1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t
2*bcaeed49SFangrui Song // RUN: %deflake %run %t 2>&1 | FileCheck %s
3*bcaeed49SFangrui Song // RUN: %deflake %run %t arg 2>&1 | FileCheck %s
4*bcaeed49SFangrui Song #include "java.h"
5*bcaeed49SFangrui Song 
6*bcaeed49SFangrui Song jptr varaddr1_old;
7*bcaeed49SFangrui Song jptr varaddr2_old;
8*bcaeed49SFangrui Song jptr varaddr1_new;
9*bcaeed49SFangrui Song jptr varaddr2_new;
10*bcaeed49SFangrui Song 
11*bcaeed49SFangrui Song void *Thread(void *p) {
12*bcaeed49SFangrui Song   barrier_wait(&barrier);
13*bcaeed49SFangrui Song   *(int*)varaddr1_new = 43;
14*bcaeed49SFangrui Song   *(int*)varaddr2_new = 43;
15*bcaeed49SFangrui Song   return 0;
16*bcaeed49SFangrui Song }
17*bcaeed49SFangrui Song 
18*bcaeed49SFangrui Song int main(int argc, char **argv) {
19*bcaeed49SFangrui Song   barrier_init(&barrier, 2);
20*bcaeed49SFangrui Song   int const kHeapSize = 1024 * 1024;
21*bcaeed49SFangrui Song   void *jheap = malloc(kHeapSize);
22*bcaeed49SFangrui Song   jheap = (char*)jheap + 8;
23*bcaeed49SFangrui Song   __tsan_java_init((jptr)jheap, kHeapSize);
24*bcaeed49SFangrui Song   const int kBlockSize = 64;
25*bcaeed49SFangrui Song   int const kMove = 32;
26*bcaeed49SFangrui Song   varaddr1_old = (jptr)jheap;
27*bcaeed49SFangrui Song   varaddr2_old = (jptr)jheap + kBlockSize - 1;
28*bcaeed49SFangrui Song   varaddr1_new = varaddr1_old + kMove;
29*bcaeed49SFangrui Song   varaddr2_new = varaddr2_old + kMove;
30*bcaeed49SFangrui Song   if (argc > 1) {
31*bcaeed49SFangrui Song     // Move memory backwards.
32*bcaeed49SFangrui Song     varaddr1_old += kMove;
33*bcaeed49SFangrui Song     varaddr2_old += kMove;
34*bcaeed49SFangrui Song     varaddr1_new -= kMove;
35*bcaeed49SFangrui Song     varaddr2_new -= kMove;
36*bcaeed49SFangrui Song   }
37*bcaeed49SFangrui Song   __tsan_java_alloc(varaddr1_old, kBlockSize);
38*bcaeed49SFangrui Song 
39*bcaeed49SFangrui Song   pthread_t th;
40*bcaeed49SFangrui Song   pthread_create(&th, 0, Thread, 0);
41*bcaeed49SFangrui Song 
42*bcaeed49SFangrui Song   *(int*)varaddr1_old = 43;
43*bcaeed49SFangrui Song   *(int*)varaddr2_old = 43;
44*bcaeed49SFangrui Song 
45*bcaeed49SFangrui Song   __tsan_java_move(varaddr1_old, varaddr1_new, kBlockSize);
46*bcaeed49SFangrui Song   barrier_wait(&barrier);
47*bcaeed49SFangrui Song   pthread_join(th, 0);
48*bcaeed49SFangrui Song   __tsan_java_free(varaddr1_new, kBlockSize);
49*bcaeed49SFangrui Song   fprintf(stderr, "DONE\n");
50*bcaeed49SFangrui Song   return __tsan_java_fini();
51*bcaeed49SFangrui Song }
52*bcaeed49SFangrui Song 
53*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
54*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
55*bcaeed49SFangrui Song // CHECK: DONE
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