File: objc-arc-container-subscripting.m

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (20 lines) | stat: -rw-r--r-- 700 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
// RUN: %clang_cc1 -fobjc-arc -emit-llvm -triple x86_64-apple-darwin -o - %s | FileCheck %s

@interface NSMutableArray
- (id)objectAtIndexedSubscript:(int)index;
- (void)setObject:(id)object atIndexedSubscript:(int)index;
@end

id func(void) {
  NSMutableArray *array;
  array[3] = 0;
  return array[3];
}

// CHECK: [[call:%.*]] = call ptr @objc_msgSend
// CHECK: [[SIX:%.*]] = notail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr [[call]]) [[NUW:#[0-9]+]]
// CHECK: call void @llvm.objc.storeStrong(ptr {{%.*}}, ptr null)
// CHECK: [[EIGHT:%.*]] = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr [[SIX]]) [[NUW]]
// CHECK: ret ptr [[EIGHT]]

// CHECK: attributes [[NUW]] = { nounwind }