15d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <pthread.h> 3da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <stddef.h> 4da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <stdio.h> 5da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <unistd.h> 6da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 7da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyvoid *Thread1(void *x) { 8da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany int *p = (int*)x; 9da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany p[0] = 1; 10da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany return NULL; 11da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany} 12da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 13da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyvoid *Thread2(void *x) { 1463a22f073dcdfbabc492ca4c9eb06d0571915570Dmitry Vyukov sleep(1); 15da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany char *p = (char*)x; 16da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany p[2] = 1; 17da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany return NULL; 18da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany} 19da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 20da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyint main() { 2138a2f2ac4ec70d4a10c549a9d4ba55711a9ff3f8Dmitry Vyukov int *data = new int(42); 2238a2f2ac4ec70d4a10c549a9d4ba55711a9ff3f8Dmitry Vyukov fprintf(stderr, "ptr1=%p\n", data); 2338a2f2ac4ec70d4a10c549a9d4ba55711a9ff3f8Dmitry Vyukov fprintf(stderr, "ptr2=%p\n", (char*)data + 2); 24da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_t t[2]; 2538a2f2ac4ec70d4a10c549a9d4ba55711a9ff3f8Dmitry Vyukov pthread_create(&t[0], NULL, Thread1, data); 2638a2f2ac4ec70d4a10c549a9d4ba55711a9ff3f8Dmitry Vyukov pthread_create(&t[1], NULL, Thread2, data); 27da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_join(t[0], NULL); 28da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_join(t[1], NULL); 2938a2f2ac4ec70d4a10c549a9d4ba55711a9ff3f8Dmitry Vyukov delete data; 30da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany} 31da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 32da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany// CHECK: ptr1=[[PTR1:0x[0-9,a-f]+]] 33da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany// CHECK: ptr2=[[PTR2:0x[0-9,a-f]+]] 34da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany// CHECK: WARNING: ThreadSanitizer: data race 35ad9da372f962495b3487685232d09390be841b1cDmitry Vyukov// CHECK: Write of size 1 at [[PTR2]] by thread T2: 36ad9da372f962495b3487685232d09390be841b1cDmitry Vyukov// CHECK: Previous write of size 4 at [[PTR1]] by thread T1: 37