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> main()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