File: live-variables.cpp

package info (click to toggle)
llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 493,332 kB
  • sloc: cpp: 2,698,100; ansic: 552,773; asm: 128,821; python: 121,589; objc: 105,054; sh: 21,174; lisp: 6,758; ml: 5,532; perl: 5,311; pascal: 5,245; makefile: 2,083; cs: 1,868; xml: 686; php: 212; csh: 117
file content (23 lines) | stat: -rw-r--r-- 633 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
// RUN: %clang_cc1 -analyze -analyzer-checker=core -verify %s
// expected-no-diagnostics
class B {
public:
  bool m;
  ~B() {} // The destructor ensures that the binary logical operator below is wrapped in the ExprWithCleanups.
};
B foo();
int getBool();
int *getPtr();
int test() {
  int r = 0;
  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.
    // PR18159
    if (p != 0 && getBool() && foo().m && getBool()) {
      r = *p; // no warning
    }
  }
  return r;
}