llvm-project/clang/test/CodeGenObjC/ivar-layout-array0-struct.m

// REQUIRES: x86-64-registered-target
// RUN: %clang_cc1 -fobjc-gc -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -O0 -S %s -o %t-64.s
// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s

// rdar://8800513
@interface NSObject {
  id isa;
}
@end

typedef struct {
    id b;
} st;

@interface Test : NSObject {
    int a;
    st b[0];
}
@end

@implementation Test @end
// CHECK-LP64: L_OBJC_CLASS_NAME_4:
// CHECK-LP64-NEXT: .asciz      "\001\020"
These tests require particular registered targets. Declared as such. llvm-svn: 132600 2011-06-03 22:24:54 +00:00			`// REQUIRES: x86-64-registered-target`
Restructure how the driver communicates information about the 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 2012-06-20 06:18:46 +00:00			`// RUN: %clang_cc1 -fobjc-gc -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.5 -O0 -S %s -o %t-64.s`
Consider zero-length array of structs when computing ivar layouts for objc-gc. Fixes // rdar://8800513 llvm-svn: 122762 2011-01-03 19:23:18 +00:00			`// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s`

			`// rdar://8800513`
			`@interface NSObject {`
			`id isa;`
			`}`
			`@end`

			`typedef struct {`
			`id b;`
			`} st;`

			`@interface Test : NSObject {`
			`int a;`
			`st b[0];`
			`}`
			`@end`

			`@implementation Test @end`
			`// CHECK-LP64: L_OBJC_CLASS_NAME_4:`
			`// CHECK-LP64-NEXT: .asciz "\001\020"`