File: atomic-compare.c

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (26 lines) | stat: -rw-r--r-- 929 bytes parent folder | download | duplicates (33) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
// RUN: %clang_cc1 %s -verify -fsyntax-only -Wno-logical-not-parentheses

void f(_Atomic(int) a, _Atomic(int) b) {
  if (a > b)      {} // no warning
  if (a < b)      {} // no warning
  if (a >= b)     {} // no warning
  if (a <= b)     {} // no warning
  if (a == b)     {} // no warning
  if (a != b)     {} // no warning

  if (a == 0) {} // no warning
  if (a > 0) {} // no warning
  if (a > 1) {} // no warning
  if (a > 2) {} // no warning

  if (!a > 0) {}  // no warning
  if (!a > 1)     {} // expected-warning {{comparison of constant 1 with boolean expression is always false}}
  if (!a > 2)     {} // expected-warning {{comparison of constant 2 with boolean expression is always false}}
  if (!a > b)     {} // no warning
  if (!a > -1)    {} // expected-warning {{comparison of constant -1 with boolean expression is always true}}
}

typedef _Atomic(int) Ty;
void PR23638(Ty *a) {
  if (*a == 1) {} // no warning
}