1// RUN: %clang_tsan -O2 %s -o %t
2// RUN: %env_tsan_opts=check_printf=1 %run %t 2>&1 | FileCheck %s
3// RUN: %env_tsan_opts=check_printf=0 %run %t 2>&1 | FileCheck %s
4// RUN: %run %t 2>&1 | FileCheck %s
5
6#include <stdio.h>
7int main() {
8 volatile char c = '0';
9 volatile int x = 12;
10 volatile float f = 1.239;
11 volatile char s[] = "34";
12 printf("%c %d %.3f %s\n", c, x, f, s);
13 return 0;
14 // Check that printf works fine under Tsan.
15 // CHECK: 0 12 1.239 34
16}
17