xref: /llvm-project/clang/test/CodeGenObjC/null-check-bool-ret.m (revision 7c1d9b15eee3a34678addab2bab66f3020ac0753) 
1// RUN: %clang_cc1 -triple arm64e-apple-ios15.0.0-bc -fobjc-arc -disable-llvm-passes %s -emit-llvm -o - | FileCheck %s
2
3@protocol NSObject
4@end
5
6@interface NSObject <NSObject>
7@end
8
9@interface WidgetTester : NSObject
10@end
11
12@implementation WidgetTester
13
14typedef struct {
15    NSObject* impl;
16} widget_t;
17
18- (_Bool)withWidget:(widget_t)widget {
19    return 0;
20}
21
22- (_Bool)testWidget:(widget_t)widget {
23    return [self withWidget:widget];
24}
25
26@end
27
28// CHECK-LABEL: msgSend.call:
29// CHECK: [[CALL:%[^ ]+]] = call i1 @objc_msgSend
30// CHECK-NEXT: br label %msgSend.cont
31
32// CHECK-LABEL: msgSend.null-receiver:
33// CHECK: br label %msgSend.cont
34
35// CHECK-LABEL: msgSend.cont:
36// CHECK-NEXT: {{%[^ ]+}} = phi i1 [ [[CALL]], %msgSend.call ], [ false, %msgSend.null-receiver ]
37