5fb5df9c83
target Objective-C runtime down to the frontend: break this down into a single target runtime kind and version, and compute all the relevant information from that. This makes it relatively painless to add support for new runtimes to the compiler. Make the new -cc1 flag, -fobjc-runtime=blah-x.y.z, available at the driver level as a better and more general alternative to -fgnu-runtime and -fnext-runtime. This new concept of an Objective-C runtime also encompasses what we were previously separating out as the "Objective-C ABI", so fragile vs. non-fragile runtimes are now really modelled as different kinds of runtime, paving the way for better overall differentiation. As a sort of special case, continue to accept the -cc1 flag -fobjc-runtime-has-weak, as a sop to PLCompatibilityWeak. I won't go so far as to say "no functionality change", even ignoring the new driver flag, but subtle changes in driver semantics are almost certainly not intended. llvm-svn: 158793
74 lines
1.7 KiB
Objective-C
74 lines
1.7 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck -check-prefix LP64 %s
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// RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck -check-prefix LP32 %s
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typedef struct objc_class *Class;
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typedef struct objc_object {
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Class isa;
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} *id;
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@interface I
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+ (Class) class;
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- (void)meth : (id)object : (id)src_object;
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+ (unsigned char) isSubclassOfClass:(Class)aClass ;
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@end
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@implementation I
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+ (Class) class {return 0;}
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+ (unsigned char) isSubclassOfClass:(Class)aClass {return 0;}
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- (void)meth : (id)object : (id)src_object {
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[object->isa isSubclassOfClass:[I class]];
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[(*object).isa isSubclassOfClass:[I class]];
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object->isa = src_object->isa;
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(*src_object).isa = (*object).isa;
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}
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@end
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// rdar 7470820
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static Class MyClass;
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Class Test(const void *inObject1) {
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if(((id)inObject1)->isa == MyClass)
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return ((id)inObject1)->isa;
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return (id)0;
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}
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// rdar 7609722
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@interface Foo {
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@public
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id isa;
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}
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+(id)method;
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@end
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id Test2() {
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if([Foo method]->isa)
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return (*[Foo method]).isa;
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return [Foo method]->isa;
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}
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// rdar 7709015
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@interface Cat {}
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@end
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@interface SuperCat : Cat {}
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+(void)geneticallyAlterCat:(Cat *)cat;
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@end
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@implementation SuperCat
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+ (void)geneticallyAlterCat:(Cat *)cat {
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Class dynamicSubclass;
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((id)cat)->isa = dynamicSubclass;
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}
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@end
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// CHECK-LP64: %{{.*}} = load i8** %
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// CHECK-NEXT: %{{.*}} = bitcast i8* %{{.*}} to i8**
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// CHECK-NEXT: store i8* %{{.*}}, i8** %{{.*}}
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// CHECK-LP32: %{{.*}} = load i8** %
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// CHECK-NEXT: %{{.*}} = bitcast i8* %{{.*}} to i8**
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// CHECK-NEXT: store i8* %{{.*}}, i8** %{{.*}}
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