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1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s2// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o - %s | FileCheck %s3 4/*5 6Here is a handy command for looking at llvm-gcc's output:7llvm-gcc -m64 -fobjc-gc -emit-llvm -S -o - ivar-layout-64.m | \8 grep 'OBJC_CLASS_NAME.* =.*global' | \9 sed -e 's#, section.*# ...#' | \10 sed -e 's#_[0-9]*"#_NNN#' | \11 sort12 13*/14 15@interface B @end16 17@interface A {18 struct s0 {19 int f0;20 int f1;21 } f0;22 id f1;23__weak B *f2;24 int f3 : 5;25 struct s1 {26 int *f0;27 int *f1;28 } f4[2][1];29}30@end31 32@interface C : A33@property int p3;34@end35 36// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"C\00"37// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11p\00"38// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!`\00"39 40 41@implementation C42@synthesize p3 = _p3;43@end44 45@interface A()46@property int p0;47@property (assign) __strong id p1;48@property (assign) __weak id p2;49@end50 51// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"A\00"52// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11q\10\00"53// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!q\00"54 55@implementation A56@synthesize p0 = _p0;57@synthesize p1 = _p1;58@synthesize p2 = _p2;59@end60 61@interface D : A62@property int p3;63@end64 65// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"D\00"66// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\11\A0\00"67// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!\90\00"68 69@implementation D70@synthesize p3 = _p3;71@end72 73typedef unsigned short UInt16;74 75 76typedef signed char BOOL;77typedef unsigned int FSCatalogInfoBitmap;78 79@interface NSFileLocationComponent {80 @private81 82 id _specifierOrStandardizedPath;83 BOOL _carbonCatalogInfoAndNameAreValid;84 FSCatalogInfoBitmap _carbonCatalogInfoMask;85 id _name;86 id _containerComponent;87 id _presentableName;88 id _iconAsAttributedString;89}90@end91 92// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"NSFileLocationComponent\00"93// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\01\14\00"94 95@implementation NSFileLocationComponent @end96 97@interface NSObject {98 id isa;99}100@end101 102@interface Foo : NSObject {103 id ivar;104 105 unsigned long bitfield :31;106 unsigned long bitfield2 :1;107 unsigned long bitfield3 :32;108}109@end110 111// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"Foo\00"112// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\10\00"113 114@implementation Foo @end115 116// GC layout strings aren't capable of expressing __strong ivars at117// non-word alignments.118struct __attribute__((packed)) PackedStruct {119 char c;120 __strong id x;121};122@interface Packed : NSObject {123 struct PackedStruct _packed;124}125@end126@implementation Packed @end127// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"Packed\00"128// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\01 \00"129// ' ' == 0x20130 131// Ensure that layout descends into anonymous unions and structs.132// Hilariously, anonymous unions and structs that appear directly as ivars133// are completely ignored by layout.134 135@interface AnonymousUnion : NSObject {136 struct {137 union {138 id _object;139 void *_ptr;140 };141 } a;142}143@end144@implementation AnonymousUnion @end145// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"AnonymousUnion\00"146// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\00"147 148@interface AnonymousStruct : NSObject {149 struct {150 struct {151 id _object;152 __weak id _weakref;153 };154 } a;155}156@end157@implementation AnonymousStruct @end158// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"AnonymousStruct\00"159// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"\02\10\00"160// CHECK: @OBJC_CLASS_NAME_{{.*}} = private unnamed_addr constant {{.*}} c"!\00"161// '!' == 0x21162