| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck -check-prefix CHECK-LP64 %s |
| // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck -check-prefix CHECK-LP32 %s |
| |
| typedef struct objc_class *Class; |
| |
| typedef struct objc_object { |
| Class isa; |
| } *id; |
| |
| @interface I |
| + (Class) class; |
| - (void)meth : (id)object : (id)src_object; |
| + (unsigned char) isSubclassOfClass:(Class)aClass ; |
| @end |
| |
| @implementation I |
| + (Class) class {return 0;} |
| + (unsigned char) isSubclassOfClass:(Class)aClass {return 0;} |
| - (void)meth : (id)object : (id)src_object { |
| [object->isa isSubclassOfClass:[I class]]; |
| |
| [(*object).isa isSubclassOfClass:[I class]]; |
| |
| object->isa = src_object->isa; |
| (*src_object).isa = (*object).isa; |
| } |
| @end |
| |
| |
| // rdar 7470820 |
| static Class MyClass; |
| |
| Class Test(const void *inObject1) { |
| if(((id)inObject1)->isa == MyClass) |
| return ((id)inObject1)->isa; |
| return (id)0; |
| } |
| |
| // rdar 7609722 |
| @interface Foo { |
| @public |
| id isa; |
| } |
| +(id)method; |
| @end |
| |
| id Test2() { |
| if([Foo method]->isa) |
| return (*[Foo method]).isa; |
| return [Foo method]->isa; |
| } |
| |
| // rdar 7709015 |
| @interface Cat {} |
| @end |
| |
| @interface SuperCat : Cat {} |
| +(void)geneticallyAlterCat:(Cat *)cat; |
| @end |
| |
| @implementation SuperCat |
| + (void)geneticallyAlterCat:(Cat *)cat { |
| Class dynamicSubclass; |
| ((id)cat)->isa = dynamicSubclass; |
| } |
| @end |
| // CHECK-LP64: %{{.*}} = load i8*, i8** % |
| // CHECK-NEXT: %{{.*}} = bitcast i8* %{{.*}} to i8** |
| // CHECK-NEXT: store i8* %{{.*}}, i8** %{{.*}} |
| |
| // CHECK-LP32: %{{.*}} = load i8*, i8** % |
| // CHECK-NEXT: %{{.*}} = bitcast i8* %{{.*}} to i8** |
| // CHECK-NEXT: store i8* %{{.*}}, i8** %{{.*}} |