ivar-layout-64.m
4.07 KB
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s
/*
Here is a handy command for looking at llvm-gcc's output:
llvm-gcc -m64 -fobjc-gc -emit-llvm -S -o - ivar-layout-64.m | \
grep 'OBJC_CLASS_NAME.* =.*global' | \
sed -e 's#, section.*# ...#' | \
sed -e 's#_[0-9]*"#_NNN#' | \
sort
*/
@interface B @end
@interface A {
struct s0 {
int f0;
int f1;
} f0;
id f1;
__weak B *f2;
int f3 : 5;
struct s1 {
int *f0;
int *f1;
} f4[2][1];
}
@end
@interface C : A
@property int p3;
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"C\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11p\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!`\00"
@implementation C
@synthesize p3 = _p3;
@end
@interface A()
@property int p0;
@property (assign) __strong id p1;
@property (assign) __weak id p2;
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"A\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11q\10\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!q\00"
@implementation A
@synthesize p0 = _p0;
@synthesize p1 = _p1;
@synthesize p2 = _p2;
@end
@interface D : A
@property int p3;
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"D\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11p\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!`\00"
@implementation D
@synthesize p3 = _p3;
@end
typedef unsigned short UInt16;
typedef signed char BOOL;
typedef unsigned int FSCatalogInfoBitmap;
@interface NSFileLocationComponent {
@private
id _specifierOrStandardizedPath;
BOOL _carbonCatalogInfoAndNameAreValid;
FSCatalogInfoBitmap _carbonCatalogInfoMask;
id _name;
id _containerComponent;
id _presentableName;
id _iconAsAttributedString;
}
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"NSFileLocationComponent\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\01\14\00"
@implementation NSFileLocationComponent @end
@interface NSObject {
id isa;
}
@end
@interface Foo : NSObject {
id ivar;
unsigned long bitfield :31;
unsigned long bitfield2 :1;
unsigned long bitfield3 :32;
}
@end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"Foo\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\10\00"
@implementation Foo @end
// GC layout strings aren't capable of expressing __strong ivars at
// non-word alignments.
struct __attribute__((packed)) PackedStruct {
char c;
__strong id x;
};
@interface Packed : NSObject {
struct PackedStruct _packed;
}
@end
@implementation Packed @end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"Packed\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\01 \00"
// ' ' == 0x20
// Ensure that layout descends into anonymous unions and structs.
// Hilariously, anonymous unions and structs that appear directly as ivars
// are completely ignored by layout.
@interface AnonymousUnion : NSObject {
struct {
union {
id _object;
void *_ptr;
};
} a;
}
@end
@implementation AnonymousUnion @end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"AnonymousUnion\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\00"
@interface AnonymousStruct : NSObject {
struct {
struct {
id _object;
__weak id _weakref;
};
} a;
}
@end
@implementation AnonymousStruct @end
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"AnonymousStruct\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\10\00"
// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!\00"
// '!' == 0x21