1*bcaeed49SFangrui Song // RUN: rm -rf %t-dir 2*bcaeed49SFangrui Song // RUN: mkdir %t-dir 3*bcaeed49SFangrui Song 4*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cpp.exe && %deflake %run %t-dir/global_race.cpp.exe 2>&1 \ 5*bcaeed49SFangrui Song // RUN: | FileCheck %s 6*bcaeed49SFangrui Song 7*bcaeed49SFangrui Song // Also check that memory access instrumentation can be configured by either 8*bcaeed49SFangrui Song // driver or legacy flags: 9*bcaeed49SFangrui Song 10*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cpp.exe -fno-sanitize-thread-memory-access && not %deflake %run %t-dir/global_race.cpp.exe 2>&1 \ 11*bcaeed49SFangrui Song // RUN: | FileCheck --allow-empty --check-prefix=CHECK-MEMORY-ACCESS-OFF %s 12*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cpp.exe -mllvm -tsan-instrument-memory-accesses=0 && not %deflake %run %t-dir/global_race.cpp.exe 2>&1 \ 13*bcaeed49SFangrui Song // RUN: | FileCheck --allow-empty --check-prefix=CHECK-MEMORY-ACCESS-OFF %s 14*bcaeed49SFangrui Song 15*bcaeed49SFangrui Song #include "test.h" 16*bcaeed49SFangrui Song 17*bcaeed49SFangrui Song int GlobalData[10]; 18*bcaeed49SFangrui Song Thread(void * a)19*bcaeed49SFangrui Songvoid *Thread(void *a) { 20*bcaeed49SFangrui Song barrier_wait(&barrier); 21*bcaeed49SFangrui Song GlobalData[2] = 42; 22*bcaeed49SFangrui Song return 0; 23*bcaeed49SFangrui Song } 24*bcaeed49SFangrui Song main()25*bcaeed49SFangrui Songint main() { 26*bcaeed49SFangrui Song barrier_init(&barrier, 2); 27*bcaeed49SFangrui Song print_address("addr=", 1, GlobalData); 28*bcaeed49SFangrui Song pthread_t t; 29*bcaeed49SFangrui Song pthread_create(&t, 0, Thread, 0); 30*bcaeed49SFangrui Song GlobalData[2] = 43; 31*bcaeed49SFangrui Song barrier_wait(&barrier); 32*bcaeed49SFangrui Song pthread_join(t, 0); 33*bcaeed49SFangrui Song } 34*bcaeed49SFangrui Song 35*bcaeed49SFangrui Song // CHECK: addr=[[ADDR:0x[0-9,a-f]+]] 36*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race 37*bcaeed49SFangrui Song // CHECK: Location is global 'GlobalData' {{(of size 40 )?}}at [[ADDR]] (global_race.cpp.exe+0x{{[0-9,a-f]+}}) 38*bcaeed49SFangrui Song 39*bcaeed49SFangrui Song // CHECK-MEMORY-ACCESS-OFF-NOT: WARNING: ThreadSanitizer: data race 40