELFVAR:%.*]] = alloca [[A:%.*]]*, align 4
|
|
- (void) testStrong {
|
|
// CHECK: [[X:%.*]] = alloca [[OPAQUE:%.*]]*, align 4
|
|
// CHECK: [[SELF:%.*]] = load [[A]]*, [[A]]** [[SELFVAR]]
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[SELF]] to i8*
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 4
|
|
// CHECK-NEXT: [[IVAR:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]**
|
|
// CHECK-NEXT: [[T0:%.*]] = load [[OPAQUE]]*, [[OPAQUE]]** [[IVAR]]
|
|
// CHECK-NEXT: [[T1:%.*]] = bitcast [[OPAQUE]]* [[T0]] to i8*
|
|
// CHECK-NEXT: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
|
|
// CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to [[OPAQUE]]*
|
|
// CHECK-NEXT: store [[OPAQUE]]* [[T3]], [[OPAQUE]]** [[X]]
|
|
Opaque *x = strong;
|
|
// CHECK-NEXT: [[VALUE:%.*]] = load [[OPAQUE]]*, [[OPAQUE]]** [[X]]
|
|
// CHECK-NEXT: [[SELF:%.*]] = load [[A]]*, [[A]]** [[SELFVAR]]
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[SELF]] to i8*
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 4
|
|
// CHECK-NEXT: [[IVAR:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]**
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[IVAR]] to i8**
|
|
// CHECK-NEXT: [[T1:%.*]] = bitcast [[OPAQUE]]* [[VALUE]] to i8*
|
|
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* [[T1]])
|
|
strong = x;
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[X]] to i8**
|
|
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* null)
|
|
// CHECK-NEXT: ret void
|
|
}
|
|
|
|
// CHECK-LABEL: define internal void @"\01-[A testWeak]"
|
|
// CHECK: [[SELFVAR:%.*]] = alloca [[A]]*, align 4
|
|
- (void) testWeak {
|
|
// CHECK: [[X:%.*]] = alloca [[OPAQUE]]*, align 4
|
|
// CHECK: [[SELF:%.*]] = load [[A]]*, [[A]]** [[SELFVAR]]
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[SELF]] to i8*
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 8
|
|
// CHECK-NEXT: [[IVAR:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]**
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[IVAR]] to i8**
|
|
// CHECK-NEXT: [[T1:%.*]] = call i8* @objc_loadWeakRetained(i8** [[T0]])
|
|
// CHECK-NEXT: [[T2:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]*
|
|
// CHECK-NEXT: store [[OPAQUE]]* [[T2]], [[OPAQUE]]** [[X]]
|
|
Opaque *x = weak;
|
|
// CHECK-NEXT: [[VALUE:%.*]] = load [[OPAQUE]]*, [[OPAQUE]]** [[X]]
|
|
// CHECK-NEXT: [[SELF:%.*]] = load [[A]]*, [[A]]** [[SELFVAR]]
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[SELF]] to i8*
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 8
|
|
// CHECK-NEXT: [[IVAR:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]**
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[IVAR]] to i8**
|
|
// CHECK-NEXT: [[T1:%.*]] = bitcast [[OPAQUE]]* [[VALUE]] to i8*
|
|
// CHECK-NEXT: call i8* @objc_storeWeak(i8** [[T0]], i8* [[T1]])
|
|
weak = x;
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[X]] to i8**
|
|
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* null)
|
|
// CHECK-NEXT: ret void
|
|
}
|
|
|
|
// CHECK-LABEL: define internal void @"\01-[A .cxx_destruct]"
|
|
// CHECK: [[SELFVAR:%.*]] = alloca [[A]]*, align 4
|
|
// CHECK: [[SELF:%.*]] = load [[A]]*, [[A]]** [[SELFVAR]]
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[SELF]] to i8*
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 8
|
|
// CHECK-NEXT: [[IVAR:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]**
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[IVAR]] to i8**
|
|
// CHECK-NEXT: call void @objc_destroyWeak(i8** [[T0]])
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[A]]* [[SELF]] to i8*
|
|
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds i8, i8* [[T0]], i32 4
|
|
// CHECK-NEXT: [[IVAR:%.*]] = bitcast i8* [[T1]] to [[OPAQUE]]**
|
|
// CHECK-NEXT: [[T0:%.*]] = bitcast [[OPAQUE]]** [[IVAR]] to i8**
|
|
// CHECK-NEXT: call void @objc_storeStrong(i8** [[T0]], i8* null)
|
|
// CHECK-NEXT: ret void
|
|
@end
|
|
|
|
// Test case for corner case of ivar layout.
|
|
@interface B : A {
|
|
char _b_flag;
|
|
}
|
|
@end
|
|
|
|
@interface C : B {
|
|
char _c_flag;
|
|
__unsafe_unretained id c_unsafe[5];
|
|
id c_strong[4];
|
|
__weak id c_weak[3];
|
|
id c_strong2[7];
|
|
}
|
|
@end
|
|
@implementation C @end
|
|
|
|
// Note that these layouts implicitly start at the end of the previous
|
|
// class rounded up to pointer alignment.
|
|
// GLOBALS-LABEL: @OBJC_METACLASS_C
|
|
// Strong layout: skip five, scan four, skip three, scan seven
|
|
// 'T' == 0x54, '7' == 0x37
|
|
// GLOBALS: @OBJC_CLASS_NAME_{{.*}} = private global [3 x i8] c"T7\00"
|
|
// Weak layout: skip nine, scan three
|
|
// GLOBALS: @OBJC_CLASS_NAME_{{.*}} = private global [2 x i8] c"\93\00"
|
|
|
|
extern void useBlock(void (^block)(void));
|
|
|
|
// 256 == 0x100 == starts with 1 strong
|
|
// GLOBALS: @__block_descriptor_tmp{{.*}} = internal constant {{.*}}, i32 256 }
|
|
void testBlockLayoutStrong(id x) {
|
|
useBlock(^{ (void) x; });
|
|
}
|
|
|
|
// 1 == 0x001 == starts with 1 weak
|
|
// GLOBALS: @__block_descriptor_tmp{{.*}} = internal constant {{.*}}, i32 1 }
|
|
void testBlockLayoutWeak(__weak id x) {
|
|
useBlock(^{ (void) x; });
|
|
}
|
|
|
|
// CHECK-LABEL: define void @testCatch()
|
|
// CHECK: [[X:%.*]] = alloca [[A:%.*]]*, align 4
|
|
// CHECK: [[Y:%.*]] = alloca i8*, align 4
|
|
// CHECK: call void @objc_exception_try_enter
|
|
// CHECK: br i1
|
|
// CHECK: call void @checkpoint(i32 0)
|
|
// CHECK: call void @objc_exception_try_exit
|
|
// CHECK: br label
|
|
// CHECK: call void @checkpoint(i32 3)
|
|
// CHECK: [[EXN:%.*]] = call i8* @objc_exception_extract
|
|
// CHECK: call i32 @objc_exception_match(
|
|
// CHECK: br i1
|
|
// CHECK: [[T0:%.*]] = bitcast i8* [[EXN]] to [[A]]*
|
|
// CHECK: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
|
|
// CHECK: [[T2:%.*]] = call i8* @objc_retain(i8* [[T1]])
|
|
// CHECK: [[T3:%.*]] = bitcast i8* [[T2]] to [[A]]*
|
|
// CHECK: store [[A]]* [[T3]], [[A]]** [[X]]
|
|
// CHECK: call void @checkpoint(i32 1)
|
|
// CHECK: [[T0:%.*]] = bitcast [[A]]** [[X]] to i8**
|
|
// CHECK: call void @objc_storeStrong(i8** [[T0]], i8* null)
|
|
// CHECK: br label
|
|
// CHECK: [[T0:%.*]] = call i8* @objc_retain(i8* [[EXN]])
|
|
// CHECK: store i8* [[T0]], i8** [[Y]]
|
|
// CHECK: call void @checkpoint(i32 2)
|
|
// CHECK: call void @objc_storeStrong(i8** [[Y]], i8* null)
|
|
extern void checkpoint(int n);
|
|
void testCatch() {
|
|
@try {
|
|
checkpoint(0);
|
|
} @catch (A *x) {
|
|
checkpoint(1);
|
|
} @catch (id y) {
|
|
checkpoint(2);
|
|
}
|
|
checkpoint(3);
|
|
}
|