65f0785fff
If the return block is unreachable, clang removes it in CodeGenFunction::FinishFunction(). This removal can leave dangling references to values defined in the return block if the return block has successors, which it /would/ if UBSan's return value check is emitted. In this case, as the UBSan check wouldn't be reachable, it's better to simply not emit it. rdar://59196131
15 lines
471 B
Objective-C
15 lines
471 B
Objective-C
// RUN: %clang_cc1 -fsanitize=nullability-return -emit-llvm %s -o - -triple x86_64-apple-macosx10.10.0 -Wno-objc-root-class | FileCheck %s
|
|
|
|
// CHECK-LABEL: define internal i8* @"\01-[I init]"
|
|
// CHECK: unreachable
|
|
// CHECK-NEXT: }
|
|
|
|
#pragma clang assume_nonnull begin
|
|
@interface I
|
|
- (instancetype)init __attribute__((unavailable));
|
|
@end
|
|
@implementation I
|
|
- (instancetype)init __attribute__((unavailable)) { __builtin_unreachable(); }
|
|
@end
|
|
#pragma clang assume_nonnull end
|