File: live-variables.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 (24 lines) | stat: -rw-r--r-- 754 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
// RUN: %clang_analyze_cc1 -analyzer-checker=core -fobjc-arc -verify %s
// expected-no-diagnostics
@interface NSObject
@end
@interface NSString : NSObject
- (id)lastPathComponent;
@end
int getBool(void);
int *getPtr(void);
int foo(void) {
  int r = 0;
  NSString *filename = @"filename";
  for (int x = 0; x< 10; x++) {
    int *p = getPtr();
    // Liveness info is not computed correctly due to the following expression.
    // This happens due to CFG being special cased for short circuit operators.
    // Note, due to ObjC method call, the outermost logical operator is wrapped in ExprWithCleanups.
    // PR18159
    if ((p != 0) && (getBool()) && ([filename lastPathComponent]) && (getBool())) {
      r = *p; // no-warning
    }
  }
  return r;
}